Annotation of embedaddon/pcre/pcre_scanner_unittest.cc, revision 1.1.1.1
1.1 misho 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
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21: // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22: // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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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
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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 pcrecpp::StringPiece;
61: using pcrecpp::Scanner;
62:
63: static void TestScanner() {
64: const char input[] = "\n"
65: "alpha = 1; // this sets alpha\n"
66: "bravo = 2; // bravo is set here\n"
67: "gamma = 33; /* and here is gamma */\n";
68:
69: const char *re = "(\\w+) = (\\d+);";
70:
71: Scanner s(input);
72: string var;
73: int number;
74: s.SkipCXXComments();
75: s.set_save_comments(true);
76: vector<StringPiece> comments;
77:
78: s.Consume(re, &var, &number);
79: CHECK_EQ(var, "alpha");
80: CHECK_EQ(number, 1);
81: CHECK_EQ(s.LineNumber(), 3);
82: s.GetNextComments(&comments);
83: CHECK_EQ(comments.size(), 1);
84: CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
85: comments.resize(0);
86:
87: s.Consume(re, &var, &number);
88: CHECK_EQ(var, "bravo");
89: CHECK_EQ(number, 2);
90: s.GetNextComments(&comments);
91: CHECK_EQ(comments.size(), 1);
92: CHECK_EQ(comments[0].as_string(), " // bravo is set here\n");
93: comments.resize(0);
94:
95: s.Consume(re, &var, &number);
96: CHECK_EQ(var, "gamma");
97: CHECK_EQ(number, 33);
98: s.GetNextComments(&comments);
99: CHECK_EQ(comments.size(), 1);
100: CHECK_EQ(comments[0].as_string(), " /* and here is gamma */\n");
101: comments.resize(0);
102:
103: s.GetComments(0, sizeof(input), &comments);
104: CHECK_EQ(comments.size(), 3);
105: CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
106: CHECK_EQ(comments[1].as_string(), " // bravo is set here\n");
107: CHECK_EQ(comments[2].as_string(), " /* and here is gamma */\n");
108: comments.resize(0);
109:
110: s.GetComments(0, (int)(strchr(input, '/') - input), &comments);
111: CHECK_EQ(comments.size(), 0);
112: comments.resize(0);
113:
114: s.GetComments((int)(strchr(input, '/') - input - 1), sizeof(input),
115: &comments);
116: CHECK_EQ(comments.size(), 3);
117: CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
118: CHECK_EQ(comments[1].as_string(), " // bravo is set here\n");
119: CHECK_EQ(comments[2].as_string(), " /* and here is gamma */\n");
120: comments.resize(0);
121:
122: s.GetComments((int)(strchr(input, '/') - input - 1),
123: (int)(strchr(input + 1, '\n') - input + 1), &comments);
124: CHECK_EQ(comments.size(), 1);
125: CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
126: comments.resize(0);
127: }
128:
129: static void TestBigComment() {
130: string input;
131: for (int i = 0; i < 1024; ++i) {
132: char buf[1024]; // definitely big enough
133: sprintf(buf, " # Comment %d\n", i);
134: input += buf;
135: }
136: input += "name = value;\n";
137:
138: Scanner s(input.c_str());
139: s.SetSkipExpression("\\s+|#.*\n");
140:
141: string name;
142: string value;
143: s.Consume("(\\w+) = (\\w+);", &name, &value);
144: CHECK_EQ(name, "name");
145: CHECK_EQ(value, "value");
146: }
147:
148: // TODO: also test scanner and big-comment in a thread with a
149: // small stack size
150:
151: int main(int argc, char** argv) {
152: TestScanner();
153: TestBigComment();
154:
155: // Done
156: printf("OK\n");
157:
158: return 0;
159: }
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