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henrike@webrtc.orgf0488722014-05-13 18:00:261/*
2 * Copyright 2004 The WebRTC Project Authors. All rights reserved.
3 *
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.
9 */
Yves Gerey2e00abc2018-10-05 13:39:2410
Steve Anton10542f22019-01-11 17:11:0011#include "rtc_base/string_utils.h"
henrike@webrtc.orgf0488722014-05-13 18:00:2612
henrike@webrtc.orgf0488722014-05-13 18:00:2613namespace rtc {
14
Niels Möllerd1892522018-10-17 11:39:0115size_t strcpyn(char* buffer,
16 size_t buflen,
17 const char* source,
18 size_t srclen /* = SIZE_UNKNOWN */) {
19 if (buflen <= 0)
20 return 0;
21
22 if (srclen == SIZE_UNKNOWN) {
23 srclen = strlen(source);
24 }
25 if (srclen >= buflen) {
26 srclen = buflen - 1;
27 }
28 memcpy(buffer, source, srclen);
29 buffer[srclen] = 0;
30 return srclen;
31}
32
Yves Gerey665174f2018-06-19 13:03:0533void replace_substrs(const char* search,
henrike@webrtc.orgf0488722014-05-13 18:00:2634 size_t search_len,
Yves Gerey665174f2018-06-19 13:03:0535 const char* replace,
henrike@webrtc.orgf0488722014-05-13 18:00:2636 size_t replace_len,
Yves Gerey665174f2018-06-19 13:03:0537 std::string* s) {
henrike@webrtc.orgf0488722014-05-13 18:00:2638 size_t pos = 0;
39 while ((pos = s->find(search, pos, search_len)) != std::string::npos) {
40 s->replace(pos, search_len, replace, replace_len);
41 pos += replace_len;
42 }
43}
44
henrike@webrtc.orgf0488722014-05-13 18:00:2645static const char kWhitespace[] = " \n\r\t";
46
47std::string string_trim(const std::string& s) {
48 std::string::size_type first = s.find_first_not_of(kWhitespace);
Yves Gerey665174f2018-06-19 13:03:0549 std::string::size_type last = s.find_last_not_of(kWhitespace);
henrike@webrtc.orgf0488722014-05-13 18:00:2650
51 if (first == std::string::npos || last == std::string::npos) {
52 return std::string("");
53 }
54
55 return s.substr(first, last - first + 1);
56}
57
Jonas Olsson74395342018-04-03 10:22:0758std::string ToHex(const int i) {
59 char buffer[50];
60 snprintf(buffer, sizeof(buffer), "%x", i);
61
62 return std::string(buffer);
63}
64
Jonas Olssond8c50782018-09-07 09:21:2865std::string LeftPad(char padding, unsigned length, std::string s) {
66 if (s.length() >= length)
67 return s;
68 return std::string(length - s.length(), padding) + s;
69}
70
henrike@webrtc.orgf0488722014-05-13 18:00:2671} // namespace rtc