code/trunk/pcre_scanner_unittest.cc

// Copyright (c) 2005, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: Greg J. Badros
//
// Unittest for scanner, especially GetNextComments and GetComments()
// functionality.

#include <stdio.h>
#include <vector>
#include <pcre_stringpiece.h>
#include <pcre_scanner.h>

// Dies with a fatal error if the two values are not equal.
#define CHECK_EQ(a, b)  do {                                    \
  if ( (a) != (b) ) {                                           \
    fprintf(stderr, "%s:%d: Check failed because %s != %s\n",   \
            __FILE__, __LINE__, #a, #b);                        \
    exit(1);                                                    \
  }                                                             \
} while (0)

using std::vector;
using pcrecpp::StringPiece;
using pcrecpp::Scanner;

static void TestScanner() {
  const char input[] = "\n"
                       "alpha = 1; // this sets alpha\n"
                       "bravo = 2; // bravo is set here\n"
                       "gamma = 33; /* and here is gamma */\n";

  const char *re = "(\\w+) = (\\d+);";

  Scanner s(input);
  string var;
  int number;
  s.SkipCXXComments();
  s.set_save_comments(true);
  vector<StringPiece> comments;

  s.Consume(re, &var, &number);
  CHECK_EQ(var, "alpha");
  CHECK_EQ(number, 1);
  CHECK_EQ(s.LineNumber(), 3);
  s.GetNextComments(&comments);
  CHECK_EQ(comments.size(), 1);
  CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
  comments.resize(0);

  s.Consume(re, &var, &number);
  CHECK_EQ(var, "bravo");
  CHECK_EQ(number, 2);
  s.GetNextComments(&comments);
  CHECK_EQ(comments.size(), 1);
  CHECK_EQ(comments[0].as_string(), " // bravo is set here\n");
  comments.resize(0);

  s.Consume(re, &var, &number);
  CHECK_EQ(var, "gamma");
  CHECK_EQ(number, 33);
  s.GetNextComments(&comments);
  CHECK_EQ(comments.size(), 1);
  CHECK_EQ(comments[0].as_string(), " /* and here is gamma */\n");
  comments.resize(0);

  s.GetComments(0, sizeof(input), &comments);
  CHECK_EQ(comments.size(), 3);
  CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
  CHECK_EQ(comments[1].as_string(), " // bravo is set here\n");
  CHECK_EQ(comments[2].as_string(), " /* and here is gamma */\n");
  comments.resize(0);

  s.GetComments(0, strchr(input, '/') - input, &comments);
  CHECK_EQ(comments.size(), 0);
  comments.resize(0);

  s.GetComments(strchr(input, '/') - input - 1, sizeof(input),
                &comments);
  CHECK_EQ(comments.size(), 3);
  CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
  CHECK_EQ(comments[1].as_string(), " // bravo is set here\n");
  CHECK_EQ(comments[2].as_string(), " /* and here is gamma */\n");
  comments.resize(0);

  s.GetComments(strchr(input, '/') - input - 1,
                strchr(input + 1, '\n') - input + 1, &comments);
  CHECK_EQ(comments.size(), 1);
  CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
  comments.resize(0);
}

int main(int argc, char** argv) {
  TestScanner();

  // Done
  printf("OK\n");

  return 0;
}
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 <vector>
37	#include <pcre_stringpiece.h>
38	#include <pcre_scanner.h>
39
40	// Dies with a fatal error if the two values are not equal.
41	#define CHECK_EQ(a, b) do { \
42	if ( (a) != (b) ) { \
43	fprintf(stderr, "%s:%d: Check failed because %s != %s\n", \
44	__FILE__, __LINE__, #a, #b); \
45	exit(1); \
46	} \
47	} while (0)
48
49	using std::vector;
50	using pcrecpp::StringPiece;
51	using pcrecpp::Scanner;
52
53	static void TestScanner() {
54	const char input[] = "\n"
55	"alpha = 1; // this sets alpha\n"
56	"bravo = 2; // bravo is set here\n"
57	"gamma = 33; /* and here is gamma */\n";
58
59	const char *re = "(\\w+) = (\\d+);";
60
61	Scanner s(input);
62	string var;
63	int number;
64	s.SkipCXXComments();
65	s.set_save_comments(true);
66	vector<StringPiece> comments;
67
68	s.Consume(re, &var, &number);
69	CHECK_EQ(var, "alpha");
70	CHECK_EQ(number, 1);
71	CHECK_EQ(s.LineNumber(), 3);
72	s.GetNextComments(&comments);
73	CHECK_EQ(comments.size(), 1);
74	CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
75	comments.resize(0);
76
77	s.Consume(re, &var, &number);
78	CHECK_EQ(var, "bravo");
79	CHECK_EQ(number, 2);
80	s.GetNextComments(&comments);
81	CHECK_EQ(comments.size(), 1);
82	CHECK_EQ(comments[0].as_string(), " // bravo is set here\n");
83	comments.resize(0);
84
85	s.Consume(re, &var, &number);
86	CHECK_EQ(var, "gamma");
87	CHECK_EQ(number, 33);
88	s.GetNextComments(&comments);
89	CHECK_EQ(comments.size(), 1);
90	CHECK_EQ(comments[0].as_string(), " /* and here is gamma */\n");
91	comments.resize(0);
92
93	s.GetComments(0, sizeof(input), &comments);
94	CHECK_EQ(comments.size(), 3);
95	CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
96	CHECK_EQ(comments[1].as_string(), " // bravo is set here\n");
97	CHECK_EQ(comments[2].as_string(), " /* and here is gamma */\n");
98	comments.resize(0);
99
100	s.GetComments(0, strchr(input, '/') - input, &comments);
101	CHECK_EQ(comments.size(), 0);
102	comments.resize(0);
103
104	s.GetComments(strchr(input, '/') - input - 1, sizeof(input),
105	&comments);
106	CHECK_EQ(comments.size(), 3);
107	CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
108	CHECK_EQ(comments[1].as_string(), " // bravo is set here\n");
109	CHECK_EQ(comments[2].as_string(), " /* and here is gamma */\n");
110	comments.resize(0);
111
112	s.GetComments(strchr(input, '/') - input - 1,
113	strchr(input + 1, '\n') - input + 1, &comments);
114	CHECK_EQ(comments.size(), 1);
115	CHECK_EQ(comments[0].as_string(), " // this sets alpha\n");
116	comments.resize(0);
117	}
118
119	int main(int argc, char** argv) {
120	TestScanner();
121
122	// Done
123	printf("OK\n");
124
125	return 0;
126	}