1 %{
2 /* Copyright (C) 2004, 2005, 2007, 2008 Red Hat, Inc.
3 Written by Ulrich Drepper <drepper@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
35 #include <libeu.h>
36 #include "system.h"
37 #include "i386_parse.h"
38
39
40 static void eat_to_eol (void);
41 static void invalid_char (int ch);
42 %}
43
44 ID [a-zA-Z_][a-zA-Z0-9_/]*
45 ID2 [a-zA-Z0-9_:/]*
46 NUMBER [0-9]+
47 WHITE [[:space:]]+
48
49 %option yylineno
50 %option never-interactive
51 %option noyywrap
52
53
54 %x MAIN
55
56 %%
57
58 "%mask" { return kMASK; }
59
60 "%prefix" { return kPREFIX; }
61 "%suffix" { return kSUFFIX; }
62
63 "%synonym" { return kSYNONYM; }
64
65 {NUMBER} { i386_lval.num = strtoul (yytext, NULL, 10);
66 return kNUMBER; }
67
68 "%%" { BEGIN (MAIN); return kPERCPERC; }
69
70
71 <MAIN>"0" { return '0'; }
72 <MAIN>"1" { return '1'; }
73
74 <INITIAL,MAIN>"{"{ID2}"}" { i386_lval.str = xstrndup (yytext + 1,
75 yyleng - 2);
76 return kBITFIELD; }
77
78 <MAIN>"INVALID" { i386_lval.str = (void *) -1l;
79 return kID; }
80
81 <MAIN>{ID} { i386_lval.str = xstrndup (yytext, yyleng);
82 return kID; }
83
84 <MAIN>"," { return ','; }
85
86 <MAIN>":" { return ':'; }
87
88 <INITIAL,MAIN>^"\n" { /* IGNORE */ }
89
90 <INITIAL,MAIN>"\n" { return '\n'; }
91
92 <INITIAL,MAIN>^"#" { eat_to_eol (); }
93
94 {WHITE} { /* IGNORE */ }
95
96 <MAIN>{WHITE} { return kSPACE; }
97
98 <MAIN>. { i386_lval.ch = *yytext; return kCHAR; }
99
100 . { invalid_char (*yytext); }
101
102
103 %%
104
105 static void
106 eat_to_eol (void)
107 {
108 while (1)
109 {
110 int c = input ();
111
112 if (c == EOF || c == '\n')
113 break;
114 }
115 }
116
117 static void
invalid_char(int ch)118 invalid_char (int ch)
119 {
120 error (0, 0, (isascii (ch)
121 ? _("invalid character '%c' at line %d; ignored")
122 : _("invalid character '\\%o' at line %d; ignored")),
123 ch, yylineno);
124 }
125
126 // Local Variables:
127 // mode: C
128 // End:
129