1 files changed, 33 insertions, 0 deletions
diff --git a/autoload/spectral/highlight.vim b/autoload/spectral/highlight.vim
new file mode 100644
index 0000000..6bbde34
--- /dev/null
+++ b/autoload/spectral/highlight.vim
@@ -0,0 +1,33 @@
+let s:done = {}
+
+function! spectral#highlight#highlight() abort
+  %s/#[a-fA-F0-9]\{6}/\=spectral#highlight#highlightOne(submatch(0))/g
+endfunction
+
+function! spectral#highlight#highlightLine() abort
+  let curpos = getcurpos()
+  silent! '[,']s/#[a-fA-F0-9]\{6}/\=spectral#highlight#highlightOne(submatch(0))/g
+  call cursor(curpos[1:])
+endfunction
+
+function! spectral#highlight#highlightOne(match) abort
+  let match = a:match
+  let nohash = match[1:]
+
+  if has_key(s:done, match)
+    return a:match
+  else
+    let s:done[match] = 1
+  endif
+
+  exec printf("syn match %s +%s+ containedIn=vimComment,vim9Comment,vimString,vimIsCommand,vimHiGuiRgb", nohash, match)
+  exec printf("hi %s guifg=#000000 guibg=%s", nohash, match)
+
+  " Return exactly what was put in. We only care about the side effets.
+  return a:match
+endfunction
+
+function! spectral#highlight#clearCache() abort
+  let s:done = {}
+  call spectral#highlight#highlight()
+endfunction