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      1 %{
      2 /* Copyright (C) 2004, 2005, 2007, 2008 Red Hat, Inc.
      3    Written by Ulrich Drepper <drepper (at) redhat.com>, 2004.
      4 
      5    This file is free software; you can redistribute it and/or modify
      6    it under the terms of either
      7 
      8      * the GNU Lesser General Public License as published by the Free
      9        Software Foundation; either version 3 of the License, or (at
     10        your option) any later version
     11 
     12    or
     13 
     14      * the GNU General Public License as published by the Free
     15        Software Foundation; either version 2 of the License, or (at
     16        your option) any later version
     17 
     18    or both in parallel, as here.
     19 
     20    elfutils is distributed in the hope that it will be useful, but
     21    WITHOUT ANY WARRANTY; without even the implied warranty of
     22    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     23    General Public License for more details.
     24 
     25    You should have received copies of the GNU General Public License and
     26    the GNU Lesser General Public License along with this program.  If
     27    not, see <http://www.gnu.org/licenses/>.  */
     28 
     29 #ifdef HAVE_CONFIG_H
     30 # include <config.h>
     31 #endif
     32 
     33 #include <ctype.h>
     34 #include <error.h>
     35 #include <libintl.h>
     36 
     37 #include <system.h>
     38 #include "i386_parse.h"
     39 
     40 
     41 static void eat_to_eol (void);
     42 static void invalid_char (int ch);
     43 %}
     44 
     45 ID              [a-zA-Z_][a-zA-Z0-9_/]*
     46 ID2             [a-zA-Z0-9_:/]*
     47 NUMBER		[0-9]+
     48 WHITE		[[:space:]]+
     49 
     50 %option yylineno
     51 %option never-interactive
     52 %option noyywrap
     53 
     54 
     55 %x MAIN
     56 
     57 %%
     58 
     59 "%mask"				{ return kMASK; }
     60 
     61 "%prefix"			{ return kPREFIX; }
     62 "%suffix"			{ return kSUFFIX; }
     63 
     64 "%synonym"			{ return kSYNONYM; }
     65 
     66 {NUMBER}			{ i386_lval.num = strtoul (yytext, NULL, 10);
     67 				  return kNUMBER; }
     68 
     69 "%%"				{ BEGIN (MAIN); return kPERCPERC; }
     70 
     71 
     72 <MAIN>"0"			{ return '0'; }
     73 <MAIN>"1"			{ return '1'; }
     74 
     75 <INITIAL,MAIN>"{"{ID2}"}"	{ i386_lval.str = xstrndup (yytext + 1,
     76 							    yyleng - 2);
     77 				  return kBITFIELD; }
     78 
     79 <MAIN>"INVALID"			{ i386_lval.str = (void *) -1l;
     80 				  return kID; }
     81 
     82 <MAIN>{ID}			{ i386_lval.str = xstrndup (yytext, yyleng);
     83 				  return kID; }
     84 
     85 <MAIN>","			{ return ','; }
     86 
     87 <MAIN>":"			{ return ':'; }
     88 
     89 <INITIAL,MAIN>^"\n"		{ /* IGNORE */ }
     90 
     91 <INITIAL,MAIN>"\n"		{ return '\n'; }
     92 
     93 <INITIAL,MAIN>^"#"		{ eat_to_eol (); }
     94 
     95 {WHITE}				{ /* IGNORE */ }
     96 
     97 <MAIN>{WHITE}			{ return kSPACE; }
     98 
     99 <MAIN>.				{ i386_lval.ch = *yytext; return kCHAR; }
    100 
    101 .				{ invalid_char (*yytext); }
    102 
    103 
    104 %%
    105 
    106 static void
    107 eat_to_eol (void)
    108 {
    109   while (1)
    110     {
    111       int c = input ();
    112 
    113       if (c == EOF || c == '\n')
    114 	break;
    115     }
    116 }
    117 
    118 static void
    119 invalid_char (int ch)
    120 {
    121   error (0, 0, (isascii (ch)
    122 		? gettext ("invalid character '%c' at line %d; ignored")
    123 		: gettext ("invalid character '\\%o' at line %d; ignored")),
    124 	 ch, yylineno);
    125 }
    126 
    127 // Local Variables:
    128 // mode: C
    129 // End:
    130