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/** @file
* This file contains the regexs for parsing the transform attribute of
* an SVG file using DOM.
*
* @see: http://www.w3.org/TR/SVG/coords.html#TransformAttribute
*/
/***************************************************************************
* Copyright (C) 2007 Mark A. Taff <kde@marktaff.com> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Library General Public License *
* version 2 as published by the Free Software Foundation *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#ifndef _KGAMESVGDOCUMENT_P_H_
#define _KGAMESVGDOCUMENT_P_H_
/**
* @brief A regex that matches a single whitespace
*/
static const QString WSP = QStringLiteral("\\s");
/**
* @brief A regex that matches zero or more whitespace
*/
static const QString WSP_ASTERISK = WSP + QLatin1String( "*");
/**
* @brief A regex that matches a comma
*/
static const QLatin1Char COMMA = QLatin1Char( ',' );
/**
* @brief A regex that matches a comma or whitespace
*/
static const QString COMMA_WSP = QLatin1String("(?:(?:" ) + WSP + QLatin1Char( '+' ) + COMMA + QLatin1Char( '?' ) +
WSP + QLatin1String( "*)|(?:" ) + COMMA + WSP + QLatin1String( "*))");
/**
* @brief A regex that matches a number
*/
static const QString NUMBER = QStringLiteral("(?:(?:[-|\\+]?\\d+(?:\\.)*\\d*(?:e)?[-|\\+]?\\d*)|(?:[-|\\+]?(?:\\.)+\\d*(?:e)?[-|\\+]?\\d*))");
// Do not wrap the above line!
/**
* @brief A regex that matches opening parenthesis
*/
static const QString OPEN_PARENS = QStringLiteral("\\(");
/**
* @brief A regex that matches closing parenthesis
*/
static const QString CLOSE_PARENS = QStringLiteral("\\)");
/**
* @brief A regex that matches a matrix transform
*/
static const QString MATRIX = QLatin1String("(matrix)" ) + WSP_ASTERISK + OPEN_PARENS + WSP_ASTERISK +
QLatin1Char( '(' ) + NUMBER + QLatin1Char( ')' ) + COMMA_WSP +
QLatin1Char( '(' ) + NUMBER + QLatin1Char( ')' ) + COMMA_WSP +
QLatin1Char( '(' ) + NUMBER + QLatin1Char( ')' ) + COMMA_WSP +
QLatin1Char( '(' ) + NUMBER + QLatin1Char( ')' ) + COMMA_WSP +
QLatin1Char( '(' ) + NUMBER + QLatin1Char( ')' ) + COMMA_WSP +
QLatin1Char( '(' ) + NUMBER + QLatin1Char( ')' ) + WSP_ASTERISK + CLOSE_PARENS;
/**
* @brief A regex that matches a translate transform
*/
static const QString TRANSLATE = QLatin1String("(translate)" ) + WSP_ASTERISK + OPEN_PARENS + WSP_ASTERISK +
QLatin1Char( '(' ) + NUMBER + QLatin1Char( ')' ) +
QLatin1String( "(?:" ) + COMMA_WSP + QLatin1Char( '(' ) + NUMBER + QLatin1Char( ')' ) + QLatin1String( ")?" ) + WSP_ASTERISK + CLOSE_PARENS;
/**
* @brief A regex that matches scale transform
*/
static const QString SCALE = QLatin1String("(scale)" ) + WSP_ASTERISK + OPEN_PARENS + WSP_ASTERISK +
QLatin1Char( '(' ) + NUMBER + QLatin1Char( ')' ) +
QLatin1String( "(?:" ) + COMMA_WSP + QLatin1Char( '(' ) + NUMBER + QLatin1Char( ')' ) + QLatin1String( ")?" ) + WSP_ASTERISK + CLOSE_PARENS;
/**
* @brief A regex that matches rotate transform
*/
static const QString ROTATE = QLatin1String("(rotate)" ) + WSP_ASTERISK + OPEN_PARENS + WSP_ASTERISK +
QLatin1Char( '(' ) + NUMBER + QLatin1Char( ')' ) + QLatin1String( "(?:" ) + COMMA_WSP +
QLatin1Char( '(' ) + NUMBER + QLatin1Char( ')' ) + COMMA_WSP +
QLatin1Char( '(' ) + NUMBER + QLatin1Char( ')' ) + QLatin1String( ")?" ) + WSP_ASTERISK + CLOSE_PARENS;
/**
* @brief A regex that matches skewX transform
*/
static const QString SKEW_X = QLatin1String( "(skewX)" ) + WSP_ASTERISK + OPEN_PARENS + WSP_ASTERISK +
QLatin1Char( '(' ) + NUMBER + QLatin1Char( ')' ) + WSP_ASTERISK + CLOSE_PARENS;
/**
* @brief A regex that matches skewY transform
*/
static const QString SKEW_Y = QLatin1String("(skewY)" ) + WSP_ASTERISK + OPEN_PARENS + WSP_ASTERISK +
QLatin1Char( '(' ) + NUMBER + QLatin1Char( ')' ) + WSP_ASTERISK + CLOSE_PARENS;
/**
* @brief A regex that matches any single transform
*/
static const QString TRANSFORM = QLatin1String("(?:" ) + MATRIX + QLatin1String( "|" ) + TRANSLATE + QLatin1String( "|" ) + SCALE + QLatin1String( "|" ) +
ROTATE + QLatin1String( "|" ) + SKEW_X + QLatin1String( "|" ) + SKEW_Y + QLatin1String( ")");
/**
* @brief A regex that matches the entire transform attribute
*/
static const QString TRANSFORMS = QLatin1String("(?:" ) + TRANSFORM + QLatin1String( "|" ) + QLatin1String( "(?:" ) + TRANSFORM +
COMMA_WSP + QLatin1String( "+)*" ) + TRANSFORM + QLatin1String( ")");
#endif // _KGAMESVGDOCUMENT_P_H_
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