re-enterant flex scanner

"Amnon Cohen" <>
16 Nov 1999 23:49:23 -0500

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From: "Amnon Cohen" <>
Newsgroups: comp.compilers
Date: 16 Nov 1999 23:49:23 -0500
Organization: NetVision Israel
Keywords: lex, question

What is the easiest way to write a re-entrant scanner using flex?
The C++ mode provides reentrancy, but not parsing from a string
(yy_scan_buffer) which I need.

What is best, to generate a C scanner, and hack the generated code
to make it re-entrant, or generate a C++ scanner, and retrofit the code
for yy_scan_buffer?

Please cc any suggestions to me at

- Amnon Cohen

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