All patches and comments are welcome. Please squash your changes to logical
commits before using git-format-patch and git-send-email to
patches@git.madduck.net.
If you'd read over the Git project's submission guidelines and adhered to them,
I'd be especially grateful.
1 "TODO print messages when on visual mode. I only see VISUAL, not the messages.
3 " Function interface phylosophy:
5 " - functions take arbitrary line numbers as parameters.
6 " Current cursor line is only a suitable default parameter.
8 " - only functions that bind directly to user actions:
10 " - print error messages.
11 " All intermediate functions limit themselves return `0` to indicate an error.
13 " - move the cursor. All other functions do not move the cursor.
15 " This is how you should view headers:
48 " For each level, contains the regexp that matches at that level only.
49 let s:levelRegexpDict = {
50 \ 1: '\v^(\s*#[^#]|.+\n\=+$)',
51 \ 2: '\v^(\s*##[^#]|.+\n-+$)',
53 \ 4: '\v^\s*####[^#]',
54 \ 5: '\v^\s*#####[^#]',
55 \ 6: '\v^\s*######[^#]'
58 " Maches any header level of any type.
60 " This could be deduced from `s:levelRegexpDict`, but it is more
61 " efficient to have a single regexp for this.
63 let s:headersRegexp = '\v^(\s*#|.+\n(\=+|-+)$)'
65 " Returns the line number of the first header before `line`, called the
68 " If there is no current header, return `0`.
70 " @param a:1 The line to look the header of. Default value: `getpos('.')`.
72 function! b:Markdown_GetHeaderLineNum(...)
79 if join(getline(l:l, l:l + 1), "\n") =~ s:headersRegexp
87 " - if inside a header goes to it.
88 " Return its line number.
90 " - if on top level outside any headers,
94 function! b:Markdown_MoveToCurHeader()
95 let l:lineNum = b:Markdown_GetHeaderLineNum()
97 call cursor(l:lineNum, 1)
99 echo 'outside any header'
105 " Move cursor to next header of any level.
107 " If there are no more headers, print a warning.
109 function! b:Markdown_MoveToNextHeader()
110 if search(s:headersRegexp, 'W') == 0
112 echo 'no next header'
116 " Move cursor to previous header (before current) of any level.
118 " If it does not exist, print a warning.
120 function! b:Markdown_MoveToPreviousHeader()
121 let l:curHeaderLineNumber = b:Markdown_GetHeaderLineNum()
122 let l:noPreviousHeader = 0
123 if l:curHeaderLineNumber <= 1
124 let l:noPreviousHeader = 1
126 let l:previousHeaderLineNumber = b:Markdown_GetHeaderLineNum(l:curHeaderLineNumber - 1)
127 if l:previousHeaderLineNumber == 0
128 let l:noPreviousHeader = 1
130 call cursor(l:previousHeaderLineNumber, 1)
133 if l:noPreviousHeader
134 echo 'no previous header'
138 " - if line is inside a header, return the header level (h1 -> 1, h2 -> 2, etc.).
140 " - if line is at top level outside any headers, return `0`.
142 function! b:Markdown_GetHeaderLevel(...)
144 let l:line = line('.')
148 let l:linenum = b:Markdown_GetHeaderLineNum(l:line)
150 return b:Markdown_GetLevelOfHeaderAtLine(l:linenum)
156 " Returns the level of the header at the given line.
158 " If there is no header at the given line, returns `0`.
160 function! b:Markdown_GetLevelOfHeaderAtLine(linenum)
161 let l:lines = join(getline(a:linenum, a:linenum + 1), "\n")
162 for l:key in keys(s:levelRegexpDict)
163 if l:lines =~ get(s:levelRegexpDict, l:key)
170 " Move cursor to parent header of the current header.
172 " If it does not exit, print a warning and do nothing.
174 function! b:Markdown_MoveToParentHeader()
175 let l:linenum = b:Markdown_GetParentHeaderLineNumber()
177 call cursor(l:linenum, 1)
179 echo 'no parent header'
183 " Return the line number of the parent header of line `line`.
185 " If it has no parent, return `0`.
187 function! b:Markdown_GetParentHeaderLineNumber(...)
189 let l:line = line('.')
193 let l:level = b:Markdown_GetHeaderLevel(l:line)
195 let l:linenum = b:Markdown_GetPreviousHeaderLineNumberAtLevel(l:level - 1, l:line)
201 " Return the line number of the previous header of given level.
202 " in relation to line `a:1`. If not given, `a:1 = getline()`
204 " `a:1` line is included, and this may return the current header.
208 function! b:Markdown_GetNextHeaderLineNumberAtLevel(level, ...)
210 let l:line = line('.')
215 while(l:l <= line('$'))
216 if join(getline(l:l, l:l + 1), "\n") =~ get(s:levelRegexpDict, a:level)
224 " Return the line number of the previous header of given level.
225 " in relation to line `a:1`. If not given, `a:1 = getline()`
227 " `a:1` line is included, and this may return the current header.
231 function! b:Markdown_GetPreviousHeaderLineNumberAtLevel(level, ...)
233 let l:line = line('.')
239 if join(getline(l:l, l:l + 1), "\n") =~ get(s:levelRegexpDict, a:level)
247 " Move cursor to next sibling header.
249 " If there is no next siblings, print a warning and don't move.
251 function! b:Markdown_MoveToNextSiblingHeader()
252 let l:curHeaderLineNumber = b:Markdown_GetHeaderLineNum()
253 let l:curHeaderLevel = b:Markdown_GetLevelOfHeaderAtLine(l:curHeaderLineNumber)
254 let l:curHeaderParentLineNumber = b:Markdown_GetParentHeaderLineNumber()
255 let l:nextHeaderSameLevelLineNumber = b:Markdown_GetNextHeaderLineNumberAtLevel(l:curHeaderLevel, l:curHeaderLineNumber + 1)
256 let l:noNextSibling = 0
257 if l:nextHeaderSameLevelLineNumber == 0
258 let l:noNextSibling = 1
260 let l:nextHeaderSameLevelParentLineNumber = b:Markdown_GetParentHeaderLineNumber(l:nextHeaderSameLevelLineNumber)
261 if l:curHeaderParentLineNumber == l:nextHeaderSameLevelParentLineNumber
262 call cursor(l:nextHeaderSameLevelLineNumber, 1)
264 let l:noNextSibling = 1
268 echo 'no next sibling header'
272 " Move cursor to previous sibling header.
274 " If there is no previous siblings, print a warning and do nothing.
276 function! b:Markdown_MoveToPreviousSiblingHeader()
277 let l:curHeaderLineNumber = b:Markdown_GetHeaderLineNum()
278 let l:curHeaderLevel = b:Markdown_GetLevelOfHeaderAtLine(l:curHeaderLineNumber)
279 let l:curHeaderParentLineNumber = b:Markdown_GetParentHeaderLineNumber()
280 let l:previousHeaderSameLevelLineNumber = b:Markdown_GetPreviousHeaderLineNumberAtLevel(l:curHeaderLevel, l:curHeaderLineNumber - 1)
281 let l:noPreviousSibling = 0
282 if l:previousHeaderSameLevelLineNumber == 0
283 let l:noPreviousSibling = 1
285 let l:previousHeaderSameLevelParentLineNumber = b:Markdown_GetParentHeaderLineNumber(l:previousHeaderSameLevelLineNumber)
286 if l:curHeaderParentLineNumber == l:previousHeaderSameLevelParentLineNumber
287 call cursor(l:previousHeaderSameLevelLineNumber, 1)
289 let l:noPreviousSibling = 1
292 if l:noPreviousSibling
293 echo 'no previous sibling header'
297 function! b:Markdown_Toc(...)
299 let l:window_type = a:1
301 let l:window_type = 'vertical'
303 silent vimgrep '^#' %
304 if l:window_type ==# 'horizontal'
306 elseif l:window_type ==# 'vertical'
308 let &winwidth=(&columns/2)
309 elseif l:window_type ==# 'tab'
315 %s/\v^([^|]*\|){2,2} #//
316 for i in range(1, line('$'))
317 let l:line = getline(i)
318 let l:header = matchstr(l:line, '^#*')
319 let l:length = len(l:header)
320 let l:line = substitute(l:line, '\v^#*[ ]*', '', '')
321 let l:line = substitute(l:line, '\v[ ]*#*$', '', '')
322 let l:line = repeat(' ', (2 * l:length)) . l:line
323 call setline(i, l:line)
330 " Wrapper to do move commands in visual mode.
332 function! s:VisMove(f)
337 " Map in both normal and visual modes.
339 function! s:MapNormVis(rhs,lhs)
340 execute 'nn <buffer><silent> ' . a:rhs . ' :call ' . a:lhs . '()<cr>'
341 execute 'vn <buffer><silent> ' . a:rhs . ' <esc>:call <sid>VisMove(''' . a:lhs . ''')<cr>'
345 call <sid>MapNormVis('<Plug>(Markdown_MoveToNextHeader)', 'b:Markdown_MoveToNextHeader')
346 call <sid>MapNormVis('<Plug>(Markdown_MoveToPreviousHeader)', 'b:Markdown_MoveToPreviousHeader')
347 call <sid>MapNormVis('<Plug>(Markdown_MoveToNextSiblingHeader)', 'b:Markdown_MoveToNextSiblingHeader')
348 call <sid>MapNormVis('<Plug>(Markdown_MoveToPreviousSiblingHeader)', 'b:Markdown_MoveToPreviousSiblingHeader')
350 call <sid>MapNormVis('<Plug>(Markdown_MoveToParentHeader)', 'b:Markdown_MoveToParentHeader')
352 call <sid>MapNormVis('<Plug>(Markdown_MoveToCurHeader)', 'b:Markdown_MoveToCurHeader')
354 if ! exists('g:vim_markdown_no_default_key_mappings')
355 \ || !g:vim_markdown_no_default_key_mappings
356 nmap ]] <Plug>(Markdown_MoveToNextHeader)
357 nmap [[ <Plug>(Markdown_MoveToPreviousHeader)
358 nmap ][ <Plug>(Markdown_MoveToNextSiblingHeader)
359 nmap [] <Plug>(Markdown_MoveToPreviousSiblingHeader)
360 nmap ]u <Plug>(Markdown_MoveToParentHeader)
361 nmap ]c <Plug>(Markdown_MoveToCurHeader)
363 vmap ]] <Plug>(Markdown_MoveToNextHeader)
364 vmap [[ <Plug>(Markdown_MoveToPreviousHeader)
365 vmap ][ <Plug>(Markdown_MoveToNextSiblingHeader)
366 vmap [] <Plug>(Markdown_MoveToPreviousSiblingHeader)
367 vmap ]u <Plug>(Markdown_MoveToParentHeader)
368 vmap ]c <Plug>(Markdown_MoveToCurHeader)
371 command! -buffer Toc call b:Markdown_Toc()
372 command! -buffer Toch call b:Markdown_Toc('horizontal')
373 command! -buffer Tocv call b:Markdown_Toc('vertical')
374 command! -buffer Toct call b:Markdown_Toc('tab')