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Diffstat (limited to 'src/tools/qdoc/openedlist.cpp')
| -rw-r--r-- | src/tools/qdoc/openedlist.cpp | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/src/tools/qdoc/openedlist.cpp b/src/tools/qdoc/openedlist.cpp new file mode 100644 index 0000000000..9fa93f0d28 --- /dev/null +++ b/src/tools/qdoc/openedlist.cpp @@ -0,0 +1,228 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the tools applications of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/* + openedlist.cpp +*/ + +#include <qregexp.h> + +#include "atom.h" +#include "openedlist.h" + +QT_BEGIN_NAMESPACE + +static const char roman[] = "m\2d\5c\2l\5x\2v\5i"; + +OpenedList::OpenedList( Style style ) + : sty( style ), ini( 1 ), nex( 0 ) +{ +} + +OpenedList::OpenedList( const Location& location, const QString& hint ) + : sty( Bullet ), ini( 1 ) +{ + QRegExp hintSyntax( "(\\W*)([0-9]+|[A-Z]+|[a-z]+)(\\W*)" ); + + if ( hintSyntax.exactMatch(hint) ) { + bool ok; + int asNumeric = hint.toInt( &ok ); + int asRoman = fromRoman( hintSyntax.cap(2) ); + int asAlpha = fromAlpha( hintSyntax.cap(2) ); + + if ( ok ) { + sty = Numeric; + ini = asNumeric; + } else if ( asRoman > 0 && asRoman != 100 && asRoman != 500 ) { + sty = ( hint == hint.toLower() ) ? LowerRoman : UpperRoman; + ini = asRoman; + } else { + sty = ( hint == hint.toLower() ) ? LowerAlpha : UpperAlpha; + ini = asAlpha; + } + pref = hintSyntax.cap( 1 ); + suff = hintSyntax.cap( 3 ); + } else if ( !hint.isEmpty() ) { + location.warning( tr("Unrecognized list style '%1'").arg(hint) ); + } + nex = ini - 1; +} + +QString OpenedList::styleString() const +{ + switch ( style() ) { + case Bullet: + default: + return ATOM_LIST_BULLET; + case Tag: + return ATOM_LIST_TAG; + case Value: + return ATOM_LIST_VALUE; + case Numeric: + return ATOM_LIST_NUMERIC; + case UpperAlpha: + return ATOM_LIST_UPPERALPHA; + case LowerAlpha: + return ATOM_LIST_LOWERALPHA; + case UpperRoman: + return ATOM_LIST_UPPERROMAN; + case LowerRoman: + return ATOM_LIST_LOWERROMAN; + } +} + +QString OpenedList::numberString() const +{ + return QString::number( number() ); + /* + switch ( style() ) { + case Numeric: + return QString::number( number() ); + case UpperAlpha: + return toAlpha( number() ).toUpper(); + case LowerAlpha: + return toAlpha( number() ); + case UpperRoman: + return toRoman( number() ).toUpper(); + case LowerRoman: + return toRoman( number() ); + case Bullet: + default: + return "*"; + }*/ +} + +QString OpenedList::toAlpha( int n ) +{ + QString str; + + while ( n > 0 ) { + n--; + str.prepend( (n % 26) + 'a' ); + n /= 26; + } + return str; +} + +int OpenedList::fromAlpha( const QString& str ) +{ + int n = 0; + int u; + + for ( int i = 0; i < (int) str.length(); i++ ) { + u = str[i].toLower().unicode(); + if ( u >= 'a' && u <= 'z' ) { + n *= 26; + n += u - 'a' + 1; + } else { + return 0; + } + } + return n; +} + +QString OpenedList::toRoman( int n ) +{ + /* + See p. 30 of Donald E. Knuth's "TeX: The Program". + */ + QString str; + int j = 0; + int k; + int u; + int v = 1000; + + for ( ;; ) { + while ( n >= v ) { + str += roman[j]; + n -= v; + } + + if ( n <= 0 ) + break; + + k = j + 2; + u = v / roman[k - 1]; + if ( roman[k - 1] == 2 ) { + k += 2; + u /= 5; + } + if ( n + u >= v ) { + str += roman[k]; + n += u; + } else { + j += 2; + v /= roman[j - 1]; + } + } + return str; +} + +int OpenedList::fromRoman( const QString& str ) +{ + int n = 0; + int j; + int u; + int v = 0; + + for ( int i = str.length() - 1; i >= 0; i-- ) { + j = 0; + u = 1000; + while ( roman[j] != 'i' && roman[j] != str[i].toLower() ) { + j += 2; + u /= roman[j - 1]; + } + if ( u < v ) { + n -= u; + } else { + n += u; + } + v = u; + } + + if ( str.toLower() == toRoman(n) ) { + return n; + } else { + return 0; + } +} + +QT_END_NAMESPACE |