xpcom/ds/nsWhitespaceTokenizer.h@129ffea94266 (annotated)
xpcom/ds/nsWhitespaceTokenizer.h
Sat, 03 Jan 2015 20:18:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Sat, 03 Jan 2015 20:18:00 +0100
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
- permissions
- -rw-r--r--
Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #ifndef __nsWhitespaceTokenizer_h |
| michael@0 | 7 | #define __nsWhitespaceTokenizer_h |
| michael@0 | 8 | |
| michael@0 | 9 | #include "mozilla/RangedPtr.h" |
| michael@0 | 10 | #include "nsDependentSubstring.h" |
| michael@0 | 11 | #include "nsCRT.h" |
| michael@0 | 12 | |
| michael@0 | 13 | template<bool IsWhitespace(char16_t) = NS_IsAsciiWhitespace> |
| michael@0 | 14 | class nsWhitespaceTokenizerTemplate |
| michael@0 | 15 | { |
| michael@0 | 16 | public: |
| michael@0 | 17 | nsWhitespaceTokenizerTemplate(const nsSubstring& aSource) |
| michael@0 | 18 | : mIter(aSource.Data(), aSource.Length()), |
| michael@0 | 19 | mEnd(aSource.Data() + aSource.Length(), aSource.Data(), |
| michael@0 | 20 | aSource.Length()), |
| michael@0 | 21 | mWhitespaceBeforeFirstToken(false), |
| michael@0 | 22 | mWhitespaceAfterCurrentToken(false) |
| michael@0 | 23 | { |
| michael@0 | 24 | while (mIter < mEnd && IsWhitespace(*mIter)) { |
| michael@0 | 25 | mWhitespaceBeforeFirstToken = true; |
| michael@0 | 26 | ++mIter; |
| michael@0 | 27 | } |
| michael@0 | 28 | } |
| michael@0 | 29 | |
| michael@0 | 30 | /** |
| michael@0 | 31 | * Checks if any more tokens are available. |
| michael@0 | 32 | */ |
| michael@0 | 33 | bool hasMoreTokens() const |
| michael@0 | 34 | { |
| michael@0 | 35 | return mIter < mEnd; |
| michael@0 | 36 | } |
| michael@0 | 37 | |
| michael@0 | 38 | /* |
| michael@0 | 39 | * Returns true if there is whitespace prior to the first token. |
| michael@0 | 40 | */ |
| michael@0 | 41 | bool whitespaceBeforeFirstToken() const |
| michael@0 | 42 | { |
| michael@0 | 43 | return mWhitespaceBeforeFirstToken; |
| michael@0 | 44 | } |
| michael@0 | 45 | |
| michael@0 | 46 | /* |
| michael@0 | 47 | * Returns true if there is any whitespace after the current token. |
| michael@0 | 48 | * This is always true unless we're reading the last token. |
| michael@0 | 49 | */ |
| michael@0 | 50 | bool whitespaceAfterCurrentToken() const |
| michael@0 | 51 | { |
| michael@0 | 52 | return mWhitespaceAfterCurrentToken; |
| michael@0 | 53 | } |
| michael@0 | 54 | |
| michael@0 | 55 | /** |
| michael@0 | 56 | * Returns the next token. |
| michael@0 | 57 | */ |
| michael@0 | 58 | const nsDependentSubstring nextToken() |
| michael@0 | 59 | { |
| michael@0 | 60 | const mozilla::RangedPtr<const char16_t> tokenStart = mIter; |
| michael@0 | 61 | while (mIter < mEnd && !IsWhitespace(*mIter)) { |
| michael@0 | 62 | ++mIter; |
| michael@0 | 63 | } |
| michael@0 | 64 | const mozilla::RangedPtr<const char16_t> tokenEnd = mIter; |
| michael@0 | 65 | mWhitespaceAfterCurrentToken = false; |
| michael@0 | 66 | while (mIter < mEnd && IsWhitespace(*mIter)) { |
| michael@0 | 67 | mWhitespaceAfterCurrentToken = true; |
| michael@0 | 68 | ++mIter; |
| michael@0 | 69 | } |
| michael@0 | 70 | return Substring(tokenStart.get(), tokenEnd.get()); |
| michael@0 | 71 | } |
| michael@0 | 72 | |
| michael@0 | 73 | private: |
| michael@0 | 74 | mozilla::RangedPtr<const char16_t> mIter; |
| michael@0 | 75 | const mozilla::RangedPtr<const char16_t> mEnd; |
| michael@0 | 76 | bool mWhitespaceBeforeFirstToken; |
| michael@0 | 77 | bool mWhitespaceAfterCurrentToken; |
| michael@0 | 78 | }; |
| michael@0 | 79 | |
| michael@0 | 80 | class nsWhitespaceTokenizer: public nsWhitespaceTokenizerTemplate<> |
| michael@0 | 81 | { |
| michael@0 | 82 | public: |
| michael@0 | 83 | nsWhitespaceTokenizer(const nsSubstring& aSource) |
| michael@0 | 84 | : nsWhitespaceTokenizerTemplate<>(aSource) |
| michael@0 | 85 | { |
| michael@0 | 86 | } |
| michael@0 | 87 | }; |
| michael@0 | 88 | |
| michael@0 | 89 | template<bool IsWhitespace(char16_t) = NS_IsAsciiWhitespace> |
| michael@0 | 90 | class nsCWhitespaceTokenizerTemplate |
| michael@0 | 91 | { |
| michael@0 | 92 | public: |
| michael@0 | 93 | nsCWhitespaceTokenizerTemplate(const nsCSubstring& aSource) |
| michael@0 | 94 | : mIter(aSource.Data(), aSource.Length()), |
| michael@0 | 95 | mEnd(aSource.Data() + aSource.Length(), aSource.Data(), |
| michael@0 | 96 | aSource.Length()), |
| michael@0 | 97 | mWhitespaceBeforeFirstToken(false), |
| michael@0 | 98 | mWhitespaceAfterCurrentToken(false) |
| michael@0 | 99 | { |
| michael@0 | 100 | while (mIter < mEnd && IsWhitespace(*mIter)) { |
| michael@0 | 101 | mWhitespaceBeforeFirstToken = true; |
| michael@0 | 102 | ++mIter; |
| michael@0 | 103 | } |
| michael@0 | 104 | } |
| michael@0 | 105 | |
| michael@0 | 106 | /** |
| michael@0 | 107 | * Checks if any more tokens are available. |
| michael@0 | 108 | */ |
| michael@0 | 109 | bool hasMoreTokens() const |
| michael@0 | 110 | { |
| michael@0 | 111 | return mIter < mEnd; |
| michael@0 | 112 | } |
| michael@0 | 113 | |
| michael@0 | 114 | /* |
| michael@0 | 115 | * Returns true if there is whitespace prior to the first token. |
| michael@0 | 116 | */ |
| michael@0 | 117 | bool whitespaceBeforeFirstToken() const |
| michael@0 | 118 | { |
| michael@0 | 119 | return mWhitespaceBeforeFirstToken; |
| michael@0 | 120 | } |
| michael@0 | 121 | |
| michael@0 | 122 | /* |
| michael@0 | 123 | * Returns true if there is any whitespace after the current token. |
| michael@0 | 124 | * This is always true unless we're reading the last token. |
| michael@0 | 125 | */ |
| michael@0 | 126 | bool whitespaceAfterCurrentToken() const |
| michael@0 | 127 | { |
| michael@0 | 128 | return mWhitespaceAfterCurrentToken; |
| michael@0 | 129 | } |
| michael@0 | 130 | |
| michael@0 | 131 | /** |
| michael@0 | 132 | * Returns the next token. |
| michael@0 | 133 | */ |
| michael@0 | 134 | const nsDependentCSubstring nextToken() |
| michael@0 | 135 | { |
| michael@0 | 136 | const mozilla::RangedPtr<const char> tokenStart = mIter; |
| michael@0 | 137 | while (mIter < mEnd && !IsWhitespace(*mIter)) { |
| michael@0 | 138 | ++mIter; |
| michael@0 | 139 | } |
| michael@0 | 140 | const mozilla::RangedPtr<const char> tokenEnd = mIter; |
| michael@0 | 141 | mWhitespaceAfterCurrentToken = false; |
| michael@0 | 142 | while (mIter < mEnd && IsWhitespace(*mIter)) { |
| michael@0 | 143 | mWhitespaceAfterCurrentToken = true; |
| michael@0 | 144 | ++mIter; |
| michael@0 | 145 | } |
| michael@0 | 146 | return Substring(tokenStart.get(), tokenEnd.get()); |
| michael@0 | 147 | } |
| michael@0 | 148 | |
| michael@0 | 149 | private: |
| michael@0 | 150 | mozilla::RangedPtr<const char> mIter; |
| michael@0 | 151 | const mozilla::RangedPtr<const char> mEnd; |
| michael@0 | 152 | bool mWhitespaceBeforeFirstToken; |
| michael@0 | 153 | bool mWhitespaceAfterCurrentToken; |
| michael@0 | 154 | }; |
| michael@0 | 155 | |
| michael@0 | 156 | class nsCWhitespaceTokenizer: public nsCWhitespaceTokenizerTemplate<> |
| michael@0 | 157 | { |
| michael@0 | 158 | public: |
| michael@0 | 159 | nsCWhitespaceTokenizer(const nsCSubstring& aSource) |
| michael@0 | 160 | : nsCWhitespaceTokenizerTemplate<>(aSource) |
| michael@0 | 161 | { |
| michael@0 | 162 | } |
| michael@0 | 163 | }; |
| michael@0 | 164 | |
| michael@0 | 165 | #endif /* __nsWhitespaceTokenizer_h */ |
