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:	Dylan
" Authors:	Justus Pendleton <justus@acm.org>
" Last Change:	Fri Sep 29 13:53:27 PDT 2000
"

" quit when a syntax file was already loaded
if exists("b:current_syntax")
  finish
endif

syn case ignore

syn region	dylanintrInfo		matchgroup=Statement start="^" end=":" oneline
syn match	dylanintrInterface	"define interface"
syn match	dylanintrClass		"<.*>"
syn region	dylanintrType		start=+"+ skip=+\\\\\|\\"+ end=+"+

syn region	dylanintrIncluded	contained start=+"+ skip=+\\\\\|\\"+ end=+"+
syn match	dylanintrIncluded	contained "<[^>]*>"
syn match	dylanintrInclude	"^\s*#\s*include\>\s*["<]" contains=intrIncluded

"syn keyword intrMods pointer struct

" Define the default highlighting.
" Only when an item doesn't have highlighting yet

hi def link dylanintrInfo		Special
hi def link dylanintrInterface	Operator
hi def link dylanintrMods		Type
hi def link dylanintrClass		StorageClass
hi def link dylanintrType		Type
hi def link dylanintrIncluded	String
hi def link dylanintrInclude	Include


let b:current_syntax = "dylanintr"

" vim:ts=8