115 lines
2.1 KiB
Plaintext
115 lines
2.1 KiB
Plaintext
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/* itbl-lex.l
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Copyright (C) 1997 Free Software Foundation, Inc.
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This file is part of GAS, the GNU Assembler.
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GAS is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GAS is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GAS; see the file COPYING. If not, write to the Free
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Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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%{
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include "itbl-parse.h"
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#ifdef DEBUG
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#define DBG(x) printf x
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#define MDBG(x) printf x
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#else
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#define DBG(x)
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#define MDBG(x)
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#endif
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int insntbl_line = 1;
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%}
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ALNUM [A-Za-z0-9_]
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DIGIT [0-9]
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ALPHA [A-Za-z_]
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HEX [0-9A-Fa-f]
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%%
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"creg"|"CREG" {
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return CREG;
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}
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"dreg"|"DREG" {
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return DREG;
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}
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"greg"|"GREG" {
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return GREG;
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}
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"immed"|"IMMED" {
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return IMMED;
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}
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"addr"|"ADDR" {
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return ADDR;
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}
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"insn"|"INSN" {
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return INSN;
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}
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"p"{DIGIT} {
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yytext[yyleng] = 0;
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yylval.processor = strtoul (yytext+1, 0, 0);
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return PNUM;
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}
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{DIGIT}+ {
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yytext[yyleng] = 0;
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yylval.num = strtoul (yytext, 0, 0);
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return NUM;
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}
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"0x"{HEX}+ {
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yytext[yyleng] = 0;
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yylval.num = strtoul (yytext, 0, 0);
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return NUM;
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}
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{ALPHA}{ALNUM}* {
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yytext[yyleng] = 0;
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yylval.str = strdup (yytext);
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return ID;
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}
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";"|"#" {
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int c;
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while ((c = input ()) != EOF)
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{
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if (c == '\n')
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{
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unput (c);
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break;
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}
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}
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}
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"\n" {
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insntbl_line++;
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MDBG (("in lex, NL = %d (x%x)\n", NL, NL));
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return NL;
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}
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" "|"\t" {
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}
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. {
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MDBG (("char = %x, %d\n", yytext[0], yytext[0]));
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return yytext[0];
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}
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%%
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#ifndef yywrap
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int
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yywrap ()
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{
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return 1;
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}
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#endif
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