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-rw-r--r--pygments/lexers/math.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/pygments/lexers/math.py b/pygments/lexers/math.py
index cd98a755..de30a449 100644
--- a/pygments/lexers/math.py
+++ b/pygments/lexers/math.py
@@ -2182,7 +2182,7 @@ class IgorLexer(RegexLexer):
# Compiler directives.
(r'^#(include|pragma|define|ifdef|ifndef|endif)',
Name.Decorator),
- (r'[^a-zA-Z"/]+$', Text),
+ (r'[^a-z"/]+$', Text),
(r'.', Text),
],
}