The following work on normal and visual modes:
-- `]]`: go to next header. `<Plug>(Markdown_MoveToNextHeader)`
-- `[[`: go to previous header. Contrast with `]c`. `<Plug>(Markdown_MoveToPreviousHeader)`
-- `][`: go to next sibling header if any. `<Plug>(Markdown_MoveToNextSiblingHeader)`
-- `[]`: go to previous sibling header if any. `<Plug>(Markdown_MoveToPreviousSiblingHeader)`
-- `]c`: go to Current header. `<Plug>(Markdown_MoveToCurHeader)`
-- `]u`: go to parent header (Up). `<Plug>(Markdown_MoveToParentHeader)`
+- `gx`: open the link under the cursor in the same browser as the standard `gx` command.
+
+ The standard `gx` is extended by allowing you to put your cursor anywhere inside a link.
+
+ For example, all the following cursor positions will work:
+
+ [Example](http://example.com)
+ ^ ^ ^^ ^ ^
+ 1 2 34 5 6
+
+ <http://example.com>
+ ^ ^ ^
+ 1 2 3
+
+ Known limitation: does not work for links that span multiple lines.
+
+- `]]`: go to next header. `<Plug>(Markdown_MoveToNextHeader)`
+
+- `[[`: go to previous header. Contrast with `]c`. `<Plug>(Markdown_MoveToPreviousHeader)`
+
+- `][`: go to next sibling header if any. `<Plug>(Markdown_MoveToNextSiblingHeader)`
+
+- `[]`: go to previous sibling header if any. `<Plug>(Markdown_MoveToPreviousSiblingHeader)`
+
+- `]c`: go to Current header. `<Plug>(Markdown_MoveToCurHeader)`
+
+- `]u`: go to parent header (Up). `<Plug>(Markdown_MoveToParentHeader)`
## Commands
call setpos('.', l:pos)
endfunction
+" Parameters:
+"
+" - step +1 for right, -1 for left
+"
+" TODO: multiple lines.
+"
+function! s:FindCornerOfSyntax(lnum, col, step)
+ let l:col = a:col
+ let l:syn = synIDattr(synID(a:lnum, l:col, 1), 'name')
+ while synIDattr(synID(a:lnum, l:col, 1), 'name') ==# l:syn
+ let l:col += a:step
+ endwhile
+ return l:col - a:step
+endfunction
+
+" Return the next position of the given syntax name,
+" inclusive on the given position.
+"
+" 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
+"
+" `b:` instead of `s:` to make it testable.
+"
+" TODO
+"
+" - multiline support
+" - give an error if the separator does is not on a link
+"
+function! b: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 = b:Markdown_GetUrlForPosition(line('.'), col('.'))
+ if l:url != ''
+ call netrw#NetrwBrowseX(l:url, 0)
+ else
+ echomsg 'The cursor is not on a link.'
+ endif
+endfunction
+
call <sid>MapNormVis('<Plug>(Markdown_MoveToNextHeader)', '<sid>Markdown_MoveToNextHeader')
call <sid>MapNormVis('<Plug>(Markdown_MoveToPreviousHeader)', '<sid>Markdown_MoveToPreviousHeader')
call <sid>MapNormVis('<Plug>(Markdown_MoveToNextSiblingHeader)', '<sid>Markdown_MoveToNextSiblingHeader')
call <sid>MapNormVis('<Plug>(Markdown_MoveToParentHeader)', '<sid>Markdown_MoveToParentHeader')
" Menmonic: Current
call <sid>MapNormVis('<Plug>(Markdown_MoveToCurHeader)', '<sid>Markdown_MoveToCurHeader')
+nnoremap <Plug>(OpenUrlUnderCursor) :call <sid>OpenUrlUnderCursor()<cr>
if !get(g:, 'vim_markdown_no_default_key_mappings', 0)
nmap <buffer> ]] <Plug>(Markdown_MoveToNextHeader)
nmap <buffer> [] <Plug>(Markdown_MoveToPreviousSiblingHeader)
nmap <buffer> ]u <Plug>(Markdown_MoveToParentHeader)
nmap <buffer> ]c <Plug>(Markdown_MoveToCurHeader)
+ nmap <buffer> gx <Plug>(OpenUrlUnderCursor)
vmap <buffer> ]] <Plug>(Markdown_MoveToNextHeader)
vmap <buffer> [[ <Plug>(Markdown_MoveToPreviousHeader)
+Given mkd;
+a <http://b> c
+
+Execute (gx autolink):
+ let b:url = 'http://b'
+ let b:line = getline(1)
+ AssertEqual b:Markdown_GetUrlForPosition(1, match(b:line, 'a') + 1), ''
+ AssertEqual b:Markdown_GetUrlForPosition(1, match(b:line, '<') + 1), b:url
+ AssertEqual b:Markdown_GetUrlForPosition(1, match(b:line, 'h') + 1), b:url
+ AssertEqual b:Markdown_GetUrlForPosition(1, match(b:line, '>') + 1), b:url
+ AssertEqual b:Markdown_GetUrlForPosition(1, match(b:line, 'c') + 1), ''
+
+Given mkd;
+a http://b.bb c
+
+Execute (gx implicit autolink):
+ let b:url = 'http://b.bb'
+ let b:line = getline(1)
+ AssertEqual b:Markdown_GetUrlForPosition(1, match(b:line, 'a') + 1), ''
+ AssertEqual b:Markdown_GetUrlForPosition(1, match(b:line, 'h') + 1), b:url
+ AssertEqual b:Markdown_GetUrlForPosition(1, match(b:line, 'c') + 1), ''
+
+Given mkd;
+[a]: http://b "c"
+
+Execute (gx link reference definition):
+ let b:url = 'http://b'
+ let b:line = getline(1)
+ " TODO would be cool if all of the following gave the link.
+ AssertEqual b:Markdown_GetUrlForPosition(1, match(b:line, 'a') + 1), ''
+ AssertEqual b:Markdown_GetUrlForPosition(1, match(b:line, 'h') + 1), b:url
+ AssertEqual b:Markdown_GetUrlForPosition(1, match(b:line, 'c') + 1), ''
+
+Given mkd;
+a [b](c) d
+
+Execute (gx autolink):
+ let b:url = 'c'
+ let b:line = getline(1)
+ AssertEqual b:Markdown_GetUrlForPosition(1, match(b:line, 'a') + 1), ''
+ AssertEqual b:Markdown_GetUrlForPosition(1, match(b:line, '[') + 1), b:url
+ AssertEqual b:Markdown_GetUrlForPosition(1, match(b:line, 'b') + 1), b:url
+ AssertEqual b:Markdown_GetUrlForPosition(1, match(b:line, ']') + 1), b:url
+ AssertEqual b:Markdown_GetUrlForPosition(1, match(b:line, '(') + 1), b:url
+ AssertEqual b:Markdown_GetUrlForPosition(1, match(b:line, 'c') + 1), b:url
+ AssertEqual b:Markdown_GetUrlForPosition(1, match(b:line, ')') + 1), b:url
+ AssertEqual b:Markdown_GetUrlForPosition(1, match(b:line, 'd') + 1), ''
+
Given mkd;
# a