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| 45 | luk | 1 | |
| 2 | /// string tokenizer header |
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| 3 | /** |
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| 4 | * \file strtok.h |
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| 5 | * |
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| 6 | * string tokenizer |
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| 7 | * |
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| 8 | * Copyright (C) 2006 Lukas Jelinek, <lukas@aiken.cz> |
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| 9 | * |
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| 10 | * This program is free software; you can redistribute it and/or |
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| 11 | * modify it under the terms of one of the following licenses: |
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| 12 | * |
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| 13 | * \li 1. X11-style license (see LICENSE-X11) |
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| 14 | * \li 2. GNU Lesser General Public License, version 2.1 (see LICENSE-LGPL) |
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| 15 | * \li 3. GNU General Public License, version 2 (see LICENSE-GPL) |
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| 16 | * |
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| 17 | * If you want to help with choosing the best license for you, |
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| 18 | * please visit http://www.gnu.org/licenses/license-list.html. |
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| 19 | * |
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| 20 | */ |
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| 21 | |||
| 22 | |||
| 23 | #ifndef _STRTOK_H_ |
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| 24 | #define _STRTOK_H_ |
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| 25 | |||
| 26 | |||
| 27 | #include <string> |
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| 28 | |||
| 47 | luk | 29 | /// Simple string tokenizer class. |
| 30 | /** |
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| 31 | * This class implements a string tokenizer. It splits a string |
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| 32 | * by a character to a number of elements (tokens) which are |
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| 33 | * provided sequentially. |
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| 34 | * |
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| 35 | * All operations are made on the original string itself. |
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| 36 | * The implementation is not ready to handle any changes of the |
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| 37 | * string. |
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| 38 | * |
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| 39 | * The original string is left unchanged. All tokens are returned |
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| 40 | * as newly created strings. |
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| 41 | */ |
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| 45 | luk | 42 | class StringTokenizer |
| 43 | { |
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| 44 | public: |
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| 47 | luk | 45 | /// Constructor. |
| 46 | /** |
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| 47 | * Creates a ready-to-use tokenizer. |
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| 48 | * |
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| 49 | * \param[in] rStr string for tokenizing |
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| 50 | * \param[in] cDelim delimiter (separator) character |
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| 51 | */ |
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| 45 | luk | 52 | StringTokenizer(const std::string& rStr, char cDelim = ','); |
| 53 | |||
| 47 | luk | 54 | /// Destructor. |
| 45 | luk | 55 | ~StringTokenizer() {} |
| 56 | |||
| 47 | luk | 57 | /// Checks whether the tokenizer can provide more tokens. |
| 58 | /** |
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| 59 | * \return true = more tokens available, false = otherwise |
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| 60 | */ |
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| 45 | luk | 61 | inline bool HasMoreTokens() const |
| 62 | { |
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| 63 | return m_pos < m_len; |
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| 64 | } |
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| 65 | |||
| 47 | luk | 66 | /// Returns the next token. |
| 67 | /** |
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| 68 | * \return next token or "" if no more tokens available |
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| 69 | */ |
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| 45 | luk | 70 | std::string GetNextToken(); |
| 71 | |||
| 47 | luk | 72 | /// Sets a delimiter (separator) character. |
| 73 | /** |
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| 74 | * The new delimiter has effect only to tokens returned later; |
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| 75 | * the position in the string is not affected. |
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| 76 | * |
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| 77 | * \param[in] cDelim delimiter character |
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| 78 | */ |
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| 45 | luk | 79 | inline void SetDelimiter(char cDelim) |
| 80 | { |
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| 81 | m_cDelim = cDelim; |
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| 82 | } |
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| 83 | |||
| 47 | luk | 84 | /// Returns the delimiter (separator) character. |
| 85 | /** |
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| 86 | * \return delimiter character |
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| 87 | */ |
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| 45 | luk | 88 | inline char GetDelimiter() const |
| 89 | { |
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| 90 | return m_cDelim; |
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| 91 | } |
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| 92 | |||
| 47 | luk | 93 | /// Resets the tokenizer. |
| 94 | /** |
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| 95 | * Re-initializes tokenizing to the start of the string. |
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| 96 | */ |
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| 45 | luk | 97 | inline void Reset() |
| 98 | { |
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| 99 | m_pos = 0; |
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| 100 | } |
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| 101 | |||
| 102 | private: |
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| 47 | luk | 103 | std::string m_str; ///< tokenized string |
| 104 | char m_cDelim; ///< delimiter character |
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| 105 | std::string::size_type m_pos; ///< current position |
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| 106 | std::string::size_type m_len; ///< string length |
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| 45 | luk | 107 | }; |
| 108 | |||
| 109 | |||
| 110 | #endif //_STRTOK_H_ |