2 * Copyright 2004 The WebRTC Project Authors. All rights reserved.
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
11 #include "webrtc/base/checks.h"
12 #include "webrtc/base/stringutils.h"
16 bool memory_check(const void* memory, int c, size_t count) {
17 const char* char_memory = static_cast<const char*>(memory);
18 char char_c = static_cast<char>(c);
19 for (size_t i = 0; i < count; ++i) {
20 if (char_memory[i] != char_c) {
27 bool string_match(const char* target, const char* pattern) {
29 if (*pattern == '*') {
34 if ((toupper(*pattern) == toupper(*target))
35 && string_match(target + 1, pattern + 1)) {
42 if (toupper(*pattern) != toupper(*target)) {
52 #if defined(WEBRTC_WIN)
53 int ascii_string_compare(const wchar_t* s1, const char* s2, size_t n,
54 CharacterTransformation transformation) {
57 if (n-- == 0) return 0;
58 c1 = transformation(*s1);
59 // Double check that characters are not UTF-8
60 DCHECK_LT(static_cast<unsigned char>(*s2), 128);
61 // Note: *s2 gets implicitly promoted to wchar_t
62 c2 = transformation(*s2);
63 if (c1 != c2) return (c1 < c2) ? -1 : 1;
70 size_t asccpyn(wchar_t* buffer, size_t buflen,
71 const char* source, size_t srclen) {
75 if (srclen == SIZE_UNKNOWN) {
76 srclen = strlenn(source, buflen - 1);
77 } else if (srclen >= buflen) {
81 // Double check that characters are not UTF-8
82 for (size_t pos = 0; pos < srclen; ++pos)
83 DCHECK_LT(static_cast<unsigned char>(source[pos]), 128);
85 std::copy(source, source + srclen, buffer);
92 void replace_substrs(const char *search,
98 while ((pos = s->find(search, pos, search_len)) != std::string::npos) {
99 s->replace(pos, search_len, replace, replace_len);
104 bool starts_with(const char *s1, const char *s2) {
105 return strncmp(s1, s2, strlen(s2)) == 0;
108 bool ends_with(const char *s1, const char *s2) {
109 size_t s1_length = strlen(s1);
110 size_t s2_length = strlen(s2);
112 if (s2_length > s1_length) {
116 const char* start = s1 + (s1_length - s2_length);
117 return strncmp(start, s2, s2_length) == 0;
120 static const char kWhitespace[] = " \n\r\t";
122 std::string string_trim(const std::string& s) {
123 std::string::size_type first = s.find_first_not_of(kWhitespace);
124 std::string::size_type last = s.find_last_not_of(kWhitespace);
126 if (first == std::string::npos || last == std::string::npos) {
127 return std::string("");
130 return s.substr(first, last - first + 1);