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FLEX.ARC
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FLEXSCOM.H
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Wrap
C/C++ Source or Header
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1988-10-09
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2KB
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89 lines
/* common macro definitions for C/FTL programs generated by flex */
/* returned upon end-of-file */
#define YY_END_TOK 0
/* action number for an "end-of-file was seen and yywrap indicated that we
* should continue processing"
*/
#define YY_NEW_FILE -1
/* action number for "the default action should be done" */
#define YY_DO_DEFAULT -2
#ifndef BUFSIZ
#include <stdio.h>
#endif
#define YY_BUF_SIZE (BUFSIZ * 2) /* size of input buffer */
/* number of characters one rule can match. One less than YY_BUF_SIZE to make
* sure we never access beyond the end of an array
*/
#define YY_BUF_MAX (YY_BUF_SIZE - 1)
/* we will never use more than the first YY_BUF_LIM + YY_MAX_LINE positions
* of the input buffer
*/
#ifndef YY_MAX_LINE
#define YY_MAX_LINE BUFSIZ
#endif
#define YY_BUF_LIM (YY_BUF_MAX - YY_MAX_LINE)
/* copy whatever the last rule matched to the standard output */
#define ECHO fputs( yytext, yyout )
/* gets input and stuffs it into "buf". number of characters read, or YY_NULL,
* is returned in "result".
*/
#define YY_INPUT(buf,result,max_size) \
if ( (result = read( fileno(yyin), buf, max_size )) < 0 ) \
YY_FATAL_ERROR( "read() in flex scanner failed" );
#define YY_NULL 0
/* macro used to output a character */
#define YY_OUTPUT(c) putc( c, yyout );
/* report a fatal error */
#define YY_FATAL_ERROR(msg) \
{ \
fputs( msg, stderr ); \
putc( '\n', stderr ); \
exit( 1 ); \
}
/* returns the first character of the matched text */
#define YY_FIRST_CHAR yy_ch_buf[yy_b_buf_p]
/* default yywrap function - always treat EOF as an EOF */
#define yywrap() 1
/* enter a start condition. This macro really ought to take a parameter,
* but we do it the disgusting crufty way that old Unix-lex does it
*/
#define BEGIN yy_start = 1 +
/* callable from YY_INPUT to set things up so that '%' will match. Proper
* usage is "YY_SET_BOL(array,pos)"
*/
#define YY_SET_BOL(array,pos) array[pos - 1] = '\n';
/* default declaration of generated scanner - a define so the user can
* easily add parameters
*/
#define YY_DECL int yylex()
/* return all but the first 'n' matched characters back to the input stream */
#define yyless(n) \
{ \
YY_DO_BEFORE_SCAN; /* undo effects of setting up yytext */ \
yy_c_buf_p = yy_b_buf_p + n - 1; \
YY_DO_BEFORE_ACTION; /* set up yytext again */ \
}
/* code executed at the end of each rule */
#define YY_BREAK break;