michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef mozilla_CharTokenizer_h
michael@0: #define mozilla_CharTokenizer_h
michael@0: 
michael@0: #include "nsDependentSubstring.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: 
michael@0: template<char16_t delimiter>
michael@0: class CharTokenizer
michael@0: {
michael@0: public:
michael@0:     CharTokenizer(const nsSubstring& aSource)
michael@0:     {
michael@0:       aSource.BeginReading(mIter);
michael@0:       aSource.EndReading(mEnd);
michael@0:     }
michael@0: 
michael@0:     /**
michael@0:      * Checks if any more tokens are available.
michael@0:      */
michael@0:     bool hasMoreTokens()
michael@0:     {
michael@0:       return mIter != mEnd;
michael@0:     }
michael@0: 
michael@0:     /**
michael@0:      * Returns the next token.
michael@0:      */
michael@0:     const nsDependentSubstring nextToken()
michael@0:     {
michael@0:       nsSubstring::const_char_iterator begin = mIter;
michael@0:       while (mIter != mEnd && (*mIter) != delimiter) {
michael@0:         ++mIter;
michael@0:       }
michael@0:       nsSubstring::const_char_iterator end = mIter;
michael@0:       if (mIter != mEnd) {
michael@0:         ++mIter;
michael@0:       }
michael@0: 
michael@0:       return Substring(begin, end);
michael@0:     }
michael@0: 
michael@0: private:
michael@0:     nsSubstring::const_char_iterator mIter, mEnd;
michael@0: };
michael@0: 
michael@0: template<char delimiter>
michael@0: class CCharTokenizer
michael@0: {
michael@0: public:
michael@0:     CCharTokenizer(const nsCSubstring& aSource)
michael@0:     {
michael@0:       aSource.BeginReading(mIter);
michael@0:       aSource.EndReading(mEnd);
michael@0:     }
michael@0: 
michael@0:     /**
michael@0:      * Checks if any more tokens are available.
michael@0:      */
michael@0:     bool hasMoreTokens()
michael@0:     {
michael@0:       return mIter != mEnd;
michael@0:     }
michael@0: 
michael@0:     /**
michael@0:      * Returns the next token.
michael@0:      */
michael@0:     const nsDependentCSubstring nextToken()
michael@0:     {
michael@0:       nsCSubstring::const_char_iterator begin = mIter;
michael@0:       while (mIter != mEnd && (*mIter) != delimiter) {
michael@0:         ++mIter;
michael@0:       }
michael@0:       nsCSubstring::const_char_iterator end = mIter;
michael@0:       if (mIter != mEnd) {
michael@0:         ++mIter;
michael@0:       }
michael@0: 
michael@0:       return Substring(begin, end);
michael@0:     }
michael@0: 
michael@0: private:
michael@0:     nsCSubstring::const_char_iterator mIter, mEnd;
michael@0: };
michael@0: 
michael@0: } // namespace mozilla
michael@0: 
michael@0: #endif /* mozilla_CharTokenizer_h */