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-rw-r--r--pygments/lexers/dsls.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/pygments/lexers/dsls.py b/pygments/lexers/dsls.py
index e4ec2312..3c9ede1f 100644
--- a/pygments/lexers/dsls.py
+++ b/pygments/lexers/dsls.py
@@ -53,7 +53,8 @@ class ProtoBufLexer(RegexLexer):
bygroups(Keyword.Declaration, Text), 'message'),
(r'(enum|group|service)(\s+)',
bygroups(Keyword.Declaration, Text), 'type'),
- (r'\".*\"', String),
+ (r'\".*?\"', String),
+ (r'\'.*?\'', String),
(r'(\d+\.\d*|\.\d+|\d+)[eE][+-]?\d+[LlUu]*', Number.Float),
(r'(\d+\.\d*|\.\d+|\d+[fF])[fF]?', Number.Float),
(r'(\-?(inf|nan))\b', Number.Float),