Mercurial > fife-parpg

annotate engine/core/util/utf8/utf8stringeditor.h @ 504:0196c83c7270

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One quick update to the map file. The last cannonspread5 powerup wasn't correctly identified.
author prock@33b003aa-7bff-0310-803a-e67f0ece8222
date Tue, 18 May 2010 16:01:35 +0000
parents 756b895e1dab
children
rev   line source
228
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1 /***************************************************************************
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2 * Copyright (C) 2009 by the FIFE team *
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3 * http://www.fifengine.de *
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4 * This file is part of FIFE. *
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5 * *
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6 * FIFE is free software; you can redistribute it and/or *
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7 * modify it under the terms of the GNU Lesser General Public *
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8 * License as published by the Free Software Foundation; either *
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9 * version 2.1 of the License, or (at your option) any later version. *
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10 * *
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11 * This library is distributed in the hope that it will be useful, *
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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14 * Lesser General Public License for more details. *
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15 * *
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16 * You should have received a copy of the GNU Lesser General Public *
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17 * License along with this library; if not, write to the *
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18 * Free Software Foundation, Inc., *
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19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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20 ***************************************************************************/
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21
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22 #ifndef GCN_UTF8STRINGEDITOR_HPP
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23 #define GCN_UTF8STRINGEDITOR_HPP
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24
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25 // Standard C++ library includes
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26
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27 // 3rd party library includes
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28 #include <guichan.hpp>
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29
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30 // FIFE includes
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31 // These includes are split up in two parts, separated by one empty line
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32 // First block: files included from the FIFE root src directory
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33 // Second block: files included from the same folder
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34
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35 namespace gcn {
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36
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37 /**
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38 * UTF-8 string editor.
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39 *
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40 * This is a helper class which allows to use UTF-8 strings in
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41 * your application.
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42 *
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43 * @author Przemyslaw Grzywacz
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44 */
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45 class UTF8StringEditor {
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46 public:
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47 /**
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48 * Returns byte offset of the next character.
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49 *
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50 * @param text UTF-8 text to navigate.
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51 * @param byteOffset Byte offset of current character.
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52 * @return Byte offset of the next character.
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53 */
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54 static int nextChar(const std::string& text, int byteOffset);
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55
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56 /**
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57 * Returns byte offset of the previous character.
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58 *
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59 * @param text UTF-8 text to navigate.
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60 * @param byteOffset Byte offset of current character.
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61 * @return Byte offset of the previous character.
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62 */
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63 static int prevChar(const std::string& text, int byteOffset);
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64
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65 /**
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66 * Erase character at specified byte offset.
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67 *
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68 * @param text UTF-8 text to modify.
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69 * @param byteOffset Byte offset of the character to erase.
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70 * @return New byte offset (is equal to byteOffset).
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71 */
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72 static int eraseChar(std::string& text, int byteOffset);
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73
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74 /**
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75 * Insert a character at specified byte offset.
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76 *
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77 * @param text UTF-8 text to modify.
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78 * @param byteOffset Byte offset where character will be inserted.
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79 * @param ch Unicode character to insert.
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80 * @return New byte offset (after the new character).
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81 */
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82 static int insertChar(std::string& text, int byteOffset, int ch);
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83
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84 /**
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85 * Counts characters up to byteOffset.
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86 *
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87 * @param text UTF-8 text to navigate.
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88 * @param byteOffset Byte offset inside the text.
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89 * @return Number of characters.
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90 */
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91 static int countChars(const std::string& text, int byteOffset);
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92
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93 /**
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94 * Gets byte offset for character index.
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95 *
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96 * This method automaticly clips charIndex to be inside
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97 * the string + EOF
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98 *
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99 * @param text UTF-8 text to navigate.
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100 * @param charIndex Character index to move to.
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101 * @return Byte offset of character at charIndex.
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102 */
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103 static int getOffset(const std::string& text, int charIndex);
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104 };
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105
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106 };
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107
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108 #endif // !GCN_UTF8STRINGEDITOR_HPP