176 lines
4.8 KiB
Plaintext
176 lines
4.8 KiB
Plaintext
%{
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/*-
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* Copyright (c) 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Paul Borman at Krystal Technologies.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)lex.l 8.1 (Berkeley) 6/6/93";
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#endif
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#endif /* not lint */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <ctype.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "ldef.h"
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#include "y.tab.h"
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#include "extern.h"
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#define YY_DECL int yylex(void)
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%}
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ODIGIT [0-7]
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DIGIT [0-9]
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XDIGIT [0-9a-fA-F]
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W [\t\n\r ]
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%%
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\'.\' { yylval.rune = (unsigned char)yytext[1];
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return(RUNE); }
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'\\a' { yylval.rune = '\a';
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return(RUNE); }
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'\\b' { yylval.rune = '\b';
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return(RUNE); }
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'\\f' { yylval.rune = '\f';
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return(RUNE); }
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'\\n' { yylval.rune = '\n';
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return(RUNE); }
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'\\r' { yylval.rune = '\r';
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return(RUNE); }
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'\\t' { yylval.rune = '\t';
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return(RUNE); }
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'\\v' { yylval.rune = '\v';
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return(RUNE); }
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0x{XDIGIT}+ { yylval.rune = strtol(yytext, 0, 16);
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return(RUNE); }
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0{ODIGIT}+ { yylval.rune = strtol(yytext, 0, 8);
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return(RUNE); }
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{DIGIT}+ { yylval.rune = strtol(yytext, 0, 10);
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return(RUNE); }
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MAPLOWER { return(MAPLOWER); }
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MAPUPPER { return(MAPUPPER); }
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TODIGIT { return(DIGITMAP); }
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INVALID { return(INVALID); }
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ALPHA { yylval.i = _CTYPE_A|_CTYPE_R|_CTYPE_G;
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return(LIST); }
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CONTROL { yylval.i = _CTYPE_C;
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return(LIST); }
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DIGIT { yylval.i = _CTYPE_D|_CTYPE_R|_CTYPE_G;
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return(LIST); }
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GRAPH { yylval.i = _CTYPE_G|_CTYPE_R;
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return(LIST); }
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LOWER { yylval.i = _CTYPE_L|_CTYPE_R|_CTYPE_G;
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return(LIST); }
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PUNCT { yylval.i = _CTYPE_P|_CTYPE_R|_CTYPE_G;
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return(LIST); }
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SPACE { yylval.i = _CTYPE_S;
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return(LIST); }
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UPPER { yylval.i = _CTYPE_U|_CTYPE_R|_CTYPE_G;
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return(LIST); }
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XDIGIT { yylval.i = _CTYPE_X|_CTYPE_R|_CTYPE_G;
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return(LIST); }
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BLANK { yylval.i = _CTYPE_B;
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return(LIST); }
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PRINT { yylval.i = _CTYPE_R;
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return(LIST); }
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IDEOGRAM { yylval.i = _CTYPE_I|_CTYPE_R|_CTYPE_G;
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return(LIST); }
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SPECIAL { yylval.i = _CTYPE_T|_CTYPE_R|_CTYPE_G;
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return(LIST); }
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PHONOGRAM { yylval.i = _CTYPE_Q|_CTYPE_R|_CTYPE_G;
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return(LIST); }
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SWIDTH0 { yylval.i = _CTYPE_SW0; return(LIST); }
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SWIDTH1 { yylval.i = _CTYPE_SW1; return(LIST); }
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SWIDTH2 { yylval.i = _CTYPE_SW2; return(LIST); }
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SWIDTH3 { yylval.i = _CTYPE_SW3; return(LIST); }
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VARIABLE[\t ] { static char vbuf[1024];
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char *v = vbuf;
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while ((*v = input()) && *v != '\n')
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++v;
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if (*v) {
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unput(*v);
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*v = 0;
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}
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yylval.str = vbuf;
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return(VARIABLE);
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}
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ENCODING { return(ENCODING); }
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\".*\" { char *e = yytext + 1;
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yylval.str = e;
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while (*e && *e != '"')
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++e;
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*e = 0;
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return(STRING); }
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\<|\(|\[ { return(LBRK); }
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\>|\)|\] { return(RBRK); }
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\- { return(THRU); }
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\.\.\. { return(THRU); }
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\: { return(':'); }
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{W}+ ;
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^\#.*\n ;
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\/\* { char lc = 0;
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do {
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while ((lc) != '*')
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if ((lc = input()) == 0)
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break;
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} while((lc = input()) != '/');
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}
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\\$ ;
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. { printf("Lex is skipping '%s'\n", yytext); }
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%%
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#if !defined(yywrap)
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int
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yywrap(void)
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{
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return(1);
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}
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#endif
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