{"header":{"message":"beginning of a new approach to scroll+wrap","description":"So far I've just changed how existing variables are organized, and put\nsome scaffolding in place for dealing with the new types. Next up:\nrewriting the code for scrolling to something that feels more obviously\ncorrect.","timestamp":"2022-05-21T23:24:07Z","authors":[{"email":"vc@akkartik.com","name":"Kartik K. Agaram"}]},"hash":"2RXZ3PGOTTZ6M4R372JXIKPLBQKPVBMAXNPIEO2HZDN4EMYW4GNAC","authors":[],"deps":{"hashes":[["2RXZ3PGOTTZ6M4R372JXIKPLBQKPVBMAXNPIEO2HZDN4EMYW4GNAC","beginning of a new approach to scroll+wrap"],["AA",null],["O6T3TPXDUSZKH2JHNHWIMSEV3UADIHHF26IYA44X3RCRXNUXEKBQC","bugfix: position cursor up top when loading file"],["2ZYV7D3W2HPQW2HYB7XDPM4T7KEWPUFPZ77BDLCCDSCLRPJFK6PQC","handle tab characters"],["GE56XURAWLO62DQKV4KJBJR4RGN2MVHQME2B44VVTCBYTBPZRP4AC","bugfix: cursor past end of screen line"],["3TFEAQSWVFGSH3ISZ4Q3DFR3YPPWHEIBUEVR3XWB7QX6VKHW455QC","start using some globals"],["PYGMASTVHDTGX3LDTL364UWXEHVSWQ7STAJLZZI5YY6EA6EEICOAC","disable some debug prints"],["Y36LOGR5X6S6AEJJ3EBVDC4I3RRFRCZ6GXPXSEIOMVXY2B7UCCGQC","bugfix: show cursor when past end of line"],["PHQPLJUQZOYZ7B3IDADDANMVXLKIKTU5DRSSEWTSDYCSDKX7M7JAC","rename"],["JCSLDGAH2F6AIY4Z6XM6K4LOMW7EFY3E4NF5YXLMHLTYTX3A4Z3QC","beginnings of support for multiple 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points"],["XX7G2FFJ4QCGQGD4REAW5QFHVYAKCFUPGZCK7L6DFGS5ISVBYBQQC","intermingle freehand line drawings with text"],["JY4VK7L2JKRWRV45QEMGLWPFAQRUWKFHMAL6DWNYEDCKO5Y4W5FQC","rename"],["Y6FTGOHJH2OQTJVB2GQTJNXSZFGI2QWAS3V2NOFM64O5U5RNVKDQC","simpler"],["DXT4QTAH5G6J7ZB3SMOOXVECKWYUPZVE2ODMUFTPPNHLTOSZLQSAC","a few more integer coordinates"],["AVQ5MC5DWNLI6LUUIPGBLGP4LKRPGWBY4THNY25OBT2FAVHC6MCAC","finish uppercasing all globals"],["BULPIBEGL7TMK6CVIE7IS7WGAHGOSUJBGJSFQK542MOWGHP2ADQQC","beginnings of a module for the text editor"],["2C7CTIQYDDYVQJNKX2OSHZ6VMAMPOGNUVTSFAUV7HQCPMZR2YRUAC","make space for multiple kinds of width"],["5L7K4GBDEAFH44LMLNKVFMHLWDNXXBKRPEI347VE5ZLXVFSMD2FAC","clicking to the right of a wrapped line"],["VXORMHME4X64HL6AC7BVYMSYEAYASG6RENGUZ7PEIZ4YQJ7ZHBIQC","delete experimental REPL"],["C42QQZSFFGU6DZ73MCPGYZJQ675YTMEOJAPQLHKRJLWQH5GMWHMQC","another piece of support for line wrapping in cursor up"],["VHQCNMARPMNBSIUFLJG7HVK4QGDNPCGNVFLHS3I4IGNVSV5MRLYQC","several more modules"],["UWNHC4AAO3SPOYLPANTO4WKCTZL7KAYC73Q2YUZFFW7K26FVJ7FQC","redo y computations"],["5ED3YGHW6H7XIXPMHRI5ZJ3VA5UCANZF4AJRSE6V7BLUF67Q6NAAC","planning out cursor up/down over wrapped lines"]],"deps":["O6T3TPXDUSZKH2JHNHWIMSEV3UADIHHF26IYA44X3RCRXNUXEKBQC","2ZYV7D3W2HPQW2HYB7XDPM4T7KEWPUFPZ77BDLCCDSCLRPJFK6PQC","GE56XURAWLO62DQKV4KJBJR4RGN2MVHQME2B44VVTCBYTBPZRP4AC","3TFEAQSWVFGSH3ISZ4Q3DFR3YPPWHEIBUEVR3XWB7QX6VKHW455QC","PYGMASTVHDTGX3LDTL364UWXEHVSWQ7STAJLZZI5YY6EA6EEICOAC"],"known":["OTIBCAUJ3KDQJLVDN3A536DLZGNRYMGJLORZVR3WLCGXGO6UGO6AC","IZZVOCLB7KB4ZNQ35OL466MHWOK3XZMOS7ZPFLHUFQ47LJLQQQ3QC","XX7G2FFJ4QCGQGD4REAW5QFHVYAKCFUPGZCK7L6DFGS5ISVBYBQQC","2C7CTIQYDDYVQJNKX2OSHZ6VMAMPOGNUVTSFAUV7HQCPMZR2YRUAC","JVRL5TWLBTWMTHJDZSDN5XQDMEIIPVAZBKUP75HMO7JHURAYWG5QC","JCSLDGAH2F6AIY4Z6XM6K4LOMW7EFY3E4NF5YXLMHLTYTX3A4Z3QC","FJ4L6N742M55UDNJBV6TMLIVQAMTASCPJBZHEZYLW4XMB3H6BKHQC","W4UVZETRKOSWDPLAM5LGAPCQEJWIVFCXUJDVZQASEIKALYEU34KAC","VXORMHME4X64HL6AC7BVYMSYEAYASG6RENGUZ7PEIZ4YQJ7ZHBIQC","5T2E3PDVSLMZSSIIQRNKIKQVV77XQTHP473OP7XBTTMSZHIQID5AC","IYW7X3WLOPYLSNO5IQNSULUNO4XFEM24DJ2VB5HPBUKWUYFPRCGQC","BJ5X5O4ACBBJ56LRBBSTCW6IBQP4HAEOOOPNH3SKTA4F66YTOIDAC","MGOQ5XAVFTWZPBG2O5ZTGSEKU6BRJKQZLDV6CM4737VD2FAEB5JQC","AVQ5MC5DWNLI6LUUIPGBLGP4LKRPGWBY4THNY25OBT2FAVHC6MCAC","7IKRRESBHMYHHKW4XHUEEKHKPOBLAGZ7A7FJMRU32MTRKIV6S7GQC","BULPIBEGL7TMK6CVIE7IS7WGAHGOSUJBGJSFQK542MOWGHP2ADQQC","VHQCNMARPMNBSIUFLJG7HVK4QGDNPCGNVFLHS3I4IGNVSV5MRLYQC","XNFTJHC4QSHNSIWNN7K6QZEZ37GTQYKHS4EPNSVPQCUSWREROGIQC","HYEAFRZ2UEKDYTAE2GDQLHEJBPQASP2NDLMXB7F6MTVK2BKOXKEAC","252M2QMDBMNWHBZY5MDSC7WVYO5JBLJYPVMW5W4IVJCZVYRQ5IQQC","DLQMM2656JHXX3ONOEM6UIOXKFJFT5QT7RHWK7YS2W77PVZWHRSAC","242L3OQXTU2TCAINRJXQEEDSXQXM7Y7USUPBK37ZNM3A7V5TUDSAC","WKTPVZKLSCGCFZ3CJC65A2SBGBLOM7CU3T743VR3W5LMAGEREFZAC","B3IWYWSRDSZ7AG5HDS3TELNTG2IKRZYPI25B6LJGVFAJYTHVXZZAC","Y6FTGOHJH2OQTJVB2GQTJNXSZFGI2QWAS3V2NOFM64O5U5RNVKDQC","UWNHC4AAO3SPOYLPANTO4WKCTZL7KAYC73Q2YUZFFW7K26FVJ7FQC","HIH47LNBDXHB2PU2HPPG47IBX5QKJXB74G2SZ5B3ZUYYPTYR3TYAC","DXT4QTAH5G6J7ZB3SMOOXVECKWYUPZVE2ODMUFTPPNHLTOSZLQSAC","H2DPLWMVRFYTO2CQTG54FMT2LF3B6UKLXH32CUA22DNQJVP5XBNQC","DAENUOGV7KR6MZVXS36HEN3SZC4RFIS6REGAFVBOFEPO76EUDGIAC","RCDVDFJQIHP3F3EGJLBPPMDKD6RR33AO3W3QZ2V5EZNFBDOW6XMQC","PHQPLJUQZOYZ7B3IDADDANMVXLKIKTU5DRSSEWTSDYCSDKX7M7JAC","BOFNXP5GZDCUMQG3LQVTSSFEQP7REQ4RIRJLDLETFSAGFTVDVEKAC","5L7K4GBDEAFH44LMLNKVFMHLWDNXXBKRPEI347VE5ZLXVFSMD2FAC","XVR2O5PIN4KDGEIFAXR2A54Q2GDYJHXUIHRFI74UU736M4R4CLVQC","Y36LOGR5X6S6AEJJ3EBVDC4I3RRFRCZ6GXPXSEIOMVXY2B7UCCGQC","5ED3YGHW6H7XIXPMHRI5ZJ3VA5UCANZF4AJRSE6V7BLUF67Q6NAAC","5DOC2CBMBDMAOJ7IKLDGVRCY4SNPCJTTF7DK7WGNLPGNV4AWVJNAC","OIB2QPRCB4MAVZV5NCEKSAL45ITT6V4BYSET3Q2VCT3WBOIC4QVQC","EWMPYCDOO47WYLJKLAQYWAAEH4WNKADGJGGXDDEVE42P3H6WBPDAC","A2QPFRFJNWDHBYRRLJFBK5BOTOWXDT5DYCKHRRKVBZNDA4NE3CHQC","WLHI7KD3LJTQH6V7RLVJWGZUR4YQK6LN4OIUMIN45BGMMQGN6RNQC","MGT5FTJ35MGYCQO3TZVK3RYUIN5YX475R4XG7RO42SYLYF4AIKFAC","C42QQZSFFGU6DZ73MCPGYZJQ675YTMEOJAPQLHKRJLWQH5GMWHMQC","SVJZZDC3K6AKAXHGRNAZKRE2ZXEKJANNLG7LSSUZJARFBL5F7C4AC","537TQ2QNPKPG322I4OIMN5IY22S45Z42LEBBZ2IN5MVM355BEJTAC","3CSIZJ33MAZTTJUJX7H2VDJRGZ3A5AWKVSAQIMV3UQACVWNZA6ZAC","HBZ2UCUFM6EYLFZGUQVJDCLANO4UXYMBOU3TFPB2JASJMB53ZGXAC","PR4KIAZDOBQMEUOV2G7ZEZUW3E4L5ZCHYSS7PTYWGXPSNVRAGHCAC","KJKKASHZCC5JD6G6PWQ4TA42NVI2CNTAZ667GA76H272DD6KCNRQC","JY4VK7L2JKRWRV45QEMGLWPFAQRUWKFHMAL6DWNYEDCKO5Y4W5FQC","2POFQQLW42ZQCF7NBTIFLYKXBYT5PVSC3T5UOURIEPYNFVBN2MKAC","TRNWIQN6RPLDLYWULLKG5L255E7E3DPNGLCSLAF6IJWYQRCCLARQC","BYG5CEMVXANDTBI2ORNVMEY6K3EBRIHZHS4QBK27VONJC5537COQC"]},"hunks":[{"Replacement":{"inode":{"change":7,"pos":1},"path":"text.lua","line":25,"ins":{"up_context":[{"change":7,"pos":2151}],"down_context":[{"change":7,"pos":83}],"flag":"BLOCK","start":1,"end":70,"inode":{"change":7,"pos":1}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":7,"pos":2151},"to":{"change":7,"start":1,"end":82},"introduced_by":7}],"inode":{"change":7,"pos":1}},"ins_contents":[{"Add":" if line_index > Screen_top1.line or pos > Screen_top1.pos then"}],"del_contents":[{"Del":" if line_index > Screen_top_line or pos > Top_screen_line_starting_pos then\n"}]}},{"Replacement":{"inode":{"change":7,"pos":1},"path":"text.lua","line":36,"ins":{"up_context":[{"change":7,"pos":2206}],"down_context":[{"change":7,"pos":223}],"flag":"BLOCK","start":71,"end":220,"inode":{"change":7,"pos":1}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":7,"pos":2206},"to":{"change":7,"start":128,"end":222},"introduced_by":7},{"previous":"","flag":"DELETED","from":{"change":7,"pos":199},"to":{"change":7,"start":130,"end":210},"introduced_by":7},{"previous":"","flag":"DELETED","from":{"change":7,"pos":222},"to":{"change":7,"start":130,"end":210},"introduced_by":7},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":7,"pos":2206},"to":{"change":7,"start":130,"end":210},"introduced_by":7}],"inode":{"change":7,"pos":1}},"ins_contents":[{"Add":" if Debug_new_render then print('checking to draw', pos, Screen_top1.pos) end"},{"Add":" if line_index > Screen_top1.line or pos >= Screen_top1.pos then"}],"del_contents":[{"Del":" if Debug_new_render then print('checking to draw', pos, Top_screen_line_starting_pos) end\n"},{"Del":" if line_index > Screen_top_line or pos >= Top_screen_line_starting_pos then\n"}]}},{"Replacement":{"inode":{"change":7,"pos":1},"path":"text.lua","line":43,"ins":{"up_context":[{"change":7,"pos":2324}],"down_context":[{"change":7,"pos":2594}],"flag":"BLOCK","start":221,"end":397,"inode":{"change":7,"pos":1}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":7,"pos":2324},"to":{"change":5,"start":51,"end":223},"introduced_by":5}],"inode":{"change":7,"pos":1}},"ins_contents":[{"Add":" if line_index == Cursor1.line then"},{"Add":" if pos <= Cursor1.pos and pos + frag_len > Cursor1.pos then"},{"Add":" Text.draw_cursor(x+Text.cursor_x2(frag, Cursor1.pos-pos+1), y)"}],"del_contents":[{"Del":" if line_index == Cursor_line then\n if pos <= Cursor_pos and pos + frag_len > Cursor_pos then\n Text.draw_cursor(x+Text.cursor_x2(frag, Cursor_pos-pos+1), y)\n"}]}},{"Replacement":{"inode":{"change":7,"pos":1},"path":"text.lua","line":51,"ins":{"up_context":[{"change":7,"pos":37}],"down_context":[{"change":7,"pos":72}],"flag":"BLOCK","start":398,"end":458,"inode":{"change":7,"pos":1}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":7,"pos":37},"to":{"change":5,"start":224,"end":282},"introduced_by":5}],"inode":{"change":7,"pos":1}},"ins_contents":[{"Add":" if line_index == Cursor1.line and Cursor1.pos == pos then"}],"del_contents":[{"Del":" if line_index == Cursor_line and Cursor_pos == pos then\n"}]}},{"Replacement":{"inode":{"change":7,"pos":1},"path":"text.lua","line":112,"ins":{"up_context":[{"change":7,"pos":191}],"down_context":[{"change":7,"pos":285}],"flag":"BLOCK","start":459,"end":556,"inode":{"change":7,"pos":1}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":7,"pos":191},"to":{"change":7,"start":191,"end":285},"introduced_by":7}],"inode":{"change":7,"pos":1}},"ins_contents":[{"Add":" if Cursor1.pos > 1 then"},{"Add":" byte_offset = utf8.offset(Lines[Cursor1.line].data, Cursor1.pos-1)"}],"del_contents":[{"Del":" if Cursor_pos > 1 then\n byte_offset = utf8.offset(Lines[Cursor_line].data, Cursor_pos-1)\n"}]}},{"Replacement":{"inode":{"change":7,"pos":1},"path":"text.lua","line":117,"ins":{"up_context":[{"change":7,"pos":318}],"down_context":[{"change":7,"pos":513}],"flag":"BLOCK","start":557,"end":763,"inode":{"change":7,"pos":1}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | 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= Cursor_pos+1\n"}]}},{"Replacement":{"inode":{"change":7,"pos":1},"path":"text.lua","line":126,"ins":{"up_context":[{"change":7,"pos":655}],"down_context":[{"change":3,"pos":100}],"flag":"BLOCK","start":764,"end":1130,"inode":{"change":7,"pos":1}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":7,"pos":655},"to":{"change":7,"start":655,"end":921},"introduced_by":7},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":7,"pos":921},"to":{"change":7,"start":2835,"end":2874},"introduced_by":7},{"previous":"","flag":"DELETED","from":{"change":7,"pos":2874},"to":{"change":7,"start":921,"end":972},"introduced_by":7},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":7,"pos":921},"to":{"change":7,"start":921,"end":972},"introduced_by":7}],"inode":{"change":7,"pos":1}},"ins_contents":[{"Add":" local byte_offset = utf8.offset(Lines[Cursor1.line].data, Cursor1.pos)"},{"Add":" table.insert(Lines, Cursor1.line+1, {mode='text', 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screen_line_starting_pos"},{"Add":"--? print('pos of top of screen is also '..tostring(Screen_top1.pos)..' of the same line')"}],"del_contents":[{"Del":" if Screen_top_line == Cursor_line and Top_screen_line_starting_pos == screen_line_starting_pos then\n Top_screen_line_starting_pos = screen_line_starting_pos\n"},{"Del":"--? print('pos of top of screen is also '..tostring(Top_screen_line_starting_pos)..' of the same line')\n"}]}},{"Replacement":{"inode":{"change":7,"pos":1},"path":"text.lua","line":250,"ins":{"up_context":[{"change":7,"pos":494}],"down_context":[{"change":7,"pos":556}],"flag":"BLOCK","start":4334,"end":4509,"inode":{"change":7,"pos":1}},"del":{"edges":[{"previous":"","flag":"DELETED","from":{"change":7,"pos":494},"to":{"change":7,"start":425,"end":507},"introduced_by":7},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":7,"pos":425},"to":{"change":7,"start":425,"end":507},"introduced_by":7},{"previous":"BLOCK","flag":"BLOCK | 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then"},{"Add":" Screen_top1.line = Cursor1.line"}],"del_contents":[{"Del":" if Cursor_line < Screen_top_line then\n Screen_top_line = Cursor_line\n"}]}},{"Replacement":{"inode":{"change":7,"pos":1},"path":"text.lua","line":262,"ins":{"up_context":[{"change":7,"pos":896}],"down_context":[{"change":6,"pos":423}],"flag":"BLOCK","start":4597,"end":4700,"inode":{"change":7,"pos":1}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":7,"pos":896},"to":{"change":7,"start":558,"end":660},"introduced_by":7}],"inode":{"change":7,"pos":1}},"ins_contents":[{"Add":" new_screen_line_starting_pos = Lines[Cursor1.line].screen_line_starting_pos[screen_line_index-1]"}],"del_contents":[{"Del":" new_screen_line_starting_pos = Lines[Cursor_line].screen_line_starting_pos[screen_line_index-1]\n"}]}},{"Replacement":{"inode":{"change":7,"pos":1},"path":"text.lua","line":264,"ins":{"up_context":[{"change":6,"pos":571}],"down_context":[{"change":7,"pos":1073}],"flag":"BLOCK","start":4701,"end":4937,"inode":{"change":7,"pos":1}},"del":{"edges":[{"previous":"","flag":"DELETED","from":{"change":6,"pos":571},"to":{"change":7,"start":804,"end":978},"introduced_by":6},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":7,"pos":804},"to":{"change":7,"start":804,"end":978},"introduced_by":7},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":7,"pos":978},"to":{"change":6,"start":572,"end":671},"introduced_by":6}],"inode":{"change":7,"pos":1}},"ins_contents":[{"Add":" if Screen_top1.line == Cursor1.line and Screen_top1.pos == screen_line_starting_pos then"},{"Add":" Screen_top1.pos = new_screen_line_starting_pos"},{"Add":"--? print('also setting pos of top of screen to '..tostring(Screen_top1.pos))"}],"del_contents":[{"Del":" if Screen_top_line == Cursor_line and Top_screen_line_starting_pos == screen_line_starting_pos then\n Top_screen_line_starting_pos = new_screen_line_starting_pos\n"},{"Del":"--? print('also setting pos of top of screen to '..tostring(Top_screen_line_starting_pos))\n"}]}},{"Replacement":{"inode":{"change":7,"pos":1},"path":"text.lua","line":268,"ins":{"up_context":[{"change":7,"pos":1083}],"down_context":[{"change":7,"pos":268}],"flag":"BLOCK","start":4938,"end":5174,"inode":{"change":7,"pos":1}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":7,"pos":1083},"to":{"change":7,"start":1083,"end":1256},"introduced_by":7},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":7,"pos":1256},"to":{"change":6,"start":672,"end":732},"introduced_by":6}],"inode":{"change":7,"pos":1}},"ins_contents":[{"Add":" local s = string.sub(Lines[Cursor1.line].data, new_screen_line_starting_pos)"},{"Add":" Cursor1.pos = new_screen_line_starting_pos + Text.nearest_cursor_pos(s, Cursor_x) - 1"},{"Add":"--? print('cursor pos is now '..tostring(Cursor1.pos))"}],"del_contents":[{"Del":" local s = string.sub(Lines[Cursor_line].data, new_screen_line_starting_pos)\n Cursor_pos = new_screen_line_starting_pos + Text.nearest_cursor_pos(s, Cursor_x) - 1\n"},{"Del":"--? print('cursor pos is now '..tostring(Cursor_pos))\n"}]}},{"Replacement":{"inode":{"change":7,"pos":1},"path":"text.lua","line":273,"ins":{"up_context":[{"change":7,"pos":4463}],"down_context":[{"change":7,"pos":267}],"flag":"BLOCK","start":5175,"end":5222,"inode":{"change":7,"pos":1}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":7,"pos":4463},"to":{"change":7,"start":4463,"end":4509},"introduced_by":7}],"inode":{"change":7,"pos":1}},"ins_contents":[{"Add":" assert(Lines[Cursor1.line].mode == 'text')"}],"del_contents":[{"Del":" assert(Lines[Cursor_line].mode == 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Lines[Cursor_line].screen_line_starting_pos[screen_line_index+1]\n"}]}},{"Replacement":{"inode":{"change":7,"pos":1},"path":"text.lua","line":302,"ins":{"up_context":[{"change":6,"pos":1402}],"down_context":[{"change":6,"pos":1464}],"flag":"BLOCK","start":5905,"end":6179,"inode":{"change":7,"pos":1}},"del":{"edges":[{"previous":"","flag":"DELETED","from":{"change":6,"pos":1402},"to":{"change":7,"start":1391,"end":1564},"introduced_by":6},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":7,"pos":1391},"to":{"change":7,"start":1391,"end":1564},"introduced_by":7},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":7,"pos":1564},"to":{"change":6,"start":1403,"end":1463},"introduced_by":6},{"previous":"","flag":"DELETED","from":{"change":6,"pos":1463},"to":{"change":7,"start":122,"end":158},"introduced_by":6},{"previous":"BLOCK","flag":"BLOCK | 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Cursor_line\n"}]}},{"Replacement":{"inode":{"change":7,"pos":1},"path":"text.lua","line":308,"ins":{"up_context":[{"change":7,"pos":1666}],"down_context":[{"change":7,"pos":1313}],"flag":"BLOCK","start":6180,"end":6252,"inode":{"change":7,"pos":1}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":7,"pos":1666},"to":{"change":6,"start":1512,"end":1596},"introduced_by":6}],"inode":{"change":7,"pos":1}},"ins_contents":[{"Add":"--? print('screen top after:', Screen_top1.line, Screen_top1.pos)"}],"del_contents":[{"Del":"--? print('screen top after:', Screen_top_line, Top_screen_line_starting_pos)\n"}]}},{"Replacement":{"inode":{"change":7,"pos":1},"path":"text.lua","line":314,"ins":{"up_context":[{"change":7,"pos":1383}],"down_context":[{"change":7,"pos":1444}],"flag":"BLOCK","start":6253,"end":6315,"inode":{"change":7,"pos":1}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | 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i=#Lines[Cursor_line].screen_line_starting_pos,1,-1 do\n local spos = Lines[Cursor_line].screen_line_starting_pos[i]\n if spos <= Cursor_pos then\n"}]}},{"Replacement":{"inode":{"change":7,"pos":1},"path":"text.lua","line":327,"ins":{"up_context":[{"change":7,"pos":1711}],"down_context":[{"change":7,"pos":1772}],"flag":"BLOCK","start":6476,"end":6538,"inode":{"change":7,"pos":1}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":7,"pos":1711},"to":{"change":7,"start":1711,"end":1772},"introduced_by":7}],"inode":{"change":7,"pos":1}},"ins_contents":[{"Add":" if Lines[Cursor1.line].screen_line_starting_pos == nil then"}],"del_contents":[{"Del":" if Lines[Cursor_line].screen_line_starting_pos == nil 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