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original commit: c6bccdfeb3edd4367a630d46e6ba576a1c20e0f5
21 years ago · ee5e4fa155
parent 4f0bed6a2b
commit ee5e4fa155
1 changed files with 1 additions and 1 deletions
--- a/collects/parser-tools/lex-sre.ss
+++ b/collects/parser-tools/lex-sre.ss
@ -70,7 +70,7 @@
  (define-lex-trans ~
    (syntax-rules ()
      ((_ re ...)
-       (complement (union re ...)))))
+       (char-complement (union re ...)))))
  (define-lex-trans (sre-- stx)
    (syntax-case stx ()