diff options
Diffstat (limited to 'usr.bin/lex/yylex.c')
| -rw-r--r-- | usr.bin/lex/yylex.c | 218 |
1 files changed, 0 insertions, 218 deletions
diff --git a/usr.bin/lex/yylex.c b/usr.bin/lex/yylex.c deleted file mode 100644 index e90c5d4fee0a..000000000000 --- a/usr.bin/lex/yylex.c +++ /dev/null @@ -1,218 +0,0 @@ -/* yylex - scanner front-end for flex */ - -/*- - * Copyright (c) 1990 The Regents of the University of California. - * All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Vern Paxson. - * - * The United States Government has rights in this work pursuant - * to contract no. DE-AC03-76SF00098 between the United States - * Department of Energy and the University of California. - * - * Redistribution and use in source and binary forms are permitted provided - * that: (1) source distributions retain this entire copyright notice and - * comment, and (2) distributions including binaries display the following - * acknowledgement: ``This product includes software developed by the - * University of California, Berkeley and its contributors'' in the - * documentation or other materials provided with the distribution and in - * all advertising materials mentioning features or use of this software. - * Neither the name of the University nor the names of its contributors may - * be used to endorse or promote products derived from this software without - * specific prior written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - */ - -/* $Header: /home/daffy/u0/vern/flex/RCS/yylex.c,v 2.13 95/03/04 16:10:41 vern Exp $ */ -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <ctype.h> -#include "flexdef.h" -#include "parse.h" - - -/* yylex - scan for a regular expression token */ - -int yylex() - { - int toktype; - static int beglin = false; - extern char *yytext; - - if ( eofseen ) - toktype = EOF; - else - toktype = flexscan(); - - if ( toktype == EOF || toktype == 0 ) - { - eofseen = 1; - - if ( sectnum == 1 ) - { - synerr( _( "premature EOF" ) ); - sectnum = 2; - toktype = SECTEND; - } - - else - toktype = 0; - } - - if ( trace ) - { - if ( beglin ) - { - fprintf( stderr, "%d\t", num_rules + 1 ); - beglin = 0; - } - - switch ( toktype ) - { - case '<': - case '>': - case '^': - case '$': - case '"': - case '[': - case ']': - case '{': - case '}': - case '|': - case '(': - case ')': - case '-': - case '/': - case '\\': - case '?': - case '.': - case '*': - case '+': - case ',': - (void) putc( toktype, stderr ); - break; - - case '\n': - (void) putc( '\n', stderr ); - - if ( sectnum == 2 ) - beglin = 1; - - break; - - case SCDECL: - fputs( "%s", stderr ); - break; - - case XSCDECL: - fputs( "%x", stderr ); - break; - - case SECTEND: - fputs( "%%\n", stderr ); - - /* We set beglin to be true so we'll start - * writing out numbers as we echo rules. - * flexscan() has already assigned sectnum. - */ - if ( sectnum == 2 ) - beglin = 1; - - break; - - case NAME: - fprintf( stderr, "'%s'", nmstr ); - break; - - case CHAR: - switch ( yylval ) - { - case '<': - case '>': - case '^': - case '$': - case '"': - case '[': - case ']': - case '{': - case '}': - case '|': - case '(': - case ')': - case '-': - case '/': - case '\\': - case '?': - case '.': - case '*': - case '+': - case ',': - fprintf( stderr, "\\%c", - yylval ); - break; - - default: - if ( ! isascii( yylval ) || - ! isprint( yylval ) ) - fprintf( stderr, - "\\%.3o", - (unsigned int) yylval ); - else - (void) putc( yylval, - stderr ); - break; - } - - break; - - case NUMBER: - fprintf( stderr, "%d", yylval ); - break; - - case PREVCCL: - fprintf( stderr, "[%d]", yylval ); - break; - - case EOF_OP: - fprintf( stderr, "<<EOF>>" ); - break; - - case OPTION_OP: - fprintf( stderr, "%s ", yytext ); - break; - - case OPT_OUTFILE: - case OPT_PREFIX: - case CCE_ALNUM: - case CCE_ALPHA: - case CCE_BLANK: - case CCE_CNTRL: - case CCE_DIGIT: - case CCE_GRAPH: - case CCE_LOWER: - case CCE_PRINT: - case CCE_PUNCT: - case CCE_SPACE: - case CCE_UPPER: - case CCE_XDIGIT: - fprintf( stderr, "%s", yytext ); - break; - - case 0: - fprintf( stderr, _( "End Marker\n" ) ); - break; - - default: - fprintf( stderr, - _( "*Something Weird* - tok: %d val: %d\n" ), - toktype, yylval ); - break; - } - } - - return toktype; - } |