- cal cursor( l:lineNum, 1 )
- el
- ec 'outside any header'
- "norm! gg
- en
- retu l:lineNum
-endf
-
-"goes to next header of any level
-"
-"if no there are no more headers print a warning
-fu! b:Markdown_GoNextHeader()
- if search( s:headerExpr, 'W' ) == 0
- "norm! G
- ec 'no next header'
- en
-endf
-
-"goes to previous header of any level
-"
-"if it does not exist, print a warning
-fu! b:Markdown_GoPreviousHeader()
- let l:oldPos = getpos('.')
- let l:curHeaderLineNumber = b:Markdown_GoCurHeader()
- if l:curHeaderLineNumber == 0
- cal setpos('.',l:oldPos)
- en
- if search( s:headerExpr, 'bW' ) == 0
- "norm! gg
- cal setpos('.',l:oldPos)
- ec 'no previous header'
- en
-endf
-
-"goes to previous header of any level
-"
-"if it exists, return its lines number
-"
-"otherwise, print a warning and return 0
-fu! b:Markdown_GoHeaderUp()
- let l:oldPos = getpos('.')
- let l:hashes = b:Markdown_GoCurHeaderGetHashes()
- if len( l:hashes ) > 1
- cal search( '^' . l:hashes[1:] . '[^#]', 'b' )
- el
- cal setpos('.',l:oldPos)
- ec 'already at top level'
- en
-endf
-
-"if no more next siblings, print error message and do nothing.
-fu! b:Markdown_GoNextSiblingHeader()
- let l:oldPos = getpos('.')
- let l:hashes = b:Markdown_GoCurHeaderGetHashes()
- let l:noSibling = 0
-
- if l:hashes ==# ''
- let l:noSibling = 1
- el
- 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
- \ )
- \ )
- cal cursor( l:nextSameLevelLine, 1 )
- el
- let l:noSibling = 1
- en
- en
-
- if l:noSibling
- cal setpos('.',l:oldPos)
- ec 'no next sibling'
- en
-endf
-
-"if no more next siblings, print error message and do nothing.
-fu! b:Markdown_GoPreviousSiblingHeader()
- let l:oldPos = getpos('.')
- let l:hashes = b:Markdown_GoCurHeaderGetHashes()
- let l:noSibling = 0
-
- if l:hashes ==# ''
- let l:noSibling = 1
- el
- 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, 1 )
- el
- let l:noSibling = 1
- en
- en
-
- if l:noSibling
- cal setpos('.',l:oldPos)
- ec 'no previous sibling'
- en
-
-endf
-
-"wrapper to do move commands in visual mode
-fu! s:VisMove(f)
+ call cursor(l:lineNum, 1)
+ else
+ echo 'outside any header'
+ "normal! gg
+ endif
+ return l:lineNum
+endfunction
+
+" Move cursor to next header of any level.
+"
+" If there are no more headers, print a warning.
+"
+function! s:Markdown_MoveToNextHeader()
+ if search(s:headersRegexp, 'W') == 0
+ "normal! G
+ echo 'no next header'
+ endif
+endfunction
+
+" Move cursor to previous header (before current) of any level.
+"
+" If it does not exist, print a warning.
+"
+function! s:Markdown_MoveToPreviousHeader()
+ let l:curHeaderLineNumber = s:Markdown_GetHeaderLineNum()
+ let l:noPreviousHeader = 0
+ if l:curHeaderLineNumber <= 1
+ let l:noPreviousHeader = 1
+ else
+ let l:previousHeaderLineNumber = s:Markdown_GetHeaderLineNum(l:curHeaderLineNumber - 1)
+ if l:previousHeaderLineNumber == 0
+ let l:noPreviousHeader = 1
+ else
+ call cursor(l:previousHeaderLineNumber, 1)
+ endif
+ endif
+ if l:noPreviousHeader
+ echo 'no previous header'
+ endif
+endfunction
+
+" - if line is inside a header, return the header level (h1 -> 1, h2 -> 2, etc.).
+"
+" - if line is at top level outside any headers, return `0`.
+"
+function! s:Markdown_GetHeaderLevel(...)
+ if a:0 == 0
+ let l:line = line('.')
+ else
+ let l:line = a:1
+ endif
+ let l:linenum = s:Markdown_GetHeaderLineNum(l:line)
+ if l:linenum != 0
+ return s:Markdown_GetLevelOfHeaderAtLine(l:linenum)
+ else
+ return 0
+ endif
+endfunction
+
+" Returns the level of the header at the given line.
+"
+" If there is no header at the given line, returns `0`.
+"
+function! s:Markdown_GetLevelOfHeaderAtLine(linenum)
+ let l:lines = join(getline(a:linenum, a:linenum + 1), "\n")
+ for l:key in keys(s:levelRegexpDict)
+ if l:lines =~ get(s:levelRegexpDict, l:key)
+ return l:key
+ endif
+ endfor
+ return 0
+endfunction
+
+" Move cursor to parent header of the current header.
+"
+" If it does not exit, print a warning and do nothing.
+"
+function! s:Markdown_MoveToParentHeader()
+ let l:linenum = s:Markdown_GetParentHeaderLineNumber()
+ if l:linenum != 0
+ call cursor(l:linenum, 1)
+ else
+ echo 'no parent header'
+ endif
+endfunction
+
+" Return the line number of the parent header of line `line`.
+"
+" If it has no parent, return `0`.
+"
+function! s:Markdown_GetParentHeaderLineNumber(...)
+ if a:0 == 0
+ let l:line = line('.')
+ else
+ let l:line = a:1
+ endif
+ let l:level = s:Markdown_GetHeaderLevel(l:line)
+ if l:level > 1
+ let l:linenum = s:Markdown_GetPreviousHeaderLineNumberAtLevel(l:level - 1, l:line)
+ return l:linenum
+ endif
+ return 0
+endfunction
+
+" Return the line number of the previous header of given level.
+" in relation to line `a:1`. If not given, `a:1 = getline()`
+"
+" `a:1` line is included, and this may return the current header.
+"
+" If none return 0.
+"
+function! s:Markdown_GetNextHeaderLineNumberAtLevel(level, ...)
+ if a:0 < 1
+ let l:line = line('.')
+ else
+ let l:line = a:1
+ endif
+ let l:l = l:line
+ while(l:l <= line('$'))
+ if join(getline(l:l, l:l + 1), "\n") =~ get(s:levelRegexpDict, a:level)
+ return l:l
+ endif
+ let l:l += 1
+ endwhile
+ return 0
+endfunction
+
+" Return the line number of the previous header of given level.
+" in relation to line `a:1`. If not given, `a:1 = getline()`
+"
+" `a:1` line is included, and this may return the current header.
+"
+" If none return 0.
+"
+function! s:Markdown_GetPreviousHeaderLineNumberAtLevel(level, ...)
+ if a:0 == 0
+ let l:line = line('.')
+ else
+ let l:line = a:1
+ endif
+ let l:l = l:line
+ while(l:l > 0)
+ if join(getline(l:l, l:l + 1), "\n") =~ get(s:levelRegexpDict, a:level)
+ return l:l
+ endif
+ let l:l -= 1
+ endwhile
+ return 0
+endfunction
+
+" Move cursor to next sibling header.
+"
+" If there is no next siblings, print a warning and don't move.
+"
+function! s:Markdown_MoveToNextSiblingHeader()
+ let l:curHeaderLineNumber = s:Markdown_GetHeaderLineNum()
+ let l:curHeaderLevel = s:Markdown_GetLevelOfHeaderAtLine(l:curHeaderLineNumber)
+ let l:curHeaderParentLineNumber = s:Markdown_GetParentHeaderLineNumber()
+ let l:nextHeaderSameLevelLineNumber = s:Markdown_GetNextHeaderLineNumberAtLevel(l:curHeaderLevel, l:curHeaderLineNumber + 1)
+ let l:noNextSibling = 0
+ if l:nextHeaderSameLevelLineNumber == 0
+ let l:noNextSibling = 1
+ else
+ let l:nextHeaderSameLevelParentLineNumber = s:Markdown_GetParentHeaderLineNumber(l:nextHeaderSameLevelLineNumber)
+ if l:curHeaderParentLineNumber == l:nextHeaderSameLevelParentLineNumber
+ call cursor(l:nextHeaderSameLevelLineNumber, 1)
+ else
+ let l:noNextSibling = 1
+ endif
+ endif
+ if l:noNextSibling
+ echo 'no next sibling header'
+ endif
+endfunction
+
+" Move cursor to previous sibling header.
+"
+" If there is no previous siblings, print a warning and do nothing.
+"
+function! s:Markdown_MoveToPreviousSiblingHeader()
+ let l:curHeaderLineNumber = s:Markdown_GetHeaderLineNum()
+ let l:curHeaderLevel = s:Markdown_GetLevelOfHeaderAtLine(l:curHeaderLineNumber)
+ let l:curHeaderParentLineNumber = s:Markdown_GetParentHeaderLineNumber()
+ let l:previousHeaderSameLevelLineNumber = s:Markdown_GetPreviousHeaderLineNumberAtLevel(l:curHeaderLevel, l:curHeaderLineNumber - 1)
+ let l:noPreviousSibling = 0
+ if l:previousHeaderSameLevelLineNumber == 0
+ let l:noPreviousSibling = 1
+ else
+ let l:previousHeaderSameLevelParentLineNumber = s:Markdown_GetParentHeaderLineNumber(l:previousHeaderSameLevelLineNumber)
+ if l:curHeaderParentLineNumber == l:previousHeaderSameLevelParentLineNumber
+ call cursor(l:previousHeaderSameLevelLineNumber, 1)
+ else
+ let l:noPreviousSibling = 1
+ endif
+ endif
+ if l:noPreviousSibling
+ echo 'no previous sibling header'
+ endif
+endfunction
+
+function! s:Markdown_Toc(...)
+ if a:0 > 0
+ let l:window_type = a:1
+ else
+ let l:window_type = 'vertical'
+ endif
+
+ try
+ silent vimgrep /\(^\S.*\(\n[=-]\+\)\@=\|^#\+\)/ %
+ catch /E480/
+ echom "Toc: No headers."
+ return
+ endtry
+
+ if l:window_type ==# 'horizontal'
+ copen
+ elseif l:window_type ==# 'vertical'
+ vertical copen
+ let &winwidth=(&columns/2)
+ elseif l:window_type ==# 'tab'
+ tab copen
+ else
+ copen
+ endif
+ set modifiable
+ %s/\v^([^|]*\|){2,2} #//
+ for i in range(1, line('$'))
+ " this is the quickfix data for the current item
+ let d = getqflist()[i-1]
+ " atx headers
+ if match(d.text, "^#") > -1
+ let l:level = len(matchstr(d.text, '#*', 'g'))-1
+ let d.text = d.text[l:level+2:]
+ " setex headers
+ else
+ let l:next_line = getbufline(bufname(d.bufnr), d.lnum+1)
+ if match(l:next_line, "=") > -1
+ let l:level = 0
+ elseif match(l:next_line, "-") > -1
+ let l:level = 1
+ endif
+ endif
+ call setline(i, repeat(' ', l:level). d.text)
+ endfor
+ set nomodified
+ set nomodifiable
+ normal! gg
+endfunction
+
+" Wrapper to do move commands in visual mode.
+"
+function! s:VisMove(f)