forked from osmocom/wireshark
34 lines
1.2 KiB
C++
34 lines
1.2 KiB
C++
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/* This file is #include'd at the top of a Lex/Flex scanner
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for use with the Lemon parser. You must have #define'd:
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LVAL name of lval variable
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LVAL_TYPE type of lval variable
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LVAL_INIT_VAL Initial value of lval variable
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*/
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/* Flex has a few routines which help us get the scanner to read
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* from a string rather than from a file. POSIX lex only provides
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* for reading from a file; any method of reading from a string
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* is inherently non-portable. Besides reading from a string,
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* we have to worry about resetting the scanner after a bad
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* parse; this too is non-portable. Combine the reset with
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* a string input, and you have major non-portability. I'll provide
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* the routines for flex here. If you really want to modify the
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* scanner and use a non-flex lex implementation, you may
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* add more ifdef's below.
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*/
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/* If we don't need yyunput, use this macro to get it out of the
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* generated C file, avoiding a compiler warning about its lack of use */
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#define YY_NO_UNPUT 1
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/* Yup, I'm using a non-standard type for lval, unlike usual lex/yacc implementations.
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* I can do so because I'm *not* using yacc, I'm using Lemon, where I have
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* more control of the interaction between scanner and parser. */
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LVAL_TYPE LVAL = LVAL_INIT_VAL;
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