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112 lines
4.1 KiB
112 lines
4.1 KiB
/*
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kregexp3.h
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This file is part of libtdenetwork.
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Copyright (c) 2001 Marc Mutz <mutz@kde.org>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License,
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version 2, as published by the Free Software Foundation.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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In addition, as a special exception, the copyright holders give
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permission to link the code of this library with any edition of
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the TQt library by Trolltech AS, Norway (or with modified versions
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of TQt that use the same license as TQt), and distribute linked
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combinations including the two. You must obey the GNU General
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Public License in all respects for all of the code used other than
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TQt. If you modify this file, you may extend this exception to
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your version of the file, but you are not obligated to do so. If
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you do not wish to do so, delete this exception statement from
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your version.
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*/
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#include <tqglobal.h>
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#include <tqregexp.h>
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#include <tqstring.h>
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#include <tdepimmacros.h>
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/** @short A TQRegExp (TQt3.x) with a replace() method.
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This class is simply there to provide a namespace for some nice
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enhancements of the mighty TQRegExp (TQt3 version) regular
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expression engine, namely the method replace(), which can be
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used to do search-and-replace like one is used to from perl or sed.
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It "simply" adds the ability to define a replacement string which
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contains references to the captured substrings. The following
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constructs are understood, which can be freely mixed in the
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replacement string:
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@section Sed syntax
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Back references in the replacement string are made using \n
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(backslash-digit), where @p n is a single digit. With this mode of
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operation, only the first nine captured substrings can be
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referenced.
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NOTE: Remember that C++ interprets the backslash in string
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constants, so you have to write a backslash as "\\".
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@section Perl syntax
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Back references in the replacement string are made using $n
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(dollarsign-digit), where @p n is a single digit. With this mode
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of operation, only the first nine captured substrings can be
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referenced.
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Additionally, Perl supports the syntax ${nn}
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(dollarSign-leftCurlyBrace-digits-rightCurlyBrace), where @p nn
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can be a multi-digit number.
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In all modes, counting of captured substrings starts with 1 (one)!
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To reference the entire matched string, use $0, ${0} or \\0.
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@author Marc Mutz <mutz@kde.org>
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@see TQRegExp
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*/
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class KDE_EXPORT KRegExp3 : public TQRegExp
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{
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public:
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KRegExp3()
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: TQRegExp() {}
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KRegExp3( const TQString & pattern,
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bool caseSensitive = TRUE,
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bool wildcard = FALSE )
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: TQRegExp( pattern, caseSensitive, wildcard ) {}
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KRegExp3( const TQRegExp & rx )
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: TQRegExp( rx ) {}
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KRegExp3( const KRegExp3 & rx )
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: TQRegExp( (TQRegExp)rx ) {}
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/** Replaces each matching subpattern in @p str with
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@p replacementStr, inserting captured substrings for
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\\n, $n and ${nn} as described in the class documentation.
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@param str The source string.
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@param replacementStr The string which replaces matched
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substrings of @p str.
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@param start Start position for the search.
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If @p start is negative, starts @p -(start) positions
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from the end of @p str.
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@param global If @p TRUE, requests to replace all occurrences
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of the regexp with @p replacementStr; if @p FALSE,
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only the first occurrence will be replaced.
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Equivalent to the /g switch to perl's s/// operator.
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@return The modified string.
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*/
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TQString replace( const TQString & str,
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const TQString & replacementStr,
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int start=0, bool global=TRUE );
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};
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