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flexskeldef.h
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C/C++ Source or Header
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1988-10-02
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1KB
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42 lines
/* macro definitions for compressed-table C/FTL programs generated by flex */
#include "flexskelcom.h"
/* reinitializes everything except the current start condition. The last
* input character is set to a newline so an initial beginning-of-line
* rule will match
*/
#define YY_INIT \
{ \
yyleng = yy_c_buf_p = yy_e_buf_p = 0; \
yy_hold_char = yy_ch_buf[yy_c_buf_p] = '\n'; \
yytext = &yy_ch_buf[yy_c_buf_p]; \
yy_saw_eof = 0; \
}
/* returns the length of the matched text */
#define YY_LENG (yy_c_buf_p - yy_b_buf_p + 1)
/* done before the next pattern has been matched action */
#define YY_DO_BEFORE_SCAN \
yytext[yyleng] = yy_hold_char;
/* done after the current pattern has been matched and before the corresponding action */
#define YY_DO_BEFORE_ACTION \
yytext = &yy_ch_buf[yy_b_buf_p]; \
yyleng = YY_LENG; \
yy_hold_char = yytext[yyleng]; \
yytext[yyleng] = '\0';
/* find the next rule matched */
#ifdef FLEX_REJECT_ENABLED
#define REJECT \
{ \
YY_DO_BEFORE_SCAN; /* undo effects of setting up yytext */ \
++yy_lp; \
goto find_rule; \
}
#else
#define REJECT YY_FATAL_ERROR( "REJECT used and scanner was not generated using -r" )
#endif