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-rw-r--r--pygments/lexers/agile.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/pygments/lexers/agile.py b/pygments/lexers/agile.py
index 30b70c1d..a49289dc 100644
--- a/pygments/lexers/agile.py
+++ b/pygments/lexers/agile.py
@@ -2211,7 +2211,7 @@ class Perl6Lexer(ExtendedRegexLexer):
(r'(?<=~~)\s*/(?:\\\\|\\/|.)*?/', String.Regex),
(r'(?<=[=(,])\s*/(?:\\\\|\\/|.)*?/', String.Regex),
(r'm\w+(?=\()', Name),
- (r'(?:m|ms|rx)\s*(?P<adverbs>:[\w\s:]+)?\s*(?P<delimiter>(?P<first_char>[^0-9a-zA-Z:\s])(?P=first_char)*)', brackets_callback(String.Regex)),
+ (r'(?:m|ms|rx)\s*(?P<adverbs>:[\w\s:]+)?\s*(?P<delimiter>(?P<first_char>[^0-9a-zA-Z_:\s])(?P=first_char)*)', brackets_callback(String.Regex)),
(r'(?:s|ss|tr)\s*(?::[\w\s:]+)?\s*/(?:\\\\|\\/|.)*?/(?:\\\\|\\/|.)*?/', String.Regex),
(r'<[^\s=].*?\S>', String),
(_build_word_match(PERL6_OPERATORS), Operator),