Feature: Add command VimwikiColorize (Issue #990)

Only colorize the current line to start

autoload/vimwiki/base.vim

@@ -2902,6 +2902,49 @@ function! vimwiki#base#linkify() abort
 endfunction
 
 
+function! vimwiki#base#complete_colorize(ArgLead, CmdLine, CursorPos) abort
+  " We can safely ignore args if we use -custom=complete option, Vim engine
+  " will do the job of filtering
+  let colorlist = keys(vimwiki#vars#get_wikilocal('color_dic'))
+  return join(colorlist, "\n")
+endfunction
+
+function! vimwiki#base#colorize(...) abort 
+  " TODO Must be coherent with color_tag_template
+  " -- Just removeing spaces, \/ -> /,  replacing COLORFG will do it
+  let key = a:0 ? a:1 : 'default'
+  let color_dic = vimwiki#vars#get_wikilocal('color_dic')
+
+  " Guard: color key nust exist
+  if !has_key(color_dic, key)
+    call vimwiki#u#error('color_dic variable has no key ''' . key . '''')
+    return
+  endif
+
+  " Get content
+  let content = getline('.')
+  " TODO save position for visual selection: see u#get_selection
+
+  " Surround
+  " -- pre
+  let [fg, bg] = color_dic[key]
+  let pre = '<span style="' 
+  if fg !=# ''
+    let pre .= 'color:' . fg . ';'
+  endif
+  if bg !=# ''
+    let pre .= 'background:' . bg . ';'
+  endif
+  let pre .= '">'
+  " -- post
+  let post = '</span>'
+  " -- concat
+  let content = pre . content . post
+
+  " Set buffer content
+  call setline('.', content)
+endfunction
+
 " -------------------------------------------------------------------------
 " Load syntax-specific Wiki functionality
 for s:syn in s:vimwiki_get_known_syntaxes()

autoload/vimwiki/vars.vim

@@ -451,6 +451,13 @@ endfunction
 " Get default wikilocal values
 " Please: keep alphabetical sort
 function! s:get_default_wikilocal() abort
+  " Build color_tag_template regular expression
+  " Must be coherent with VimwikiColorize
+  let fg = 'color\s*:\s*__COLORFG__\s*;\s*'
+  let bg = 'background\s*:\s*__COLORBG__\s*;\s*'
+  let color_tag_rx = '<span \s*style\s*=\s*"\s*\(' 
+        \ . fg . bg . '\|' . fg . '\|' . bg 
+        \ . '\)"\s*>__CONTENT__<\/span>'
   return {
         \ 'auto_diary_index': {'type': type(0), 'default': 0, 'min': 0, 'max': 1},
         \ 'auto_export': {'type': type(0), 'default': 0, 'min': 0, 'max': 1},
@@ -460,6 +467,23 @@ function! s:get_default_wikilocal() abort
         \ 'auto_toc': {'type': type(0), 'default': 0, 'min': 0, 'max': 1},
         \ 'automatic_nested_syntaxes': {'type': type(0), 'default': 1, 'min': 0, 'max': 1},
         \ 'base_url': {'type': type(''), 'default': '', 'min_length': 1},
+        \ 'color_dic': {'type': type({}), 'default': {
+        \   'default': ['', '#d79921'],
+        \   'red': ['#cc241d', ''],
+        \   'bred': ['', '#cc241d'],
+        \   'green': ['#98971a', ''],
+        \   'bgreen': ['', '#98971a'],
+        \   'yellow': ['#d79921', ''],
+        \   'byellow': ['', '#d79921'],
+        \   'blue': ['#458588', ''],
+        \   'bblue': ['', '#458588'],
+        \   'purple': ['#b16286', ''],
+        \   'bpurple': ['', '#b16286'],
+        \   'orange': ['#d65d0e', ''],
+        \   'borange': ['', '#d65d0e'],
+        \   'gray': ['#a89984', ''],
+        \   'bgray': ['', '#a89984']}},
+        \ 'color_tag_template': {'type': type({}), 'default': color_tag_rx},
         \ 'commentstring': {'type': type(''), 'default': '%%%s'},
         \ 'css_name': {'type': type(''), 'default': 'style.css', 'min_length': 1},
         \ 'custom_wiki2html': {'type': type(''), 'default': ''},