Enable showing code block markers

Fixes #107

Author: xolox

README.md

@@ -128,7 +128,7 @@ The `:NoteToHtml` command requires the [Markdown] [markdown] program. By default
 
 ### The `g:notes_conceal_code` option
 
-By default the backticks that mark inline code snippets are hidden when your version of Vim supports concealing of text. By setting this option to zero you stop vim-notes from hiding those backticks. In the following example, the backticks would be visible in the editor when this option is set to zero:
+By default the backticks that mark inline code snippets and the curly quotes that mark code blocks are hidden when your version of Vim supports concealing of text. By setting this option to zero you stop vim-notes from hiding these markers. For example in the following sentence, the backticks would be visible in the editor when this option is set to zero:
 
     This is a sentence with an `inline code` fragment.
 

autoload/xolox/notes.vim

@@ -1,12 +1,12 @@
 " Vim auto-load script
 " Author: Peter Odding <peter@peterodding.com>
-" Last Change: March 15, 2015
+" Last Change: April 1, 2015
 " URL: http://peterodding.com/code/vim/notes/
 
 " Note: This file is encoded in UTF-8 including a byte order mark so
 " that Vim loads the script using the right encoding transparently.
 
-let g:xolox#notes#version = '0.32'
+let g:xolox#notes#version = '0.33'
 let g:xolox#notes#url_pattern = '\<\(mailto:\|javascript:\|\w\{3,}://\)\(\S*\w\)\+/\?'
 let s:scriptdir = expand('<sfile>:p:h')
 
@@ -1180,8 +1180,9 @@ function! xolox#notes#highlight_sources(force) " {{{3
       let group = 'notesSnippet' . toupper(ft)
       let include = s:syntax_include(ft)
       for [startmarker, endmarker] in [['{{{', '}}}'], ['```', '```']]
+        let conceal = has('conceal') && xolox#misc#option#get('notes_conceal_code', 1)
         let command = 'syntax region %s matchgroup=%s start="%s%s \?" matchgroup=%s end="%s" keepend contains=%s%s'
-        execute printf(command, group, startgroup, startmarker, ft, endgroup, endmarker, include, has('conceal') ? ' concealends' : '')
+        execute printf(command, group, startgroup, startmarker, ft, endgroup, endmarker, include, conceal ? ' concealends' : '')
       endfor
     endfor
     if &vbs >= 1

doc/notes.txt

@@ -335,10 +335,11 @@ of the program.
 -------------------------------------------------------------------------------
 The *g:notes_conceal_code* option
 
-By default the backticks that mark inline code snippets are hidden when your
-version of Vim supports concealing of text. By setting this option to zero you
-stop vim-notes from hiding those backticks. In the following example, the
-backticks would be visible in the editor when this option is set to zero:
+By default the backticks that mark inline code snippets and the curly quotes
+that mark code blocks are hidden when your version of Vim supports concealing
+of text. By setting this option to zero you stop vim-notes from hiding these
+markers. For example in the following sentence, the backticks would be visible
+in the editor when this option is set to zero:
 >
   This is a sentence with an `inline code` fragment.
 <