We're patching line_cache and then immediately clearing it using Text.redraw_all.
HPP3MEH2VINRT7LAF7QIIDVA76GBO4CN3R5UIF2P4M3RH3DOBL5QC G3DLS5OUO77V4MC6754KTETRCTVUBYBHMGR7MTV52IYYM7QA3ROQC VJ77YABHVJZWJKLHAGIPC562GYM73AUGRLCP4JLKP5JPWPT2RIHAC ILOA5BYFTQKBSHLFMMZUVPQ2JXBFJD62ERQFBTDK2WSRXUN525VQC 73OCE2MCBJJZZMN2KYPJTBOUCKBZAOQ2QIAMTGCNOOJ2AJAXFT2AC KKMFQDR43ZWVCDRHQLWWX3FCWCFA3ZSXYOBRJNPHUQZR2XPKWULAC LNUHQOGHIOFGJXNGA3DZLYEASLYYDGLN2I3EDZY5ANASQAHCG3YQC TGHAJBESCIEGWUE2D3FGLNOIAYT4D2IRGZKRXRMTUFW7QZETC7OAC 2L5MEZV344TOZLVY3432RHJFIRVXFD6O3GWLL5O4CV66BGAFTURQC function patch_placeholders(line_cache, from, to)assert(from.start_line == to.start_line, 'failed to patch undo operation')for i=from.end_line,from.start_line,-1 dotable.remove(line_cache, i)endassert(#to.lines == to.end_line-to.start_line+1, 'failed to patch undo operation')for i=1,#to.lines dotable.insert(line_cache, to.start_line+i-1, {})endend
function patch_placeholders(line_cache, from, to)assert(from.start_line == to.start_line, 'failed to patch undo operation')for i=from.end_line,from.start_line,-1 dotable.remove(line_cache, i)endassert(#to.lines == to.end_line-to.start_line+1, 'failed to patch undo operation')for i=1,#to.lines dotable.insert(line_cache, to.start_line+i-1, {})endend