Allow underscore in highlighter language

meihaoGit · Sep 19, 2016 · 0b94cf3 · 0b94cf3
1 parent 7a9427c
commit 0b94cf3
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diff --git a/lib/jekyll/tags/highlight.rb b/lib/jekyll/tags/highlight.rb
@@ -8,7 +8,7 @@ class HighlightBlock < Liquid::Block
       # forms: name, name=value, or name="<quoted list>"
       #
       # <quoted list> is a space-separated list of numbers
-      SYNTAX = %r!^([a-zA-Z0-9.+#-]+)((\s+\w+(=(\w+|"([0-9]+\s)*[0-9]+"))?)*)$!
+      SYNTAX = %r!^([a-zA-Z0-9.+#_-]+)((\s+\w+(=(\w+|"([0-9]+\s)*[0-9]+"))?)*)$!
 
       def initialize(tag_name, markup, tokens)
         super

diff --git a/test/test_tags.rb b/test/test_tags.rb
@@ -59,6 +59,7 @@ def highlight_block_with_opts(options_string)
       assert_match r, "xml+cheetah"
       assert_match r, "x.y"
       assert_match r, "coffee-script"
+      assert_match r, "shell_session"
 
       refute_match r, "blah^"