Warning: That file was not part of the compilation database. It may have many parsing errors.

1/****************************************************************************
2**
3** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
4** Contact: http://www.qt-project.org/legal
5**
6** This file is part of the tools applications of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and Digia. For licensing terms and
14** conditions see http://qt.digia.com/licensing. For further information
15** use the contact form at http://qt.digia.com/contact-us.
16**
17** GNU Lesser General Public License Usage
18** Alternatively, this file may be used under the terms of the GNU Lesser
19** General Public License version 2.1 as published by the Free Software
20** Foundation and appearing in the file LICENSE.LGPL included in the
21** packaging of this file. Please review the following information to
22** ensure the GNU Lesser General Public License version 2.1 requirements
23** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
24**
25** In addition, as a special exception, Digia gives you certain additional
26** rights. These rights are described in the Digia Qt LGPL Exception
27** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
28**
29** GNU General Public License Usage
30** Alternatively, this file may be used under the terms of the GNU
31** General Public License version 3.0 as published by the Free Software
32** Foundation and appearing in the file LICENSE.GPL included in the
33** packaging of this file. Please review the following information to
34** ensure the GNU General Public License version 3.0 requirements will be
35** met: http://www.gnu.org/copyleft/gpl.html.
36**
37**
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42/*
43 openedlist.cpp
44*/
45
46#include <qregexp.h>
47
48#include "atom.h"
49#include "openedlist.h"
50
51QT_BEGIN_NAMESPACE
52
53static const char roman[] = "m\2d\5c\2l\5x\2v\5i";
54
55OpenedList::OpenedList( Style style )
56 : sty( style ), ini( 1 ), nex( 0 )
57{
58}
59
60OpenedList::OpenedList( const Location& location, const QString& hint )
61 : sty( Bullet ), ini( 1 )
62{
63 QRegExp hintSyntax( "(\\W*)([0-9]+|[A-Z]+|[a-z]+)(\\W*)" );
64
65 if ( hintSyntax.exactMatch(hint) ) {
66 bool ok;
67 int asNumeric = hint.toInt( &ok );
68 int asRoman = fromRoman( hintSyntax.cap(2) );
69 int asAlpha = fromAlpha( hintSyntax.cap(2) );
70
71 if ( ok ) {
72 sty = Numeric;
73 ini = asNumeric;
74 } else if ( asRoman > 0 && asRoman != 100 && asRoman != 500 ) {
75 sty = ( hint == hint.toLower() ) ? LowerRoman : UpperRoman;
76 ini = asRoman;
77 } else {
78 sty = ( hint == hint.toLower() ) ? LowerAlpha : UpperAlpha;
79 ini = asAlpha;
80 }
81 pref = hintSyntax.cap( 1 );
82 suff = hintSyntax.cap( 3 );
83 } else if ( !hint.isEmpty() ) {
84 location.warning( tr("Unrecognized list style '%1'").arg(hint) );
85 }
86 nex = ini - 1;
87}
88
89QString OpenedList::styleString() const
90{
91 switch ( style() ) {
92 case Bullet:
93 default:
94 return ATOM_LIST_BULLET;
95 case Tag:
96 return ATOM_LIST_TAG;
97 case Value:
98 return ATOM_LIST_VALUE;
99 case Numeric:
100 return ATOM_LIST_NUMERIC;
101 case UpperAlpha:
102 return ATOM_LIST_UPPERALPHA;
103 case LowerAlpha:
104 return ATOM_LIST_LOWERALPHA;
105 case UpperRoman:
106 return ATOM_LIST_UPPERROMAN;
107 case LowerRoman:
108 return ATOM_LIST_LOWERROMAN;
109 }
110}
111
112QString OpenedList::numberString() const
113{
114 return QString::number( number() );
115/*
116 switch ( style() ) {
117 case Numeric:
118 return QString::number( number() );
119 case UpperAlpha:
120 return toAlpha( number() ).toUpper();
121 case LowerAlpha:
122 return toAlpha( number() );
123 case UpperRoman:
124 return toRoman( number() ).toUpper();
125 case LowerRoman:
126 return toRoman( number() );
127 case Bullet:
128 default:
129 return "*";
130 }*/
131}
132
133QString OpenedList::toAlpha( int n )
134{
135 QString str;
136
137 while ( n > 0 ) {
138 n--;
139 str.prepend( (n % 26) + 'a' );
140 n /= 26;
141 }
142 return str;
143}
144
145int OpenedList::fromAlpha( const QString& str )
146{
147 int n = 0;
148 int u;
149
150 for ( int i = 0; i < (int) str.length(); i++ ) {
151 u = str[i].toLower().unicode();
152 if ( u >= 'a' && u <= 'z' ) {
153 n *= 26;
154 n += u - 'a' + 1;
155 } else {
156 return 0;
157 }
158 }
159 return n;
160}
161
162QString OpenedList::toRoman( int n )
163{
164 /*
165 See p. 30 of Donald E. Knuth's "TeX: The Program".
166 */
167 QString str;
168 int j = 0;
169 int k;
170 int u;
171 int v = 1000;
172
173 for ( ;; ) {
174 while ( n >= v ) {
175 str += roman[j];
176 n -= v;
177 }
178
179 if ( n <= 0 )
180 break;
181
182 k = j + 2;
183 u = v / roman[k - 1];
184 if ( roman[k - 1] == 2 ) {
185 k += 2;
186 u /= 5;
187 }
188 if ( n + u >= v ) {
189 str += roman[k];
190 n += u;
191 } else {
192 j += 2;
193 v /= roman[j - 1];
194 }
195 }
196 return str;
197}
198
199int OpenedList::fromRoman( const QString& str )
200{
201 int n = 0;
202 int j;
203 int u;
204 int v = 0;
205
206 for ( int i = str.length() - 1; i >= 0; i-- ) {
207 j = 0;
208 u = 1000;
209 while ( roman[j] != 'i' && roman[j] != str[i].toLower() ) {
210 j += 2;
211 u /= roman[j - 1];
212 }
213 if ( u < v ) {
214 n -= u;
215 } else {
216 n += u;
217 }
218 v = u;
219 }
220
221 if ( str.toLower() == toRoman(n) ) {
222 return n;
223 } else {
224 return 0;
225 }
226}
227
228QT_END_NAMESPACE
229

Warning: That file was not part of the compilation database. It may have many parsing errors.