791 lines
25 KiB
VimL
791 lines
25 KiB
VimL
"TODO print messages when on visual mode. I only see VISUAL, not the messages.
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" Function interface phylosophy:
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"
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" - functions take arbitrary line numbers as parameters.
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" Current cursor line is only a suitable default parameter.
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"
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" - only functions that bind directly to user actions:
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"
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" - print error messages.
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" All intermediate functions limit themselves return `0` to indicate an error.
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"
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" - move the cursor. All other functions do not move the cursor.
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"
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" This is how you should view headers for the header mappings:
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"
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" |BUFFER
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" |
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" |Outside any header
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" |
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" a-+# a
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" |
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" |Inside a
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" |
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" a-+
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" b-+## b
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" |
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" |inside b
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" |
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" b-+
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" c-+### c
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" |
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" |Inside c
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" |
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" c-+
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" d-|# d
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" |
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" |Inside d
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" |
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" d-+
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" e-|e
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" |====
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" |
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" |Inside e
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" |
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" e-+
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" For each level, contains the regexp that matches at that level only.
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"
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let s:levelRegexpDict = {
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\ 1: '\v^(#[^#]@=|.+\n\=+$)',
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\ 2: '\v^(##[^#]@=|.+\n-+$)',
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\ 3: '\v^###[^#]@=',
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\ 4: '\v^####[^#]@=',
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\ 5: '\v^#####[^#]@=',
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\ 6: '\v^######[^#]@='
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\ }
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" Maches any header level of any type.
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"
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" This could be deduced from `s:levelRegexpDict`, but it is more
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" efficient to have a single regexp for this.
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"
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let s:headersRegexp = '\v^(#|.+\n(\=+|-+)$)'
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" Returns the line number of the first header before `line`, called the
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" current header.
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"
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" If there is no current header, return `0`.
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"
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" @param a:1 The line to look the header of. Default value: `getpos('.')`.
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"
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function! s:GetHeaderLineNum(...)
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if a:0 == 0
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let l:l = line('.')
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else
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let l:l = a:1
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endif
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while(l:l > 0)
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if join(getline(l:l, l:l + 1), "\n") =~ s:headersRegexp
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return l:l
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endif
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let l:l -= 1
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endwhile
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return 0
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endfunction
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" - if inside a header goes to it.
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" Return its line number.
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"
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" - if on top level outside any headers,
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" print a warning
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" Return `0`.
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"
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function! s:MoveToCurHeader()
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let l:lineNum = s:GetHeaderLineNum()
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if l:lineNum != 0
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call cursor(l:lineNum, 1)
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else
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echo 'outside any header'
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"normal! gg
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endif
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return l:lineNum
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endfunction
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" Move cursor to next header of any level.
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"
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" If there are no more headers, print a warning.
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"
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function! s:MoveToNextHeader()
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if search(s:headersRegexp, 'W') == 0
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"normal! G
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echo 'no next header'
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endif
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endfunction
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" Move cursor to previous header (before current) of any level.
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"
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" If it does not exist, print a warning.
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"
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function! s:MoveToPreviousHeader()
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let l:curHeaderLineNumber = s:GetHeaderLineNum()
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let l:noPreviousHeader = 0
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if l:curHeaderLineNumber <= 1
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let l:noPreviousHeader = 1
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else
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let l:previousHeaderLineNumber = s:GetHeaderLineNum(l:curHeaderLineNumber - 1)
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if l:previousHeaderLineNumber == 0
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let l:noPreviousHeader = 1
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else
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call cursor(l:previousHeaderLineNumber, 1)
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endif
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endif
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if l:noPreviousHeader
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echo 'no previous header'
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endif
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endfunction
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" - if line is inside a header, return the header level (h1 -> 1, h2 -> 2, etc.).
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"
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" - if line is at top level outside any headers, return `0`.
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"
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function! s:GetHeaderLevel(...)
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if a:0 == 0
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let l:line = line('.')
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else
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let l:line = a:1
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endif
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let l:linenum = s:GetHeaderLineNum(l:line)
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if l:linenum != 0
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return s:GetLevelOfHeaderAtLine(l:linenum)
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else
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return 0
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endif
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endfunction
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" Returns the level of the header at the given line.
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"
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" If there is no header at the given line, returns `0`.
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"
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function! s:GetLevelOfHeaderAtLine(linenum)
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let l:lines = join(getline(a:linenum, a:linenum + 1), "\n")
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for l:key in keys(s:levelRegexpDict)
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if l:lines =~ get(s:levelRegexpDict, l:key)
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return l:key
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endif
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endfor
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return 0
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endfunction
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" Move cursor to parent header of the current header.
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"
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" If it does not exit, print a warning and do nothing.
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"
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function! s:MoveToParentHeader()
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let l:linenum = s:GetParentHeaderLineNumber()
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if l:linenum != 0
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call cursor(l:linenum, 1)
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else
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echo 'no parent header'
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endif
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endfunction
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" Return the line number of the parent header of line `line`.
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"
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" If it has no parent, return `0`.
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"
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function! s:GetParentHeaderLineNumber(...)
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if a:0 == 0
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let l:line = line('.')
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else
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let l:line = a:1
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endif
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let l:level = s:GetHeaderLevel(l:line)
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if l:level > 1
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let l:linenum = s:GetPreviousHeaderLineNumberAtLevel(l:level - 1, l:line)
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return l:linenum
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endif
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return 0
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endfunction
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" Return the line number of the previous header of given level.
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" in relation to line `a:1`. If not given, `a:1 = getline()`
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"
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" `a:1` line is included, and this may return the current header.
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"
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" If none return 0.
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"
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function! s:GetNextHeaderLineNumberAtLevel(level, ...)
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if a:0 < 1
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let l:line = line('.')
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else
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let l:line = a:1
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endif
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let l:l = l:line
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while(l:l <= line('$'))
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if join(getline(l:l, l:l + 1), "\n") =~ get(s:levelRegexpDict, a:level)
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return l:l
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endif
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let l:l += 1
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endwhile
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return 0
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endfunction
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" Return the line number of the previous header of given level.
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" in relation to line `a:1`. If not given, `a:1 = getline()`
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"
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" `a:1` line is included, and this may return the current header.
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"
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" If none return 0.
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"
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function! s:GetPreviousHeaderLineNumberAtLevel(level, ...)
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if a:0 == 0
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let l:line = line('.')
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else
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let l:line = a:1
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endif
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let l:l = l:line
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while(l:l > 0)
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if join(getline(l:l, l:l + 1), "\n") =~ get(s:levelRegexpDict, a:level)
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return l:l
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endif
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let l:l -= 1
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endwhile
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return 0
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endfunction
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" Move cursor to next sibling header.
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"
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" If there is no next siblings, print a warning and don't move.
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"
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function! s:MoveToNextSiblingHeader()
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let l:curHeaderLineNumber = s:GetHeaderLineNum()
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let l:curHeaderLevel = s:GetLevelOfHeaderAtLine(l:curHeaderLineNumber)
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let l:curHeaderParentLineNumber = s:GetParentHeaderLineNumber()
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let l:nextHeaderSameLevelLineNumber = s:GetNextHeaderLineNumberAtLevel(l:curHeaderLevel, l:curHeaderLineNumber + 1)
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let l:noNextSibling = 0
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if l:nextHeaderSameLevelLineNumber == 0
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let l:noNextSibling = 1
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else
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let l:nextHeaderSameLevelParentLineNumber = s:GetParentHeaderLineNumber(l:nextHeaderSameLevelLineNumber)
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if l:curHeaderParentLineNumber == l:nextHeaderSameLevelParentLineNumber
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call cursor(l:nextHeaderSameLevelLineNumber, 1)
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else
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let l:noNextSibling = 1
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endif
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endif
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if l:noNextSibling
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echo 'no next sibling header'
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endif
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endfunction
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" Move cursor to previous sibling header.
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"
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" If there is no previous siblings, print a warning and do nothing.
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"
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function! s:MoveToPreviousSiblingHeader()
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let l:curHeaderLineNumber = s:GetHeaderLineNum()
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let l:curHeaderLevel = s:GetLevelOfHeaderAtLine(l:curHeaderLineNumber)
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let l:curHeaderParentLineNumber = s:GetParentHeaderLineNumber()
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let l:previousHeaderSameLevelLineNumber = s:GetPreviousHeaderLineNumberAtLevel(l:curHeaderLevel, l:curHeaderLineNumber - 1)
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let l:noPreviousSibling = 0
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if l:previousHeaderSameLevelLineNumber == 0
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let l:noPreviousSibling = 1
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else
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let l:previousHeaderSameLevelParentLineNumber = s:GetParentHeaderLineNumber(l:previousHeaderSameLevelLineNumber)
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if l:curHeaderParentLineNumber == l:previousHeaderSameLevelParentLineNumber
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call cursor(l:previousHeaderSameLevelLineNumber, 1)
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else
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let l:noPreviousSibling = 1
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endif
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endif
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if l:noPreviousSibling
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echo 'no previous sibling header'
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endif
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endfunction
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function! s:Toc(...)
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if a:0 > 0
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let l:window_type = a:1
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else
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let l:window_type = 'vertical'
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endif
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let l:bufnr = bufnr('%')
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let l:cursor_line = line('.')
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let l:cursor_header = 0
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let l:fenced_block = 0
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let l:front_matter = 0
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let l:header_list = []
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let l:header_max_len = 0
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let l:vim_markdown_toc_autofit = get(g:, "vim_markdown_toc_autofit", 0)
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let l:vim_markdown_frontmatter = get(g:, "vim_markdown_frontmatter", 0)
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for i in range(1, line('$'))
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let l:lineraw = getline(i)
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let l:l1 = getline(i+1)
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let l:line = substitute(l:lineraw, "#", "\\\#", "g")
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if l:line =~ '````*' || l:line =~ '\~\~\~\~*'
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if l:fenced_block == 0
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let l:fenced_block = 1
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elseif l:fenced_block == 1
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let l:fenced_block = 0
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endif
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elseif l:vim_markdown_frontmatter == 1
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if l:front_matter == 1
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if l:line == '---'
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let l:front_matter = 0
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endif
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elseif i == 1
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if l:line == '---'
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let l:front_matter = 1
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endif
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endif
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endif
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if l:line =~ '^#\+' || (l:l1 =~ '^=\+\s*$' || l:l1 =~ '^-\+\s*$') && l:line =~ '^\S'
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let l:is_header = 1
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else
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let l:is_header = 0
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endif
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if l:is_header == 1 && l:fenced_block == 0 && l:front_matter == 0
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" append line to location list
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let l:item = {'lnum': i, 'text': l:line, 'valid': 1, 'bufnr': l:bufnr, 'col': 1}
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let l:header_list = l:header_list + [l:item]
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" set header number of the cursor position
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if l:cursor_header == 0
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if i == l:cursor_line
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let l:cursor_header = len(l:header_list)
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elseif i > l:cursor_line
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let l:cursor_header = len(l:header_list) - 1
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endif
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endif
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" keep track of the longest header size (heading level + title)
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let l:total_len = stridx(l:line, ' ') + strdisplaywidth(l:line)
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if l:total_len > l:header_max_len
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let l:header_max_len = l:total_len
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endif
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endif
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endfor
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call setloclist(0, l:header_list)
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if len(l:header_list) == 0
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echom "Toc: No headers."
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return
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endif
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if l:window_type ==# 'horizontal'
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lopen
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elseif l:window_type ==# 'vertical'
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vertical lopen
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" auto-fit toc window when possible to shrink it
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if (&columns/2) > l:header_max_len && l:vim_markdown_toc_autofit == 1
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execute 'vertical resize ' . (l:header_max_len + 1)
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else
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execute 'vertical resize ' . (&columns/2)
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endif
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elseif l:window_type ==# 'tab'
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tab lopen
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else
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lopen
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endif
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setlocal modifiable
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for i in range(1, line('$'))
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" this is the location-list data for the current item
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let d = getloclist(0)[i-1]
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" atx headers
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if match(d.text, "^#") > -1
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let l:level = len(matchstr(d.text, '#*', 'g'))-1
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let d.text = substitute(d.text, '\v^#*[ ]*', '', '')
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let d.text = substitute(d.text, '\v[ ]*#*$', '', '')
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" setex headers
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else
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let l:next_line = getbufline(d.bufnr, d.lnum+1)
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if match(l:next_line, "=") > -1
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let l:level = 0
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elseif match(l:next_line, "-") > -1
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let l:level = 1
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endif
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endif
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call setline(i, repeat(' ', l:level). d.text)
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endfor
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setlocal nomodified
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setlocal nomodifiable
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execute 'normal! ' . l:cursor_header . 'G'
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endfunction
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" Convert Setex headers in range `line1 .. line2` to Atx.
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"
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" Return the number of conversions.
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"
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function! s:SetexToAtx(line1, line2)
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let l:originalNumLines = line('$')
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execute 'silent! ' . a:line1 . ',' . a:line2 . 'substitute/\v(.*\S.*)\n\=+$/# \1/'
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execute 'silent! ' . a:line1 . ',' . a:line2 . 'substitute/\v(.*\S.*)\n-+$/## \1/'
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return l:originalNumLines - line('$')
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endfunction
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" If `a:1` is 0, decrease the level of all headers in range `line1 .. line2`.
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"
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" Otherwise, increase the level. `a:1` defaults to `0`.
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"
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function! s:HeaderDecrease(line1, line2, ...)
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if a:0 > 0
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let l:increase = a:1
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else
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let l:increase = 0
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endif
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if l:increase
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let l:forbiddenLevel = 6
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let l:replaceLevels = [5, 1]
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let l:levelDelta = 1
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else
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let l:forbiddenLevel = 1
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let l:replaceLevels = [2, 6]
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let l:levelDelta = -1
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endif
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for l:line in range(a:line1, a:line2)
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if join(getline(l:line, l:line + 1), "\n") =~ s:levelRegexpDict[l:forbiddenLevel]
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echomsg 'There is an h' . l:forbiddenLevel . ' at line ' . l:line . '. Aborting.'
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return
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endif
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endfor
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let l:numSubstitutions = s:SetexToAtx(a:line1, a:line2)
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let l:flags = (&gdefault ? '' : 'g')
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for l:level in range(replaceLevels[0], replaceLevels[1], -l:levelDelta)
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execute 'silent! ' . a:line1 . ',' . (a:line2 - l:numSubstitutions) . 'substitute/' . s:levelRegexpDict[l:level] . '/' . repeat('#', l:level + l:levelDelta) . '/' . l:flags
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endfor
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endfunction
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" Format table under cursor.
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"
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" Depends on Tabularize.
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"
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function! s:TableFormat()
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let l:pos = getpos('.')
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normal! {
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" Search instead of `normal! j` because of the table at beginning of file edge case.
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call search('|')
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normal! j
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" Remove everything that is not a pipe, colon or hyphen next to a colon othewise
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" well formated tables would grow because of addition of 2 spaces on the separator
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" line by Tabularize /|.
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let l:flags = (&gdefault ? '' : 'g')
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execute 's/\(:\@<!-:\@!\|[^|:-]\)//e' . l:flags
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execute 's/--/-/e' . l:flags
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Tabularize /|
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" Move colons for alignment to left or right side of the cell.
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execute 's/:\( \+\)|/\1:|/e' . l:flags
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execute 's/|\( \+\):/|:\1/e' . l:flags
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execute 's/ /-/' . l:flags
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call setpos('.', l:pos)
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endfunction
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" Wrapper to do move commands in visual mode.
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"
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function! s:VisMove(f)
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norm! gv
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call function(a:f)()
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endfunction
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" Map in both normal and visual modes.
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"
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function! s:MapNormVis(rhs,lhs)
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execute 'nn <buffer><silent> ' . a:rhs . ' :call ' . a:lhs . '()<cr>'
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execute 'vn <buffer><silent> ' . a:rhs . ' <esc>:call <sid>VisMove(''' . a:lhs . ''')<cr>'
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endfunction
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" Parameters:
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"
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" - step +1 for right, -1 for left
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"
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" TODO: multiple lines.
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"
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function! s:FindCornerOfSyntax(lnum, col, step)
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let l:col = a:col
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let l:syn = synIDattr(synID(a:lnum, l:col, 1), 'name')
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while synIDattr(synID(a:lnum, l:col, 1), 'name') ==# l:syn
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let l:col += a:step
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endwhile
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return l:col - a:step
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endfunction
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" Return the next position of the given syntax name,
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" inclusive on the given position.
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"
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" TODO: multiple lines
|
|
"
|
|
function! s:FindNextSyntax(lnum, col, name)
|
|
let l:col = a:col
|
|
let l:step = 1
|
|
while synIDattr(synID(a:lnum, l:col, 1), 'name') !=# a:name
|
|
let l:col += l:step
|
|
endwhile
|
|
return [a:lnum, l:col]
|
|
endfunction
|
|
|
|
function! s:FindCornersOfSyntax(lnum, col)
|
|
return [<sid>FindLeftOfSyntax(a:lnum, a:col), <sid>FindRightOfSyntax(a:lnum, a:col)]
|
|
endfunction
|
|
|
|
function! s:FindRightOfSyntax(lnum, col)
|
|
return <sid>FindCornerOfSyntax(a:lnum, a:col, 1)
|
|
endfunction
|
|
|
|
function! s:FindLeftOfSyntax(lnum, col)
|
|
return <sid>FindCornerOfSyntax(a:lnum, a:col, -1)
|
|
endfunction
|
|
|
|
" Returns:
|
|
"
|
|
" - a string with the the URL for the link under the cursor
|
|
" - an empty string if the cursor is not on a link
|
|
"
|
|
" TODO
|
|
"
|
|
" - multiline support
|
|
" - give an error if the separator does is not on a link
|
|
"
|
|
function! s:Markdown_GetUrlForPosition(lnum, col)
|
|
let l:lnum = a:lnum
|
|
let l:col = a:col
|
|
let l:syn = synIDattr(synID(l:lnum, l:col, 1), 'name')
|
|
|
|
if l:syn ==# 'mkdInlineURL' || l:syn ==# 'mkdURL' || l:syn ==# 'mkdLinkDefTarget'
|
|
" Do nothing.
|
|
elseif l:syn ==# 'mkdLink'
|
|
let [l:lnum, l:col] = <sid>FindNextSyntax(l:lnum, l:col, 'mkdURL')
|
|
let l:syn = 'mkdURL'
|
|
elseif l:syn ==# 'mkdDelimiter'
|
|
let l:line = getline(l:lnum)
|
|
let l:char = l:line[col - 1]
|
|
if l:char ==# '<'
|
|
let l:col += 1
|
|
elseif l:char ==# '>' || l:char ==# ')'
|
|
let l:col -= 1
|
|
elseif l:char ==# '[' || l:char ==# ']' || l:char ==# '('
|
|
let [l:lnum, l:col] = <sid>FindNextSyntax(l:lnum, l:col, 'mkdURL')
|
|
else
|
|
return ''
|
|
endif
|
|
else
|
|
return ''
|
|
endif
|
|
|
|
let [l:left, l:right] = <sid>FindCornersOfSyntax(l:lnum, l:col)
|
|
return getline(l:lnum)[l:left - 1 : l:right - 1]
|
|
endfunction
|
|
|
|
" Front end for GetUrlForPosition.
|
|
"
|
|
function! s:OpenUrlUnderCursor()
|
|
let l:url = s:Markdown_GetUrlForPosition(line('.'), col('.'))
|
|
if l:url != ''
|
|
call s:VersionAwareNetrwBrowseX(l:url)
|
|
else
|
|
echomsg 'The cursor is not on a link.'
|
|
endif
|
|
endfunction
|
|
|
|
" We need a definition guard because we invoke 'edit' which will reload this
|
|
" script while this function is running. We must not replace it.
|
|
if !exists('*s:EditUrlUnderCursor')
|
|
function s:EditUrlUnderCursor()
|
|
let l:url = s:Markdown_GetUrlForPosition(line('.'), col('.'))
|
|
if l:url != ''
|
|
if get(g:, 'vim_markdown_autowrite', 0)
|
|
write
|
|
endif
|
|
let l:anchor = ''
|
|
if get(g:, 'vim_markdown_follow_anchor', 0)
|
|
let l:parts = split(l:url, '#', 1)
|
|
if len(l:parts) == 2
|
|
let [l:url, l:anchor] = parts
|
|
let l:anchorexpr = get(g:, 'vim_markdown_anchorexpr', '')
|
|
if l:anchorexpr != ''
|
|
let l:anchor = eval(substitute(
|
|
\ l:anchorexpr, 'v:anchor',
|
|
\ escape('"'.l:anchor.'"', '"'), ''))
|
|
endif
|
|
endif
|
|
endif
|
|
if l:url != ''
|
|
let l:ext = ''
|
|
if get(g:, 'vim_markdown_no_extensions_in_markdown', 0)
|
|
" use another file extension if preferred
|
|
if exists('g:vim_markdown_auto_extension_ext')
|
|
let l:ext = '.'.g:vim_markdown_auto_extension_ext
|
|
else
|
|
let l:ext = '.md'
|
|
endif
|
|
endif
|
|
let l:url = fnameescape(fnamemodify(expand('%:h').'/'.l:url.l:ext, ':.'))
|
|
let l:editmethod = ''
|
|
" determine how to open the linked file (split, tab, etc)
|
|
if exists('g:vim_markdown_edit_url_in')
|
|
if g:vim_markdown_edit_url_in == 'tab'
|
|
let l:editmethod = 'tabnew'
|
|
elseif g:vim_markdown_edit_url_in == 'vsplit'
|
|
let l:editmethod = 'vsp'
|
|
elseif g:vim_markdown_edit_url_in == 'hsplit'
|
|
let l:editmethod = 'sp'
|
|
else
|
|
let l:editmethod = 'edit'
|
|
endif
|
|
else
|
|
" default to current buffer
|
|
let l:editmethod = 'edit'
|
|
endif
|
|
execute l:editmethod l:url
|
|
endif
|
|
if l:anchor != ''
|
|
silent! execute '/'.l:anchor
|
|
endif
|
|
else
|
|
echomsg 'The cursor is not on a link.'
|
|
endif
|
|
endfunction
|
|
endif
|
|
|
|
function! s:VersionAwareNetrwBrowseX(url)
|
|
if has('patch-7.4.567')
|
|
call netrw#BrowseX(a:url, 0)
|
|
else
|
|
call netrw#NetrwBrowseX(a:url, 0)
|
|
endif
|
|
endf
|
|
|
|
function! s:MapNotHasmapto(lhs, rhs)
|
|
if !hasmapto('<Plug>' . a:rhs)
|
|
execute 'nmap <buffer>' . a:lhs . ' <Plug>' . a:rhs
|
|
execute 'vmap <buffer>' . a:lhs . ' <Plug>' . a:rhs
|
|
endif
|
|
endfunction
|
|
|
|
call <sid>MapNormVis('<Plug>Markdown_MoveToNextHeader', '<sid>MoveToNextHeader')
|
|
call <sid>MapNormVis('<Plug>Markdown_MoveToPreviousHeader', '<sid>MoveToPreviousHeader')
|
|
call <sid>MapNormVis('<Plug>Markdown_MoveToNextSiblingHeader', '<sid>MoveToNextSiblingHeader')
|
|
call <sid>MapNormVis('<Plug>Markdown_MoveToPreviousSiblingHeader', '<sid>MoveToPreviousSiblingHeader')
|
|
call <sid>MapNormVis('<Plug>Markdown_MoveToParentHeader', '<sid>MoveToParentHeader')
|
|
call <sid>MapNormVis('<Plug>Markdown_MoveToCurHeader', '<sid>MoveToCurHeader')
|
|
nnoremap <Plug>Markdown_OpenUrlUnderCursor :call <sid>OpenUrlUnderCursor()<cr>
|
|
nnoremap <Plug>Markdown_EditUrlUnderCursor :call <sid>EditUrlUnderCursor()<cr>
|
|
|
|
if !get(g:, 'vim_markdown_no_default_key_mappings', 0)
|
|
call <sid>MapNotHasmapto(']]', 'Markdown_MoveToNextHeader')
|
|
call <sid>MapNotHasmapto('[[', 'Markdown_MoveToPreviousHeader')
|
|
call <sid>MapNotHasmapto('][', 'Markdown_MoveToNextSiblingHeader')
|
|
call <sid>MapNotHasmapto('[]', 'Markdown_MoveToPreviousSiblingHeader')
|
|
call <sid>MapNotHasmapto(']u', 'Markdown_MoveToParentHeader')
|
|
call <sid>MapNotHasmapto(']c', 'Markdown_MoveToCurHeader')
|
|
call <sid>MapNotHasmapto('gx', 'Markdown_OpenUrlUnderCursor')
|
|
call <sid>MapNotHasmapto('ge', 'Markdown_EditUrlUnderCursor')
|
|
endif
|
|
|
|
command! -buffer -range=% HeaderDecrease call s:HeaderDecrease(<line1>, <line2>)
|
|
command! -buffer -range=% HeaderIncrease call s:HeaderDecrease(<line1>, <line2>, 1)
|
|
command! -buffer -range=% SetexToAtx call s:SetexToAtx(<line1>, <line2>)
|
|
command! -buffer TableFormat call s:TableFormat()
|
|
command! -buffer Toc call s:Toc()
|
|
command! -buffer Toch call s:Toc('horizontal')
|
|
command! -buffer Tocv call s:Toc('vertical')
|
|
command! -buffer Toct call s:Toc('tab')
|
|
|
|
" Heavily based on vim-notes - http://peterodding.com/code/vim/notes/
|
|
if exists('g:vim_markdown_fenced_languages')
|
|
let s:filetype_dict = {}
|
|
for s:filetype in g:vim_markdown_fenced_languages
|
|
let key = matchstr(s:filetype, "[^=]*")
|
|
let val = matchstr(s:filetype, "[^=]*$")
|
|
let s:filetype_dict[key] = val
|
|
endfor
|
|
else
|
|
let s:filetype_dict = {
|
|
\ 'c++': 'cpp',
|
|
\ 'viml': 'vim',
|
|
\ 'bash': 'sh',
|
|
\ 'ini': 'dosini'
|
|
\ }
|
|
endif
|
|
|
|
function! s:MarkdownHighlightSources(force)
|
|
" Syntax highlight source code embedded in notes.
|
|
" Look for code blocks in the current file
|
|
let filetypes = {}
|
|
for line in getline(1, '$')
|
|
let ft = matchstr(line, '```\s*\zs[0-9A-Za-z_+-]*')
|
|
if !empty(ft) && ft !~ '^\d*$' | let filetypes[ft] = 1 | endif
|
|
endfor
|
|
if !exists('b:mkd_known_filetypes')
|
|
let b:mkd_known_filetypes = {}
|
|
endif
|
|
if !exists('b:mkd_included_filetypes')
|
|
" set syntax file name included
|
|
let b:mkd_included_filetypes = {}
|
|
endif
|
|
if !a:force && (b:mkd_known_filetypes == filetypes || empty(filetypes))
|
|
return
|
|
endif
|
|
|
|
" Now we're ready to actually highlight the code blocks.
|
|
let startgroup = 'mkdCodeStart'
|
|
let endgroup = 'mkdCodeEnd'
|
|
for ft in keys(filetypes)
|
|
if a:force || !has_key(b:mkd_known_filetypes, ft)
|
|
if has_key(s:filetype_dict, ft)
|
|
let filetype = s:filetype_dict[ft]
|
|
else
|
|
let filetype = ft
|
|
endif
|
|
let group = 'mkdSnippet' . toupper(substitute(filetype, "[+-]", "_", "g"))
|
|
if !has_key(b:mkd_included_filetypes, filetype)
|
|
let include = s:SyntaxInclude(filetype)
|
|
let b:mkd_included_filetypes[filetype] = 1
|
|
else
|
|
let include = '@' . toupper(filetype)
|
|
endif
|
|
let command = 'syntax region %s matchgroup=%s start="^\s*```\s*%s$" matchgroup=%s end="\s*```$" keepend contains=%s%s'
|
|
execute printf(command, group, startgroup, ft, endgroup, include, has('conceal') && get(g:, 'vim_markdown_conceal', 1) && get(g:, 'vim_markdown_conceal_code_blocks', 1) ? ' concealends' : '')
|
|
execute printf('syntax cluster mkdNonListItem add=%s', group)
|
|
|
|
let b:mkd_known_filetypes[ft] = 1
|
|
endif
|
|
endfor
|
|
endfunction
|
|
|
|
function! s:SyntaxInclude(filetype)
|
|
" Include the syntax highlighting of another {filetype}.
|
|
let grouplistname = '@' . toupper(a:filetype)
|
|
" Unset the name of the current syntax while including the other syntax
|
|
" because some syntax scripts do nothing when "b:current_syntax" is set
|
|
if exists('b:current_syntax')
|
|
let syntax_save = b:current_syntax
|
|
unlet b:current_syntax
|
|
endif
|
|
try
|
|
execute 'syntax include' grouplistname 'syntax/' . a:filetype . '.vim'
|
|
execute 'syntax include' grouplistname 'after/syntax/' . a:filetype . '.vim'
|
|
catch /E484/
|
|
" Ignore missing scripts
|
|
endtry
|
|
" Restore the name of the current syntax
|
|
if exists('syntax_save')
|
|
let b:current_syntax = syntax_save
|
|
elseif exists('b:current_syntax')
|
|
unlet b:current_syntax
|
|
endif
|
|
return grouplistname
|
|
endfunction
|
|
|
|
|
|
function! s:MarkdownRefreshSyntax(force)
|
|
if &filetype =~ 'markdown' && line('$') > 1
|
|
call s:MarkdownHighlightSources(a:force)
|
|
endif
|
|
endfunction
|
|
|
|
function! s:MarkdownClearSyntaxVariables()
|
|
if &filetype =~ 'markdown'
|
|
unlet! b:mkd_included_filetypes
|
|
endif
|
|
endfunction
|
|
|
|
augroup Mkd
|
|
" These autocmd calling s:MarkdownRefreshSyntax need to be kept in sync with
|
|
" the autocmds calling s:MarkdownSetupFolding in after/ftplugin/markdown.vim.
|
|
autocmd! * <buffer>
|
|
autocmd BufWinEnter <buffer> call s:MarkdownRefreshSyntax(1)
|
|
autocmd BufUnload <buffer> call s:MarkdownClearSyntaxVariables()
|
|
autocmd BufWritePost <buffer> call s:MarkdownRefreshSyntax(0)
|
|
autocmd InsertEnter,InsertLeave <buffer> call s:MarkdownRefreshSyntax(0)
|
|
autocmd CursorHold,CursorHoldI <buffer> call s:MarkdownRefreshSyntax(0)
|
|
augroup END
|