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 #include <libintl.h>
35
36 #include <libeu.h>
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
invalid_char(int ch)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