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warning to stderr, not stdout

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See PR 11691
  Merge to release branch
(cherry picked from commit fd3595e7d3)
This commit is contained in:
Ryan Culpepper 2011-02-01 16:32:34 -07:00 committed by Eli Barzilay
parent 8c312b3181
commit 6b121cdce6
1 changed files with 1 additions and 1 deletions
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2
collects/parser-tools/lex.rkt
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@ -113,7 +113,7 @@
(let ((next-check (vector-ref next 1)))
(or (>= next-check max-char-num)
(loop (add1 next-check) (cdr nexts))))))))))
(printf "Warning: lexer at ~a can accept the empty string.\n" stx)))
(eprintf "Warning: lexer at ~a can accept the empty string.\n" stx)))
(with-syntax ((start-state-stx start)
(trans-table-stx trans)
(no-lookahead-stx no-look)