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

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Revision 144 - (show annotations) (download)
Mon Apr 2 13:32:07 2007 UTC (7 years, 3 months ago) by ph10
File size: 5164 byte(s)
Daniel's patches to add to the CMake support.

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 #ifdef _WIN32
42 # define snprintf _snprintf
43 #endif
44
45 #define FLAGS_unittest_stack_size 49152
46
47 // Dies with a fatal error if the two values are not equal.
48 #define CHECK_EQ(a, b) do { \
49 if ( (a) != (b) ) { \
50 fprintf(stderr, "%s:%d: Check failed because %s != %s\n", \
51 __FILE__, __LINE__, #a, #b); \
52 exit(1); \
53 } \
54 } while (0)
55
56 using std::vector;
57 using pcrecpp::StringPiece;
58 using pcrecpp::Scanner;
59
60 static void TestScanner() {
61 const char input[] = "\n"
62 "alpha = 1; // this sets alpha\n"
63 "bravo = 2; // bravo is set here\n"
64 "gamma = 33; /* and here is gamma */\n";
65
66 const char *re = "(\\w+) = (\\d+);";
67
68 Scanner s(input);
69 string var;
70 int number;
71 s.SkipCXXComments();
72 s.set_save_comments(true);
73 vector<StringPiece> comments;
74
75 s.Consume(re, &var, &number);
76 CHECK_EQ(var, "alpha");
77 CHECK_EQ(number, 1);
78 CHECK_EQ(s.LineNumber(), 3);
79 s.GetNextComments(&comments);
80 CHECK_EQ(comments.size(), 1);
81 CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
82 comments.resize(0);
83
84 s.Consume(re, &var, &number);
85 CHECK_EQ(var, "bravo");
86 CHECK_EQ(number, 2);
87 s.GetNextComments(&comments);
88 CHECK_EQ(comments.size(), 1);
89 CHECK_EQ(comments[0].as_string(), " // bravo is set here\n");
90 comments.resize(0);
91
92 s.Consume(re, &var, &number);
93 CHECK_EQ(var, "gamma");
94 CHECK_EQ(number, 33);
95 s.GetNextComments(&comments);
96 CHECK_EQ(comments.size(), 1);
97 CHECK_EQ(comments[0].as_string(), " /* and here is gamma */\n");
98 comments.resize(0);
99
100 s.GetComments(0, sizeof(input), &comments);
101 CHECK_EQ(comments.size(), 3);
102 CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
103 CHECK_EQ(comments[1].as_string(), " // bravo is set here\n");
104 CHECK_EQ(comments[2].as_string(), " /* and here is gamma */\n");
105 comments.resize(0);
106
107 s.GetComments(0, strchr(input, '/') - input, &comments);
108 CHECK_EQ(comments.size(), 0);
109 comments.resize(0);
110
111 s.GetComments(strchr(input, '/') - input - 1, sizeof(input),
112 &comments);
113 CHECK_EQ(comments.size(), 3);
114 CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
115 CHECK_EQ(comments[1].as_string(), " // bravo is set here\n");
116 CHECK_EQ(comments[2].as_string(), " /* and here is gamma */\n");
117 comments.resize(0);
118
119 s.GetComments(strchr(input, '/') - input - 1,
120 strchr(input + 1, '\n') - input + 1, &comments);
121 CHECK_EQ(comments.size(), 1);
122 CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
123 comments.resize(0);
124 }
125
126 static void TestBigComment() {
127 string input;
128 for (int i = 0; i < 1024; ++i) {
129 char buf[1024];
130 snprintf(buf, sizeof(buf), " # Comment %d\n", i);
131 input += buf;
132 }
133 input += "name = value;\n";
134
135 Scanner s(input.c_str());
136 s.SetSkipExpression("\\s+|#.*\n");
137
138 string name;
139 string value;
140 s.Consume("(\\w+) = (\\w+);", &name, &value);
141 CHECK_EQ(name, "name");
142 CHECK_EQ(value, "value");
143 }
144
145 // TODO: also test scanner and big-comment in a thread with a
146 // small stack size
147
148 int main(int argc, char** argv) {
149 TestScanner();
150 TestBigComment();
151
152 // Done
153 printf("OK\n");
154
155 return 0;
156 }

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