Mercurial > fife-parpg

annotate engine/core/util/utf8/utf8stringeditor.cpp @ 526:c916d7b7de1c

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added the goldstack image as I forgot to add it before.
author prock@33b003aa-7bff-0310-803a-e67f0ece8222
date Fri, 28 May 2010 04:15:56 +0000
parents 756b895e1dab
children
rev   line source
228
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
1 /***************************************************************************
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
2 * Copyright (C) 2009 by the FIFE team *
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
3 * http://www.fifengine.de *
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
4 * This file is part of FIFE. *
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
5 * *
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
6 * FIFE is free software; you can redistribute it and/or *
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
7 * modify it under the terms of the GNU Lesser General Public *
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
8 * License as published by the Free Software Foundation; either *
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
9 * version 2.1 of the License, or (at your option) any later version. *
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
10 * *
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
11 * This library is distributed in the hope that it will be useful, *
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
14 * Lesser General Public License for more details. *
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
15 * *
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
16 * You should have received a copy of the GNU Lesser General Public *
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
17 * License along with this library; if not, write to the *
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
18 * Free Software Foundation, Inc., *
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
20 ***************************************************************************/
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
21
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
22 // Standard C++ library includes
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
23 #include <iostream>
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
24
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
25 // 3rd party library includes
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
26
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
27 // FIFE includes
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
28 // These includes are split up in two parts, separated by one empty line
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
29 // First block: files included from the FIFE root src directory
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
30 // Second block: files included from the same folder
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
31 #include "utf8stringeditor.h"
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
32 #include "utf8.h"
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
33
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
34 namespace gcn {
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
35
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
36 int UTF8StringEditor::nextChar(const std::string & text, int byteOffset)
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
37 {
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
38 std::string::const_iterator c, e;
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
39
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
40 c = text.begin() + byteOffset;
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
41 e = text.end();
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
42
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
43 utf8::next(c, e);
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
44 return std::string(text.begin(), c).size();
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
45 }
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
46
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
47 int UTF8StringEditor::prevChar(const std::string & text, int byteOffset)
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
48 {
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
49 std::string::const_iterator c, b;
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
50
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
51 c = text.begin() + byteOffset;
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
52 b = text.begin();
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
53
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
54 utf8::prior(c, b);
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
55 return std::string(b, c).size();
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
56 }
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
57
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
58 int UTF8StringEditor::eraseChar(std::string & text, int byteOffset)
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
59 {
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
60 std::string::iterator begin, cur;
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
61 begin = text.begin() + byteOffset;
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
62 cur = begin;
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
63 utf8::next(cur, text.end());
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
64
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
65 text = std::string(text.begin(), begin) + std::string(cur, text.end());
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
66 return byteOffset; // this shouldn't change!
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
67 }
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
68
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
69 int UTF8StringEditor::insertChar(std::string & text, int byteOffset, int ch)
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
70 {
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
71 std::string newText;
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
72 std::string::iterator cut;
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
73 int newOffset;
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
74
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
75 // make a temp string from left part of the caret (+6 extra chars)
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
76 newText = text.substr(0, byteOffset) + " ";
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
77 // append character
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
78 utf8::append(ch, newText.begin() + byteOffset);
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
79 // calculate newText real length
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
80 cut = newText.begin() + byteOffset;
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
81 utf8::next(cut, newText.end());
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
82 // cut the string to real length
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
83 newText = std::string(newText.begin(), cut);
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
84 newOffset = newText.size();
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
85 // make new text
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
86 text = newText + text.substr(byteOffset);
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
87
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
88 return newOffset;
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
89 }
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
90
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
91 int UTF8StringEditor::countChars(const std::string & text, int byteOffset)
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
92 {
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
93 return utf8::distance(text.begin(), text.begin() + byteOffset);
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
94 }
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
95
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
96 int UTF8StringEditor::getOffset(const std::string & text, int charIndex)
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
97 {
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
98 std::string::const_iterator cur, end;
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
99 int bytes = 0, i;
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
100
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
101 if (charIndex < 0) return 0;
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
102
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
103 cur = text.begin();
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
104 end = text.end();
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
105
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
106 for(i = 0; i < charIndex && cur != end; i++) {
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
107 utf8::next(cur, end);
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
108 }
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
109
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
110 return std::string(text.begin(), cur).size();
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
111 }
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
112 };
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
113
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
114
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
115
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
116
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
117
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
118