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

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Revision 1697 - (show annotations)
Fri Apr 21 17:05:21 2017 UTC (2 years, 5 months ago) by ph10
File size: 5313 byte(s)
Error occurred while calculating annotation data.
C++ patch to guard 'using std::' directives with namespace pcrecpp.
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 #ifdef HAVE_CONFIG_H
36 #include "config.h"
37 #endif
38
39 #include <stdio.h>
40 #include <string.h> /* for strchr */
41 #include <string>
42 #include <vector>
43
44 #include "pcrecpp.h"
45 #include "pcre_stringpiece.h"
46 #include "pcre_scanner.h"
47
48 #define FLAGS_unittest_stack_size 49152
49
50 // Dies with a fatal error if the two values are not equal.
51 #define CHECK_EQ(a, b) do { \
52 if ( (a) != (b) ) { \
53 fprintf(stderr, "%s:%d: Check failed because %s != %s\n", \
54 __FILE__, __LINE__, #a, #b); \
55 exit(1); \
56 } \
57 } while (0)
58
59 using std::vector;
60 using std::string;
61 using pcrecpp::StringPiece;
62 using pcrecpp::Scanner;
63
64 static void TestScanner() {
65 const char input[] = "\n"
66 "alpha = 1; // this sets alpha\n"
67 "bravo = 2; // bravo is set here\n"
68 "gamma = 33; /* and here is gamma */\n";
69
70 const char *re = "(\\w+) = (\\d+);";
71
72 Scanner s(input);
73 string var;
74 int number;
75 s.SkipCXXComments();
76 s.set_save_comments(true);
77 vector<StringPiece> comments;
78
79 s.Consume(re, &var, &number);
80 CHECK_EQ(var, "alpha");
81 CHECK_EQ(number, 1);
82 CHECK_EQ(s.LineNumber(), 3);
83 s.GetNextComments(&comments);
84 CHECK_EQ(comments.size(), 1);
85 CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
86 comments.resize(0);
87
88 s.Consume(re, &var, &number);
89 CHECK_EQ(var, "bravo");
90 CHECK_EQ(number, 2);
91 s.GetNextComments(&comments);
92 CHECK_EQ(comments.size(), 1);
93 CHECK_EQ(comments[0].as_string(), " // bravo is set here\n");
94 comments.resize(0);
95
96 s.Consume(re, &var, &number);
97 CHECK_EQ(var, "gamma");
98 CHECK_EQ(number, 33);
99 s.GetNextComments(&comments);
100 CHECK_EQ(comments.size(), 1);
101 CHECK_EQ(comments[0].as_string(), " /* and here is gamma */\n");
102 comments.resize(0);
103
104 s.GetComments(0, sizeof(input), &comments);
105 CHECK_EQ(comments.size(), 3);
106 CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
107 CHECK_EQ(comments[1].as_string(), " // bravo is set here\n");
108 CHECK_EQ(comments[2].as_string(), " /* and here is gamma */\n");
109 comments.resize(0);
110
111 s.GetComments(0, (int)(strchr(input, '/') - input), &comments);
112 CHECK_EQ(comments.size(), 0);
113 comments.resize(0);
114
115 s.GetComments((int)(strchr(input, '/') - input - 1), sizeof(input),
116 &comments);
117 CHECK_EQ(comments.size(), 3);
118 CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
119 CHECK_EQ(comments[1].as_string(), " // bravo is set here\n");
120 CHECK_EQ(comments[2].as_string(), " /* and here is gamma */\n");
121 comments.resize(0);
122
123 s.GetComments((int)(strchr(input, '/') - input - 1),
124 (int)(strchr(input + 1, '\n') - input + 1), &comments);
125 CHECK_EQ(comments.size(), 1);
126 CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
127 comments.resize(0);
128 }
129
130 static void TestBigComment() {
131 string input;
132 for (int i = 0; i < 1024; ++i) {
133 char buf[1024]; // definitely big enough
134 sprintf(buf, " # Comment %d\n", i);
135 input += buf;
136 }
137 input += "name = value;\n";
138
139 Scanner s(input.c_str());
140 s.SetSkipExpression("\\s+|#.*\n");
141
142 string name;
143 string value;
144 s.Consume("(\\w+) = (\\w+);", &name, &value);
145 CHECK_EQ(name, "name");
146 CHECK_EQ(value, "value");
147 }
148
149 // TODO: also test scanner and big-comment in a thread with a
150 // small stack size
151
152 int main(int argc, char** argv) {
153 (void)argc;
154 (void)argv;
155 TestScanner();
156 TestBigComment();
157
158 // Done
159 printf("OK\n");
160
161 return 0;
162 }

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