1 // Copyright (c) 2005, Google Inc.
2 // All rights reserved.
4 // Redistribution and use in source and binary forms, with or without
5 // modification, are permitted provided that the following conditions are
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
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.
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.
30 // Author: Greg J. Badros
32 // Unittest for scanner, especially GetNextComments and GetComments()
44 #include "pcre_stringpiece.h"
45 #include "pcre_scanner.h"
47 #define FLAGS_unittest_stack_size 49152
49 // Dies with a fatal error if the two values are not equal.
50 #define CHECK_EQ(a, b) do { \
52 fprintf(stderr, "%s:%d: Check failed because %s != %s\n", \
53 __FILE__, __LINE__, #a, #b); \
59 using pcrecpp::StringPiece;
60 using pcrecpp::Scanner;
62 static void TestScanner() {
63 const char input[] = "\n"
64 "alpha = 1; // this sets alpha\n"
65 "bravo = 2; // bravo is set here\n"
66 "gamma = 33; /* and here is gamma */\n";
68 const char *re = "(\\w+) = (\\d+);";
74 s.set_save_comments(true);
75 vector<StringPiece> comments;
77 s.Consume(re, &var, &number);
78 CHECK_EQ(var, "alpha");
80 CHECK_EQ(s.LineNumber(), 3);
81 s.GetNextComments(&comments);
82 CHECK_EQ(comments.size(), 1);
83 CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
86 s.Consume(re, &var, &number);
87 CHECK_EQ(var, "bravo");
89 s.GetNextComments(&comments);
90 CHECK_EQ(comments.size(), 1);
91 CHECK_EQ(comments[0].as_string(), " // bravo is set here\n");
94 s.Consume(re, &var, &number);
95 CHECK_EQ(var, "gamma");
97 s.GetNextComments(&comments);
98 CHECK_EQ(comments.size(), 1);
99 CHECK_EQ(comments[0].as_string(), " /* and here is gamma */\n");
102 s.GetComments(0, sizeof(input), &comments);
103 CHECK_EQ(comments.size(), 3);
104 CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
105 CHECK_EQ(comments[1].as_string(), " // bravo is set here\n");
106 CHECK_EQ(comments[2].as_string(), " /* and here is gamma */\n");
109 s.GetComments(0, (int)(strchr(input, '/') - input), &comments);
110 CHECK_EQ(comments.size(), 0);
113 s.GetComments((int)(strchr(input, '/') - input - 1), sizeof(input),
115 CHECK_EQ(comments.size(), 3);
116 CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
117 CHECK_EQ(comments[1].as_string(), " // bravo is set here\n");
118 CHECK_EQ(comments[2].as_string(), " /* and here is gamma */\n");
121 s.GetComments((int)(strchr(input, '/') - input - 1),
122 (int)(strchr(input + 1, '\n') - input + 1), &comments);
123 CHECK_EQ(comments.size(), 1);
124 CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
128 static void TestBigComment() {
130 for (int i = 0; i < 1024; ++i) {
131 char buf[1024]; // definitely big enough
132 sprintf(buf, " # Comment %d\n", i);
135 input += "name = value;\n";
137 Scanner s(input.c_str());
138 s.SetSkipExpression("\\s+|#.*\n");
142 s.Consume("(\\w+) = (\\w+);", &name, &value);
143 CHECK_EQ(name, "name");
144 CHECK_EQ(value, "value");
147 // TODO: also test scanner and big-comment in a thread with a
150 int main(int argc, char** argv) {