tools/qdoc3/openedlist.cpp
changeset 0 1918ee327afb
child 4 3b1da2848fc7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/qdoc3/openedlist.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,228 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the tools applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*
+  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