'echo' => 'echomsg' on plugin init

autoload/clrzr.awk

@@ -24,6 +24,9 @@ BEGIN {
 {
 	szLine = tolower($1)
 
+	# --characters-as-bytes / -b ?
+	# --posix
+
 	# PREFIX: buf_no \t line_no \t lines_total \t
 
 	# BUF#

autoload/clrzr.vim

@@ -21,6 +21,7 @@ set cpo&vim
 " - change colors, or enable/disable, with two views into same buffer to reproduce E966
 " TODO: allowed filetypes list?
 " TODO: sign_column (bigger pls, :h sign-commands)?
+" TODO: color change operation
 
 
 " ---------------------------  CONSTANTS  ---------------------------
@@ -298,12 +299,19 @@ endfunction
 
 
 function! s:RemoveProps(n_buf, l_first, l_last)
+
+  " ENSURE THAT BUFFER STILL EXISTS
+  let l_info = getbufinfo(a:n_buf)
+  if empty(l_info) | return 0 | endif
+
+  " REMOVE TEXTPROPS FROM LINES l_first TO l_last
   let firstlast = sort([a:l_first, a:l_last], 'f')
   return prop_remove({
         \ 'bufnr': a:n_buf,
         \ 'id': 777,
         \ 'all': 1,
       \ }, firstlast[0], firstlast[1])
+
 endfunction
 
 " BUILDS TEXTPROPS (COLORS+PATTERNS) FOR THE CURRENT BUFFER
@@ -574,9 +582,17 @@ function! clrzr#Enable()
     let job_opts['noblock'] = 1
   endif
 
-  let s:awk_job = job_start(
-        \ ['awk', '-f', s:CLRZR_AWK_SCRIPT_PATH],
-        \ job_opts)
+	let l:awk_cmd = ['awk']
+	if executable('gawk')
+		let l:awk_cmd = ['gawk', '--posix']
+	elseif executable('mawk')
+		let l:awk_cmd = ['mawk', '--posix', '-W', 'interactive']
+	elseif executable('goawk')
+		let l:awk_cmd = ['goawk']
+	endif
+	call extend(l:awk_cmd, ['-f', s:CLRZR_AWK_SCRIPT_PATH])
+
+  let s:awk_job = job_start(l:awk_cmd, job_opts)
 
   " NOTE: string(chan) == 'channel fail' is error
   let s:awk_chan = job_getchannel(s:awk_job)

plugin/clrzr.vim

@@ -1,30 +1,29 @@
-" clrzr.vim	Colorize all text in the form #rrggbb or #rgb; entrance
-" Licence:	Vim license. See ':help license'
-" Maintainer:   Jason Stewart <support@eggplantsd.com>
-" Derived From:	https://github.com/lilydjwg/colorizer
-"               lilydjwg <lilydjwg@gmail.com>
-" Derived From: css_color.vim
-" 		http://www.vim.org/scripts/script.php?script_id=2150
-" Thanks To:	Niklas Hofer (Author of css_color.vim), Ingo Karkat, rykka,
-"		KrzysztofUrban, blueyed, shanesmith, UncleBill
-" Usage:
+" clrzr.vim       Colorize all text in the form #rrggbb or #rgb; entrance
+" Licence:        Vim license. See ':help license'
+" Maintainer:     Jason Stewart <support@eggplantsd.com>
+" Derived From:   https://github.com/lilydjwg/colorizer (lilydjwg <lilydjwg@gmail.com>)
+" Derived From:   http://www.vim.org/scripts/script.php?script_id=2150 (css_color.vim)
+" Thanks To:      Niklas Hofer (Author of css_color.vim), Ingo Karkat, rykka,
+"                 KrzysztofUrban, blueyed, shanesmith, UncleBill
 "
 
 " Reload guard and 'compatible' handling
 if exists("loaded_clrzr") | finish | endif
 
 if !has('textprop')
-  echoerr 'clrzr disabled: +textprop Vim feature not found'
+  autocmd VimEnter * echomsg 'clrzr disabled: +textprop Vim feature not found'
   finish
 endif
 
-if !(has('termguicolors') && &termguicolors)
-  echoerr 'clrzr disabled: termguicolors not enabled and/or available'
-  finish
+if !has('gui_running')
+  if !(has('termguicolors') && &termguicolors)
+    autocmd VimEnter * echomsg 'clrzr disabled: termguicolors not enabled and/or available'
+    finish
+  endif
 endif
 
 if !exists('##TextChanged')
-  echoerr 'clrzr disabled: TextChanged autocmd not found'
+  autocmd VimEnter * echomsg 'clrzr disabled: TextChanged autocmd not found'
   finish
 endif