1/*
2 * Copyright (C) 2013 Google Inc. 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
31#pragma once
32
33#include <wtf/text/StringCommon.h>
34
35namespace WebCore {
36
37inline bool isNotASCIISpace(UChar c)
38{
39 return !isASCIISpace(c);
40}
41
42template<typename CharType>
43bool skipExactly(const CharType*& position, const CharType* end, CharType delimiter)
44{
45 if (position < end && *position == delimiter) {
46 ++position;
47 return true;
48 }
49 return false;
50}
51
52template<typename CharType, bool characterPredicate(CharType)>
53bool skipExactly(const CharType*& position, const CharType* end)
54{
55 if (position < end && characterPredicate(*position)) {
56 ++position;
57 return true;
58 }
59 return false;
60}
61
62template<typename CharType>
63void skipUntil(const CharType*& position, const CharType* end, CharType delimiter)
64{
65 while (position < end && *position != delimiter)
66 ++position;
67}
68
69template<typename CharType, bool characterPredicate(CharType)>
70void skipUntil(const CharType*& position, const CharType* end)
71{
72 while (position < end && !characterPredicate(*position))
73 ++position;
74}
75
76template<typename CharType, bool characterPredicate(CharType)>
77void skipWhile(const CharType*& position, const CharType* end)
78{
79 while (position < end && characterPredicate(*position))
80 ++position;
81}
82
83template<typename CharType, bool characterPredicate(CharType)>
84void reverseSkipWhile(const CharType*& position, const CharType* start)
85{
86 while (position >= start && characterPredicate(*position))
87 --position;
88}
89
90template<typename CharacterType, unsigned lowercaseLettersLength>
91bool skipExactlyIgnoringASCIICase(const CharacterType*& position, const CharacterType* end, const char (&lowercaseLetters)[lowercaseLettersLength])
92{
93 if (position + lowercaseLettersLength > end)
94 return false;
95
96 bool result = WTF::equalLettersIgnoringASCIICase(position, lowercaseLettersLength - 1, lowercaseLetters);
97 if (result)
98 position += (lowercaseLettersLength - 1);
99 return result;
100}
101
102} // namespace WebCore
103