{"header":{"message":"editing source code from within the app","description":"integrated from pong.love: https://merveilles.town/@akkartik/108933336531898243","timestamp":"2022-09-03T20:54:38Z","authors":[{"email":"vc@akkartik.com","name":"Kartik K. Agaram"}]},"hash":"JOPVPUSAMMU6RFVDQR4NJC4GNNUFB7GPKVH7OS5FKCYS5QZ53VLQC","authors":[],"deps":{"hashes":[["JOPVPUSAMMU6RFVDQR4NJC4GNNUFB7GPKVH7OS5FKCYS5QZ53VLQC","editing source code from within the app"],["AA",null],["UEE5W7WJ46FIBN4ZH45Z33L4RYXK5AP5ZIBHYTFOJTDWVVX54QKAC","document one more shortcut"],["7Q6GKOOL56VGLW3WCFTMXIGBIBNBJ5AD7LB5KJGZFAUUDIEYXE2QC","."],["TXDMRA5JEAML2GF5QY4ATU22G3NI7DQWPGO4U5OZNP7NGK4JT6WQC","bugfix: alt-tab shouldn't emit keypress events"],["AGJXIDOFAZEKPSGDVZJAZXNOKQLTVZUKOCIYFN4AB4YEWVRFRNRAC","hardcode some assumptions about how this app uses love"],["5F54FYKIMKS6TBV23M2GZ6N55VGHPBN66RO5XQS7ZY2GDZSSUJQAC","Merge lines.love"],["Z6HI3K55DX3BK25SGJ5B5KYGNRPV6WH65QLN65BFPWD7L6WB7IHQC","correct a comment"],["VNTRXQSX3XPYYZYP6ZJDIOCKQDMDBIZ2ZWRPSXPG37Q4IHCRDKIAC","Merge lines.love"],["2Y7YH7UPQWDNYDJN4BYY2MOHA36B2BIRX6DMIAKHJPQC7UP2R6NQC","infrastructure for caching LÖVE text objects"],["QGO66DNKCM6NNXLSKKOVDLBIJ43UKN6APMF2BLO2KM4F3J7AH7KQC","initialize screen width to something reasonable"],["K464QQR4FTXFUMHFWAGOD5DJ6YHUBUKRHLXF2ORE74DVT7TVQ35QC","more defensive resize handling"],["5ZA3BRNYWKSGEBJ4JLA4UBC3LJPT5JBWYCU7PQYRSGX6MJMEWDIQC","add state arg to a few functions"],["U76D4P367BI2LN7UWQ5R26T6FPYL3RRZS4SBH3QZB4F57C7SFRWQC","fix a typo"],["ESETRNLB3MIJ2SID6HJMMP52FEVUBLGK2HLWD75KDQZAKQMKSF2QC","bugfix: printing the first part of a line at the bottom made it seem non-wrapping"],["S7ZZA3YEKYGLBN6UC2N7WGUS43L6MX2KQQ2LBUZT4FQ7K7V5IQGQC","ugh, handle absolute as well as relative paths"],["UYRAO73Y4LMTBBSH5RGNSNR532NFLRU5N5CJW3VIG72GZZXC654AC","enable pressing and holding backspace"],["ZLJGZYQGQ2S4UFWTVF4PQDSGMP6A4IS4GDHCMBAAA5SK2N2NWR3QC","select text with shift + mouseclick"],["G77XIN7MLX465AXLXDUJDGEHXXCMR2Q7K25UAMKQERBJGNJPNW6AC","selecting a stroke"],["PWHZPJJM7UZW2VILT5TZBDZHIXXXBASVSBQB3A5EEMOFJTI6ADYAC","always show current filename in window title"],["6VXO3ZL3P7NCX2SEOUDCTTRB4J46G5RXVTUYXFJBLNZA23I2ZZYQC","just keep the cursor visible after any input events"],["EMHRPJ3RAVIVJEQIRXIVDGENV6QHUUGXXRWTJ3BXC7SZNC66VK5QC","no, that's not right"],["AVLAYODPMKCDBUFJSTGNUXIK74V3NDCBH55DBBFTNVBMFY6I7BCAC","much simpler"],["VHQCNMARPMNBSIUFLJG7HVK4QGDNPCGNVFLHS3I4IGNVSV5MRLYQC","several more modules"],["7M7LS7I2QT6AFZ6RVK5KK2CZ6SNJAMQIWD7MX34F7MQ3MZKH72GAC","start saving some settings to disk on quit"],["2L5MEZV344TOZLVY3432RHJFIRVXFD6O3GWLL5O4CV66BGAFTURQC","experiment: new edit namespace"],["AOIRVVJARCGTWTRE5MAAU4YQAGD5J4HTR7XCS63UFAUY3A43L6NQC","revert selection logic to before commit 3ffc2ed8f"],["HRWN5V6J6VMXS7WNSRGI7WMUSZ2OI52JJ4IK352VVSDZI4EF5HHQC","Devine's suggestion to try to live with just freehand"],["K2X6G75Z6XBC4DVIRWC5HC7XA3A2SKOM3MWSQTCFEYWIJL7LME2QC","start writing some tests for drawings"],["AM42E4Y6RLS7QPWBMESL6H5RPFKG5LQYM6EFNB5UYSRSUASKLISQC","avoid redundant writes on exit"],["VSBSWTE4IVQDRXLPQ7VTDIIEBEF7GMGRBHZ2IA73ZR6B2KZWI5JAC","bugfix: where cursor is drawn"],["32V6ZHQBHMVAY66WO5FAHXPY6W6PWNAURIRNN3S63YUCL5LCH4LAC","Merge lines.love"],["JCSLDGAH2F6AIY4Z6XM6K4LOMW7EFY3E4NF5YXLMHLTYTX3A4Z3QC","beginnings of support for multiple shapes"],["O2UFJ6G3MDBJFSABWAJWTZGP6VAKRMQ6XCMILLQRRSS43C3UF2OQC","switch from freehand to just straight lines"],["ICIIP4DBZEYFB6LITMFZ4BVGC4ZI6GONCSNXPBVEGXYXVCCZ53OAC","slightly better default sizing of drawings"],["BULPIBEGL7TMK6CVIE7IS7WGAHGOSUJBGJSFQK542MOWGHP2ADQQC","beginnings of a module for the text editor"],["ETM7ENJRMQ3PFPGIKTEDCOTFW7LBOLE2YGIJCWSZB67ENAZGEHZQC","some helpers"],["VO3GEIRWVBJSBMJJHHCIL3UJ3TVGGSX2QT74X276JY7JFGSC4LVAC","use app name in window title"],["LF7BWEG4DKQI7NMXMZC4LC2BE5PB42HK5PD6OYBNIDMAZBJASOKQC","group all editor globals"],["TGZAJUEFRK3NTCDMPIIG7U2TGLDHK4U3JDNFAYX7NHXTJYBYEZIAC","bring back a set of constants"],["BJ5X5O4ACBBJ56LRBBSTCW6IBQP4HAEOOOPNH3SKTA4F66YTOIDAC","let's prevent the text cursor from ever getting on a drawing"],["KJKKASHZCC5JD6G6PWQ4TA42NVI2CNTAZ667GA76H272DD6KCNRQC","reduce ambitions a bit: page up/down need not start screen from the middle of a line"],["2ENZW7TVCS47BWCA4AIEVGKGMT4Y2TSM5IJ7O5K2VSWNXIN3SG4QC","select text using mouse drag"],["SPNMXTYRSNPNQJNBTYDZSHYDZVZRPM4LI5QX7GR2TLTC6SPJX4DAC","have file API operate on state object"],["4AXV2HG4NMAHAWGWD35V5PXULNORCBEKY65UQT37XNYXCSB7TWEAC","all pending manual tests done!"],["BLWAYPKV3MLDZ4ALXLUJ25AIR6PCIL4RFYNRYLB26GFVC2KQBYBAC","extract a module"],["M6TH7VSZQGKDB7SFNN5K52WWAX5VTVNT6GOKNKTXPVZBT6NEYDOQC","rip out notion of Line_width"],["6PUNJS5BSLTYMYMN4JFD7YDEGVQLM5PGAT7PQIG5NIAKLTM5T4PQC","backspace"],["6DE7RBZ6RHNEICJ7EUMCTROK43LW4LYINULIF2QEQOKCXWLUYUXAC","move mouse_released events to Drawing"],["PX7DDEMOBGPVK3FXKK5XEPG24CJXZSVW67DLG2JZZ5E77NVEAA3AC","autosave slightly less aggressively"],["VIU2FBNVHG5FV5AJLVPMGEUO5HCLJEGZTRWNY2C5XC4AKMQZZKVAC","make sure to save right when quitting"],["5T2E3PDVSLMZSSIIQRNKIKQVV77XQTHP473OP7XBTTMSZHIQID5AC","couple of bugfixes to file-handling"],["ZUOL7X6VIPRCMEZURYGNHTDEIP3ZCHZW4PKVKBNXVZL5V4VOE5ZQC","move"],["TVCPXAAU4P3K5MFYINH2MWDK3KGTQ2GE74TUNERYOONG2G5EYKMQC","rename"],["3RGHOJ25MCTQ5CRQADFIVJ53QZWRSIQOFGXLFGKQ765QABJ5S54AC","DRY some code"],["4CTZOJPCTWYUSHLIZZJ2M5W7S4JZFZVT5MUU5XNSOIBS5L4UY5UQC","stop pretending globals are local"],["UH4YWHW5NDKNR7RS664UG4PRJNZIPNWAD5JWBEUB22JHOY2SWZKAC","button framework is at the app level"],["XX7G2FFJ4QCGQGD4REAW5QFHVYAKCFUPGZCK7L6DFGS5ISVBYBQQC","intermingle freehand line drawings with text"],["EFMLTMZG5TUEGLSYLVKOKDSTGVSVWSKOMS7CJWOUGK5LADSH4YTQC","bugfix: restrict strokes to the drawing they started in"],["537TQ2QNPKPG322I4OIMN5IY22S45Z42LEBBZ2IN5MVM355BEJTAC","some more logging"],["5MR22SGZE5YDU5CAIY53GNJDA6HSWBPYPD6M3FRQ5ZUMCSKTYJRAC","bugfix: enable resize when loading settings"],["NX3DDSCZM23ONUBXATHBM2DM3RL7YO7LDPXLI2UA6GQU2G3DKOTQC","fix a variable name"],["3QQZ7W4EJ7G4HQM5IYWXICMAHVRGERY4X6AOC6LOV5NSZ4OBICSAC","bring couple more globals back to the app level"],["OYXDYPGSJK2QICJ6RBA7357WT4FSNAWRUT77YLQHT3F3VYMWGNFQC","get rid of debug variables"],["AD34IX2ZSGYGU3LGY2IZOZNKD4HRQOYJVG5UWMWLXJZJSM62FFOAC","couple more tests"],["2FBLO5FHINYONP5ETPEL4GIPUXKVXKPUL4Q5EKU5K2GHGSL3ODBQC","adjust window size"],["VVXVV2D2F5Y6D6N5VVPUPK3N6GMDTG2YCYPQDYTYEKVKBYHRRYEAC","change data model; text can now have metadata"],["ELIVOJ4NG3XKL4X2D3WYUPAPPZPDT7QL6F55Y4ZZYNBX4WORU6ZAC","bugfix: zoom in/out hotkeys"],["EF6MFB46IJA3TMTGY6DNPFB46RETYX6L2JGX2P567T2XFY47MB3AC","assume we always have a filename"],["VG75U7IM2ZQTGM2QETDT6QQ4CSLQPB4APK436POAAQJWOMINPIJAC","bugfix: typing should delete highlighted text"],["MGOQ5XAVFTWZPBG2O5ZTGSEKU6BRJKQZLDV6CM4737VD2FAEB5JQC","start uppercasing globals"],["OTIBCAUJ3KDQJLVDN3A536DLZGNRYMGJLORZVR3WLCGXGO6UGO6AC","love2d scaffold"],["SVJZZDC3K6AKAXHGRNAZKRE2ZXEKJANNLG7LSSUZJARFBL5F7C4AC","snapshot - no, that's all wrong"],["YTSPVDZHEN5LLNMGIBUBLPWFWSFM3SOHBRGWYSDEVFKRTH24ARRQC","first successful pagedown test, first bug found by test"],["R5QXEHUIZLELJGGCZAE7ATNS3CLRJ7JFRENMGH4XXH24C5WABZDQC","somebody stop me"],["3QNOKBFMKBGXBVJIRHR2444JRRMBTABHE4674NR3DT67RRM2X6GAC","beginnings of a test harness"],["LNUHQOGHIOFGJXNGA3DZLYEASLYYDGLN2I3EDZY5ANASQAHCG3YQC","start passing in Editor_state explicitly"],["FS2ITYYHBLFT66YUC3ENPFYI2HOYHOVEPQIN7NQR6KF5MEK4NKZAC","record a known issue"],["OGUV4HSA7XGSQLUVWBAE3AE263Z7Z6G3BZOB4CN2AOYD2DEJMOZAC","remove some memory leaks from rendered fragments"],["ILOA5BYFTQKBSHLFMMZUVPQ2JXBFJD62ERQFBTDK2WSRXUN525VQC","separate data structure for each line's cache data"],["NEXUNNCF5PJC57XAMQGMSSYNI7MJ4ARWDY3HFGVYMGWG3MPHG7CQC","extract a function"],["M6JI7UJ7JO33L5A7VBTRZR7VQ7YRCFJSU2B7YGRVXZO3AET4ZSTQC","obsolete comment"],["7PZ4CQFVYUMSJKVCNM75VKK5JCUYU6ICHWPZXXIC3S63YJVFCP5QC","search: transparently handle drawings everywhere"],["YMH3YXXIVI7SIHH3PCWA7GQ374VVRLTQ74XTQEV22ZYUO5A4OGHQC","title"],["YGCT2D2ORMLTBHANLGHZV3EBGGHD7ZK55UAM7HF2AVSHDXAAKK5QC","start loading settings as applicable"],["RF5ALVNYB2FMU7LRRD5LMQC7P6OO4BX3NXIGWNZTQ2CD62RBRRFAC","allow the window to be resized"],["ERQKFTPVWZO4WJD2WRIV33JWTWZSF4HNTK2GD7QT5I5TIL3SOGKQC","extract method"],["CNCYMM6ABOXCRI2IP5A4T2OGBO5FQ7GWBXBP2OQYL4YET5BLJCGQC","make test initializations a little more obvious"],["TLOAPLBJPPBAROMWGXUK6JIFEIR222YAB4JOYCARGAYDIOZDXSBQC","add a license"],["PESSMQBJCOIA5PYNVKUG4D25VTFIG44QVCAOFRD4PKOJNW2AIHKAC","no, make sure to compute line width after screen dimensions"],["46ASCE5K5QRO6BZNJPW4CJZCRVVG76S3GENIBGNGB352CP3DLDCQC","first commandline arg: window dimensions"],["WOXIYUTL4NU7ACHQYXEXJDSXCRDLQ2X457KO6C7GEXFQZ43F3L7QC","bugfix: manage screen_top and cursor when resizing"],["PGZJ6NATSMW4XH64XEPE5Q2EEYCMAMQIIP2OZXPNJ527234QPKMQC","ensure Filename is writable when opened outside a terminal"],["W4UVZETRKOSWDPLAM5LGAPCQEJWIVFCXUJDVZQASEIKALYEU34KAC","2 regressions:"],["QCQHLMSTHTRNIKC5CJU3CAYMMWPTGITALRJNLFMGQWN2ZYMDSAWAC","always have a filename"],["4QQBMWLLIA42YP6FBFC445ABQH62RRJBL5KKILTERJALPOJCYK4QC","regression: typing uppercase letters in text"],["JVRL5TWLBTWMTHJDZSDN5XQDMEIIPVAZBKUP75HMO7JHURAYWG5QC","store device-independent coordinates inside drawings"],["DWZK32YDFQIUYR4LDUUFLOPJMUVJMFDP2RKW2L3QFAGUHAWPJU2AC","include CWD when saving filename"],["JRLBUB6LR2JIAKVQNKF3T4BDICUIJ3HEMRRHX56YP5M5SP7ZS3WAC","more intuitive point delete from polygons"],["RSZD5A7GI5MISRTDFFJ63VUSFUFF3R7SXA66J64CBHWHNEUBMICQC","forgot to add json.lua"],["73OCE2MCBJJZZMN2KYPJTBOUCKBZAOQ2QIAMTGCNOOJ2AJAXFT2AC","after much struggle, a brute-force undo"],["66X36NZNEHWWURKSZ6G3XSC4CKQ7NTR4HYGDJGLHAUELMUAQC34AC","a little more prose describing manual_tests"],["L5USRTY2TF4F63CJZQ24QJXI2TZ4JJO324EVFXJKFMFJF2VQRWJQC","inline"],["DJGC4ZEFQZAAKF3YWQKHMHAP2KANFVQ2H7KWAC4PU3HPHP6WLSOAC","simplify hysteresis logic"],["HFI2YR2CWHWTAIQMDM6HIHHBUKQ74WA2QXW72PSKZWKHSVFWLKSQC","rip out geometry commandline arg"],["H3KWPK3GXISOB25HP3USPDJLY4Q3MYDDD77PPQ7OGBVEYG23D7JAC","regression: dropping files on the window"],["YKRF5V3ZZQIQ3UGAFYTQT5PUQVHCP2VHFDX77EY2C3X543HUDYKQC","starting to load/save"],["M36DBSDECWQYCVIPWUYPZXSR547P76RBVYQ63B5KJGVTFWIXCSJQC","bit more polish to help screen"],["QCPXQ2E3USF3Z6R6WJ2JKHTRMPKA6QWXFKKRMLXA3MXABJEL543AC","add state arg to a few functions"],["D2GCFTTT2RNUBFB243YTA4F2H5ZXFTFHBSKHLZ2CX4JSKRZFTUUQC","clean up repl functionality"],["V7LATJC7BMSIZWVQKQXPS5ZYL24FDBMGPX54GV6FL2KNWIB5UTHQC","bugfix: resize"],["IZZVOCLB7KB4ZNQ35OL466MHWOK3XZMOS7ZPFLHUFQ47LJLQQQ3QC","confirm that we have access to all of the love API"],["5FW7YOFTLKHRND6IOR4HG4X3C5BO2WV5KTEUW3PPKCRU5L5GXKXQC","highlight selection while dragging"],["YT5P6TO64XSMCZGTT4SVNFOWUN5ECNXTWCMFXN3YCDZUNH4H3IFAC","bugfix: save previous file when dropping a new one on"],["MUJTM6REGQAK3LZTIFWGJRXE2UPCM4HSLXQYSF5ITLXLS6JCVPMQC","bring back a level of wrapping"],["AJB4LFRBMIRBEDWJ3OW7GQIMD2BZBVQ62GH4TE2FISWZKSAHRF4QC","try to maintain a reasonable line width"],["4KC7I3E2DIKLIP7LQRKB5WFA2Z5XZXAU46RFHNFQU5BVEJPDX6UQC","make colors easier to edit"],["RT6EV6OPUYCXYZOX2PHFXJ7KT77KHNEVINEGQXIQLHQVKPGTN6VQC","delegate update events to drawings"],["VXORMHME4X64HL6AC7BVYMSYEAYASG6RENGUZ7PEIZ4YQJ7ZHBIQC","delete experimental REPL"],["WQOSZSUESLH4YRMW3PIWGSEC7RS243324PBROJP2KPRFJ3NFSEZQC","warn on unused commandline args"],["AVQ5MC5DWNLI6LUUIPGBLGP4LKRPGWBY4THNY25OBT2FAVHC6MCAC","finish uppercasing all globals"],["KCIM5UTVV4KIL7SNRZFOW6FUQHGWAPOGQO4QTVNIWWBWMVG6GYNQC","revert: back to freehand"],["R6GUSTBY5ZHR7E46DSIDQDNZDJI6QMZQDC7RPQMQWLGWQKXU6HVQC","default font size and line-height"],["3TTAYXPPKMTFPP6HO4OGWIBHAKJHIHPDW4T732SBBCFSCM62HLGAC","cleanup"],["SDRXK4X5R6KBAFZTFWKTC7375HVVVPSTCDJVAYWSNUSHSKD242GQC","move"],["MNWHXPBL23TOI45LPF7ZECXSURCD2TRLM2EOFNBKFNHIWWKDQWCQC","more lightweight; select just the stroke at the mouse"],["7EQLPB3O4DPUWGILY4P5D32SSIKL63QWWU5XRL2HISGNJXFWD2SAC","bugfix: don't delete selection when moving cursor"],["GQSGEYSMUTENRDUO5TXRM3KD6VRPUC7YD44RPLNCDTQPB6SOCUGQC","."],["XNFTJHC4QSHNSIWNN7K6QZEZ37GTQYKHS4EPNSVPQCUSWREROGIQC","split keyboard handling between Text and Drawing"],["KVHUFUFVOSY6GB4XI2QK4T4WCLIYOV3NZR67TX6AQHAQDWJMEOBQC","reorg"],["BYG5CEMVXANDTBI2ORNVMEY6K3EBRIHZHS4QBK27VONJC5537COQC","support for naming points"],["CIQN2MDEMWAASJAHOHMUZTI5PF4JV5SZSOBYYDCIIFYO2VHWULKAC","bugfix: typing a capital letter deletes selection"],["2Y5GGGJ4YNCFSRTQRMW53RMS4EAAL3FPHA5KLOIM53JM3JHLFGWQC","correct a mis-named threshold"],["Z4KNS42NJZTQKUQZ7B5NYU2U4VOCUQCBFT2D7423MAXKF7NQ5ZJAC","to open a file without a terminal, drag it on!"],["IFGAJAF7UWM236QV4NWP2C67TJPQGXNBC2RTZCOWPJUJYYC2MMXAC","add a level of indirection to vertices of shapes"],["LUNH47XXUUITDLE6NBI3J7GJQWQ45OQAGXY2HJI4HRPOR2GUULPAC","make text and drawings the same width"],["6LJZN727CRPYR34LV75CQF55YZI3E7MGESYZSFSYAE73SNEZE3FAC","handle chords"],["AVTNUQYRBW7IX2YQ3KDLVQ23RGW3BAKTAE7P73ASBYNKOHMQMH5AC","basic test-enabled framework"],["T4FRZSYLUWDA4K3URU4MI33EGD4XWSM7FPSIRNMAEYQAFEDFGPZAC","delete an ancient, unused file"],["2KRK3OBVPHQIDGCH2FBTP2AXKPEXS3OEPLBKU7UWCLKQA4MANGSAC","don't rely on defaults"],["MHOUX5JFGBFYMOULX3NZA2JXH6PF2227DT54EEXLBUZQFO7NDI2AC","experiment: turn off JIT"],["FYS7TCDWKNRNOJSGRD2JMU4B2LHX5S63ZISM7YF7KZYEYLVCIKIAC","bugfix"],["LXTTOB33N2HCUZFIUDRQGGBVHK2HODRG4NBLH6RXRQZDCHF27BSAC","extract a couple of files"],["J5IEBT64CTGVDGSIBE2MTXBTGOMFSSF62SVCFZL2SDDLE745MGDAC","enforce press/release state only processed once"],["H2DPLWMVRFYTO2CQTG54FMT2LF3B6UKLXH32CUA22DNQJVP5XBNQC","snapshot: wrapping long lines at word boundaries"],["OAHNWDYG3V6EJQXJ333FD7M44E3VBZUWSKZ45SSFXVK5Q2HJUI4AC","."],["4YDBYBA4H77LGAJHWRKVQSUGSYFNXKINO3VHFSQLU2XE36EIGO5AC","clean up memory leak experiments"],["UHB4GARJI5AB5UCDCZRFSCJNXGJSLU5DYGUGX5ITYEXI7Q43Z4CAC","left/right margin -> left/right coordinates"],["PP2IIHL6EK4HBFFSYAQNV35BKIK6D4EL2JQOY7NZVJX2DXCLSMGAC","stop putting button state in a global"],["GUOQRUL75BMNH7UOZIQ7EYXKK2TMQAIU6HAKMZ75TZYB7NWSZAVQC","Merge lines.love"],["XSLCFVFHBXYPJDGOFULVB7UAWQY5CRDY4QKKHDXSZTSVLCHDL54QC","."],["Z4XRNDTRTGSZHNB65WNHOVUBFW4QWQABLVSK4RM3QJHGK33DMRJAC","find text"],["4VKEE43Z7MUPNIAOCK36INVBNHRTSWRRN37TIKRPXPH3DRKGHHAQC","bugfix"],["MD3W5IRAC6UQALQE4LJC52VQNDO3I3HXF3XE2XHDABXBYJBUVAXQC","new fork: rip out drawing support"],["HPVT467W763S6XQWS5Q47BAK4GMVY57LDXS7LSTFM23Y5XGKZMMQC","initialize contains test state"],["2C7CTIQYDDYVQJNKX2OSHZ6VMAMPOGNUVTSFAUV7HQCPMZR2YRUAC","make space for multiple kinds of width"],["J2SVGR2EQEROXDDMYZOCELD2VDYQALGZYRSZ4WGMTACAGMRPJ7UAC","experiment: blinking cursor"],["CE4LZV4TNXJT54CVGM3QANCBP42TMLMZWF2DBSMUYKAHILXIZEMQC","drop last couple of manual tests"],["5XQ4Y7NU63X2WW4ZR4P46LX5GEOTE7JH3AUMTDQW5VZ53GELNP2QC","reorg manual tests doc"],["IYW7X3WLOPYLSNO5IQNSULUNO4XFEM24DJ2VB5HPBUKWUYFPRCGQC","left/right cursor movement, deleting characters"],["PFT5Y2ZYGQA6XXOZ5HH75WVUGA4B3KTDRHSFOZRAUKTPSFOPMNRAC","move"],["HYEAFRZ2UEKDYTAE2GDQLHEJBPQASP2NDLMXB7F6MTVK2BKOXKEAC","split mouse_pressed events between Text and Drawing"],["3HDWCPDIQ2R7N63GQIABVE5L63U42CLKNLVJQFKBOZH4BMJQA5XAC","bugfix: include shift keys in modifier_down"],["G6OYAYHUSMSPKLRW52LQDAF4NBHFPWY3GZAHZZDLJY2ZL6NLTNEQC","paste in text with M-v"],["5STHSG4UB2SC4EZWOQHPQM43BLC4X2EJTNSSYRF35XEYVMTOID5AC","remove some duplication"],["E5FYDACSQNKJG4USM52I6C4KTN3U4Z47C4TK4QYC6RF2FFCZCYCAC","a likely source of issues"],["D4FEFHQCSILZFQ5VLWNXAIRZNUMCDNGJSM4UJ6T6FDMMIWYRYILQC","flesh out 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| DELETED","from":{"change":10,"pos":30},"to":{"change":10,"start":2774,"end":2775},"introduced_by":10},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":10,"pos":2775},"to":{"change":10,"start":43921,"end":43955},"introduced_by":10},{"previous":"","flag":"DELETED","from":{"change":10,"pos":43955},"to":{"change":10,"start":2775,"end":2790},"introduced_by":10},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":10,"pos":2775},"to":{"change":10,"start":2775,"end":2790},"introduced_by":10},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":10,"pos":2790},"to":{"change":10,"start":43956,"end":43977},"introduced_by":10}],"inode":{"change":10,"pos":1}},"ins_contents":[{"Add":"AB_padding = 20 -- space in pixels between A side and B side"}],"del_contents":[{"Del":"\n"},{"Del":"require 'search'\nrequire 'select'\n"},{"Del":"require 'undo'\n"},{"Del":"require 'text_tests'\n"}]}},{"FileAdd":{"meta":{"basename":"source_undo.lua","metadata":0},"context":[{"change":10,"pos":2}],"contents":[{"Add":"-- undo/redo by managing the sequence of events in the current session"},{"Add":"-- based on https://github.com/akkartik/mu1/blob/master/edit/012-editor-undo.mu"},{"Add":""},{"Add":"-- Incredibly inefficient; we make a copy of lines on every single keystroke."},{"Add":"-- The hope here is that we're either editing small files or just reading large files."},{"Add":"-- TODO: highlight stuff inserted by any undo/redo operation"},{"Add":"-- TODO: coalesce multiple similar operations"},{"Add":""},{"Add":"function record_undo_event(State, data)"},{"Add":" State.history[State.next_history] = data"},{"Add":" State.next_history = State.next_history+1"},{"Add":" for i=State.next_history,#State.history do"},{"Add":" State.history[i] = nil"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function undo_event(State)"},{"Add":" if State.next_history > 1 then"},{"Add":"--? print('moving to history', State.next_history-1)"},{"Add":" State.next_history = State.next_history-1"},{"Add":" local result = State.history[State.next_history]"},{"Add":" return result"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function redo_event(State)"},{"Add":" if State.next_history <= #State.history then"},{"Add":"--? print('restoring history', State.next_history+1)"},{"Add":" local result = State.history[State.next_history]"},{"Add":" State.next_history = State.next_history+1"},{"Add":" return result"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"-- Copy all relevant global state."},{"Add":"-- Make copies of objects; the rest of the app may mutate them in place, but undo requires immutable histories."},{"Add":"function snapshot(State, s,e)"},{"Add":" -- Snapshot everything by default, but subset if requested."},{"Add":" assert(s)"},{"Add":" if e == nil then"},{"Add":" e = s"},{"Add":" end"},{"Add":" assert(#State.lines > 0)"},{"Add":" if s < 1 then s = 1 end"},{"Add":" if s > #State.lines then s = #State.lines end"},{"Add":" if e < 1 then e = 1 end"},{"Add":" if e > #State.lines then e = #State.lines end"},{"Add":" -- compare with App.initialize_globals"},{"Add":" local event = {"},{"Add":" screen_top=deepcopy(State.screen_top1),"},{"Add":" selection=deepcopy(State.selection1),"},{"Add":" cursor=deepcopy(State.cursor1),"},{"Add":" lines={},"},{"Add":" start_line=s,"},{"Add":" end_line=e,"},{"Add":" -- no filename; undo history is cleared when filename changes"},{"Add":" }"},{"Add":" -- deep copy lines without cached stuff like text fragments"},{"Add":" for i=s,e do"},{"Add":" local line = State.lines[i]"},{"Add":" table.insert(event.lines, {data=line.data, dataB=line.dataB})"},{"Add":" end"},{"Add":" return event"},{"Add":"end"},{"Add":""},{"Add":"function patch(lines, from, to)"},{"Add":"--? if #from.lines == 1 and #to.lines == 1 then"},{"Add":"--? assert(from.start_line == from.end_line)"},{"Add":"--? assert(to.start_line == to.end_line)"},{"Add":"--? assert(from.start_line == to.start_line)"},{"Add":"--? lines[from.start_line] = to.lines[1]"},{"Add":"--? return"},{"Add":"--? end"},{"Add":" assert(from.start_line == to.start_line)"},{"Add":" for i=from.end_line,from.start_line,-1 do"},{"Add":" table.remove(lines, i)"},{"Add":" end"},{"Add":" assert(#to.lines == to.end_line-to.start_line+1)"},{"Add":" for i=1,#to.lines do"},{"Add":" table.insert(lines, to.start_line+i-1, to.lines[i])"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function patch_placeholders(line_cache, from, to)"},{"Add":" assert(from.start_line == to.start_line)"},{"Add":" for i=from.end_line,from.start_line,-1 do"},{"Add":" table.remove(line_cache, i)"},{"Add":" end"},{"Add":" assert(#to.lines == to.end_line-to.start_line+1)"},{"Add":" for i=1,#to.lines do"},{"Add":" table.insert(line_cache, to.start_line+i-1, {})"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"-- https://stackoverflow.com/questions/640642/how-do-you-copy-a-lua-table-by-value/26367080#26367080"},{"Add":"function deepcopy(obj, seen)"},{"Add":" if type(obj) ~= 'table' then return obj end"},{"Add":" if seen and seen[obj] then return seen[obj] end"},{"Add":" local s = seen or {}"},{"Add":" local result = setmetatable({}, getmetatable(obj))"},{"Add":" s[obj] = result"},{"Add":" for k,v in pairs(obj) do"},{"Add":" result[deepcopy(k, s)] = deepcopy(v, s)"},{"Add":" end"},{"Add":" return result"},{"Add":"end"},{"Add":""},{"Add":"function minmax(a, b)"},{"Add":" return math.min(a,b), math.max(a,b)"},{"Add":"end"}]}},{"FileAdd":{"meta":{"basename":"source_text_tests.lua","metadata":0},"context":[{"change":10,"pos":2}],"contents":[{"Add":"-- major tests for text editing flows"},{"Add":""},{"Add":"function test_initial_state()"},{"Add":" io.write('\\ntest_initial_state')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" edit.draw(Editor_state)"},{"Add":" check_eq(#Editor_state.lines, 1, 'F - test_initial_state/#lines')"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_initial_state/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 1, 'F - test_initial_state/cursor:pos')"},{"Add":" check_eq(Editor_state.screen_top1.line, 1, 'F - test_initial_state/screen_top:line')"},{"Add":" check_eq(Editor_state.screen_top1.pos, 1, 'F - test_initial_state/screen_top:pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_backspace_from_start_of_final_line()"},{"Add":" io.write('\\ntest_backspace_from_start_of_final_line')"},{"Add":" -- display final line of text with cursor at start of it"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def'}"},{"Add":" Editor_state.screen_top1 = {line=2, pos=1}"},{"Add":" Editor_state.cursor1 = {line=2, pos=1}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" -- backspace scrolls up"},{"Add":" edit.run_after_keychord(Editor_state, 'backspace')"},{"Add":" check_eq(#Editor_state.lines, 1, 'F - test_backspace_from_start_of_final_line/#lines')"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_backspace_from_start_of_final_line/cursor')"},{"Add":" check_eq(Editor_state.screen_top1.line, 1, 'F - test_backspace_from_start_of_final_line/screen_top')"},{"Add":"end"},{"Add":""},{"Add":"function test_insert_first_character()"},{"Add":" io.write('\\ntest_insert_first_character')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_textinput(Editor_state, 'a')"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'a', 'F - test_insert_first_character/screen:1')"},{"Add":"end"},{"Add":""},{"Add":"function test_press_ctrl()"},{"Add":" io.write('\\ntest_press_ctrl')"},{"Add":" -- press ctrl while the cursor is on text"},{"Add":" App.screen.init{width=50, height=80}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{''}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.run_after_keychord(Editor_state, 'C-m')"},{"Add":"end"},{"Add":""},{"Add":"function test_move_left()"},{"Add":" io.write('\\ntest_move_left')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'a'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=2}"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_keychord(Editor_state, 'left')"},{"Add":" check_eq(Editor_state.cursor1.pos, 1, 'F - test_move_left')"},{"Add":"end"},{"Add":""},{"Add":"function test_move_right()"},{"Add":" io.write('\\ntest_move_right')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'a'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=1}"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_keychord(Editor_state, 'right')"},{"Add":" check_eq(Editor_state.cursor1.pos, 2, 'F - test_move_right')"},{"Add":"end"},{"Add":""},{"Add":"function test_move_left_to_previous_line()"},{"Add":" io.write('\\ntest_move_left_to_previous_line')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=2, pos=1}"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_keychord(Editor_state, 'left')"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_move_left_to_previous_line/line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 4, 'F - test_move_left_to_previous_line/pos') -- past end of line"},{"Add":"end"},{"Add":""},{"Add":"function test_move_right_to_next_line()"},{"Add":" io.write('\\ntest_move_right_to_next_line')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=4} -- past end of line"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_keychord(Editor_state, 'right')"},{"Add":" check_eq(Editor_state.cursor1.line, 2, 'F - test_move_right_to_next_line/line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 1, 'F - test_move_right_to_next_line/pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_move_to_start_of_word()"},{"Add":" io.write('\\ntest_move_to_start_of_word')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=3}"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_keychord(Editor_state, 'M-left')"},{"Add":" check_eq(Editor_state.cursor1.pos, 1, 'F - test_move_to_start_of_word')"},{"Add":"end"},{"Add":""},{"Add":"function test_move_to_start_of_previous_word()"},{"Add":" io.write('\\ntest_move_to_start_of_previous_word')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc def'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=4} -- at the space between words"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_keychord(Editor_state, 'M-left')"},{"Add":" check_eq(Editor_state.cursor1.pos, 1, 'F - test_move_to_start_of_previous_word')"},{"Add":"end"},{"Add":""},{"Add":"function test_skip_to_previous_word()"},{"Add":" io.write('\\ntest_skip_to_previous_word')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc def'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=5} -- at the start of second word"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_keychord(Editor_state, 'M-left')"},{"Add":" check_eq(Editor_state.cursor1.pos, 1, 'F - test_skip_to_previous_word')"},{"Add":"end"},{"Add":""},{"Add":"function test_skip_past_tab_to_previous_word()"},{"Add":" io.write('\\ntest_skip_past_tab_to_previous_word')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc def\\tghi'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=10} -- within third word"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_keychord(Editor_state, 'M-left')"},{"Add":" check_eq(Editor_state.cursor1.pos, 9, 'F - test_skip_past_tab_to_previous_word')"},{"Add":"end"},{"Add":""},{"Add":"function test_skip_multiple_spaces_to_previous_word()"},{"Add":" io.write('\\ntest_skip_multiple_spaces_to_previous_word')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc def'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=6} -- at the start of second word"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_keychord(Editor_state, 'M-left')"},{"Add":" check_eq(Editor_state.cursor1.pos, 1, 'F - test_skip_multiple_spaces_to_previous_word')"},{"Add":"end"},{"Add":""},{"Add":"function test_move_to_start_of_word_on_previous_line()"},{"Add":" io.write('\\ntest_move_to_start_of_word_on_previous_line')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc def', 'ghi'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=2, pos=1}"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_keychord(Editor_state, 'M-left')"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_move_to_start_of_word_on_previous_line/line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 5, 'F - test_move_to_start_of_word_on_previous_line/pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_move_past_end_of_word()"},{"Add":" io.write('\\ntest_move_past_end_of_word')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc def'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=1}"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_keychord(Editor_state, 'M-right')"},{"Add":" check_eq(Editor_state.cursor1.pos, 4, 'F - test_move_past_end_of_word')"},{"Add":"end"},{"Add":""},{"Add":"function test_skip_to_next_word()"},{"Add":" io.write('\\ntest_skip_to_next_word')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc def'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=4} -- at the space between words"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_keychord(Editor_state, 'M-right')"},{"Add":" check_eq(Editor_state.cursor1.pos, 8, 'F - test_skip_to_next_word')"},{"Add":"end"},{"Add":""},{"Add":"function test_skip_past_tab_to_next_word()"},{"Add":" io.write('\\ntest_skip_past_tab_to_next_word')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc\\tdef'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=1} -- at the space between words"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_keychord(Editor_state, 'M-right')"},{"Add":" check_eq(Editor_state.cursor1.pos, 4, 'F - test_skip_past_tab_to_next_word')"},{"Add":"end"},{"Add":""},{"Add":"function test_skip_multiple_spaces_to_next_word()"},{"Add":" io.write('\\ntest_skip_multiple_spaces_to_next_word')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc def'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=4} -- at the start of second word"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_keychord(Editor_state, 'M-right')"},{"Add":" check_eq(Editor_state.cursor1.pos, 9, 'F - test_skip_multiple_spaces_to_next_word')"},{"Add":"end"},{"Add":""},{"Add":"function test_move_past_end_of_word_on_next_line()"},{"Add":" io.write('\\ntest_move_past_end_of_word_on_next_line')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc def', 'ghi'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=8}"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_keychord(Editor_state, 'M-right')"},{"Add":" check_eq(Editor_state.cursor1.line, 2, 'F - test_move_past_end_of_word_on_next_line/line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 4, 'F - test_move_past_end_of_word_on_next_line/pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_click_with_mouse()"},{"Add":" io.write('\\ntest_click_with_mouse')"},{"Add":" -- display two lines with cursor on one of them"},{"Add":" App.screen.init{width=50, height=80}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=2, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" -- click on the other line"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_mouse_click(Editor_state, Editor_state.left+8,Editor_state.top+5, 1)"},{"Add":" -- cursor moves"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_click_with_mouse/cursor:line')"},{"Add":"end"},{"Add":""},{"Add":"function test_click_with_mouse_to_left_of_line()"},{"Add":" io.write('\\ntest_click_with_mouse_to_left_of_line')"},{"Add":" -- display a line with the cursor in the middle"},{"Add":" App.screen.init{width=50, height=80}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=3}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" -- click to the left of the line"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_mouse_click(Editor_state, Editor_state.left-4,Editor_state.top+5, 1)"},{"Add":" -- cursor moves to start of line"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_click_with_mouse_to_left_of_line/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 1, 'F - test_click_with_mouse_to_left_of_line/cursor:pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_click_with_mouse_takes_margins_into_account()"},{"Add":" io.write('\\ntest_click_with_mouse_takes_margins_into_account')"},{"Add":" -- display two lines with cursor on one of them"},{"Add":" App.screen.init{width=100, height=80}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.left = 50 -- occupy only right side of screen"},{"Add":" Editor_state.lines = load_array{'abc', 'def'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=2, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" -- click on the other line"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_mouse_click(Editor_state, Editor_state.left+8,Editor_state.top+5, 1)"},{"Add":" -- cursor moves"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_click_with_mouse_takes_margins_into_account/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 2, 'F - test_click_with_mouse_takes_margins_into_account/cursor:pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_click_with_mouse_on_empty_line()"},{"Add":" io.write('\\ntest_click_with_mouse_on_empty_line')"},{"Add":" -- display two lines with the first one empty"},{"Add":" App.screen.init{width=50, height=80}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'', 'def'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=2, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" -- click on the empty line"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_mouse_click(Editor_state, Editor_state.left+8,Editor_state.top+5, 1)"},{"Add":" -- cursor moves"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_click_with_mouse_on_empty_line/cursor')"},{"Add":"end"},{"Add":""},{"Add":"function test_draw_text()"},{"Add":" io.write('\\ntest_draw_text')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'ghi'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_draw_text/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_draw_text/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_draw_text/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_draw_wrapping_text()"},{"Add":" io.write('\\ntest_draw_wrapping_text')"},{"Add":" App.screen.init{width=50, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'defgh', 'xyz'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_draw_wrapping_text/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'de', 'F - test_draw_wrapping_text/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'fgh', 'F - test_draw_wrapping_text/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_draw_word_wrapping_text()"},{"Add":" io.write('\\ntest_draw_word_wrapping_text')"},{"Add":" App.screen.init{width=60, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc def ghi', 'jkl'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc ', 'F - test_draw_word_wrapping_text/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def ', 'F - test_draw_word_wrapping_text/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_draw_word_wrapping_text/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_click_with_mouse_on_wrapping_line()"},{"Add":" io.write('\\ntest_click_with_mouse_on_wrapping_line')"},{"Add":" -- display two lines with cursor on one of them"},{"Add":" App.screen.init{width=50, height=80}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc def ghi jkl mno pqr stu'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=20}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" -- click on the other line"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_mouse_click(Editor_state, Editor_state.left+8,Editor_state.top+5, 1)"},{"Add":" -- cursor moves"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_click_with_mouse_on_wrapping_line/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 2, 'F - test_click_with_mouse_on_wrapping_line/cursor:pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_click_with_mouse_on_wrapping_line_takes_margins_into_account()"},{"Add":" io.write('\\ntest_click_with_mouse_on_wrapping_line_takes_margins_into_account')"},{"Add":" -- display two lines with cursor on one of them"},{"Add":" App.screen.init{width=100, height=80}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.left = 50 -- occupy only right side of screen"},{"Add":" Editor_state.lines = load_array{'abc def ghi jkl mno pqr stu'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=20}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" -- click on the other line"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_mouse_click(Editor_state, Editor_state.left+8,Editor_state.top+5, 1)"},{"Add":" -- cursor moves"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_click_with_mouse_on_wrapping_line_takes_margins_into_account/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 2, 'F - test_click_with_mouse_on_wrapping_line_takes_margins_into_account/cursor:pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_draw_text_wrapping_within_word()"},{"Add":" -- arrange a screen line that needs to be split within a word"},{"Add":" io.write('\\ntest_draw_text_wrapping_within_word')"},{"Add":" App.screen.init{width=60, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abcd e fghijk', 'xyz'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'abcd ', 'F - test_draw_text_wrapping_within_word/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'e fgh', 'F - test_draw_text_wrapping_within_word/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ijk', 'F - test_draw_text_wrapping_within_word/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_draw_wrapping_text_containing_non_ascii()"},{"Add":" -- draw a long line containing non-ASCII"},{"Add":" io.write('\\ntest_draw_wrapping_text_containing_non_ascii')"},{"Add":" App.screen.init{width=60, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'madam I’m adam', 'xyz'} -- notice the non-ASCII apostrophe"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'mad', 'F - test_draw_wrapping_text_containing_non_ascii/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'am I', 'F - test_draw_wrapping_text_containing_non_ascii/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, '’m a', 'F - test_draw_wrapping_text_containing_non_ascii/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_click_on_wrapping_line()"},{"Add":" io.write('\\ntest_click_on_wrapping_line')"},{"Add":" -- display a wrapping line"},{"Add":" App.screen.init{width=75, height=80}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" -- 12345678901234"},{"Add":" Editor_state.lines = load_array{\"madam I'm adam\"}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'madam ', 'F - test_click_on_wrapping_line/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, \"I'm ad\", 'F - test_click_on_wrapping_line/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" -- click past end of second screen line"},{"Add":" edit.run_after_mouse_click(Editor_state, App.screen.width-2,y-2, 1)"},{"Add":" -- cursor moves to end of screen line"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_click_on_wrapping_line/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 12, 'F - test_click_on_wrapping_line/cursor:pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_click_on_wrapping_line_rendered_from_partway_at_top_of_screen()"},{"Add":" io.write('\\ntest_click_on_wrapping_line_rendered_from_partway_at_top_of_screen')"},{"Add":" -- display a wrapping line from its second screen line"},{"Add":" App.screen.init{width=75, height=80}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" -- 12345678901234"},{"Add":" Editor_state.lines = load_array{\"madam I'm adam\"}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=8}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=7}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, \"I'm ad\", 'F - test_click_on_wrapping_line_rendered_from_partway_at_top_of_screen/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" -- click past end of second screen line"},{"Add":" edit.run_after_mouse_click(Editor_state, App.screen.width-2,y-2, 1)"},{"Add":" -- cursor moves to end of screen line"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_click_on_wrapping_line_rendered_from_partway_at_top_of_screen/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 12, 'F - test_click_on_wrapping_line_rendered_from_partway_at_top_of_screen/cursor:pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_click_past_end_of_wrapping_line()"},{"Add":" io.write('\\ntest_click_past_end_of_wrapping_line')"},{"Add":" -- display a wrapping line"},{"Add":" App.screen.init{width=75, height=80}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" -- 12345678901234"},{"Add":" Editor_state.lines = load_array{\"madam I'm adam\"}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'madam ', 'F - test_click_past_end_of_wrapping_line/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, \"I'm ad\", 'F - test_click_past_end_of_wrapping_line/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'am', 'F - test_click_past_end_of_wrapping_line/baseline/screen:3')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" -- click past the end of it"},{"Add":" edit.run_after_mouse_click(Editor_state, App.screen.width-2,y-2, 1)"},{"Add":" -- cursor moves to end of line"},{"Add":" check_eq(Editor_state.cursor1.pos, 15, 'F - test_click_past_end_of_wrapping_line/cursor') -- one more than the number of UTF-8 code-points"},{"Add":"end"},{"Add":""},{"Add":"function test_click_past_end_of_wrapping_line_containing_non_ascii()"},{"Add":" io.write('\\ntest_click_past_end_of_wrapping_line_containing_non_ascii')"},{"Add":" -- display a wrapping line containing non-ASCII"},{"Add":" App.screen.init{width=75, height=80}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" -- 12345678901234"},{"Add":" Editor_state.lines = load_array{'madam I’m adam'} -- notice the non-ASCII apostrophe"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'madam ', 'F - test_click_past_end_of_wrapping_line_containing_non_ascii/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'I’m ad', 'F - test_click_past_end_of_wrapping_line_containing_non_ascii/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'am', 'F - test_click_past_end_of_wrapping_line_containing_non_ascii/baseline/screen:3')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" -- click past the end of it"},{"Add":" edit.run_after_mouse_click(Editor_state, App.screen.width-2,y-2, 1)"},{"Add":" -- cursor moves to end of line"},{"Add":" check_eq(Editor_state.cursor1.pos, 15, 'F - test_click_past_end_of_wrapping_line_containing_non_ascii/cursor') -- one more than the number of UTF-8 code-points"},{"Add":"end"},{"Add":""},{"Add":"function test_click_past_end_of_word_wrapping_line()"},{"Add":" io.write('\\ntest_click_past_end_of_word_wrapping_line')"},{"Add":" -- display a long line wrapping at a word boundary on a screen of more realistic length"},{"Add":" App.screen.init{width=160, height=80}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" -- 0 1 2"},{"Add":" -- 123456789012345678901"},{"Add":" Editor_state.lines = load_array{'the quick brown fox jumped over the lazy dog'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'the quick brown fox ', 'F - test_click_past_end_of_word_wrapping_line/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" -- click past the end of the screen line"},{"Add":" edit.run_after_mouse_click(Editor_state, App.screen.width-2,y-2, 1)"},{"Add":" -- cursor moves to end of screen line"},{"Add":" check_eq(Editor_state.cursor1.pos, 20, 'F - test_click_past_end_of_word_wrapping_line/cursor')"},{"Add":"end"},{"Add":""},{"Add":"function test_edit_wrapping_text()"},{"Add":" io.write('\\ntest_edit_wrapping_text')"},{"Add":" App.screen.init{width=50, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'xyz'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=2, pos=4}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_textinput(Editor_state, 'g')"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_edit_wrapping_text/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'de', 'F - test_edit_wrapping_text/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'fg', 'F - test_edit_wrapping_text/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_insert_newline()"},{"Add":" io.write('\\ntest_insert_newline')"},{"Add":" -- display a few lines"},{"Add":" App.screen.init{width=Editor_state.left+30, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=2}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_insert_newline/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_insert_newline/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_insert_newline/baseline/screen:3')"},{"Add":" -- hitting the enter key splits the line"},{"Add":" edit.run_after_keychord(Editor_state, 'return')"},{"Add":" check_eq(Editor_state.screen_top1.line, 1, 'F - test_insert_newline/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 2, 'F - test_insert_newline/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 1, 'F - test_insert_newline/cursor:pos')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'a', 'F - test_insert_newline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'bc', 'F - test_insert_newline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_insert_newline/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_insert_newline_at_start_of_line()"},{"Add":" io.write('\\ntest_insert_newline_at_start_of_line')"},{"Add":" -- display a line"},{"Add":" App.screen.init{width=Editor_state.left+30, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" -- hitting the enter key splits the line"},{"Add":" edit.run_after_keychord(Editor_state, 'return')"},{"Add":" check_eq(Editor_state.cursor1.line, 2, 'F - test_insert_newline_at_start_of_line/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 1, 'F - test_insert_newline_at_start_of_line/cursor:pos')"},{"Add":" check_eq(Editor_state.lines[1].data, '', 'F - test_insert_newline_at_start_of_line/data:1')"},{"Add":" check_eq(Editor_state.lines[2].data, 'abc', 'F - test_insert_newline_at_start_of_line/data:2')"},{"Add":"end"},{"Add":""},{"Add":"function test_insert_from_clipboard()"},{"Add":" io.write('\\ntest_insert_from_clipboard')"},{"Add":" -- display a few lines"},{"Add":" App.screen.init{width=Editor_state.left+30, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=2}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_insert_from_clipboard/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_insert_from_clipboard/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_insert_from_clipboard/baseline/screen:3')"},{"Add":" -- paste some text including a newline, check that new line is created"},{"Add":" App.clipboard = 'xy\\nz'"},{"Add":" edit.run_after_keychord(Editor_state, 'C-v')"},{"Add":" check_eq(Editor_state.screen_top1.line, 1, 'F - test_insert_from_clipboard/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 2, 'F - test_insert_from_clipboard/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 2, 'F - test_insert_from_clipboard/cursor:pos')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'axy', 'F - test_insert_from_clipboard/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'zbc', 'F - test_insert_from_clipboard/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_insert_from_clipboard/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_move_cursor_using_mouse()"},{"Add":" io.write('\\ntest_move_cursor_using_mouse')"},{"Add":" App.screen.init{width=50, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'xyz'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state) -- populate line_cache.starty for each line Editor_state.line_cache"},{"Add":" edit.run_after_mouse_press(Editor_state, Editor_state.left+8,Editor_state.top+5, 1)"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_move_cursor_using_mouse/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 2, 'F - test_move_cursor_using_mouse/cursor:pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_pagedown()"},{"Add":" io.write('\\ntest_pagedown')"},{"Add":" App.screen.init{width=120, height=45}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'ghi'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" -- initially the first two lines are displayed"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_pagedown/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_pagedown/baseline/screen:2')"},{"Add":" -- after pagedown the bottom line becomes the top"},{"Add":" edit.run_after_keychord(Editor_state, 'pagedown')"},{"Add":" check_eq(Editor_state.screen_top1.line, 2, 'F - test_pagedown/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 2, 'F - test_pagedown/cursor')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'def', 'F - test_pagedown/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_pagedown/screen:2')"},{"Add":"end"},{"Add":""},{"Add":"function test_pagedown_can_start_from_middle_of_long_wrapping_line()"},{"Add":" io.write('\\ntest_pagedown_can_start_from_middle_of_long_wrapping_line')"},{"Add":" -- draw a few lines starting from a very long wrapping line"},{"Add":" App.screen.init{width=Editor_state.left+30, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc def ghi jkl mno pqr stu vwx yza bcd efg hij', 'XYZ'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=2}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc ', 'F - test_pagedown_can_start_from_middle_of_long_wrapping_line/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def ', 'F - test_pagedown_can_start_from_middle_of_long_wrapping_line/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi ', 'F - test_pagedown_can_start_from_middle_of_long_wrapping_line/baseline/screen:3')"},{"Add":" -- after pagedown we scroll down the very long wrapping line"},{"Add":" edit.run_after_keychord(Editor_state, 'pagedown')"},{"Add":" check_eq(Editor_state.screen_top1.line, 1, 'F - test_pagedown_can_start_from_middle_of_long_wrapping_line/screen_top:line')"},{"Add":" check_eq(Editor_state.screen_top1.pos, 9, 'F - test_pagedown_can_start_from_middle_of_long_wrapping_line/screen_top:pos')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'ghi ', 'F - test_pagedown_can_start_from_middle_of_long_wrapping_line/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'jkl ', 'F - test_pagedown_can_start_from_middle_of_long_wrapping_line/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'mno ', 'F - test_pagedown_can_start_from_middle_of_long_wrapping_line/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_pagedown_never_moves_up()"},{"Add":" io.write('\\ntest_pagedown_never_moves_up')"},{"Add":" -- draw the final screen line of a wrapping line"},{"Add":" App.screen.init{width=Editor_state.left+30, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc def ghi'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=9}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=9}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" -- pagedown makes no change"},{"Add":" edit.run_after_keychord(Editor_state, 'pagedown')"},{"Add":" check_eq(Editor_state.screen_top1.line, 1, 'F - test_pagedown_never_moves_up/screen_top:line')"},{"Add":" check_eq(Editor_state.screen_top1.pos, 9, 'F - test_pagedown_never_moves_up/screen_top:pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_down_arrow_moves_cursor()"},{"Add":" io.write('\\ntest_down_arrow_moves_cursor')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" -- initially the first three lines are displayed"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_down_arrow_moves_cursor/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_down_arrow_moves_cursor/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_down_arrow_moves_cursor/baseline/screen:3')"},{"Add":" -- after hitting the down arrow, the cursor moves down by 1 line"},{"Add":" edit.run_after_keychord(Editor_state, 'down')"},{"Add":" check_eq(Editor_state.screen_top1.line, 1, 'F - test_down_arrow_moves_cursor/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 2, 'F - test_down_arrow_moves_cursor/cursor')"},{"Add":" -- the screen is unchanged"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_down_arrow_moves_cursor/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_down_arrow_moves_cursor/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_down_arrow_moves_cursor/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_down_arrow_scrolls_down_by_one_line()"},{"Add":" io.write('\\ntest_down_arrow_scrolls_down_by_one_line')"},{"Add":" -- display the first three lines with the cursor on the bottom line"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=3, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_down_arrow_scrolls_down_by_one_line/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_line/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_down_arrow_scrolls_down_by_one_line/baseline/screen:3')"},{"Add":" -- after hitting the down arrow the screen scrolls down by one line"},{"Add":" edit.run_after_keychord(Editor_state, 'down')"},{"Add":" check_eq(Editor_state.screen_top1.line, 2, 'F - test_down_arrow_scrolls_down_by_one_line/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 4, 'F - test_down_arrow_scrolls_down_by_one_line/cursor')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_line/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_down_arrow_scrolls_down_by_one_line/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'jkl', 'F - test_down_arrow_scrolls_down_by_one_line/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_down_arrow_scrolls_down_by_one_screen_line()"},{"Add":" io.write('\\ntest_down_arrow_scrolls_down_by_one_screen_line')"},{"Add":" -- display the first three lines with the cursor on the bottom line"},{"Add":" App.screen.init{width=Editor_state.left+30, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=3, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_down_arrow_scrolls_down_by_one_screen_line/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_screen_line/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi ', 'F - test_down_arrow_scrolls_down_by_one_screen_line/baseline/screen:3') -- line wrapping includes trailing whitespace"},{"Add":" -- after hitting the down arrow the screen scrolls down by one line"},{"Add":" edit.run_after_keychord(Editor_state, 'down')"},{"Add":" check_eq(Editor_state.screen_top1.line, 2, 'F - test_down_arrow_scrolls_down_by_one_screen_line/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 3, 'F - test_down_arrow_scrolls_down_by_one_screen_line/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 5, 'F - test_down_arrow_scrolls_down_by_one_screen_line/cursor:pos')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_screen_line/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi ', 'F - test_down_arrow_scrolls_down_by_one_screen_line/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'jkl', 'F - test_down_arrow_scrolls_down_by_one_screen_line/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word()"},{"Add":" io.write('\\ntest_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word')"},{"Add":" -- display the first three lines with the cursor on the bottom line"},{"Add":" App.screen.init{width=Editor_state.left+30, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'ghijkl', 'mno'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=3, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghij', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/baseline/screen:3')"},{"Add":" -- after hitting the down arrow the screen scrolls down by one line"},{"Add":" edit.run_after_keychord(Editor_state, 'down')"},{"Add":" check_eq(Editor_state.screen_top1.line, 2, 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 3, 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 5, 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/cursor:pos')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghij', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'kl', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_page_down_followed_by_down_arrow_does_not_scroll_screen_up()"},{"Add":" io.write('\\ntest_page_down_followed_by_down_arrow_does_not_scroll_screen_up')"},{"Add":" App.screen.init{width=Editor_state.left+30, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'ghijkl', 'mno'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=3, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghij', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline/screen:3')"},{"Add":" -- after hitting pagedown the screen scrolls down to start of a long line"},{"Add":" edit.run_after_keychord(Editor_state, 'pagedown')"},{"Add":" check_eq(Editor_state.screen_top1.line, 3, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline2/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 3, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline2/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 1, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline2/cursor:pos')"},{"Add":" -- after hitting down arrow the screen doesn't scroll down further, and certainly doesn't scroll up"},{"Add":" edit.run_after_keychord(Editor_state, 'down')"},{"Add":" check_eq(Editor_state.screen_top1.line, 3, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 3, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 5, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/cursor:pos')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'ghij', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'kl', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'mno', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_up_arrow_moves_cursor()"},{"Add":" io.write('\\ntest_up_arrow_moves_cursor')"},{"Add":" -- display the first 3 lines with the cursor on the bottom line"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=3, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_up_arrow_moves_cursor/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_up_arrow_moves_cursor/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_up_arrow_moves_cursor/baseline/screen:3')"},{"Add":" -- after hitting the up arrow the cursor moves up by 1 line"},{"Add":" edit.run_after_keychord(Editor_state, 'up')"},{"Add":" check_eq(Editor_state.screen_top1.line, 1, 'F - test_up_arrow_moves_cursor/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 2, 'F - test_up_arrow_moves_cursor/cursor')"},{"Add":" -- the screen is unchanged"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_up_arrow_moves_cursor/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_up_arrow_moves_cursor/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_up_arrow_moves_cursor/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_up_arrow_scrolls_up_by_one_line()"},{"Add":" io.write('\\ntest_up_arrow_scrolls_up_by_one_line')"},{"Add":" -- display the lines 2/3/4 with the cursor on line 2"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=2, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=2, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'def', 'F - test_up_arrow_scrolls_up_by_one_line/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_up_arrow_scrolls_up_by_one_line/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'jkl', 'F - test_up_arrow_scrolls_up_by_one_line/baseline/screen:3')"},{"Add":" -- after hitting the up arrow the screen scrolls up by one line"},{"Add":" edit.run_after_keychord(Editor_state, 'up')"},{"Add":" check_eq(Editor_state.screen_top1.line, 1, 'F - test_up_arrow_scrolls_up_by_one_line/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_up_arrow_scrolls_up_by_one_line/cursor')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_up_arrow_scrolls_up_by_one_line/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_up_arrow_scrolls_up_by_one_line/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_up_arrow_scrolls_up_by_one_line/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_up_arrow_scrolls_up_by_one_screen_line()"},{"Add":" io.write('\\ntest_up_arrow_scrolls_up_by_one_screen_line')"},{"Add":" -- display lines starting from second screen line of a line"},{"Add":" App.screen.init{width=Editor_state.left+30, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=3, pos=6}"},{"Add":" Editor_state.screen_top1 = {line=3, pos=5}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'jkl', 'F - test_up_arrow_scrolls_up_by_one_screen_line/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'mno', 'F - test_up_arrow_scrolls_up_by_one_screen_line/baseline/screen:2')"},{"Add":" -- after hitting the up arrow the screen scrolls up to first screen line"},{"Add":" edit.run_after_keychord(Editor_state, 'up')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'ghi ', 'F - test_up_arrow_scrolls_up_by_one_screen_line/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'jkl', 'F - test_up_arrow_scrolls_up_by_one_screen_line/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'mno', 'F - test_up_arrow_scrolls_up_by_one_screen_line/screen:3')"},{"Add":" check_eq(Editor_state.screen_top1.line, 3, 'F - test_up_arrow_scrolls_up_by_one_screen_line/screen_top')"},{"Add":" check_eq(Editor_state.screen_top1.pos, 1, 'F - test_up_arrow_scrolls_up_by_one_screen_line/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 3, 'F - test_up_arrow_scrolls_up_by_one_screen_line/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 1, 'F - test_up_arrow_scrolls_up_by_one_screen_line/cursor:pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_up_arrow_scrolls_up_to_final_screen_line()"},{"Add":" io.write('\\ntest_up_arrow_scrolls_up_to_final_screen_line')"},{"Add":" -- display lines starting just after a long line"},{"Add":" App.screen.init{width=Editor_state.left+30, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc def', 'ghi', 'jkl', 'mno'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=2, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=2, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'ghi', 'F - test_up_arrow_scrolls_up_to_final_screen_line/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'jkl', 'F - test_up_arrow_scrolls_up_to_final_screen_line/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'mno', 'F - test_up_arrow_scrolls_up_to_final_screen_line/baseline/screen:3')"},{"Add":" -- after hitting the up arrow the screen scrolls up to final screen line of previous line"},{"Add":" edit.run_after_keychord(Editor_state, 'up')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'def', 'F - test_up_arrow_scrolls_up_to_final_screen_line/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_up_arrow_scrolls_up_to_final_screen_line/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'jkl', 'F - test_up_arrow_scrolls_up_to_final_screen_line/screen:3')"},{"Add":" check_eq(Editor_state.screen_top1.line, 1, 'F - test_up_arrow_scrolls_up_to_final_screen_line/screen_top')"},{"Add":" check_eq(Editor_state.screen_top1.pos, 5, 'F - test_up_arrow_scrolls_up_to_final_screen_line/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_up_arrow_scrolls_up_to_final_screen_line/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 5, 'F - test_up_arrow_scrolls_up_to_final_screen_line/cursor:pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_up_arrow_scrolls_up_to_empty_line()"},{"Add":" io.write('\\ntest_up_arrow_scrolls_up_to_empty_line')"},{"Add":" -- display a screenful of text with an empty line just above it outside the screen"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'', 'abc', 'def', 'ghi', 'jkl'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=2, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=2, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_up_arrow_scrolls_up_to_empty_line/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_up_arrow_scrolls_up_to_empty_line/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_up_arrow_scrolls_up_to_empty_line/baseline/screen:3')"},{"Add":" -- after hitting the up arrow the screen scrolls up by one line"},{"Add":" edit.run_after_keychord(Editor_state, 'up')"},{"Add":" check_eq(Editor_state.screen_top1.line, 1, 'F - test_up_arrow_scrolls_up_to_empty_line/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_up_arrow_scrolls_up_to_empty_line/cursor')"},{"Add":" y = Editor_state.top"},{"Add":" -- empty first line"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'abc', 'F - test_up_arrow_scrolls_up_to_empty_line/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_up_arrow_scrolls_up_to_empty_line/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_pageup()"},{"Add":" io.write('\\ntest_pageup')"},{"Add":" App.screen.init{width=120, height=45}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'ghi'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=2, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=2, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" -- initially the last two lines are displayed"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'def', 'F - test_pageup/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_pageup/baseline/screen:2')"},{"Add":" -- after pageup the cursor goes to first line"},{"Add":" edit.run_after_keychord(Editor_state, 'pageup')"},{"Add":" check_eq(Editor_state.screen_top1.line, 1, 'F - test_pageup/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_pageup/cursor')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_pageup/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_pageup/screen:2')"},{"Add":"end"},{"Add":""},{"Add":"function test_pageup_scrolls_up_by_screen_line()"},{"Add":" io.write('\\ntest_pageup_scrolls_up_by_screen_line')"},{"Add":" -- display the first three lines with the cursor on the bottom line"},{"Add":" App.screen.init{width=Editor_state.left+30, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc def', 'ghi', 'jkl', 'mno'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=2, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=2, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'ghi', 'F - test_pageup_scrolls_up_by_screen_line/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'jkl', 'F - test_pageup_scrolls_up_by_screen_line/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'mno', 'F - test_pageup_scrolls_up_by_screen_line/baseline/screen:3') -- line wrapping includes trailing whitespace"},{"Add":" -- after hitting the page-up key the screen scrolls up to top"},{"Add":" edit.run_after_keychord(Editor_state, 'pageup')"},{"Add":" check_eq(Editor_state.screen_top1.line, 1, 'F - test_pageup_scrolls_up_by_screen_line/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_pageup_scrolls_up_by_screen_line/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 1, 'F - test_pageup_scrolls_up_by_screen_line/cursor:pos')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc ', 'F - test_pageup_scrolls_up_by_screen_line/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_pageup_scrolls_up_by_screen_line/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_pageup_scrolls_up_by_screen_line/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_pageup_scrolls_up_from_middle_screen_line()"},{"Add":" io.write('\\ntest_pageup_scrolls_up_from_middle_screen_line')"},{"Add":" -- display a few lines starting from the middle of a line (Editor_state.cursor1.pos > 1)"},{"Add":" App.screen.init{width=Editor_state.left+30, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc def', 'ghi jkl', 'mno'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=2, pos=5}"},{"Add":" Editor_state.screen_top1 = {line=2, pos=5}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'jkl', 'F - test_pageup_scrolls_up_from_middle_screen_line/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'mno', 'F - test_pageup_scrolls_up_from_middle_screen_line/baseline/screen:3') -- line wrapping includes trailing whitespace"},{"Add":" -- after hitting the page-up key the screen scrolls up to top"},{"Add":" edit.run_after_keychord(Editor_state, 'pageup')"},{"Add":" check_eq(Editor_state.screen_top1.line, 1, 'F - test_pageup_scrolls_up_from_middle_screen_line/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_pageup_scrolls_up_from_middle_screen_line/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 1, 'F - test_pageup_scrolls_up_from_middle_screen_line/cursor:pos')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc ', 'F - test_pageup_scrolls_up_from_middle_screen_line/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_pageup_scrolls_up_from_middle_screen_line/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi ', 'F - test_pageup_scrolls_up_from_middle_screen_line/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_enter_on_bottom_line_scrolls_down()"},{"Add":" io.write('\\ntest_enter_on_bottom_line_scrolls_down')"},{"Add":" -- display a few lines with cursor on bottom line"},{"Add":" App.screen.init{width=Editor_state.left+30, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=3, pos=2}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_enter_on_bottom_line_scrolls_down/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_enter_on_bottom_line_scrolls_down/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_enter_on_bottom_line_scrolls_down/baseline/screen:3')"},{"Add":" -- after hitting the enter key the screen scrolls down"},{"Add":" edit.run_after_keychord(Editor_state, 'return')"},{"Add":" check_eq(Editor_state.screen_top1.line, 2, 'F - test_enter_on_bottom_line_scrolls_down/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 4, 'F - test_enter_on_bottom_line_scrolls_down/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 1, 'F - test_enter_on_bottom_line_scrolls_down/cursor:pos')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'def', 'F - test_enter_on_bottom_line_scrolls_down/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'g', 'F - test_enter_on_bottom_line_scrolls_down/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'hi', 'F - test_enter_on_bottom_line_scrolls_down/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom()"},{"Add":" io.write('\\ntest_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom')"},{"Add":" -- display just the bottom line on screen"},{"Add":" App.screen.init{width=Editor_state.left+30, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=4, pos=2}"},{"Add":" Editor_state.screen_top1 = {line=4, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'jkl', 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/baseline/screen:1')"},{"Add":" -- after hitting the enter key the screen does not scroll down"},{"Add":" edit.run_after_keychord(Editor_state, 'return')"},{"Add":" check_eq(Editor_state.screen_top1.line, 4, 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 5, 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 1, 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/cursor:pos')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'j', 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'kl', 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/screen:2')"},{"Add":"end"},{"Add":""},{"Add":"function test_inserting_text_on_final_line_avoids_scrolling_down_when_not_at_bottom()"},{"Add":" io.write('\\ntest_inserting_text_on_final_line_avoids_scrolling_down_when_not_at_bottom')"},{"Add":" -- display just an empty bottom line on screen"},{"Add":" App.screen.init{width=Editor_state.left+30, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', ''}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=2, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=2, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" -- after hitting the inserting_text key the screen does not scroll down"},{"Add":" edit.run_after_textinput(Editor_state, 'a')"},{"Add":" check_eq(Editor_state.screen_top1.line, 2, 'F - test_inserting_text_on_final_line_avoids_scrolling_down_when_not_at_bottom/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 2, 'F - test_inserting_text_on_final_line_avoids_scrolling_down_when_not_at_bottom/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 2, 'F - test_inserting_text_on_final_line_avoids_scrolling_down_when_not_at_bottom/cursor:pos')"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'a', 'F - test_inserting_text_on_final_line_avoids_scrolling_down_when_not_at_bottom/screen:1')"},{"Add":"end"},{"Add":""},{"Add":"function test_typing_on_bottom_line_scrolls_down()"},{"Add":" io.write('\\ntest_typing_on_bottom_line_scrolls_down')"},{"Add":" -- display a few lines with cursor on bottom line"},{"Add":" App.screen.init{width=Editor_state.left+30, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=3, pos=4}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_typing_on_bottom_line_scrolls_down/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_typing_on_bottom_line_scrolls_down/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_typing_on_bottom_line_scrolls_down/baseline/screen:3')"},{"Add":" -- after typing something the line wraps and the screen scrolls down"},{"Add":" edit.run_after_textinput(Editor_state, 'j')"},{"Add":" edit.run_after_textinput(Editor_state, 'k')"},{"Add":" edit.run_after_textinput(Editor_state, 'l')"},{"Add":" check_eq(Editor_state.screen_top1.line, 2, 'F - test_typing_on_bottom_line_scrolls_down/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 3, 'F - test_typing_on_bottom_line_scrolls_down/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 7, 'F - test_typing_on_bottom_line_scrolls_down/cursor:pos')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'def', 'F - test_typing_on_bottom_line_scrolls_down/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghij', 'F - test_typing_on_bottom_line_scrolls_down/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'kl', 'F - test_typing_on_bottom_line_scrolls_down/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_left_arrow_scrolls_up_in_wrapped_line()"},{"Add":" io.write('\\ntest_left_arrow_scrolls_up_in_wrapped_line')"},{"Add":" -- display lines starting from second screen line of a line"},{"Add":" App.screen.init{width=Editor_state.left+30, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.screen_top1 = {line=3, pos=5}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" -- cursor is at top of screen"},{"Add":" Editor_state.cursor1 = {line=3, pos=5}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'jkl', 'F - test_left_arrow_scrolls_up_in_wrapped_line/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'mno', 'F - test_left_arrow_scrolls_up_in_wrapped_line/baseline/screen:2')"},{"Add":" -- after hitting the left arrow the screen scrolls up to first screen line"},{"Add":" edit.run_after_keychord(Editor_state, 'left')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'ghi ', 'F - test_left_arrow_scrolls_up_in_wrapped_line/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'jkl', 'F - test_left_arrow_scrolls_up_in_wrapped_line/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'mno', 'F - test_left_arrow_scrolls_up_in_wrapped_line/screen:3')"},{"Add":" check_eq(Editor_state.screen_top1.line, 3, 'F - test_left_arrow_scrolls_up_in_wrapped_line/screen_top')"},{"Add":" check_eq(Editor_state.screen_top1.pos, 1, 'F - test_left_arrow_scrolls_up_in_wrapped_line/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 3, 'F - test_left_arrow_scrolls_up_in_wrapped_line/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 4, 'F - test_left_arrow_scrolls_up_in_wrapped_line/cursor:pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_right_arrow_scrolls_down_in_wrapped_line()"},{"Add":" io.write('\\ntest_right_arrow_scrolls_down_in_wrapped_line')"},{"Add":" -- display the first three lines with the cursor on the bottom line"},{"Add":" App.screen.init{width=Editor_state.left+30, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" -- cursor is at bottom right of screen"},{"Add":" Editor_state.cursor1 = {line=3, pos=5}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_right_arrow_scrolls_down_in_wrapped_line/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_right_arrow_scrolls_down_in_wrapped_line/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi ', 'F - test_right_arrow_scrolls_down_in_wrapped_line/baseline/screen:3') -- line wrapping includes trailing whitespace"},{"Add":" -- after hitting the right arrow the screen scrolls down by one line"},{"Add":" edit.run_after_keychord(Editor_state, 'right')"},{"Add":" check_eq(Editor_state.screen_top1.line, 2, 'F - test_right_arrow_scrolls_down_in_wrapped_line/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 3, 'F - test_right_arrow_scrolls_down_in_wrapped_line/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 6, 'F - test_right_arrow_scrolls_down_in_wrapped_line/cursor:pos')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'def', 'F - test_right_arrow_scrolls_down_in_wrapped_line/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi ', 'F - test_right_arrow_scrolls_down_in_wrapped_line/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'jkl', 'F - test_right_arrow_scrolls_down_in_wrapped_line/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_home_scrolls_up_in_wrapped_line()"},{"Add":" io.write('\\ntest_home_scrolls_up_in_wrapped_line')"},{"Add":" -- display lines starting from second screen line of a line"},{"Add":" App.screen.init{width=Editor_state.left+30, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.screen_top1 = {line=3, pos=5}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" -- cursor is at top of screen"},{"Add":" Editor_state.cursor1 = {line=3, pos=5}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'jkl', 'F - test_home_scrolls_up_in_wrapped_line/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'mno', 'F - test_home_scrolls_up_in_wrapped_line/baseline/screen:2')"},{"Add":" -- after hitting home the screen scrolls up to first screen line"},{"Add":" edit.run_after_keychord(Editor_state, 'home')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'ghi ', 'F - test_home_scrolls_up_in_wrapped_line/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'jkl', 'F - test_home_scrolls_up_in_wrapped_line/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'mno', 'F - test_home_scrolls_up_in_wrapped_line/screen:3')"},{"Add":" check_eq(Editor_state.screen_top1.line, 3, 'F - test_home_scrolls_up_in_wrapped_line/screen_top')"},{"Add":" check_eq(Editor_state.screen_top1.pos, 1, 'F - test_home_scrolls_up_in_wrapped_line/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 3, 'F - test_home_scrolls_up_in_wrapped_line/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 1, 'F - test_home_scrolls_up_in_wrapped_line/cursor:pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_end_scrolls_down_in_wrapped_line()"},{"Add":" io.write('\\ntest_end_scrolls_down_in_wrapped_line')"},{"Add":" -- display the first three lines with the cursor on the bottom line"},{"Add":" App.screen.init{width=Editor_state.left+30, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" -- cursor is at bottom right of screen"},{"Add":" Editor_state.cursor1 = {line=3, pos=5}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_end_scrolls_down_in_wrapped_line/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_end_scrolls_down_in_wrapped_line/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi ', 'F - test_end_scrolls_down_in_wrapped_line/baseline/screen:3') -- line wrapping includes trailing whitespace"},{"Add":" -- after hitting end the screen scrolls down by one line"},{"Add":" edit.run_after_keychord(Editor_state, 'end')"},{"Add":" check_eq(Editor_state.screen_top1.line, 2, 'F - test_end_scrolls_down_in_wrapped_line/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 3, 'F - test_end_scrolls_down_in_wrapped_line/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 8, 'F - test_end_scrolls_down_in_wrapped_line/cursor:pos')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'def', 'F - test_end_scrolls_down_in_wrapped_line/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi ', 'F - test_end_scrolls_down_in_wrapped_line/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'jkl', 'F - test_end_scrolls_down_in_wrapped_line/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_position_cursor_on_recently_edited_wrapping_line()"},{"Add":" -- draw a line wrapping over 2 screen lines"},{"Add":" io.write('\\ntest_position_cursor_on_recently_edited_wrapping_line')"},{"Add":" App.screen.init{width=100, height=200}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc def ghi jkl mno pqr ', 'xyz'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=25}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc def ghi ', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline1/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'jkl mno pqr ', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline1/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'xyz', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline1/screen:3')"},{"Add":" -- add to the line until it's wrapping over 3 screen lines"},{"Add":" edit.run_after_textinput(Editor_state, 's')"},{"Add":" edit.run_after_textinput(Editor_state, 't')"},{"Add":" edit.run_after_textinput(Editor_state, 'u')"},{"Add":" check_eq(Editor_state.cursor1.pos, 28, 'F - test_position_cursor_on_recently_edited_wrapping_line/cursor:pos')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc def ghi ', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline2/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'jkl mno pqr ', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline2/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'stu', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline2/screen:3')"},{"Add":" -- try to move the cursor earlier in the third screen line by clicking the mouse"},{"Add":" edit.run_after_mouse_press(Editor_state, Editor_state.left+8,Editor_state.top+Editor_state.line_height*2+5, 1)"},{"Add":" -- cursor should move"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_position_cursor_on_recently_edited_wrapping_line/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 26, 'F - test_position_cursor_on_recently_edited_wrapping_line/cursor:pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_backspace_can_scroll_up()"},{"Add":" io.write('\\ntest_backspace_can_scroll_up')"},{"Add":" -- display the lines 2/3/4 with the cursor on line 2"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=2, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=2, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'def', 'F - test_backspace_can_scroll_up/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_backspace_can_scroll_up/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'jkl', 'F - test_backspace_can_scroll_up/baseline/screen:3')"},{"Add":" -- after hitting backspace the screen scrolls up by one line"},{"Add":" edit.run_after_keychord(Editor_state, 'backspace')"},{"Add":" check_eq(Editor_state.screen_top1.line, 1, 'F - test_backspace_can_scroll_up/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_backspace_can_scroll_up/cursor')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'abcdef', 'F - test_backspace_can_scroll_up/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_backspace_can_scroll_up/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'jkl', 'F - test_backspace_can_scroll_up/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_backspace_can_scroll_up_screen_line()"},{"Add":" io.write('\\ntest_backspace_can_scroll_up_screen_line')"},{"Add":" -- display lines starting from second screen line of a line"},{"Add":" App.screen.init{width=Editor_state.left+30, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=3, pos=5}"},{"Add":" Editor_state.screen_top1 = {line=3, pos=5}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'jkl', 'F - test_backspace_can_scroll_up_screen_line/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'mno', 'F - test_backspace_can_scroll_up_screen_line/baseline/screen:2')"},{"Add":" -- after hitting backspace the screen scrolls up by one screen line"},{"Add":" edit.run_after_keychord(Editor_state, 'backspace')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'ghij', 'F - test_backspace_can_scroll_up_screen_line/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'kl', 'F - test_backspace_can_scroll_up_screen_line/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'mno', 'F - test_backspace_can_scroll_up_screen_line/screen:3')"},{"Add":" check_eq(Editor_state.screen_top1.line, 3, 'F - test_backspace_can_scroll_up_screen_line/screen_top')"},{"Add":" check_eq(Editor_state.screen_top1.pos, 1, 'F - test_backspace_can_scroll_up_screen_line/screen_top')"},{"Add":" check_eq(Editor_state.cursor1.line, 3, 'F - test_backspace_can_scroll_up_screen_line/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 4, 'F - test_backspace_can_scroll_up_screen_line/cursor:pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_backspace_past_line_boundary()"},{"Add":" io.write('\\ntest_backspace_past_line_boundary')"},{"Add":" -- position cursor at start of a (non-first) line"},{"Add":" App.screen.init{width=Editor_state.left+30, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=2, pos=1}"},{"Add":" -- backspace joins with previous line"},{"Add":" edit.run_after_keychord(Editor_state, 'backspace')"},{"Add":" check_eq(Editor_state.lines[1].data, 'abcdef', \"F - test_backspace_past_line_boundary\")"},{"Add":"end"},{"Add":""},{"Add":"function test_undo_insert_text()"},{"Add":" io.write('\\ntest_undo_insert_text')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'xyz'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=2, pos=4}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" -- insert a character"},{"Add":" edit.draw(Editor_state)"},{"Add":" edit.run_after_textinput(Editor_state, 'g')"},{"Add":" check_eq(Editor_state.cursor1.line, 2, 'F - test_undo_insert_text/baseline/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 5, 'F - test_undo_insert_text/baseline/cursor:pos')"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_undo_insert_text/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'defg', 'F - test_undo_insert_text/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'xyz', 'F - test_undo_insert_text/baseline/screen:3')"},{"Add":" -- undo"},{"Add":" edit.run_after_keychord(Editor_state, 'C-z')"},{"Add":" check_eq(Editor_state.cursor1.line, 2, 'F - test_undo_insert_text/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 4, 'F - test_undo_insert_text/cursor:pos')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_undo_insert_text/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_undo_insert_text/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'xyz', 'F - test_undo_insert_text/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_undo_delete_text()"},{"Add":" io.write('\\ntest_undo_delete_text')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'defg', 'xyz'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=2, pos=5}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" -- delete a character"},{"Add":" edit.run_after_keychord(Editor_state, 'backspace')"},{"Add":" check_eq(Editor_state.cursor1.line, 2, 'F - test_undo_delete_text/baseline/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 4, 'F - test_undo_delete_text/baseline/cursor:pos')"},{"Add":" local y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_undo_delete_text/baseline/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_undo_delete_text/baseline/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'xyz', 'F - test_undo_delete_text/baseline/screen:3')"},{"Add":" -- undo"},{"Add":"--? -- after undo, the backspaced key is selected"},{"Add":" edit.run_after_keychord(Editor_state, 'C-z')"},{"Add":" check_eq(Editor_state.cursor1.line, 2, 'F - test_undo_delete_text/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 5, 'F - test_undo_delete_text/cursor:pos')"},{"Add":" y = Editor_state.top"},{"Add":" App.screen.check(y, 'abc', 'F - test_undo_delete_text/screen:1')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'defg', 'F - test_undo_delete_text/screen:2')"},{"Add":" y = y + Editor_state.line_height"},{"Add":" App.screen.check(y, 'xyz', 'F - test_undo_delete_text/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_search()"},{"Add":" io.write('\\ntest_search')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc', 'def', 'ghi', 'deg'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" -- search for a string"},{"Add":" edit.run_after_keychord(Editor_state, 'C-f')"},{"Add":" edit.run_after_textinput(Editor_state, 'd')"},{"Add":" edit.run_after_keychord(Editor_state, 'return')"},{"Add":" check_eq(Editor_state.cursor1.line, 2, 'F - test_search/1/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 1, 'F - test_search/1/cursor:pos')"},{"Add":" -- reset cursor"},{"Add":" Editor_state.cursor1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" -- search for second occurrence"},{"Add":" edit.run_after_keychord(Editor_state, 'C-f')"},{"Add":" edit.run_after_textinput(Editor_state, 'de')"},{"Add":" edit.run_after_keychord(Editor_state, 'down')"},{"Add":" edit.run_after_keychord(Editor_state, 'return')"},{"Add":" check_eq(Editor_state.cursor1.line, 4, 'F - test_search/2/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 1, 'F - test_search/2/cursor:pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_search_upwards()"},{"Add":" io.write('\\ntest_search_upwards')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc abd'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=2}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" -- search for a string"},{"Add":" edit.run_after_keychord(Editor_state, 'C-f')"},{"Add":" edit.run_after_textinput(Editor_state, 'a')"},{"Add":" -- search for previous occurrence"},{"Add":" edit.run_after_keychord(Editor_state, 'up')"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_search_upwards/2/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 1, 'F - test_search_upwards/2/cursor:pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_search_wrap()"},{"Add":" io.write('\\ntest_search_wrap')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=3}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" -- search for a string"},{"Add":" edit.run_after_keychord(Editor_state, 'C-f')"},{"Add":" edit.run_after_textinput(Editor_state, 'a')"},{"Add":" edit.run_after_keychord(Editor_state, 'return')"},{"Add":" -- cursor wraps"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_search_wrap/1/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 1, 'F - test_search_wrap/1/cursor:pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_search_wrap_upwards()"},{"Add":" io.write('\\ntest_search_wrap_upwards')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.lines = load_array{'abc abd'}"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.cursor1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.screen_bottom1 = {}"},{"Add":" edit.draw(Editor_state)"},{"Add":" -- search upwards for a string"},{"Add":" edit.run_after_keychord(Editor_state, 'C-f')"},{"Add":" edit.run_after_textinput(Editor_state, 'a')"},{"Add":" edit.run_after_keychord(Editor_state, 'up')"},{"Add":" -- cursor wraps"},{"Add":" check_eq(Editor_state.cursor1.line, 1, 'F - test_search_wrap_upwards/1/cursor:line')"},{"Add":" check_eq(Editor_state.cursor1.pos, 5, 'F - test_search_wrap_upwards/1/cursor:pos')"},{"Add":"end"}]}},{"FileAdd":{"meta":{"basename":"source_text.lua","metadata":0},"context":[{"change":10,"pos":2}],"contents":[{"Add":"-- text editor, particularly text drawing, horizontal wrap, vertical scrolling"},{"Add":"Text = {}"},{"Add":"AB_padding = 20 -- space in pixels between A side and B side"},{"Add":""},{"Add":"-- draw a line starting from startpos to screen at y between State.left and State.right"},{"Add":"-- return the final y, and pos,posB of start of final screen line drawn"},{"Add":"function Text.draw(State, line_index, y, startpos, startposB)"},{"Add":" local line = State.lines[line_index]"},{"Add":" local line_cache = State.line_cache[line_index]"},{"Add":" line_cache.starty = y"},{"Add":" line_cache.startpos = startpos"},{"Add":" line_cache.startposB = startposB"},{"Add":" -- draw A side"},{"Add":" local overflows_screen, x, pos, screen_line_starting_pos"},{"Add":" if startpos then"},{"Add":" overflows_screen, x, y, pos, screen_line_starting_pos = Text.draw_wrapping_line(State, line_index, State.left, y, startpos)"},{"Add":" if overflows_screen then"},{"Add":" return y, screen_line_starting_pos"},{"Add":" end"},{"Add":" if Focus == 'edit' and State.cursor1.pos then"},{"Add":" if State.search_term == nil then"},{"Add":" if line_index == State.cursor1.line and State.cursor1.pos == pos then"},{"Add":" Text.draw_cursor(State, x, y)"},{"Add":" end"},{"Add":" end"},{"Add":" end"},{"Add":" else"},{"Add":" x = State.left"},{"Add":" end"},{"Add":" -- check for B side"},{"Add":"--? if line_index == 8 then print('checking for B side') end"},{"Add":" if line.dataB == nil then"},{"Add":" assert(y)"},{"Add":" assert(screen_line_starting_pos)"},{"Add":"--? if line_index == 8 then print('return 1') end"},{"Add":" return y, screen_line_starting_pos"},{"Add":" end"},{"Add":" if not State.expanded and not line.expanded then"},{"Add":" assert(y)"},{"Add":" assert(screen_line_starting_pos)"},{"Add":"--? if line_index == 8 then print('return 2') end"},{"Add":" button(State, 'expand', {x=x+AB_padding, y=y+2, w=App.width(State.em), h=State.line_height-4, color={1,1,1},"},{"Add":" icon = function(button_params)"},{"Add":" App.color(Fold_background_color)"},{"Add":" love.graphics.rectangle('fill', button_params.x, button_params.y, App.width(State.em), State.line_height-4, 2,2)"},{"Add":" end,"},{"Add":" onpress1 = function()"},{"Add":" line.expanded = true"},{"Add":" end,"},{"Add":" })"},{"Add":" return y, screen_line_starting_pos"},{"Add":" end"},{"Add":" -- draw B side"},{"Add":"--? if line_index == 8 then print('drawing B side') end"},{"Add":" App.color(Fold_color)"},{"Add":"--? if Foo then"},{"Add":"--? print('draw:', State.lines[line_index].data, \"=====\", State.lines[line_index].dataB, 'starting from x', x+AB_padding)"},{"Add":"--? end"},{"Add":" if startposB then"},{"Add":" overflows_screen, x, y, pos, screen_line_starting_pos = Text.draw_wrapping_lineB(State, line_index, x,y, startposB)"},{"Add":" else"},{"Add":" overflows_screen, x, y, pos, screen_line_starting_pos = Text.draw_wrapping_lineB(State, line_index, x+AB_padding,y, 1)"},{"Add":" end"},{"Add":" if overflows_screen then"},{"Add":" return y, nil, screen_line_starting_pos"},{"Add":" end"},{"Add":"--? if line_index == 8 then print('a') end"},{"Add":" if Focus == 'edit' and State.cursor1.posB then"},{"Add":"--? if line_index == 8 then print('b') end"},{"Add":" if State.search_term == nil then"},{"Add":"--? if line_index == 8 then print('c', State.cursor1.line, State.cursor1.posB, line_index, pos) end"},{"Add":" if line_index == State.cursor1.line and State.cursor1.posB == pos then"},{"Add":" Text.draw_cursor(State, x, y)"},{"Add":" end"},{"Add":" end"},{"Add":" end"},{"Add":" return y, nil, screen_line_starting_pos"},{"Add":"end"},{"Add":""},{"Add":"-- Given an array of fragments, draw the subset starting from pos to screen"},{"Add":"-- starting from (x,y)."},{"Add":"-- Return:"},{"Add":"-- - whether we got to bottom of screen before end of line"},{"Add":"-- - the final (x,y)"},{"Add":"-- - the final pos"},{"Add":"-- - starting pos of the final screen line drawn"},{"Add":"function Text.draw_wrapping_line(State, line_index, x,y, startpos)"},{"Add":" local line = State.lines[line_index]"},{"Add":" local line_cache = State.line_cache[line_index]"},{"Add":"--? print('== line', line_index, '^'..line.data..'$')"},{"Add":" local screen_line_starting_pos = startpos"},{"Add":" Text.compute_fragments(State, line_index)"},{"Add":" local pos = 1"},{"Add":" initialize_color()"},{"Add":" for _, f in ipairs(line_cache.fragments) do"},{"Add":" App.color(Text_color)"},{"Add":" local frag, frag_text = f.data, f.text"},{"Add":" select_color(frag)"},{"Add":" local frag_len = utf8.len(frag)"},{"Add":"--? print('text.draw:', frag, 'at', line_index,pos, 'after', x,y)"},{"Add":" if pos < startpos then"},{"Add":" -- render nothing"},{"Add":"--? print('skipping', frag)"},{"Add":" else"},{"Add":" -- render fragment"},{"Add":" local frag_width = App.width(frag_text)"},{"Add":" if x + frag_width > State.right then"},{"Add":" assert(x > State.left) -- no overfull lines"},{"Add":" y = y + State.line_height"},{"Add":" if y + State.line_height > App.screen.height then"},{"Add":" return --[[screen filled]] true, x,y, pos, screen_line_starting_pos"},{"Add":" end"},{"Add":" screen_line_starting_pos = pos"},{"Add":" x = State.left"},{"Add":" end"},{"Add":" App.screen.draw(frag_text, x,y)"},{"Add":" -- render cursor if necessary"},{"Add":" if State.cursor1.pos and line_index == State.cursor1.line then"},{"Add":" if pos <= State.cursor1.pos and pos + frag_len > State.cursor1.pos then"},{"Add":" if State.search_term then"},{"Add":" if State.lines[State.cursor1.line].data:sub(State.cursor1.pos, State.cursor1.pos+utf8.len(State.search_term)-1) == State.search_term then"},{"Add":" local lo_px = Text.draw_highlight(State, line, x,y, pos, State.cursor1.pos, State.cursor1.pos+utf8.len(State.search_term))"},{"Add":" App.color(Text_color)"},{"Add":" love.graphics.print(State.search_term, x+lo_px,y)"},{"Add":" end"},{"Add":" elseif Focus == 'edit' then"},{"Add":" Text.draw_cursor(State, x+Text.x(frag, State.cursor1.pos-pos+1), y)"},{"Add":" App.color(Text_color)"},{"Add":" end"},{"Add":" end"},{"Add":" end"},{"Add":" x = x + frag_width"},{"Add":" end"},{"Add":" pos = pos + frag_len"},{"Add":" end"},{"Add":" return false, x,y, pos, screen_line_starting_pos"},{"Add":"end"},{"Add":""},{"Add":"function Text.draw_wrapping_lineB(State, line_index, x,y, startpos)"},{"Add":" local line = State.lines[line_index]"},{"Add":" local line_cache = State.line_cache[line_index]"},{"Add":" local screen_line_starting_pos = startpos"},{"Add":" Text.compute_fragmentsB(State, line_index, x)"},{"Add":" local pos = 1"},{"Add":" for _, f in ipairs(line_cache.fragmentsB) do"},{"Add":" local frag, frag_text = f.data, f.text"},{"Add":" local frag_len = utf8.len(frag)"},{"Add":"--? print('text.draw:', frag, 'at', line_index,pos, 'after', x,y)"},{"Add":" if pos < startpos then"},{"Add":" -- render nothing"},{"Add":"--? print('skipping', frag)"},{"Add":" else"},{"Add":" -- render fragment"},{"Add":" local frag_width = App.width(frag_text)"},{"Add":" if x + frag_width > State.right then"},{"Add":" assert(x > State.left) -- no overfull lines"},{"Add":" y = y + State.line_height"},{"Add":" if y + State.line_height > App.screen.height then"},{"Add":" return --[[screen filled]] true, x,y, pos, screen_line_starting_pos"},{"Add":" end"},{"Add":" screen_line_starting_pos = pos"},{"Add":" x = State.left"},{"Add":" end"},{"Add":" App.screen.draw(frag_text, x,y)"},{"Add":" -- render cursor if necessary"},{"Add":" if State.cursor1.posB and line_index == State.cursor1.line then"},{"Add":" if pos <= State.cursor1.posB and pos + frag_len > State.cursor1.posB then"},{"Add":" if State.search_term then"},{"Add":" if State.lines[State.cursor1.line].dataB:sub(State.cursor1.posB, State.cursor1.posB+utf8.len(State.search_term)-1) == State.search_term then"},{"Add":" local lo_px = Text.draw_highlight(State, line, x,y, pos, State.cursor1.posB, State.cursor1.posB+utf8.len(State.search_term))"},{"Add":" App.color(Fold_color)"},{"Add":" love.graphics.print(State.search_term, x+lo_px,y)"},{"Add":" end"},{"Add":" elseif Focus == 'edit' then"},{"Add":" Text.draw_cursor(State, x+Text.x(frag, State.cursor1.posB-pos+1), y)"},{"Add":" App.color(Fold_color)"},{"Add":" end"},{"Add":" end"},{"Add":" end"},{"Add":" x = x + frag_width"},{"Add":" end"},{"Add":" pos = pos + frag_len"},{"Add":" end"},{"Add":" return false, x,y, pos, screen_line_starting_pos"},{"Add":"end"},{"Add":""},{"Add":"function Text.draw_cursor(State, x, y)"},{"Add":" -- blink every 0.5s"},{"Add":" if math.floor(Cursor_time*2)%2 == 0 then"},{"Add":" App.color(Cursor_color)"},{"Add":" love.graphics.rectangle('fill', x,y, 3,State.line_height)"},{"Add":" end"},{"Add":" State.cursor_x = x"},{"Add":" State.cursor_y = y+State.line_height"},{"Add":"end"},{"Add":""},{"Add":"function Text.populate_screen_line_starting_pos(State, line_index)"},{"Add":" local line = State.lines[line_index]"},{"Add":" local line_cache = State.line_cache[line_index]"},{"Add":" if line_cache.screen_line_starting_pos then"},{"Add":" return"},{"Add":" end"},{"Add":" -- duplicate some logic from Text.draw"},{"Add":" Text.compute_fragments(State, line_index)"},{"Add":" line_cache.screen_line_starting_pos = {1}"},{"Add":" local x = State.left"},{"Add":" local pos = 1"},{"Add":" for _, f in ipairs(line_cache.fragments) do"},{"Add":" local frag, frag_text = f.data, f.text"},{"Add":" -- render fragment"},{"Add":" local frag_width = App.width(frag_text)"},{"Add":" if x + frag_width > State.right then"},{"Add":" x = State.left"},{"Add":" table.insert(line_cache.screen_line_starting_pos, pos)"},{"Add":" end"},{"Add":" x = x + frag_width"},{"Add":" local frag_len = utf8.len(frag)"},{"Add":" pos = pos + frag_len"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.compute_fragments(State, line_index)"},{"Add":"--? print('compute_fragments', line_index, 'between', State.left, State.right)"},{"Add":" local line = State.lines[line_index]"},{"Add":" local line_cache = State.line_cache[line_index]"},{"Add":" if line_cache.fragments then"},{"Add":" return"},{"Add":" end"},{"Add":" line_cache.fragments = {}"},{"Add":" local x = State.left"},{"Add":" -- try to wrap at word boundaries"},{"Add":" for frag in line.data:gmatch('%S*%s*') do"},{"Add":" local frag_text = App.newText(love.graphics.getFont(), frag)"},{"Add":" local frag_width = App.width(frag_text)"},{"Add":"--? print('x: '..tostring(x)..'; frag_width: '..tostring(frag_width)..'; '..tostring(State.right-x)..'px to go')"},{"Add":" while x + frag_width > State.right do"},{"Add":"--? print(('checking whether to split fragment ^%s$ of width %d when rendering from %d'):format(frag, frag_width, x))"},{"Add":" if (x-State.left) < 0.8 * (State.right-State.left) then"},{"Add":"--? print('splitting')"},{"Add":" -- long word; chop it at some letter"},{"Add":" -- We're not going to reimplement TeX here."},{"Add":" local bpos = Text.nearest_pos_less_than(frag, State.right - x)"},{"Add":"--? print('bpos', bpos)"},{"Add":" if bpos == 0 then break end -- avoid infinite loop when window is too narrow"},{"Add":" local boffset = Text.offset(frag, bpos+1) -- byte _after_ bpos"},{"Add":"--? print('space for '..tostring(bpos)..' graphemes, '..tostring(boffset-1)..' bytes')"},{"Add":" local frag1 = string.sub(frag, 1, boffset-1)"},{"Add":" local frag1_text = App.newText(love.graphics.getFont(), frag1)"},{"Add":" local frag1_width = App.width(frag1_text)"},{"Add":"--? print('extracting ^'..frag1..'$ of width '..tostring(frag1_width)..'px')"},{"Add":" assert(x + frag1_width <= State.right)"},{"Add":" table.insert(line_cache.fragments, {data=frag1, text=frag1_text})"},{"Add":" frag = string.sub(frag, boffset)"},{"Add":" frag_text = App.newText(love.graphics.getFont(), frag)"},{"Add":" frag_width = App.width(frag_text)"},{"Add":" end"},{"Add":" x = State.left -- new line"},{"Add":" end"},{"Add":" if #frag > 0 then"},{"Add":"--? print('inserting ^'..frag..'$ of width '..tostring(frag_width)..'px')"},{"Add":" table.insert(line_cache.fragments, {data=frag, text=frag_text})"},{"Add":" end"},{"Add":" x = x + frag_width"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.populate_screen_line_starting_posB(State, line_index, x)"},{"Add":" local line = State.lines[line_index]"},{"Add":" local line_cache = State.line_cache[line_index]"},{"Add":" if line_cache.screen_line_starting_posB then"},{"Add":" return"},{"Add":" end"},{"Add":" -- duplicate some logic from Text.draw"},{"Add":" Text.compute_fragmentsB(State, line_index, x)"},{"Add":" line_cache.screen_line_starting_posB = {1}"},{"Add":" local pos = 1"},{"Add":" for _, f in ipairs(line_cache.fragmentsB) do"},{"Add":" local frag, frag_text = f.data, f.text"},{"Add":" -- render fragment"},{"Add":" local frag_width = App.width(frag_text)"},{"Add":" if x + frag_width > State.right then"},{"Add":" x = State.left"},{"Add":" table.insert(line_cache.screen_line_starting_posB, pos)"},{"Add":" end"},{"Add":" x = x + frag_width"},{"Add":" local frag_len = utf8.len(frag)"},{"Add":" pos = pos + frag_len"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.compute_fragmentsB(State, line_index, x)"},{"Add":"--? print('compute_fragmentsB', line_index, 'between', x, State.right)"},{"Add":" local line = State.lines[line_index]"},{"Add":" local line_cache = State.line_cache[line_index]"},{"Add":" if line_cache.fragmentsB then"},{"Add":" return"},{"Add":" end"},{"Add":" line_cache.fragmentsB = {}"},{"Add":" -- try to wrap at word boundaries"},{"Add":" for frag in line.dataB:gmatch('%S*%s*') do"},{"Add":" local frag_text = App.newText(love.graphics.getFont(), frag)"},{"Add":" local frag_width = App.width(frag_text)"},{"Add":"--? print('x: '..tostring(x)..'; '..tostring(State.right-x)..'px to go')"},{"Add":" while x + frag_width > State.right do"},{"Add":"--? print(('checking whether to split fragment ^%s$ of width %d when rendering from %d'):format(frag, frag_width, x))"},{"Add":" if (x-State.left) < 0.8 * (State.right-State.left) then"},{"Add":"--? print('splitting')"},{"Add":" -- long word; chop it at some letter"},{"Add":" -- We're not going to reimplement TeX here."},{"Add":" local bpos = Text.nearest_pos_less_than(frag, State.right - x)"},{"Add":"--? print('bpos', bpos)"},{"Add":" if bpos == 0 then break end -- avoid infinite loop when window is too narrow"},{"Add":" local boffset = Text.offset(frag, bpos+1) -- byte _after_ bpos"},{"Add":"--? print('space for '..tostring(bpos)..' graphemes, '..tostring(boffset-1)..' bytes')"},{"Add":" local frag1 = string.sub(frag, 1, boffset-1)"},{"Add":" local frag1_text = App.newText(love.graphics.getFont(), frag1)"},{"Add":" local frag1_width = App.width(frag1_text)"},{"Add":"--? print('extracting ^'..frag1..'$ of width '..tostring(frag1_width)..'px')"},{"Add":" assert(x + frag1_width <= State.right)"},{"Add":" table.insert(line_cache.fragmentsB, {data=frag1, text=frag1_text})"},{"Add":" frag = string.sub(frag, boffset)"},{"Add":" frag_text = App.newText(love.graphics.getFont(), frag)"},{"Add":" frag_width = App.width(frag_text)"},{"Add":" end"},{"Add":" x = State.left -- new line"},{"Add":" end"},{"Add":" if #frag > 0 then"},{"Add":"--? print('inserting ^'..frag..'$ of width '..tostring(frag_width)..'px')"},{"Add":" table.insert(line_cache.fragmentsB, {data=frag, text=frag_text})"},{"Add":" end"},{"Add":" x = x + frag_width"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.textinput(State, t)"},{"Add":" if App.mouse_down(1) then return end"},{"Add":" if App.ctrl_down() or App.alt_down() or App.cmd_down() then return end"},{"Add":" local before = snapshot(State, State.cursor1.line)"},{"Add":"--? print(State.screen_top1.line, State.screen_top1.pos, State.cursor1.line, State.cursor1.pos, State.screen_bottom1.line, State.screen_bottom1.pos)"},{"Add":" Text.insert_at_cursor(State, t)"},{"Add":" if State.cursor_y > App.screen.height - State.line_height then"},{"Add":" Text.populate_screen_line_starting_pos(State, State.cursor1.line)"},{"Add":" Text.snap_cursor_to_bottom_of_screen(State, State.left, State.right)"},{"Add":" end"},{"Add":" record_undo_event(State, {before=before, after=snapshot(State, State.cursor1.line)})"},{"Add":"end"},{"Add":""},{"Add":"function Text.insert_at_cursor(State, t)"},{"Add":" if State.cursor1.pos then"},{"Add":" local byte_offset = Text.offset(State.lines[State.cursor1.line].data, State.cursor1.pos)"},{"Add":" State.lines[State.cursor1.line].data = string.sub(State.lines[State.cursor1.line].data, 1, byte_offset-1)..t..string.sub(State.lines[State.cursor1.line].data, byte_offset)"},{"Add":" Text.clear_screen_line_cache(State, State.cursor1.line)"},{"Add":" State.cursor1.pos = State.cursor1.pos+1"},{"Add":" else"},{"Add":" assert(State.cursor1.posB)"},{"Add":" local byte_offset = Text.offset(State.lines[State.cursor1.line].dataB, State.cursor1.posB)"},{"Add":" State.lines[State.cursor1.line].dataB = string.sub(State.lines[State.cursor1.line].dataB, 1, byte_offset-1)..t..string.sub(State.lines[State.cursor1.line].dataB, byte_offset)"},{"Add":" Text.clear_screen_line_cache(State, State.cursor1.line)"},{"Add":" State.cursor1.posB = State.cursor1.posB+1"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"-- Don't handle any keys here that would trigger love.textinput above."},{"Add":"function Text.keychord_pressed(State, chord)"},{"Add":"--? print('chord', chord)"},{"Add":" --== shortcuts that mutate text"},{"Add":" if chord == 'return' then"},{"Add":" local before_line = State.cursor1.line"},{"Add":" local before = snapshot(State, before_line)"},{"Add":" Text.insert_return(State)"},{"Add":" if State.cursor_y > App.screen.height - State.line_height then"},{"Add":" Text.snap_cursor_to_bottom_of_screen(State, State.left, State.right)"},{"Add":" end"},{"Add":" schedule_save(State)"},{"Add":" record_undo_event(State, {before=before, after=snapshot(State, before_line, State.cursor1.line)})"},{"Add":" elseif chord == 'tab' then"},{"Add":" local before = snapshot(State, State.cursor1.line)"},{"Add":"--? print(State.screen_top1.line, State.screen_top1.pos, State.cursor1.line, State.cursor1.pos, State.screen_bottom1.line, State.screen_bottom1.pos)"},{"Add":" Text.insert_at_cursor(State, '\\t')"},{"Add":" if State.cursor_y > App.screen.height - State.line_height then"},{"Add":" Text.populate_screen_line_starting_pos(State, State.cursor1.line)"},{"Add":" Text.snap_cursor_to_bottom_of_screen(State, State.left, State.right)"},{"Add":"--? print('=>', State.screen_top1.line, State.screen_top1.pos, State.cursor1.line, State.cursor1.pos, State.screen_bottom1.line, State.screen_bottom1.pos)"},{"Add":" end"},{"Add":" schedule_save(State)"},{"Add":" record_undo_event(State, {before=before, after=snapshot(State, State.cursor1.line)})"},{"Add":" elseif chord == 'backspace' then"},{"Add":" local before"},{"Add":" if State.cursor1.pos and State.cursor1.pos > 1 then"},{"Add":" before = snapshot(State, State.cursor1.line)"},{"Add":" local byte_start = utf8.offset(State.lines[State.cursor1.line].data, State.cursor1.pos-1)"},{"Add":" local byte_end = utf8.offset(State.lines[State.cursor1.line].data, State.cursor1.pos)"},{"Add":" if byte_start then"},{"Add":" if byte_end then"},{"Add":" State.lines[State.cursor1.line].data = string.sub(State.lines[State.cursor1.line].data, 1, byte_start-1)..string.sub(State.lines[State.cursor1.line].data, byte_end)"},{"Add":" else"},{"Add":" State.lines[State.cursor1.line].data = string.sub(State.lines[State.cursor1.line].data, 1, byte_start-1)"},{"Add":" end"},{"Add":" State.cursor1.pos = State.cursor1.pos-1"},{"Add":" end"},{"Add":" elseif State.cursor1.posB then"},{"Add":" if State.cursor1.posB > 1 then"},{"Add":" before = snapshot(State, State.cursor1.line)"},{"Add":" local byte_start = utf8.offset(State.lines[State.cursor1.line].dataB, State.cursor1.posB-1)"},{"Add":" local byte_end = utf8.offset(State.lines[State.cursor1.line].dataB, State.cursor1.posB)"},{"Add":" if byte_start then"},{"Add":" if byte_end then"},{"Add":" State.lines[State.cursor1.line].dataB = string.sub(State.lines[State.cursor1.line].dataB, 1, byte_start-1)..string.sub(State.lines[State.cursor1.line].dataB, byte_end)"},{"Add":" else"},{"Add":" State.lines[State.cursor1.line].dataB = string.sub(State.lines[State.cursor1.line].dataB, 1, byte_start-1)"},{"Add":" end"},{"Add":" State.cursor1.posB = State.cursor1.posB-1"},{"Add":" end"},{"Add":" else"},{"Add":" -- refuse to delete past beginning of side B"},{"Add":" end"},{"Add":" elseif State.cursor1.line > 1 then"},{"Add":" before = snapshot(State, State.cursor1.line-1, State.cursor1.line)"},{"Add":" -- join lines"},{"Add":" State.cursor1.pos = utf8.len(State.lines[State.cursor1.line-1].data)+1"},{"Add":" State.lines[State.cursor1.line-1].data = State.lines[State.cursor1.line-1].data..State.lines[State.cursor1.line].data"},{"Add":" table.remove(State.lines, State.cursor1.line)"},{"Add":" table.remove(State.line_cache, State.cursor1.line)"},{"Add":" State.cursor1.line = State.cursor1.line-1"},{"Add":" end"},{"Add":" if State.screen_top1.line > #State.lines then"},{"Add":" Text.populate_screen_line_starting_pos(State, #State.lines)"},{"Add":" local line_cache = State.line_cache[#State.line_cache]"},{"Add":" State.screen_top1 = {line=#State.lines, pos=line_cache.screen_line_starting_pos[#line_cache.screen_line_starting_pos]}"},{"Add":" elseif Text.lt1(State.cursor1, State.screen_top1) then"},{"Add":" local top2 = Text.to2(State, State.screen_top1)"},{"Add":" top2 = Text.previous_screen_line(State, top2, State.left, State.right)"},{"Add":" State.screen_top1 = Text.to1(State, top2)"},{"Add":" Text.redraw_all(State) -- if we're scrolling, reclaim all fragments to avoid memory leaks"},{"Add":" end"},{"Add":" Text.clear_screen_line_cache(State, State.cursor1.line)"},{"Add":" assert(Text.le1(State.screen_top1, State.cursor1))"},{"Add":" schedule_save(State)"},{"Add":" record_undo_event(State, {before=before, after=snapshot(State, State.cursor1.line)})"},{"Add":" elseif chord == 'delete' then"},{"Add":" local before"},{"Add":" if State.cursor1.posB or State.cursor1.pos <= utf8.len(State.lines[State.cursor1.line].data) then"},{"Add":" before = snapshot(State, State.cursor1.line)"},{"Add":" else"},{"Add":" before = snapshot(State, State.cursor1.line, State.cursor1.line+1)"},{"Add":" end"},{"Add":" if State.cursor1.pos and State.cursor1.pos <= utf8.len(State.lines[State.cursor1.line].data) then"},{"Add":" local byte_start = utf8.offset(State.lines[State.cursor1.line].data, State.cursor1.pos)"},{"Add":" local byte_end = utf8.offset(State.lines[State.cursor1.line].data, State.cursor1.pos+1)"},{"Add":" if byte_start then"},{"Add":" if byte_end then"},{"Add":" State.lines[State.cursor1.line].data = string.sub(State.lines[State.cursor1.line].data, 1, byte_start-1)..string.sub(State.lines[State.cursor1.line].data, byte_end)"},{"Add":" else"},{"Add":" State.lines[State.cursor1.line].data = string.sub(State.lines[State.cursor1.line].data, 1, byte_start-1)"},{"Add":" end"},{"Add":" -- no change to State.cursor1.pos"},{"Add":" end"},{"Add":" elseif State.cursor1.posB then"},{"Add":" if State.cursor1.posB <= utf8.len(State.lines[State.cursor1.line].dataB) then"},{"Add":" local byte_start = utf8.offset(State.lines[State.cursor1.line].dataB, State.cursor1.posB)"},{"Add":" local byte_end = utf8.offset(State.lines[State.cursor1.line].dataB, State.cursor1.posB+1)"},{"Add":" if byte_start then"},{"Add":" if byte_end then"},{"Add":" State.lines[State.cursor1.line].dataB = string.sub(State.lines[State.cursor1.line].dataB, 1, byte_start-1)..string.sub(State.lines[State.cursor1.line].dataB, byte_end)"},{"Add":" else"},{"Add":" State.lines[State.cursor1.line].dataB = string.sub(State.lines[State.cursor1.line].dataB, 1, byte_start-1)"},{"Add":" end"},{"Add":" -- no change to State.cursor1.pos"},{"Add":" end"},{"Add":" else"},{"Add":" -- refuse to delete past end of side B"},{"Add":" end"},{"Add":" elseif State.cursor1.line < #State.lines then"},{"Add":" -- join lines"},{"Add":" State.lines[State.cursor1.line].data = State.lines[State.cursor1.line].data..State.lines[State.cursor1.line+1].data"},{"Add":" -- delete side B on first line"},{"Add":" State.lines[State.cursor1.line].dataB = State.lines[State.cursor1.line+1].dataB"},{"Add":" table.remove(State.lines, State.cursor1.line+1)"},{"Add":" table.remove(State.line_cache, State.cursor1.line+1)"},{"Add":" end"},{"Add":" Text.clear_screen_line_cache(State, State.cursor1.line)"},{"Add":" schedule_save(State)"},{"Add":" record_undo_event(State, {before=before, after=snapshot(State, State.cursor1.line)})"},{"Add":" --== shortcuts that move the cursor"},{"Add":" elseif chord == 'left' then"},{"Add":" Text.left(State)"},{"Add":" elseif chord == 'right' then"},{"Add":" Text.right(State)"},{"Add":" elseif chord == 'S-left' then"},{"Add":" Text.left(State)"},{"Add":" elseif chord == 'S-right' then"},{"Add":" Text.right(State)"},{"Add":" -- C- hotkeys reserved for drawings, so we'll use M-"},{"Add":" elseif chord == 'M-left' then"},{"Add":" Text.word_left(State)"},{"Add":" elseif chord == 'M-right' then"},{"Add":" Text.word_right(State)"},{"Add":" elseif chord == 'M-S-left' then"},{"Add":" Text.word_left(State)"},{"Add":" elseif chord == 'M-S-right' then"},{"Add":" Text.word_right(State)"},{"Add":" elseif chord == 'home' then"},{"Add":" Text.start_of_line(State)"},{"Add":" elseif chord == 'end' then"},{"Add":" Text.end_of_line(State)"},{"Add":" elseif chord == 'S-home' then"},{"Add":" Text.start_of_line(State)"},{"Add":" elseif chord == 'S-end' then"},{"Add":" Text.end_of_line(State)"},{"Add":" elseif chord == 'up' then"},{"Add":" Text.up(State)"},{"Add":" elseif chord == 'down' then"},{"Add":" Text.down(State)"},{"Add":" elseif chord == 'S-up' then"},{"Add":" Text.up(State)"},{"Add":" elseif chord == 'S-down' then"},{"Add":" Text.down(State)"},{"Add":" elseif chord == 'pageup' then"},{"Add":" Text.pageup(State)"},{"Add":" elseif chord == 'pagedown' then"},{"Add":" Text.pagedown(State)"},{"Add":" elseif chord == 'S-pageup' then"},{"Add":" Text.pageup(State)"},{"Add":" elseif chord == 'S-pagedown' then"},{"Add":" Text.pagedown(State)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.insert_return(State)"},{"Add":" if State.cursor1.pos then"},{"Add":" -- when inserting a newline, move any B side to the new line"},{"Add":" local byte_offset = Text.offset(State.lines[State.cursor1.line].data, State.cursor1.pos)"},{"Add":" table.insert(State.lines, State.cursor1.line+1, {data=string.sub(State.lines[State.cursor1.line].data, byte_offset), dataB=State.lines[State.cursor1.line].dataB})"},{"Add":" table.insert(State.line_cache, State.cursor1.line+1, {})"},{"Add":" State.lines[State.cursor1.line].data = string.sub(State.lines[State.cursor1.line].data, 1, byte_offset-1)"},{"Add":" State.lines[State.cursor1.line].dataB = nil"},{"Add":" Text.clear_screen_line_cache(State, State.cursor1.line)"},{"Add":" State.cursor1 = {line=State.cursor1.line+1, pos=1}"},{"Add":" else"},{"Add":" -- disable enter when cursor is on the B side"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.pageup(State)"},{"Add":"--? print('pageup')"},{"Add":" -- duplicate some logic from love.draw"},{"Add":" local top2 = Text.to2(State, State.screen_top1)"},{"Add":"--? print(App.screen.height)"},{"Add":" local y = App.screen.height - State.line_height"},{"Add":" while y >= State.top do"},{"Add":"--? print(y, top2.line, top2.screen_line, top2.screen_pos)"},{"Add":" if State.screen_top1.line == 1 and State.screen_top1.pos and State.screen_top1.pos == 1 then break end"},{"Add":" y = y - State.line_height"},{"Add":" top2 = Text.previous_screen_line(State, top2)"},{"Add":" end"},{"Add":" State.screen_top1 = Text.to1(State, top2)"},{"Add":" State.cursor1 = {line=State.screen_top1.line, pos=State.screen_top1.pos, posB=State.screen_top1.posB}"},{"Add":" Text.move_cursor_down_to_next_text_line_while_scrolling_again_if_necessary(State)"},{"Add":"--? print(State.cursor1.line, State.cursor1.pos, State.screen_top1.line, State.screen_top1.pos)"},{"Add":"--? print('pageup end')"},{"Add":"end"},{"Add":""},{"Add":"function Text.pagedown(State)"},{"Add":"--? print('pagedown')"},{"Add":" local bot2 = Text.to2(State, State.screen_bottom1)"},{"Add":" local new_top1 = Text.to1(State, bot2)"},{"Add":" if Text.lt1(State.screen_top1, new_top1) then"},{"Add":" State.screen_top1 = new_top1"},{"Add":" else"},{"Add":" State.screen_top1 = {line=State.screen_bottom1.line, pos=State.screen_bottom1.pos}"},{"Add":" end"},{"Add":"--? print('setting top to', State.screen_top1.line, State.screen_top1.pos)"},{"Add":" State.cursor1 = {line=State.screen_top1.line, pos=State.screen_top1.pos, posB=State.screen_top1.posB}"},{"Add":" Text.move_cursor_down_to_next_text_line_while_scrolling_again_if_necessary(State)"},{"Add":"--? print('top now', State.screen_top1.line)"},{"Add":" Text.redraw_all(State) -- if we're scrolling, reclaim all fragments to avoid memory leaks"},{"Add":"--? print('pagedown end')"},{"Add":"end"},{"Add":""},{"Add":"function Text.up(State)"},{"Add":" if State.cursor1.pos then"},{"Add":" Text.upA(State)"},{"Add":" else"},{"Add":" Text.upB(State)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.upA(State)"},{"Add":"--? print('up', State.cursor1.line, State.cursor1.pos, State.screen_top1.line, State.screen_top1.pos)"},{"Add":" local screen_line_starting_pos, screen_line_index = Text.pos_at_start_of_screen_line(State, State.cursor1)"},{"Add":" if screen_line_starting_pos == 1 then"},{"Add":"--? print('cursor is at first screen line of its line')"},{"Add":" -- line is done; skip to previous text line"},{"Add":" if State.cursor1.line > 1 then"},{"Add":"--? print('found previous text line')"},{"Add":" State.cursor1 = {line=State.cursor1.line-1, pos=nil}"},{"Add":" Text.populate_screen_line_starting_pos(State, State.cursor1.line)"},{"Add":" -- previous text line found, pick its final screen line"},{"Add":"--? print('has multiple screen lines')"},{"Add":" local screen_line_starting_pos = State.line_cache[State.cursor1.line].screen_line_starting_pos"},{"Add":"--? print(#screen_line_starting_pos)"},{"Add":" screen_line_starting_pos = screen_line_starting_pos[#screen_line_starting_pos]"},{"Add":" local screen_line_starting_byte_offset = Text.offset(State.lines[State.cursor1.line].data, screen_line_starting_pos)"},{"Add":" local s = string.sub(State.lines[State.cursor1.line].data, screen_line_starting_byte_offset)"},{"Add":" State.cursor1.pos = screen_line_starting_pos + Text.nearest_cursor_pos(s, State.cursor_x, State.left) - 1"},{"Add":" end"},{"Add":" else"},{"Add":" -- move up one screen line in current line"},{"Add":" assert(screen_line_index > 1)"},{"Add":" local new_screen_line_starting_pos = State.line_cache[State.cursor1.line].screen_line_starting_pos[screen_line_index-1]"},{"Add":" local new_screen_line_starting_byte_offset = Text.offset(State.lines[State.cursor1.line].data, new_screen_line_starting_pos)"},{"Add":" local s = string.sub(State.lines[State.cursor1.line].data, new_screen_line_starting_byte_offset)"},{"Add":" State.cursor1.pos = new_screen_line_starting_pos + Text.nearest_cursor_pos(s, State.cursor_x, State.left) - 1"},{"Add":"--? print('cursor pos is now '..tostring(State.cursor1.pos))"},{"Add":" end"},{"Add":" if Text.lt1(State.cursor1, State.screen_top1) then"},{"Add":" local top2 = Text.to2(State, State.screen_top1)"},{"Add":" top2 = Text.previous_screen_line(State, top2)"},{"Add":" State.screen_top1 = Text.to1(State, top2)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.upB(State)"},{"Add":" local line_cache = State.line_cache[State.cursor1.line]"},{"Add":" local screen_line_starting_posB, screen_line_indexB = Text.pos_at_start_of_screen_lineB(State, State.cursor1)"},{"Add":" assert(screen_line_indexB >= 1)"},{"Add":" if screen_line_indexB == 1 then"},{"Add":" -- move to A side of previous line"},{"Add":" if State.cursor1.line > 1 then"},{"Add":" State.cursor1.line = State.cursor1.line-1"},{"Add":" State.cursor1.posB = nil"},{"Add":" Text.populate_screen_line_starting_pos(State, State.cursor1.line)"},{"Add":" local prev_line_cache = State.line_cache[State.cursor1.line]"},{"Add":" local prev_screen_line_starting_pos = prev_line_cache.screen_line_starting_pos[#prev_line_cache.screen_line_starting_pos]"},{"Add":" local prev_screen_line_starting_byte_offset = Text.offset(State.lines[State.cursor1.line].data, prev_screen_line_starting_pos)"},{"Add":" local s = string.sub(State.lines[State.cursor1.line].data, prev_screen_line_starting_byte_offset)"},{"Add":" State.cursor1.pos = prev_screen_line_starting_pos + Text.nearest_cursor_pos(s, State.cursor_x, State.left) - 1"},{"Add":" end"},{"Add":" elseif screen_line_indexB == 2 then"},{"Add":" -- all-B screen-line to potentially A+B screen-line"},{"Add":" local xA = Margin_left + Text.screen_line_width(State, State.cursor1.line, #line_cache.screen_line_starting_pos) + AB_padding"},{"Add":" if State.cursor_x < xA then"},{"Add":" State.cursor1.posB = nil"},{"Add":" Text.populate_screen_line_starting_pos(State, State.cursor1.line)"},{"Add":" local new_screen_line_starting_pos = line_cache.screen_line_starting_pos[#line_cache.screen_line_starting_pos]"},{"Add":" local new_screen_line_starting_byte_offset = Text.offset(State.lines[State.cursor1.line].data, new_screen_line_starting_pos)"},{"Add":" local s = string.sub(State.lines[State.cursor1.line].data, new_screen_line_starting_byte_offset)"},{"Add":" State.cursor1.pos = new_screen_line_starting_pos + Text.nearest_cursor_pos(s, State.cursor_x, State.left) - 1"},{"Add":" else"},{"Add":" Text.populate_screen_line_starting_posB(State, State.cursor1.line)"},{"Add":" local new_screen_line_starting_posB = line_cache.screen_line_starting_posB[screen_line_indexB-1]"},{"Add":" local new_screen_line_starting_byte_offsetB = Text.offset(State.lines[State.cursor1.line].dataB, new_screen_line_starting_posB)"},{"Add":" local s = string.sub(State.lines[State.cursor1.line].dataB, new_screen_line_starting_byte_offsetB)"},{"Add":" State.cursor1.posB = new_screen_line_starting_posB + Text.nearest_cursor_pos(s, State.cursor_x-xA, State.left) - 1"},{"Add":" end"},{"Add":" else"},{"Add":" assert(screen_line_indexB > 2)"},{"Add":" -- all-B screen-line to all-B screen-line"},{"Add":" Text.populate_screen_line_starting_posB(State, State.cursor1.line)"},{"Add":" local new_screen_line_starting_posB = line_cache.screen_line_starting_posB[screen_line_indexB-1]"},{"Add":" local new_screen_line_starting_byte_offsetB = Text.offset(State.lines[State.cursor1.line].dataB, new_screen_line_starting_posB)"},{"Add":" local s = string.sub(State.lines[State.cursor1.line].dataB, new_screen_line_starting_byte_offsetB)"},{"Add":" State.cursor1.posB = new_screen_line_starting_posB + Text.nearest_cursor_pos(s, State.cursor_x, State.left) - 1"},{"Add":" end"},{"Add":" if Text.lt1(State.cursor1, State.screen_top1) then"},{"Add":" local top2 = Text.to2(State, State.screen_top1)"},{"Add":" top2 = Text.previous_screen_line(State, top2)"},{"Add":" State.screen_top1 = Text.to1(State, top2)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"-- cursor on final screen line (A or B side) => goes to next screen line on A side"},{"Add":"-- cursor on A side => move down one screen line (A side) in current line"},{"Add":"-- cursor on B side => move down one screen line (B side) in current line"},{"Add":"function Text.down(State)"},{"Add":"--? print('down', State.cursor1.line, State.cursor1.pos, State.screen_top1.line, State.screen_top1.pos, State.screen_bottom1.line, State.screen_bottom1.pos)"},{"Add":" if Text.cursor_at_final_screen_line(State) then"},{"Add":" -- line is done, skip to next text line"},{"Add":"--? print('cursor at final screen line of its line')"},{"Add":" if State.cursor1.line < #State.lines then"},{"Add":" State.cursor1 = {"},{"Add":" line = State.cursor1.line+1,"},{"Add":" pos = Text.nearest_cursor_pos(State.lines[State.cursor1.line+1].data, State.cursor_x, State.left)"},{"Add":" }"},{"Add":"--? print(State.cursor1.pos)"},{"Add":" end"},{"Add":" if State.cursor1.line > State.screen_bottom1.line then"},{"Add":"--? print('screen top before:', State.screen_top1.line, State.screen_top1.pos)"},{"Add":"--? print('scroll up preserving cursor')"},{"Add":" Text.snap_cursor_to_bottom_of_screen(State)"},{"Add":"--? print('screen top after:', State.screen_top1.line, State.screen_top1.pos)"},{"Add":" end"},{"Add":" elseif State.cursor1.pos then"},{"Add":" -- move down one screen line (A side) in current line"},{"Add":" local scroll_down = Text.le1(State.screen_bottom1, State.cursor1)"},{"Add":"--? print('cursor is NOT at final screen line of its line')"},{"Add":" local screen_line_starting_pos, screen_line_index = Text.pos_at_start_of_screen_line(State, State.cursor1)"},{"Add":" Text.populate_screen_line_starting_pos(State, State.cursor1.line)"},{"Add":" local new_screen_line_starting_pos = State.line_cache[State.cursor1.line].screen_line_starting_pos[screen_line_index+1]"},{"Add":"--? print('switching pos of screen line at cursor from '..tostring(screen_line_starting_pos)..' to '..tostring(new_screen_line_starting_pos))"},{"Add":" local new_screen_line_starting_byte_offset = Text.offset(State.lines[State.cursor1.line].data, new_screen_line_starting_pos)"},{"Add":" local s = string.sub(State.lines[State.cursor1.line].data, new_screen_line_starting_byte_offset)"},{"Add":" State.cursor1.pos = new_screen_line_starting_pos + Text.nearest_cursor_pos(s, State.cursor_x, State.left) - 1"},{"Add":"--? print('cursor pos is now', State.cursor1.line, State.cursor1.pos)"},{"Add":" if scroll_down then"},{"Add":"--? print('scroll up preserving cursor')"},{"Add":" Text.snap_cursor_to_bottom_of_screen(State)"},{"Add":"--? print('screen top after:', State.screen_top1.line, State.screen_top1.pos)"},{"Add":" end"},{"Add":" else"},{"Add":" -- move down one screen line (B side) in current line"},{"Add":" local scroll_down = false"},{"Add":" if Text.le1(State.screen_bottom1, State.cursor1) then"},{"Add":" scroll_down = true"},{"Add":" end"},{"Add":" local cursor_line = State.lines[State.cursor1.line]"},{"Add":" local cursor_line_cache = State.line_cache[State.cursor1.line]"},{"Add":" local cursor2 = Text.to2(State, State.cursor1)"},{"Add":" assert(cursor2.screen_lineB < #cursor_line_cache.screen_line_starting_posB)"},{"Add":" local screen_line_starting_posB, screen_line_indexB = Text.pos_at_start_of_screen_lineB(State, State.cursor1)"},{"Add":" Text.populate_screen_line_starting_posB(State, State.cursor1.line)"},{"Add":" local new_screen_line_starting_posB = cursor_line_cache.screen_line_starting_posB[screen_line_indexB+1]"},{"Add":" local new_screen_line_starting_byte_offsetB = Text.offset(cursor_line.dataB, new_screen_line_starting_posB)"},{"Add":" local s = string.sub(cursor_line.dataB, new_screen_line_starting_byte_offsetB)"},{"Add":" State.cursor1.posB = new_screen_line_starting_posB + Text.nearest_cursor_pos(s, State.cursor_x, State.left) - 1"},{"Add":" if scroll_down then"},{"Add":" Text.snap_cursor_to_bottom_of_screen(State)"},{"Add":" end"},{"Add":" end"},{"Add":"--? print('=>', State.cursor1.line, State.cursor1.pos, State.screen_top1.line, State.screen_top1.pos, State.screen_bottom1.line, State.screen_bottom1.pos)"},{"Add":"end"},{"Add":""},{"Add":"function Text.start_of_line(State)"},{"Add":" if State.cursor1.pos then"},{"Add":" State.cursor1.pos = 1"},{"Add":" else"},{"Add":" State.cursor1.posB = 1"},{"Add":" end"},{"Add":" if Text.lt1(State.cursor1, State.screen_top1) then"},{"Add":" State.screen_top1 = {line=State.cursor1.line, pos=1} -- copy"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.end_of_line(State)"},{"Add":" if State.cursor1.pos then"},{"Add":" State.cursor1.pos = utf8.len(State.lines[State.cursor1.line].data) + 1"},{"Add":" else"},{"Add":" State.cursor1.posB = utf8.len(State.lines[State.cursor1.line].dataB) + 1"},{"Add":" end"},{"Add":" if Text.cursor_out_of_screen(State) then"},{"Add":" Text.snap_cursor_to_bottom_of_screen(State)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.word_left(State)"},{"Add":" -- we can cross the fold, so check side A/B one level down"},{"Add":" Text.skip_whitespace_left(State)"},{"Add":" Text.left(State)"},{"Add":" Text.skip_non_whitespace_left(State)"},{"Add":"end"},{"Add":""},{"Add":"function Text.word_right(State)"},{"Add":" -- we can cross the fold, so check side A/B one level down"},{"Add":" Text.skip_whitespace_right(State)"},{"Add":" Text.right(State)"},{"Add":" Text.skip_non_whitespace_right(State)"},{"Add":" if Text.cursor_out_of_screen(State) then"},{"Add":" Text.snap_cursor_to_bottom_of_screen(State)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.skip_whitespace_left(State)"},{"Add":" if State.cursor1.pos then"},{"Add":" Text.skip_whitespace_leftA(State)"},{"Add":" else"},{"Add":" Text.skip_whitespace_leftB(State)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.skip_non_whitespace_left(State)"},{"Add":" if State.cursor1.pos then"},{"Add":" Text.skip_non_whitespace_leftA(State)"},{"Add":" else"},{"Add":" Text.skip_non_whitespace_leftB(State)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.skip_whitespace_leftA(State)"},{"Add":" while true do"},{"Add":" if State.cursor1.pos == 1 then"},{"Add":" break"},{"Add":" end"},{"Add":" if Text.match(State.lines[State.cursor1.line].data, State.cursor1.pos-1, '%S') then"},{"Add":" break"},{"Add":" end"},{"Add":" Text.left(State)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.skip_whitespace_leftB(State)"},{"Add":" while true do"},{"Add":" if State.cursor1.posB == 1 then"},{"Add":" break"},{"Add":" end"},{"Add":" if Text.match(State.lines[State.cursor1.line].dataB, State.cursor1.posB-1, '%S') then"},{"Add":" break"},{"Add":" end"},{"Add":" Text.left(State)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.skip_non_whitespace_leftA(State)"},{"Add":" while true do"},{"Add":" if State.cursor1.pos == 1 then"},{"Add":" break"},{"Add":" end"},{"Add":" assert(State.cursor1.pos > 1)"},{"Add":" if Text.match(State.lines[State.cursor1.line].data, State.cursor1.pos-1, '%s') then"},{"Add":" break"},{"Add":" end"},{"Add":" Text.left(State)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.skip_non_whitespace_leftB(State)"},{"Add":" while true do"},{"Add":" if State.cursor1.posB == 1 then"},{"Add":" break"},{"Add":" end"},{"Add":" assert(State.cursor1.posB > 1)"},{"Add":" if Text.match(State.lines[State.cursor1.line].dataB, State.cursor1.posB-1, '%s') then"},{"Add":" break"},{"Add":" end"},{"Add":" Text.left(State)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.skip_whitespace_right(State)"},{"Add":" if State.cursor1.pos then"},{"Add":" Text.skip_whitespace_rightA(State)"},{"Add":" else"},{"Add":" Text.skip_whitespace_rightB(State)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.skip_non_whitespace_right(State)"},{"Add":" if State.cursor1.pos then"},{"Add":" Text.skip_non_whitespace_rightA(State)"},{"Add":" else"},{"Add":" Text.skip_non_whitespace_rightB(State)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.skip_whitespace_rightA(State)"},{"Add":" while true do"},{"Add":" if State.cursor1.pos > utf8.len(State.lines[State.cursor1.line].data) then"},{"Add":" break"},{"Add":" end"},{"Add":" if Text.match(State.lines[State.cursor1.line].data, State.cursor1.pos, '%S') then"},{"Add":" break"},{"Add":" end"},{"Add":" Text.right_without_scroll(State)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.skip_whitespace_rightB(State)"},{"Add":" while true do"},{"Add":" if State.cursor1.posB > utf8.len(State.lines[State.cursor1.line].dataB) then"},{"Add":" break"},{"Add":" end"},{"Add":" if Text.match(State.lines[State.cursor1.line].dataB, State.cursor1.posB, '%S') then"},{"Add":" break"},{"Add":" end"},{"Add":" Text.right_without_scroll(State)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.skip_non_whitespace_rightA(State)"},{"Add":" while true do"},{"Add":" if State.cursor1.pos > utf8.len(State.lines[State.cursor1.line].data) then"},{"Add":" break"},{"Add":" end"},{"Add":" if Text.match(State.lines[State.cursor1.line].data, State.cursor1.pos, '%s') then"},{"Add":" break"},{"Add":" end"},{"Add":" Text.right_without_scroll(State)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.skip_non_whitespace_rightB(State)"},{"Add":" while true do"},{"Add":" if State.cursor1.posB > utf8.len(State.lines[State.cursor1.line].dataB) then"},{"Add":" break"},{"Add":" end"},{"Add":" if Text.match(State.lines[State.cursor1.line].dataB, State.cursor1.posB, '%s') then"},{"Add":" break"},{"Add":" end"},{"Add":" Text.right_without_scroll(State)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.match(s, pos, pat)"},{"Add":" local start_offset = Text.offset(s, pos)"},{"Add":" assert(start_offset)"},{"Add":" local end_offset = Text.offset(s, pos+1)"},{"Add":" assert(end_offset > start_offset)"},{"Add":" local curr = s:sub(start_offset, end_offset-1)"},{"Add":" return curr:match(pat)"},{"Add":"end"},{"Add":""},{"Add":"function Text.left(State)"},{"Add":" if State.cursor1.pos then"},{"Add":" Text.leftA(State)"},{"Add":" else"},{"Add":" Text.leftB(State)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.leftA(State)"},{"Add":" if State.cursor1.pos > 1 then"},{"Add":" State.cursor1.pos = State.cursor1.pos-1"},{"Add":" elseif State.cursor1.line > 1 then"},{"Add":" State.cursor1 = {"},{"Add":" line = State.cursor1.line-1,"},{"Add":" pos = utf8.len(State.lines[State.cursor1.line-1].data) + 1,"},{"Add":" }"},{"Add":" end"},{"Add":" if Text.lt1(State.cursor1, State.screen_top1) then"},{"Add":" local top2 = Text.to2(State, State.screen_top1)"},{"Add":" top2 = Text.previous_screen_line(State, top2)"},{"Add":" State.screen_top1 = Text.to1(State, top2)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.leftB(State)"},{"Add":" if State.cursor1.posB > 1 then"},{"Add":" State.cursor1.posB = State.cursor1.posB-1"},{"Add":" else"},{"Add":" -- overflow back into A side"},{"Add":" State.cursor1.posB = nil"},{"Add":" State.cursor1.pos = utf8.len(State.lines[State.cursor1.line].data) + 1"},{"Add":" end"},{"Add":" if Text.lt1(State.cursor1, State.screen_top1) then"},{"Add":" local top2 = Text.to2(State, State.screen_top1)"},{"Add":" top2 = Text.previous_screen_line(State, top2)"},{"Add":" State.screen_top1 = Text.to1(State, top2)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.right(State)"},{"Add":" Text.right_without_scroll(State)"},{"Add":" if Text.cursor_out_of_screen(State) then"},{"Add":" Text.snap_cursor_to_bottom_of_screen(State)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.right_without_scroll(State)"},{"Add":" if State.cursor1.pos then"},{"Add":" Text.right_without_scrollA(State)"},{"Add":" else"},{"Add":" Text.right_without_scrollB(State)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.right_without_scrollA(State)"},{"Add":" if State.cursor1.pos <= utf8.len(State.lines[State.cursor1.line].data) then"},{"Add":" State.cursor1.pos = State.cursor1.pos+1"},{"Add":" elseif State.cursor1.line <= #State.lines-1 then"},{"Add":" State.cursor1 = {line=State.cursor1.line+1, pos=1}"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.right_without_scrollB(State)"},{"Add":" if State.cursor1.posB <= utf8.len(State.lines[State.cursor1.line].dataB) then"},{"Add":" State.cursor1.posB = State.cursor1.posB+1"},{"Add":" elseif State.cursor1.line <= #State.lines-1 then"},{"Add":" -- overflow back into A side"},{"Add":" State.cursor1 = {line=State.cursor1.line+1, pos=1}"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.pos_at_start_of_screen_line(State, loc1)"},{"Add":" Text.populate_screen_line_starting_pos(State, loc1.line)"},{"Add":" local line_cache = State.line_cache[loc1.line]"},{"Add":" for i=#line_cache.screen_line_starting_pos,1,-1 do"},{"Add":" local spos = line_cache.screen_line_starting_pos[i]"},{"Add":" if spos <= loc1.pos then"},{"Add":" return spos,i"},{"Add":" end"},{"Add":" end"},{"Add":" assert(false)"},{"Add":"end"},{"Add":""},{"Add":"function Text.pos_at_start_of_screen_lineB(State, loc1)"},{"Add":" Text.populate_screen_line_starting_pos(State, loc1.line)"},{"Add":" local line_cache = State.line_cache[loc1.line]"},{"Add":" local x = Margin_left + Text.screen_line_width(State, loc1.line, #line_cache.screen_line_starting_pos) + AB_padding"},{"Add":" Text.populate_screen_line_starting_posB(State, loc1.line, x)"},{"Add":" for i=#line_cache.screen_line_starting_posB,1,-1 do"},{"Add":" local sposB = line_cache.screen_line_starting_posB[i]"},{"Add":" if sposB <= loc1.posB then"},{"Add":" return sposB,i"},{"Add":" end"},{"Add":" end"},{"Add":" assert(false)"},{"Add":"end"},{"Add":""},{"Add":"function Text.cursor_at_final_screen_line(State)"},{"Add":" Text.populate_screen_line_starting_pos(State, State.cursor1.line)"},{"Add":" local line = State.lines[State.cursor1.line]"},{"Add":" local screen_lines = State.line_cache[State.cursor1.line].screen_line_starting_pos"},{"Add":"--? print(screen_lines[#screen_lines], State.cursor1.pos)"},{"Add":" if (not State.expanded and not line.expanded) or"},{"Add":" line.dataB == nil then"},{"Add":" return screen_lines[#screen_lines] <= State.cursor1.pos"},{"Add":" end"},{"Add":" if State.cursor1.pos then"},{"Add":" -- ignore B side"},{"Add":" return screen_lines[#screen_lines] <= State.cursor1.pos"},{"Add":" end"},{"Add":" assert(State.cursor1.posB)"},{"Add":" local line_cache = State.line_cache[State.cursor1.line]"},{"Add":" local x = Margin_left + Text.screen_line_width(State, State.cursor1.line, #line_cache.screen_line_starting_pos) + AB_padding"},{"Add":" Text.populate_screen_line_starting_posB(State, State.cursor1.line, x)"},{"Add":" local screen_lines = State.line_cache[State.cursor1.line].screen_line_starting_posB"},{"Add":" return screen_lines[#screen_lines] <= State.cursor1.posB"},{"Add":"end"},{"Add":""},{"Add":"function Text.move_cursor_down_to_next_text_line_while_scrolling_again_if_necessary(State)"},{"Add":" if State.top > App.screen.height - State.line_height then"},{"Add":"--? print('scroll up')"},{"Add":" Text.snap_cursor_to_bottom_of_screen(State)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"-- should never modify State.cursor1"},{"Add":"function Text.snap_cursor_to_bottom_of_screen(State)"},{"Add":"--? print('to2:', State.cursor1.line, State.cursor1.pos, State.cursor1.posB)"},{"Add":" local top2 = Text.to2(State, State.cursor1)"},{"Add":"--? print('to2: =>', top2.line, top2.screen_line, top2.screen_pos, top2.screen_lineB, top2.screen_posB)"},{"Add":" -- slide to start of screen line"},{"Add":" if top2.screen_pos then"},{"Add":" top2.screen_pos = 1"},{"Add":" else"},{"Add":" assert(top2.screen_posB)"},{"Add":" top2.screen_posB = 1"},{"Add":" end"},{"Add":"--? print('snap', State.screen_top1.line, State.screen_top1.pos, State.screen_top1.posB, State.cursor1.line, State.cursor1.pos, State.cursor1.posB, State.screen_bottom1.line, State.screen_bottom1.pos, State.screen_bottom1.posB)"},{"Add":"--? print('cursor pos '..tostring(State.cursor1.pos)..' is on the #'..tostring(top2.screen_line)..' screen line down')"},{"Add":" local y = App.screen.height - State.line_height"},{"Add":" -- duplicate some logic from love.draw"},{"Add":" while true do"},{"Add":"--? print(y, 'top2:', State.lines[top2.line].data, top2.line, top2.screen_line, top2.screen_pos, top2.screen_lineB, top2.screen_posB)"},{"Add":" if top2.line == 1 and top2.screen_line == 1 then break end"},{"Add":" local h = State.line_height"},{"Add":" if y - h < State.top then"},{"Add":" break"},{"Add":" end"},{"Add":" y = y - h"},{"Add":" top2 = Text.previous_screen_line(State, top2)"},{"Add":" end"},{"Add":"--? print('top2 finally:', top2.line, top2.screen_line, top2.screen_pos)"},{"Add":" State.screen_top1 = Text.to1(State, top2)"},{"Add":"--? print('top1 finally:', State.screen_top1.line, State.screen_top1.pos)"},{"Add":"--? print('snap =>', State.screen_top1.line, State.screen_top1.pos, State.screen_top1.posB, State.cursor1.line, State.cursor1.pos, State.cursor1.posB, State.screen_bottom1.line, State.screen_bottom1.pos, State.screen_bottom1.posB)"},{"Add":" Text.redraw_all(State) -- if we're scrolling, reclaim all fragments to avoid memory leaks"},{"Add":" Foo = true"},{"Add":"end"},{"Add":""},{"Add":"function Text.in_line(State, line_index, x,y)"},{"Add":" local line = State.lines[line_index]"},{"Add":" local line_cache = State.line_cache[line_index]"},{"Add":" if line_cache.starty == nil then return false end -- outside current page"},{"Add":" if y < line_cache.starty then return false end"},{"Add":" local num_screen_lines = 0"},{"Add":" if line_cache.startpos then"},{"Add":" Text.populate_screen_line_starting_pos(State, line_index)"},{"Add":" num_screen_lines = num_screen_lines + #line_cache.screen_line_starting_pos - Text.screen_line_index(line_cache.screen_line_starting_pos, line_cache.startpos) + 1"},{"Add":" end"},{"Add":"--? print('#screenlines after A', num_screen_lines)"},{"Add":" if line.dataB and (State.expanded or line.expanded) then"},{"Add":" local x = Margin_left + Text.screen_line_width(State, line_index, #line_cache.screen_line_starting_pos) + AB_padding"},{"Add":" Text.populate_screen_line_starting_posB(State, line_index, x)"},{"Add":"--? print('B:', x, #line_cache.screen_line_starting_posB)"},{"Add":" if line_cache.startposB then"},{"Add":" num_screen_lines = num_screen_lines + #line_cache.screen_line_starting_posB - Text.screen_line_indexB(line_cache.screen_line_starting_posB, line_cache.startposB) -- no +1; first screen line of B side overlaps with A side"},{"Add":" else"},{"Add":" num_screen_lines = num_screen_lines + #line_cache.screen_line_starting_posB - Text.screen_line_indexB(line_cache.screen_line_starting_posB, 1) -- no +1; first screen line of B side overlaps with A side"},{"Add":" end"},{"Add":" end"},{"Add":"--? print('#screenlines after B', num_screen_lines)"},{"Add":" return y < line_cache.starty + State.line_height*num_screen_lines"},{"Add":"end"},{"Add":""},{"Add":"-- convert mx,my in pixels to schema-1 coordinates"},{"Add":"-- returns: pos, posB"},{"Add":"-- scenarios:"},{"Add":"-- line without B side"},{"Add":"-- line with B side collapsed"},{"Add":"-- line with B side expanded"},{"Add":"-- line starting rendering in A side (startpos ~= nil)"},{"Add":"-- line starting rendering in B side (startposB ~= nil)"},{"Add":"-- my on final screen line of A side"},{"Add":"-- mx to right of A side with no B side"},{"Add":"-- mx to right of A side but left of B side"},{"Add":"-- mx to right of B side"},{"Add":"-- preconditions:"},{"Add":"-- startpos xor startposB"},{"Add":"-- expanded -> dataB"},{"Add":"function Text.to_pos_on_line(State, line_index, mx, my)"},{"Add":" local line = State.lines[line_index]"},{"Add":" local line_cache = State.line_cache[line_index]"},{"Add":" assert(my >= line_cache.starty)"},{"Add":" -- duplicate some logic from Text.draw"},{"Add":" local y = line_cache.starty"},{"Add":"--? print('click', line_index, my, 'with line starting at', y, #line_cache.screen_line_starting_pos) -- , #line_cache.screen_line_starting_posB)"},{"Add":" if line_cache.startpos then"},{"Add":" local start_screen_line_index = Text.screen_line_index(line_cache.screen_line_starting_pos, line_cache.startpos)"},{"Add":" for screen_line_index = start_screen_line_index,#line_cache.screen_line_starting_pos do"},{"Add":" local screen_line_starting_pos = line_cache.screen_line_starting_pos[screen_line_index]"},{"Add":" local screen_line_starting_byte_offset = Text.offset(line.data, screen_line_starting_pos)"},{"Add":"--? print('iter', y, screen_line_index, screen_line_starting_pos, string.sub(line.data, screen_line_starting_byte_offset))"},{"Add":" local nexty = y + State.line_height"},{"Add":" if my < nexty then"},{"Add":" -- On all wrapped screen lines but the final one, clicks past end of"},{"Add":" -- line position cursor on final character of screen line."},{"Add":" -- (The final screen line positions past end of screen line as always.)"},{"Add":" if screen_line_index < #line_cache.screen_line_starting_pos and mx > State.left + Text.screen_line_width(State, line_index, screen_line_index) then"},{"Add":"--? print('past end of non-final line; return')"},{"Add":" return line_cache.screen_line_starting_pos[screen_line_index+1]-1"},{"Add":" end"},{"Add":" local s = string.sub(line.data, screen_line_starting_byte_offset)"},{"Add":"--? print('return', mx, Text.nearest_cursor_pos(s, mx, State.left), '=>', screen_line_starting_pos + Text.nearest_cursor_pos(s, mx, State.left) - 1)"},{"Add":" local screen_line_posA = Text.nearest_cursor_pos(s, mx, State.left)"},{"Add":" if line.dataB == nil then"},{"Add":" -- no B side"},{"Add":" return screen_line_starting_pos + screen_line_posA - 1"},{"Add":" end"},{"Add":" if not State.expanded and not line.expanded then"},{"Add":" -- B side is not expanded"},{"Add":" return screen_line_starting_pos + screen_line_posA - 1"},{"Add":" end"},{"Add":" local lenA = utf8.len(s)"},{"Add":" if screen_line_posA < lenA then"},{"Add":" -- mx is within A side"},{"Add":" return screen_line_starting_pos + screen_line_posA - 1"},{"Add":" end"},{"Add":" local max_xA = State.left+Text.x(s, lenA+1)"},{"Add":" if mx < max_xA + AB_padding then"},{"Add":" -- mx is in the space between A and B side"},{"Add":" return screen_line_starting_pos + screen_line_posA - 1"},{"Add":" end"},{"Add":" mx = mx - max_xA - AB_padding"},{"Add":" local screen_line_posB = Text.nearest_cursor_pos(line.dataB, mx, --[[no left margin]] 0)"},{"Add":" return nil, screen_line_posB"},{"Add":" end"},{"Add":" y = nexty"},{"Add":" end"},{"Add":" end"},{"Add":" -- look in screen lines composed entirely of the B side"},{"Add":" assert(State.expanded or line.expanded)"},{"Add":" local start_screen_line_indexB"},{"Add":" if line_cache.startposB then"},{"Add":" start_screen_line_indexB = Text.screen_line_indexB(line_cache.screen_line_starting_posB, line_cache.startposB)"},{"Add":" else"},{"Add":" start_screen_line_indexB = 2 -- skip the first line of side B, which we checked above"},{"Add":" end"},{"Add":" for screen_line_indexB = start_screen_line_indexB,#line_cache.screen_line_starting_posB do"},{"Add":" local screen_line_starting_posB = line_cache.screen_line_starting_posB[screen_line_indexB]"},{"Add":" local screen_line_starting_byte_offsetB = Text.offset(line.dataB, screen_line_starting_posB)"},{"Add":"--? print('iter2', y, screen_line_indexB, screen_line_starting_posB, string.sub(line.dataB, screen_line_starting_byte_offsetB))"},{"Add":" local nexty = y + State.line_height"},{"Add":" if my < nexty then"},{"Add":" -- On all wrapped screen lines but the final one, clicks past end of"},{"Add":" -- line position cursor on final character of screen line."},{"Add":" -- (The final screen line positions past end of screen line as always.)"},{"Add":"--? print('aa', mx, State.left, Text.screen_line_widthB(State, line_index, screen_line_indexB))"},{"Add":" if screen_line_indexB < #line_cache.screen_line_starting_posB and mx > State.left + Text.screen_line_widthB(State, line_index, screen_line_indexB) then"},{"Add":"--? print('past end of non-final line; return')"},{"Add":" return nil, line_cache.screen_line_starting_posB[screen_line_indexB+1]-1"},{"Add":" end"},{"Add":" local s = string.sub(line.dataB, screen_line_starting_byte_offsetB)"},{"Add":"--? print('return', mx, Text.nearest_cursor_pos(s, mx, State.left), '=>', screen_line_starting_posB + Text.nearest_cursor_pos(s, mx, State.left) - 1)"},{"Add":" return nil, screen_line_starting_posB + Text.nearest_cursor_pos(s, mx, State.left) - 1"},{"Add":" end"},{"Add":" y = nexty"},{"Add":" end"},{"Add":" assert(false)"},{"Add":"end"},{"Add":""},{"Add":"function Text.screen_line_width(State, line_index, i)"},{"Add":" local line = State.lines[line_index]"},{"Add":" local line_cache = State.line_cache[line_index]"},{"Add":" local start_pos = line_cache.screen_line_starting_pos[i]"},{"Add":" local start_offset = Text.offset(line.data, start_pos)"},{"Add":" local screen_line"},{"Add":" if i < #line_cache.screen_line_starting_pos then"},{"Add":" local past_end_pos = line_cache.screen_line_starting_pos[i+1]"},{"Add":" local past_end_offset = Text.offset(line.data, past_end_pos)"},{"Add":" screen_line = string.sub(line.data, start_offset, past_end_offset-1)"},{"Add":" else"},{"Add":" screen_line = string.sub(line.data, start_pos)"},{"Add":" end"},{"Add":" local screen_line_text = App.newText(love.graphics.getFont(), screen_line)"},{"Add":" return App.width(screen_line_text)"},{"Add":"end"},{"Add":""},{"Add":"function Text.screen_line_widthB(State, line_index, i)"},{"Add":" local line = State.lines[line_index]"},{"Add":" local line_cache = State.line_cache[line_index]"},{"Add":" local start_posB = line_cache.screen_line_starting_posB[i]"},{"Add":" local start_offsetB = Text.offset(line.dataB, start_posB)"},{"Add":" local screen_line"},{"Add":" if i < #line_cache.screen_line_starting_posB then"},{"Add":"--? print('non-final', i)"},{"Add":" local past_end_posB = line_cache.screen_line_starting_posB[i+1]"},{"Add":" local past_end_offsetB = Text.offset(line.dataB, past_end_posB)"},{"Add":"--? print('between', start_offsetB, past_end_offsetB)"},{"Add":" screen_line = string.sub(line.dataB, start_offsetB, past_end_offsetB-1)"},{"Add":" else"},{"Add":"--? print('final', i)"},{"Add":"--? print('after', start_offsetB)"},{"Add":" screen_line = string.sub(line.dataB, start_offsetB)"},{"Add":" end"},{"Add":" local screen_line_text = App.newText(love.graphics.getFont(), screen_line)"},{"Add":"--? local result = App.width(screen_line_text)"},{"Add":"--? print('=>', result)"},{"Add":"--? return result"},{"Add":" return App.width(screen_line_text)"},{"Add":"end"},{"Add":""},{"Add":"function Text.screen_line_index(screen_line_starting_pos, pos)"},{"Add":" for i = #screen_line_starting_pos,1,-1 do"},{"Add":" if screen_line_starting_pos[i] <= pos then"},{"Add":" return i"},{"Add":" end"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.screen_line_indexB(screen_line_starting_posB, posB)"},{"Add":" if posB == nil then"},{"Add":" return 0"},{"Add":" end"},{"Add":" assert(screen_line_starting_posB)"},{"Add":" for i = #screen_line_starting_posB,1,-1 do"},{"Add":" if screen_line_starting_posB[i] <= posB then"},{"Add":" return i"},{"Add":" end"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"-- convert x pixel coordinate to pos"},{"Add":"-- oblivious to wrapping"},{"Add":"-- result: 1 to len+1"},{"Add":"function Text.nearest_cursor_pos(line, x, left)"},{"Add":" if x < left then"},{"Add":" return 1"},{"Add":" end"},{"Add":" local len = utf8.len(line)"},{"Add":" local max_x = left+Text.x(line, len+1)"},{"Add":" if x > max_x then"},{"Add":" return len+1"},{"Add":" end"},{"Add":" local leftpos, rightpos = 1, len+1"},{"Add":"--? print('-- nearest', x)"},{"Add":" while true do"},{"Add":"--? print('nearest', x, '^'..line..'$', leftpos, rightpos)"},{"Add":" if leftpos == rightpos then"},{"Add":" return leftpos"},{"Add":" end"},{"Add":" local curr = math.floor((leftpos+rightpos)/2)"},{"Add":" local currxmin = left+Text.x(line, curr)"},{"Add":" local currxmax = left+Text.x(line, curr+1)"},{"Add":"--? print('nearest', x, leftpos, rightpos, curr, currxmin, currxmax)"},{"Add":" if currxmin <= x and x < currxmax then"},{"Add":" if x-currxmin < currxmax-x then"},{"Add":" return curr"},{"Add":" else"},{"Add":" return curr+1"},{"Add":" end"},{"Add":" end"},{"Add":" if leftpos >= rightpos-1 then"},{"Add":" return rightpos"},{"Add":" end"},{"Add":" if currxmin > x then"},{"Add":" rightpos = curr"},{"Add":" else"},{"Add":" leftpos = curr"},{"Add":" end"},{"Add":" end"},{"Add":" assert(false)"},{"Add":"end"},{"Add":""},{"Add":"-- return the nearest index of line (in utf8 code points) which lies entirely"},{"Add":"-- within x pixels of the left margin"},{"Add":"-- result: 0 to len+1"},{"Add":"function Text.nearest_pos_less_than(line, x)"},{"Add":"--? print('', '-- nearest_pos_less_than', line, x)"},{"Add":" local len = utf8.len(line)"},{"Add":" local max_x = Text.x_after(line, len)"},{"Add":" if x > max_x then"},{"Add":" return len+1"},{"Add":" end"},{"Add":" local left, right = 0, len+1"},{"Add":" while true do"},{"Add":" local curr = math.floor((left+right)/2)"},{"Add":" local currxmin = Text.x_after(line, curr+1)"},{"Add":" local currxmax = Text.x_after(line, curr+2)"},{"Add":"--? print('', x, left, right, curr, currxmin, currxmax)"},{"Add":" if currxmin <= x and x < currxmax then"},{"Add":" return curr"},{"Add":" end"},{"Add":" if left >= right-1 then"},{"Add":" return left"},{"Add":" end"},{"Add":" if currxmin > x then"},{"Add":" right = curr"},{"Add":" else"},{"Add":" left = curr"},{"Add":" end"},{"Add":" end"},{"Add":" assert(false)"},{"Add":"end"},{"Add":""},{"Add":"function Text.x_after(s, pos)"},{"Add":" local offset = Text.offset(s, math.min(pos+1, #s+1))"},{"Add":" local s_before = s:sub(1, offset-1)"},{"Add":"--? print('^'..s_before..'$')"},{"Add":" local text_before = App.newText(love.graphics.getFont(), s_before)"},{"Add":" return App.width(text_before)"},{"Add":"end"},{"Add":""},{"Add":"function Text.x(s, pos)"},{"Add":" local offset = Text.offset(s, pos)"},{"Add":" local s_before = s:sub(1, offset-1)"},{"Add":" local text_before = App.newText(love.graphics.getFont(), s_before)"},{"Add":" return App.width(text_before)"},{"Add":"end"},{"Add":""},{"Add":"function Text.to2(State, loc1)"},{"Add":" if loc1.pos then"},{"Add":" return Text.to2A(State, loc1)"},{"Add":" else"},{"Add":" return Text.to2B(State, loc1)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.to2A(State, loc1)"},{"Add":" local result = {line=loc1.line}"},{"Add":" local line_cache = State.line_cache[loc1.line]"},{"Add":" Text.populate_screen_line_starting_pos(State, loc1.line)"},{"Add":" for i=#line_cache.screen_line_starting_pos,1,-1 do"},{"Add":" local spos = line_cache.screen_line_starting_pos[i]"},{"Add":" if spos <= loc1.pos then"},{"Add":" result.screen_line = i"},{"Add":" result.screen_pos = loc1.pos - spos + 1"},{"Add":" break"},{"Add":" end"},{"Add":" end"},{"Add":" assert(result.screen_pos)"},{"Add":" return result"},{"Add":"end"},{"Add":""},{"Add":"function Text.to2B(State, loc1)"},{"Add":" local result = {line=loc1.line}"},{"Add":" local line_cache = State.line_cache[loc1.line]"},{"Add":" Text.populate_screen_line_starting_pos(State, loc1.line)"},{"Add":" local x = Margin_left + Text.screen_line_width(State, loc1.line, #line_cache.screen_line_starting_pos) + AB_padding"},{"Add":" Text.populate_screen_line_starting_posB(State, loc1.line, x)"},{"Add":" for i=#line_cache.screen_line_starting_posB,1,-1 do"},{"Add":" local sposB = line_cache.screen_line_starting_posB[i]"},{"Add":" if sposB <= loc1.posB then"},{"Add":" result.screen_lineB = i"},{"Add":" result.screen_posB = loc1.posB - sposB + 1"},{"Add":" break"},{"Add":" end"},{"Add":" end"},{"Add":" assert(result.screen_posB)"},{"Add":" return result"},{"Add":"end"},{"Add":""},{"Add":"function Text.to1(State, loc2)"},{"Add":" if loc2.screen_pos then"},{"Add":" return Text.to1A(State, loc2)"},{"Add":" else"},{"Add":" return Text.to1B(State, loc2)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.to1A(State, loc2)"},{"Add":" local result = {line=loc2.line, pos=loc2.screen_pos}"},{"Add":" if loc2.screen_line > 1 then"},{"Add":" result.pos = State.line_cache[loc2.line].screen_line_starting_pos[loc2.screen_line] + loc2.screen_pos - 1"},{"Add":" end"},{"Add":" return result"},{"Add":"end"},{"Add":""},{"Add":"function Text.to1B(State, loc2)"},{"Add":" local result = {line=loc2.line, posB=loc2.screen_posB}"},{"Add":" if loc2.screen_lineB > 1 then"},{"Add":" result.posB = State.line_cache[loc2.line].screen_line_starting_posB[loc2.screen_lineB] + loc2.screen_posB - 1"},{"Add":" end"},{"Add":" return result"},{"Add":"end"},{"Add":""},{"Add":"function Text.lt1(a, b)"},{"Add":" if a.line < b.line then"},{"Add":" return true"},{"Add":" end"},{"Add":" if a.line > b.line then"},{"Add":" return false"},{"Add":" end"},{"Add":" -- A side < B side"},{"Add":" if a.pos and not b.pos then"},{"Add":" return true"},{"Add":" end"},{"Add":" if not a.pos and b.pos then"},{"Add":" return false"},{"Add":" end"},{"Add":" if a.pos then"},{"Add":" return a.pos < b.pos"},{"Add":" else"},{"Add":" return a.posB < b.posB"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.le1(a, b)"},{"Add":" return eq(a, b) or Text.lt1(a, b)"},{"Add":"end"},{"Add":""},{"Add":"function Text.offset(s, pos1)"},{"Add":" if pos1 == 1 then return 1 end"},{"Add":" local result = utf8.offset(s, pos1)"},{"Add":" if result == nil then"},{"Add":" print(pos1, #s, s)"},{"Add":" end"},{"Add":" assert(result)"},{"Add":" return result"},{"Add":"end"},{"Add":""},{"Add":"function Text.previous_screen_line(State, loc2)"},{"Add":" if loc2.screen_pos then"},{"Add":" return Text.previous_screen_lineA(State, loc2)"},{"Add":" else"},{"Add":" return Text.previous_screen_lineB(State, loc2)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.previous_screen_lineA(State, loc2)"},{"Add":" if loc2.screen_line > 1 then"},{"Add":"--? print('a')"},{"Add":" return {line=loc2.line, screen_line=loc2.screen_line-1, screen_pos=1}"},{"Add":" elseif loc2.line == 1 then"},{"Add":"--? print('b')"},{"Add":" return loc2"},{"Add":" else"},{"Add":" Text.populate_screen_line_starting_pos(State, loc2.line-1)"},{"Add":" if State.lines[loc2.line-1].dataB == nil or"},{"Add":" (not State.expanded and not State.lines[loc2.line-1].expanded) then"},{"Add":"--? print('c1', loc2.line-1, State.lines[loc2.line-1].data, '==', State.lines[loc2.line-1].dataB, State.line_cache[loc2.line-1].fragmentsB)"},{"Add":" return {line=loc2.line-1, screen_line=#State.line_cache[loc2.line-1].screen_line_starting_pos, screen_pos=1}"},{"Add":" end"},{"Add":" -- try to switch to B"},{"Add":" local prev_line_cache = State.line_cache[loc2.line-1]"},{"Add":" local x = Margin_left + Text.screen_line_width(State, loc2.line-1, #prev_line_cache.screen_line_starting_pos) + AB_padding"},{"Add":" Text.populate_screen_line_starting_posB(State, loc2.line-1, x)"},{"Add":" local screen_line_starting_posB = State.line_cache[loc2.line-1].screen_line_starting_posB"},{"Add":"--? print('c', loc2.line-1, State.lines[loc2.line-1].data, '==', State.lines[loc2.line-1].dataB, '==', #screen_line_starting_posB, 'starting from x', x)"},{"Add":" if #screen_line_starting_posB > 1 then"},{"Add":"--? print('c2')"},{"Add":" return {line=loc2.line-1, screen_lineB=#State.line_cache[loc2.line-1].screen_line_starting_posB, screen_posB=1}"},{"Add":" else"},{"Add":"--? print('c3')"},{"Add":" -- if there's only one screen line, assume it overlaps with A, so remain in A"},{"Add":" return {line=loc2.line-1, screen_line=#State.line_cache[loc2.line-1].screen_line_starting_pos, screen_pos=1}"},{"Add":" end"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.previous_screen_lineB(State, loc2)"},{"Add":" if loc2.screen_lineB > 2 then -- first screen line of B side overlaps with A side"},{"Add":" return {line=loc2.line, screen_lineB=loc2.screen_lineB-1, screen_posB=1}"},{"Add":" else"},{"Add":" -- switch to A side"},{"Add":" -- TODO: handle case where fold lands precisely at end of a new screen-line"},{"Add":" return {line=loc2.line, screen_line=#State.line_cache[loc2.line].screen_line_starting_pos, screen_pos=1}"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"-- resize helper"},{"Add":"function Text.tweak_screen_top_and_cursor(State)"},{"Add":" if State.screen_top1.pos == 1 then return end"},{"Add":" Text.populate_screen_line_starting_pos(State, State.screen_top1.line)"},{"Add":" local line = State.lines[State.screen_top1.line]"},{"Add":" local line_cache = State.line_cache[State.screen_top1.line]"},{"Add":" for i=2,#line_cache.screen_line_starting_pos do"},{"Add":" local pos = line_cache.screen_line_starting_pos[i]"},{"Add":" if pos == State.screen_top1.pos then"},{"Add":" break"},{"Add":" end"},{"Add":" if pos > State.screen_top1.pos then"},{"Add":" -- make sure screen top is at start of a screen line"},{"Add":" local prev = line_cache.screen_line_starting_pos[i-1]"},{"Add":" if State.screen_top1.pos - prev < pos - State.screen_top1.pos then"},{"Add":" State.screen_top1.pos = prev"},{"Add":" else"},{"Add":" State.screen_top1.pos = pos"},{"Add":" end"},{"Add":" break"},{"Add":" end"},{"Add":" end"},{"Add":" -- make sure cursor is on screen"},{"Add":" if Text.lt1(State.cursor1, State.screen_top1) then"},{"Add":" State.cursor1 = {line=State.screen_top1.line, pos=State.screen_top1.pos}"},{"Add":" elseif State.cursor1.line >= State.screen_bottom1.line then"},{"Add":"--? print('too low')"},{"Add":" if Text.cursor_out_of_screen(State) then"},{"Add":"--? print('tweak')"},{"Add":" local pos,posB = Text.to_pos_on_line(State, State.screen_bottom1.line, State.right-5, App.screen.height-5)"},{"Add":" State.cursor1 = {line=State.screen_bottom1.line, pos=pos, posB=posB}"},{"Add":" end"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"-- slightly expensive since it redraws the screen"},{"Add":"function Text.cursor_out_of_screen(State)"},{"Add":" App.draw()"},{"Add":" return State.cursor_y == nil"},{"Add":" -- this approach is cheaper and almost works, except on the final screen"},{"Add":" -- where file ends above bottom of screen"},{"Add":"--? local botpos = Text.pos_at_start_of_screen_line(State, State.cursor1)"},{"Add":"--? local botline1 = {line=State.cursor1.line, pos=botpos}"},{"Add":"--? return Text.lt1(State.screen_bottom1, botline1)"},{"Add":"end"},{"Add":""},{"Add":"function Text.redraw_all(State)"},{"Add":"--? print('clearing fragments')"},{"Add":" State.line_cache = {}"},{"Add":" for i=1,#State.lines do"},{"Add":" State.line_cache[i] = {}"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.clear_screen_line_cache(State, line_index)"},{"Add":" State.line_cache[line_index].fragments = nil"},{"Add":" State.line_cache[line_index].fragmentsB = nil"},{"Add":" State.line_cache[line_index].screen_line_starting_pos = nil"},{"Add":" State.line_cache[line_index].screen_line_starting_posB = nil"},{"Add":"end"},{"Add":""},{"Add":"function trim(s)"},{"Add":" return s:gsub('^%s+', ''):gsub('%s+$', '')"},{"Add":"end"},{"Add":""},{"Add":"function ltrim(s)"},{"Add":" return s:gsub('^%s+', '')"},{"Add":"end"},{"Add":""},{"Add":"function rtrim(s)"},{"Add":" return s:gsub('%s+$', '')"},{"Add":"end"}]}},{"FileAdd":{"meta":{"basename":"source_tests.lua","metadata":0},"context":[{"change":10,"pos":2}],"contents":[{"Add":"function test_resize_window()"},{"Add":" io.write('\\ntest_resize_window')"},{"Add":" App.screen.init{width=300, height=300}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" Editor_state.filename = 'foo'"},{"Add":" Log_browser_state = edit.initialize_test_state()"},{"Add":" check_eq(App.screen.width, 300, 'F - test_resize_window/baseline/width')"},{"Add":" check_eq(App.screen.height, 300, 'F - test_resize_window/baseline/height')"},{"Add":" check_eq(Editor_state.left, Test_margin_left, 'F - test_resize_window/baseline/left_margin')"},{"Add":" App.resize(200, 400)"},{"Add":" check_eq(App.screen.width, 200, 'F - test_resize_window/width')"},{"Add":" check_eq(App.screen.height, 400, 'F - test_resize_window/height')"},{"Add":" check_eq(Editor_state.left, Test_margin_left, 'F - test_resize_window/left_margin')"},{"Add":" -- ugly; right margin switches from 0 after resize"},{"Add":" check_eq(Editor_state.right, 200-Margin_right, 'F - test_resize_window/right_margin')"},{"Add":" check_eq(Editor_state.width, 200-Test_margin_left-Margin_right, 'F - test_resize_window/drawing_width')"},{"Add":" -- TODO: how to make assertions about when App.update got past the early exit?"},{"Add":"end"},{"Add":""},{"Add":"function test_drop_file()"},{"Add":" io.write('\\ntest_drop_file')"},{"Add":" App.screen.init{width=Editor_state.left+300, height=300}"},{"Add":" Editor_state = edit.initialize_test_state()"},{"Add":" App.filesystem['foo'] = 'abc\\ndef\\nghi\\n'"},{"Add":" local fake_dropped_file = {"},{"Add":" opened = false,"},{"Add":" getFilename = function(self)"},{"Add":" return 'foo'"},{"Add":" end,"},{"Add":" open = function(self)"},{"Add":" self.opened = true"},{"Add":" end,"},{"Add":" lines = function(self)"},{"Add":" assert(self.opened)"},{"Add":" return App.filesystem['foo']:gmatch('[^\\n]+')"},{"Add":" end,"},{"Add":" close = function(self)"},{"Add":" self.opened = false"},{"Add":" end,"},{"Add":" }"},{"Add":" App.filedropped(fake_dropped_file)"},{"Add":" check_eq(#Editor_state.lines, 3, 'F - test_drop_file/#lines')"},{"Add":" check_eq(Editor_state.lines[1].data, 'abc', 'F - test_drop_file/lines:1')"},{"Add":" check_eq(Editor_state.lines[2].data, 'def', 'F - test_drop_file/lines:2')"},{"Add":" check_eq(Editor_state.lines[3].data, 'ghi', 'F - test_drop_file/lines:3')"},{"Add":" edit.draw(Editor_state)"},{"Add":"end"},{"Add":""},{"Add":"function test_drop_file_saves_previous()"},{"Add":" io.write('\\ntest_drop_file_saves_previous')"},{"Add":" App.screen.init{width=Editor_state.left+300, height=300}"},{"Add":" -- initially editing a file called foo that hasn't been saved to filesystem yet"},{"Add":" Editor_state.lines = load_array{'abc', 'def'}"},{"Add":" Editor_state.filename = 'foo'"},{"Add":" schedule_save(Editor_state)"},{"Add":" -- now drag a new file bar from the filesystem"},{"Add":" App.filesystem['bar'] = 'abc\\ndef\\nghi\\n'"},{"Add":" local fake_dropped_file = {"},{"Add":" opened = false,"},{"Add":" getFilename = function(self)"},{"Add":" return 'bar'"},{"Add":" end,"},{"Add":" open = function(self)"},{"Add":" self.opened = true"},{"Add":" end,"},{"Add":" lines = function(self)"},{"Add":" assert(self.opened)"},{"Add":" return App.filesystem['bar']:gmatch('[^\\n]+')"},{"Add":" end,"},{"Add":" close = function(self)"},{"Add":" self.opened = false"},{"Add":" end,"},{"Add":" }"},{"Add":" App.filedropped(fake_dropped_file)"},{"Add":" -- filesystem now contains a file called foo"},{"Add":" check_eq(App.filesystem['foo'], 'abc\\ndef\\n', 'F - test_drop_file_saves_previous')"},{"Add":"end"}]}},{"FileAdd":{"meta":{"basename":"source_file.lua","metadata":0},"context":[{"change":10,"pos":2}],"contents":[{"Add":"-- primitives for saving to file and loading from file"},{"Add":""},{"Add":"Fold = '\\x1e' -- ASCII RS (record separator)"},{"Add":""},{"Add":"function file_exists(filename)"},{"Add":" local infile = App.open_for_reading(filename)"},{"Add":" if infile then"},{"Add":" infile:close()"},{"Add":" return true"},{"Add":" else"},{"Add":" return false"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function load_from_disk(State)"},{"Add":" local infile = App.open_for_reading(State.filename)"},{"Add":" State.lines = load_from_file(infile)"},{"Add":" if infile then infile:close() end"},{"Add":"end"},{"Add":""},{"Add":"function load_from_file(infile)"},{"Add":" local result = {}"},{"Add":" if infile then"},{"Add":" local infile_next_line = infile:lines() -- works with both Lua files and LÖVE Files (https://www.love2d.org/wiki/File)"},{"Add":" while true do"},{"Add":" local line = infile_next_line()"},{"Add":" if line == nil then break end"},{"Add":" local line_info = {}"},{"Add":" if line:find(Fold) then"},{"Add":" _, _, line_info.data, line_info.dataB = line:find('([^'..Fold..']*)'..Fold..'([^'..Fold..']*)')"},{"Add":" else"},{"Add":" line_info.data = line"},{"Add":" end"},{"Add":" table.insert(result, line_info)"},{"Add":" end"},{"Add":" end"},{"Add":" if #result == 0 then"},{"Add":" table.insert(result, {data=''})"},{"Add":" end"},{"Add":" return result"},{"Add":"end"},{"Add":""},{"Add":"function save_to_disk(State)"},{"Add":" local outfile = App.open_for_writing(State.filename)"},{"Add":" if outfile == nil then"},{"Add":" error('failed to write to \"'..State.filename..'\"')"},{"Add":" end"},{"Add":" for _,line in ipairs(State.lines) do"},{"Add":" outfile:write(line.data)"},{"Add":" if line.dataB and #line.dataB > 0 then"},{"Add":" outfile:write(Fold)"},{"Add":" outfile:write(line.dataB)"},{"Add":" end"},{"Add":" outfile:write('\\n')"},{"Add":" end"},{"Add":" outfile:close()"},{"Add":"end"},{"Add":""},{"Add":"function file_exists(filename)"},{"Add":" local infile = App.open_for_reading(filename)"},{"Add":" if infile then"},{"Add":" infile:close()"},{"Add":" return true"},{"Add":" else"},{"Add":" return false"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"-- for tests"},{"Add":"function load_array(a)"},{"Add":" local result = {}"},{"Add":" local next_line = ipairs(a)"},{"Add":" local i,line,drawing = 0, ''"},{"Add":" while true do"},{"Add":" i,line = next_line(a, i)"},{"Add":" if i == nil then break end"},{"Add":" local line_info = {}"},{"Add":" if line:find(Fold) then"},{"Add":" _, _, line_info.data, line_info.dataB = line:find('([^'..Fold..']*)'..Fold..'([^'..Fold..']*)')"},{"Add":" else"},{"Add":" line_info.data = line"},{"Add":" end"},{"Add":" table.insert(result, line_info)"},{"Add":" end"},{"Add":" if #result == 0 then"},{"Add":" table.insert(result, {data=''})"},{"Add":" end"},{"Add":" return result"},{"Add":"end"}]}},{"FileAdd":{"meta":{"basename":"source_edit.lua","metadata":0},"context":[{"change":10,"pos":2}],"contents":[{"Add":"-- some constants people might like to tweak"},{"Add":"Text_color = {r=0, g=0, b=0}"},{"Add":"Cursor_color = {r=1, g=0, b=0}"},{"Add":"Focus_stroke_color = {r=1, g=0, b=0} -- what mouse is hovering over"},{"Add":"Highlight_color = {r=0.7, g=0.7, b=0.9} -- selected text"},{"Add":"Fold_color = {r=0, g=0.6, b=0}"},{"Add":"Fold_background_color = {r=0, g=0.7, b=0}"},{"Add":""},{"Add":"Margin_top = 15"},{"Add":"Margin_left = 25"},{"Add":"Margin_right = 25"},{"Add":""},{"Add":"edit = {}"},{"Add":""},{"Add":"-- run in both tests and a real run"},{"Add":"function edit.initialize_state(top, left, right, font_height, line_height) -- currently always draws to bottom of screen"},{"Add":" local result = {"},{"Add":" -- a line of bifold text consists of an A side and an optional B side, each of which is a string"},{"Add":" -- expanded: whether to show B side"},{"Add":" lines = {{data='', dataB=nil, expanded=nil}}, -- array of lines"},{"Add":""},{"Add":" -- Lines can be too long to fit on screen, in which case they _wrap_ into"},{"Add":" -- multiple _screen lines_."},{"Add":""},{"Add":" -- rendering wrapped text lines needs some additional short-lived data per line:"},{"Add":" -- startpos, the index of data the line starts rendering from, can only be >1 for topmost line on screen"},{"Add":" -- starty, the y coord in pixels the line starts rendering from"},{"Add":" -- fragments: snippets of rendered love.graphics.Text, guaranteed to not straddle screen lines"},{"Add":" -- screen_line_starting_pos: optional array of grapheme indices if it wraps over more than one screen line"},{"Add":" line_cache = {},"},{"Add":""},{"Add":" -- Given wrapping, any potential location for the text cursor can be described in two ways:"},{"Add":" -- * schema 1: As a combination of line index and position within a line (in utf8 codepoint units)"},{"Add":" -- * schema 2: As a combination of line index, screen line index within the line, and a position within the screen line."},{"Add":" -- Positions (and screen line indexes) can be in either the A or the B side."},{"Add":" --"},{"Add":" -- Most of the time we'll only persist positions in schema 1, translating to"},{"Add":" -- schema 2 when that's convenient."},{"Add":" --"},{"Add":" -- Make sure these coordinates are never aliased, so that changing one causes"},{"Add":" -- action at a distance."},{"Add":" screen_top1 = {line=1, pos=1, posB=nil}, -- position of start of screen line at top of screen"},{"Add":" cursor1 = {line=1, pos=1, posB=nil}, -- position of cursor"},{"Add":" screen_bottom1 = {line=1, pos=1, posB=nil}, -- position of start of screen line at bottom of screen"},{"Add":""},{"Add":" -- cursor coordinates in pixels"},{"Add":" cursor_x = 0,"},{"Add":" cursor_y = 0,"},{"Add":""},{"Add":" font_height = font_height,"},{"Add":" line_height = line_height,"},{"Add":" em = App.newText(love.graphics.getFont(), 'm'), -- widest possible character width"},{"Add":""},{"Add":" top = top,"},{"Add":" left = left,"},{"Add":" right = right,"},{"Add":" width = right-left,"},{"Add":""},{"Add":" filename = love.filesystem.getUserDirectory()..'/lines.txt',"},{"Add":" next_save = nil,"},{"Add":""},{"Add":" -- undo"},{"Add":" history = {},"},{"Add":" next_history = 1,"},{"Add":""},{"Add":" -- search"},{"Add":" search_term = nil,"},{"Add":" search_text = nil,"},{"Add":" search_backup = nil, -- stuff to restore when cancelling search"},{"Add":" }"},{"Add":" return result"},{"Add":"end -- App.initialize_state"},{"Add":""},{"Add":"function edit.draw(State)"},{"Add":" State.button_handlers = {}"},{"Add":" App.color(Text_color)"},{"Add":" assert(#State.lines == #State.line_cache)"},{"Add":" if not Text.le1(State.screen_top1, State.cursor1) then"},{"Add":" print(State.screen_top1.line, State.screen_top1.pos, State.screen_top1.posB, State.cursor1.line, State.cursor1.pos, State.cursor1.posB)"},{"Add":" assert(false)"},{"Add":" end"},{"Add":" State.cursor_x = nil"},{"Add":" State.cursor_y = nil"},{"Add":" local y = State.top"},{"Add":"--? print('== draw')"},{"Add":" for line_index = State.screen_top1.line,#State.lines do"},{"Add":" local line = State.lines[line_index]"},{"Add":"--? print('draw:', y, line_index, line)"},{"Add":" if y + State.line_height > App.screen.height then break end"},{"Add":" State.screen_bottom1 = {line=line_index, pos=nil, posB=nil}"},{"Add":"--? print('text.draw', y, line_index)"},{"Add":" local startpos, startposB = 1, nil"},{"Add":" if line_index == State.screen_top1.line then"},{"Add":" if State.screen_top1.pos then"},{"Add":" startpos = State.screen_top1.pos"},{"Add":" else"},{"Add":" startpos, startposB = nil, State.screen_top1.posB"},{"Add":" end"},{"Add":" end"},{"Add":" y, State.screen_bottom1.pos, State.screen_bottom1.posB = Text.draw(State, line_index, y, startpos, startposB)"},{"Add":" y = y + State.line_height"},{"Add":"--? print('=> y', y)"},{"Add":" end"},{"Add":" if State.search_term then"},{"Add":" Text.draw_search_bar(State)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function edit.update(State, dt)"},{"Add":" if State.next_save and State.next_save < App.getTime() then"},{"Add":" save_to_disk(State)"},{"Add":" State.next_save = nil"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function schedule_save(State)"},{"Add":" if State.next_save == nil then"},{"Add":" State.next_save = App.getTime() + 3 -- short enough that you're likely to still remember what you did"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function edit.quit(State)"},{"Add":" -- make sure to save before quitting"},{"Add":" if State.next_save then"},{"Add":" save_to_disk(State)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function edit.mouse_pressed(State, x,y, mouse_button)"},{"Add":" if State.search_term then return end"},{"Add":"--? print('press', State.selection1.line, State.selection1.pos)"},{"Add":" if mouse_press_consumed_by_any_button_handler(State, x,y, mouse_button) then"},{"Add":" -- press on a button and it returned 'true' to short-circuit"},{"Add":" return"},{"Add":" end"},{"Add":""},{"Add":" for line_index,line in ipairs(State.lines) do"},{"Add":" if Text.in_line(State, line_index, x,y) then"},{"Add":" local pos,posB = Text.to_pos_on_line(State, line_index, x, y)"},{"Add":"--? print(x,y, 'setting cursor:', line_index, pos, posB)"},{"Add":" State.cursor1 = {line=line_index, pos=pos, posB=posB}"},{"Add":" break"},{"Add":" end"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function edit.mouse_released(State, x,y, mouse_button)"},{"Add":"end"},{"Add":""},{"Add":"function edit.textinput(State, t)"},{"Add":" for _,line_cache in ipairs(State.line_cache) do line_cache.starty = nil end -- just in case we scroll"},{"Add":" if State.search_term then"},{"Add":" State.search_term = State.search_term..t"},{"Add":" State.search_text = nil"},{"Add":" Text.search_next(State)"},{"Add":" else"},{"Add":" Text.textinput(State, t)"},{"Add":" end"},{"Add":" schedule_save(State)"},{"Add":"end"},{"Add":""},{"Add":"function edit.keychord_pressed(State, chord, key)"},{"Add":" if State.search_term then"},{"Add":" if chord == 'escape' then"},{"Add":" State.search_term = nil"},{"Add":" State.search_text = nil"},{"Add":" State.cursor1 = State.search_backup.cursor"},{"Add":" State.screen_top1 = State.search_backup.screen_top"},{"Add":" State.search_backup = nil"},{"Add":" Text.redraw_all(State) -- if we're scrolling, reclaim all fragments to avoid memory leaks"},{"Add":" elseif chord == 'return' then"},{"Add":" State.search_term = nil"},{"Add":" State.search_text = nil"},{"Add":" State.search_backup = nil"},{"Add":" elseif chord == 'backspace' then"},{"Add":" local len = utf8.len(State.search_term)"},{"Add":" local byte_offset = Text.offset(State.search_term, len)"},{"Add":" State.search_term = string.sub(State.search_term, 1, byte_offset-1)"},{"Add":" State.search_text = nil"},{"Add":" elseif chord == 'down' then"},{"Add":" if State.cursor1.pos then"},{"Add":" State.cursor1.pos = State.cursor1.pos+1"},{"Add":" else"},{"Add":" State.cursor1.posB = State.cursor1.posB+1"},{"Add":" end"},{"Add":" Text.search_next(State)"},{"Add":" elseif chord == 'up' then"},{"Add":" Text.search_previous(State)"},{"Add":" end"},{"Add":" return"},{"Add":" elseif chord == 'C-f' then"},{"Add":" State.search_term = ''"},{"Add":" State.search_backup = {"},{"Add":" cursor={line=State.cursor1.line, pos=State.cursor1.pos, posB=State.cursor1.posB},"},{"Add":" screen_top={line=State.screen_top1.line, pos=State.screen_top1.pos, posB=State.screen_top1.posB},"},{"Add":" }"},{"Add":" assert(State.search_text == nil)"},{"Add":" -- bifold text"},{"Add":" elseif chord == 'C-b' then"},{"Add":" State.expanded = not State.expanded"},{"Add":" Text.redraw_all(State)"},{"Add":" if not State.expanded then"},{"Add":" for _,line in ipairs(State.lines) do"},{"Add":" line.expanded = nil"},{"Add":" end"},{"Add":" edit.eradicate_locations_after_the_fold(State)"},{"Add":" end"},{"Add":" elseif chord == 'C-d' then"},{"Add":" if State.cursor1.posB == nil then"},{"Add":" local before = snapshot(State, State.cursor1.line)"},{"Add":" if State.lines[State.cursor1.line].dataB == nil then"},{"Add":" State.lines[State.cursor1.line].dataB = ''"},{"Add":" end"},{"Add":" State.lines[State.cursor1.line].expanded = true"},{"Add":" State.cursor1.pos = nil"},{"Add":" State.cursor1.posB = 1"},{"Add":" if Text.cursor_out_of_screen(State) then"},{"Add":" Text.snap_cursor_to_bottom_of_screen(State, State.left, State.right)"},{"Add":" end"},{"Add":" schedule_save(State)"},{"Add":" record_undo_event(State, {before=before, after=snapshot(State, State.cursor1.line)})"},{"Add":" end"},{"Add":" -- zoom"},{"Add":" elseif chord == 'C-=' then"},{"Add":" edit.update_font_settings(State, State.font_height+2)"},{"Add":" Text.redraw_all(State)"},{"Add":" elseif chord == 'C--' then"},{"Add":" edit.update_font_settings(State, State.font_height-2)"},{"Add":" Text.redraw_all(State)"},{"Add":" elseif chord == 'C-0' then"},{"Add":" edit.update_font_settings(State, 20)"},{"Add":" Text.redraw_all(State)"},{"Add":" -- undo"},{"Add":" elseif chord == 'C-z' then"},{"Add":" for _,line_cache in ipairs(State.line_cache) do line_cache.starty = nil end -- just in case we scroll"},{"Add":" local event = undo_event(State)"},{"Add":" if event then"},{"Add":" local src = event.before"},{"Add":" State.screen_top1 = deepcopy(src.screen_top)"},{"Add":" State.cursor1 = deepcopy(src.cursor)"},{"Add":" patch(State.lines, event.after, event.before)"},{"Add":" patch_placeholders(State.line_cache, event.after, event.before)"},{"Add":" -- if we're scrolling, reclaim all fragments to avoid memory leaks"},{"Add":" Text.redraw_all(State)"},{"Add":" schedule_save(State)"},{"Add":" end"},{"Add":" elseif chord == 'C-y' then"},{"Add":" for _,line_cache in ipairs(State.line_cache) do line_cache.starty = nil end -- just in case we scroll"},{"Add":" local event = redo_event(State)"},{"Add":" if event then"},{"Add":" local src = event.after"},{"Add":" State.screen_top1 = deepcopy(src.screen_top)"},{"Add":" State.cursor1 = deepcopy(src.cursor)"},{"Add":" patch(State.lines, event.before, event.after)"},{"Add":" -- if we're scrolling, reclaim all fragments to avoid memory leaks"},{"Add":" Text.redraw_all(State)"},{"Add":" schedule_save(State)"},{"Add":" end"},{"Add":" -- clipboard"},{"Add":" elseif chord == 'C-c' then"},{"Add":" local s = Text.selection(State)"},{"Add":" if s then"},{"Add":" App.setClipboardText(s)"},{"Add":" end"},{"Add":" elseif chord == 'C-x' then"},{"Add":" for _,line_cache in ipairs(State.line_cache) do line_cache.starty = nil end -- just in case we scroll"},{"Add":" local s = Text.cut_selection(State, State.left, State.right)"},{"Add":" if s then"},{"Add":" App.setClipboardText(s)"},{"Add":" end"},{"Add":" schedule_save(State)"},{"Add":" elseif chord == 'C-v' then"},{"Add":" for _,line_cache in ipairs(State.line_cache) do line_cache.starty = nil end -- just in case we scroll"},{"Add":" -- We don't have a good sense of when to scroll, so we'll be conservative"},{"Add":" -- and sometimes scroll when we didn't quite need to."},{"Add":" local before_line = State.cursor1.line"},{"Add":" local before = snapshot(State, before_line)"},{"Add":" local clipboard_data = App.getClipboardText()"},{"Add":" for _,code in utf8.codes(clipboard_data) do"},{"Add":" local c = utf8.char(code)"},{"Add":" if c == '\\n' then"},{"Add":" Text.insert_return(State)"},{"Add":" else"},{"Add":" Text.insert_at_cursor(State, c)"},{"Add":" end"},{"Add":" end"},{"Add":" if Text.cursor_out_of_screen(State) then"},{"Add":" Text.snap_cursor_to_bottom_of_screen(State, State.left, State.right)"},{"Add":" end"},{"Add":" schedule_save(State)"},{"Add":" record_undo_event(State, {before=before, after=snapshot(State, before_line, State.cursor1.line)})"},{"Add":" -- dispatch to text"},{"Add":" else"},{"Add":" for _,line_cache in ipairs(State.line_cache) do line_cache.starty = nil end -- just in case we scroll"},{"Add":" Text.keychord_pressed(State, chord)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function edit.eradicate_locations_after_the_fold(State)"},{"Add":" -- eradicate side B from any locations we track"},{"Add":" if State.cursor1.posB then"},{"Add":" State.cursor1.posB = nil"},{"Add":" State.cursor1.pos = utf8.len(State.lines[State.cursor1.line].data)"},{"Add":" State.cursor1.pos = Text.pos_at_start_of_screen_line(State, State.cursor1)"},{"Add":" end"},{"Add":" if State.screen_top1.posB then"},{"Add":" State.screen_top1.posB = nil"},{"Add":" State.screen_top1.pos = utf8.len(State.lines[State.screen_top1.line].data)"},{"Add":" State.screen_top1.pos = Text.pos_at_start_of_screen_line(State, State.screen_top1)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function edit.key_released(State, key, scancode)"},{"Add":"end"},{"Add":""},{"Add":"function edit.update_font_settings(State, font_height)"},{"Add":" State.font_height = font_height"},{"Add":" love.graphics.setFont(love.graphics.newFont(Editor_state.font_height))"},{"Add":" State.line_height = math.floor(font_height*1.3)"},{"Add":" State.em = App.newText(love.graphics.getFont(), 'm')"},{"Add":" Text_cache = {}"},{"Add":"end"},{"Add":""},{"Add":"--== some methods for tests"},{"Add":""},{"Add":"Test_margin_left = 25"},{"Add":""},{"Add":"function edit.initialize_test_state()"},{"Add":" -- if you change these values, tests will start failing"},{"Add":" return edit.initialize_state("},{"Add":" 15, -- top margin"},{"Add":" Test_margin_left,"},{"Add":" App.screen.width, -- right margin = 0"},{"Add":" 14, -- font height assuming default LÖVE font"},{"Add":" 15) -- line height"},{"Add":"end"},{"Add":""},{"Add":"-- all textinput events are also keypresses"},{"Add":"-- TODO: handle chords of multiple keys"},{"Add":"function edit.run_after_textinput(State, t)"},{"Add":" edit.keychord_pressed(State, t)"},{"Add":" edit.textinput(State, t)"},{"Add":" edit.key_released(State, t)"},{"Add":" App.screen.contents = {}"},{"Add":" edit.draw(State)"},{"Add":"end"},{"Add":""},{"Add":"-- not all keys are textinput"},{"Add":"function edit.run_after_keychord(State, chord)"},{"Add":" edit.keychord_pressed(State, chord)"},{"Add":" edit.key_released(State, chord)"},{"Add":" App.screen.contents = {}"},{"Add":" edit.draw(State)"},{"Add":"end"},{"Add":""},{"Add":"function edit.run_after_mouse_click(State, x,y, mouse_button)"},{"Add":" App.fake_mouse_press(x,y, mouse_button)"},{"Add":" edit.mouse_pressed(State, x,y, mouse_button)"},{"Add":" App.fake_mouse_release(x,y, mouse_button)"},{"Add":" edit.mouse_released(State, x,y, mouse_button)"},{"Add":" App.screen.contents = {}"},{"Add":" edit.draw(State)"},{"Add":"end"},{"Add":""},{"Add":"function edit.run_after_mouse_press(State, x,y, mouse_button)"},{"Add":" App.fake_mouse_press(x,y, mouse_button)"},{"Add":" edit.mouse_pressed(State, x,y, mouse_button)"},{"Add":" App.screen.contents = {}"},{"Add":" edit.draw(State)"},{"Add":"end"},{"Add":""},{"Add":"function edit.run_after_mouse_release(State, x,y, mouse_button)"},{"Add":" App.fake_mouse_release(x,y, mouse_button)"},{"Add":" edit.mouse_released(State, x,y, mouse_button)"},{"Add":" App.screen.contents = {}"},{"Add":" edit.draw(State)"},{"Add":"end"}]}},{"FileAdd":{"meta":{"basename":"source.lua","metadata":0},"context":[{"change":10,"pos":2}],"contents":[{"Add":"source = {}"},{"Add":""},{"Add":"Editor_state = {}"},{"Add":""},{"Add":"-- called both in tests and real run"},{"Add":"function source.initialize_globals()"},{"Add":" -- tests currently mostly clear their own state"},{"Add":""},{"Add":" Show_log_browser_side = false"},{"Add":" Focus = 'edit'"},{"Add":" Show_file_navigator = false"},{"Add":" File_navigation = {"},{"Add":" candidates = {"},{"Add":" 'run',"},{"Add":" 'run_tests',"},{"Add":" 'log',"},{"Add":" 'edit',"},{"Add":" 'text',"},{"Add":" 'search',"},{"Add":" 'select',"},{"Add":" 'undo',"},{"Add":" 'text_tests',"},{"Add":" 'file',"},{"Add":" 'source',"},{"Add":" 'source_tests',"},{"Add":" 'commands',"},{"Add":" 'log_browser',"},{"Add":" 'source_edit',"},{"Add":" 'source_text',"},{"Add":" 'source_undo',"},{"Add":" 'colorize',"},{"Add":" 'source_text_tests',"},{"Add":" 'source_file',"},{"Add":" 'main',"},{"Add":" 'button',"},{"Add":" 'keychord',"},{"Add":" 'app',"},{"Add":" 'test',"},{"Add":" 'json',"},{"Add":" },"},{"Add":" index = 1,"},{"Add":" }"},{"Add":""},{"Add":" Menu_status_bar_height = nil -- initialized below"},{"Add":""},{"Add":" -- a few text objects we can avoid recomputing unless the font changes"},{"Add":" Text_cache = {}"},{"Add":""},{"Add":" -- blinking cursor"},{"Add":" Cursor_time = 0"},{"Add":"end"},{"Add":""},{"Add":"-- called only for real run"},{"Add":"function source.initialize()"},{"Add":" love.keyboard.setTextInput(true) -- bring up keyboard on touch screen"},{"Add":" love.keyboard.setKeyRepeat(true)"},{"Add":""},{"Add":" love.graphics.setBackgroundColor(1,1,1)"},{"Add":""},{"Add":" if Settings and Settings.source then"},{"Add":" source.load_settings()"},{"Add":" else"},{"Add":" source.initialize_default_settings()"},{"Add":" end"},{"Add":""},{"Add":" source.initialize_edit_side{'run.lua'}"},{"Add":" source.initialize_log_browser_side()"},{"Add":""},{"Add":" Menu_status_bar_height = 5 + Editor_state.line_height + 5"},{"Add":" Editor_state.top = Editor_state.top + Menu_status_bar_height"},{"Add":" Log_browser_state.top = Log_browser_state.top + Menu_status_bar_height"},{"Add":"end"},{"Add":""},{"Add":"-- environment for a mutable file of bifolded text"},{"Add":"-- TODO: some initialization is also happening in load_settings/initialize_default_settings. Clean that up."},{"Add":"function source.initialize_edit_side(arg)"},{"Add":" if #arg > 0 then"},{"Add":" Editor_state.filename = arg[1]"},{"Add":" load_from_disk(Editor_state)"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.cursor1 = {line=1, pos=1}"},{"Add":" else"},{"Add":" load_from_disk(Editor_state)"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" end"},{"Add":""},{"Add":" if #arg > 1 then"},{"Add":" print('ignoring commandline args after '..arg[1])"},{"Add":" end"},{"Add":""},{"Add":" -- We currently start out with side B collapsed."},{"Add":" -- Other options:"},{"Add":" -- * save all expanded state by line"},{"Add":" -- * expand all if any location is in side B"},{"Add":" if Editor_state.cursor1.line > #Editor_state.lines then"},{"Add":" Editor_state.cursor1 = {line=1, pos=1}"},{"Add":" end"},{"Add":" if Editor_state.screen_top1.line > #Editor_state.lines then"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" end"},{"Add":" edit.eradicate_locations_after_the_fold(Editor_state)"},{"Add":""},{"Add":" if rawget(_G, 'jit') then"},{"Add":" jit.off()"},{"Add":" jit.flush()"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function source.load_settings()"},{"Add":" local settings = Settings.source"},{"Add":" love.graphics.setFont(love.graphics.newFont(settings.font_height))"},{"Add":" -- maximize window to determine maximum allowable dimensions"},{"Add":" love.window.setMode(0, 0) -- maximize"},{"Add":" Display_width, Display_height, App.screen.flags = love.window.getMode()"},{"Add":" -- set up desired window dimensions"},{"Add":" App.screen.flags.resizable = true"},{"Add":" App.screen.flags.minwidth = math.min(Display_width, 200)"},{"Add":" App.screen.flags.minheight = math.min(Display_height, 200)"},{"Add":" App.screen.width, App.screen.height = settings.width, settings.height"},{"Add":"--? print('setting window from settings:', App.screen.width, App.screen.height)"},{"Add":" love.window.setMode(App.screen.width, App.screen.height, App.screen.flags)"},{"Add":"--? print('loading source position', settings.x, settings.y, settings.displayindex)"},{"Add":" source.set_window_position_from_settings(settings)"},{"Add":" Show_log_browser_side = settings.show_log_browser_side"},{"Add":" local right = App.screen.width - Margin_right"},{"Add":" if Show_log_browser_side then"},{"Add":" right = App.screen.width/2 - Margin_right"},{"Add":" end"},{"Add":" Editor_state = edit.initialize_state(Margin_top, Margin_left, right, settings.font_height, math.floor(settings.font_height*1.3))"},{"Add":" Editor_state.filename = settings.filename"},{"Add":" Editor_state.screen_top1 = settings.screen_top"},{"Add":" Editor_state.cursor1 = settings.cursor"},{"Add":"end"},{"Add":""},{"Add":"function source.set_window_position_from_settings(settings)"},{"Add":" -- setPosition doesn't quite seem to do what is asked of it on Linux."},{"Add":" love.window.setPosition(settings.x, settings.y-37, settings.displayindex)"},{"Add":"end"},{"Add":""},{"Add":"function source.initialize_default_settings()"},{"Add":" local font_height = 20"},{"Add":" love.graphics.setFont(love.graphics.newFont(font_height))"},{"Add":" local em = App.newText(love.graphics.getFont(), 'm')"},{"Add":" source.initialize_window_geometry(App.width(em))"},{"Add":" Editor_state = edit.initialize_state(Margin_top, Margin_left, App.screen.width-Margin_right)"},{"Add":" Editor_state.font_height = font_height"},{"Add":" Editor_state.line_height = math.floor(font_height*1.3)"},{"Add":" Editor_state.em = em"},{"Add":"end"},{"Add":""},{"Add":"function source.initialize_window_geometry(em_width)"},{"Add":" -- maximize window"},{"Add":" love.window.setMode(0, 0) -- maximize"},{"Add":" Display_width, Display_height, App.screen.flags = love.window.getMode()"},{"Add":" -- shrink height slightly to account for window decoration"},{"Add":" App.screen.height = Display_height-100"},{"Add":" App.screen.width = 40*em_width"},{"Add":" App.screen.flags.resizable = true"},{"Add":" App.screen.flags.minwidth = math.min(App.screen.width, 200)"},{"Add":" App.screen.flags.minheight = math.min(App.screen.width, 200)"},{"Add":" love.window.setMode(App.screen.width, App.screen.height, App.screen.flags)"},{"Add":" print('initializing source position')"},{"Add":" if Settings == nil then Settings = {} end"},{"Add":" if Settings.source == nil then Settings.source = {} end"},{"Add":" Settings.source.x, Settings.source.y, Settings.source.displayindex = love.window.getPosition()"},{"Add":"end"},{"Add":""},{"Add":"function source.resize(w, h)"},{"Add":"--? print((\"Window resized to width: %d and height: %d.\"):format(w, h))"},{"Add":" App.screen.width, App.screen.height = w, h"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.selection1 = {} -- no support for shift drag while we're resizing"},{"Add":" if Show_log_browser_side then"},{"Add":" Editor_state.right = App.screen.width/2 - Margin_right"},{"Add":" else"},{"Add":" Editor_state.right = App.screen.width-Margin_right"},{"Add":" end"},{"Add":" Log_browser_state.left = App.screen.width/2 + Margin_right"},{"Add":" Log_browser_state.right = App.screen.width-Margin_right"},{"Add":" Editor_state.width = Editor_state.right-Editor_state.left"},{"Add":" Text.tweak_screen_top_and_cursor(Editor_state, Editor_state.left, Editor_state.right)"},{"Add":"--? print('end resize')"},{"Add":"end"},{"Add":""},{"Add":"function source.filedropped(file)"},{"Add":" -- first make sure to save edits on any existing file"},{"Add":" if Editor_state.next_save then"},{"Add":" save_to_disk(Editor_state)"},{"Add":" end"},{"Add":" -- clear the slate for the new file"},{"Add":" Editor_state.filename = file:getFilename()"},{"Add":" file:open('r')"},{"Add":" Editor_state.lines = load_from_file(file)"},{"Add":" file:close()"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.cursor1 = {line=1, pos=1}"},{"Add":"end"},{"Add":""},{"Add":"-- a copy of source.filedropped when given a filename"},{"Add":"function source.switch_to_file(filename)"},{"Add":" -- first make sure to save edits on any existing file"},{"Add":" if Editor_state.next_save then"},{"Add":" save_to_disk(Editor_state)"},{"Add":" end"},{"Add":" -- clear the slate for the new file"},{"Add":" Editor_state.filename = filename"},{"Add":" load_from_disk(Editor_state)"},{"Add":" Text.redraw_all(Editor_state)"},{"Add":" Editor_state.screen_top1 = {line=1, pos=1}"},{"Add":" Editor_state.cursor1 = {line=1, pos=1}"},{"Add":"end"},{"Add":""},{"Add":"function source.draw()"},{"Add":" source.draw_menu_bar()"},{"Add":" edit.draw(Editor_state)"},{"Add":" if Show_log_browser_side then"},{"Add":" -- divider"},{"Add":" App.color(Divider_color)"},{"Add":" love.graphics.rectangle('fill', App.screen.width/2-1,Menu_status_bar_height, 3,App.screen.height)"},{"Add":" --"},{"Add":" log_browser.draw(Log_browser_state)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function source.update(dt)"},{"Add":" Cursor_time = Cursor_time + dt"},{"Add":" if App.mouse_x() < Editor_state.right then"},{"Add":" edit.update(Editor_state, dt)"},{"Add":" elseif Show_log_browser_side then"},{"Add":" log_browser.update(Log_browser_state, dt)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function source.quit()"},{"Add":" edit.quit(Editor_state)"},{"Add":" log_browser.quit(Log_browser_state)"},{"Add":" -- convert any bifold files here"},{"Add":"end"},{"Add":""},{"Add":"function source.convert_bifold_text(infilename, outfilename)"},{"Add":" local contents = love.filesystem.read(infilename)"},{"Add":" contents = contents:gsub('\\u{1e}', ';')"},{"Add":" love.filesystem.write(outfilename, contents)"},{"Add":"end"},{"Add":""},{"Add":"function source.settings()"},{"Add":" if Current_app == 'source' then"},{"Add":"--? print('reading source window position')"},{"Add":" Settings.source.x, Settings.source.y, Settings.source.displayindex = love.window.getPosition()"},{"Add":" end"},{"Add":" local filename = Editor_state.filename"},{"Add":" if filename:sub(1,1) ~= '/' then"},{"Add":" filename = love.filesystem.getWorkingDirectory()..'/'..filename -- '/' should work even on Windows"},{"Add":" end"},{"Add":"--? print('saving source settings', Settings.source.x, Settings.source.y, Settings.source.displayindex)"},{"Add":" return {"},{"Add":" x=Settings.source.x, y=Settings.source.y, displayindex=Settings.source.displayindex,"},{"Add":" width=App.screen.width, height=App.screen.height,"},{"Add":" font_height=Editor_state.font_height,"},{"Add":" filename=filename,"},{"Add":" screen_top=Editor_state.screen_top1, cursor=Editor_state.cursor1,"},{"Add":" show_log_browser_side=Show_log_browser_side,"},{"Add":" focus=Focus,"},{"Add":" }"},{"Add":"end"},{"Add":""},{"Add":"function source.mouse_pressed(x,y, mouse_button)"},{"Add":" Cursor_time = 0 -- ensure cursor is visible immediately after it moves"},{"Add":"--? print('mouse click', x, y)"},{"Add":"--? print(Editor_state.left, Editor_state.right)"},{"Add":"--? print(Log_browser_state.left, Log_browser_state.right)"},{"Add":" if Editor_state.left <= x and x < Editor_state.right then"},{"Add":"--? print('click on edit side')"},{"Add":" if Focus ~= 'edit' then"},{"Add":" Focus = 'edit'"},{"Add":" end"},{"Add":" edit.mouse_pressed(Editor_state, x,y, mouse_button)"},{"Add":" elseif Show_log_browser_side and Log_browser_state.left <= x and x < Log_browser_state.right then"},{"Add":"--? print('click on log_browser side')"},{"Add":" if Focus ~= 'log_browser' then"},{"Add":" Focus = 'log_browser'"},{"Add":" end"},{"Add":" log_browser.mouse_pressed(Log_browser_state, x,y, mouse_button)"},{"Add":" for _,line_cache in ipairs(Editor_state.line_cache) do line_cache.starty = nil end -- just in case we scroll"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function source.mouse_released(x,y, mouse_button)"},{"Add":" Cursor_time = 0 -- ensure cursor is visible immediately after it moves"},{"Add":" if Focus == 'edit' then"},{"Add":" return edit.mouse_released(Editor_state, x,y, mouse_button)"},{"Add":" else"},{"Add":" return log_browser.mouse_released(Log_browser_state, x,y, mouse_button)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function source.textinput(t)"},{"Add":" Cursor_time = 0 -- ensure cursor is visible immediately after it moves"},{"Add":" if Focus == 'edit' then"},{"Add":" return edit.textinput(Editor_state, t)"},{"Add":" else"},{"Add":" return log_browser.textinput(Log_browser_state, t)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function source.keychord_pressed(chord, key)"},{"Add":" Cursor_time = 0 -- ensure cursor is visible immediately after it moves"},{"Add":"--? print('source keychord')"},{"Add":" if Show_file_navigator then"},{"Add":" keychord_pressed_on_file_navigator(chord, key)"},{"Add":" return"},{"Add":" end"},{"Add":" if chord == 'C-l' then"},{"Add":"--? print('C-l')"},{"Add":" Show_log_browser_side = not Show_log_browser_side"},{"Add":" if Show_log_browser_side then"},{"Add":" App.screen.width = Log_browser_state.right + Margin_right"},{"Add":" else"},{"Add":" App.screen.width = Editor_state.right + Margin_right"},{"Add":" end"},{"Add":"--? print('setting window:', App.screen.width, App.screen.height)"},{"Add":" love.window.setMode(App.screen.width, App.screen.height, App.screen.flags)"},{"Add":"--? print('done setting window')"},{"Add":" -- try to restore position if possible"},{"Add":" -- if the window gets wider the window manager may not respect this"},{"Add":" source.set_window_position_from_settings(Settings.source)"},{"Add":" return"},{"Add":" end"},{"Add":" if chord == 'C-g' then"},{"Add":" Show_file_navigator = true"},{"Add":" File_navigation.index = 1"},{"Add":" return"},{"Add":" end"},{"Add":" if Focus == 'edit' then"},{"Add":" return edit.keychord_pressed(Editor_state, chord, key)"},{"Add":" else"},{"Add":" return log_browser.keychord_pressed(Log_browser_state, chord, key)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function source.key_released(key, scancode)"},{"Add":" Cursor_time = 0 -- ensure cursor is visible immediately after it moves"},{"Add":" if Focus == 'edit' then"},{"Add":" return edit.key_released(Editor_state, key, scancode)"},{"Add":" else"},{"Add":" return log_browser.keychord_pressed(Log_browser_state, chordkey, scancode)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"-- use this sparingly"},{"Add":"function to_text(s)"},{"Add":" if Text_cache[s] == nil then"},{"Add":" Text_cache[s] = App.newText(love.graphics.getFont(), s)"},{"Add":" end"},{"Add":" return Text_cache[s]"},{"Add":"end"}]}},{"Replacement":{"inode":{"change":10,"pos":48846},"path":"search.lua","line":33,"ins":{"up_context":[{"change":10,"pos":219}],"down_context":[{"change":10,"pos":282}],"flag":"BLOCK","start":177752,"end":177794,"inode":{"change":10,"pos":48846}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":10,"pos":219},"to":{"change":10,"start":219,"end":282},"introduced_by":10}],"inode":{"change":10,"pos":48846}},"ins_contents":[{"Add":" State.cursor1 = {line=i, pos=pos}"}],"del_contents":[{"Del":" State.cursor1.line = i\n State.cursor1.pos = pos\n"}]}},{"Replacement":{"inode":{"change":10,"pos":48846},"path":"search.lua","line":43,"ins":{"up_context":[{"change":10,"pos":50207}],"down_context":[{"change":10,"pos":50258}],"flag":"BLOCK","start":177795,"end":177837,"inode":{"change":10,"pos":48846}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | 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Load"},{"Add":"-- functions to render them into the log_render namespace."},{"Add":""},{"Add":"function source.initialize_log_browser_side()"},{"Add":" Log_browser_state = edit.initialize_state(Margin_top, Editor_state.right + Margin_right + Margin_left, (Editor_state.right+Margin_right)*2, Editor_state.font_height, Editor_state.line_height)"},{"Add":" Log_browser_state.filename = 'log'"},{"Add":" load_from_disk(Log_browser_state) -- TODO: pay no attention to Fold"},{"Add":" log_browser.parse(Log_browser_state)"},{"Add":" Text.redraw_all(Log_browser_state)"},{"Add":" Log_browser_state.screen_top1 = {line=1, pos=1}"},{"Add":" Log_browser_state.cursor1 = {line=1, pos=nil}"},{"Add":"end"},{"Add":""},{"Add":"Section_stack = {}"},{"Add":"Section_border_color = {r=0.7, g=0.7, b=0.7}"},{"Add":"Cursor_line_background_color = {r=0.7, g=0.7, b=0, a=0.1}"},{"Add":""},{"Add":"Section_border_padding_horizontal = 30 -- TODO: adjust this based on font height (because we draw text vertically along the borders"},{"Add":"Section_border_padding_vertical = 15 -- TODO: adjust this based on font height"},{"Add":""},{"Add":"log_browser = {}"},{"Add":""},{"Add":"function log_browser.parse(State)"},{"Add":" for _,line in ipairs(State.lines) do"},{"Add":" if line.data ~= '' then"},{"Add":" line.filename, line.line_number, line.data = line.data:match('%[string \"([^:]*)\"%]:([^:]*):%s*(.*)')"},{"Add":" line.filename = guess_source(line.filename)"},{"Add":" line.line_number = tonumber(line.line_number)"},{"Add":" if line.data:sub(1,1) == '{' then"},{"Add":" local data = json.decode(line.data)"},{"Add":" if log_render[data.name] then"},{"Add":" line.data = data"},{"Add":" end"},{"Add":" line.section_stack = table.shallowcopy(Section_stack)"},{"Add":" elseif line.data:match('\\u{250c}') then"},{"Add":" line.section_stack = table.shallowcopy(Section_stack) -- as it is at the beginning"},{"Add":" local section_name = line.data:match('\\u{250c}%s*(.*)')"},{"Add":" table.insert(Section_stack, {name=section_name})"},{"Add":" line.section_begin = true"},{"Add":" line.section_name = section_name"},{"Add":" line.data = nil"},{"Add":" elseif line.data:match('\\u{2518}') then"},{"Add":" local section_name = line.data:match('\\u{2518}%s*(.*)')"},{"Add":" if array.find(Section_stack, function(x) return x.name == section_name end) then"},{"Add":" while table.remove(Section_stack).name ~= section_name do"},{"Add":" --"},{"Add":" end"},{"Add":" line.section_end = true"},{"Add":" line.section_name = section_name"},{"Add":" line.data = nil"},{"Add":" end"},{"Add":" line.section_stack = table.shallowcopy(Section_stack)"},{"Add":" else"},{"Add":" -- string"},{"Add":" line.section_stack = table.shallowcopy(Section_stack)"},{"Add":" end"},{"Add":" else"},{"Add":" line.section_stack = {}"},{"Add":" end"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function table.shallowcopy(x)"},{"Add":" return {unpack(x)}"},{"Add":"end"},{"Add":""},{"Add":"function guess_source(filename)"},{"Add":" local possible_source = filename:gsub('%.lua$', '%.splua')"},{"Add":" if file_exists(possible_source) then"},{"Add":" return possible_source"},{"Add":" else"},{"Add":" return filename"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function log_browser.draw(State)"},{"Add":" assert(#State.lines == #State.line_cache)"},{"Add":" local mouse_line_index = log_browser.line_index(State, App.mouse_x(), App.mouse_y())"},{"Add":" local y = State.top"},{"Add":" for line_index = State.screen_top1.line,#State.lines do"},{"Add":" App.color(Text_color)"},{"Add":" local line = State.lines[line_index]"},{"Add":" if y + State.line_height > App.screen.height then break end"},{"Add":" local height = State.line_height"},{"Add":" if should_show(line) then"},{"Add":" local xleft = render_stack_left_margin(State, line_index, line, y)"},{"Add":" local xright = render_stack_right_margin(State, line_index, line, y)"},{"Add":" if line.section_name then"},{"Add":" App.color(Section_border_color)"},{"Add":" local section_text = to_text(line.section_name)"},{"Add":" if line.section_begin then"},{"Add":" local sectiony = y+Section_border_padding_vertical"},{"Add":" love.graphics.line(xleft,sectiony, xleft,y+State.line_height)"},{"Add":" love.graphics.line(xright,sectiony, xright,y+State.line_height)"},{"Add":" love.graphics.line(xleft,sectiony, xleft+50-2,sectiony)"},{"Add":" love.graphics.draw(section_text, xleft+50,y)"},{"Add":" love.graphics.line(xleft+50+App.width(section_text)+2,sectiony, xright,sectiony)"},{"Add":" else assert(line.section_end)"},{"Add":" local sectiony = y+State.line_height-Section_border_padding_vertical"},{"Add":" love.graphics.line(xleft,y, xleft,sectiony)"},{"Add":" love.graphics.line(xright,y, xright,sectiony)"},{"Add":" love.graphics.line(xleft,sectiony, xleft+50-2,sectiony)"},{"Add":" love.graphics.draw(section_text, xleft+50,y)"},{"Add":" love.graphics.line(xleft+50+App.width(section_text)+2,sectiony, xright,sectiony)"},{"Add":" end"},{"Add":" else"},{"Add":" if type(line.data) == 'string' then"},{"Add":" local old_left, old_right = State.left,State.right"},{"Add":" State.left,State.right = xleft,xright"},{"Add":" y = Text.draw(State, line_index, y, --[[startpos]] 1)"},{"Add":" State.left,State.right = old_left,old_right"},{"Add":" else"},{"Add":" height = log_render[line.data.name](line.data, xleft, y, xright-xleft)"},{"Add":" end"},{"Add":" end"},{"Add":" if App.mouse_x() > Log_browser_state.left and line_index == mouse_line_index then"},{"Add":" App.color(Cursor_line_background_color)"},{"Add":" love.graphics.rectangle('fill', xleft,y, xright-xleft, height)"},{"Add":" end"},{"Add":" y = y + height"},{"Add":" end"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function render_stack_left_margin(State, line_index, line, y)"},{"Add":" if line.section_stack == nil then"},{"Add":" -- assertion message"},{"Add":" for k,v in pairs(line) do"},{"Add":" print(k)"},{"Add":" end"},{"Add":" end"},{"Add":" App.color(Section_border_color)"},{"Add":" for i=1,#line.section_stack do"},{"Add":" local x = State.left + (i-1)*Section_border_padding_horizontal"},{"Add":" love.graphics.line(x,y, x,y+log_browser.height(State, line_index))"},{"Add":" if y < 30 then"},{"Add":" love.graphics.print(line.section_stack[i].name, x+State.font_height+5, y+5, --[[vertically]] math.pi/2)"},{"Add":" end"},{"Add":" if y > App.screen.height-log_browser.height(State, line_index) then"},{"Add":" love.graphics.print(line.section_stack[i].name, x+State.font_height+5, App.screen.height-App.width(to_text(line.section_stack[i].name))-5, --[[vertically]] math.pi/2)"},{"Add":" end"},{"Add":" end"},{"Add":" return log_browser.left_margin(State, line)"},{"Add":"end"},{"Add":""},{"Add":"function render_stack_right_margin(State, line_index, line, y)"},{"Add":" App.color(Section_border_color)"},{"Add":" for i=1,#line.section_stack do"},{"Add":" local x = State.right - (i-1)*Section_border_padding_horizontal"},{"Add":" love.graphics.line(x,y, x,y+log_browser.height(State, line_index))"},{"Add":" if y < 30 then"},{"Add":" love.graphics.print(line.section_stack[i].name, x, y+5, --[[vertically]] math.pi/2)"},{"Add":" end"},{"Add":" if y > App.screen.height-log_browser.height(State, line_index) then"},{"Add":" love.graphics.print(line.section_stack[i].name, x, App.screen.height-App.width(to_text(line.section_stack[i].name))-5, --[[vertically]] math.pi/2)"},{"Add":" end"},{"Add":" end"},{"Add":" return log_browser.right_margin(State, line)"},{"Add":"end"},{"Add":""},{"Add":"function should_show(line)"},{"Add":" -- Show a line if every single section it's in is expanded."},{"Add":" for i=1,#line.section_stack do"},{"Add":" local section = line.section_stack[i]"},{"Add":" if not section.expanded then"},{"Add":" return false"},{"Add":" end"},{"Add":" end"},{"Add":" return true"},{"Add":"end"},{"Add":""},{"Add":"function log_browser.left_margin(State, line)"},{"Add":" return State.left + #line.section_stack*Section_border_padding_horizontal"},{"Add":"end"},{"Add":""},{"Add":"function log_browser.right_margin(State, line)"},{"Add":" return State.right - #line.section_stack*Section_border_padding_horizontal"},{"Add":"end"},{"Add":""},{"Add":"function log_browser.update(State, dt)"},{"Add":"end"},{"Add":""},{"Add":"function log_browser.quit(State)"},{"Add":"end"},{"Add":""},{"Add":"function log_browser.mouse_pressed(State, x,y, mouse_button)"},{"Add":" local line_index = log_browser.line_index(State, x,y)"},{"Add":" if line_index == nil then"},{"Add":" -- below lower margin"},{"Add":" return"},{"Add":" end"},{"Add":" -- leave some space to click without focusing"},{"Add":" local line = State.lines[line_index]"},{"Add":" local xleft = log_browser.left_margin(State, line)"},{"Add":" local xright = log_browser.right_margin(State, line)"},{"Add":" if x < xleft or x > xright then"},{"Add":" return"},{"Add":" end"},{"Add":" -- if it's a section begin/end and the section is collapsed, expand it"},{"Add":" -- TODO: how to collapse?"},{"Add":" if line.section_begin or line.section_end then"},{"Add":" -- HACK: get section reference from next/previous line"},{"Add":" local new_section"},{"Add":" if line.section_begin then"},{"Add":" if line_index < #State.lines then"},{"Add":" local next_section_stack = State.lines[line_index+1].section_stack"},{"Add":" if next_section_stack then"},{"Add":" new_section = next_section_stack[#next_section_stack]"},{"Add":" end"},{"Add":" end"},{"Add":" elseif line.section_end then"},{"Add":" if line_index > 1 then"},{"Add":" local previous_section_stack = State.lines[line_index-1].section_stack"},{"Add":" if previous_section_stack then"},{"Add":" new_section = previous_section_stack[#previous_section_stack]"},{"Add":" end"},{"Add":" end"},{"Add":" end"},{"Add":" if new_section and new_section.expanded == nil then"},{"Add":" new_section.expanded = true"},{"Add":" return"},{"Add":" end"},{"Add":" end"},{"Add":" -- open appropriate file in source side"},{"Add":" if line.filename ~= Editor_state.filename then"},{"Add":" source.switch_to_file(line.filename)"},{"Add":" end"},{"Add":" -- set cursor"},{"Add":" Editor_state.cursor1 = {line=line.line_number, pos=1, posB=nil}"},{"Add":" -- make sure it's visible"},{"Add":" -- TODO: handle extremely long lines"},{"Add":" Editor_state.screen_top1.line = math.max(0, Editor_state.cursor1.line-5)"},{"Add":" -- show cursor"},{"Add":" Focus = 'edit'"},{"Add":" -- expand B side"},{"Add":" Editor_state.expanded = true"},{"Add":"end"},{"Add":""},{"Add":"function log_browser.line_index(State, mx,my)"},{"Add":" -- duplicate some logic from log_browser.draw"},{"Add":" local y = State.top"},{"Add":" for line_index = State.screen_top1.line,#State.lines do"},{"Add":" local line = State.lines[line_index]"},{"Add":" if should_show(line) then"},{"Add":" y = y + log_browser.height(State, line_index)"},{"Add":" if my < y then"},{"Add":" return line_index"},{"Add":" end"},{"Add":" if y > App.screen.height then break end"},{"Add":" end"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function log_browser.mouse_released(State, x,y, mouse_button)"},{"Add":"end"},{"Add":""},{"Add":"function log_browser.textinput(State, t)"},{"Add":"end"},{"Add":""},{"Add":"function log_browser.keychord_pressed(State, chord, key)"},{"Add":" -- move"},{"Add":" if chord == 'up' then"},{"Add":" while State.screen_top1.line > 1 do"},{"Add":" State.screen_top1.line = State.screen_top1.line-1"},{"Add":" if should_show(State.lines[State.screen_top1.line]) then"},{"Add":" break"},{"Add":" end"},{"Add":" end"},{"Add":" elseif chord == 'down' then"},{"Add":" while State.screen_top1.line < #State.lines do"},{"Add":" State.screen_top1.line = State.screen_top1.line+1"},{"Add":" if should_show(State.lines[State.screen_top1.line]) then"},{"Add":" break"},{"Add":" end"},{"Add":" end"},{"Add":" elseif chord == 'pageup' then"},{"Add":" local y = 0"},{"Add":" while State.screen_top1.line > 1 and y < App.screen.height - 100 do"},{"Add":" State.screen_top1.line = State.screen_top1.line - 1"},{"Add":" if should_show(State.lines[State.screen_top1.line]) then"},{"Add":" y = y + log_browser.height(State, State.screen_top1.line)"},{"Add":" end"},{"Add":" end"},{"Add":" elseif chord == 'pagedown' then"},{"Add":" local y = 0"},{"Add":" while State.screen_top1.line < #State.lines and y < App.screen.height - 100 do"},{"Add":" if should_show(State.lines[State.screen_top1.line]) then"},{"Add":" y = y + log_browser.height(State, State.screen_top1.line)"},{"Add":" end"},{"Add":" State.screen_top1.line = State.screen_top1.line + 1"},{"Add":" end"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function log_browser.height(State, line_index)"},{"Add":" local line = State.lines[line_index]"},{"Add":" if line.data == nil then"},{"Add":" -- section header"},{"Add":" return State.line_height"},{"Add":" elseif type(line.data) == 'string' then"},{"Add":" return State.line_height"},{"Add":" else"},{"Add":" if line.height == nil then"},{"Add":"--? print('nil line height! rendering off screen to calculate')"},{"Add":" line.height = log_render[line.data.name](line.data, State.left, App.screen.height, State.right-State.left)"},{"Add":" end"},{"Add":" return line.height"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function log_browser.keyreleased(State, key, scancode)"},{"Add":"end"}]}},{"FileAdd":{"meta":{"basename":"log.lua","metadata":0},"context":[{"change":10,"pos":2}],"contents":[{"Add":"function log(stack_frame_index, obj)"},{"Add":"\tlocal info = debug.getinfo(stack_frame_index, 'Sl')"},{"Add":"\tlocal msg"},{"Add":"\tif type(obj) == 'string' then"},{"Add":"\t\tmsg = obj"},{"Add":"\telse"},{"Add":"\t\tmsg = json.encode(obj)"},{"Add":"\tend"},{"Add":"\tlove.filesystem.append('log', info.short_src..':'..info.currentline..': '..msg..'\\n')"},{"Add":"end"},{"Add":""},{"Add":"-- for section delimiters we'll use specific Unicode box characters"},{"Add":"function log_start(name, stack_frame_index)"},{"Add":"\tif stack_frame_index == nil then"},{"Add":"\t\tstack_frame_index = 3"},{"Add":"\tend"},{"Add":"\tlog(stack_frame_index, '\\u{250c} ' .. name)"},{"Add":"end"},{"Add":"function log_end(name, stack_frame_index)"},{"Add":"\tif stack_frame_index == nil then"},{"Add":"\t\tstack_frame_index = 3"},{"Add":"\tend"},{"Add":"\tlog(stack_frame_index, '\\u{2518} ' .. name)"},{"Add":"end"},{"Add":""},{"Add":"function log_new(name, stack_frame_index)"},{"Add":"\tif stack_frame_index == nil then"},{"Add":"\t\tstack_frame_index = 4"},{"Add":"\tend"},{"Add":"\tlog_end(name, stack_frame_index)"},{"Add":"\tlog_start(name, stack_frame_index)"},{"Add":"end"},{"Add":""},{"Add":"-- vim:noexpandtab"}]}},{"Replacement":{"inode":{"change":10,"pos":467},"path":"keychord.lua","line":59,"ins":{"up_context":[{"change":10,"pos":228}],"down_context":[{"change":10,"pos":293}],"flag":"BLOCK","start":203610,"end":203724,"inode":{"change":10,"pos":467}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":10,"pos":228},"to":{"change":10,"start":228,"end":293},"introduced_by":10}],"inode":{"change":10,"pos":467}},"ins_contents":[{"Add":" if type(elem) == 'function' then"},{"Add":" for i,x in ipairs(arr) do"},{"Add":" if elem(x) then"},{"Add":" return i"},{"Add":" end"}],"del_contents":[{"Del":" for i,x in ipairs(arr) do\n if x == elem then\n return i\n"}]}},{"Edit":{"inode":{"change":10,"pos":467},"path":"keychord.lua","line":65,"atom":{"NewVertex":{"up_context":[{"change":10,"pos":301}],"down_context":[{"change":10,"pos":301}],"flag":"BLOCK","start":203725,"end":203821,"inode":{"change":10,"pos":467}}},"contents":[{"Add":" else"},{"Add":" for i,x in ipairs(arr) do"},{"Add":" if x == elem then"},{"Add":" return i"},{"Add":" end"},{"Add":" end"}]}},{"Edit":{"inode":{"change":10,"pos":413},"path":"edit.lua","line":10,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":10,"pos":22248},"to":{"change":10,"start":400,"end":401},"introduced_by":10},{"previous":"","flag":"DELETED","from":{"change":10,"pos":998},"to":{"change":10,"start":414,"end":436},"introduced_by":10},{"previous":"","flag":"DELETED","from":{"change":10,"pos":22249},"to":{"change":10,"start":414,"end":436},"introduced_by":10},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":10,"pos":413},"to":{"change":10,"start":414,"end":436},"introduced_by":10}],"inode":{"change":10,"pos":413}}},"contents":[{"Del":"\n"},{"Del":"utf8 = require 'utf8'\n"}]}},{"Edit":{"inode":{"change":10,"pos":413},"path":"edit.lua","line":11,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":10,"pos":437},"to":{"change":10,"start":437,"end":452},"introduced_by":10},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":10,"pos":469},"to":{"change":10,"start":469,"end":484},"introduced_by":10},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":10,"pos":548},"to":{"change":10,"start":548,"end":549},"introduced_by":10}],"inode":{"change":10,"pos":413}}},"contents":[{"Del":"require 'file'\n"},{"Del":"require 'text'\n"},{"Del":"\n"}]}},{"FileAdd":{"meta":{"basename":"commands.lua","metadata":0},"context":[{"change":10,"pos":2}],"contents":[{"Add":"Menu_background_color = {r=0.6, g=0.8, b=0.6}"},{"Add":"Menu_border_color = {r=0.6, g=0.7, b=0.6}"},{"Add":"Menu_command_color = {r=0.2, g=0.2, b=0.2}"},{"Add":"Menu_highlight_color = {r=0.5, g=0.7, b=0.3}"},{"Add":""},{"Add":"function source.draw_menu_bar()"},{"Add":" if App.run_tests then return end -- disable in tests"},{"Add":" App.color(Menu_background_color)"},{"Add":" love.graphics.rectangle('fill', 0,0, App.screen.width, Menu_status_bar_height)"},{"Add":" App.color(Menu_border_color)"},{"Add":" love.graphics.rectangle('line', 0,0, App.screen.width, Menu_status_bar_height)"},{"Add":" App.color(Menu_command_color)"},{"Add":" Menu_cursor = 5"},{"Add":" if Show_file_navigator then"},{"Add":" source.draw_file_navigator()"},{"Add":" return"},{"Add":" end"},{"Add":" add_hotkey_to_menu('ctrl+e: run')"},{"Add":" if Focus == 'edit' then"},{"Add":" add_hotkey_to_menu('ctrl+g: switch file')"},{"Add":" if Show_log_browser_side then"},{"Add":" add_hotkey_to_menu('ctrl+l: hide log browser')"},{"Add":" else"},{"Add":" add_hotkey_to_menu('ctrl+l: show log browser')"},{"Add":" end"},{"Add":" if Editor_state.expanded then"},{"Add":" add_hotkey_to_menu('ctrl+b: collapse debug prints')"},{"Add":" else"},{"Add":" add_hotkey_to_menu('ctrl+b: expand debug prints')"},{"Add":" end"},{"Add":" add_hotkey_to_menu('ctrl+d: create/edit debug print')"},{"Add":" add_hotkey_to_menu('ctrl+f: find in file')"},{"Add":" add_hotkey_to_menu('alt+left alt+right: prev/next word')"},{"Add":" elseif Focus == 'log_browser' then"},{"Add":" -- nothing yet"},{"Add":" else"},{"Add":" assert(false, 'unknown focus \"'..Focus..'\"')"},{"Add":" end"},{"Add":" add_hotkey_to_menu('ctrl+z ctrl+y: undo/redo')"},{"Add":" add_hotkey_to_menu('ctrl+x ctrl+c ctrl+v: cut/copy/paste')"},{"Add":" add_hotkey_to_menu('ctrl+= ctrl+- ctrl+0: zoom')"},{"Add":"end"},{"Add":""},{"Add":"function add_hotkey_to_menu(s)"},{"Add":" if Text_cache[s] == nil then"},{"Add":" Text_cache[s] = App.newText(love.graphics.getFont(), s)"},{"Add":" end"},{"Add":" local width = App.width(Text_cache[s])"},{"Add":" if Menu_cursor + width > App.screen.width - 5 then"},{"Add":" return"},{"Add":" end"},{"Add":" App.color(Menu_command_color)"},{"Add":" App.screen.draw(Text_cache[s], Menu_cursor,5)"},{"Add":" Menu_cursor = Menu_cursor + width + 30"},{"Add":"end"},{"Add":""},{"Add":"function source.draw_file_navigator()"},{"Add":" for i,file in ipairs(File_navigation.candidates) do"},{"Add":" if file == 'source' then"},{"Add":" App.color(Menu_border_color)"},{"Add":" love.graphics.line(Menu_cursor-10,2, Menu_cursor-10,Menu_status_bar_height-2)"},{"Add":" end"},{"Add":" add_file_to_menu(file, i == File_navigation.index)"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function add_file_to_menu(s, cursor_highlight)"},{"Add":" if Text_cache[s] == nil then"},{"Add":" Text_cache[s] = App.newText(love.graphics.getFont(), s)"},{"Add":" end"},{"Add":" local width = App.width(Text_cache[s])"},{"Add":" if Menu_cursor + width > App.screen.width - 5 then"},{"Add":" return"},{"Add":" end"},{"Add":" if cursor_highlight then"},{"Add":" App.color(Menu_highlight_color)"},{"Add":" love.graphics.rectangle('fill', Menu_cursor-5,5-2, App.width(Text_cache[s])+5*2,Editor_state.line_height+2*2)"},{"Add":" end"},{"Add":" App.color(Menu_command_color)"},{"Add":" App.screen.draw(Text_cache[s], Menu_cursor,5)"},{"Add":" Menu_cursor = Menu_cursor + width + 30"},{"Add":"end"},{"Add":""},{"Add":"function keychord_pressed_on_file_navigator(chord, key)"},{"Add":" if chord == 'escape' then"},{"Add":" Show_file_navigator = false"},{"Add":" elseif chord == 'return' then"},{"Add":" local candidate = guess_source(File_navigation.candidates[File_navigation.index]..'.lua')"},{"Add":" source.switch_to_file(candidate)"},{"Add":" Show_file_navigator = false"},{"Add":" elseif chord == 'left' then"},{"Add":" if File_navigation.index > 1 then"},{"Add":" File_navigation.index = File_navigation.index-1"},{"Add":" end"},{"Add":" elseif chord == 'right' then"},{"Add":" if File_navigation.index < #File_navigation.candidates then"},{"Add":" File_navigation.index = File_navigation.index+1"},{"Add":" end"},{"Add":" end"},{"Add":"end"}]}},{"FileAdd":{"meta":{"basename":"colorize.lua","metadata":0},"context":[{"change":10,"pos":2}],"contents":[{"Add":"-- State transitions while colorizing a single line."},{"Add":"-- Just for comments and strings."},{"Add":"-- Limitation: each fragment gets a uniform color so we can only change color"},{"Add":"-- at word boundaries."},{"Add":"Next_state = {"},{"Add":" normal={"},{"Add":" {prefix='--', target='comment'},"},{"Add":" {prefix='\"', target='dstring'},"},{"Add":" {prefix=\"'\", target='sstring'},"},{"Add":" },"},{"Add":" dstring={"},{"Add":" {suffix='\"', target='normal'},"},{"Add":" },"},{"Add":" sstring={"},{"Add":" {suffix=\"'\", target='normal'},"},{"Add":" },"},{"Add":" -- comments are a sink"},{"Add":"}"},{"Add":""},{"Add":"Comments_color = {r=0, g=0, b=1}"},{"Add":"String_color = {r=0, g=0.5, b=0.5}"},{"Add":"Divider_color = {r=0.7, g=0.7, b=0.7}"},{"Add":""},{"Add":"Colors = {"},{"Add":" normal=Text_color,"},{"Add":" comment=Comments_color,"},{"Add":" sstring=String_color,"},{"Add":" dstring=String_color"},{"Add":"}"},{"Add":""},{"Add":"Current_state = 'normal'"},{"Add":""},{"Add":"function initialize_color()"},{"Add":"--? print('new line')"},{"Add":" Current_state = 'normal'"},{"Add":"end"},{"Add":""},{"Add":"function select_color(frag)"},{"Add":"--? print('before', '^'..frag..'$', Current_state)"},{"Add":" switch_color_based_on_prefix(frag)"},{"Add":"--? print('using color', Current_state, Colors[Current_state])"},{"Add":" App.color(Colors[Current_state])"},{"Add":" switch_color_based_on_suffix(frag)"},{"Add":"--? print('state after suffix', Current_state)"},{"Add":"end"},{"Add":""},{"Add":"function switch_color_based_on_prefix(frag)"},{"Add":" if Next_state[Current_state] == nil then"},{"Add":" return"},{"Add":" end"},{"Add":" frag = rtrim(frag)"},{"Add":" for _,edge in pairs(Next_state[Current_state]) do"},{"Add":" if edge.prefix and find(frag, edge.prefix, nil, --[[plain]] true) == 1 then"},{"Add":" Current_state = edge.target"},{"Add":" break"},{"Add":" end"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function switch_color_based_on_suffix(frag)"},{"Add":" if Next_state[Current_state] == nil then"},{"Add":" return"},{"Add":" end"},{"Add":" frag = rtrim(frag)"},{"Add":" for _,edge in pairs(Next_state[Current_state]) do"},{"Add":" if edge.suffix and rfind(frag, edge.suffix, nil, --[[plain]] true) == #frag then"},{"Add":" Current_state = edge.target"},{"Add":" break"},{"Add":" end"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function trim(s)"},{"Add":" return s:gsub('^%s+', ''):gsub('%s+$', '')"},{"Add":"end"},{"Add":""},{"Add":"function ltrim(s)"},{"Add":" return s:gsub('^%s+', '')"},{"Add":"end"},{"Add":""},{"Add":"function rtrim(s)"},{"Add":" return s:gsub('%s+$', '')"},{"Add":"end"}]}},{"Replacement":{"inode":{"change":10,"pos":2},"path":"app.lua","line":1,"ins":{"up_context":[{"change":10,"pos":2}],"down_context":[{"change":10,"pos":1769}],"flag":"BLOCK","start":209172,"end":209220,"inode":{"change":10,"pos":2}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":10,"pos":2},"to":{"change":10,"start":1740,"end":1769},"introduced_by":10}],"inode":{"change":10,"pos":2}},"ins_contents":[{"Add":"-- love.run: main entrypoint function for LÖVE"}],"del_contents":[{"Del":"-- main entrypoint for LÖVE\n"}]}},{"Edit":{"inode":{"change":10,"pos":2},"path":"app.lua","line":14,"atom":{"NewVertex":{"up_context":[{"change":10,"pos":54}],"down_context":[{"change":10,"pos":2266}],"flag":"BLOCK","start":209221,"end":209243,"inode":{"change":10,"pos":2}}},"contents":[{"Add":" App.snapshot_love()"}]}},{"Replacement":{"inode":{"change":10,"pos":2},"path":"app.lua","line":16,"ins":{"up_context":[{"change":10,"pos":2302}],"down_context":[{"change":10,"pos":258}],"flag":"BLOCK","start":209244,"end":209277,"inode":{"change":10,"pos":2}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":10,"pos":2302},"to":{"change":10,"start":2302,"end":2321},"introduced_by":10}],"inode":{"change":10,"pos":2}},"ins_contents":[{"Add":" App.run_tests_and_initialize()"}],"del_contents":[{"Del":" App.run_tests()\n\n"}]}},{"Edit":{"inode":{"change":10,"pos":2},"path":"app.lua","line":18,"atom":{"EdgeMap":{"edges":[{"previous":"","flag":"DELETED","from":{"change":10,"pos":276},"to":{"change":10,"start":2321,"end":2343},"introduced_by":10},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":10,"pos":2321},"to":{"change":10,"start":2321,"end":2343},"introduced_by":10},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":10,"pos":2343},"to":{"change":5,"start":19,"end":102},"introduced_by":5}],"inode":{"change":10,"pos":2}}},"contents":[{"Del":" App.disable_tests()\n"},{"Del":" App.initialize_globals()\n App.initialize(love.arg.parseGameArguments(arg), arg)\n"}]}},{"Edit":{"inode":{"change":10,"pos":2},"path":"app.lua","line":123,"atom":{"NewVertex":{"up_context":[{"change":10,"pos":5849}],"down_context":[{"change":10,"pos":5849}],"flag":"BLOCK","start":209278,"end":209859,"inode":{"change":10,"pos":2}}},"contents":[{"Add":"-- save/restore various framework globals we care about -- only on very first load"},{"Add":"function App.snapshot_love()"},{"Add":" if Love_snapshot then return end"},{"Add":" Love_snapshot = {}"},{"Add":" -- save the entire initial font; it doesn't seem reliably recreated using newFont"},{"Add":" Love_snapshot.initial_font = love.graphics.getFont()"},{"Add":"end"},{"Add":""},{"Add":"function App.undo_initialize()"},{"Add":" love.graphics.setFont(Love_snapshot.initial_font)"},{"Add":"end"},{"Add":""},{"Add":"function App.run_tests_and_initialize()"},{"Add":" App.load()"},{"Add":" App.run_tests()"},{"Add":" App.disable_tests()"},{"Add":" App.initialize_globals()"},{"Add":" App.initialize(love.arg.parseGameArguments(arg), arg)"},{"Add":"end"},{"Add":""}]}},{"Edit":{"inode":{"change":10,"pos":6},"path":"README.md","line":33,"atom":{"NewVertex":{"up_context":[{"change":2,"pos":91}],"down_context":[{"change":166,"pos":18}],"flag":"BLOCK","start":209861,"end":209894,"inode":{"change":10,"pos":6}}},"contents":[{"Add":"* `ctrl+e` to modify the sources"}]}},{"Edit":{"inode":{"change":10,"pos":6},"path":"README.md","line":63,"atom":{"NewVertex":{"up_context":[{"change":167,"pos":1120}],"down_context":[{"change":167,"pos":1120}],"flag":"BLOCK","start":209895,"end":210004,"inode":{"change":10,"pos":6}}},"contents":[{"Add":"* There are some temporary limitations when editing sources:"},{"Add":" - no line drawings"},{"Add":" - no selecting text"},{"Add":""}]}},{"Edit":{"inode":{"change":10,"pos":6},"path":"README.md","line":85,"atom":{"NewVertex":{"up_context":[{"change":8,"pos":163}],"down_context":[{"change":8,"pos":163}],"flag":"BLOCK","start":210005,"end":210126,"inode":{"change":10,"pos":6}}},"contents":[{"Add":"* https://codeberg.org/akkartik/pong.love -- a fairly minimal example app that"},{"Add":" can edit and debug its own source code."}]}},{"Edit":{"inode":{"change":10,"pos":1},"path":"Manual_tests.md","line":5,"atom":{"NewVertex":{"up_context":[{"change":10,"pos":1991}],"down_context":[{"change":10,"pos":210}],"flag":"BLOCK","start":210130,"end":210184,"inode":{"change":10,"pos":1}}},"contents":[{"Add":""},{"Add":"Startup:"},{"Add":" - terminal log shows unit tests running"}]}},{"Replacement":{"inode":{"change":10,"pos":1},"path":"Manual_tests.md","line":9,"ins":{"up_context":[{"change":10,"pos":211}],"down_context":[{"change":10,"pos":1460}],"flag":"BLOCK","start":210185,"end":210912,"inode":{"change":10,"pos":1}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":10,"pos":211},"to":{"change":10,"start":23,"end":168},"introduced_by":10}],"inode":{"change":10,"pos":1}},"ins_contents":[{"Add":"Initializing settings:"},{"Add":" - delete app settings, start; window opens running the text editor"},{"Add":" - quit while running the text editor, restart; window opens running the text editor in same position+dimensions"},{"Add":" - quit while editing source (color; no selection), restart; window opens editing source in same position+dimensions"},{"Add":" - start out running the text editor, move window, press ctrl+e twice; window is running text editor in same position+dimensions"},{"Add":" - start out editing source, move window, press ctrl+e twice; window is editing source in same position+dimensions"},{"Add":" - no log file; switching to source works"},{"Add":""},{"Add":"Code loading:"},{"Add":"* run love with directory; text editor runs"},{"Add":"* run love with zip file; text editor runs"}],"del_contents":[{"Del":"* Initializing settings:\n - from previous session\n - Filename as absolute path\n - Filename as relative path\n - from defaults\n"}]}},{"Edit":{"inode":{"change":10,"pos":1},"path":"Manual_tests.md","line":26,"atom":{"NewVertex":{"up_context":[{"change":10,"pos":169}],"down_context":[{"change":10,"pos":169}],"flag":"BLOCK","start":210913,"end":211092,"inode":{"change":10,"pos":1}}},"contents":[{"Add":"* start out running the text editor, press ctrl+e to edit source, make a change to the source, press ctrl+e twice to return to the source editor; the change should be preserved."},{"Add":""}]}}],"owner":"akkartik","repo":"sum-grid.love","token":"dp8SonOmwOU3cc5+5Clcm9dSjIE22E/3KeG/WIXAVGU=","login":null}

…

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