[657] | 1 | /************************************************************************
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| 2 | filename: CEGUITextUtils.h
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| 3 | created: 30/5/2004
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| 4 | author: Paul D Turner
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| 5 |
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| 6 | purpose: Interface to a static class containing some utility
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| 7 | functions for text / string operations
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| 8 | *************************************************************************/
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| 9 | /*************************************************************************
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| 10 | Crazy Eddie's GUI System (http://www.cegui.org.uk)
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| 11 | Copyright (C)2004 - 2005 Paul D Turner (paul@cegui.org.uk)
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| 12 |
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| 13 | This library is free software; you can redistribute it and/or
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| 14 | modify it under the terms of the GNU Lesser General Public
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| 15 | License as published by the Free Software Foundation; either
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| 16 | version 2.1 of the License, or (at your option) any later version.
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| 17 |
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| 18 | This library is distributed in the hope that it will be useful,
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| 19 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 21 | Lesser General Public License for more details.
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| 22 |
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| 23 | You should have received a copy of the GNU Lesser General Public
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| 24 | License along with this library; if not, write to the Free Software
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| 25 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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| 26 | *************************************************************************/
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| 27 | #ifndef _CEGUITextUtils_h_
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| 28 | #define _CEGUITextUtils_h_
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| 29 |
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| 30 | #include "CEGUIBase.h"
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| 31 | #include "CEGUIString.h"
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| 32 |
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| 33 | // Start of CEGUI namespace section
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| 34 | namespace CEGUI
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| 35 | {
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| 36 | /*!
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| 37 | \brief
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| 38 | Text utility support class. This class is all static members. You do not create instances of this class.
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| 39 | */
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| 40 | class CEGUIEXPORT TextUtils
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| 41 | {
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| 42 | public:
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| 43 | /*************************************************************************
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| 44 | Constants
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| 45 | *************************************************************************/
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| 46 | static const String DefaultWhitespace; //!< The default set of whitespace
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| 47 | static const String DefaultAlphanumerical; //!< default set of alphanumericals.
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| 48 | static const String DefaultWrapDelimiters; //!< The default set of word-wrap delimiters
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| 49 |
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| 50 |
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| 51 | /*************************************************************************
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| 52 | Methods
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| 53 | *************************************************************************/
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| 54 | /*!
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| 55 | \brief
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| 56 | return a String containing the the next word in a String.
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| 57 |
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| 58 | This method returns a String object containing the the word, starting at index \a start_idx, of String \a str
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| 59 | as delimited by the code points specified in string \a delimiters (or the ends of the input string).
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| 60 |
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| 61 | \param str
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| 62 | String object containing the input data.
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| 63 |
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| 64 | \param start_idx
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| 65 | index into \a str where the search for the next word is to begin. Defaults to start of \a str.
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| 66 |
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| 67 | \param delimiters
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| 68 | String object containing the set of delimiter code points to be used when determining the start and end
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| 69 | points of a word in string \a str. Defaults to whitespace.
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| 70 |
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| 71 | \return
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| 72 | String object containing the next \a delimiters delimited word from \a str, starting at index \a start_idx.
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| 73 | */
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| 74 | static String getNextWord(const String& str, String::size_type start_idx = 0, const String& delimiters = DefaultWhitespace);
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| 75 |
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| 76 |
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| 77 | /*!
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| 78 | \brief
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| 79 | Return the index of the first character of the word at \a idx.
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| 80 |
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| 81 | /note
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| 82 | This currently uses DefaultWhitespace and DefaultAlphanumerical to determine groupings for what constitutes a 'word'.
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| 83 |
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| 84 | \param str
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| 85 | String containing text.
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| 86 |
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| 87 | \param idx
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| 88 | Index into \a str where search for start of word is to begin.
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| 89 |
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| 90 | \return
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| 91 | Index into \a str which marks the begining of the word at index \a idx.
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| 92 | */
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| 93 | static String::size_type getWordStartIdx(const String& str, String::size_type idx);
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| 94 |
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| 95 |
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| 96 | /*!
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| 97 | \brief
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| 98 | Return the index of the first character of the word after the word at \a idx.
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| 99 |
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| 100 | /note
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| 101 | This currently uses DefaultWhitespace and DefaultAlphanumerical to determine groupings for what constitutes a 'word'.
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| 102 |
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| 103 | \param str
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| 104 | String containing text.
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| 105 |
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| 106 | \param idx
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| 107 | Index into \a str where search is to begin.
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| 108 |
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| 109 | \return
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| 110 | Index into \a str which marks the begining of the word at after the word at index \a idx.
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| 111 | If \a idx is within the last word, then the return is the last index in \a str.
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| 112 | */
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| 113 | static String::size_type getNextWordStartIdx(const String& str, String::size_type idx);
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| 114 |
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| 115 |
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| 116 | /*!
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| 117 | \brief
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| 118 | Trim all characters from the set specified in \a chars from the begining of \a str.
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| 119 |
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| 120 | \param str
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| 121 | String object to be trimmed.
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| 122 |
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| 123 | \param chars
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| 124 | String object containing the set of code points to be trimmed.
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| 125 | */
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| 126 | static void trimLeadingChars(String& str, const String& chars);
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| 127 |
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| 128 |
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| 129 | /*!
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| 130 | \brief
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| 131 | Trim all characters from the set specified in \a chars from the end of \a str.
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| 132 |
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| 133 | \param str
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| 134 | String object to be trimmed.
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| 135 |
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| 136 | \param chars
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| 137 | String object containing the set of code points to be trimmed.
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| 138 | */
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| 139 | static void trimTrailingChars(String& str, const String& chars);
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| 140 |
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| 141 |
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| 142 | private:
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| 143 | /*************************************************************************
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| 144 | Data
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| 145 | *************************************************************************/
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| 146 | static String d_delimiters; //!< Current set of delimiters.
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| 147 | static String d_whitespace; //!< Current set of whitespace.
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| 148 |
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| 149 |
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| 150 | /*************************************************************************
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| 151 | Construction / Destruction
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| 152 | *************************************************************************/
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| 153 | /*!
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| 154 | \brief
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| 155 | Constructor and Destructor are private. This class has all static members.
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| 156 | */
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| 157 | TextUtils(void);
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| 158 | ~TextUtils(void);
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| 159 | };
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| 160 |
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| 161 | } // End of CEGUI namespace section
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| 162 |
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| 163 |
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| 164 | #endif // end of guard _CEGUITextUtils_h_
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