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
|
/*
* This file is part of flex.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE.
*/
/* The point of this test is to be sure our M4 madness does not
* interfere with user code. I particular, we are looking
* for instances of M4 quotes, [[ and ]], in here to make it through the flex
* machinery unscathed.
*/
/* sect 1 [ 1 ] TEST_XXX */
/* sect 1 [[ 2 ]] TEST_XXX */
/* sect 1 [[[ 3 ]]] TEST_XXX */
/* sect 1 [[[[ 4 ]]]] TEST_XXX */
/* sect 1 ]] unmatched [[ TEST_XXX */
/* sect 1 ]]
* multiline unmatched [[ TEST_XXX
*/
%{
/* A template scanner file to build "scanner.c". */
#include <stdio.h>
#include <stdlib.h>
#include "config.h"
#include <assert.h>
/*#include "parser.h" */
/* sect 1 block [ 1 ] TEST_XXX */
/* sect 1 block [[ 2 ]] TEST_XXX */
/* sect 1 block [[[ 3 ]]] TEST_XXX */
/* sect 1 block [[[[ 4 ]]]] TEST_XXX */
/* sect 1 block ]] unmatched [[ TEST_XXX */
/* sect 1 block ]]
* multiline unmatched [[ TEST_XXX
*/
static int a[1] = {0};
static int b[1] = {0};
static int c[1] = {0};
static int foo (int i){
return a[b[c[i]]]; /* sect 1 code TEST_XXX */
}
%}
%option 8bit prefix="test"
%option nounput nomain noyywrap noinput
%option warn
%%
/* indented code [ 1 ] */
/* indented code [[ 2 ]] */
/* indented code [[[ 3 ]]] */
/* indented code [[[[ 4 ]]]] */
/* indented code ]] unmatched [[ */
/* indented code ]]
* multiline unmatched [[
*/
%{
// non-indented code [ 1 ]
// non-indented code [[ 2 ]]
// non-indented code [[[ 3 ]]]
// non-indented code [[[[ 4 ]]]]
%}
a /* action comment [ 1 ] */ ;
b /* action comment [[ 2 ]] */ ;
c /* action comment [[[ 3 ]]] */ ;
d /* action comment [[[[ 4 ]]]] */ ;
e /* action comment ]] unmatched [[ */ ;
f return 1+foo(a[b[c[0]]]);
g /* long action comment
* [ 1 ]
* [[ 2 ]]
* [[[ 3 ]]]
* [[[[ 4 ]]]]
* ]]
* multiline unmatched [[
*/ ;
h { } /* after action comment [ 1 ] */
i { } /* after action comment [[ 2 ]] */
j { } /* after action comment [[[ 3 ]]] */
k { } /* after action comment [[[[ 4 ]]]] */
l { } /* after action comment ]] unmatched [[ */
m { } /* after action comment
* ]]
* multiline unmatched [[
*/
.|\n {
#if 0
action code [ 1 ] TEST_XXX
action code [[ 2 ]] TEST_XXX
action code [[[ 3 ]]] TEST_XXX
action code [[[[ 4 ]]]] TEST_XXX
action code ]] unmatched [[ TEST_XXX
#endif
/* action block [ 1 ] TEST_XXX */
/* action block [[ 2 ]] TEST_XXX */
/* action block [[[ 3 ]]] TEST_XXX */
/* action block [[[[ 4 ]]]] TEST_XXX */
/* action block ]] unmatched [[ TEST_XXX */
/* action block ]]
* multiline unmatched [[
* TEST_XXX */
assert(!strcmp("[[ 2 ]]", "[""[ 2 ]""]"));
assert(!strcmp("[[[ 3 ]]]", "[""[""[ 3 ]""]""]"));
assert(!strcmp("[[[[ 4 ]]]]", "[""[""[""[ 4 ]""]""]""]"));
assert(!strcmp("]] unmatched [[", "]""] unmatched [""["));
assert(!strcmp("]]m4_define(alpha, beta)[[",
"]""]m4_""define(alpha, beta)[""["));
return 1+foo(a[b[c[0]]]); /* TEST_XXX */
}
%%
/* sect 3 [ 1 ] TEST_XXX */
/* sect 3 [[ 2 ]] TEST_XXX */
/* sect 3 [[[ 3 ]]] TEST_XXX */
/* sect 3 [[[[ 4 ]]]] TEST_XXX */
/* sect 3 ]] unmatched [[ TEST_XXX */
/* sect 3 ]]
* multiline unmatched [[ TEST_XXX */
static int bar (int i){
return c[b[a[i]]]; /* sect 3 code TEST_XXX */
}
int main(void);
#define CONCAT_IDENTS(a, b) a##b
int
main (void)
{
/* m4_m4exit(100) */
FILE *M4_YY_NOT_IN_HEADER = stdin;
yyin = CONCAT_IDENTS(M4_, YY_NOT_IN_HEADER);
yyout = stdout;
while (yylex())
;
assert(!strcmp("YY_G( alpha)", "Y""Y_G( alpha)"));
printf("TEST RETURNING OK.\n");
return bar(0);
}
|
