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-rw-r--r--pygments/lexers/compiled.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/pygments/lexers/compiled.py b/pygments/lexers/compiled.py
index bd8fbc26..68160d81 100644
--- a/pygments/lexers/compiled.py
+++ b/pygments/lexers/compiled.py
@@ -1340,6 +1340,9 @@ class GLShaderLexer(RegexLexer):
}
class PrologLexer(RegexLexer):
+ """
+ Lexer for Prolog files.
+ """
name = 'Prolog'
aliases = ['prolog']
filenames = ['*.prolog', '*.pro', '*.pl']