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comparison: xpcom/ds/CharTokenizer.h
xpcom/ds/CharTokenizer.h
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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef mozilla_CharTokenizer_h | |
| 7 #define mozilla_CharTokenizer_h | |
| 8 | |
| 9 #include "nsDependentSubstring.h" | |
| 10 | |
| 11 namespace mozilla { | |
| 12 | |
| 13 template<char16_t delimiter> | |
| 14 class CharTokenizer | |
| 15 { | |
| 16 public: | |
| 17 CharTokenizer(const nsSubstring& aSource) | |
| 18 { | |
| 19 aSource.BeginReading(mIter); | |
| 20 aSource.EndReading(mEnd); | |
| 21 } | |
| 22 | |
| 23 /** | |
| 24 * Checks if any more tokens are available. | |
| 25 */ | |
| 26 bool hasMoreTokens() | |
| 27 { | |
| 28 return mIter != mEnd; | |
| 29 } | |
| 30 | |
| 31 /** | |
| 32 * Returns the next token. | |
| 33 */ | |
| 34 const nsDependentSubstring nextToken() | |
| 35 { | |
| 36 nsSubstring::const_char_iterator begin = mIter; | |
| 37 while (mIter != mEnd && (*mIter) != delimiter) { | |
| 38 ++mIter; | |
| 39 } | |
| 40 nsSubstring::const_char_iterator end = mIter; | |
| 41 if (mIter != mEnd) { | |
| 42 ++mIter; | |
| 43 } | |
| 44 | |
| 45 return Substring(begin, end); | |
| 46 } | |
| 47 | |
| 48 private: | |
| 49 nsSubstring::const_char_iterator mIter, mEnd; | |
| 50 }; | |
| 51 | |
| 52 template<char delimiter> | |
| 53 class CCharTokenizer | |
| 54 { | |
| 55 public: | |
| 56 CCharTokenizer(const nsCSubstring& aSource) | |
| 57 { | |
| 58 aSource.BeginReading(mIter); | |
| 59 aSource.EndReading(mEnd); | |
| 60 } | |
| 61 | |
| 62 /** | |
| 63 * Checks if any more tokens are available. | |
| 64 */ | |
| 65 bool hasMoreTokens() | |
| 66 { | |
| 67 return mIter != mEnd; | |
| 68 } | |
| 69 | |
| 70 /** | |
| 71 * Returns the next token. | |
| 72 */ | |
| 73 const nsDependentCSubstring nextToken() | |
| 74 { | |
| 75 nsCSubstring::const_char_iterator begin = mIter; | |
| 76 while (mIter != mEnd && (*mIter) != delimiter) { | |
| 77 ++mIter; | |
| 78 } | |
| 79 nsCSubstring::const_char_iterator end = mIter; | |
| 80 if (mIter != mEnd) { | |
| 81 ++mIter; | |
| 82 } | |
| 83 | |
| 84 return Substring(begin, end); | |
| 85 } | |
| 86 | |
| 87 private: | |
| 88 nsCSubstring::const_char_iterator mIter, mEnd; | |
| 89 }; | |
| 90 | |
| 91 } // namespace mozilla | |
| 92 | |
| 93 #endif /* mozilla_CharTokenizer_h */ |
