initial commit

after/ftplugin/markdown.vim

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+" this script (markdown.vim) must be placed in ~/.vim/after/ftplugin
+" requires https://github.com/plasticboy/vim-markdown
+
+function! s:markdownGotoHeader()
+    let pos = getpos('.')
+    call search('(', 'bcW', line('.'))
+    if !search('#', 'cW', line('.'))
+        echohl ErrorMsg
+        echo 'No link found on rest of line'
+        echohl NONE
+        call setpos('.', pos)
+        return
+    endif
+    let asav = @a
+    normal! "ayib
+    let targ = @a
+    let @a = asav
+    let targ = substitute(targ, '^#\+', '', '')
+    let targ = substitute(targ, '^\s\+\|\s\+$', '', 'g')
+    if empty(targ)
+        echohl ErrorMsg
+        echo 'target is empty'
+        echohl NONE
+        call setpos('.', pos)
+        return
+    endif
+    let targ = split(targ)[0]
+    let targ = '\[[:punct:][:space:]]\*'.join(map(split(targ, '-'), { _,str -> join(map(split(str, '\zs'), { _,chr -> chr == '\' ? '\\' : chr }), '\[[:punct:]]\*') }), '\[[:punct:][:space:]]\+').'\[[:punct:][:space:]]\*'
+    let pat = '\V\c\^\%(\s\*'.targ.'\n\[-=]\|#\+\s\*'.targ.'\)'
+    let lnr = search(pat, 'cnw')
+    if lnr == 0
+        echohl ErrorMsg
+        echo 'target /'.targ.'/ not found'
+        echohl NONE
+        call setpos('.', pos)
+        return
+    endif
+    call setpos("''", pos)
+    call setpos('.', [bufnr(), lnr, 1, 1])
+endfunction
+
+nnoremap <buffer> <silent> K :call <sid>markdownGotoHeader()<cr>
+