Merge pull request #898 from jamesnvc/patch-1

Add % as single-line comment for Prolog lexer
rouge-ruby · Aug 10, 2018 · 443c6c5 · 443c6c5
2 parents 3d2dc84 + 6843831
commit 443c6c5
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diff --git a/lib/rouge/lexers/prolog.rb b/lib/rouge/lexers/prolog.rb
@@ -13,6 +13,7 @@ class Prolog < RegexLexer
       state :basic do
         rule /\s+/, Text
         rule /^#.*/, Comment::Single
+        rule /%.*/, Comment::Single
         rule /\/\*/, Comment::Multiline, :nested_comment
 
         rule /[\[\](){}|.,;!]/, Punctuation

diff --git a/spec/visual/samples/prolog b/spec/visual/samples/prolog
@@ -48,6 +48,10 @@ turing(Tape0, Tape) :-
  * This is a multiline comment.
 */
 
+% This is a single-line comment
+
+A is 1. % This is a trailing comment
+
 perform(qf, Ls, Ls, Rs, Rs) :- !.
 perform(Q0, Ls0, Ls, Rs0, Rs) :-
     symbol(Rs0, Sym, RsRest),