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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    Red Hat elfutils is free software; you can redistribute it and/or modify
      6    it under the terms of the GNU General Public License as published by the
      7    Free Software Foundation; version 2 of the License.
      8 
      9    Red Hat elfutils is distributed in the hope that it will be useful, but
     10    WITHOUT ANY WARRANTY; without even the implied warranty of
     11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     12    General Public License for more details.
     13 
     14    You should have received a copy of the GNU General Public License along
     15    with Red Hat elfutils; if not, write to the Free Software Foundation,
     16    Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
     17 
     18    Red Hat elfutils is an included package of the Open Invention Network.
     19    An included package of the Open Invention Network is a package for which
     20    Open Invention Network licensees cross-license their patents.  No patent
     21    license is granted, either expressly or impliedly, by designation as an
     22    included package.  Should you wish to participate in the Open Invention
     23    Network licensing program, please visit www.openinventionnetwork.com
     24    <http://www.openinventionnetwork.com>.  */
     25 
     26 #ifdef HAVE_CONFIG_H
     27 # include <config.h>
     28 #endif
     29 
     30 #include <ctype.h>
     31 #include <error.h>
     32 #include <libintl.h>
     33 
     34 #include <system.h>
     35 #include "i386_parse.h"
     36 
     37 
     38 static void eat_to_eol (void);
     39 static void invalid_char (int ch);
     40 %}
     41 
     42 ID              [a-zA-Z_][a-zA-Z0-9_/]*
     43 ID2             [a-zA-Z0-9_:/]*
     44 NUMBER		[0-9]+
     45 WHITE		[[:space:]]+
     46 
     47 %option yylineno
     48 %option never-interactive
     49 %option noyywrap
     50 
     51 
     52 %x MAIN
     53 
     54 %%
     55 
     56 "%mask"				{ return kMASK; }
     57 
     58 "%prefix"			{ return kPREFIX; }
     59 "%suffix"			{ return kSUFFIX; }
     60 
     61 "%synonym"			{ return kSYNONYM; }
     62 
     63 {NUMBER}			{ i386_lval.num = strtoul (yytext, NULL, 10);
     64 				  return kNUMBER; }
     65 
     66 "%%"				{ BEGIN (MAIN); return kPERCPERC; }
     67 
     68 
     69 <MAIN>"0"			{ return '0'; }
     70 <MAIN>"1"			{ return '1'; }
     71 
     72 <INITIAL,MAIN>"{"{ID2}"}"	{ i386_lval.str = xstrndup (yytext + 1,
     73 							    yyleng - 2);
     74 				  return kBITFIELD; }
     75 
     76 <MAIN>"INVALID"			{ i386_lval.str = (void *) -1l;
     77 				  return kID; }
     78 
     79 <MAIN>{ID}			{ i386_lval.str = xstrndup (yytext, yyleng);
     80 				  return kID; }
     81 
     82 <MAIN>","			{ return ','; }
     83 
     84 <MAIN>":"			{ return ':'; }
     85 
     86 <INITIAL,MAIN>^"\n"		{ /* IGNORE */ }
     87 
     88 <INITIAL,MAIN>"\n"		{ return '\n'; }
     89 
     90 <INITIAL,MAIN>^"#"		{ eat_to_eol (); }
     91 
     92 {WHITE}				{ /* IGNORE */ }
     93 
     94 <MAIN>{WHITE}			{ return kSPACE; }
     95 
     96 <MAIN>.				{ i386_lval.ch = *yytext; return kCHAR; }
     97 
     98 .				{ invalid_char (*yytext); }
     99 
    100 
    101 %%
    102 
    103 static void
    104 eat_to_eol (void)
    105 {
    106   while (1)
    107     {
    108       int c = input ();
    109 
    110       if (c == EOF || c == '\n')
    111 	break;
    112     }
    113 }
    114 
    115 static void
    116 invalid_char (int ch)
    117 {
    118   error (0, 0, (isascii (ch)
    119 		? gettext ("invalid character '%c' at line %d; ignored")
    120 		: gettext ("invalid character '\\%o' at line %d; ignored")),
    121 	 ch, yylineno);
    122 }
    123 
    124 // Local Variables:
    125 // mode: C
    126 // End:
    127