patch 9.0.1747: screenpos() may cause unnecessary redraw Commit: https://github.com/vim/vim/commit/6235a109c48ff2559eca3b16578c429ffb61eadc Author: zeertzjq <zeertzjq@outlook.com> Date: Sat Aug 19 14:12:42 2023 +0200 patch 9.0.1747: screenpos() may cause unnecessary redraw Problem: screenpos() may cause unnecessary redraw. Solution: Don't unnecessarily reset VALID_WROW flag. VALID_WROW flag is only used by two functions: validate_cursor() and cursor_valid(), and cursor_valid() is only used once in ex_sleep(). When adjust_plines_for_skipcol() was first added in patch 9.0.0640, it was called in two functions: comp_botline() and curs_rows(). - comp_botline() is called in two places: - onepage(), which resets VALID_WROW flag immediately afterwards. - validate_botline_win(), where resetting a VALID_ flag is strange. - curs_rows() is called in two places: - curs_columns(), which sets VALID_WROW flag afterwards. - validate_cline_row(), which is only used by GUI mouse focus. Therefore resetting VALID_WROW there doesn't seem to do anything useful. Also, a w_skipcol check (which resets VALID_WROW flag) was added to check_cursor_moved() in patch 9.0.0734, which seems to make more sense than resetting that flag in the middle of a computation. While at it make adjust_plines_for_skipcol() and textpos2screenpos() a bit less confusing: - Make adjust_plines_for_skipcol() return "off" instead of "n - off". - Use 0-based "row" in textpos2screenpos() until W_WINROW is added. closes: #12832 Signed-off-by: Christian Brabandt <cb@256bit.org> Co-authored-by: zeertzjq <zeertzjq@outlook.com>

" Vim syntax file
" Language: Zir
" Upstream: https://github.com/ziglang/zig.vim

if exists("b:current_syntax")
  finish
endif
let b:current_syntax = "zir"

syn region zirCommentLine start=";" end="$" contains=zirTodo,@Spell

syn region zirBlock start="{" end="}" transparent fold

syn keyword zirKeyword primitive fntype int str as ptrtoint fieldptr deref asm unreachable export ref fn

syn keyword zirTodo contained TODO

syn region zirString start=+c\?"+ skip=+\\\\\|\\"+ end=+"+ oneline contains=zirEscape,zirEscapeUnicode,zirEscapeError,@Spell

syn match zirEscapeError   display contained /\\./
syn match zirEscape        display contained /\\\([nrt\\'"]\|x\x\{2}\)/
syn match zirEscapeUnicode display contained /\\\(u\x\{4}\|U\x\{6}\)/

syn match zirDecNumber display "\<[0-9]\+\%(.[0-9]\+\)\=\%([eE][+-]\?[0-9]\+\)\="
syn match zirHexNumber display "\<0x[a-fA-F0-9]\+\%([a-fA-F0-9]\+\%([pP][+-]\?[0-9]\+\)\?\)\="
syn match zirOctNumber display "\<0o[0-7]\+"
syn match zirBinNumber display "\<0b[01]\+\%(.[01]\+\%([eE][+-]\?[0-9]\+\)\?\)\="

syn match zirGlobal display "[^a-zA-Z0-9_]\?\zs@[a-zA-Z0-9_]\+"
syn match zirLocal  display "[^a-zA-Z0-9_]\?\zs%[a-zA-Z0-9_]\+"

hi def link zirCommentLine Comment
hi def link zirTodo Todo

hi def link zirKeyword Keyword

hi def link zirString Constant

hi def link zirEscape Special
hi def link zirEscapeUnicode zirEscape
hi def link zirEscapeError Error

hi def link zirDecNumber Constant
hi def link zirHexNumber Constant
hi def link zirOctNumber Constant
hi def link zirBinNumber Constant

hi def link zirGlobal Identifier
hi def link zirLocal  Identifier