{"header":{"message":"Merge lines.love","description":"Just a placeholder to skip past changes lines.love pulled from us.","timestamp":"2022-09-03T21:44:19Z","authors":[{"email":"vc@akkartik.com","name":"Kartik K. Agaram"}]},"hash":"GBSRQUT4QF5WCFVSTGSOU3BM6VCGPNBBG5WKDEGDGGCOUWTPEC2AC","authors":[],"deps":{"hashes":[["GBSRQUT4QF5WCFVSTGSOU3BM6VCGPNBBG5WKDEGDGGCOUWTPEC2AC","Merge lines.love"],["AA",null],["MOAEVTKJCOJPY66OF74FOQIDQ4L2IP3JIKZLOYGHNRVKNQARSESAC","clean up a few more loose ends"],["JOPVPUSAMMU6RFVDQR4NJC4GNNUFB7GPKVH7OS5FKCYS5QZ53VLQC","editing source code from within the app"],["KKMFQDR43ZWVCDRHQLWWX3FCWCFA3ZSXYOBRJNPHUQZR2XPKWULAC","editing source code from within the app"],["AD34IX2ZSGYGU3LGY2IZOZNKD4HRQOYJVG5UWMWLXJZJSM62FFOAC","couple more tests"],["TVCPXAAU4P3K5MFYINH2MWDK3KGTQ2GE74TUNERYOONG2G5EYKMQC","rename"],["VSBSWTE4IVQDRXLPQ7VTDIIEBEF7GMGRBHZ2IA73ZR6B2KZWI5JAC","bugfix: where cursor is drawn"],["25V2GA6JNWMYNBNFLBHFPJ5ZFYQ4E25E4XMTJSTQJGPPK56RSBAAC","taking stock"],["PFT5Y2ZYGQA6XXOZ5HH75WVUGA4B3KTDRHSFOZRAUKTPSFOPMNRAC","move"],["LF7BWEG4DKQI7NMXMZC4LC2BE5PB42HK5PD6OYBNIDMAZBJASOKQC","group all editor 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dimensions"],["AVLAYODPMKCDBUFJSTGNUXIK74V3NDCBH55DBBFTNVBMFY6I7BCAC","much simpler"],["IYW7X3WLOPYLSNO5IQNSULUNO4XFEM24DJ2VB5HPBUKWUYFPRCGQC","left/right cursor movement, deleting characters"],["6DE7RBZ6RHNEICJ7EUMCTROK43LW4LYINULIF2QEQOKCXWLUYUXAC","move mouse_released events to Drawing"],["PP2IIHL6EK4HBFFSYAQNV35BKIK6D4EL2JQOY7NZVJX2DXCLSMGAC","stop putting button state in a global"],["AJB4LFRBMIRBEDWJ3OW7GQIMD2BZBVQ62GH4TE2FISWZKSAHRF4QC","try to maintain a reasonable line width"],["S7ZZA3YEKYGLBN6UC2N7WGUS43L6MX2KQQ2LBUZT4FQ7K7V5IQGQC","ugh, handle absolute as well as relative paths"],["CE4LZV4TNXJT54CVGM3QANCBP42TMLMZWF2DBSMUYKAHILXIZEMQC","drop last couple of manual tests"],["Z4KNS42NJZTQKUQZ7B5NYU2U4VOCUQCBFT2D7423MAXKF7NQ5ZJAC","to open a file without a terminal, drag it on!"],["TXDMRA5JEAML2GF5QY4ATU22G3NI7DQWPGO4U5OZNP7NGK4JT6WQC","bugfix: alt-tab shouldn't emit keypress events"],["UEE5W7WJ46FIBN4ZH45Z33L4RYXK5AP5ZIBHYTFOJTDWVVX54QKAC","document one more 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Drawing"],["D4FEFHQCSILZFQ5VLWNXAIRZNUMCDNGJSM4UJ6T6FDMMIWYRYILQC","flesh out Readme"],["66X36NZNEHWWURKSZ6G3XSC4CKQ7NTR4HYGDJGLHAUELMUAQC34AC","a little more prose describing manual_tests"],["K464QQR4FTXFUMHFWAGOD5DJ6YHUBUKRHLXF2ORE74DVT7TVQ35QC","more defensive resize handling"],["OTIBCAUJ3KDQJLVDN3A536DLZGNRYMGJLORZVR3WLCGXGO6UGO6AC","love2d scaffold"],["VHQCNMARPMNBSIUFLJG7HVK4QGDNPCGNVFLHS3I4IGNVSV5MRLYQC","several more modules"],["AVTNUQYRBW7IX2YQ3KDLVQ23RGW3BAKTAE7P73ASBYNKOHMQMH5AC","basic test-enabled framework"],["R6GUSTBY5ZHR7E46DSIDQDNZDJI6QMZQDC7RPQMQWLGWQKXU6HVQC","default font size and line-height"],["SPNMXTYRSNPNQJNBTYDZSHYDZVZRPM4LI5QX7GR2TLTC6SPJX4DAC","have file API operate on state object"],["BULPIBEGL7TMK6CVIE7IS7WGAHGOSUJBGJSFQK542MOWGHP2ADQQC","beginnings of a module for the text editor"],["RT6EV6OPUYCXYZOX2PHFXJ7KT77KHNEVINEGQXIQLHQVKPGTN6VQC","delegate update events to drawings"],["PWHZPJJM7UZW2VILT5TZBDZHIXXXBASVSBQB3A5EEMOFJTI6ADYAC","always show current filename in window title"],["M6JI7UJ7JO33L5A7VBTRZR7VQ7YRCFJSU2B7YGRVXZO3AET4ZSTQC","obsolete comment"],["H6QZ7GRR2UBK4POXP6PNMYHHW54SJAQYTTFVPQK4YIJZ4FECAPPQC","more precise name"],["5ZA3BRNYWKSGEBJ4JLA4UBC3LJPT5JBWYCU7PQYRSGX6MJMEWDIQC","add state arg to a few functions"],["4VKEE43Z7MUPNIAOCK36INVBNHRTSWRRN37TIKRPXPH3DRKGHHAQC","bugfix"],["MUJTM6REGQAK3LZTIFWGJRXE2UPCM4HSLXQYSF5ITLXLS6JCVPMQC","bring back a level of wrapping"],["HRWN5V6J6VMXS7WNSRGI7WMUSZ2OI52JJ4IK352VVSDZI4EF5HHQC","Devine's suggestion to try to live with just freehand"],["EF6MFB46IJA3TMTGY6DNPFB46RETYX6L2JGX2P567T2XFY47MB3AC","assume we always have a filename"],["H2DPLWMVRFYTO2CQTG54FMT2LF3B6UKLXH32CUA22DNQJVP5XBNQC","snapshot: wrapping long lines at word boundaries"],["NP7PIUBTR4K6SWJS46YZG3H2RYYNRGNEJMPV4I24TQXT5O3YT27QC","bugfix: restore state after C-f (find)"],["E5FYDACSQNKJG4USM52I6C4KTN3U4Z47C4TK4QYC6RF2FFCZCYCAC","a likely source of issues"],["PX7DDEMOBGPVK3FXKK5XEPG24CJXZSVW67DLG2JZZ5E77NVEAA3AC","autosave slightly less aggressively"],["GUOQRUL75BMNH7UOZIQ7EYXKK2TMQAIU6HAKMZ75TZYB7NWSZAVQC","Merge lines.love"],["YT5P6TO64XSMCZGTT4SVNFOWUN5ECNXTWCMFXN3YCDZUNH4H3IFAC","bugfix: save previous file when dropping a new one on"],["WQOSZSUESLH4YRMW3PIWGSEC7RS243324PBROJP2KPRFJ3NFSEZQC","warn on unused commandline args"],["7EQLPB3O4DPUWGILY4P5D32SSIKL63QWWU5XRL2HISGNJXFWD2SAC","bugfix: don't delete selection when moving cursor"],["4YDBYBA4H77LGAJHWRKVQSUGSYFNXKINO3VHFSQLU2XE36EIGO5AC","clean up memory leak experiments"],["LNUHQOGHIOFGJXNGA3DZLYEASLYYDGLN2I3EDZY5ANASQAHCG3YQC","start passing in Editor_state explicitly"],["FYS7TCDWKNRNOJSGRD2JMU4B2LHX5S63ZISM7YF7KZYEYLVCIKIAC","bugfix"],["MD3W5IRAC6UQALQE4LJC52VQNDO3I3HXF3XE2XHDABXBYJBUVAXQC","new fork: rip out drawing support"],["TLOAPLBJPPBAROMWGXUK6JIFEIR222YAB4JOYCARGAYDIOZDXSBQC","add a license"],["6LJZN727CRPYR34LV75CQF55YZI3E7MGESYZSFSYAE73SNEZE3FAC","handle chords"],["6VXO3ZL3P7NCX2SEOUDCTTRB4J46G5RXVTUYXFJBLNZA23I2ZZYQC","just keep the cursor visible after any input events"],["2Y7YH7UPQWDNYDJN4BYY2MOHA36B2BIRX6DMIAKHJPQC7UP2R6NQC","infrastructure for caching LÖVE text objects"],["EMHRPJ3RAVIVJEQIRXIVDGENV6QHUUGXXRWTJ3BXC7SZNC66VK5QC","no, that's not right"],["Z6HI3K55DX3BK25SGJ5B5KYGNRPV6WH65QLN65BFPWD7L6WB7IHQC","correct a comment"],["KVHUFUFVOSY6GB4XI2QK4T4WCLIYOV3NZR67TX6AQHAQDWJMEOBQC","reorg"],["3QQZ7W4EJ7G4HQM5IYWXICMAHVRGERY4X6AOC6LOV5NSZ4OBICSAC","bring couple more globals back to the app level"],["JCSLDGAH2F6AIY4Z6XM6K4LOMW7EFY3E4NF5YXLMHLTYTX3A4Z3QC","beginnings of support for multiple shapes"],["CA5T33FG4HYQTI4LUHAVEPYCGLZETTGWJNS4PVGQ6JCPJBOLNQGQC","one more implication"],["7M7LS7I2QT6AFZ6RVK5KK2CZ6SNJAMQIWD7MX34F7MQ3MZKH72GAC","start saving some settings to disk on quit"],["4AXV2HG4NMAHAWGWD35V5PXULNORCBEKY65UQT37XNYXCSB7TWEAC","all pending manual tests done!"],["M6TH7VSZQGKDB7SFNN5K52WWAX5VTVNT6GOKNKTXPVZBT6NEYDOQC","rip out notion of Line_width"],["BJ5X5O4ACBBJ56LRBBSTCW6IBQP4HAEOOOPNH3SKTA4F66YTOIDAC","let's prevent the text cursor from ever getting on a drawing"],["UH4YWHW5NDKNR7RS664UG4PRJNZIPNWAD5JWBEUB22JHOY2SWZKAC","button framework is at the app level"],["YGCT2D2ORMLTBHANLGHZV3EBGGHD7ZK55UAM7HF2AVSHDXAAKK5QC","start loading settings as applicable"],["RSZD5A7GI5MISRTDFFJ63VUSFUFF3R7SXA66J64CBHWHNEUBMICQC","forgot to add json.lua"],["UHB4GARJI5AB5UCDCZRFSCJNXGJSLU5DYGUGX5ITYEXI7Q43Z4CAC","left/right margin -> left/right coordinates"],["5F54FYKIMKS6TBV23M2GZ6N55VGHPBN66RO5XQS7ZY2GDZSSUJQAC","Merge lines.love"],["YMH3YXXIVI7SIHH3PCWA7GQ374VVRLTQ74XTQEV22ZYUO5A4OGHQC","title"],["HFI2YR2CWHWTAIQMDM6HIHHBUKQ74WA2QXW72PSKZWKHSVFWLKSQC","rip out geometry commandline arg"],["IFGAJAF7UWM236QV4NWP2C67TJPQGXNBC2RTZCOWPJUJYYC2MMXAC","add a level of indirection to vertices of shapes"],["7PZ4CQFVYUMSJKVCNM75VKK5JCUYU6ICHWPZXXIC3S63YJVFCP5QC","search: transparently handle drawings everywhere"],["4CTZOJPCTWYUSHLIZZJ2M5W7S4JZFZVT5MUU5XNSOIBS5L4UY5UQC","stop pretending globals are local"],["FS2ITYYHBLFT66YUC3ENPFYI2HOYHOVEPQIN7NQR6KF5MEK4NKZAC","record a known issue"],["VO3GEIRWVBJSBMJJHHCIL3UJ3TVGGSX2QT74X276JY7JFGSC4LVAC","use app name in window title"],["VXORMHME4X64HL6AC7BVYMSYEAYASG6RENGUZ7PEIZ4YQJ7ZHBIQC","delete experimental REPL"],["W4UVZETRKOSWDPLAM5LGAPCQEJWIVFCXUJDVZQASEIKALYEU34KAC","2 regressions:"],["XSLCFVFHBXYPJDGOFULVB7UAWQY5CRDY4QKKHDXSZTSVLCHDL54QC","."],["G3VLJLDHTVRE35JLU3DYRIIHDFE4BAPSMHO3UQZ4W4BDE56LVYVQC","use the background color"],["32V6ZHQBHMVAY66WO5FAHXPY6W6PWNAURIRNN3S63YUCL5LCH4LAC","Merge lines.love"],["3HDWCPDIQ2R7N63GQIABVE5L63U42CLKNLVJQFKBOZH4BMJQA5XAC","bugfix: include shift keys in modifier_down"],["ZLJGZYQGQ2S4UFWTVF4PQDSGMP6A4IS4GDHCMBAAA5SK2N2NWR3QC","select text with shift + mouseclick"],["XX7G2FFJ4QCGQGD4REAW5QFHVYAKCFUPGZCK7L6DFGS5ISVBYBQQC","intermingle freehand line drawings with text"],["Z4XRNDTRTGSZHNB65WNHOVUBFW4QWQABLVSK4RM3QJHGK33DMRJAC","find text"],["JRLBUB6LR2JIAKVQNKF3T4BDICUIJ3HEMRRHX56YP5M5SP7ZS3WAC","more intuitive point delete from polygons"],["OGUV4HSA7XGSQLUVWBAE3AE263Z7Z6G3BZOB4CN2AOYD2DEJMOZAC","remove some memory leaks from rendered fragments"],["BW2IUB3KA4AKD35DYLCUCUM4Z32FMKGZNUBQBAEDIQJJYPA547MAC","keep all text cache writes inside text.lua"],["BLWAYPKV3MLDZ4ALXLUJ25AIR6PCIL4RFYNRYLB26GFVC2KQBYBAC","extract a module"],["5FW7YOFTLKHRND6IOR4HG4X3C5BO2WV5KTEUW3PPKCRU5L5GXKXQC","highlight selection while dragging"],["4QQBMWLLIA42YP6FBFC445ABQH62RRJBL5KKILTERJALPOJCYK4QC","regression: typing uppercase letters in text"],["DJGC4ZEFQZAAKF3YWQKHMHAP2KANFVQ2H7KWAC4PU3HPHP6WLSOAC","simplify hysteresis logic"],["T4FRZSYLUWDA4K3URU4MI33EGD4XWSM7FPSIRNMAEYQAFEDFGPZAC","delete an ancient, unused file"],["ELIVOJ4NG3XKL4X2D3WYUPAPPZPDT7QL6F55Y4ZZYNBX4WORU6ZAC","bugfix: zoom in/out hotkeys"],["SDRXK4X5R6KBAFZTFWKTC7375HVVVPSTCDJVAYWSNUSHSKD242GQC","move"],["AVQ5MC5DWNLI6LUUIPGBLGP4LKRPGWBY4THNY25OBT2FAVHC6MCAC","finish uppercasing all globals"],["K2X6G75Z6XBC4DVIRWC5HC7XA3A2SKOM3MWSQTCFEYWIJL7LME2QC","start writing some tests for drawings"],["CIQN2MDEMWAASJAHOHMUZTI5PF4JV5SZSOBYYDCIIFYO2VHWULKAC","bugfix: typing a capital letter deletes selection"],["ETM7ENJRMQ3PFPGIKTEDCOTFW7LBOLE2YGIJCWSZB67ENAZGEHZQC","some helpers"],["2L5MEZV344TOZLVY3432RHJFIRVXFD6O3GWLL5O4CV66BGAFTURQC","experiment: new edit 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| FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":5,"pos":2},"to":{"change":4,"start":3457,"end":3496},"introduced_by":4},{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":4,"pos":3496},"to":{"change":4,"start":5,"end":5},"introduced_by":4}],"inode":{"change":4,"pos":5}}},"content_edges":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":4,"pos":5},"to":{"change":4,"start":6,"end":3456},"introduced_by":4}],"inode":{"change":4,"pos":5}},"content":[{"Del":"-- undo/redo by managing the sequence of events in the current session\n-- based on https://github.com/akkartik/mu1/blob/master/edit/012-editor-undo.mu\n\n-- Incredibly inefficient; we make a copy of lines on every single keystroke.\n-- The hope here is that we're either editing small files or just reading large files.\n-- TODO: highlight stuff inserted by any undo/redo operation\n-- TODO: coalesce multiple similar operations\n\nfunction record_undo_event(State, data)\n State.history[State.next_history] = data\n State.next_history = State.next_history+1\n for i=State.next_history,#State.history do\n State.history[i] = nil\n end\nend\n\nfunction undo_event(State)\n if State.next_history > 1 then\n--? print('moving to history', State.next_history-1)\n State.next_history = State.next_history-1\n local result = State.history[State.next_history]\n return result\n end\nend\n\nfunction redo_event(State)\n if State.next_history <= #State.history then\n--? print('restoring history', State.next_history+1)\n local result = State.history[State.next_history]\n State.next_history = State.next_history+1\n return result\n end\nend\n\n-- Copy all relevant global state.\n-- Make copies of objects; the rest of the app may mutate them in place, but undo requires immutable histories.\nfunction snapshot(State, s,e)\n -- Snapshot everything by default, but subset if requested.\n assert(s)\n if e == nil then\n e = s\n end\n assert(#State.lines > 0)\n if s < 1 then s = 1 end\n if s > #State.lines then s = #State.lines end\n if e < 1 then e = 1 end\n if e > #State.lines then e = #State.lines end\n -- compare with App.initialize_globals\n local event = {\n screen_top=deepcopy(State.screen_top1),\n selection=deepcopy(State.selection1),\n cursor=deepcopy(State.cursor1),\n lines={},\n start_line=s,\n end_line=e,\n -- no filename; undo history is cleared when filename changes\n }\n -- deep copy lines without cached stuff like text fragments\n for i=s,e do\n local line = State.lines[i]\n table.insert(event.lines, {data=line.data, dataB=line.dataB})\n end\n return event\nend\n\nfunction patch(lines, from, to)\n--? if #from.lines == 1 and #to.lines == 1 then\n--? assert(from.start_line == from.end_line)\n--? assert(to.start_line == to.end_line)\n--? assert(from.start_line == to.start_line)\n--? lines[from.start_line] = to.lines[1]\n--? return\n--? end\n assert(from.start_line == to.start_line)\n for i=from.end_line,from.start_line,-1 do\n table.remove(lines, i)\n end\n assert(#to.lines == to.end_line-to.start_line+1)\n for i=1,#to.lines do\n table.insert(lines, to.start_line+i-1, to.lines[i])\n end\nend\n\nfunction patch_placeholders(line_cache, from, to)\n assert(from.start_line == to.start_line)\n for i=from.end_line,from.start_line,-1 do\n table.remove(line_cache, i)\n end\n assert(#to.lines == to.end_line-to.start_line+1)\n for i=1,#to.lines do\n table.insert(line_cache, to.start_line+i-1, {})\n end\nend\n\n-- https://stackoverflow.com/questions/640642/how-do-you-copy-a-lua-table-by-value/26367080#26367080\nfunction deepcopy(obj, seen)\n if type(obj) ~= 'table' then return obj end\n if seen and seen[obj] then return seen[obj] end\n local s = seen or {}\n local result = setmetatable({}, getmetatable(obj))\n s[obj] = result\n for k,v in pairs(obj) do\n result[deepcopy(k, s)] = deepcopy(v, s)\n end\n return result\nend\n\nfunction minmax(a, b)\n return math.min(a,b), math.max(a,b)\nend\n"}]}},{"FileDel":{"deleted_names":[{"basename":"source_text_tests.lua","metadata":0}],"del":{"EdgeMap":{"edges":[{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":5,"pos":2},"to":{"change":4,"start":83676,"end":83721},"introduced_by":4},{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":4,"pos":83721},"to":{"change":4,"start":3498,"end":3498},"introduced_by":4}],"inode":{"change":4,"pos":3498}}},"content_edges":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":4,"pos":3498},"to":{"change":4,"start":3499,"end":83675},"introduced_by":4}],"inode":{"change":4,"pos":3498}},"content":[{"Del":"-- major tests for text editing flows\n\nfunction test_initial_state()\n io.write('\\ntest_initial_state')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{}\n Text.redraw_all(Editor_state)\n edit.draw(Editor_state)\n check_eq(#Editor_state.lines, 1, 'F - test_initial_state/#lines')\n check_eq(Editor_state.cursor1.line, 1, 'F - test_initial_state/cursor:line')\n check_eq(Editor_state.cursor1.pos, 1, 'F - test_initial_state/cursor:pos')\n check_eq(Editor_state.screen_top1.line, 1, 'F - test_initial_state/screen_top:line')\n check_eq(Editor_state.screen_top1.pos, 1, 'F - test_initial_state/screen_top:pos')\nend\n\nfunction test_backspace_from_start_of_final_line()\n io.write('\\ntest_backspace_from_start_of_final_line')\n -- display final line of text with cursor at start of it\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def'}\n Editor_state.screen_top1 = {line=2, pos=1}\n Editor_state.cursor1 = {line=2, pos=1}\n Text.redraw_all(Editor_state)\n -- backspace scrolls up\n edit.run_after_keychord(Editor_state, 'backspace')\n check_eq(#Editor_state.lines, 1, 'F - test_backspace_from_start_of_final_line/#lines')\n check_eq(Editor_state.cursor1.line, 1, 'F - test_backspace_from_start_of_final_line/cursor')\n check_eq(Editor_state.screen_top1.line, 1, 'F - test_backspace_from_start_of_final_line/screen_top')\nend\n\nfunction test_insert_first_character()\n io.write('\\ntest_insert_first_character')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{}\n Text.redraw_all(Editor_state)\n edit.draw(Editor_state)\n edit.run_after_textinput(Editor_state, 'a')\n local y = Editor_state.top\n App.screen.check(y, 'a', 'F - test_insert_first_character/screen:1')\nend\n\nfunction test_press_ctrl()\n io.write('\\ntest_press_ctrl')\n -- press ctrl while the cursor is on text\n App.screen.init{width=50, height=80}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{''}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.run_after_keychord(Editor_state, 'C-m')\nend\n\nfunction test_move_left()\n io.write('\\ntest_move_left')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'a'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=2}\n edit.draw(Editor_state)\n edit.run_after_keychord(Editor_state, 'left')\n check_eq(Editor_state.cursor1.pos, 1, 'F - test_move_left')\nend\n\nfunction test_move_right()\n io.write('\\ntest_move_right')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'a'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=1}\n edit.draw(Editor_state)\n edit.run_after_keychord(Editor_state, 'right')\n check_eq(Editor_state.cursor1.pos, 2, 'F - test_move_right')\nend\n\nfunction test_move_left_to_previous_line()\n io.write('\\ntest_move_left_to_previous_line')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=2, pos=1}\n edit.draw(Editor_state)\n edit.run_after_keychord(Editor_state, 'left')\n check_eq(Editor_state.cursor1.line, 1, 'F - test_move_left_to_previous_line/line')\n check_eq(Editor_state.cursor1.pos, 4, 'F - test_move_left_to_previous_line/pos') -- past end of line\nend\n\nfunction test_move_right_to_next_line()\n io.write('\\ntest_move_right_to_next_line')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=4} -- past end of line\n edit.draw(Editor_state)\n edit.run_after_keychord(Editor_state, 'right')\n check_eq(Editor_state.cursor1.line, 2, 'F - test_move_right_to_next_line/line')\n check_eq(Editor_state.cursor1.pos, 1, 'F - test_move_right_to_next_line/pos')\nend\n\nfunction test_move_to_start_of_word()\n io.write('\\ntest_move_to_start_of_word')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=3}\n edit.draw(Editor_state)\n edit.run_after_keychord(Editor_state, 'M-left')\n check_eq(Editor_state.cursor1.pos, 1, 'F - test_move_to_start_of_word')\nend\n\nfunction test_move_to_start_of_previous_word()\n io.write('\\ntest_move_to_start_of_previous_word')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc def'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=4} -- at the space between words\n edit.draw(Editor_state)\n edit.run_after_keychord(Editor_state, 'M-left')\n check_eq(Editor_state.cursor1.pos, 1, 'F - test_move_to_start_of_previous_word')\nend\n\nfunction test_skip_to_previous_word()\n io.write('\\ntest_skip_to_previous_word')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc def'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=5} -- at the start of second word\n edit.draw(Editor_state)\n edit.run_after_keychord(Editor_state, 'M-left')\n check_eq(Editor_state.cursor1.pos, 1, 'F - test_skip_to_previous_word')\nend\n\nfunction test_skip_past_tab_to_previous_word()\n io.write('\\ntest_skip_past_tab_to_previous_word')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc def\\tghi'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=10} -- within third word\n edit.draw(Editor_state)\n edit.run_after_keychord(Editor_state, 'M-left')\n check_eq(Editor_state.cursor1.pos, 9, 'F - test_skip_past_tab_to_previous_word')\nend\n\nfunction test_skip_multiple_spaces_to_previous_word()\n io.write('\\ntest_skip_multiple_spaces_to_previous_word')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc def'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=6} -- at the start of second word\n edit.draw(Editor_state)\n edit.run_after_keychord(Editor_state, 'M-left')\n check_eq(Editor_state.cursor1.pos, 1, 'F - test_skip_multiple_spaces_to_previous_word')\nend\n\nfunction test_move_to_start_of_word_on_previous_line()\n io.write('\\ntest_move_to_start_of_word_on_previous_line')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc def', 'ghi'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=2, pos=1}\n edit.draw(Editor_state)\n edit.run_after_keychord(Editor_state, 'M-left')\n check_eq(Editor_state.cursor1.line, 1, 'F - test_move_to_start_of_word_on_previous_line/line')\n check_eq(Editor_state.cursor1.pos, 5, 'F - test_move_to_start_of_word_on_previous_line/pos')\nend\n\nfunction test_move_past_end_of_word()\n io.write('\\ntest_move_past_end_of_word')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc def'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=1}\n edit.draw(Editor_state)\n edit.run_after_keychord(Editor_state, 'M-right')\n check_eq(Editor_state.cursor1.pos, 4, 'F - test_move_past_end_of_word')\nend\n\nfunction test_skip_to_next_word()\n io.write('\\ntest_skip_to_next_word')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc def'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=4} -- at the space between words\n edit.draw(Editor_state)\n edit.run_after_keychord(Editor_state, 'M-right')\n check_eq(Editor_state.cursor1.pos, 8, 'F - test_skip_to_next_word')\nend\n\nfunction test_skip_past_tab_to_next_word()\n io.write('\\ntest_skip_past_tab_to_next_word')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc\\tdef'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=1} -- at the space between words\n edit.draw(Editor_state)\n edit.run_after_keychord(Editor_state, 'M-right')\n check_eq(Editor_state.cursor1.pos, 4, 'F - test_skip_past_tab_to_next_word')\nend\n\nfunction test_skip_multiple_spaces_to_next_word()\n io.write('\\ntest_skip_multiple_spaces_to_next_word')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc def'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=4} -- at the start of second word\n edit.draw(Editor_state)\n edit.run_after_keychord(Editor_state, 'M-right')\n check_eq(Editor_state.cursor1.pos, 9, 'F - test_skip_multiple_spaces_to_next_word')\nend\n\nfunction test_move_past_end_of_word_on_next_line()\n io.write('\\ntest_move_past_end_of_word_on_next_line')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc def', 'ghi'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=8}\n edit.draw(Editor_state)\n edit.run_after_keychord(Editor_state, 'M-right')\n check_eq(Editor_state.cursor1.line, 2, 'F - test_move_past_end_of_word_on_next_line/line')\n check_eq(Editor_state.cursor1.pos, 4, 'F - test_move_past_end_of_word_on_next_line/pos')\nend\n\nfunction test_click_with_mouse()\n io.write('\\ntest_click_with_mouse')\n -- display two lines with cursor on one of them\n App.screen.init{width=50, height=80}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=2, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n -- click on the other line\n edit.draw(Editor_state)\n edit.run_after_mouse_click(Editor_state, Editor_state.left+8,Editor_state.top+5, 1)\n -- cursor moves\n check_eq(Editor_state.cursor1.line, 1, 'F - test_click_with_mouse/cursor:line')\nend\n\nfunction test_click_with_mouse_to_left_of_line()\n io.write('\\ntest_click_with_mouse_to_left_of_line')\n -- display a line with the cursor in the middle\n App.screen.init{width=50, height=80}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=3}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n -- click to the left of the line\n edit.draw(Editor_state)\n edit.run_after_mouse_click(Editor_state, Editor_state.left-4,Editor_state.top+5, 1)\n -- cursor moves to start of line\n check_eq(Editor_state.cursor1.line, 1, 'F - test_click_with_mouse_to_left_of_line/cursor:line')\n check_eq(Editor_state.cursor1.pos, 1, 'F - test_click_with_mouse_to_left_of_line/cursor:pos')\nend\n\nfunction test_click_with_mouse_takes_margins_into_account()\n io.write('\\ntest_click_with_mouse_takes_margins_into_account')\n -- display two lines with cursor on one of them\n App.screen.init{width=100, height=80}\n Editor_state = edit.initialize_test_state()\n Editor_state.left = 50 -- occupy only right side of screen\n Editor_state.lines = load_array{'abc', 'def'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=2, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n -- click on the other line\n edit.draw(Editor_state)\n edit.run_after_mouse_click(Editor_state, Editor_state.left+8,Editor_state.top+5, 1)\n -- cursor moves\n check_eq(Editor_state.cursor1.line, 1, 'F - test_click_with_mouse_takes_margins_into_account/cursor:line')\n check_eq(Editor_state.cursor1.pos, 2, 'F - test_click_with_mouse_takes_margins_into_account/cursor:pos')\nend\n\nfunction test_click_with_mouse_on_empty_line()\n io.write('\\ntest_click_with_mouse_on_empty_line')\n -- display two lines with the first one empty\n App.screen.init{width=50, height=80}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'', 'def'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=2, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n -- click on the empty line\n edit.draw(Editor_state)\n edit.run_after_mouse_click(Editor_state, Editor_state.left+8,Editor_state.top+5, 1)\n -- cursor moves\n check_eq(Editor_state.cursor1.line, 1, 'F - test_click_with_mouse_on_empty_line/cursor')\nend\n\nfunction test_draw_text()\n io.write('\\ntest_draw_text')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'ghi'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_draw_text/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_draw_text/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi', 'F - test_draw_text/screen:3')\nend\n\nfunction test_draw_wrapping_text()\n io.write('\\ntest_draw_wrapping_text')\n App.screen.init{width=50, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'defgh', 'xyz'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_draw_wrapping_text/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'de', 'F - test_draw_wrapping_text/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'fgh', 'F - test_draw_wrapping_text/screen:3')\nend\n\nfunction test_draw_word_wrapping_text()\n io.write('\\ntest_draw_word_wrapping_text')\n App.screen.init{width=60, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc def ghi', 'jkl'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'abc ', 'F - test_draw_word_wrapping_text/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def ', 'F - test_draw_word_wrapping_text/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi', 'F - test_draw_word_wrapping_text/screen:3')\nend\n\nfunction test_click_with_mouse_on_wrapping_line()\n io.write('\\ntest_click_with_mouse_on_wrapping_line')\n -- display two lines with cursor on one of them\n App.screen.init{width=50, height=80}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc def ghi jkl mno pqr stu'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=20}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n -- click on the other line\n edit.draw(Editor_state)\n edit.run_after_mouse_click(Editor_state, Editor_state.left+8,Editor_state.top+5, 1)\n -- cursor moves\n check_eq(Editor_state.cursor1.line, 1, 'F - test_click_with_mouse_on_wrapping_line/cursor:line')\n check_eq(Editor_state.cursor1.pos, 2, 'F - test_click_with_mouse_on_wrapping_line/cursor:pos')\nend\n\nfunction test_click_with_mouse_on_wrapping_line_takes_margins_into_account()\n io.write('\\ntest_click_with_mouse_on_wrapping_line_takes_margins_into_account')\n -- display two lines with cursor on one of them\n App.screen.init{width=100, height=80}\n Editor_state = edit.initialize_test_state()\n Editor_state.left = 50 -- occupy only right side of screen\n Editor_state.lines = load_array{'abc def ghi jkl mno pqr stu'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=20}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n -- click on the other line\n edit.draw(Editor_state)\n edit.run_after_mouse_click(Editor_state, Editor_state.left+8,Editor_state.top+5, 1)\n -- cursor moves\n check_eq(Editor_state.cursor1.line, 1, 'F - test_click_with_mouse_on_wrapping_line_takes_margins_into_account/cursor:line')\n check_eq(Editor_state.cursor1.pos, 2, 'F - test_click_with_mouse_on_wrapping_line_takes_margins_into_account/cursor:pos')\nend\n\nfunction test_draw_text_wrapping_within_word()\n -- arrange a screen line that needs to be split within a word\n io.write('\\ntest_draw_text_wrapping_within_word')\n App.screen.init{width=60, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abcd e fghijk', 'xyz'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'abcd ', 'F - test_draw_text_wrapping_within_word/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'e fgh', 'F - test_draw_text_wrapping_within_word/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ijk', 'F - test_draw_text_wrapping_within_word/screen:3')\nend\n\nfunction test_draw_wrapping_text_containing_non_ascii()\n -- draw a long line containing non-ASCII\n io.write('\\ntest_draw_wrapping_text_containing_non_ascii')\n App.screen.init{width=60, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'madam I’m adam', 'xyz'} -- notice the non-ASCII apostrophe\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'mad', 'F - test_draw_wrapping_text_containing_non_ascii/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'am I', 'F - test_draw_wrapping_text_containing_non_ascii/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, '’m a', 'F - test_draw_wrapping_text_containing_non_ascii/screen:3')\nend\n\nfunction test_click_on_wrapping_line()\n io.write('\\ntest_click_on_wrapping_line')\n -- display a wrapping line\n App.screen.init{width=75, height=80}\n Editor_state = edit.initialize_test_state()\n -- 12345678901234\n Editor_state.lines = load_array{\"madam I'm adam\"}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'madam ', 'F - test_click_on_wrapping_line/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, \"I'm ad\", 'F - test_click_on_wrapping_line/baseline/screen:2')\n y = y + Editor_state.line_height\n -- click past end of second screen line\n edit.run_after_mouse_click(Editor_state, App.screen.width-2,y-2, 1)\n -- cursor moves to end of screen line\n check_eq(Editor_state.cursor1.line, 1, 'F - test_click_on_wrapping_line/cursor:line')\n check_eq(Editor_state.cursor1.pos, 12, 'F - test_click_on_wrapping_line/cursor:pos')\nend\n\nfunction test_click_on_wrapping_line_rendered_from_partway_at_top_of_screen()\n io.write('\\ntest_click_on_wrapping_line_rendered_from_partway_at_top_of_screen')\n -- display a wrapping line from its second screen line\n App.screen.init{width=75, height=80}\n Editor_state = edit.initialize_test_state()\n -- 12345678901234\n Editor_state.lines = load_array{\"madam I'm adam\"}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=8}\n Editor_state.screen_top1 = {line=1, pos=7}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, \"I'm ad\", 'F - test_click_on_wrapping_line_rendered_from_partway_at_top_of_screen/baseline/screen:2')\n y = y + Editor_state.line_height\n -- click past end of second screen line\n edit.run_after_mouse_click(Editor_state, App.screen.width-2,y-2, 1)\n -- cursor moves to end of screen line\n check_eq(Editor_state.cursor1.line, 1, 'F - test_click_on_wrapping_line_rendered_from_partway_at_top_of_screen/cursor:line')\n check_eq(Editor_state.cursor1.pos, 12, 'F - test_click_on_wrapping_line_rendered_from_partway_at_top_of_screen/cursor:pos')\nend\n\nfunction test_click_past_end_of_wrapping_line()\n io.write('\\ntest_click_past_end_of_wrapping_line')\n -- display a wrapping line\n App.screen.init{width=75, height=80}\n Editor_state = edit.initialize_test_state()\n -- 12345678901234\n Editor_state.lines = load_array{\"madam I'm adam\"}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'madam ', 'F - test_click_past_end_of_wrapping_line/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, \"I'm ad\", 'F - test_click_past_end_of_wrapping_line/baseline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'am', 'F - test_click_past_end_of_wrapping_line/baseline/screen:3')\n y = y + Editor_state.line_height\n -- click past the end of it\n edit.run_after_mouse_click(Editor_state, App.screen.width-2,y-2, 1)\n -- cursor moves to end of line\n 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\nend\n\nfunction test_click_past_end_of_wrapping_line_containing_non_ascii()\n io.write('\\ntest_click_past_end_of_wrapping_line_containing_non_ascii')\n -- display a wrapping line containing non-ASCII\n App.screen.init{width=75, height=80}\n Editor_state = edit.initialize_test_state()\n -- 12345678901234\n Editor_state.lines = load_array{'madam I’m adam'} -- notice the non-ASCII apostrophe\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'madam ', 'F - test_click_past_end_of_wrapping_line_containing_non_ascii/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'I’m ad', 'F - test_click_past_end_of_wrapping_line_containing_non_ascii/baseline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'am', 'F - test_click_past_end_of_wrapping_line_containing_non_ascii/baseline/screen:3')\n y = y + Editor_state.line_height\n -- click past the end of it\n edit.run_after_mouse_click(Editor_state, App.screen.width-2,y-2, 1)\n -- cursor moves to end of line\n 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\nend\n\nfunction test_click_past_end_of_word_wrapping_line()\n io.write('\\ntest_click_past_end_of_word_wrapping_line')\n -- display a long line wrapping at a word boundary on a screen of more realistic length\n App.screen.init{width=160, height=80}\n Editor_state = edit.initialize_test_state()\n -- 0 1 2\n -- 123456789012345678901\n Editor_state.lines = load_array{'the quick brown fox jumped over the lazy dog'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'the quick brown fox ', 'F - test_click_past_end_of_word_wrapping_line/baseline/screen:1')\n y = y + Editor_state.line_height\n -- click past the end of the screen line\n edit.run_after_mouse_click(Editor_state, App.screen.width-2,y-2, 1)\n -- cursor moves to end of screen line\n check_eq(Editor_state.cursor1.pos, 20, 'F - test_click_past_end_of_word_wrapping_line/cursor')\nend\n\nfunction test_edit_wrapping_text()\n io.write('\\ntest_edit_wrapping_text')\n App.screen.init{width=50, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'xyz'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=2, pos=4}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n edit.run_after_textinput(Editor_state, 'g')\n local y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_edit_wrapping_text/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'de', 'F - test_edit_wrapping_text/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'fg', 'F - test_edit_wrapping_text/screen:3')\nend\n\nfunction test_insert_newline()\n io.write('\\ntest_insert_newline')\n -- display a few lines\n App.screen.init{width=Editor_state.left+30, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=2}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_insert_newline/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_insert_newline/baseline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi', 'F - test_insert_newline/baseline/screen:3')\n -- hitting the enter key splits the line\n edit.run_after_keychord(Editor_state, 'return')\n check_eq(Editor_state.screen_top1.line, 1, 'F - test_insert_newline/screen_top')\n check_eq(Editor_state.cursor1.line, 2, 'F - test_insert_newline/cursor:line')\n check_eq(Editor_state.cursor1.pos, 1, 'F - test_insert_newline/cursor:pos')\n y = Editor_state.top\n App.screen.check(y, 'a', 'F - test_insert_newline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'bc', 'F - test_insert_newline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_insert_newline/screen:3')\nend\n\nfunction test_insert_newline_at_start_of_line()\n io.write('\\ntest_insert_newline_at_start_of_line')\n -- display a line\n App.screen.init{width=Editor_state.left+30, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n -- hitting the enter key splits the line\n edit.run_after_keychord(Editor_state, 'return')\n check_eq(Editor_state.cursor1.line, 2, 'F - test_insert_newline_at_start_of_line/cursor:line')\n check_eq(Editor_state.cursor1.pos, 1, 'F - test_insert_newline_at_start_of_line/cursor:pos')\n check_eq(Editor_state.lines[1].data, '', 'F - test_insert_newline_at_start_of_line/data:1')\n check_eq(Editor_state.lines[2].data, 'abc', 'F - test_insert_newline_at_start_of_line/data:2')\nend\n\nfunction test_insert_from_clipboard()\n io.write('\\ntest_insert_from_clipboard')\n -- display a few lines\n App.screen.init{width=Editor_state.left+30, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=2}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_insert_from_clipboard/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_insert_from_clipboard/baseline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi', 'F - test_insert_from_clipboard/baseline/screen:3')\n -- paste some text including a newline, check that new line is created\n App.clipboard = 'xy\\nz'\n edit.run_after_keychord(Editor_state, 'C-v')\n check_eq(Editor_state.screen_top1.line, 1, 'F - test_insert_from_clipboard/screen_top')\n check_eq(Editor_state.cursor1.line, 2, 'F - test_insert_from_clipboard/cursor:line')\n check_eq(Editor_state.cursor1.pos, 2, 'F - test_insert_from_clipboard/cursor:pos')\n y = Editor_state.top\n App.screen.check(y, 'axy', 'F - test_insert_from_clipboard/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'zbc', 'F - test_insert_from_clipboard/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_insert_from_clipboard/screen:3')\nend\n\nfunction test_move_cursor_using_mouse()\n io.write('\\ntest_move_cursor_using_mouse')\n App.screen.init{width=50, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'xyz'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state) -- populate line_cache.starty for each line Editor_state.line_cache\n edit.run_after_mouse_press(Editor_state, Editor_state.left+8,Editor_state.top+5, 1)\n check_eq(Editor_state.cursor1.line, 1, 'F - test_move_cursor_using_mouse/cursor:line')\n check_eq(Editor_state.cursor1.pos, 2, 'F - test_move_cursor_using_mouse/cursor:pos')\nend\n\nfunction test_pagedown()\n io.write('\\ntest_pagedown')\n App.screen.init{width=120, height=45}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'ghi'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n -- initially the first two lines are displayed\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_pagedown/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_pagedown/baseline/screen:2')\n -- after pagedown the bottom line becomes the top\n edit.run_after_keychord(Editor_state, 'pagedown')\n check_eq(Editor_state.screen_top1.line, 2, 'F - test_pagedown/screen_top')\n check_eq(Editor_state.cursor1.line, 2, 'F - test_pagedown/cursor')\n y = Editor_state.top\n App.screen.check(y, 'def', 'F - test_pagedown/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi', 'F - test_pagedown/screen:2')\nend\n\nfunction test_pagedown_can_start_from_middle_of_long_wrapping_line()\n io.write('\\ntest_pagedown_can_start_from_middle_of_long_wrapping_line')\n -- draw a few lines starting from a very long wrapping line\n App.screen.init{width=Editor_state.left+30, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc def ghi jkl mno pqr stu vwx yza bcd efg hij', 'XYZ'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=2}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'abc ', 'F - test_pagedown_can_start_from_middle_of_long_wrapping_line/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def ', 'F - test_pagedown_can_start_from_middle_of_long_wrapping_line/baseline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi ', 'F - test_pagedown_can_start_from_middle_of_long_wrapping_line/baseline/screen:3')\n -- after pagedown we scroll down the very long wrapping line\n edit.run_after_keychord(Editor_state, 'pagedown')\n check_eq(Editor_state.screen_top1.line, 1, 'F - test_pagedown_can_start_from_middle_of_long_wrapping_line/screen_top:line')\n check_eq(Editor_state.screen_top1.pos, 9, 'F - test_pagedown_can_start_from_middle_of_long_wrapping_line/screen_top:pos')\n y = Editor_state.top\n App.screen.check(y, 'ghi ', 'F - test_pagedown_can_start_from_middle_of_long_wrapping_line/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'jkl ', 'F - test_pagedown_can_start_from_middle_of_long_wrapping_line/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'mno ', 'F - test_pagedown_can_start_from_middle_of_long_wrapping_line/screen:3')\nend\n\nfunction test_pagedown_never_moves_up()\n io.write('\\ntest_pagedown_never_moves_up')\n -- draw the final screen line of a wrapping line\n App.screen.init{width=Editor_state.left+30, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc def ghi'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=9}\n Editor_state.screen_top1 = {line=1, pos=9}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n -- pagedown makes no change\n edit.run_after_keychord(Editor_state, 'pagedown')\n check_eq(Editor_state.screen_top1.line, 1, 'F - test_pagedown_never_moves_up/screen_top:line')\n check_eq(Editor_state.screen_top1.pos, 9, 'F - test_pagedown_never_moves_up/screen_top:pos')\nend\n\nfunction test_down_arrow_moves_cursor()\n io.write('\\ntest_down_arrow_moves_cursor')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n -- initially the first three lines are displayed\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_down_arrow_moves_cursor/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_down_arrow_moves_cursor/baseline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi', 'F - test_down_arrow_moves_cursor/baseline/screen:3')\n -- after hitting the down arrow, the cursor moves down by 1 line\n edit.run_after_keychord(Editor_state, 'down')\n check_eq(Editor_state.screen_top1.line, 1, 'F - test_down_arrow_moves_cursor/screen_top')\n check_eq(Editor_state.cursor1.line, 2, 'F - test_down_arrow_moves_cursor/cursor')\n -- the screen is unchanged\n y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_down_arrow_moves_cursor/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_down_arrow_moves_cursor/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi', 'F - test_down_arrow_moves_cursor/screen:3')\nend\n\nfunction test_down_arrow_scrolls_down_by_one_line()\n io.write('\\ntest_down_arrow_scrolls_down_by_one_line')\n -- display the first three lines with the cursor on the bottom line\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=3, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_down_arrow_scrolls_down_by_one_line/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_line/baseline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi', 'F - test_down_arrow_scrolls_down_by_one_line/baseline/screen:3')\n -- after hitting the down arrow the screen scrolls down by one line\n edit.run_after_keychord(Editor_state, 'down')\n check_eq(Editor_state.screen_top1.line, 2, 'F - test_down_arrow_scrolls_down_by_one_line/screen_top')\n check_eq(Editor_state.cursor1.line, 4, 'F - test_down_arrow_scrolls_down_by_one_line/cursor')\n y = Editor_state.top\n App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_line/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi', 'F - test_down_arrow_scrolls_down_by_one_line/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'jkl', 'F - test_down_arrow_scrolls_down_by_one_line/screen:3')\nend\n\nfunction test_down_arrow_scrolls_down_by_one_screen_line()\n io.write('\\ntest_down_arrow_scrolls_down_by_one_screen_line')\n -- display the first three lines with the cursor on the bottom line\n App.screen.init{width=Editor_state.left+30, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=3, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_down_arrow_scrolls_down_by_one_screen_line/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_screen_line/baseline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi ', 'F - test_down_arrow_scrolls_down_by_one_screen_line/baseline/screen:3') -- line wrapping includes trailing whitespace\n -- after hitting the down arrow the screen scrolls down by one line\n edit.run_after_keychord(Editor_state, 'down')\n check_eq(Editor_state.screen_top1.line, 2, 'F - test_down_arrow_scrolls_down_by_one_screen_line/screen_top')\n check_eq(Editor_state.cursor1.line, 3, 'F - test_down_arrow_scrolls_down_by_one_screen_line/cursor:line')\n check_eq(Editor_state.cursor1.pos, 5, 'F - test_down_arrow_scrolls_down_by_one_screen_line/cursor:pos')\n y = Editor_state.top\n App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_screen_line/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi ', 'F - test_down_arrow_scrolls_down_by_one_screen_line/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'jkl', 'F - test_down_arrow_scrolls_down_by_one_screen_line/screen:3')\nend\n\nfunction test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word()\n io.write('\\ntest_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word')\n -- display the first three lines with the cursor on the bottom line\n App.screen.init{width=Editor_state.left+30, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'ghijkl', 'mno'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=3, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/baseline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghij', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/baseline/screen:3')\n -- after hitting the down arrow the screen scrolls down by one line\n edit.run_after_keychord(Editor_state, 'down')\n check_eq(Editor_state.screen_top1.line, 2, 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/screen_top')\n check_eq(Editor_state.cursor1.line, 3, 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/cursor:line')\n check_eq(Editor_state.cursor1.pos, 5, 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/cursor:pos')\n y = Editor_state.top\n App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghij', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'kl', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/screen:3')\nend\n\nfunction test_page_down_followed_by_down_arrow_does_not_scroll_screen_up()\n io.write('\\ntest_page_down_followed_by_down_arrow_does_not_scroll_screen_up')\n App.screen.init{width=Editor_state.left+30, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'ghijkl', 'mno'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=3, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghij', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline/screen:3')\n -- after hitting pagedown the screen scrolls down to start of a long line\n edit.run_after_keychord(Editor_state, 'pagedown')\n check_eq(Editor_state.screen_top1.line, 3, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline2/screen_top')\n check_eq(Editor_state.cursor1.line, 3, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline2/cursor:line')\n check_eq(Editor_state.cursor1.pos, 1, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline2/cursor:pos')\n -- after hitting down arrow the screen doesn't scroll down further, and certainly doesn't scroll up\n edit.run_after_keychord(Editor_state, 'down')\n check_eq(Editor_state.screen_top1.line, 3, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/screen_top')\n check_eq(Editor_state.cursor1.line, 3, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/cursor:line')\n check_eq(Editor_state.cursor1.pos, 5, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/cursor:pos')\n y = Editor_state.top\n App.screen.check(y, 'ghij', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'kl', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'mno', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/screen:3')\nend\n\nfunction test_up_arrow_moves_cursor()\n io.write('\\ntest_up_arrow_moves_cursor')\n -- display the first 3 lines with the cursor on the bottom line\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=3, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_up_arrow_moves_cursor/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_up_arrow_moves_cursor/baseline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi', 'F - test_up_arrow_moves_cursor/baseline/screen:3')\n -- after hitting the up arrow the cursor moves up by 1 line\n edit.run_after_keychord(Editor_state, 'up')\n check_eq(Editor_state.screen_top1.line, 1, 'F - test_up_arrow_moves_cursor/screen_top')\n check_eq(Editor_state.cursor1.line, 2, 'F - test_up_arrow_moves_cursor/cursor')\n -- the screen is unchanged\n y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_up_arrow_moves_cursor/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_up_arrow_moves_cursor/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi', 'F - test_up_arrow_moves_cursor/screen:3')\nend\n\nfunction test_up_arrow_scrolls_up_by_one_line()\n io.write('\\ntest_up_arrow_scrolls_up_by_one_line')\n -- display the lines 2/3/4 with the cursor on line 2\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=2, pos=1}\n Editor_state.screen_top1 = {line=2, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'def', 'F - test_up_arrow_scrolls_up_by_one_line/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi', 'F - test_up_arrow_scrolls_up_by_one_line/baseline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'jkl', 'F - test_up_arrow_scrolls_up_by_one_line/baseline/screen:3')\n -- after hitting the up arrow the screen scrolls up by one line\n edit.run_after_keychord(Editor_state, 'up')\n check_eq(Editor_state.screen_top1.line, 1, 'F - test_up_arrow_scrolls_up_by_one_line/screen_top')\n check_eq(Editor_state.cursor1.line, 1, 'F - test_up_arrow_scrolls_up_by_one_line/cursor')\n y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_up_arrow_scrolls_up_by_one_line/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_up_arrow_scrolls_up_by_one_line/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi', 'F - test_up_arrow_scrolls_up_by_one_line/screen:3')\nend\n\nfunction test_up_arrow_scrolls_up_by_one_screen_line()\n io.write('\\ntest_up_arrow_scrolls_up_by_one_screen_line')\n -- display lines starting from second screen line of a line\n App.screen.init{width=Editor_state.left+30, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=3, pos=6}\n Editor_state.screen_top1 = {line=3, pos=5}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'jkl', 'F - test_up_arrow_scrolls_up_by_one_screen_line/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'mno', 'F - test_up_arrow_scrolls_up_by_one_screen_line/baseline/screen:2')\n -- after hitting the up arrow the screen scrolls up to first screen line\n edit.run_after_keychord(Editor_state, 'up')\n y = Editor_state.top\n App.screen.check(y, 'ghi ', 'F - test_up_arrow_scrolls_up_by_one_screen_line/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'jkl', 'F - test_up_arrow_scrolls_up_by_one_screen_line/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'mno', 'F - test_up_arrow_scrolls_up_by_one_screen_line/screen:3')\n check_eq(Editor_state.screen_top1.line, 3, 'F - test_up_arrow_scrolls_up_by_one_screen_line/screen_top')\n check_eq(Editor_state.screen_top1.pos, 1, 'F - test_up_arrow_scrolls_up_by_one_screen_line/screen_top')\n check_eq(Editor_state.cursor1.line, 3, 'F - test_up_arrow_scrolls_up_by_one_screen_line/cursor:line')\n check_eq(Editor_state.cursor1.pos, 1, 'F - test_up_arrow_scrolls_up_by_one_screen_line/cursor:pos')\nend\n\nfunction test_up_arrow_scrolls_up_to_final_screen_line()\n io.write('\\ntest_up_arrow_scrolls_up_to_final_screen_line')\n -- display lines starting just after a long line\n App.screen.init{width=Editor_state.left+30, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc def', 'ghi', 'jkl', 'mno'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=2, pos=1}\n Editor_state.screen_top1 = {line=2, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'ghi', 'F - test_up_arrow_scrolls_up_to_final_screen_line/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'jkl', 'F - test_up_arrow_scrolls_up_to_final_screen_line/baseline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'mno', 'F - test_up_arrow_scrolls_up_to_final_screen_line/baseline/screen:3')\n -- after hitting the up arrow the screen scrolls up to final screen line of previous line\n edit.run_after_keychord(Editor_state, 'up')\n y = Editor_state.top\n App.screen.check(y, 'def', 'F - test_up_arrow_scrolls_up_to_final_screen_line/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi', 'F - test_up_arrow_scrolls_up_to_final_screen_line/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'jkl', 'F - test_up_arrow_scrolls_up_to_final_screen_line/screen:3')\n check_eq(Editor_state.screen_top1.line, 1, 'F - test_up_arrow_scrolls_up_to_final_screen_line/screen_top')\n check_eq(Editor_state.screen_top1.pos, 5, 'F - test_up_arrow_scrolls_up_to_final_screen_line/screen_top')\n check_eq(Editor_state.cursor1.line, 1, 'F - test_up_arrow_scrolls_up_to_final_screen_line/cursor:line')\n check_eq(Editor_state.cursor1.pos, 5, 'F - test_up_arrow_scrolls_up_to_final_screen_line/cursor:pos')\nend\n\nfunction test_up_arrow_scrolls_up_to_empty_line()\n io.write('\\ntest_up_arrow_scrolls_up_to_empty_line')\n -- display a screenful of text with an empty line just above it outside the screen\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'', 'abc', 'def', 'ghi', 'jkl'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=2, pos=1}\n Editor_state.screen_top1 = {line=2, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_up_arrow_scrolls_up_to_empty_line/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_up_arrow_scrolls_up_to_empty_line/baseline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi', 'F - test_up_arrow_scrolls_up_to_empty_line/baseline/screen:3')\n -- after hitting the up arrow the screen scrolls up by one line\n edit.run_after_keychord(Editor_state, 'up')\n check_eq(Editor_state.screen_top1.line, 1, 'F - test_up_arrow_scrolls_up_to_empty_line/screen_top')\n check_eq(Editor_state.cursor1.line, 1, 'F - test_up_arrow_scrolls_up_to_empty_line/cursor')\n y = Editor_state.top\n -- empty first line\n y = y + Editor_state.line_height\n App.screen.check(y, 'abc', 'F - test_up_arrow_scrolls_up_to_empty_line/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_up_arrow_scrolls_up_to_empty_line/screen:3')\nend\n\nfunction test_pageup()\n io.write('\\ntest_pageup')\n App.screen.init{width=120, height=45}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'ghi'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=2, pos=1}\n Editor_state.screen_top1 = {line=2, pos=1}\n Editor_state.screen_bottom1 = {}\n -- initially the last two lines are displayed\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'def', 'F - test_pageup/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi', 'F - test_pageup/baseline/screen:2')\n -- after pageup the cursor goes to first line\n edit.run_after_keychord(Editor_state, 'pageup')\n check_eq(Editor_state.screen_top1.line, 1, 'F - test_pageup/screen_top')\n check_eq(Editor_state.cursor1.line, 1, 'F - test_pageup/cursor')\n y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_pageup/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_pageup/screen:2')\nend\n\nfunction test_pageup_scrolls_up_by_screen_line()\n io.write('\\ntest_pageup_scrolls_up_by_screen_line')\n -- display the first three lines with the cursor on the bottom line\n App.screen.init{width=Editor_state.left+30, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc def', 'ghi', 'jkl', 'mno'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=2, pos=1}\n Editor_state.screen_top1 = {line=2, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'ghi', 'F - test_pageup_scrolls_up_by_screen_line/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'jkl', 'F - test_pageup_scrolls_up_by_screen_line/baseline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'mno', 'F - test_pageup_scrolls_up_by_screen_line/baseline/screen:3') -- line wrapping includes trailing whitespace\n -- after hitting the page-up key the screen scrolls up to top\n edit.run_after_keychord(Editor_state, 'pageup')\n check_eq(Editor_state.screen_top1.line, 1, 'F - test_pageup_scrolls_up_by_screen_line/screen_top')\n check_eq(Editor_state.cursor1.line, 1, 'F - test_pageup_scrolls_up_by_screen_line/cursor:line')\n check_eq(Editor_state.cursor1.pos, 1, 'F - test_pageup_scrolls_up_by_screen_line/cursor:pos')\n y = Editor_state.top\n App.screen.check(y, 'abc ', 'F - test_pageup_scrolls_up_by_screen_line/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_pageup_scrolls_up_by_screen_line/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi', 'F - test_pageup_scrolls_up_by_screen_line/screen:3')\nend\n\nfunction test_pageup_scrolls_up_from_middle_screen_line()\n io.write('\\ntest_pageup_scrolls_up_from_middle_screen_line')\n -- display a few lines starting from the middle of a line (Editor_state.cursor1.pos > 1)\n App.screen.init{width=Editor_state.left+30, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc def', 'ghi jkl', 'mno'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=2, pos=5}\n Editor_state.screen_top1 = {line=2, pos=5}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'jkl', 'F - test_pageup_scrolls_up_from_middle_screen_line/baseline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'mno', 'F - test_pageup_scrolls_up_from_middle_screen_line/baseline/screen:3') -- line wrapping includes trailing whitespace\n -- after hitting the page-up key the screen scrolls up to top\n edit.run_after_keychord(Editor_state, 'pageup')\n check_eq(Editor_state.screen_top1.line, 1, 'F - test_pageup_scrolls_up_from_middle_screen_line/screen_top')\n check_eq(Editor_state.cursor1.line, 1, 'F - test_pageup_scrolls_up_from_middle_screen_line/cursor:line')\n check_eq(Editor_state.cursor1.pos, 1, 'F - test_pageup_scrolls_up_from_middle_screen_line/cursor:pos')\n y = Editor_state.top\n App.screen.check(y, 'abc ', 'F - test_pageup_scrolls_up_from_middle_screen_line/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_pageup_scrolls_up_from_middle_screen_line/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi ', 'F - test_pageup_scrolls_up_from_middle_screen_line/screen:3')\nend\n\nfunction test_enter_on_bottom_line_scrolls_down()\n io.write('\\ntest_enter_on_bottom_line_scrolls_down')\n -- display a few lines with cursor on bottom line\n App.screen.init{width=Editor_state.left+30, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=3, pos=2}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_enter_on_bottom_line_scrolls_down/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_enter_on_bottom_line_scrolls_down/baseline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi', 'F - test_enter_on_bottom_line_scrolls_down/baseline/screen:3')\n -- after hitting the enter key the screen scrolls down\n edit.run_after_keychord(Editor_state, 'return')\n check_eq(Editor_state.screen_top1.line, 2, 'F - test_enter_on_bottom_line_scrolls_down/screen_top')\n check_eq(Editor_state.cursor1.line, 4, 'F - test_enter_on_bottom_line_scrolls_down/cursor:line')\n check_eq(Editor_state.cursor1.pos, 1, 'F - test_enter_on_bottom_line_scrolls_down/cursor:pos')\n y = Editor_state.top\n App.screen.check(y, 'def', 'F - test_enter_on_bottom_line_scrolls_down/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'g', 'F - test_enter_on_bottom_line_scrolls_down/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'hi', 'F - test_enter_on_bottom_line_scrolls_down/screen:3')\nend\n\nfunction test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom()\n io.write('\\ntest_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom')\n -- display just the bottom line on screen\n App.screen.init{width=Editor_state.left+30, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=4, pos=2}\n Editor_state.screen_top1 = {line=4, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'jkl', 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/baseline/screen:1')\n -- after hitting the enter key the screen does not scroll down\n edit.run_after_keychord(Editor_state, 'return')\n check_eq(Editor_state.screen_top1.line, 4, 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/screen_top')\n check_eq(Editor_state.cursor1.line, 5, 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/cursor:line')\n check_eq(Editor_state.cursor1.pos, 1, 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/cursor:pos')\n y = Editor_state.top\n App.screen.check(y, 'j', 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'kl', 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/screen:2')\nend\n\nfunction test_inserting_text_on_final_line_avoids_scrolling_down_when_not_at_bottom()\n io.write('\\ntest_inserting_text_on_final_line_avoids_scrolling_down_when_not_at_bottom')\n -- display just an empty bottom line on screen\n App.screen.init{width=Editor_state.left+30, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', ''}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=2, pos=1}\n Editor_state.screen_top1 = {line=2, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n -- after hitting the inserting_text key the screen does not scroll down\n edit.run_after_textinput(Editor_state, 'a')\n check_eq(Editor_state.screen_top1.line, 2, 'F - test_inserting_text_on_final_line_avoids_scrolling_down_when_not_at_bottom/screen_top')\n check_eq(Editor_state.cursor1.line, 2, 'F - test_inserting_text_on_final_line_avoids_scrolling_down_when_not_at_bottom/cursor:line')\n check_eq(Editor_state.cursor1.pos, 2, 'F - test_inserting_text_on_final_line_avoids_scrolling_down_when_not_at_bottom/cursor:pos')\n local y = Editor_state.top\n App.screen.check(y, 'a', 'F - test_inserting_text_on_final_line_avoids_scrolling_down_when_not_at_bottom/screen:1')\nend\n\nfunction test_typing_on_bottom_line_scrolls_down()\n io.write('\\ntest_typing_on_bottom_line_scrolls_down')\n -- display a few lines with cursor on bottom line\n App.screen.init{width=Editor_state.left+30, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=3, pos=4}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_typing_on_bottom_line_scrolls_down/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_typing_on_bottom_line_scrolls_down/baseline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi', 'F - test_typing_on_bottom_line_scrolls_down/baseline/screen:3')\n -- after typing something the line wraps and the screen scrolls down\n edit.run_after_textinput(Editor_state, 'j')\n edit.run_after_textinput(Editor_state, 'k')\n edit.run_after_textinput(Editor_state, 'l')\n check_eq(Editor_state.screen_top1.line, 2, 'F - test_typing_on_bottom_line_scrolls_down/screen_top')\n check_eq(Editor_state.cursor1.line, 3, 'F - test_typing_on_bottom_line_scrolls_down/cursor:line')\n check_eq(Editor_state.cursor1.pos, 7, 'F - test_typing_on_bottom_line_scrolls_down/cursor:pos')\n y = Editor_state.top\n App.screen.check(y, 'def', 'F - test_typing_on_bottom_line_scrolls_down/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghij', 'F - test_typing_on_bottom_line_scrolls_down/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'kl', 'F - test_typing_on_bottom_line_scrolls_down/screen:3')\nend\n\nfunction test_left_arrow_scrolls_up_in_wrapped_line()\n io.write('\\ntest_left_arrow_scrolls_up_in_wrapped_line')\n -- display lines starting from second screen line of a line\n App.screen.init{width=Editor_state.left+30, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}\n Text.redraw_all(Editor_state)\n Editor_state.screen_top1 = {line=3, pos=5}\n Editor_state.screen_bottom1 = {}\n -- cursor is at top of screen\n Editor_state.cursor1 = {line=3, pos=5}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'jkl', 'F - test_left_arrow_scrolls_up_in_wrapped_line/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'mno', 'F - test_left_arrow_scrolls_up_in_wrapped_line/baseline/screen:2')\n -- after hitting the left arrow the screen scrolls up to first screen line\n edit.run_after_keychord(Editor_state, 'left')\n y = Editor_state.top\n App.screen.check(y, 'ghi ', 'F - test_left_arrow_scrolls_up_in_wrapped_line/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'jkl', 'F - test_left_arrow_scrolls_up_in_wrapped_line/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'mno', 'F - test_left_arrow_scrolls_up_in_wrapped_line/screen:3')\n check_eq(Editor_state.screen_top1.line, 3, 'F - test_left_arrow_scrolls_up_in_wrapped_line/screen_top')\n check_eq(Editor_state.screen_top1.pos, 1, 'F - test_left_arrow_scrolls_up_in_wrapped_line/screen_top')\n check_eq(Editor_state.cursor1.line, 3, 'F - test_left_arrow_scrolls_up_in_wrapped_line/cursor:line')\n check_eq(Editor_state.cursor1.pos, 4, 'F - test_left_arrow_scrolls_up_in_wrapped_line/cursor:pos')\nend\n\nfunction test_right_arrow_scrolls_down_in_wrapped_line()\n io.write('\\ntest_right_arrow_scrolls_down_in_wrapped_line')\n -- display the first three lines with the cursor on the bottom line\n App.screen.init{width=Editor_state.left+30, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}\n Text.redraw_all(Editor_state)\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n -- cursor is at bottom right of screen\n Editor_state.cursor1 = {line=3, pos=5}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_right_arrow_scrolls_down_in_wrapped_line/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_right_arrow_scrolls_down_in_wrapped_line/baseline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi ', 'F - test_right_arrow_scrolls_down_in_wrapped_line/baseline/screen:3') -- line wrapping includes trailing whitespace\n -- after hitting the right arrow the screen scrolls down by one line\n edit.run_after_keychord(Editor_state, 'right')\n check_eq(Editor_state.screen_top1.line, 2, 'F - test_right_arrow_scrolls_down_in_wrapped_line/screen_top')\n check_eq(Editor_state.cursor1.line, 3, 'F - test_right_arrow_scrolls_down_in_wrapped_line/cursor:line')\n check_eq(Editor_state.cursor1.pos, 6, 'F - test_right_arrow_scrolls_down_in_wrapped_line/cursor:pos')\n y = Editor_state.top\n App.screen.check(y, 'def', 'F - test_right_arrow_scrolls_down_in_wrapped_line/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi ', 'F - test_right_arrow_scrolls_down_in_wrapped_line/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'jkl', 'F - test_right_arrow_scrolls_down_in_wrapped_line/screen:3')\nend\n\nfunction test_home_scrolls_up_in_wrapped_line()\n io.write('\\ntest_home_scrolls_up_in_wrapped_line')\n -- display lines starting from second screen line of a line\n App.screen.init{width=Editor_state.left+30, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}\n Text.redraw_all(Editor_state)\n Editor_state.screen_top1 = {line=3, pos=5}\n Editor_state.screen_bottom1 = {}\n -- cursor is at top of screen\n Editor_state.cursor1 = {line=3, pos=5}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'jkl', 'F - test_home_scrolls_up_in_wrapped_line/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'mno', 'F - test_home_scrolls_up_in_wrapped_line/baseline/screen:2')\n -- after hitting home the screen scrolls up to first screen line\n edit.run_after_keychord(Editor_state, 'home')\n y = Editor_state.top\n App.screen.check(y, 'ghi ', 'F - test_home_scrolls_up_in_wrapped_line/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'jkl', 'F - test_home_scrolls_up_in_wrapped_line/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'mno', 'F - test_home_scrolls_up_in_wrapped_line/screen:3')\n check_eq(Editor_state.screen_top1.line, 3, 'F - test_home_scrolls_up_in_wrapped_line/screen_top')\n check_eq(Editor_state.screen_top1.pos, 1, 'F - test_home_scrolls_up_in_wrapped_line/screen_top')\n check_eq(Editor_state.cursor1.line, 3, 'F - test_home_scrolls_up_in_wrapped_line/cursor:line')\n check_eq(Editor_state.cursor1.pos, 1, 'F - test_home_scrolls_up_in_wrapped_line/cursor:pos')\nend\n\nfunction test_end_scrolls_down_in_wrapped_line()\n io.write('\\ntest_end_scrolls_down_in_wrapped_line')\n -- display the first three lines with the cursor on the bottom line\n App.screen.init{width=Editor_state.left+30, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}\n Text.redraw_all(Editor_state)\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n -- cursor is at bottom right of screen\n Editor_state.cursor1 = {line=3, pos=5}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_end_scrolls_down_in_wrapped_line/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_end_scrolls_down_in_wrapped_line/baseline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi ', 'F - test_end_scrolls_down_in_wrapped_line/baseline/screen:3') -- line wrapping includes trailing whitespace\n -- after hitting end the screen scrolls down by one line\n edit.run_after_keychord(Editor_state, 'end')\n check_eq(Editor_state.screen_top1.line, 2, 'F - test_end_scrolls_down_in_wrapped_line/screen_top')\n check_eq(Editor_state.cursor1.line, 3, 'F - test_end_scrolls_down_in_wrapped_line/cursor:line')\n check_eq(Editor_state.cursor1.pos, 8, 'F - test_end_scrolls_down_in_wrapped_line/cursor:pos')\n y = Editor_state.top\n App.screen.check(y, 'def', 'F - test_end_scrolls_down_in_wrapped_line/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi ', 'F - test_end_scrolls_down_in_wrapped_line/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'jkl', 'F - test_end_scrolls_down_in_wrapped_line/screen:3')\nend\n\nfunction test_position_cursor_on_recently_edited_wrapping_line()\n -- draw a line wrapping over 2 screen lines\n io.write('\\ntest_position_cursor_on_recently_edited_wrapping_line')\n App.screen.init{width=100, height=200}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc def ghi jkl mno pqr ', 'xyz'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=25}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'abc def ghi ', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline1/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'jkl mno pqr ', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline1/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'xyz', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline1/screen:3')\n -- add to the line until it's wrapping over 3 screen lines\n edit.run_after_textinput(Editor_state, 's')\n edit.run_after_textinput(Editor_state, 't')\n edit.run_after_textinput(Editor_state, 'u')\n check_eq(Editor_state.cursor1.pos, 28, 'F - test_position_cursor_on_recently_edited_wrapping_line/cursor:pos')\n y = Editor_state.top\n App.screen.check(y, 'abc def ghi ', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline2/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'jkl mno pqr ', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline2/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'stu', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline2/screen:3')\n -- try to move the cursor earlier in the third screen line by clicking the mouse\n edit.run_after_mouse_press(Editor_state, Editor_state.left+8,Editor_state.top+Editor_state.line_height*2+5, 1)\n -- cursor should move\n check_eq(Editor_state.cursor1.line, 1, 'F - test_position_cursor_on_recently_edited_wrapping_line/cursor:line')\n check_eq(Editor_state.cursor1.pos, 26, 'F - test_position_cursor_on_recently_edited_wrapping_line/cursor:pos')\nend\n\nfunction test_backspace_can_scroll_up()\n io.write('\\ntest_backspace_can_scroll_up')\n -- display the lines 2/3/4 with the cursor on line 2\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=2, pos=1}\n Editor_state.screen_top1 = {line=2, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'def', 'F - test_backspace_can_scroll_up/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi', 'F - test_backspace_can_scroll_up/baseline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'jkl', 'F - test_backspace_can_scroll_up/baseline/screen:3')\n -- after hitting backspace the screen scrolls up by one line\n edit.run_after_keychord(Editor_state, 'backspace')\n check_eq(Editor_state.screen_top1.line, 1, 'F - test_backspace_can_scroll_up/screen_top')\n check_eq(Editor_state.cursor1.line, 1, 'F - test_backspace_can_scroll_up/cursor')\n y = Editor_state.top\n App.screen.check(y, 'abcdef', 'F - test_backspace_can_scroll_up/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'ghi', 'F - test_backspace_can_scroll_up/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'jkl', 'F - test_backspace_can_scroll_up/screen:3')\nend\n\nfunction test_backspace_can_scroll_up_screen_line()\n io.write('\\ntest_backspace_can_scroll_up_screen_line')\n -- display lines starting from second screen line of a line\n App.screen.init{width=Editor_state.left+30, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=3, pos=5}\n Editor_state.screen_top1 = {line=3, pos=5}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n local y = Editor_state.top\n App.screen.check(y, 'jkl', 'F - test_backspace_can_scroll_up_screen_line/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'mno', 'F - test_backspace_can_scroll_up_screen_line/baseline/screen:2')\n -- after hitting backspace the screen scrolls up by one screen line\n edit.run_after_keychord(Editor_state, 'backspace')\n y = Editor_state.top\n App.screen.check(y, 'ghij', 'F - test_backspace_can_scroll_up_screen_line/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'kl', 'F - test_backspace_can_scroll_up_screen_line/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'mno', 'F - test_backspace_can_scroll_up_screen_line/screen:3')\n check_eq(Editor_state.screen_top1.line, 3, 'F - test_backspace_can_scroll_up_screen_line/screen_top')\n check_eq(Editor_state.screen_top1.pos, 1, 'F - test_backspace_can_scroll_up_screen_line/screen_top')\n check_eq(Editor_state.cursor1.line, 3, 'F - test_backspace_can_scroll_up_screen_line/cursor:line')\n check_eq(Editor_state.cursor1.pos, 4, 'F - test_backspace_can_scroll_up_screen_line/cursor:pos')\nend\n\nfunction test_backspace_past_line_boundary()\n io.write('\\ntest_backspace_past_line_boundary')\n -- position cursor at start of a (non-first) line\n App.screen.init{width=Editor_state.left+30, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=2, pos=1}\n -- backspace joins with previous line\n edit.run_after_keychord(Editor_state, 'backspace')\n check_eq(Editor_state.lines[1].data, 'abcdef', \"F - test_backspace_past_line_boundary\")\nend\n\nfunction test_undo_insert_text()\n io.write('\\ntest_undo_insert_text')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'xyz'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=2, pos=4}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n -- insert a character\n edit.draw(Editor_state)\n edit.run_after_textinput(Editor_state, 'g')\n check_eq(Editor_state.cursor1.line, 2, 'F - test_undo_insert_text/baseline/cursor:line')\n check_eq(Editor_state.cursor1.pos, 5, 'F - test_undo_insert_text/baseline/cursor:pos')\n local y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_undo_insert_text/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'defg', 'F - test_undo_insert_text/baseline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'xyz', 'F - test_undo_insert_text/baseline/screen:3')\n -- undo\n edit.run_after_keychord(Editor_state, 'C-z')\n check_eq(Editor_state.cursor1.line, 2, 'F - test_undo_insert_text/cursor:line')\n check_eq(Editor_state.cursor1.pos, 4, 'F - test_undo_insert_text/cursor:pos')\n y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_undo_insert_text/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_undo_insert_text/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'xyz', 'F - test_undo_insert_text/screen:3')\nend\n\nfunction test_undo_delete_text()\n io.write('\\ntest_undo_delete_text')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'defg', 'xyz'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=2, pos=5}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n -- delete a character\n edit.run_after_keychord(Editor_state, 'backspace')\n check_eq(Editor_state.cursor1.line, 2, 'F - test_undo_delete_text/baseline/cursor:line')\n check_eq(Editor_state.cursor1.pos, 4, 'F - test_undo_delete_text/baseline/cursor:pos')\n local y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_undo_delete_text/baseline/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'def', 'F - test_undo_delete_text/baseline/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'xyz', 'F - test_undo_delete_text/baseline/screen:3')\n -- undo\n--? -- after undo, the backspaced key is selected\n edit.run_after_keychord(Editor_state, 'C-z')\n check_eq(Editor_state.cursor1.line, 2, 'F - test_undo_delete_text/cursor:line')\n check_eq(Editor_state.cursor1.pos, 5, 'F - test_undo_delete_text/cursor:pos')\n y = Editor_state.top\n App.screen.check(y, 'abc', 'F - test_undo_delete_text/screen:1')\n y = y + Editor_state.line_height\n App.screen.check(y, 'defg', 'F - test_undo_delete_text/screen:2')\n y = y + Editor_state.line_height\n App.screen.check(y, 'xyz', 'F - test_undo_delete_text/screen:3')\nend\n\nfunction test_search()\n io.write('\\ntest_search')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc', 'def', 'ghi', 'deg'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n -- search for a string\n edit.run_after_keychord(Editor_state, 'C-f')\n edit.run_after_textinput(Editor_state, 'd')\n edit.run_after_keychord(Editor_state, 'return')\n check_eq(Editor_state.cursor1.line, 2, 'F - test_search/1/cursor:line')\n check_eq(Editor_state.cursor1.pos, 1, 'F - test_search/1/cursor:pos')\n -- reset cursor\n Editor_state.cursor1 = {line=1, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n -- search for second occurrence\n edit.run_after_keychord(Editor_state, 'C-f')\n edit.run_after_textinput(Editor_state, 'de')\n edit.run_after_keychord(Editor_state, 'down')\n edit.run_after_keychord(Editor_state, 'return')\n check_eq(Editor_state.cursor1.line, 4, 'F - test_search/2/cursor:line')\n check_eq(Editor_state.cursor1.pos, 1, 'F - test_search/2/cursor:pos')\nend\n\nfunction test_search_upwards()\n io.write('\\ntest_search_upwards')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc abd'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=2}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n -- search for a string\n edit.run_after_keychord(Editor_state, 'C-f')\n edit.run_after_textinput(Editor_state, 'a')\n -- search for previous occurrence\n edit.run_after_keychord(Editor_state, 'up')\n check_eq(Editor_state.cursor1.line, 1, 'F - test_search_upwards/2/cursor:line')\n check_eq(Editor_state.cursor1.pos, 1, 'F - test_search_upwards/2/cursor:pos')\nend\n\nfunction test_search_wrap()\n io.write('\\ntest_search_wrap')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=3}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n -- search for a string\n edit.run_after_keychord(Editor_state, 'C-f')\n edit.run_after_textinput(Editor_state, 'a')\n edit.run_after_keychord(Editor_state, 'return')\n -- cursor wraps\n check_eq(Editor_state.cursor1.line, 1, 'F - test_search_wrap/1/cursor:line')\n check_eq(Editor_state.cursor1.pos, 1, 'F - test_search_wrap/1/cursor:pos')\nend\n\nfunction test_search_wrap_upwards()\n io.write('\\ntest_search_wrap_upwards')\n App.screen.init{width=120, height=60}\n Editor_state = edit.initialize_test_state()\n Editor_state.lines = load_array{'abc abd'}\n Text.redraw_all(Editor_state)\n Editor_state.cursor1 = {line=1, pos=1}\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.screen_bottom1 = {}\n edit.draw(Editor_state)\n -- search upwards for a string\n edit.run_after_keychord(Editor_state, 'C-f')\n edit.run_after_textinput(Editor_state, 'a')\n edit.run_after_keychord(Editor_state, 'up')\n -- cursor wraps\n check_eq(Editor_state.cursor1.line, 1, 'F - test_search_wrap_upwards/1/cursor:line')\n check_eq(Editor_state.cursor1.pos, 5, 'F - test_search_wrap_upwards/1/cursor:pos')\nend\n"}]}},{"FileDel":{"deleted_names":[{"basename":"source_text.lua","metadata":0}],"del":{"EdgeMap":{"edges":[{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":5,"pos":2},"to":{"change":4,"start":147062,"end":147101},"introduced_by":4},{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":4,"pos":147101},"to":{"change":4,"start":83723,"end":83723},"introduced_by":4}],"inode":{"change":4,"pos":83723}}},"content_edges":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":4,"pos":83723},"to":{"change":4,"start":83724,"end":147061},"introduced_by":4}],"inode":{"change":4,"pos":83723}},"content":[{"Del":"-- text editor, particularly text drawing, horizontal wrap, vertical scrolling\nText = {}\nAB_padding = 20 -- space in pixels between A side and B side\n\n-- draw a line starting from startpos to screen at y between State.left and State.right\n-- return the final y, and pos,posB of start of final screen line drawn\nfunction Text.draw(State, line_index, y, startpos, startposB)\n local line = State.lines[line_index]\n local line_cache = State.line_cache[line_index]\n line_cache.starty = y\n line_cache.startpos = startpos\n line_cache.startposB = startposB\n -- draw A side\n local overflows_screen, x, pos, screen_line_starting_pos\n if startpos then\n overflows_screen, x, y, pos, screen_line_starting_pos = Text.draw_wrapping_line(State, line_index, State.left, y, startpos)\n if overflows_screen then\n return y, screen_line_starting_pos\n end\n if Focus == 'edit' and State.cursor1.pos then\n if State.search_term == nil then\n if line_index == State.cursor1.line and State.cursor1.pos == pos then\n Text.draw_cursor(State, x, y)\n end\n end\n end\n else\n x = State.left\n end\n -- check for B side\n--? if line_index == 8 then print('checking for B side') end\n if line.dataB == nil then\n assert(y)\n assert(screen_line_starting_pos)\n--? if line_index == 8 then print('return 1') end\n return y, screen_line_starting_pos\n end\n if not State.expanded and not line.expanded then\n assert(y)\n assert(screen_line_starting_pos)\n--? if line_index == 8 then print('return 2') end\n button(State, 'expand', {x=x+AB_padding, y=y+2, w=App.width(State.em), h=State.line_height-4, color={1,1,1},\n icon = function(button_params)\n App.color(Fold_background_color)\n love.graphics.rectangle('fill', button_params.x, button_params.y, App.width(State.em), State.line_height-4, 2,2)\n end,\n onpress1 = function()\n line.expanded = true\n end,\n })\n return y, screen_line_starting_pos\n end\n -- draw B side\n--? if line_index == 8 then print('drawing B side') end\n App.color(Fold_color)\n--? if Foo then\n--? print('draw:', State.lines[line_index].data, \"=====\", State.lines[line_index].dataB, 'starting from x', x+AB_padding)\n--? end\n if startposB then\n overflows_screen, x, y, pos, screen_line_starting_pos = Text.draw_wrapping_lineB(State, line_index, x,y, startposB)\n else\n overflows_screen, x, y, pos, screen_line_starting_pos = Text.draw_wrapping_lineB(State, line_index, x+AB_padding,y, 1)\n end\n if overflows_screen then\n return y, nil, screen_line_starting_pos\n end\n--? if line_index == 8 then print('a') end\n if Focus == 'edit' and State.cursor1.posB then\n--? if line_index == 8 then print('b') end\n if State.search_term == nil then\n--? if line_index == 8 then print('c', State.cursor1.line, State.cursor1.posB, line_index, pos) end\n if line_index == State.cursor1.line and State.cursor1.posB == pos then\n Text.draw_cursor(State, x, y)\n end\n end\n end\n return y, nil, screen_line_starting_pos\nend\n\n-- Given an array of fragments, draw the subset starting from pos to screen\n-- starting from (x,y).\n-- Return:\n-- - whether we got to bottom of screen before end of line\n-- - the final (x,y)\n-- - the final pos\n-- - starting pos of the final screen line drawn\nfunction Text.draw_wrapping_line(State, line_index, x,y, startpos)\n local line = State.lines[line_index]\n local line_cache = State.line_cache[line_index]\n--? print('== line', line_index, '^'..line.data..'$')\n local screen_line_starting_pos = startpos\n Text.compute_fragments(State, line_index)\n local pos = 1\n initialize_color()\n for _, f in ipairs(line_cache.fragments) do\n App.color(Text_color)\n local frag, frag_text = f.data, f.text\n select_color(frag)\n local frag_len = utf8.len(frag)\n--? print('text.draw:', frag, 'at', line_index,pos, 'after', x,y)\n if pos < startpos then\n -- render nothing\n--? print('skipping', frag)\n else\n -- render fragment\n local frag_width = App.width(frag_text)\n if x + frag_width > State.right then\n assert(x > State.left) -- no overfull lines\n y = y + State.line_height\n if y + State.line_height > App.screen.height then\n return --[[screen filled]] true, x,y, pos, screen_line_starting_pos\n end\n screen_line_starting_pos = pos\n x = State.left\n end\n App.screen.draw(frag_text, x,y)\n -- render cursor if necessary\n if State.cursor1.pos and line_index == State.cursor1.line then\n if pos <= State.cursor1.pos and pos + frag_len > State.cursor1.pos then\n if State.search_term then\n if State.lines[State.cursor1.line].data:sub(State.cursor1.pos, State.cursor1.pos+utf8.len(State.search_term)-1) == State.search_term then\n local lo_px = Text.draw_highlight(State, line, x,y, pos, State.cursor1.pos, State.cursor1.pos+utf8.len(State.search_term))\n App.color(Text_color)\n love.graphics.print(State.search_term, x+lo_px,y)\n end\n elseif Focus == 'edit' then\n Text.draw_cursor(State, x+Text.x(frag, State.cursor1.pos-pos+1), y)\n App.color(Text_color)\n end\n end\n end\n x = x + frag_width\n end\n pos = pos + frag_len\n end\n return false, x,y, pos, screen_line_starting_pos\nend\n\nfunction Text.draw_wrapping_lineB(State, line_index, x,y, startpos)\n local line = State.lines[line_index]\n local line_cache = State.line_cache[line_index]\n local screen_line_starting_pos = startpos\n Text.compute_fragmentsB(State, line_index, x)\n local pos = 1\n for _, f in ipairs(line_cache.fragmentsB) do\n local frag, frag_text = f.data, f.text\n local frag_len = utf8.len(frag)\n--? print('text.draw:', frag, 'at', line_index,pos, 'after', x,y)\n if pos < startpos then\n -- render nothing\n--? print('skipping', frag)\n else\n -- render fragment\n local frag_width = App.width(frag_text)\n if x + frag_width > State.right then\n assert(x > State.left) -- no overfull lines\n y = y + State.line_height\n if y + State.line_height > App.screen.height then\n return --[[screen filled]] true, x,y, pos, screen_line_starting_pos\n end\n screen_line_starting_pos = pos\n x = State.left\n end\n App.screen.draw(frag_text, x,y)\n -- render cursor if necessary\n if State.cursor1.posB and line_index == State.cursor1.line then\n if pos <= State.cursor1.posB and pos + frag_len > State.cursor1.posB then\n if State.search_term then\n if State.lines[State.cursor1.line].dataB:sub(State.cursor1.posB, State.cursor1.posB+utf8.len(State.search_term)-1) == State.search_term then\n local lo_px = Text.draw_highlight(State, line, x,y, pos, State.cursor1.posB, State.cursor1.posB+utf8.len(State.search_term))\n App.color(Fold_color)\n love.graphics.print(State.search_term, x+lo_px,y)\n end\n elseif Focus == 'edit' then\n Text.draw_cursor(State, x+Text.x(frag, State.cursor1.posB-pos+1), y)\n App.color(Fold_color)\n end\n end\n end\n x = x + frag_width\n end\n pos = pos + frag_len\n end\n return false, x,y, pos, screen_line_starting_pos\nend\n\nfunction Text.draw_cursor(State, x, y)\n -- blink every 0.5s\n if math.floor(Cursor_time*2)%2 == 0 then\n App.color(Cursor_color)\n love.graphics.rectangle('fill', x,y, 3,State.line_height)\n end\n State.cursor_x = x\n State.cursor_y = y+State.line_height\nend\n\nfunction Text.populate_screen_line_starting_pos(State, line_index)\n local line = State.lines[line_index]\n local line_cache = State.line_cache[line_index]\n if line_cache.screen_line_starting_pos then\n return\n end\n -- duplicate some logic from Text.draw\n Text.compute_fragments(State, line_index)\n line_cache.screen_line_starting_pos = {1}\n local x = State.left\n local pos = 1\n for _, f in ipairs(line_cache.fragments) do\n local frag, frag_text = f.data, f.text\n -- render fragment\n local frag_width = App.width(frag_text)\n if x + frag_width > State.right then\n x = State.left\n table.insert(line_cache.screen_line_starting_pos, pos)\n end\n x = x + frag_width\n local frag_len = utf8.len(frag)\n pos = pos + frag_len\n end\nend\n\nfunction Text.compute_fragments(State, line_index)\n--? print('compute_fragments', line_index, 'between', State.left, State.right)\n local line = State.lines[line_index]\n local line_cache = State.line_cache[line_index]\n if line_cache.fragments then\n return\n end\n line_cache.fragments = {}\n local x = State.left\n -- try to wrap at word boundaries\n for frag in line.data:gmatch('%S*%s*') do\n local frag_text = App.newText(love.graphics.getFont(), frag)\n local frag_width = App.width(frag_text)\n--? print('x: '..tostring(x)..'; frag_width: '..tostring(frag_width)..'; '..tostring(State.right-x)..'px to go')\n while x + frag_width > State.right do\n--? print(('checking whether to split fragment ^%s$ of width %d when rendering from %d'):format(frag, frag_width, x))\n if (x-State.left) < 0.8 * (State.right-State.left) then\n--? print('splitting')\n -- long word; chop it at some letter\n -- We're not going to reimplement TeX here.\n local bpos = Text.nearest_pos_less_than(frag, State.right - x)\n--? print('bpos', bpos)\n if bpos == 0 then break end -- avoid infinite loop when window is too narrow\n local boffset = Text.offset(frag, bpos+1) -- byte _after_ bpos\n--? print('space for '..tostring(bpos)..' graphemes, '..tostring(boffset-1)..' bytes')\n local frag1 = string.sub(frag, 1, boffset-1)\n local frag1_text = App.newText(love.graphics.getFont(), frag1)\n local frag1_width = App.width(frag1_text)\n--? print('extracting ^'..frag1..'$ of width '..tostring(frag1_width)..'px')\n assert(x + frag1_width <= State.right)\n table.insert(line_cache.fragments, {data=frag1, text=frag1_text})\n frag = string.sub(frag, boffset)\n frag_text = App.newText(love.graphics.getFont(), frag)\n frag_width = App.width(frag_text)\n end\n x = State.left -- new line\n end\n if #frag > 0 then\n--? print('inserting ^'..frag..'$ of width '..tostring(frag_width)..'px')\n table.insert(line_cache.fragments, {data=frag, text=frag_text})\n end\n x = x + frag_width\n end\nend\n\nfunction Text.populate_screen_line_starting_posB(State, line_index, x)\n local line = State.lines[line_index]\n local line_cache = State.line_cache[line_index]\n if line_cache.screen_line_starting_posB then\n return\n end\n -- duplicate some logic from Text.draw\n Text.compute_fragmentsB(State, line_index, x)\n line_cache.screen_line_starting_posB = {1}\n local pos = 1\n for _, f in ipairs(line_cache.fragmentsB) do\n local frag, frag_text = f.data, f.text\n -- render fragment\n local frag_width = App.width(frag_text)\n if x + frag_width > State.right then\n x = State.left\n table.insert(line_cache.screen_line_starting_posB, pos)\n end\n x = x + frag_width\n local frag_len = utf8.len(frag)\n pos = pos + frag_len\n end\nend\n\nfunction Text.compute_fragmentsB(State, line_index, x)\n--? print('compute_fragmentsB', line_index, 'between', x, State.right)\n local line = State.lines[line_index]\n local line_cache = State.line_cache[line_index]\n if line_cache.fragmentsB then\n return\n end\n line_cache.fragmentsB = {}\n -- try to wrap at word boundaries\n for frag in line.dataB:gmatch('%S*%s*') do\n local frag_text = App.newText(love.graphics.getFont(), frag)\n local frag_width = App.width(frag_text)\n--? print('x: '..tostring(x)..'; '..tostring(State.right-x)..'px to go')\n while x + frag_width > State.right do\n--? print(('checking whether to split fragment ^%s$ of width %d when rendering from %d'):format(frag, frag_width, x))\n if (x-State.left) < 0.8 * (State.right-State.left) then\n--? print('splitting')\n -- long word; chop it at some letter\n -- We're not going to reimplement TeX here.\n local bpos = Text.nearest_pos_less_than(frag, State.right - x)\n--? print('bpos', bpos)\n if bpos == 0 then break end -- avoid infinite loop when window is too narrow\n local boffset = Text.offset(frag, bpos+1) -- byte _after_ bpos\n--? print('space for '..tostring(bpos)..' graphemes, '..tostring(boffset-1)..' bytes')\n local frag1 = string.sub(frag, 1, boffset-1)\n local frag1_text = App.newText(love.graphics.getFont(), frag1)\n local frag1_width = App.width(frag1_text)\n--? print('extracting ^'..frag1..'$ of width '..tostring(frag1_width)..'px')\n assert(x + frag1_width <= State.right)\n table.insert(line_cache.fragmentsB, {data=frag1, text=frag1_text})\n frag = string.sub(frag, boffset)\n frag_text = App.newText(love.graphics.getFont(), frag)\n frag_width = App.width(frag_text)\n end\n x = State.left -- new line\n end\n if #frag > 0 then\n--? print('inserting ^'..frag..'$ of width '..tostring(frag_width)..'px')\n table.insert(line_cache.fragmentsB, {data=frag, text=frag_text})\n end\n x = x + frag_width\n end\nend\n\nfunction Text.textinput(State, t)\n if App.mouse_down(1) then return end\n if App.ctrl_down() or App.alt_down() or App.cmd_down() then return end\n local before = snapshot(State, State.cursor1.line)\n--? print(State.screen_top1.line, State.screen_top1.pos, State.cursor1.line, State.cursor1.pos, State.screen_bottom1.line, State.screen_bottom1.pos)\n Text.insert_at_cursor(State, t)\n if State.cursor_y > App.screen.height - State.line_height then\n Text.populate_screen_line_starting_pos(State, State.cursor1.line)\n Text.snap_cursor_to_bottom_of_screen(State, State.left, State.right)\n end\n record_undo_event(State, {before=before, after=snapshot(State, State.cursor1.line)})\nend\n\nfunction Text.insert_at_cursor(State, t)\n if State.cursor1.pos then\n local byte_offset = Text.offset(State.lines[State.cursor1.line].data, State.cursor1.pos)\n 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)\n Text.clear_screen_line_cache(State, State.cursor1.line)\n State.cursor1.pos = State.cursor1.pos+1\n else\n assert(State.cursor1.posB)\n local byte_offset = Text.offset(State.lines[State.cursor1.line].dataB, State.cursor1.posB)\n 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)\n Text.clear_screen_line_cache(State, State.cursor1.line)\n State.cursor1.posB = State.cursor1.posB+1\n end\nend\n\n-- Don't handle any keys here that would trigger love.textinput above.\nfunction Text.keychord_pressed(State, chord)\n--? print('chord', chord)\n --== shortcuts that mutate text\n if chord == 'return' then\n local before_line = State.cursor1.line\n local before = snapshot(State, before_line)\n Text.insert_return(State)\n if State.cursor_y > App.screen.height - State.line_height then\n Text.snap_cursor_to_bottom_of_screen(State, State.left, State.right)\n end\n schedule_save(State)\n record_undo_event(State, {before=before, after=snapshot(State, before_line, State.cursor1.line)})\n elseif chord == 'tab' then\n local before = snapshot(State, State.cursor1.line)\n--? print(State.screen_top1.line, State.screen_top1.pos, State.cursor1.line, State.cursor1.pos, State.screen_bottom1.line, State.screen_bottom1.pos)\n Text.insert_at_cursor(State, '\\t')\n if State.cursor_y > App.screen.height - State.line_height then\n Text.populate_screen_line_starting_pos(State, State.cursor1.line)\n Text.snap_cursor_to_bottom_of_screen(State, State.left, State.right)\n--? print('=>', State.screen_top1.line, State.screen_top1.pos, State.cursor1.line, State.cursor1.pos, State.screen_bottom1.line, State.screen_bottom1.pos)\n end\n schedule_save(State)\n record_undo_event(State, {before=before, after=snapshot(State, State.cursor1.line)})\n elseif chord == 'backspace' then\n local before\n if State.cursor1.pos and State.cursor1.pos > 1 then\n before = snapshot(State, State.cursor1.line)\n local byte_start = utf8.offset(State.lines[State.cursor1.line].data, State.cursor1.pos-1)\n local byte_end = utf8.offset(State.lines[State.cursor1.line].data, State.cursor1.pos)\n if byte_start then\n if byte_end then\n 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)\n else\n State.lines[State.cursor1.line].data = string.sub(State.lines[State.cursor1.line].data, 1, byte_start-1)\n end\n State.cursor1.pos = State.cursor1.pos-1\n end\n elseif State.cursor1.posB then\n if State.cursor1.posB > 1 then\n before = snapshot(State, State.cursor1.line)\n local byte_start = utf8.offset(State.lines[State.cursor1.line].dataB, State.cursor1.posB-1)\n local byte_end = utf8.offset(State.lines[State.cursor1.line].dataB, State.cursor1.posB)\n if byte_start then\n if byte_end then\n 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)\n else\n State.lines[State.cursor1.line].dataB = string.sub(State.lines[State.cursor1.line].dataB, 1, byte_start-1)\n end\n State.cursor1.posB = State.cursor1.posB-1\n end\n else\n -- refuse to delete past beginning of side B\n end\n elseif State.cursor1.line > 1 then\n before = snapshot(State, State.cursor1.line-1, State.cursor1.line)\n -- join lines\n State.cursor1.pos = utf8.len(State.lines[State.cursor1.line-1].data)+1\n State.lines[State.cursor1.line-1].data = State.lines[State.cursor1.line-1].data..State.lines[State.cursor1.line].data\n table.remove(State.lines, State.cursor1.line)\n table.remove(State.line_cache, State.cursor1.line)\n State.cursor1.line = State.cursor1.line-1\n end\n if State.screen_top1.line > #State.lines then\n Text.populate_screen_line_starting_pos(State, #State.lines)\n local line_cache = State.line_cache[#State.line_cache]\n State.screen_top1 = {line=#State.lines, pos=line_cache.screen_line_starting_pos[#line_cache.screen_line_starting_pos]}\n elseif Text.lt1(State.cursor1, State.screen_top1) then\n local top2 = Text.to2(State, State.screen_top1)\n top2 = Text.previous_screen_line(State, top2, State.left, State.right)\n State.screen_top1 = Text.to1(State, top2)\n Text.redraw_all(State) -- if we're scrolling, reclaim all fragments to avoid memory leaks\n end\n Text.clear_screen_line_cache(State, State.cursor1.line)\n assert(Text.le1(State.screen_top1, State.cursor1))\n schedule_save(State)\n record_undo_event(State, {before=before, after=snapshot(State, State.cursor1.line)})\n elseif chord == 'delete' then\n local before\n if State.cursor1.posB or State.cursor1.pos <= utf8.len(State.lines[State.cursor1.line].data) then\n before = snapshot(State, State.cursor1.line)\n else\n before = snapshot(State, State.cursor1.line, State.cursor1.line+1)\n end\n if State.cursor1.pos and State.cursor1.pos <= utf8.len(State.lines[State.cursor1.line].data) then\n local byte_start = utf8.offset(State.lines[State.cursor1.line].data, State.cursor1.pos)\n local byte_end = utf8.offset(State.lines[State.cursor1.line].data, State.cursor1.pos+1)\n if byte_start then\n if byte_end then\n 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)\n else\n State.lines[State.cursor1.line].data = string.sub(State.lines[State.cursor1.line].data, 1, byte_start-1)\n end\n -- no change to State.cursor1.pos\n end\n elseif State.cursor1.posB then\n if State.cursor1.posB <= utf8.len(State.lines[State.cursor1.line].dataB) then\n local byte_start = utf8.offset(State.lines[State.cursor1.line].dataB, State.cursor1.posB)\n local byte_end = utf8.offset(State.lines[State.cursor1.line].dataB, State.cursor1.posB+1)\n if byte_start then\n if byte_end then\n 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)\n else\n State.lines[State.cursor1.line].dataB = string.sub(State.lines[State.cursor1.line].dataB, 1, byte_start-1)\n end\n -- no change to State.cursor1.pos\n end\n else\n -- refuse to delete past end of side B\n end\n elseif State.cursor1.line < #State.lines then\n -- join lines\n State.lines[State.cursor1.line].data = State.lines[State.cursor1.line].data..State.lines[State.cursor1.line+1].data\n -- delete side B on first line\n State.lines[State.cursor1.line].dataB = State.lines[State.cursor1.line+1].dataB\n table.remove(State.lines, State.cursor1.line+1)\n table.remove(State.line_cache, State.cursor1.line+1)\n end\n Text.clear_screen_line_cache(State, State.cursor1.line)\n schedule_save(State)\n record_undo_event(State, {before=before, after=snapshot(State, State.cursor1.line)})\n --== shortcuts that move the cursor\n elseif chord == 'left' then\n Text.left(State)\n elseif chord == 'right' then\n Text.right(State)\n elseif chord == 'S-left' then\n Text.left(State)\n elseif chord == 'S-right' then\n Text.right(State)\n -- C- hotkeys reserved for drawings, so we'll use M-\n elseif chord == 'M-left' then\n Text.word_left(State)\n elseif chord == 'M-right' then\n Text.word_right(State)\n elseif chord == 'M-S-left' then\n Text.word_left(State)\n elseif chord == 'M-S-right' then\n Text.word_right(State)\n elseif chord == 'home' then\n Text.start_of_line(State)\n elseif chord == 'end' then\n Text.end_of_line(State)\n elseif chord == 'S-home' then\n Text.start_of_line(State)\n elseif chord == 'S-end' then\n Text.end_of_line(State)\n elseif chord == 'up' then\n Text.up(State)\n elseif chord == 'down' then\n Text.down(State)\n elseif chord == 'S-up' then\n Text.up(State)\n elseif chord == 'S-down' then\n Text.down(State)\n elseif chord == 'pageup' then\n Text.pageup(State)\n elseif chord == 'pagedown' then\n Text.pagedown(State)\n elseif chord == 'S-pageup' then\n Text.pageup(State)\n elseif chord == 'S-pagedown' then\n Text.pagedown(State)\n end\nend\n\nfunction Text.insert_return(State)\n if State.cursor1.pos then\n -- when inserting a newline, move any B side to the new line\n local byte_offset = Text.offset(State.lines[State.cursor1.line].data, State.cursor1.pos)\n 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})\n table.insert(State.line_cache, State.cursor1.line+1, {})\n State.lines[State.cursor1.line].data = string.sub(State.lines[State.cursor1.line].data, 1, byte_offset-1)\n State.lines[State.cursor1.line].dataB = nil\n Text.clear_screen_line_cache(State, State.cursor1.line)\n State.cursor1 = {line=State.cursor1.line+1, pos=1}\n else\n -- disable enter when cursor is on the B side\n end\nend\n\nfunction Text.pageup(State)\n--? print('pageup')\n -- duplicate some logic from love.draw\n local top2 = Text.to2(State, State.screen_top1)\n--? print(App.screen.height)\n local y = App.screen.height - State.line_height\n while y >= State.top do\n--? print(y, top2.line, top2.screen_line, top2.screen_pos)\n if State.screen_top1.line == 1 and State.screen_top1.pos and State.screen_top1.pos == 1 then break end\n y = y - State.line_height\n top2 = Text.previous_screen_line(State, top2)\n end\n State.screen_top1 = Text.to1(State, top2)\n State.cursor1 = {line=State.screen_top1.line, pos=State.screen_top1.pos, posB=State.screen_top1.posB}\n Text.move_cursor_down_to_next_text_line_while_scrolling_again_if_necessary(State)\n--? print(State.cursor1.line, State.cursor1.pos, State.screen_top1.line, State.screen_top1.pos)\n--? print('pageup end')\nend\n\nfunction Text.pagedown(State)\n--? print('pagedown')\n local bot2 = Text.to2(State, State.screen_bottom1)\n local new_top1 = Text.to1(State, bot2)\n if Text.lt1(State.screen_top1, new_top1) then\n State.screen_top1 = new_top1\n else\n State.screen_top1 = {line=State.screen_bottom1.line, pos=State.screen_bottom1.pos}\n end\n--? print('setting top to', State.screen_top1.line, State.screen_top1.pos)\n State.cursor1 = {line=State.screen_top1.line, pos=State.screen_top1.pos, posB=State.screen_top1.posB}\n Text.move_cursor_down_to_next_text_line_while_scrolling_again_if_necessary(State)\n--? print('top now', State.screen_top1.line)\n Text.redraw_all(State) -- if we're scrolling, reclaim all fragments to avoid memory leaks\n--? print('pagedown end')\nend\n\nfunction Text.up(State)\n if State.cursor1.pos then\n Text.upA(State)\n else\n Text.upB(State)\n end\nend\n\nfunction Text.upA(State)\n--? print('up', State.cursor1.line, State.cursor1.pos, State.screen_top1.line, State.screen_top1.pos)\n local screen_line_starting_pos, screen_line_index = Text.pos_at_start_of_screen_line(State, State.cursor1)\n if screen_line_starting_pos == 1 then\n--? print('cursor is at first screen line of its line')\n -- line is done; skip to previous text line\n if State.cursor1.line > 1 then\n--? print('found previous text line')\n State.cursor1 = {line=State.cursor1.line-1, pos=nil}\n Text.populate_screen_line_starting_pos(State, State.cursor1.line)\n -- previous text line found, pick its final screen line\n--? print('has multiple screen lines')\n local screen_line_starting_pos = State.line_cache[State.cursor1.line].screen_line_starting_pos\n--? print(#screen_line_starting_pos)\n screen_line_starting_pos = screen_line_starting_pos[#screen_line_starting_pos]\n local screen_line_starting_byte_offset = Text.offset(State.lines[State.cursor1.line].data, screen_line_starting_pos)\n local s = string.sub(State.lines[State.cursor1.line].data, screen_line_starting_byte_offset)\n State.cursor1.pos = screen_line_starting_pos + Text.nearest_cursor_pos(s, State.cursor_x, State.left) - 1\n end\n else\n -- move up one screen line in current line\n assert(screen_line_index > 1)\n local new_screen_line_starting_pos = State.line_cache[State.cursor1.line].screen_line_starting_pos[screen_line_index-1]\n local new_screen_line_starting_byte_offset = Text.offset(State.lines[State.cursor1.line].data, new_screen_line_starting_pos)\n local s = string.sub(State.lines[State.cursor1.line].data, new_screen_line_starting_byte_offset)\n State.cursor1.pos = new_screen_line_starting_pos + Text.nearest_cursor_pos(s, State.cursor_x, State.left) - 1\n--? print('cursor pos is now '..tostring(State.cursor1.pos))\n end\n if Text.lt1(State.cursor1, State.screen_top1) then\n local top2 = Text.to2(State, State.screen_top1)\n top2 = Text.previous_screen_line(State, top2)\n State.screen_top1 = Text.to1(State, top2)\n end\nend\n\nfunction Text.upB(State)\n local line_cache = State.line_cache[State.cursor1.line]\n local screen_line_starting_posB, screen_line_indexB = Text.pos_at_start_of_screen_lineB(State, State.cursor1)\n assert(screen_line_indexB >= 1)\n if screen_line_indexB == 1 then\n -- move to A side of previous line\n if State.cursor1.line > 1 then\n State.cursor1.line = State.cursor1.line-1\n State.cursor1.posB = nil\n Text.populate_screen_line_starting_pos(State, State.cursor1.line)\n local prev_line_cache = State.line_cache[State.cursor1.line]\n local prev_screen_line_starting_pos = prev_line_cache.screen_line_starting_pos[#prev_line_cache.screen_line_starting_pos]\n local prev_screen_line_starting_byte_offset = Text.offset(State.lines[State.cursor1.line].data, prev_screen_line_starting_pos)\n local s = string.sub(State.lines[State.cursor1.line].data, prev_screen_line_starting_byte_offset)\n State.cursor1.pos = prev_screen_line_starting_pos + Text.nearest_cursor_pos(s, State.cursor_x, State.left) - 1\n end\n elseif screen_line_indexB == 2 then\n -- all-B screen-line to potentially A+B screen-line\n local xA = Margin_left + Text.screen_line_width(State, State.cursor1.line, #line_cache.screen_line_starting_pos) + AB_padding\n if State.cursor_x < xA then\n State.cursor1.posB = nil\n Text.populate_screen_line_starting_pos(State, State.cursor1.line)\n local new_screen_line_starting_pos = line_cache.screen_line_starting_pos[#line_cache.screen_line_starting_pos]\n local new_screen_line_starting_byte_offset = Text.offset(State.lines[State.cursor1.line].data, new_screen_line_starting_pos)\n local s = string.sub(State.lines[State.cursor1.line].data, new_screen_line_starting_byte_offset)\n State.cursor1.pos = new_screen_line_starting_pos + Text.nearest_cursor_pos(s, State.cursor_x, State.left) - 1\n else\n Text.populate_screen_line_starting_posB(State, State.cursor1.line)\n local new_screen_line_starting_posB = line_cache.screen_line_starting_posB[screen_line_indexB-1]\n local new_screen_line_starting_byte_offsetB = Text.offset(State.lines[State.cursor1.line].dataB, new_screen_line_starting_posB)\n local s = string.sub(State.lines[State.cursor1.line].dataB, new_screen_line_starting_byte_offsetB)\n State.cursor1.posB = new_screen_line_starting_posB + Text.nearest_cursor_pos(s, State.cursor_x-xA, State.left) - 1\n end\n else\n assert(screen_line_indexB > 2)\n -- all-B screen-line to all-B screen-line\n Text.populate_screen_line_starting_posB(State, State.cursor1.line)\n local new_screen_line_starting_posB = line_cache.screen_line_starting_posB[screen_line_indexB-1]\n local new_screen_line_starting_byte_offsetB = Text.offset(State.lines[State.cursor1.line].dataB, new_screen_line_starting_posB)\n local s = string.sub(State.lines[State.cursor1.line].dataB, new_screen_line_starting_byte_offsetB)\n State.cursor1.posB = new_screen_line_starting_posB + Text.nearest_cursor_pos(s, State.cursor_x, State.left) - 1\n end\n if Text.lt1(State.cursor1, State.screen_top1) then\n local top2 = Text.to2(State, State.screen_top1)\n top2 = Text.previous_screen_line(State, top2)\n State.screen_top1 = Text.to1(State, top2)\n end\nend\n\n-- cursor on final screen line (A or B side) => goes to next screen line on A side\n-- cursor on A side => move down one screen line (A side) in current line\n-- cursor on B side => move down one screen line (B side) in current line\nfunction Text.down(State)\n--? print('down', State.cursor1.line, State.cursor1.pos, State.screen_top1.line, State.screen_top1.pos, State.screen_bottom1.line, State.screen_bottom1.pos)\n if Text.cursor_at_final_screen_line(State) then\n -- line is done, skip to next text line\n--? print('cursor at final screen line of its line')\n if State.cursor1.line < #State.lines then\n State.cursor1 = {\n line = State.cursor1.line+1,\n pos = Text.nearest_cursor_pos(State.lines[State.cursor1.line+1].data, State.cursor_x, State.left)\n }\n--? print(State.cursor1.pos)\n end\n if State.cursor1.line > State.screen_bottom1.line then\n--? print('screen top before:', State.screen_top1.line, State.screen_top1.pos)\n--? print('scroll up preserving cursor')\n Text.snap_cursor_to_bottom_of_screen(State)\n--? print('screen top after:', State.screen_top1.line, State.screen_top1.pos)\n end\n elseif State.cursor1.pos then\n -- move down one screen line (A side) in current line\n local scroll_down = Text.le1(State.screen_bottom1, State.cursor1)\n--? print('cursor is NOT at final screen line of its line')\n local screen_line_starting_pos, screen_line_index = Text.pos_at_start_of_screen_line(State, State.cursor1)\n Text.populate_screen_line_starting_pos(State, State.cursor1.line)\n local new_screen_line_starting_pos = State.line_cache[State.cursor1.line].screen_line_starting_pos[screen_line_index+1]\n--? print('switching pos of screen line at cursor from '..tostring(screen_line_starting_pos)..' to '..tostring(new_screen_line_starting_pos))\n local new_screen_line_starting_byte_offset = Text.offset(State.lines[State.cursor1.line].data, new_screen_line_starting_pos)\n local s = string.sub(State.lines[State.cursor1.line].data, new_screen_line_starting_byte_offset)\n State.cursor1.pos = new_screen_line_starting_pos + Text.nearest_cursor_pos(s, State.cursor_x, State.left) - 1\n--? print('cursor pos is now', State.cursor1.line, State.cursor1.pos)\n if scroll_down then\n--? print('scroll up preserving cursor')\n Text.snap_cursor_to_bottom_of_screen(State)\n--? print('screen top after:', State.screen_top1.line, State.screen_top1.pos)\n end\n else\n -- move down one screen line (B side) in current line\n local scroll_down = false\n if Text.le1(State.screen_bottom1, State.cursor1) then\n scroll_down = true\n end\n local cursor_line = State.lines[State.cursor1.line]\n local cursor_line_cache = State.line_cache[State.cursor1.line]\n local cursor2 = Text.to2(State, State.cursor1)\n assert(cursor2.screen_lineB < #cursor_line_cache.screen_line_starting_posB)\n local screen_line_starting_posB, screen_line_indexB = Text.pos_at_start_of_screen_lineB(State, State.cursor1)\n Text.populate_screen_line_starting_posB(State, State.cursor1.line)\n local new_screen_line_starting_posB = cursor_line_cache.screen_line_starting_posB[screen_line_indexB+1]\n local new_screen_line_starting_byte_offsetB = Text.offset(cursor_line.dataB, new_screen_line_starting_posB)\n local s = string.sub(cursor_line.dataB, new_screen_line_starting_byte_offsetB)\n State.cursor1.posB = new_screen_line_starting_posB + Text.nearest_cursor_pos(s, State.cursor_x, State.left) - 1\n if scroll_down then\n Text.snap_cursor_to_bottom_of_screen(State)\n end\n end\n--? print('=>', State.cursor1.line, State.cursor1.pos, State.screen_top1.line, State.screen_top1.pos, State.screen_bottom1.line, State.screen_bottom1.pos)\nend\n\nfunction Text.start_of_line(State)\n if State.cursor1.pos then\n State.cursor1.pos = 1\n else\n State.cursor1.posB = 1\n end\n if Text.lt1(State.cursor1, State.screen_top1) then\n State.screen_top1 = {line=State.cursor1.line, pos=1} -- copy\n end\nend\n\nfunction Text.end_of_line(State)\n if State.cursor1.pos then\n State.cursor1.pos = utf8.len(State.lines[State.cursor1.line].data) + 1\n else\n State.cursor1.posB = utf8.len(State.lines[State.cursor1.line].dataB) + 1\n end\n if Text.cursor_out_of_screen(State) then\n Text.snap_cursor_to_bottom_of_screen(State)\n end\nend\n\nfunction Text.word_left(State)\n -- we can cross the fold, so check side A/B one level down\n Text.skip_whitespace_left(State)\n Text.left(State)\n Text.skip_non_whitespace_left(State)\nend\n\nfunction Text.word_right(State)\n -- we can cross the fold, so check side A/B one level down\n Text.skip_whitespace_right(State)\n Text.right(State)\n Text.skip_non_whitespace_right(State)\n if Text.cursor_out_of_screen(State) then\n Text.snap_cursor_to_bottom_of_screen(State)\n end\nend\n\nfunction Text.skip_whitespace_left(State)\n if State.cursor1.pos then\n Text.skip_whitespace_leftA(State)\n else\n Text.skip_whitespace_leftB(State)\n end\nend\n\nfunction Text.skip_non_whitespace_left(State)\n if State.cursor1.pos then\n Text.skip_non_whitespace_leftA(State)\n else\n Text.skip_non_whitespace_leftB(State)\n end\nend\n\nfunction Text.skip_whitespace_leftA(State)\n while true do\n if State.cursor1.pos == 1 then\n break\n end\n if Text.match(State.lines[State.cursor1.line].data, State.cursor1.pos-1, '%S') then\n break\n end\n Text.left(State)\n end\nend\n\nfunction Text.skip_whitespace_leftB(State)\n while true do\n if State.cursor1.posB == 1 then\n break\n end\n if Text.match(State.lines[State.cursor1.line].dataB, State.cursor1.posB-1, '%S') then\n break\n end\n Text.left(State)\n end\nend\n\nfunction Text.skip_non_whitespace_leftA(State)\n while true do\n if State.cursor1.pos == 1 then\n break\n end\n assert(State.cursor1.pos > 1)\n if Text.match(State.lines[State.cursor1.line].data, State.cursor1.pos-1, '%s') then\n break\n end\n Text.left(State)\n end\nend\n\nfunction Text.skip_non_whitespace_leftB(State)\n while true do\n if State.cursor1.posB == 1 then\n break\n end\n assert(State.cursor1.posB > 1)\n if Text.match(State.lines[State.cursor1.line].dataB, State.cursor1.posB-1, '%s') then\n break\n end\n Text.left(State)\n end\nend\n\nfunction Text.skip_whitespace_right(State)\n if State.cursor1.pos then\n Text.skip_whitespace_rightA(State)\n else\n Text.skip_whitespace_rightB(State)\n end\nend\n\nfunction Text.skip_non_whitespace_right(State)\n if State.cursor1.pos then\n Text.skip_non_whitespace_rightA(State)\n else\n Text.skip_non_whitespace_rightB(State)\n end\nend\n\nfunction Text.skip_whitespace_rightA(State)\n while true do\n if State.cursor1.pos > utf8.len(State.lines[State.cursor1.line].data) then\n break\n end\n if Text.match(State.lines[State.cursor1.line].data, State.cursor1.pos, '%S') then\n break\n end\n Text.right_without_scroll(State)\n end\nend\n\nfunction Text.skip_whitespace_rightB(State)\n while true do\n if State.cursor1.posB > utf8.len(State.lines[State.cursor1.line].dataB) then\n break\n end\n if Text.match(State.lines[State.cursor1.line].dataB, State.cursor1.posB, '%S') then\n break\n end\n Text.right_without_scroll(State)\n end\nend\n\nfunction Text.skip_non_whitespace_rightA(State)\n while true do\n if State.cursor1.pos > utf8.len(State.lines[State.cursor1.line].data) then\n break\n end\n if Text.match(State.lines[State.cursor1.line].data, State.cursor1.pos, '%s') then\n break\n end\n Text.right_without_scroll(State)\n end\nend\n\nfunction Text.skip_non_whitespace_rightB(State)\n while true do\n if State.cursor1.posB > utf8.len(State.lines[State.cursor1.line].dataB) then\n break\n end\n if Text.match(State.lines[State.cursor1.line].dataB, State.cursor1.posB, '%s') then\n break\n end\n Text.right_without_scroll(State)\n end\nend\n\nfunction Text.match(s, pos, pat)\n local start_offset = Text.offset(s, pos)\n assert(start_offset)\n local end_offset = Text.offset(s, pos+1)\n assert(end_offset > start_offset)\n local curr = s:sub(start_offset, end_offset-1)\n return curr:match(pat)\nend\n\nfunction Text.left(State)\n if State.cursor1.pos then\n Text.leftA(State)\n else\n Text.leftB(State)\n end\nend\n\nfunction Text.leftA(State)\n if State.cursor1.pos > 1 then\n State.cursor1.pos = State.cursor1.pos-1\n elseif State.cursor1.line > 1 then\n State.cursor1 = {\n line = State.cursor1.line-1,\n pos = utf8.len(State.lines[State.cursor1.line-1].data) + 1,\n }\n end\n if Text.lt1(State.cursor1, State.screen_top1) then\n local top2 = Text.to2(State, State.screen_top1)\n top2 = Text.previous_screen_line(State, top2)\n State.screen_top1 = Text.to1(State, top2)\n end\nend\n\nfunction Text.leftB(State)\n if State.cursor1.posB > 1 then\n State.cursor1.posB = State.cursor1.posB-1\n else\n -- overflow back into A side\n State.cursor1.posB = nil\n State.cursor1.pos = utf8.len(State.lines[State.cursor1.line].data) + 1\n end\n if Text.lt1(State.cursor1, State.screen_top1) then\n local top2 = Text.to2(State, State.screen_top1)\n top2 = Text.previous_screen_line(State, top2)\n State.screen_top1 = Text.to1(State, top2)\n end\nend\n\nfunction Text.right(State)\n Text.right_without_scroll(State)\n if Text.cursor_out_of_screen(State) then\n Text.snap_cursor_to_bottom_of_screen(State)\n end\nend\n\nfunction Text.right_without_scroll(State)\n if State.cursor1.pos then\n Text.right_without_scrollA(State)\n else\n Text.right_without_scrollB(State)\n end\nend\n\nfunction Text.right_without_scrollA(State)\n if State.cursor1.pos <= utf8.len(State.lines[State.cursor1.line].data) then\n State.cursor1.pos = State.cursor1.pos+1\n elseif State.cursor1.line <= #State.lines-1 then\n State.cursor1 = {line=State.cursor1.line+1, pos=1}\n end\nend\n\nfunction Text.right_without_scrollB(State)\n if State.cursor1.posB <= utf8.len(State.lines[State.cursor1.line].dataB) then\n State.cursor1.posB = State.cursor1.posB+1\n elseif State.cursor1.line <= #State.lines-1 then\n -- overflow back into A side\n State.cursor1 = {line=State.cursor1.line+1, pos=1}\n end\nend\n\nfunction Text.pos_at_start_of_screen_line(State, loc1)\n Text.populate_screen_line_starting_pos(State, loc1.line)\n local line_cache = State.line_cache[loc1.line]\n for i=#line_cache.screen_line_starting_pos,1,-1 do\n local spos = line_cache.screen_line_starting_pos[i]\n if spos <= loc1.pos then\n return spos,i\n end\n end\n assert(false)\nend\n\nfunction Text.pos_at_start_of_screen_lineB(State, loc1)\n Text.populate_screen_line_starting_pos(State, loc1.line)\n local line_cache = State.line_cache[loc1.line]\n local x = Margin_left + Text.screen_line_width(State, loc1.line, #line_cache.screen_line_starting_pos) + AB_padding\n Text.populate_screen_line_starting_posB(State, loc1.line, x)\n for i=#line_cache.screen_line_starting_posB,1,-1 do\n local sposB = line_cache.screen_line_starting_posB[i]\n if sposB <= loc1.posB then\n return sposB,i\n end\n end\n assert(false)\nend\n\nfunction Text.cursor_at_final_screen_line(State)\n Text.populate_screen_line_starting_pos(State, State.cursor1.line)\n local line = State.lines[State.cursor1.line]\n local screen_lines = State.line_cache[State.cursor1.line].screen_line_starting_pos\n--? print(screen_lines[#screen_lines], State.cursor1.pos)\n if (not State.expanded and not line.expanded) or\n line.dataB == nil then\n return screen_lines[#screen_lines] <= State.cursor1.pos\n end\n if State.cursor1.pos then\n -- ignore B side\n return screen_lines[#screen_lines] <= State.cursor1.pos\n end\n assert(State.cursor1.posB)\n local line_cache = State.line_cache[State.cursor1.line]\n local x = Margin_left + Text.screen_line_width(State, State.cursor1.line, #line_cache.screen_line_starting_pos) + AB_padding\n Text.populate_screen_line_starting_posB(State, State.cursor1.line, x)\n local screen_lines = State.line_cache[State.cursor1.line].screen_line_starting_posB\n return screen_lines[#screen_lines] <= State.cursor1.posB\nend\n\nfunction Text.move_cursor_down_to_next_text_line_while_scrolling_again_if_necessary(State)\n if State.top > App.screen.height - State.line_height then\n--? print('scroll up')\n Text.snap_cursor_to_bottom_of_screen(State)\n end\nend\n\n-- should never modify State.cursor1\nfunction Text.snap_cursor_to_bottom_of_screen(State)\n--? print('to2:', State.cursor1.line, State.cursor1.pos, State.cursor1.posB)\n local top2 = Text.to2(State, State.cursor1)\n--? print('to2: =>', top2.line, top2.screen_line, top2.screen_pos, top2.screen_lineB, top2.screen_posB)\n -- slide to start of screen line\n if top2.screen_pos then\n top2.screen_pos = 1\n else\n assert(top2.screen_posB)\n top2.screen_posB = 1\n end\n--? 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)\n--? print('cursor pos '..tostring(State.cursor1.pos)..' is on the #'..tostring(top2.screen_line)..' screen line down')\n local y = App.screen.height - State.line_height\n -- duplicate some logic from love.draw\n while true do\n--? print(y, 'top2:', State.lines[top2.line].data, top2.line, top2.screen_line, top2.screen_pos, top2.screen_lineB, top2.screen_posB)\n if top2.line == 1 and top2.screen_line == 1 then break end\n local h = State.line_height\n if y - h < State.top then\n break\n end\n y = y - h\n top2 = Text.previous_screen_line(State, top2)\n end\n--? print('top2 finally:', top2.line, top2.screen_line, top2.screen_pos)\n State.screen_top1 = Text.to1(State, top2)\n--? print('top1 finally:', State.screen_top1.line, State.screen_top1.pos)\n--? 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)\n Text.redraw_all(State) -- if we're scrolling, reclaim all fragments to avoid memory leaks\n Foo = true\nend\n\nfunction Text.in_line(State, line_index, x,y)\n local line = State.lines[line_index]\n local line_cache = State.line_cache[line_index]\n if line_cache.starty == nil then return false end -- outside current page\n if y < line_cache.starty then return false end\n local num_screen_lines = 0\n if line_cache.startpos then\n Text.populate_screen_line_starting_pos(State, line_index)\n 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\n end\n--? print('#screenlines after A', num_screen_lines)\n if line.dataB and (State.expanded or line.expanded) then\n local x = Margin_left + Text.screen_line_width(State, line_index, #line_cache.screen_line_starting_pos) + AB_padding\n Text.populate_screen_line_starting_posB(State, line_index, x)\n--? print('B:', x, #line_cache.screen_line_starting_posB)\n if line_cache.startposB then\n 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\n else\n 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\n end\n end\n--? print('#screenlines after B', num_screen_lines)\n return y < line_cache.starty + State.line_height*num_screen_lines\nend\n\n-- convert mx,my in pixels to schema-1 coordinates\n-- returns: pos, posB\n-- scenarios:\n-- line without B side\n-- line with B side collapsed\n-- line with B side expanded\n-- line starting rendering in A side (startpos ~= nil)\n-- line starting rendering in B side (startposB ~= nil)\n-- my on final screen line of A side\n-- mx to right of A side with no B side\n-- mx to right of A side but left of B side\n-- mx to right of B side\n-- preconditions:\n-- startpos xor startposB\n-- expanded -> dataB\nfunction Text.to_pos_on_line(State, line_index, mx, my)\n local line = State.lines[line_index]\n local line_cache = State.line_cache[line_index]\n assert(my >= line_cache.starty)\n -- duplicate some logic from Text.draw\n local y = line_cache.starty\n--? print('click', line_index, my, 'with line starting at', y, #line_cache.screen_line_starting_pos) -- , #line_cache.screen_line_starting_posB)\n if line_cache.startpos then\n local start_screen_line_index = Text.screen_line_index(line_cache.screen_line_starting_pos, line_cache.startpos)\n for screen_line_index = start_screen_line_index,#line_cache.screen_line_starting_pos do\n local screen_line_starting_pos = line_cache.screen_line_starting_pos[screen_line_index]\n local screen_line_starting_byte_offset = Text.offset(line.data, screen_line_starting_pos)\n--? print('iter', y, screen_line_index, screen_line_starting_pos, string.sub(line.data, screen_line_starting_byte_offset))\n local nexty = y + State.line_height\n if my < nexty then\n -- On all wrapped screen lines but the final one, clicks past end of\n -- line position cursor on final character of screen line.\n -- (The final screen line positions past end of screen line as always.)\n 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\n--? print('past end of non-final line; return')\n return line_cache.screen_line_starting_pos[screen_line_index+1]-1\n end\n local s = string.sub(line.data, screen_line_starting_byte_offset)\n--? print('return', mx, Text.nearest_cursor_pos(s, mx, State.left), '=>', screen_line_starting_pos + Text.nearest_cursor_pos(s, mx, State.left) - 1)\n local screen_line_posA = Text.nearest_cursor_pos(s, mx, State.left)\n if line.dataB == nil then\n -- no B side\n return screen_line_starting_pos + screen_line_posA - 1\n end\n if not State.expanded and not line.expanded then\n -- B side is not expanded\n return screen_line_starting_pos + screen_line_posA - 1\n end\n local lenA = utf8.len(s)\n if screen_line_posA < lenA then\n -- mx is within A side\n return screen_line_starting_pos + screen_line_posA - 1\n end\n local max_xA = State.left+Text.x(s, lenA+1)\n if mx < max_xA + AB_padding then\n -- mx is in the space between A and B side\n return screen_line_starting_pos + screen_line_posA - 1\n end\n mx = mx - max_xA - AB_padding\n local screen_line_posB = Text.nearest_cursor_pos(line.dataB, mx, --[[no left margin]] 0)\n return nil, screen_line_posB\n end\n y = nexty\n end\n end\n -- look in screen lines composed entirely of the B side\n assert(State.expanded or line.expanded)\n local start_screen_line_indexB\n if line_cache.startposB then\n start_screen_line_indexB = Text.screen_line_indexB(line_cache.screen_line_starting_posB, line_cache.startposB)\n else\n start_screen_line_indexB = 2 -- skip the first line of side B, which we checked above\n end\n for screen_line_indexB = start_screen_line_indexB,#line_cache.screen_line_starting_posB do\n local screen_line_starting_posB = line_cache.screen_line_starting_posB[screen_line_indexB]\n local screen_line_starting_byte_offsetB = Text.offset(line.dataB, screen_line_starting_posB)\n--? print('iter2', y, screen_line_indexB, screen_line_starting_posB, string.sub(line.dataB, screen_line_starting_byte_offsetB))\n local nexty = y + State.line_height\n if my < nexty then\n -- On all wrapped screen lines but the final one, clicks past end of\n -- line position cursor on final character of screen line.\n -- (The final screen line positions past end of screen line as always.)\n--? print('aa', mx, State.left, Text.screen_line_widthB(State, line_index, screen_line_indexB))\n 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\n--? print('past end of non-final line; return')\n return nil, line_cache.screen_line_starting_posB[screen_line_indexB+1]-1\n end\n local s = string.sub(line.dataB, screen_line_starting_byte_offsetB)\n--? print('return', mx, Text.nearest_cursor_pos(s, mx, State.left), '=>', screen_line_starting_posB + Text.nearest_cursor_pos(s, mx, State.left) - 1)\n return nil, screen_line_starting_posB + Text.nearest_cursor_pos(s, mx, State.left) - 1\n end\n y = nexty\n end\n assert(false)\nend\n\nfunction Text.screen_line_width(State, line_index, i)\n local line = State.lines[line_index]\n local line_cache = State.line_cache[line_index]\n local start_pos = line_cache.screen_line_starting_pos[i]\n local start_offset = Text.offset(line.data, start_pos)\n local screen_line\n if i < #line_cache.screen_line_starting_pos then\n local past_end_pos = line_cache.screen_line_starting_pos[i+1]\n local past_end_offset = Text.offset(line.data, past_end_pos)\n screen_line = string.sub(line.data, start_offset, past_end_offset-1)\n else\n screen_line = string.sub(line.data, start_pos)\n end\n local screen_line_text = App.newText(love.graphics.getFont(), screen_line)\n return App.width(screen_line_text)\nend\n\nfunction Text.screen_line_widthB(State, line_index, i)\n local line = State.lines[line_index]\n local line_cache = State.line_cache[line_index]\n local start_posB = line_cache.screen_line_starting_posB[i]\n local start_offsetB = Text.offset(line.dataB, start_posB)\n local screen_line\n if i < #line_cache.screen_line_starting_posB then\n--? print('non-final', i)\n local past_end_posB = line_cache.screen_line_starting_posB[i+1]\n local past_end_offsetB = Text.offset(line.dataB, past_end_posB)\n--? print('between', start_offsetB, past_end_offsetB)\n screen_line = string.sub(line.dataB, start_offsetB, past_end_offsetB-1)\n else\n--? print('final', i)\n--? print('after', start_offsetB)\n screen_line = string.sub(line.dataB, start_offsetB)\n end\n local screen_line_text = App.newText(love.graphics.getFont(), screen_line)\n--? local result = App.width(screen_line_text)\n--? print('=>', result)\n--? return result\n return App.width(screen_line_text)\nend\n\nfunction Text.screen_line_index(screen_line_starting_pos, pos)\n for i = #screen_line_starting_pos,1,-1 do\n if screen_line_starting_pos[i] <= pos then\n return i\n end\n end\nend\n\nfunction Text.screen_line_indexB(screen_line_starting_posB, posB)\n if posB == nil then\n return 0\n end\n assert(screen_line_starting_posB)\n for i = #screen_line_starting_posB,1,-1 do\n if screen_line_starting_posB[i] <= posB then\n return i\n end\n end\nend\n\n-- convert x pixel coordinate to pos\n-- oblivious to wrapping\n-- result: 1 to len+1\nfunction Text.nearest_cursor_pos(line, x, left)\n if x < left then\n return 1\n end\n local len = utf8.len(line)\n local max_x = left+Text.x(line, len+1)\n if x > max_x then\n return len+1\n end\n local leftpos, rightpos = 1, len+1\n--? print('-- nearest', x)\n while true do\n--? print('nearest', x, '^'..line..'$', leftpos, rightpos)\n if leftpos == rightpos then\n return leftpos\n end\n local curr = math.floor((leftpos+rightpos)/2)\n local currxmin = left+Text.x(line, curr)\n local currxmax = left+Text.x(line, curr+1)\n--? print('nearest', x, leftpos, rightpos, curr, currxmin, currxmax)\n if currxmin <= x and x < currxmax then\n if x-currxmin < currxmax-x then\n return curr\n else\n return curr+1\n end\n end\n if leftpos >= rightpos-1 then\n return rightpos\n end\n if currxmin > x then\n rightpos = curr\n else\n leftpos = curr\n end\n end\n assert(false)\nend\n\n-- return the nearest index of line (in utf8 code points) which lies entirely\n-- within x pixels of the left margin\n-- result: 0 to len+1\nfunction Text.nearest_pos_less_than(line, x)\n--? print('', '-- nearest_pos_less_than', line, x)\n local len = utf8.len(line)\n local max_x = Text.x_after(line, len)\n if x > max_x then\n return len+1\n end\n local left, right = 0, len+1\n while true do\n local curr = math.floor((left+right)/2)\n local currxmin = Text.x_after(line, curr+1)\n local currxmax = Text.x_after(line, curr+2)\n--? print('', x, left, right, curr, currxmin, currxmax)\n if currxmin <= x and x < currxmax then\n return curr\n end\n if left >= right-1 then\n return left\n end\n if currxmin > x then\n right = curr\n else\n left = curr\n end\n end\n assert(false)\nend\n\nfunction Text.x_after(s, pos)\n local offset = Text.offset(s, math.min(pos+1, #s+1))\n local s_before = s:sub(1, offset-1)\n--? print('^'..s_before..'$')\n local text_before = App.newText(love.graphics.getFont(), s_before)\n return App.width(text_before)\nend\n\nfunction Text.x(s, pos)\n local offset = Text.offset(s, pos)\n local s_before = s:sub(1, offset-1)\n local text_before = App.newText(love.graphics.getFont(), s_before)\n return App.width(text_before)\nend\n\nfunction Text.to2(State, loc1)\n if loc1.pos then\n return Text.to2A(State, loc1)\n else\n return Text.to2B(State, loc1)\n end\nend\n\nfunction Text.to2A(State, loc1)\n local result = {line=loc1.line}\n local line_cache = State.line_cache[loc1.line]\n Text.populate_screen_line_starting_pos(State, loc1.line)\n for i=#line_cache.screen_line_starting_pos,1,-1 do\n local spos = line_cache.screen_line_starting_pos[i]\n if spos <= loc1.pos then\n result.screen_line = i\n result.screen_pos = loc1.pos - spos + 1\n break\n end\n end\n assert(result.screen_pos)\n return result\nend\n\nfunction Text.to2B(State, loc1)\n local result = {line=loc1.line}\n local line_cache = State.line_cache[loc1.line]\n Text.populate_screen_line_starting_pos(State, loc1.line)\n local x = Margin_left + Text.screen_line_width(State, loc1.line, #line_cache.screen_line_starting_pos) + AB_padding\n Text.populate_screen_line_starting_posB(State, loc1.line, x)\n for i=#line_cache.screen_line_starting_posB,1,-1 do\n local sposB = line_cache.screen_line_starting_posB[i]\n if sposB <= loc1.posB then\n result.screen_lineB = i\n result.screen_posB = loc1.posB - sposB + 1\n break\n end\n end\n assert(result.screen_posB)\n return result\nend\n\nfunction Text.to1(State, loc2)\n if loc2.screen_pos then\n return Text.to1A(State, loc2)\n else\n return Text.to1B(State, loc2)\n end\nend\n\nfunction Text.to1A(State, loc2)\n local result = {line=loc2.line, pos=loc2.screen_pos}\n if loc2.screen_line > 1 then\n result.pos = State.line_cache[loc2.line].screen_line_starting_pos[loc2.screen_line] + loc2.screen_pos - 1\n end\n return result\nend\n\nfunction Text.to1B(State, loc2)\n local result = {line=loc2.line, posB=loc2.screen_posB}\n if loc2.screen_lineB > 1 then\n result.posB = State.line_cache[loc2.line].screen_line_starting_posB[loc2.screen_lineB] + loc2.screen_posB - 1\n end\n return result\nend\n\nfunction Text.lt1(a, b)\n if a.line < b.line then\n return true\n end\n if a.line > b.line then\n return false\n end\n -- A side < B side\n if a.pos and not b.pos then\n return true\n end\n if not a.pos and b.pos then\n return false\n end\n if a.pos then\n return a.pos < b.pos\n else\n return a.posB < b.posB\n end\nend\n\nfunction Text.le1(a, b)\n return eq(a, b) or Text.lt1(a, b)\nend\n\nfunction Text.offset(s, pos1)\n if pos1 == 1 then return 1 end\n local result = utf8.offset(s, pos1)\n if result == nil then\n print(pos1, #s, s)\n end\n assert(result)\n return result\nend\n\nfunction Text.previous_screen_line(State, loc2)\n if loc2.screen_pos then\n return Text.previous_screen_lineA(State, loc2)\n else\n return Text.previous_screen_lineB(State, loc2)\n end\nend\n\nfunction Text.previous_screen_lineA(State, loc2)\n if loc2.screen_line > 1 then\n--? print('a')\n return {line=loc2.line, screen_line=loc2.screen_line-1, screen_pos=1}\n elseif loc2.line == 1 then\n--? print('b')\n return loc2\n else\n Text.populate_screen_line_starting_pos(State, loc2.line-1)\n if State.lines[loc2.line-1].dataB == nil or\n (not State.expanded and not State.lines[loc2.line-1].expanded) then\n--? print('c1', loc2.line-1, State.lines[loc2.line-1].data, '==', State.lines[loc2.line-1].dataB, State.line_cache[loc2.line-1].fragmentsB)\n return {line=loc2.line-1, screen_line=#State.line_cache[loc2.line-1].screen_line_starting_pos, screen_pos=1}\n end\n -- try to switch to B\n local prev_line_cache = State.line_cache[loc2.line-1]\n local x = Margin_left + Text.screen_line_width(State, loc2.line-1, #prev_line_cache.screen_line_starting_pos) + AB_padding\n Text.populate_screen_line_starting_posB(State, loc2.line-1, x)\n local screen_line_starting_posB = State.line_cache[loc2.line-1].screen_line_starting_posB\n--? 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)\n if #screen_line_starting_posB > 1 then\n--? print('c2')\n return {line=loc2.line-1, screen_lineB=#State.line_cache[loc2.line-1].screen_line_starting_posB, screen_posB=1}\n else\n--? print('c3')\n -- if there's only one screen line, assume it overlaps with A, so remain in A\n return {line=loc2.line-1, screen_line=#State.line_cache[loc2.line-1].screen_line_starting_pos, screen_pos=1}\n end\n end\nend\n\nfunction Text.previous_screen_lineB(State, loc2)\n if loc2.screen_lineB > 2 then -- first screen line of B side overlaps with A side\n return {line=loc2.line, screen_lineB=loc2.screen_lineB-1, screen_posB=1}\n else\n -- switch to A side\n -- TODO: handle case where fold lands precisely at end of a new screen-line\n return {line=loc2.line, screen_line=#State.line_cache[loc2.line].screen_line_starting_pos, screen_pos=1}\n end\nend\n\n-- resize helper\nfunction Text.tweak_screen_top_and_cursor(State)\n if State.screen_top1.pos == 1 then return end\n Text.populate_screen_line_starting_pos(State, State.screen_top1.line)\n local line = State.lines[State.screen_top1.line]\n local line_cache = State.line_cache[State.screen_top1.line]\n for i=2,#line_cache.screen_line_starting_pos do\n local pos = line_cache.screen_line_starting_pos[i]\n if pos == State.screen_top1.pos then\n break\n end\n if pos > State.screen_top1.pos then\n -- make sure screen top is at start of a screen line\n local prev = line_cache.screen_line_starting_pos[i-1]\n if State.screen_top1.pos - prev < pos - State.screen_top1.pos then\n State.screen_top1.pos = prev\n else\n State.screen_top1.pos = pos\n end\n break\n end\n end\n -- make sure cursor is on screen\n if Text.lt1(State.cursor1, State.screen_top1) then\n State.cursor1 = {line=State.screen_top1.line, pos=State.screen_top1.pos}\n elseif State.cursor1.line >= State.screen_bottom1.line then\n--? print('too low')\n if Text.cursor_out_of_screen(State) then\n--? print('tweak')\n local pos,posB = Text.to_pos_on_line(State, State.screen_bottom1.line, State.right-5, App.screen.height-5)\n State.cursor1 = {line=State.screen_bottom1.line, pos=pos, posB=posB}\n end\n end\nend\n\n-- slightly expensive since it redraws the screen\nfunction Text.cursor_out_of_screen(State)\n App.draw()\n return State.cursor_y == nil\n -- this approach is cheaper and almost works, except on the final screen\n -- where file ends above bottom of screen\n--? local botpos = Text.pos_at_start_of_screen_line(State, State.cursor1)\n--? local botline1 = {line=State.cursor1.line, pos=botpos}\n--? return Text.lt1(State.screen_bottom1, botline1)\nend\n\nfunction Text.redraw_all(State)\n--? print('clearing fragments')\n State.line_cache = {}\n for i=1,#State.lines do\n State.line_cache[i] = {}\n end\nend\n\nfunction Text.clear_screen_line_cache(State, line_index)\n State.line_cache[line_index].fragments = nil\n State.line_cache[line_index].fragmentsB = nil\n State.line_cache[line_index].screen_line_starting_pos = nil\n State.line_cache[line_index].screen_line_starting_posB = nil\nend\n\nfunction trim(s)\n return s:gsub('^%s+', ''):gsub('%s+$', '')\nend\n\nfunction ltrim(s)\n return s:gsub('^%s+', '')\nend\n\nfunction rtrim(s)\n return s:gsub('%s+$', '')\nend\n"}]}},{"FileDel":{"deleted_names":[{"basename":"source_tests.lua","metadata":0}],"del":{"EdgeMap":{"edges":[{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":5,"pos":2},"to":{"change":4,"start":150199,"end":150239},"introduced_by":4},{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":4,"pos":150239},"to":{"change":4,"start":147103,"end":147103},"introduced_by":4}],"inode":{"change":4,"pos":147103}}},"content_edges":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":4,"pos":147103},"to":{"change":4,"start":147104,"end":150198},"introduced_by":4}],"inode":{"change":4,"pos":147103}},"content":[{"Del":"function test_resize_window()\n io.write('\\ntest_resize_window')\n App.screen.init{width=300, height=300}\n Editor_state = edit.initialize_test_state()\n Editor_state.filename = 'foo'\n Log_browser_state = edit.initialize_test_state()\n check_eq(App.screen.width, 300, 'F - test_resize_window/baseline/width')\n check_eq(App.screen.height, 300, 'F - test_resize_window/baseline/height')\n check_eq(Editor_state.left, Test_margin_left, 'F - test_resize_window/baseline/left_margin')\n App.resize(200, 400)\n check_eq(App.screen.width, 200, 'F - test_resize_window/width')\n check_eq(App.screen.height, 400, 'F - test_resize_window/height')\n check_eq(Editor_state.left, Test_margin_left, 'F - test_resize_window/left_margin')\n -- ugly; right margin switches from 0 after resize\n check_eq(Editor_state.right, 200-Margin_right, 'F - test_resize_window/right_margin')\n check_eq(Editor_state.width, 200-Test_margin_left-Margin_right, 'F - test_resize_window/drawing_width')\n -- TODO: how to make assertions about when App.update got past the early exit?\nend\n\nfunction test_drop_file()\n io.write('\\ntest_drop_file')\n App.screen.init{width=Editor_state.left+300, height=300}\n Editor_state = edit.initialize_test_state()\n App.filesystem['foo'] = 'abc\\ndef\\nghi\\n'\n local fake_dropped_file = {\n opened = false,\n getFilename = function(self)\n return 'foo'\n end,\n open = function(self)\n self.opened = true\n end,\n lines = function(self)\n assert(self.opened)\n return App.filesystem['foo']:gmatch('[^\\n]+')\n end,\n close = function(self)\n self.opened = false\n end,\n }\n App.filedropped(fake_dropped_file)\n check_eq(#Editor_state.lines, 3, 'F - test_drop_file/#lines')\n check_eq(Editor_state.lines[1].data, 'abc', 'F - test_drop_file/lines:1')\n check_eq(Editor_state.lines[2].data, 'def', 'F - test_drop_file/lines:2')\n check_eq(Editor_state.lines[3].data, 'ghi', 'F - test_drop_file/lines:3')\n edit.draw(Editor_state)\nend\n\nfunction test_drop_file_saves_previous()\n io.write('\\ntest_drop_file_saves_previous')\n App.screen.init{width=Editor_state.left+300, height=300}\n -- initially editing a file called foo that hasn't been saved to filesystem yet\n Editor_state.lines = load_array{'abc', 'def'}\n Editor_state.filename = 'foo'\n schedule_save(Editor_state)\n -- now drag a new file bar from the filesystem\n App.filesystem['bar'] = 'abc\\ndef\\nghi\\n'\n local fake_dropped_file = {\n opened = false,\n getFilename = function(self)\n return 'bar'\n end,\n open = function(self)\n self.opened = true\n end,\n lines = function(self)\n assert(self.opened)\n return App.filesystem['bar']:gmatch('[^\\n]+')\n end,\n close = function(self)\n self.opened = false\n end,\n }\n App.filedropped(fake_dropped_file)\n -- filesystem now contains a file called foo\n check_eq(App.filesystem['foo'], 'abc\\ndef\\n', 'F - test_drop_file_saves_previous')\nend\n"}]}},{"FileDel":{"deleted_names":[{"basename":"source_file.lua","metadata":0}],"del":{"EdgeMap":{"edges":[{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":5,"pos":2},"to":{"change":4,"start":152399,"end":152438},"introduced_by":4},{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":4,"pos":152438},"to":{"change":4,"start":150241,"end":150241},"introduced_by":4}],"inode":{"change":4,"pos":150241}}},"content_edges":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":4,"pos":150241},"to":{"change":4,"start":150242,"end":152398},"introduced_by":4}],"inode":{"change":4,"pos":150241}},"content":[{"Del":"-- primitives for saving to file and loading from file\n\nFold = '\\x1e' -- ASCII RS (record separator)\n\nfunction file_exists(filename)\n local infile = App.open_for_reading(filename)\n if infile then\n infile:close()\n return true\n else\n return false\n end\nend\n\nfunction load_from_disk(State)\n local infile = App.open_for_reading(State.filename)\n State.lines = load_from_file(infile)\n if infile then infile:close() end\nend\n\nfunction load_from_file(infile)\n local result = {}\n if infile then\n local infile_next_line = infile:lines() -- works with both Lua files and LÖVE Files (https://www.love2d.org/wiki/File)\n while true do\n local line = infile_next_line()\n if line == nil then break end\n local line_info = {}\n if line:find(Fold) then\n _, _, line_info.data, line_info.dataB = line:find('([^'..Fold..']*)'..Fold..'([^'..Fold..']*)')\n else\n line_info.data = line\n end\n table.insert(result, line_info)\n end\n end\n if #result == 0 then\n table.insert(result, {data=''})\n end\n return result\nend\n\nfunction save_to_disk(State)\n local outfile = App.open_for_writing(State.filename)\n if outfile == nil then\n error('failed to write to \"'..State.filename..'\"')\n end\n for _,line in ipairs(State.lines) do\n outfile:write(line.data)\n if line.dataB and #line.dataB > 0 then\n outfile:write(Fold)\n outfile:write(line.dataB)\n end\n outfile:write('\\n')\n end\n outfile:close()\nend\n\nfunction file_exists(filename)\n local infile = App.open_for_reading(filename)\n if infile then\n infile:close()\n return true\n else\n return false\n end\nend\n\n-- for tests\nfunction load_array(a)\n local result = {}\n local next_line = ipairs(a)\n local i,line,drawing = 0, ''\n while true do\n i,line = next_line(a, i)\n if i == nil then break end\n local line_info = {}\n if line:find(Fold) then\n _, _, line_info.data, line_info.dataB = line:find('([^'..Fold..']*)'..Fold..'([^'..Fold..']*)')\n else\n line_info.data = line\n end\n table.insert(result, line_info)\n end\n if #result == 0 then\n table.insert(result, {data=''})\n end\n return result\nend\n"}]}},{"FileDel":{"deleted_names":[{"basename":"source_edit.lua","metadata":0}],"del":{"EdgeMap":{"edges":[{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":5,"pos":2},"to":{"change":4,"start":165725,"end":165764},"introduced_by":4},{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":4,"pos":165764},"to":{"change":4,"start":152440,"end":152440},"introduced_by":4}],"inode":{"change":4,"pos":152440}}},"content_edges":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":4,"pos":152440},"to":{"change":4,"start":152441,"end":165724},"introduced_by":4}],"inode":{"change":4,"pos":152440}},"content":[{"Del":"-- some constants people might like to tweak\nText_color = {r=0, g=0, b=0}\nCursor_color = {r=1, g=0, b=0}\nFocus_stroke_color = {r=1, g=0, b=0} -- what mouse is hovering over\nHighlight_color = {r=0.7, g=0.7, b=0.9} -- selected text\nFold_color = {r=0, g=0.6, b=0}\nFold_background_color = {r=0, g=0.7, b=0}\n\nMargin_top = 15\nMargin_left = 25\nMargin_right = 25\n\nedit = {}\n\n-- run in both tests and a real run\nfunction edit.initialize_state(top, left, right, font_height, line_height) -- currently always draws to bottom of screen\n local result = {\n -- a line of bifold text consists of an A side and an optional B side, each of which is a string\n -- expanded: whether to show B side\n lines = {{data='', dataB=nil, expanded=nil}}, -- array of lines\n\n -- Lines can be too long to fit on screen, in which case they _wrap_ into\n -- multiple _screen lines_.\n\n -- rendering wrapped text lines needs some additional short-lived data per line:\n -- startpos, the index of data the line starts rendering from, can only be >1 for topmost line on screen\n -- starty, the y coord in pixels the line starts rendering from\n -- fragments: snippets of rendered love.graphics.Text, guaranteed to not straddle screen lines\n -- screen_line_starting_pos: optional array of grapheme indices if it wraps over more than one screen line\n line_cache = {},\n\n -- Given wrapping, any potential location for the text cursor can be described in two ways:\n -- * schema 1: As a combination of line index and position within a line (in utf8 codepoint units)\n -- * schema 2: As a combination of line index, screen line index within the line, and a position within the screen line.\n -- Positions (and screen line indexes) can be in either the A or the B side.\n --\n -- Most of the time we'll only persist positions in schema 1, translating to\n -- schema 2 when that's convenient.\n --\n -- Make sure these coordinates are never aliased, so that changing one causes\n -- action at a distance.\n screen_top1 = {line=1, pos=1, posB=nil}, -- position of start of screen line at top of screen\n cursor1 = {line=1, pos=1, posB=nil}, -- position of cursor\n screen_bottom1 = {line=1, pos=1, posB=nil}, -- position of start of screen line at bottom of screen\n\n -- cursor coordinates in pixels\n cursor_x = 0,\n cursor_y = 0,\n\n font_height = font_height,\n line_height = line_height,\n em = App.newText(love.graphics.getFont(), 'm'), -- widest possible character width\n\n top = top,\n left = left,\n right = right,\n width = right-left,\n\n filename = love.filesystem.getUserDirectory()..'/lines.txt',\n next_save = nil,\n\n -- undo\n history = {},\n next_history = 1,\n\n -- search\n search_term = nil,\n search_text = nil,\n search_backup = nil, -- stuff to restore when cancelling search\n }\n return result\nend -- App.initialize_state\n\nfunction edit.draw(State)\n State.button_handlers = {}\n App.color(Text_color)\n assert(#State.lines == #State.line_cache)\n if not Text.le1(State.screen_top1, State.cursor1) then\n print(State.screen_top1.line, State.screen_top1.pos, State.screen_top1.posB, State.cursor1.line, State.cursor1.pos, State.cursor1.posB)\n assert(false)\n end\n State.cursor_x = nil\n State.cursor_y = nil\n local y = State.top\n--? print('== draw')\n for line_index = State.screen_top1.line,#State.lines do\n local line = State.lines[line_index]\n--? print('draw:', y, line_index, line)\n if y + State.line_height > App.screen.height then break end\n State.screen_bottom1 = {line=line_index, pos=nil, posB=nil}\n--? print('text.draw', y, line_index)\n local startpos, startposB = 1, nil\n if line_index == State.screen_top1.line then\n if State.screen_top1.pos then\n startpos = State.screen_top1.pos\n else\n startpos, startposB = nil, State.screen_top1.posB\n end\n end\n y, State.screen_bottom1.pos, State.screen_bottom1.posB = Text.draw(State, line_index, y, startpos, startposB)\n y = y + State.line_height\n--? print('=> y', y)\n end\n if State.search_term then\n Text.draw_search_bar(State)\n end\nend\n\nfunction edit.update(State, dt)\n if State.next_save and State.next_save < App.getTime() then\n save_to_disk(State)\n State.next_save = nil\n end\nend\n\nfunction schedule_save(State)\n if State.next_save == nil then\n State.next_save = App.getTime() + 3 -- short enough that you're likely to still remember what you did\n end\nend\n\nfunction edit.quit(State)\n -- make sure to save before quitting\n if State.next_save then\n save_to_disk(State)\n end\nend\n\nfunction edit.mouse_pressed(State, x,y, mouse_button)\n if State.search_term then return end\n--? print('press', State.selection1.line, State.selection1.pos)\n if mouse_press_consumed_by_any_button_handler(State, x,y, mouse_button) then\n -- press on a button and it returned 'true' to short-circuit\n return\n end\n\n for line_index,line in ipairs(State.lines) do\n if Text.in_line(State, line_index, x,y) then\n local pos,posB = Text.to_pos_on_line(State, line_index, x, y)\n--? print(x,y, 'setting cursor:', line_index, pos, posB)\n State.cursor1 = {line=line_index, pos=pos, posB=posB}\n break\n end\n end\nend\n\nfunction edit.mouse_released(State, x,y, mouse_button)\nend\n\nfunction edit.textinput(State, t)\n for _,line_cache in ipairs(State.line_cache) do line_cache.starty = nil end -- just in case we scroll\n if State.search_term then\n State.search_term = State.search_term..t\n State.search_text = nil\n Text.search_next(State)\n else\n Text.textinput(State, t)\n end\n schedule_save(State)\nend\n\nfunction edit.keychord_pressed(State, chord, key)\n if State.search_term then\n if chord == 'escape' then\n State.search_term = nil\n State.search_text = nil\n State.cursor1 = State.search_backup.cursor\n State.screen_top1 = State.search_backup.screen_top\n State.search_backup = nil\n Text.redraw_all(State) -- if we're scrolling, reclaim all fragments to avoid memory leaks\n elseif chord == 'return' then\n State.search_term = nil\n State.search_text = nil\n State.search_backup = nil\n elseif chord == 'backspace' then\n local len = utf8.len(State.search_term)\n local byte_offset = Text.offset(State.search_term, len)\n State.search_term = string.sub(State.search_term, 1, byte_offset-1)\n State.search_text = nil\n elseif chord == 'down' then\n if State.cursor1.pos then\n State.cursor1.pos = State.cursor1.pos+1\n else\n State.cursor1.posB = State.cursor1.posB+1\n end\n Text.search_next(State)\n elseif chord == 'up' then\n Text.search_previous(State)\n end\n return\n elseif chord == 'C-f' then\n State.search_term = ''\n State.search_backup = {\n cursor={line=State.cursor1.line, pos=State.cursor1.pos, posB=State.cursor1.posB},\n screen_top={line=State.screen_top1.line, pos=State.screen_top1.pos, posB=State.screen_top1.posB},\n }\n assert(State.search_text == nil)\n -- bifold text\n elseif chord == 'C-b' then\n State.expanded = not State.expanded\n Text.redraw_all(State)\n if not State.expanded then\n for _,line in ipairs(State.lines) do\n line.expanded = nil\n end\n edit.eradicate_locations_after_the_fold(State)\n end\n elseif chord == 'C-d' then\n if State.cursor1.posB == nil then\n local before = snapshot(State, State.cursor1.line)\n if State.lines[State.cursor1.line].dataB == nil then\n State.lines[State.cursor1.line].dataB = ''\n end\n State.lines[State.cursor1.line].expanded = true\n State.cursor1.pos = nil\n State.cursor1.posB = 1\n if Text.cursor_out_of_screen(State) then\n Text.snap_cursor_to_bottom_of_screen(State, State.left, State.right)\n end\n schedule_save(State)\n record_undo_event(State, {before=before, after=snapshot(State, State.cursor1.line)})\n end\n -- zoom\n elseif chord == 'C-=' then\n edit.update_font_settings(State, State.font_height+2)\n Text.redraw_all(State)\n elseif chord == 'C--' then\n edit.update_font_settings(State, State.font_height-2)\n Text.redraw_all(State)\n elseif chord == 'C-0' then\n edit.update_font_settings(State, 20)\n Text.redraw_all(State)\n -- undo\n elseif chord == 'C-z' then\n for _,line_cache in ipairs(State.line_cache) do line_cache.starty = nil end -- just in case we scroll\n local event = undo_event(State)\n if event then\n local src = event.before\n State.screen_top1 = deepcopy(src.screen_top)\n State.cursor1 = deepcopy(src.cursor)\n patch(State.lines, event.after, event.before)\n patch_placeholders(State.line_cache, event.after, event.before)\n -- if we're scrolling, reclaim all fragments to avoid memory leaks\n Text.redraw_all(State)\n schedule_save(State)\n end\n elseif chord == 'C-y' then\n for _,line_cache in ipairs(State.line_cache) do line_cache.starty = nil end -- just in case we scroll\n local event = redo_event(State)\n if event then\n local src = event.after\n State.screen_top1 = deepcopy(src.screen_top)\n State.cursor1 = deepcopy(src.cursor)\n patch(State.lines, event.before, event.after)\n -- if we're scrolling, reclaim all fragments to avoid memory leaks\n Text.redraw_all(State)\n schedule_save(State)\n end\n -- clipboard\n elseif chord == 'C-c' then\n local s = Text.selection(State)\n if s then\n App.setClipboardText(s)\n end\n elseif chord == 'C-x' then\n for _,line_cache in ipairs(State.line_cache) do line_cache.starty = nil end -- just in case we scroll\n local s = Text.cut_selection(State, State.left, State.right)\n if s then\n App.setClipboardText(s)\n end\n schedule_save(State)\n elseif chord == 'C-v' then\n for _,line_cache in ipairs(State.line_cache) do line_cache.starty = nil end -- just in case we scroll\n -- We don't have a good sense of when to scroll, so we'll be conservative\n -- and sometimes scroll when we didn't quite need to.\n local before_line = State.cursor1.line\n local before = snapshot(State, before_line)\n local clipboard_data = App.getClipboardText()\n for _,code in utf8.codes(clipboard_data) do\n local c = utf8.char(code)\n if c == '\\n' then\n Text.insert_return(State)\n else\n Text.insert_at_cursor(State, c)\n end\n end\n if Text.cursor_out_of_screen(State) then\n Text.snap_cursor_to_bottom_of_screen(State, State.left, State.right)\n end\n schedule_save(State)\n record_undo_event(State, {before=before, after=snapshot(State, before_line, State.cursor1.line)})\n -- dispatch to text\n else\n for _,line_cache in ipairs(State.line_cache) do line_cache.starty = nil end -- just in case we scroll\n Text.keychord_pressed(State, chord)\n end\nend\n\nfunction edit.eradicate_locations_after_the_fold(State)\n -- eradicate side B from any locations we track\n if State.cursor1.posB then\n State.cursor1.posB = nil\n State.cursor1.pos = utf8.len(State.lines[State.cursor1.line].data)\n State.cursor1.pos = Text.pos_at_start_of_screen_line(State, State.cursor1)\n end\n if State.screen_top1.posB then\n State.screen_top1.posB = nil\n State.screen_top1.pos = utf8.len(State.lines[State.screen_top1.line].data)\n State.screen_top1.pos = Text.pos_at_start_of_screen_line(State, State.screen_top1)\n end\nend\n\nfunction edit.key_released(State, key, scancode)\nend\n\nfunction edit.update_font_settings(State, font_height)\n State.font_height = font_height\n love.graphics.setFont(love.graphics.newFont(Editor_state.font_height))\n State.line_height = math.floor(font_height*1.3)\n State.em = App.newText(love.graphics.getFont(), 'm')\n Text_cache = {}\nend\n\n--== some methods for tests\n\nTest_margin_left = 25\n\nfunction edit.initialize_test_state()\n -- if you change these values, tests will start failing\n return edit.initialize_state(\n 15, -- top margin\n Test_margin_left,\n App.screen.width, -- right margin = 0\n 14, -- font height assuming default LÖVE font\n 15) -- line height\nend\n\n-- all textinput events are also keypresses\n-- TODO: handle chords of multiple keys\nfunction edit.run_after_textinput(State, t)\n edit.keychord_pressed(State, t)\n edit.textinput(State, t)\n edit.key_released(State, t)\n App.screen.contents = {}\n edit.draw(State)\nend\n\n-- not all keys are textinput\nfunction edit.run_after_keychord(State, chord)\n edit.keychord_pressed(State, chord)\n edit.key_released(State, chord)\n App.screen.contents = {}\n edit.draw(State)\nend\n\nfunction edit.run_after_mouse_click(State, x,y, mouse_button)\n App.fake_mouse_press(x,y, mouse_button)\n edit.mouse_pressed(State, x,y, mouse_button)\n App.fake_mouse_release(x,y, mouse_button)\n edit.mouse_released(State, x,y, mouse_button)\n App.screen.contents = {}\n edit.draw(State)\nend\n\nfunction edit.run_after_mouse_press(State, x,y, mouse_button)\n App.fake_mouse_press(x,y, mouse_button)\n edit.mouse_pressed(State, x,y, mouse_button)\n App.screen.contents = {}\n edit.draw(State)\nend\n\nfunction edit.run_after_mouse_release(State, x,y, mouse_button)\n App.fake_mouse_release(x,y, mouse_button)\n edit.mouse_released(State, x,y, mouse_button)\n App.screen.contents = {}\n edit.draw(State)\nend\n"}]}},{"FileDel":{"deleted_names":[{"basename":"source.lua","metadata":0}],"del":{"EdgeMap":{"edges":[{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":5,"pos":2},"to":{"change":4,"start":177652,"end":177686},"introduced_by":4},{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":4,"pos":177686},"to":{"change":4,"start":165766,"end":165766},"introduced_by":4}],"inode":{"change":4,"pos":165766}}},"content_edges":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":4,"pos":165766},"to":{"change":4,"start":165767,"end":177651},"introduced_by":4}],"inode":{"change":4,"pos":165766}},"content":[{"Del":"source = {}\n\nEditor_state = {}\n\n-- called both in tests and real run\nfunction source.initialize_globals()\n -- tests currently mostly clear their own state\n\n Show_log_browser_side = false\n Focus = 'edit'\n Show_file_navigator = false\n File_navigation = {\n candidates = {\n 'run',\n 'run_tests',\n 'log',\n 'edit',\n 'text',\n 'search',\n 'select',\n 'undo',\n 'text_tests',\n 'file',\n 'source',\n 'source_tests',\n 'commands',\n 'log_browser',\n 'source_edit',\n 'source_text',\n 'source_undo',\n 'colorize',\n 'source_text_tests',\n 'source_file',\n 'main',\n 'button',\n 'keychord',\n 'app',\n 'test',\n 'json',\n },\n index = 1,\n }\n\n Menu_status_bar_height = nil -- initialized below\n\n -- a few text objects we can avoid recomputing unless the font changes\n Text_cache = {}\n\n -- blinking cursor\n Cursor_time = 0\nend\n\n-- called only for real run\nfunction source.initialize()\n love.keyboard.setTextInput(true) -- bring up keyboard on touch screen\n love.keyboard.setKeyRepeat(true)\n\n love.graphics.setBackgroundColor(1,1,1)\n\n if Settings and Settings.source then\n source.load_settings()\n else\n source.initialize_default_settings()\n end\n\n source.initialize_edit_side{'run.lua'}\n source.initialize_log_browser_side()\n\n Menu_status_bar_height = 5 + Editor_state.line_height + 5\n Editor_state.top = Editor_state.top + Menu_status_bar_height\n Log_browser_state.top = Log_browser_state.top + Menu_status_bar_height\nend\n\n-- environment for a mutable file of bifolded text\n-- TODO: some initialization is also happening in load_settings/initialize_default_settings. Clean that up.\nfunction source.initialize_edit_side(arg)\n if #arg > 0 then\n Editor_state.filename = arg[1]\n load_from_disk(Editor_state)\n Text.redraw_all(Editor_state)\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.cursor1 = {line=1, pos=1}\n else\n load_from_disk(Editor_state)\n Text.redraw_all(Editor_state)\n end\n\n if #arg > 1 then\n print('ignoring commandline args after '..arg[1])\n end\n\n -- We currently start out with side B collapsed.\n -- Other options:\n -- * save all expanded state by line\n -- * expand all if any location is in side B\n if Editor_state.cursor1.line > #Editor_state.lines then\n Editor_state.cursor1 = {line=1, pos=1}\n end\n if Editor_state.screen_top1.line > #Editor_state.lines then\n Editor_state.screen_top1 = {line=1, pos=1}\n end\n edit.eradicate_locations_after_the_fold(Editor_state)\n\n if rawget(_G, 'jit') then\n jit.off()\n jit.flush()\n end\nend\n\nfunction source.load_settings()\n local settings = Settings.source\n love.graphics.setFont(love.graphics.newFont(settings.font_height))\n -- maximize window to determine maximum allowable dimensions\n love.window.setMode(0, 0) -- maximize\n Display_width, Display_height, App.screen.flags = love.window.getMode()\n -- set up desired window dimensions\n App.screen.flags.resizable = true\n App.screen.flags.minwidth = math.min(Display_width, 200)\n App.screen.flags.minheight = math.min(Display_height, 200)\n App.screen.width, App.screen.height = settings.width, settings.height\n--? print('setting window from settings:', App.screen.width, App.screen.height)\n love.window.setMode(App.screen.width, App.screen.height, App.screen.flags)\n--? print('loading source position', settings.x, settings.y, settings.displayindex)\n source.set_window_position_from_settings(settings)\n Show_log_browser_side = settings.show_log_browser_side\n local right = App.screen.width - Margin_right\n if Show_log_browser_side then\n right = App.screen.width/2 - Margin_right\n end\n Editor_state = edit.initialize_state(Margin_top, Margin_left, right, settings.font_height, math.floor(settings.font_height*1.3))\n Editor_state.filename = settings.filename\n Editor_state.screen_top1 = settings.screen_top\n Editor_state.cursor1 = settings.cursor\nend\n\nfunction source.set_window_position_from_settings(settings)\n -- setPosition doesn't quite seem to do what is asked of it on Linux.\n love.window.setPosition(settings.x, settings.y-37, settings.displayindex)\nend\n\nfunction source.initialize_default_settings()\n local font_height = 20\n love.graphics.setFont(love.graphics.newFont(font_height))\n local em = App.newText(love.graphics.getFont(), 'm')\n source.initialize_window_geometry(App.width(em))\n Editor_state = edit.initialize_state(Margin_top, Margin_left, App.screen.width-Margin_right)\n Editor_state.font_height = font_height\n Editor_state.line_height = math.floor(font_height*1.3)\n Editor_state.em = em\nend\n\nfunction source.initialize_window_geometry(em_width)\n -- maximize window\n love.window.setMode(0, 0) -- maximize\n Display_width, Display_height, App.screen.flags = love.window.getMode()\n -- shrink height slightly to account for window decoration\n App.screen.height = Display_height-100\n App.screen.width = 40*em_width\n App.screen.flags.resizable = true\n App.screen.flags.minwidth = math.min(App.screen.width, 200)\n App.screen.flags.minheight = math.min(App.screen.width, 200)\n love.window.setMode(App.screen.width, App.screen.height, App.screen.flags)\n print('initializing source position')\n if Settings == nil then Settings = {} end\n if Settings.source == nil then Settings.source = {} end\n Settings.source.x, Settings.source.y, Settings.source.displayindex = love.window.getPosition()\nend\n\nfunction source.resize(w, h)\n--? print((\"Window resized to width: %d and height: %d.\"):format(w, h))\n App.screen.width, App.screen.height = w, h\n Text.redraw_all(Editor_state)\n Editor_state.selection1 = {} -- no support for shift drag while we're resizing\n if Show_log_browser_side then\n Editor_state.right = App.screen.width/2 - Margin_right\n else\n Editor_state.right = App.screen.width-Margin_right\n end\n Log_browser_state.left = App.screen.width/2 + Margin_right\n Log_browser_state.right = App.screen.width-Margin_right\n Editor_state.width = Editor_state.right-Editor_state.left\n Text.tweak_screen_top_and_cursor(Editor_state, Editor_state.left, Editor_state.right)\n--? print('end resize')\nend\n\nfunction source.filedropped(file)\n -- first make sure to save edits on any existing file\n if Editor_state.next_save then\n save_to_disk(Editor_state)\n end\n -- clear the slate for the new file\n Editor_state.filename = file:getFilename()\n file:open('r')\n Editor_state.lines = load_from_file(file)\n file:close()\n Text.redraw_all(Editor_state)\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.cursor1 = {line=1, pos=1}\nend\n\n-- a copy of source.filedropped when given a filename\nfunction source.switch_to_file(filename)\n -- first make sure to save edits on any existing file\n if Editor_state.next_save then\n save_to_disk(Editor_state)\n end\n -- clear the slate for the new file\n Editor_state.filename = filename\n load_from_disk(Editor_state)\n Text.redraw_all(Editor_state)\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.cursor1 = {line=1, pos=1}\nend\n\nfunction source.draw()\n source.draw_menu_bar()\n edit.draw(Editor_state)\n if Show_log_browser_side then\n -- divider\n App.color(Divider_color)\n love.graphics.rectangle('fill', App.screen.width/2-1,Menu_status_bar_height, 3,App.screen.height)\n --\n log_browser.draw(Log_browser_state)\n end\nend\n\nfunction source.update(dt)\n Cursor_time = Cursor_time + dt\n if App.mouse_x() < Editor_state.right then\n edit.update(Editor_state, dt)\n elseif Show_log_browser_side then\n log_browser.update(Log_browser_state, dt)\n end\nend\n\nfunction source.quit()\n edit.quit(Editor_state)\n log_browser.quit(Log_browser_state)\n -- convert any bifold files here\nend\n\nfunction source.convert_bifold_text(infilename, outfilename)\n local contents = love.filesystem.read(infilename)\n contents = contents:gsub('\\u{1e}', ';')\n love.filesystem.write(outfilename, contents)\nend\n\nfunction source.settings()\n if Current_app == 'source' then\n--? print('reading source window position')\n Settings.source.x, Settings.source.y, Settings.source.displayindex = love.window.getPosition()\n end\n local filename = Editor_state.filename\n if filename:sub(1,1) ~= '/' then\n filename = love.filesystem.getWorkingDirectory()..'/'..filename -- '/' should work even on Windows\n end\n--? print('saving source settings', Settings.source.x, Settings.source.y, Settings.source.displayindex)\n return {\n x=Settings.source.x, y=Settings.source.y, displayindex=Settings.source.displayindex,\n width=App.screen.width, height=App.screen.height,\n font_height=Editor_state.font_height,\n filename=filename,\n screen_top=Editor_state.screen_top1, cursor=Editor_state.cursor1,\n show_log_browser_side=Show_log_browser_side,\n focus=Focus,\n }\nend\n\nfunction source.mouse_pressed(x,y, mouse_button)\n Cursor_time = 0 -- ensure cursor is visible immediately after it moves\n--? print('mouse click', x, y)\n--? print(Editor_state.left, Editor_state.right)\n--? print(Log_browser_state.left, Log_browser_state.right)\n if Editor_state.left <= x and x < Editor_state.right then\n--? print('click on edit side')\n if Focus ~= 'edit' then\n Focus = 'edit'\n end\n edit.mouse_pressed(Editor_state, x,y, mouse_button)\n elseif Show_log_browser_side and Log_browser_state.left <= x and x < Log_browser_state.right then\n--? print('click on log_browser side')\n if Focus ~= 'log_browser' then\n Focus = 'log_browser'\n end\n log_browser.mouse_pressed(Log_browser_state, x,y, mouse_button)\n for _,line_cache in ipairs(Editor_state.line_cache) do line_cache.starty = nil end -- just in case we scroll\n end\nend\n\nfunction source.mouse_released(x,y, mouse_button)\n Cursor_time = 0 -- ensure cursor is visible immediately after it moves\n if Focus == 'edit' then\n return edit.mouse_released(Editor_state, x,y, mouse_button)\n else\n return log_browser.mouse_released(Log_browser_state, x,y, mouse_button)\n end\nend\n\nfunction source.textinput(t)\n Cursor_time = 0 -- ensure cursor is visible immediately after it moves\n if Focus == 'edit' then\n return edit.textinput(Editor_state, t)\n else\n return log_browser.textinput(Log_browser_state, t)\n end\nend\n\nfunction source.keychord_pressed(chord, key)\n Cursor_time = 0 -- ensure cursor is visible immediately after it moves\n--? print('source keychord')\n if Show_file_navigator then\n keychord_pressed_on_file_navigator(chord, key)\n return\n end\n if chord == 'C-l' then\n--? print('C-l')\n Show_log_browser_side = not Show_log_browser_side\n if Show_log_browser_side then\n App.screen.width = Log_browser_state.right + Margin_right\n else\n App.screen.width = Editor_state.right + Margin_right\n end\n--? print('setting window:', App.screen.width, App.screen.height)\n love.window.setMode(App.screen.width, App.screen.height, App.screen.flags)\n--? print('done setting window')\n -- try to restore position if possible\n -- if the window gets wider the window manager may not respect this\n source.set_window_position_from_settings(Settings.source)\n return\n end\n if chord == 'C-g' then\n Show_file_navigator = true\n File_navigation.index = 1\n return\n end\n if Focus == 'edit' then\n return edit.keychord_pressed(Editor_state, chord, key)\n else\n return log_browser.keychord_pressed(Log_browser_state, chord, key)\n end\nend\n\nfunction source.key_released(key, scancode)\n Cursor_time = 0 -- ensure cursor is visible immediately after it moves\n if Focus == 'edit' then\n return edit.key_released(Editor_state, key, scancode)\n else\n return log_browser.keychord_pressed(Log_browser_state, chordkey, scancode)\n end\nend\n\n-- use this sparingly\nfunction to_text(s)\n if Text_cache[s] == nil then\n Text_cache[s] = App.newText(love.graphics.getFont(), s)\n end\n return Text_cache[s]\nend\n"}]}},{"FileDel":{"deleted_names":[{"basename":"run.lua","metadata":0}],"del":{"EdgeMap":{"edges":[{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":5,"pos":2},"to":{"change":4,"start":184046,"end":184077},"introduced_by":4},{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":4,"pos":184077},"to":{"change":4,"start":178044,"end":178044},"introduced_by":4}],"inode":{"change":4,"pos":178044}}},"content_edges":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":4,"pos":178044},"to":{"change":4,"start":178045,"end":184045},"introduced_by":4}],"inode":{"change":4,"pos":178044}},"content":[{"Del":"run = {}\n\nEditor_state = {}\n\n-- called both in tests and real run\nfunction run.initialize_globals()\n -- tests currently mostly clear their own state\n\n -- a few text objects we can avoid recomputing unless the font changes\n Text_cache = {}\n\n -- blinking cursor\n Cursor_time = 0\nend\n\n-- called only for real run\nfunction run.initialize(arg)\n love.keyboard.setTextInput(true) -- bring up keyboard on touch screen\n love.keyboard.setKeyRepeat(true)\n\n love.graphics.setBackgroundColor(1,1,1)\n\n if Settings then\n run.load_settings()\n else\n run.initialize_default_settings()\n end\n\n if #arg > 0 then\n Editor_state.filename = arg[1]\n load_from_disk(Editor_state)\n Text.redraw_all(Editor_state)\n Editor_state.screen_top1 = {line=1, pos=1}\n Editor_state.cursor1 = {line=1, pos=1}\n edit.fixup_cursor(Editor_state)\n else\n load_from_disk(Editor_state)\n Text.redraw_all(Editor_state)\n if Editor_state.cursor1.line > #Editor_state.lines or Editor_state.lines[Editor_state.cursor1.line].mode ~= 'text' then\n edit.fixup_cursor(Editor_state)\n end\n end\n love.window.setTitle('lines.love - '..Editor_state.filename)\n\n if #arg > 1 then\n print('ignoring commandline args after '..arg[1])\n end\n\n if rawget(_G, 'jit') then\n jit.off()\n jit.flush()\n end\nend\n\nfunction run.load_settings()\n love.graphics.setFont(love.graphics.newFont(Settings.font_height))\n -- maximize window to determine maximum allowable dimensions\n App.screen.width, App.screen.height, App.screen.flags = love.window.getMode()\n -- set up desired window dimensions\n love.window.setPosition(Settings.x, Settings.y, Settings.displayindex)\n App.screen.flags.resizable = true\n App.screen.flags.minwidth = math.min(App.screen.width, 200)\n App.screen.flags.minheight = math.min(App.screen.width, 200)\n App.screen.width, App.screen.height = Settings.width, Settings.height\n love.window.setMode(App.screen.width, App.screen.height, App.screen.flags)\n Editor_state = edit.initialize_state(Margin_top, Margin_left, App.screen.width-Margin_right, Settings.font_height, math.floor(Settings.font_height*1.3))\n Editor_state.filename = Settings.filename\n Editor_state.screen_top1 = Settings.screen_top\n Editor_state.cursor1 = Settings.cursor\nend\n\nfunction run.initialize_default_settings()\n local font_height = 20\n love.graphics.setFont(love.graphics.newFont(font_height))\n local em = App.newText(love.graphics.getFont(), 'm')\n run.initialize_window_geometry(App.width(em))\n Editor_state = edit.initialize_state(Margin_top, Margin_left, App.screen.width-Margin_right)\n Editor_state.font_height = font_height\n Editor_state.line_height = math.floor(font_height*1.3)\n Editor_state.em = em\n Settings = run.settings()\nend\n\nfunction run.initialize_window_geometry(em_width)\n -- maximize window\n love.window.setMode(0, 0) -- maximize\n App.screen.width, App.screen.height, App.screen.flags = love.window.getMode()\n -- shrink height slightly to account for window decoration\n App.screen.height = App.screen.height-100\n App.screen.width = 40*em_width\n App.screen.flags.resizable = true\n App.screen.flags.minwidth = math.min(App.screen.width, 200)\n App.screen.flags.minheight = math.min(App.screen.width, 200)\n love.window.setMode(App.screen.width, App.screen.height, App.screen.flags)\nend\n\nfunction run.resize(w, h)\n--? print((\"Window resized to width: %d and height: %d.\"):format(w, h))\n App.screen.width, App.screen.height = w, h\n Text.redraw_all(Editor_state)\n Editor_state.selection1 = {} -- no support for shift drag while we're resizing\n Editor_state.right = App.screen.width-Margin_right\n Editor_state.width = Editor_state.right-Editor_state.left\n Text.tweak_screen_top_and_cursor(Editor_state, Editor_state.left, Editor_state.right)\nend\n\nfunction run.filedropped(file)\n -- first make sure to save edits on any existing file\n if Editor_state.next_save then\n save_to_disk(Editor_state)\n end\n -- clear the slate for the new file\n App.initialize_globals()\n Editor_state.filename = file:getFilename()\n file:open('r')\n Editor_state.lines = load_from_file(file)\n file:close()\n Text.redraw_all(Editor_state)\n edit.fixup_cursor(Editor_state)\n love.window.setTitle('lines.love - '..Editor_state.filename)\nend\n\nfunction run.draw()\n edit.draw(Editor_state)\nend\n\nfunction run.update(dt)\n Cursor_time = Cursor_time + dt\n edit.update(Editor_state, dt)\nend\n\nfunction run.quit()\n edit.quit(Editor_state)\nend\n\nfunction run.settings()\n local x,y,displayindex = love.window.getPosition()\n local filename = Editor_state.filename\n if filename:sub(1,1) ~= '/' then\n filename = love.filesystem.getWorkingDirectory()..'/'..filename -- '/' should work even on Windows\n end\n return {\n x=x, y=y, displayindex=displayindex,\n width=App.screen.width, height=App.screen.height,\n font_height=Editor_state.font_height,\n filename=filename,\n screen_top=Editor_state.screen_top1, cursor=Editor_state.cursor1\n }\nend\n\nfunction run.mouse_pressed(x,y, mouse_button)\n Cursor_time = 0 -- ensure cursor is visible immediately after it moves\n return edit.mouse_pressed(Editor_state, x,y, mouse_button)\nend\n\nfunction run.mouse_released(x,y, mouse_button)\n Cursor_time = 0 -- ensure cursor is visible immediately after it moves\n return edit.mouse_released(Editor_state, x,y, mouse_button)\nend\n\nfunction run.textinput(t)\n Cursor_time = 0 -- ensure cursor is visible immediately after it moves\n return edit.textinput(Editor_state, t)\nend\n\nfunction run.keychord_pressed(chord, key)\n Cursor_time = 0 -- ensure cursor is visible immediately after it moves\n return edit.keychord_pressed(Editor_state, chord, key)\nend\n\nfunction run.key_released(key, scancode)\n Cursor_time = 0 -- ensure cursor is visible immediately after it moves\n return edit.key_released(Editor_state, key, scancode)\nend\n\n-- use this sparingly\nfunction to_text(s)\n if Text_cache[s] == nil then\n Text_cache[s] = App.newText(love.graphics.getFont(), s)\n end\n return Text_cache[s]\nend\n"}]}},{"FileDel":{"deleted_names":[{"basename":"log_browser.lua","metadata":0}],"del":{"EdgeMap":{"edges":[{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":5,"pos":2},"to":{"change":4,"start":203223,"end":203262},"introduced_by":4},{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":4,"pos":203262},"to":{"change":4,"start":191782,"end":191782},"introduced_by":4}],"inode":{"change":4,"pos":191782}}},"content_edges":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":4,"pos":191782},"to":{"change":4,"start":191783,"end":203222},"introduced_by":4}],"inode":{"change":4,"pos":191782}},"content":[{"Del":"-- environment for immutable logs\n-- optionally reads extensions for rendering some types from the source codebase that generated them\n--\n-- We won't care too much about long, wrapped lines. If they lines get too\n-- long to manage, you need a better, graphical rendering for them. Load\n-- functions to render them into the log_render namespace.\n\nfunction source.initialize_log_browser_side()\n 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)\n Log_browser_state.filename = 'log'\n load_from_disk(Log_browser_state) -- TODO: pay no attention to Fold\n log_browser.parse(Log_browser_state)\n Text.redraw_all(Log_browser_state)\n Log_browser_state.screen_top1 = {line=1, pos=1}\n Log_browser_state.cursor1 = {line=1, pos=nil}\nend\n\nSection_stack = {}\nSection_border_color = {r=0.7, g=0.7, b=0.7}\nCursor_line_background_color = {r=0.7, g=0.7, b=0, a=0.1}\n\nSection_border_padding_horizontal = 30 -- TODO: adjust this based on font height (because we draw text vertically along the borders\nSection_border_padding_vertical = 15 -- TODO: adjust this based on font height\n\nlog_browser = {}\n\nfunction log_browser.parse(State)\n for _,line in ipairs(State.lines) do\n if line.data ~= '' then\n line.filename, line.line_number, line.data = line.data:match('%[string \"([^:]*)\"%]:([^:]*):%s*(.*)')\n line.filename = guess_source(line.filename)\n line.line_number = tonumber(line.line_number)\n if line.data:sub(1,1) == '{' then\n local data = json.decode(line.data)\n if log_render[data.name] then\n line.data = data\n end\n line.section_stack = table.shallowcopy(Section_stack)\n elseif line.data:match('\\u{250c}') then\n line.section_stack = table.shallowcopy(Section_stack) -- as it is at the beginning\n local section_name = line.data:match('\\u{250c}%s*(.*)')\n table.insert(Section_stack, {name=section_name})\n line.section_begin = true\n line.section_name = section_name\n line.data = nil\n elseif line.data:match('\\u{2518}') then\n local section_name = line.data:match('\\u{2518}%s*(.*)')\n if array.find(Section_stack, function(x) return x.name == section_name end) then\n while table.remove(Section_stack).name ~= section_name do\n --\n end\n line.section_end = true\n line.section_name = section_name\n line.data = nil\n end\n line.section_stack = table.shallowcopy(Section_stack)\n else\n -- string\n line.section_stack = table.shallowcopy(Section_stack)\n end\n else\n line.section_stack = {}\n end\n end\nend\n\nfunction table.shallowcopy(x)\n return {unpack(x)}\nend\n\nfunction guess_source(filename)\n local possible_source = filename:gsub('%.lua$', '%.splua')\n if file_exists(possible_source) then\n return possible_source\n else\n return filename\n end\nend\n\nfunction log_browser.draw(State)\n assert(#State.lines == #State.line_cache)\n local mouse_line_index = log_browser.line_index(State, App.mouse_x(), App.mouse_y())\n local y = State.top\n for line_index = State.screen_top1.line,#State.lines do\n App.color(Text_color)\n local line = State.lines[line_index]\n if y + State.line_height > App.screen.height then break end\n local height = State.line_height\n if should_show(line) then\n local xleft = render_stack_left_margin(State, line_index, line, y)\n local xright = render_stack_right_margin(State, line_index, line, y)\n if line.section_name then\n App.color(Section_border_color)\n local section_text = to_text(line.section_name)\n if line.section_begin then\n local sectiony = y+Section_border_padding_vertical\n love.graphics.line(xleft,sectiony, xleft,y+State.line_height)\n love.graphics.line(xright,sectiony, xright,y+State.line_height)\n love.graphics.line(xleft,sectiony, xleft+50-2,sectiony)\n love.graphics.draw(section_text, xleft+50,y)\n love.graphics.line(xleft+50+App.width(section_text)+2,sectiony, xright,sectiony)\n else assert(line.section_end)\n local sectiony = y+State.line_height-Section_border_padding_vertical\n love.graphics.line(xleft,y, xleft,sectiony)\n love.graphics.line(xright,y, xright,sectiony)\n love.graphics.line(xleft,sectiony, xleft+50-2,sectiony)\n love.graphics.draw(section_text, xleft+50,y)\n love.graphics.line(xleft+50+App.width(section_text)+2,sectiony, xright,sectiony)\n end\n else\n if type(line.data) == 'string' then\n local old_left, old_right = State.left,State.right\n State.left,State.right = xleft,xright\n y = Text.draw(State, line_index, y, --[[startpos]] 1)\n State.left,State.right = old_left,old_right\n else\n height = log_render[line.data.name](line.data, xleft, y, xright-xleft)\n end\n end\n if App.mouse_x() > Log_browser_state.left and line_index == mouse_line_index then\n App.color(Cursor_line_background_color)\n love.graphics.rectangle('fill', xleft,y, xright-xleft, height)\n end\n y = y + height\n end\n end\nend\n\nfunction render_stack_left_margin(State, line_index, line, y)\n if line.section_stack == nil then\n -- assertion message\n for k,v in pairs(line) do\n print(k)\n end\n end\n App.color(Section_border_color)\n for i=1,#line.section_stack do\n local x = State.left + (i-1)*Section_border_padding_horizontal\n love.graphics.line(x,y, x,y+log_browser.height(State, line_index))\n if y < 30 then\n love.graphics.print(line.section_stack[i].name, x+State.font_height+5, y+5, --[[vertically]] math.pi/2)\n end\n if y > App.screen.height-log_browser.height(State, line_index) then\n 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)\n end\n end\n return log_browser.left_margin(State, line)\nend\n\nfunction render_stack_right_margin(State, line_index, line, y)\n App.color(Section_border_color)\n for i=1,#line.section_stack do\n local x = State.right - (i-1)*Section_border_padding_horizontal\n love.graphics.line(x,y, x,y+log_browser.height(State, line_index))\n if y < 30 then\n love.graphics.print(line.section_stack[i].name, x, y+5, --[[vertically]] math.pi/2)\n end\n if y > App.screen.height-log_browser.height(State, line_index) then\n 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)\n end\n end\n return log_browser.right_margin(State, line)\nend\n\nfunction should_show(line)\n -- Show a line if every single section it's in is expanded.\n for i=1,#line.section_stack do\n local section = line.section_stack[i]\n if not section.expanded then\n return false\n end\n end\n return true\nend\n\nfunction log_browser.left_margin(State, line)\n return State.left + #line.section_stack*Section_border_padding_horizontal\nend\n\nfunction log_browser.right_margin(State, line)\n return State.right - #line.section_stack*Section_border_padding_horizontal\nend\n\nfunction log_browser.update(State, dt)\nend\n\nfunction log_browser.quit(State)\nend\n\nfunction log_browser.mouse_pressed(State, x,y, mouse_button)\n local line_index = log_browser.line_index(State, x,y)\n if line_index == nil then\n -- below lower margin\n return\n end\n -- leave some space to click without focusing\n local line = State.lines[line_index]\n local xleft = log_browser.left_margin(State, line)\n local xright = log_browser.right_margin(State, line)\n if x < xleft or x > xright then\n return\n end\n -- if it's a section begin/end and the section is collapsed, expand it\n -- TODO: how to collapse?\n if line.section_begin or line.section_end then\n -- HACK: get section reference from next/previous line\n local new_section\n if line.section_begin then\n if line_index < #State.lines then\n local next_section_stack = State.lines[line_index+1].section_stack\n if next_section_stack then\n new_section = next_section_stack[#next_section_stack]\n end\n end\n elseif line.section_end then\n if line_index > 1 then\n local previous_section_stack = State.lines[line_index-1].section_stack\n if previous_section_stack then\n new_section = previous_section_stack[#previous_section_stack]\n end\n end\n end\n if new_section and new_section.expanded == nil then\n new_section.expanded = true\n return\n end\n end\n -- open appropriate file in source side\n if line.filename ~= Editor_state.filename then\n source.switch_to_file(line.filename)\n end\n -- set cursor\n Editor_state.cursor1 = {line=line.line_number, pos=1, posB=nil}\n -- make sure it's visible\n -- TODO: handle extremely long lines\n Editor_state.screen_top1.line = math.max(0, Editor_state.cursor1.line-5)\n -- show cursor\n Focus = 'edit'\n -- expand B side\n Editor_state.expanded = true\nend\n\nfunction log_browser.line_index(State, mx,my)\n -- duplicate some logic from log_browser.draw\n local y = State.top\n for line_index = State.screen_top1.line,#State.lines do\n local line = State.lines[line_index]\n if should_show(line) then\n y = y + log_browser.height(State, line_index)\n if my < y then\n return line_index\n end\n if y > App.screen.height then break end\n end\n end\nend\n\nfunction log_browser.mouse_released(State, x,y, mouse_button)\nend\n\nfunction log_browser.textinput(State, t)\nend\n\nfunction log_browser.keychord_pressed(State, chord, key)\n -- move\n if chord == 'up' then\n while State.screen_top1.line > 1 do\n State.screen_top1.line = State.screen_top1.line-1\n if should_show(State.lines[State.screen_top1.line]) then\n break\n end\n end\n elseif chord == 'down' then\n while State.screen_top1.line < #State.lines do\n State.screen_top1.line = State.screen_top1.line+1\n if should_show(State.lines[State.screen_top1.line]) then\n break\n end\n end\n elseif chord == 'pageup' then\n local y = 0\n while State.screen_top1.line > 1 and y < App.screen.height - 100 do\n State.screen_top1.line = State.screen_top1.line - 1\n if should_show(State.lines[State.screen_top1.line]) then\n y = y + log_browser.height(State, State.screen_top1.line)\n end\n end\n elseif chord == 'pagedown' then\n local y = 0\n while State.screen_top1.line < #State.lines and y < App.screen.height - 100 do\n if should_show(State.lines[State.screen_top1.line]) then\n y = y + log_browser.height(State, State.screen_top1.line)\n end\n State.screen_top1.line = State.screen_top1.line + 1\n end\n end\nend\n\nfunction log_browser.height(State, line_index)\n local line = State.lines[line_index]\n if line.data == nil then\n -- section header\n return State.line_height\n elseif type(line.data) == 'string' then\n return State.line_height\n else\n if line.height == nil then\n--? print('nil line height! rendering off screen to calculate')\n line.height = log_render[line.data.name](line.data, State.left, App.screen.height, State.right-State.left)\n end\n return line.height\n end\nend\n\nfunction log_browser.keyreleased(State, key, scancode)\nend\n"}]}},{"FileDel":{"deleted_names":[{"basename":"log.lua","metadata":0}],"del":{"EdgeMap":{"edges":[{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":5,"pos":2},"to":{"change":4,"start":204116,"end":204147},"introduced_by":4},{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":4,"pos":204147},"to":{"change":4,"start":203264,"end":203264},"introduced_by":4}],"inode":{"change":4,"pos":203264}}},"content_edges":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":4,"pos":203264},"to":{"change":4,"start":203265,"end":204115},"introduced_by":4}],"inode":{"change":4,"pos":203264}},"content":[{"Del":"function log(stack_frame_index, obj)\n\tlocal info = debug.getinfo(stack_frame_index, 'Sl')\n\tlocal msg\n\tif type(obj) == 'string' then\n\t\tmsg = obj\n\telse\n\t\tmsg = json.encode(obj)\n\tend\n\tlove.filesystem.append('log', info.short_src..':'..info.currentline..': '..msg..'\\n')\nend\n\n-- for section delimiters we'll use specific Unicode box characters\nfunction log_start(name, stack_frame_index)\n\tif stack_frame_index == nil then\n\t\tstack_frame_index = 3\n\tend\n\tlog(stack_frame_index, '\\u{250c} ' .. name)\nend\nfunction log_end(name, stack_frame_index)\n\tif stack_frame_index == nil then\n\t\tstack_frame_index = 3\n\tend\n\tlog(stack_frame_index, '\\u{2518} ' .. name)\nend\n\nfunction log_new(name, stack_frame_index)\n\tif stack_frame_index == nil then\n\t\tstack_frame_index = 4\n\tend\n\tlog_end(name, stack_frame_index)\n\tlog_start(name, stack_frame_index)\nend\n\n-- vim:noexpandtab\n"}]}},{"FileDel":{"deleted_names":[{"basename":"commands.lua","metadata":0}],"del":{"EdgeMap":{"edges":[{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":5,"pos":2},"to":{"change":4,"start":207726,"end":207762},"introduced_by":4},{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":4,"pos":207762},"to":{"change":4,"start":204370,"end":204370},"introduced_by":4}],"inode":{"change":4,"pos":204370}}},"content_edges":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":4,"pos":204370},"to":{"change":4,"start":204371,"end":207725},"introduced_by":4}],"inode":{"change":4,"pos":204370}},"content":[{"Del":"Menu_background_color = {r=0.6, g=0.8, b=0.6}\nMenu_border_color = {r=0.6, g=0.7, b=0.6}\nMenu_command_color = {r=0.2, g=0.2, b=0.2}\nMenu_highlight_color = {r=0.5, g=0.7, b=0.3}\n\nfunction source.draw_menu_bar()\n if App.run_tests then return end -- disable in tests\n App.color(Menu_background_color)\n love.graphics.rectangle('fill', 0,0, App.screen.width, Menu_status_bar_height)\n App.color(Menu_border_color)\n love.graphics.rectangle('line', 0,0, App.screen.width, Menu_status_bar_height)\n App.color(Menu_command_color)\n Menu_cursor = 5\n if Show_file_navigator then\n source.draw_file_navigator()\n return\n end\n add_hotkey_to_menu('ctrl+e: run')\n if Focus == 'edit' then\n add_hotkey_to_menu('ctrl+g: switch file')\n if Show_log_browser_side then\n add_hotkey_to_menu('ctrl+l: hide log browser')\n else\n add_hotkey_to_menu('ctrl+l: show log browser')\n end\n if Editor_state.expanded then\n add_hotkey_to_menu('ctrl+b: collapse debug prints')\n else\n add_hotkey_to_menu('ctrl+b: expand debug prints')\n end\n add_hotkey_to_menu('ctrl+d: create/edit debug print')\n add_hotkey_to_menu('ctrl+f: find in file')\n add_hotkey_to_menu('alt+left alt+right: prev/next word')\n elseif Focus == 'log_browser' then\n -- nothing yet\n else\n assert(false, 'unknown focus \"'..Focus..'\"')\n end\n add_hotkey_to_menu('ctrl+z ctrl+y: undo/redo')\n add_hotkey_to_menu('ctrl+x ctrl+c ctrl+v: cut/copy/paste')\n add_hotkey_to_menu('ctrl+= ctrl+- ctrl+0: zoom')\nend\n\nfunction add_hotkey_to_menu(s)\n if Text_cache[s] == nil then\n Text_cache[s] = App.newText(love.graphics.getFont(), s)\n end\n local width = App.width(Text_cache[s])\n if Menu_cursor + width > App.screen.width - 5 then\n return\n end\n App.color(Menu_command_color)\n App.screen.draw(Text_cache[s], Menu_cursor,5)\n Menu_cursor = Menu_cursor + width + 30\nend\n\nfunction source.draw_file_navigator()\n for i,file in ipairs(File_navigation.candidates) do\n if file == 'source' then\n App.color(Menu_border_color)\n love.graphics.line(Menu_cursor-10,2, Menu_cursor-10,Menu_status_bar_height-2)\n end\n add_file_to_menu(file, i == File_navigation.index)\n end\nend\n\nfunction add_file_to_menu(s, cursor_highlight)\n if Text_cache[s] == nil then\n Text_cache[s] = App.newText(love.graphics.getFont(), s)\n end\n local width = App.width(Text_cache[s])\n if Menu_cursor + width > App.screen.width - 5 then\n return\n end\n if cursor_highlight then\n App.color(Menu_highlight_color)\n love.graphics.rectangle('fill', Menu_cursor-5,5-2, App.width(Text_cache[s])+5*2,Editor_state.line_height+2*2)\n end\n App.color(Menu_command_color)\n App.screen.draw(Text_cache[s], Menu_cursor,5)\n Menu_cursor = Menu_cursor + width + 30\nend\n\nfunction keychord_pressed_on_file_navigator(chord, key)\n if chord == 'escape' then\n Show_file_navigator = false\n elseif chord == 'return' then\n local candidate = guess_source(File_navigation.candidates[File_navigation.index]..'.lua')\n source.switch_to_file(candidate)\n Show_file_navigator = false\n elseif chord == 'left' then\n if File_navigation.index > 1 then\n File_navigation.index = File_navigation.index-1\n end\n elseif chord == 'right' then\n if File_navigation.index < #File_navigation.candidates then\n File_navigation.index = File_navigation.index+1\n end\n end\nend\n"}]}},{"FileDel":{"deleted_names":[{"basename":"colorize.lua","metadata":0}],"del":{"EdgeMap":{"edges":[{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":5,"pos":2},"to":{"change":4,"start":209677,"end":209713},"introduced_by":4},{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":4,"pos":209713},"to":{"change":4,"start":207764,"end":207764},"introduced_by":4}],"inode":{"change":4,"pos":207764}}},"content_edges":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":4,"pos":207764},"to":{"change":4,"start":207765,"end":209676},"introduced_by":4}],"inode":{"change":4,"pos":207764}},"content":[{"Del":"-- State transitions while colorizing a single line.\n-- Just for comments and strings.\n-- Limitation: each fragment gets a uniform color so we can only change color\n-- at word boundaries.\nNext_state = {\n normal={\n {prefix='--', target='comment'},\n {prefix='\"', target='dstring'},\n {prefix=\"'\", target='sstring'},\n },\n dstring={\n {suffix='\"', target='normal'},\n },\n sstring={\n {suffix=\"'\", target='normal'},\n },\n -- comments are a sink\n}\n\nComments_color = {r=0, g=0, b=1}\nString_color = {r=0, g=0.5, b=0.5}\nDivider_color = {r=0.7, g=0.7, b=0.7}\n\nColors = {\n normal=Text_color,\n comment=Comments_color,\n sstring=String_color,\n dstring=String_color\n}\n\nCurrent_state = 'normal'\n\nfunction initialize_color()\n--? print('new line')\n Current_state = 'normal'\nend\n\nfunction select_color(frag)\n--? print('before', '^'..frag..'$', Current_state)\n switch_color_based_on_prefix(frag)\n--? print('using color', Current_state, Colors[Current_state])\n App.color(Colors[Current_state])\n switch_color_based_on_suffix(frag)\n--? print('state after suffix', Current_state)\nend\n\nfunction switch_color_based_on_prefix(frag)\n if Next_state[Current_state] == nil then\n return\n end\n frag = rtrim(frag)\n for _,edge in pairs(Next_state[Current_state]) do\n if edge.prefix and find(frag, edge.prefix, nil, --[[plain]] true) == 1 then\n Current_state = edge.target\n break\n end\n end\nend\n\nfunction switch_color_based_on_suffix(frag)\n if Next_state[Current_state] == nil then\n return\n end\n frag = rtrim(frag)\n for _,edge in pairs(Next_state[Current_state]) do\n if edge.suffix and rfind(frag, edge.suffix, nil, --[[plain]] true) == #frag then\n Current_state = edge.target\n break\n end\n end\nend\n\nfunction trim(s)\n return s:gsub('^%s+', ''):gsub('%s+$', '')\nend\n\nfunction ltrim(s)\n return s:gsub('^%s+', '')\nend\n\nfunction rtrim(s)\n return s:gsub('%s+$', '')\nend\n"}]}},{"ResurrectZombie":{"inode":{"change":5,"pos":1},"path":"text.lua","line":3,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK","from":{"change":5,"pos":43},"to":{"change":3,"start":3,"end":65},"introduced_by":3},{"previous":"BLOCK | DELETED","flag":"BLOCK","from":{"change":5,"pos":43},"to":{"change":3,"start":3,"end":65},"introduced_by":4}],"inode":{"change":5,"pos":1}}},"contents":[{"Add":"AB_padding = 20 -- space in pixels between A side and B side\n"}]}},{"Edit":{"inode":{"change":5,"pos":1},"path":"text.lua","line":4,"atom":{"NewVertex":{"up_context":[{"change":3,"pos":65}],"down_context":[{"change":5,"pos":3}],"flag":"BLOCK","start":3,"end":4,"inode":{"change":5,"pos":1}}},"contents":[{"Add":""}]}},{"Edit":{"inode":{"change":5,"pos":48846},"path":"search.lua","line":33,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":5,"pos":219},"to":{"change":3,"start":177752,"end":177794},"introduced_by":3}],"inode":{"change":5,"pos":48846}}},"contents":[{"Del":" State.cursor1 = {line=i, pos=pos}\n"}]}},{"Edit":{"inode":{"change":5,"pos":48846},"path":"search.lua","line":43,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":5,"pos":50207},"to":{"change":3,"start":177795,"end":177837},"introduced_by":3}],"inode":{"change":5,"pos":48846}}},"contents":[{"Del":" State.cursor1 = {line=i, pos=pos}\n"}]}},{"Edit":{"inode":{"change":5,"pos":48846},"path":"search.lua","line":79,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":5,"pos":51016},"to":{"change":3,"start":177838,"end":177880},"introduced_by":3}],"inode":{"change":5,"pos":48846}}},"contents":[{"Del":" State.cursor1 = {line=i, pos=pos}\n"}]}},{"Edit":{"inode":{"change":5,"pos":48846},"path":"search.lua","line":89,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":5,"pos":51247},"to":{"change":3,"start":177881,"end":177923},"introduced_by":3}],"inode":{"change":5,"pos":48846}}},"contents":[{"Del":" State.cursor1 = {line=i, pos=pos}\n"}]}},{"Edit":{"inode":{"change":5,"pos":48846},"path":"search.lua","line":114,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":5,"pos":507},"to":{"change":3,"start":177924,"end":177956},"introduced_by":3}],"inode":{"change":5,"pos":48846}}},"contents":[{"Del":"function find(s, pat, i, plain)\n"}]}},{"Edit":{"inode":{"change":5,"pos":48846},"path":"search.lua","line":116,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":5,"pos":562},"to":{"change":3,"start":177957,"end":177988},"introduced_by":3}],"inode":{"change":5,"pos":48846}}},"contents":[{"Del":" return s:find(pat, i, plain)\n"}]}},{"Edit":{"inode":{"change":5,"pos":48846},"path":"search.lua","line":119,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":5,"pos":51767},"to":{"change":3,"start":177989,"end":178022},"introduced_by":3}],"inode":{"change":5,"pos":48846}}},"contents":[{"Del":"function rfind(s, pat, i, plain)\n"}]}},{"Edit":{"inode":{"change":5,"pos":48846},"path":"search.lua","line":125,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":5,"pos":51901},"to":{"change":3,"start":178023,"end":178066},"introduced_by":3}],"inode":{"change":5,"pos":48846}}},"contents":[{"Del":" local rendpos = rs:find(rpat, ri, plain)\n"}]}},{"SolveNameConflict":{"old":[{"basename":"run_tests.lua","metadata":0},{"basename":"main_tests.lua","metadata":0},{"basename":"main_tests.lua","metadata":0}],"name":{"EdgeMap":{"edges":[{"previous":"BLOCK | FOLDER","flag":"BLOCK | FOLDER | DELETED","from":{"change":5,"pos":2},"to":{"change":3,"start":178068,"end":178105},"introduced_by":3},{"previous":"BLOCK | FOLDER | DELETED","flag":"BLOCK | FOLDER | DELETED","from":{"change":5,"pos":2},"to":{"change":5,"start":1125,"end":1163},"introduced_by":4},{"previous":"BLOCK | FOLDER | DELETED","flag":"BLOCK | FOLDER | DELETED","from":{"change":5,"pos":2},"to":{"change":5,"start":1125,"end":1163},"introduced_by":3}],"inode":{"change":5,"pos":2}}}}},{"Edit":{"inode":{"change":5,"pos":2},"path":"main.lua","line":1,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":5,"pos":2},"to":{"change":3,"start":183900,"end":184064},"introduced_by":3}],"inode":{"change":5,"pos":2}}},"contents":[{"Del":"-- Entrypoint for the app. You can edit this file from within the app if\n-- you're careful.\n\n-- files that come with LÖVE; we can't edit those from within the 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\"'..Current_app..'\"')\n"}]}},{"SolveOrderConflict":{"inode":{"change":5,"pos":2},"path":"main.lua","line":192,"atom":{"NewVertex":{"up_context":[{"change":3,"pos":189647}],"down_context":[{"change":4,"pos":189946}],"flag":"","start":56,"end":56,"inode":{"change":5,"pos":2}}},"contents":[]}},{"Edit":{"inode":{"change":5,"pos":2},"path":"main.lua","line":204,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":5,"pos":3121},"to":{"change":4,"start":190187,"end":190296},"introduced_by":4}],"inode":{"change":5,"pos":2}}},"contents":[{"Del":"function App.keyreleased(chord, key)\n -- ignore events for some time after window in focus (mostly alt-tab)\n"}]}},{"SolveOrderConflict":{"inode":{"change":5,"pos":2},"path":"main.lua","line":204,"atom":{"NewVertex":{"up_context":[{"change":3,"pos":189757}],"down_context":[{"change":5,"pos":406}],"flag":"","start":58,"end":58,"inode":{"change":5,"pos":2}}},"contents":[]}},{"Edit":{"inode":{"change":5,"pos":2},"path":"main.lua","line":206,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":5,"pos":466},"to":{"change":5,"start":466,"end":472},"introduced_by":5},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":5,"pos":472},"to":{"change":3,"start":189758,"end":190022},"introduced_by":3}],"inode":{"change":5,"pos":2}}},"contents":[{"Del":" end\n"},{"Del":" --\n if Current_app == 'run' then\n if run.key_released then run.key_released(chord, key) end\n elseif Current_app == 'source' then\n if source.key_released then source.key_released(chord, key) end\n else\n assert(false, 'unknown app \"'..Current_app..'\"')\n"}]}},{"SolveOrderConflict":{"inode":{"change":5,"pos":2},"path":"main.lua","line":207,"atom":{"NewVertex":{"up_context":[{"change":3,"pos":190028}],"down_context":[{"change":4,"pos":190297}],"flag":"","start":60,"end":60,"inode":{"change":5,"pos":2}}},"contents":[]}},{"Edit":{"inode":{"change":5,"pos":2},"path":"main.lua","line":212,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":4,"pos":190501},"to":{"change":4,"start":190501,"end":190866},"introduced_by":4}],"inode":{"change":5,"pos":2}}},"contents":[{"Del":" else\n assert(false, 'unknown app \"'..Current_app..'\"')\n end\nend\n\nfunction App.mousepressed(x,y, mouse_button)\n--? print('mouse press', x,y)\n if Current_app == 'run' then\n if run.mouse_pressed then run.mouse_pressed(x,y, mouse_button) end\n elseif Current_app == 'source' then\n if source.mouse_pressed then source.mouse_pressed(x,y, mouse_button) end\n"}]}},{"Edit":{"inode":{"change":5,"pos":2},"path":"main.lua","line":223,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":3,"pos":190323},"to":{"change":3,"start":190323,"end":190383},"introduced_by":3},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":5,"pos":361},"to":{"change":4,"start":190933,"end":191200},"introduced_by":4}],"inode":{"change":5,"pos":2}}},"contents":[{"Del":" else\n assert(false, 'unknown app \"'..Current_app..'\"')\n"},{"Del":"function App.mousereleased(x,y, mouse_button)\n if Current_app == 'run' then\n if run.mouse_released then run.mouse_released(x,y, mouse_button) end\n elseif Current_app == 'source' then\n if source.mouse_released then source.mouse_released(x,y, mouse_button) end\n"}]}},{"SolveOrderConflict":{"inode":{"change":5,"pos":2},"path":"main.lua","line":223,"atom":{"NewVertex":{"up_context":[{"change":3,"pos":190323}],"down_context":[{"change":4,"pos":191200}],"flag":"","start":62,"end":62,"inode":{"change":5,"pos":2}}},"contents":[]}},{"Edit":{"inode":{"change":5,"pos":2},"path":"main.lua","line":235,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":5,"pos":102},"to":{"change":4,"start":191261,"end":191472},"introduced_by":4}],"inode":{"change":5,"pos":2}}},"contents":[{"Del":"function love.quit()\n if Current_app == 'run' then\n local source_settings = Settings.source\n Settings = run.settings()\n Settings.source = source_settings\n else\n Settings.source = source.settings()\n"}]}},{"SolveOrderConflict":{"inode":{"change":5,"pos":2},"path":"main.lua","line":235,"atom":{"NewVertex":{"up_context":[{"change":3,"pos":190711}],"down_context":[{"change":5,"pos":235}],"flag":"","start":64,"end":64,"inode":{"change":5,"pos":2}}},"contents":[]}},{"Edit":{"inode":{"change":5,"pos":2},"path":"main.lua","line":245,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":3,"pos":190928},"to":{"change":3,"start":190928,"end":191235},"introduced_by":3}],"inode":{"change":5,"pos":2}}},"contents":[{"Del":" end\n Settings.current_app = Current_app\n love.filesystem.write('config', json.encode(Settings))\n if Current_app == 'run' then\n if run.quit then run.quit() end\n elseif Current_app == 'source' then\n if source.quit then source.quit() end\n else\n assert(false, 'unknown app \"'..Current_app..'\"')\n"}]}},{"SolveOrderConflict":{"inode":{"change":5,"pos":2},"path":"main.lua","line":246,"atom":{"NewVertex":{"up_context":[{"change":3,"pos":191241}],"down_context":[{"change":4,"pos":191473}],"flag":"","start":66,"end":66,"inode":{"change":5,"pos":2}}},"contents":[]}},{"Edit":{"inode":{"change":5,"pos":467},"path":"keychord.lua","line":64,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":5,"pos":228},"to":{"change":4,"start":204149,"end":204263},"introduced_by":4}],"inode":{"change":5,"pos":467}}},"contents":[{"Del":" if type(elem) == 'function' then\n for i,x in ipairs(arr) do\n if elem(x) then\n return i\n end\n"}]}},{"SolveOrderConflict":{"inode":{"change":5,"pos":467},"path":"keychord.lua","line":64,"atom":{"NewVertex":{"up_context":[{"change":3,"pos":203724}],"down_context":[{"change":5,"pos":293}],"flag":"","start":71,"end":71,"inode":{"change":5,"pos":467}}},"contents":[]}},{"Edit":{"inode":{"change":5,"pos":467},"path":"keychord.lua","line":71,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":5,"pos":301},"to":{"change":4,"start":204264,"end":204360},"introduced_by":4}],"inode":{"change":5,"pos":467}}},"contents":[{"Del":" else\n for i,x in ipairs(arr) do\n if x == elem then\n return i\n end\n end\n"}]}},{"SolveOrderConflict":{"inode":{"change":5,"pos":467},"path":"keychord.lua","line":71,"atom":{"NewVertex":{"up_context":[{"change":3,"pos":203821}],"down_context":[{"change":5,"pos":301}],"flag":"","start":73,"end":73,"inode":{"change":5,"pos":467}}},"contents":[]}},{"Edit":{"inode":{"change":5,"pos":2},"path":"app.lua","line":2,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":5,"pos":2},"to":{"change":4,"start":209716,"end":209764},"introduced_by":4}],"inode":{"change":5,"pos":2}}},"contents":[{"Del":"-- love.run: main entrypoint function for LÖVE\n"}]}},{"SolveOrderConflict":{"inode":{"change":5,"pos":2},"path":"app.lua","line":2,"atom":{"NewVertex":{"up_context":[{"change":3,"pos":209220}],"down_context":[{"change":5,"pos":1769}],"flag":"","start":82,"end":82,"inode":{"change":5,"pos":2}}},"contents":[]}},{"Edit":{"inode":{"change":5,"pos":2},"path":"app.lua","line":15,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":5,"pos":54},"to":{"change":4,"start":209765,"end":209787},"introduced_by":4}],"inode":{"change":5,"pos":2}}},"contents":[{"Del":" App.snapshot_love()\n"}]}},{"SolveOrderConflict":{"inode":{"change":5,"pos":2},"path":"app.lua","line":15,"atom":{"NewVertex":{"up_context":[{"change":3,"pos":209243}],"down_context":[{"change":5,"pos":2266}],"flag":"","start":84,"end":84,"inode":{"change":5,"pos":2}}},"contents":[]}},{"Edit":{"inode":{"change":5,"pos":2},"path":"app.lua","line":16,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":5,"pos":2302},"to":{"change":3,"start":209244,"end":209277},"introduced_by":3}],"inode":{"change":5,"pos":2}}},"contents":[{"Del":" App.run_tests_and_initialize()\n"}]}},{"Edit":{"inode":{"change":5,"pos":2},"path":"app.lua","line":143,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":5,"pos":5849},"to":{"change":4,"start":209822,"end":210403},"introduced_by":4}],"inode":{"change":5,"pos":2}}},"contents":[{"Del":"-- save/restore various framework globals we care about -- only on very first load\nfunction App.snapshot_love()\n if Love_snapshot then return end\n Love_snapshot = {}\n -- save the entire initial font; it doesn't seem reliably recreated using newFont\n Love_snapshot.initial_font = love.graphics.getFont()\nend\n\nfunction App.undo_initialize()\n love.graphics.setFont(Love_snapshot.initial_font)\nend\n\nfunction App.run_tests_and_initialize()\n App.load()\n App.run_tests()\n App.disable_tests()\n App.initialize_globals()\n App.initialize(love.arg.parseGameArguments(arg), arg)\nend\n\n"}]}},{"SolveOrderConflict":{"inode":{"change":5,"pos":2},"path":"app.lua","line":143,"atom":{"NewVertex":{"up_context":[{"change":3,"pos":209859}],"down_context":[{"change":5,"pos":5849}],"flag":"","start":86,"end":86,"inode":{"change":5,"pos":2}}},"contents":[]}},{"Edit":{"inode":{"change":5,"pos":6},"path":"README.md","line":33,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":5,"pos":91},"to":{"change":3,"start":209861,"end":209894},"introduced_by":3}],"inode":{"change":5,"pos":6}}},"contents":[{"Del":"* `ctrl+e` to modify the sources\n"}]}},{"ResurrectZombie":{"inode":{"change":5,"pos":6},"path":"README.md","line":33,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK","from":{"change":5,"pos":91},"to":{"change":4,"start":210405,"end":210438},"introduced_by":4},{"previous":"BLOCK | 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text\n\n"}]}},{"SolveOrderConflict":{"inode":{"change":5,"pos":6},"path":"README.md","line":67,"atom":{"NewVertex":{"up_context":[{"change":3,"pos":210004}],"down_context":[{"change":5,"pos":1120}],"flag":"","start":89,"end":89,"inode":{"change":5,"pos":6}}},"contents":[]}},{"SolveOrderConflict":{"inode":{"change":5,"pos":1},"path":"Manual_tests.md","line":8,"atom":{"NewVertex":{"up_context":[{"change":3,"pos":210184}],"down_context":[{"change":4,"pos":210552}],"flag":"","start":94,"end":94,"inode":{"change":5,"pos":1}}},"contents":[]}},{"Edit":{"inode":{"change":5,"pos":1},"path":"Manual_tests.md","line":9,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | 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DELETED","from":{"change":5,"pos":211},"to":{"change":4,"start":210607,"end":211347},"introduced_by":4}],"inode":{"change":5,"pos":1}}},"contents":[{"Del":"Initializing settings:\n - delete app settings, start; window opens running the text editor\n - quit while running the text editor, restart; window opens running the text editor in same position+dimensions\n - quit while editing source (color; no drawings; no selection), restart; window opens editing source in same position+dimensions\n - start out running the text editor, move window, press ctrl+e twice; window is running text editor in same position+dimensions\n - start out editing source, move window, press ctrl+e twice; window is editing source in same position+dimensions\n - no log file; switching to source works\n\nCode loading:\n* run love with directory; text editor runs\n* run love with zip file; text editor runs\n"}]}},{"SolveOrderConflict":{"inode":{"change":5,"pos":1},"path":"Manual_tests.md","line":20,"atom":{"NewVertex":{"up_context":[{"change":3,"pos":210912}],"down_context":[{"change":5,"pos":1460}],"flag":"","start":96,"end":96,"inode":{"change":5,"pos":1}}},"contents":[]}},{"Edit":{"inode":{"change":5,"pos":1},"path":"Manual_tests.md","line":25,"atom":{"EdgeMap":{"edges":[{"previous":"","flag":"DELETED","from":{"change":5,"pos":217},"to":{"change":5,"start":168,"end":169},"introduced_by":5},{"previous":"","flag":"DELETED","from":{"change":5,"pos":1687},"to":{"change":5,"start":168,"end":169},"introduced_by":5},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":5,"pos":168},"to":{"change":5,"start":168,"end":169},"introduced_by":5},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":5,"pos":169},"to":{"change":3,"start":210913,"end":211091},"introduced_by":3}],"inode":{"change":5,"pos":1}}},"contents":[{"Del":"\n"},{"Del":"* 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.\n"}]}},{"SolveOrderConflict":{"inode":{"change":5,"pos":1},"path":"Manual_tests.md","line":26,"atom":{"NewVertex":{"up_context":[{"change":3,"pos":211092}],"down_context":[{"change":4,"pos":211348}],"flag":"","start":98,"end":98,"inode":{"change":5,"pos":1}}},"contents":[]}}],"owner":"akkartik","repo":"wardley.love","token":"21yRuE5Ausx40CtPy1GjvV+/UnhbN5uSY9RYi1IjjXM=","login":null}

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