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      1 /* itbl-lex.l
      2    Copyright (C) 1997-2016 Free Software Foundation, Inc.
      3 
      4    This file is part of GAS, the GNU Assembler.
      5 
      6    GAS is free software; you can redistribute it and/or modify
      7    it under the terms of the GNU General Public License as published by
      8    the Free Software Foundation; either version 3, or (at your option)
      9    any later version.
     10 
     11    GAS is distributed in the hope that it will be useful,
     12    but WITHOUT ANY WARRANTY; without even the implied warranty of
     13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     14    GNU General Public License for more details.
     15 
     16    You should have received a copy of the GNU General Public License
     17    along with GAS; see the file COPYING.  If not, write to the Free
     18    Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
     19    02110-1301, USA.  */
     20 
     21 %{
     22 #include "as.h"
     23 #include "itbl-lex.h"
     24 #include <itbl-parse.h>
     25 
     26 #ifdef DEBUG
     27 #define DBG(x) printf x
     28 #define MDBG(x) printf x
     29 #else
     30 #define DBG(x)
     31 #define MDBG(x)
     32 #endif
     33 
     34 int insntbl_line = 1;
     35 %}
     36 
     37 ALNUM	[A-Za-z0-9_]
     38 DIGIT	[0-9]
     39 ALPHA	[A-Za-z_]
     40 HEX	[0-9A-Fa-f]
     41 
     42 %%
     43 
     44 "creg"|"CREG" {
     45     return CREG;
     46   }
     47 "dreg"|"DREG" {
     48     return DREG;
     49   }
     50 "greg"|"GREG" {
     51     return GREG;
     52   }
     53 "immed"|"IMMED" {
     54     return IMMED;
     55   }
     56 "addr"|"ADDR" {
     57     return ADDR;
     58   }
     59 "insn"|"INSN" {
     60     return INSN;
     61   }
     62 "p"{DIGIT} {
     63     yytext[yyleng] = 0;
     64     yylval.processor = strtoul (yytext+1, 0, 0);
     65     return PNUM;
     66   }
     67 {DIGIT}+ {
     68     yytext[yyleng] = 0;
     69     yylval.num = strtoul (yytext, 0, 0);
     70     return NUM;
     71   }
     72 "0x"{HEX}+ {
     73     yytext[yyleng] = 0;
     74     yylval.num = strtoul (yytext, 0, 0);
     75     return NUM;
     76   }
     77 {ALPHA}{ALNUM}*	{
     78     yytext[yyleng] = 0;
     79     yylval.str = strdup (yytext);
     80     return ID;
     81   }
     82 ";"|"#"	{
     83     int c;
     84     while ((c = input ()) !=  EOF)
     85       {
     86         if (c ==  '\n')
     87     	{
     88     		unput (c);
     89     		break;
     90     	}
     91       }
     92   }
     93 "\n"	{
     94     insntbl_line++;
     95     MDBG (("in lex, NL = %d (x%x)\n", NL, NL));
     96     return NL;
     97   }
     98 " "|"\t" {
     99   }
    100 . {
    101     MDBG (("char = %x, %d\n", yytext[0], yytext[0]));
    102     return yytext[0];
    103   }
    104 %%
    105 
    106 #ifndef yywrap
    107 int
    108 yywrap ()
    109   {
    110     return 1;
    111   }
    112 #endif
    113