X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/291fa48a67c77ced79a33db8fe9d71dfe04004ac..d57a363718a4469233b543f359b072831c467476:/ftplugin/mkd.vim diff --git a/ftplugin/mkd.vim b/ftplugin/mkd.vim index 0f5d82d..d390c3b 100644 --- a/ftplugin/mkd.vim +++ b/ftplugin/mkd.vim @@ -1,166 +1,211 @@ -"TODO get working on visual mode +"TODO print messages when on visual mode. I only see VISUAL, not the messages. -"- if inside a header -" goes to the nearest head before current position -" returns its initial hashes (#) -"- else -" goes to beginning of document -" returns '' -fu! b:Markdown_GoCurHeader() - if search( '^#', 'bcW' ) != 0 - return matchstr( getline('.'), '\v^#+' ) - el - norm! gg - ec 'outside any header' - return '' - en -endf - -"same as `b:Markdown_GoCurHeader`:function: but does not change cursor position -fu! b:Markdown_GetHashesCurHeader() - let line = search( '\v^#', 'nW' ) != 0 - retu matchstr( getline(line) '\v^#+' ) -endf - -"goes to next header of any level -"returns its hashes -fu! b:Markdown_GoNextHeader() - if search( '\v^#', 'W' ) != 0 - return matchstr( getline('.'), '\v^#+' ) - el - "norm! G - ec 'no more headers' - return '' - en -endf +" This is how you should view things: +" +" |BUFFER +" | +" |Outside any header +" | +" a-+# a +" | +" |Inside a +" | +" a-+ +" b-+## b +" | +" |inside b +" | +" b-+ +" c-+### c +" | +" |Inside c +" | +" c-+ +" d-|# d +" | +" |Inside d +" | +" d-+ + +let s:headerExpr = '\v^(\s*#|.+\n(\=+|-+)$)' + +" Return 0 if not found, else the actual line number. +" +function! b:Markdown_GetLineNumCurHeader() + echo s:headerExpr + return search(s:headerExpr, 'bcnW') +endfunction -"goes to previous header of any level +" - if inside a header goes to it. +" Return its line number. +" +" - if on top level outside any headers, +" print a warning +" Return `0`. +" +function! b:Markdown_GoCurHeader() + let l:lineNum = b:Markdown_GetLineNumCurHeader() + if l:lineNum != 0 + call cursor(l:lineNum, 1) + else + echo 'error: outside any header' + "normal! gg + end + return l:lineNum +endfunction + +" Put cursor on next header of any level. +" +" If there are no more headers, print a warning. +" +function! b:Markdown_GoNextHeader() + if search(s:headerExpr, 'W') == 0 + "normal! G + echo 'error: no next header' + end +endfunction + +" Put cursor on previous header (before current) of any level. +" +" If it does not exist, print a warning. " -"if there is no previous header, only print a warning +function! b:Markdown_GoPreviousHeader() + let l:oldPos = getpos('.') + let l:curHeaderLineNumber = b:Markdown_GoCurHeader() + if l:curHeaderLineNumber == 0 + call setpos('.', l:oldPos) + end + if search(s:headerExpr, 'bW') == 0 + "normal! gg + call setpos('.', l:oldPos) + echo 'error: no previous header' + end +endfunction + +"- if inside a header, cursor goes to it. +" Return its hashes. " -"if the cursor is not exactly at the header, -"it goes to exactly the header. So this could be used -"if you want to go to the current header line. -fu! b:Markdown_GoPreviousHeader() - if search( '^#', 'bW' ) != 0 - return matchstr( getline('.'), '\v^#+' ) - el - "norm! gg - ec 'no more headers' +"- if on top level outside any headers, +" print a warning +" return '' +" +function! b:Markdown_GoCurHeaderGetHashes() + let l:linenum = b:Markdown_GetLineNumCurHeader() + if l:linenum != 0 + call cursor(l:linenum, 1) + return matchlist(getline(linenum), '\v^\s*(#+)')[1] + else return '' - en -endf - -"if already at top level, go to beginning of buffer -fu! b:Markdown_GoHeaderUp() - let l:hashes = b:Markdown_GoCurHeader() - if len( l:hashes ) > 1 - cal search( '^' . l:hashes[1:] . '[^#]', 'b' ) - el - norm! gg - en -endf - -fu! b:Markdown_GoNextHeaderSameLevel() - - let l:hashes = b:Markdown_GoCurHeader() - - "go to next occurrence of that number of hashes - cal search( '^' . l:hashes . '[^#]', 'W' ) - -endf - -"if no more next siblings, print error message and do nothing. -fu! b:Markdown_GoNextSiblingHeader() - - let l:hashes = b:Markdown_GoCurHeader() + end +endfunction +" Put cursor on previous header of any level. +" +" If it exists, return its lines number. +" +" Otherwise, print a warning and return `0`. +" +function! b:Markdown_GoHeaderUp() + let l:oldPos = getpos('.') + let l:hashes = b:Markdown_GoCurHeaderGetHashes() + if len(l:hashes) > 1 + call search('^\s*' . l:hashes[1:] . '[^#]', 'b') + else + call setpos('.', l:oldPos) + echo 'error: already at top level' + end +endfunction + +" If no more next siblings, print error message and do nothing. +" +function! b:Markdown_GoNextSiblingHeader() + let l:oldPos = getpos('.') + let l:hashes = b:Markdown_GoCurHeaderGetHashes() + let l:noSibling = 0 if l:hashes ==# '' - retu - en - - let l:nhashes = len(l:hashes) - if l:nhashes == 1 - "special case, just add the largest possible value - let l:nextLowerLevelLine = line('$') + 1 - el - let l:nextLowerLevelLine = search( '\v^#{1,' . ( l:nhashes - 1 ) . '}[^#]' , 'nW' ) - en - - let l:nextSameLevelLine = search( '\v^' . l:hashes . '[^#]', 'nW' ) - - if ( - \ l:nextSameLevelLine > 0 - \ && - \ ( - \ l:nextLowerLevelLine == 0 - \ || - \ l:nextLowerLevelLine > l:nextSameLevelLine + let l:noSibling = 1 + else + let l:nhashes = len(l:hashes) + if l:nhashes == 1 + "special case, just add the largest possible value + let l:nextLowerLevelLine = line('$') + 1 + else + let l:nextLowerLevelLine = search('\v^\s*#{1,' . (l:nhashes - 1) . '}[^#]' , 'nW') + end + let l:nextSameLevelLine = search('\v^\s*' . l:hashes . '[^#]', 'nW') + if ( + \ l:nextSameLevelLine > 0 + \ && + \ ( + \ l:nextLowerLevelLine == 0 + \ || + \ l:nextLowerLevelLine > l:nextSameLevelLine + \ ) \ ) - \ ) - cal cursor( l:nextSameLevelLine, 0 ) - el - ec 'no more siblings' - en - -endf - -fu! b:Markdown_GoPreviousHeaderSameLevel() - - let l:hashes = b:Markdown_GoCurHeader() - - "go to next occurrence of that number of hashes - cal search( '^' . l:hashes . '[^#]', 'bW' ) - -endf + call cursor(l:nextSameLevelLine, 1) + else + let l:noSibling = 1 + end + end + if l:noSibling + call setpos('.', l:oldPos) + echo 'error: no next sibling' + end +endfunction "if no more next siblings, print error message and do nothing. -fu! b:Markdown_GoPreviousSiblingHeader() - - let l:hashes = b:Markdown_GoCurHeader() - +function! b:Markdown_GoPreviousSiblingHeader() + let l:oldPos = getpos('.') + let l:hashes = b:Markdown_GoCurHeaderGetHashes() + let l:noSibling = 0 if l:hashes ==# '' - retu - en - - let l:nhashes = len(l:hashes) - if l:nhashes == 1 - "special case, just add the largest possible value - let l:prevLowerLevelLine = -1 - el - let l:prevLowerLevelLine = search( '\v^#{1,' . ( l:nhashes - 1 ) . '}[^#]' , 'bnW' ) - en - - let l:prevSameLevelLine = search( '\v^' . l:hashes . '[^#]', 'bnW' ) - - if ( - \ l:prevSameLevelLine > 0 - \ && - \ ( - \ l:prevLowerLevelLine == 0 - \ || - \ l:prevLowerLevelLine < l:prevSameLevelLine - \ ) - \ ) - cal cursor( l:prevSameLevelLine, 0 ) - el - ec 'no more siblings' - en - -endf - -"mnemonics: ']' next (like a right arrow) -nn ]] :cal b:Markdown_GoNextHeader() -"vnoremap ]] /^#:nohlgv - -"mnemonics: '[' next (like a left arrow) -nn ][ :cal b:Markdown_GoNextSiblingHeader() -"vnoremap ][ :cal b:Markdown_GoNextHeaderSameLevel() - -nn [] :cal b:Markdown_GoPreviousSiblingHeader() - -nn [[ :cal b:Markdown_GoPreviousHeader() -"vnoremap [[ ?^#:nohlgv - -"go up one level. Menmonic: Up. -nn ]u :cal b:Markdown_GoHeaderUp() + let l:noSibling = 1 + else + let l:nhashes = len(l:hashes) + if l:nhashes == 1 + "special case, just add the largest possible value + let l:prevLowerLevelLine = -1 + else + let l:prevLowerLevelLine = search('\v^\s*#{1,' . (l:nhashes - 1) . '}[^#]' , 'bnW') + end + let l:prevSameLevelLine = search('\v^\s*' . l:hashes . '[^#]', 'bnW') + if ( + \ l:prevSameLevelLine > 0 + \ && + \ ( + \ l:prevLowerLevelLine == 0 + \ || + \ l:prevLowerLevelLine < l:prevSameLevelLine + \ ) + \) + call cursor(l:prevSameLevelLine, 1) + else + let l:noSibling = 1 + end + end + if l:noSibling + call setpos('.', l:oldPos) + echo 'error: no previous sibling' + end +endfunction + +"wrapper to do move commands in visual mode +function! s:VisMove(f) + norm! gv + call function(a:f)() +endfunction + +"map in both normal and visual modes +function! s:MapNormVis(rhs,lhs) + execute 'nn ' . a:rhs . ' :call ' . a:lhs . '()' + execute 'vn ' . a:rhs . ' :call VisMove(''' . a:lhs . ''')' +endfunction + +call MapNormVis(']]', 'b:Markdown_GoNextHeader') +call MapNormVis('[[', 'b:Markdown_GoPreviousHeader') +call MapNormVis('][', 'b:Markdown_GoNextSiblingHeader') +call MapNormVis('[]', 'b:Markdown_GoPreviousSiblingHeader') +"menmonic: Up +call MapNormVis(']u', 'b:Markdown_GoHeaderUp') +"menmonic: Current +call MapNormVis(']c', 'b:Markdown_GoCurHeader')