/[pcre]/code/trunk/pcre_scanner_unittest.cc
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Contents of /code/trunk/pcre_scanner_unittest.cc

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Revision 93 - (show annotations) (download)
Sat Feb 24 21:41:42 2007 UTC (7 years, 5 months ago) by nigel
File size: 5113 byte(s)
Load pcre-7.0 into code/trunk.

1 // Copyright (c) 2005, Google Inc.
2 // All rights reserved.
3 //
4 // Redistribution and use in source and binary forms, with or without
5 // modification, are permitted provided that the following conditions are
6 // met:
7 //
8 // * Redistributions of source code must retain the above copyright
9 // notice, this list of conditions and the following disclaimer.
10 // * Redistributions in binary form must reproduce the above
11 // copyright notice, this list of conditions and the following disclaimer
12 // in the documentation and/or other materials provided with the
13 // distribution.
14 // * Neither the name of Google Inc. nor the names of its
15 // contributors may be used to endorse or promote products derived from
16 // this software without specific prior written permission.
17 //
18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 //
30 // Author: Greg J. Badros
31 //
32 // Unittest for scanner, especially GetNextComments and GetComments()
33 // functionality.
34
35 #include <stdio.h>
36 #include <string>
37 #include <vector>
38 #include <pcre_stringpiece.h>
39 #include <pcre_scanner.h>
40
41 #define FLAGS_unittest_stack_size 49152
42
43 // Dies with a fatal error if the two values are not equal.
44 #define CHECK_EQ(a, b) do { \
45 if ( (a) != (b) ) { \
46 fprintf(stderr, "%s:%d: Check failed because %s != %s\n", \
47 __FILE__, __LINE__, #a, #b); \
48 exit(1); \
49 } \
50 } while (0)
51
52 using std::vector;
53 using pcrecpp::StringPiece;
54 using pcrecpp::Scanner;
55
56 static void TestScanner() {
57 const char input[] = "\n"
58 "alpha = 1; // this sets alpha\n"
59 "bravo = 2; // bravo is set here\n"
60 "gamma = 33; /* and here is gamma */\n";
61
62 const char *re = "(\\w+) = (\\d+);";
63
64 Scanner s(input);
65 string var;
66 int number;
67 s.SkipCXXComments();
68 s.set_save_comments(true);
69 vector<StringPiece> comments;
70
71 s.Consume(re, &var, &number);
72 CHECK_EQ(var, "alpha");
73 CHECK_EQ(number, 1);
74 CHECK_EQ(s.LineNumber(), 3);
75 s.GetNextComments(&comments);
76 CHECK_EQ(comments.size(), 1);
77 CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
78 comments.resize(0);
79
80 s.Consume(re, &var, &number);
81 CHECK_EQ(var, "bravo");
82 CHECK_EQ(number, 2);
83 s.GetNextComments(&comments);
84 CHECK_EQ(comments.size(), 1);
85 CHECK_EQ(comments[0].as_string(), " // bravo is set here\n");
86 comments.resize(0);
87
88 s.Consume(re, &var, &number);
89 CHECK_EQ(var, "gamma");
90 CHECK_EQ(number, 33);
91 s.GetNextComments(&comments);
92 CHECK_EQ(comments.size(), 1);
93 CHECK_EQ(comments[0].as_string(), " /* and here is gamma */\n");
94 comments.resize(0);
95
96 s.GetComments(0, sizeof(input), &comments);
97 CHECK_EQ(comments.size(), 3);
98 CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
99 CHECK_EQ(comments[1].as_string(), " // bravo is set here\n");
100 CHECK_EQ(comments[2].as_string(), " /* and here is gamma */\n");
101 comments.resize(0);
102
103 s.GetComments(0, strchr(input, '/') - input, &comments);
104 CHECK_EQ(comments.size(), 0);
105 comments.resize(0);
106
107 s.GetComments(strchr(input, '/') - input - 1, sizeof(input),
108 &comments);
109 CHECK_EQ(comments.size(), 3);
110 CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
111 CHECK_EQ(comments[1].as_string(), " // bravo is set here\n");
112 CHECK_EQ(comments[2].as_string(), " /* and here is gamma */\n");
113 comments.resize(0);
114
115 s.GetComments(strchr(input, '/') - input - 1,
116 strchr(input + 1, '\n') - input + 1, &comments);
117 CHECK_EQ(comments.size(), 1);
118 CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
119 comments.resize(0);
120 }
121
122 static void TestBigComment() {
123 string input;
124 for (int i = 0; i < 1024; ++i) {
125 char buf[1024];
126 snprintf(buf, sizeof(buf), " # Comment %d\n", i);
127 input += buf;
128 }
129 input += "name = value;\n";
130
131 Scanner s(input.c_str());
132 s.SetSkipExpression("\\s+|#.*\n");
133
134 string name;
135 string value;
136 s.Consume("(\\w+) = (\\w+);", &name, &value);
137 CHECK_EQ(name, "name");
138 CHECK_EQ(value, "value");
139 }
140
141 // TODO: also test scanner and big-comment in a thread with a
142 // small stack size
143
144 int main(int argc, char** argv) {
145 TestScanner();
146 TestBigComment();
147
148 // Done
149 printf("OK\n");
150
151 return 0;
152 }

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