1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
%{
/*
* Copyright (c) 2002, 2004, 2010 Tama Communications Corporation
*
* This file is part of GNU GLOBAL.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#else
#include <strings.h>
#endif
#define YYLTYPE int
#include "internal.h"
#include "asm_parse.h"
#include "asm_res.h"
#include "die.h"
#include "linetable.h"
#include "strbuf.h"
#define lex_symbol_generation_rule(x) asm_ ## x
#define LEXLEX lex_symbol_generation_rule(lex)
#define LEXTEXT lex_symbol_generation_rule(text)
#define LEXLENG lex_symbol_generation_rule(leng)
#define LEXLINENO lex_symbol_generation_rule(lineno)
#define LEXRESTART lex_symbol_generation_rule(restart)
#define LEXLVAL lex_symbol_generation_rule(lval)
#define LEXLLOC lex_symbol_generation_rule(lloc)
#define YY_DECL int LEXLEX(const struct parser_param *param)
#define YY_INPUT(buf, result, max_size) do { \
if ((result = linetable_read(buf, max_size)) == -1) \
result = YY_NULL; \
} while (0)
#define ADD_SYM(tag, lno) do { \
LEXLVAL = strbuf_getlen(asm_symtable); \
LEXLLOC = (lno); \
strbuf_puts0(asm_symtable, tag); \
} while (0)
#undef PUT
#define PUT(type, tag, lno) do { \
const char *line_image = linetable_get(lno, NULL); \
char *nl = strchr(line_image, '\n'); \
if (nl != NULL) \
*nl = '\0'; \
param->put(type, tag, lno, param->file, line_image, param->arg);\
if (nl != NULL) \
*nl = '\n'; \
} while (0)
static int last_directive;
%}
H 0[Xx][0-9A-Fa-f]+
N [0-9]+
L {N}L?
D1 {N}\.{N}([Ee][+-]?{N})?
D2 \.{N}([Ee][+-]?{N})?
NUMBER -?({L}|{D1}|{D2})
ALPHA [a-zA-Z_\x80-\xff]
ALPHANUM [a-zA-Z_\x80-\xff0-9]
WORD {ALPHA}{ALPHANUM}*
%x C_COMMENT CPP_COMMENT STRING LITERAL
%s PREPROCESSOR_LINE
%option 8bit yylineno stack noyywrap noyy_top_state never-interactive prefix="asm_"
%%
/* Ignore spaces */
[ \f\t\v]+
/* C style comment */
"/*" { yy_push_state(C_COMMENT); }
<C_COMMENT>{
[^*\n]*
[^*\n]*\n
"*"+[^*/\n]*
"*"+[^*/\n]*\n
"*"+"/" { yy_pop_state(); }
<<EOF>> {
if (param->flags & PARSER_WARNING)
warning("unexpected eof. [+%d %s]", LEXLINENO, param->file);
yyterminate();
}
}
/* C++ style line comment */
"//" { yy_push_state(CPP_COMMENT); }
<CPP_COMMENT>{
(\\.|[^\\\n])+
\\\n
\n { yy_pop_state(); unput('\n'); }
}
/* String */
\" { yy_push_state(STRING); }
<STRING>{
(\\.|[^\"\\\n])+
\\\n
\n { yy_pop_state(); unput('\n'); return ASM_CONST; }
\" { yy_pop_state(); return ASM_CONST; }
}
/* Character */
\' { yy_push_state(LITERAL); }
<LITERAL>{
(\\.|[^\'\\\n])+
\\\n
\n { yy_pop_state(); unput('\n'); return ASM_CONST; }
\' { yy_pop_state(); return ASM_CONST; }
}
/* Number */
{NUMBER} { return ASM_CONST; }
<INITIAL>{
^[ \t]*\#[ \t]*{WORD} {
last_directive = asm_reserved_sharp(LEXTEXT, LEXLENG);
switch (last_directive) {
case 0:
yy_push_state(CPP_COMMENT);
break;
case SHARP_DEFINE:
yy_push_state(PREPROCESSOR_LINE);
return ASM_DEFINE;
case SHARP_UNDEF:
yy_push_state(PREPROCESSOR_LINE);
return ASM_UNDEF;
default:
yy_push_state(PREPROCESSOR_LINE);
return ASM_DIRECTIVE;
}
}
^[ \t]*\# {
last_directive = 0;
yy_push_state(PREPROCESSOR_LINE);
return ASM_DIRECTIVE;
}
call|jsr { return ASM_CALL; }
\.macro|macro { return ASM_MACRO; }
\.equ|equ { return ASM_EQU; }
^(ENTRY|ALTENTRY|NENTRY|GLOBAL_ENTRY|JSBENTRY|C_SYMBOL_NAME|C_ENTRY) {
ADD_SYM(LEXTEXT, LEXLINENO);
return ASM_ENTRY;
}
EXT|SYMBOL_NAME|C_LABEL {
ADD_SYM(LEXTEXT, LEXLINENO);
return ASM_EXT;
}
^{WORD} { ADD_SYM(LEXTEXT, LEXLINENO); return ASM_LABEL; }
}
<PREPROCESSOR_LINE>{
{WORD} {
switch (last_directive) {
case SHARP_IF:
case SHARP_ELIF:
if (strcmp(LEXTEXT, "defined") == 0)
break;
/* FALLTHROUGH */
case SHARP_IFDEF:
case SHARP_IFNDEF:
PUT(PARSER_REF_SYM, LEXTEXT, LEXLINENO);
break;
default:
ADD_SYM(LEXTEXT, LEXLINENO);
return ASM_SYMBOL;
}
}
\n { yy_pop_state(); return '\n'; }
}
{WORD} { ADD_SYM(LEXTEXT, LEXLINENO); return ASM_SYMBOL; }
\\\n
\n { return '\n'; }
. { return LEXTEXT[0]; }
%%
void
asm_initscan(void)
{
BEGIN(INITIAL);
LEXRESTART(NULL);
LEXLINENO = 1;
}
|
