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/*
* Copyright (C) 2002 Roberto Raggi (roberto@kdevelop.org)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* 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 General Public License
* along with this program; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
#include "python_indent.h"
#include "qeditor.h"
#include "paragdata.h"
#include <kdebug.h>
PythonIndent::PythonIndent( QEditor* ed )
: QEditorIndenter( ed ),
rxLineEndedWithAColon( "^[^#]*:\\s*(#.*)?$" ),
rxStopExecutionStmt( "^\\s*(break|continue|raise|return|pass)\\b.*" ),
rxHeaderKeyword( "^\\s*(elif|else|except|finaly)\\b.*" ),
rxOneLinerStmt( "^\\s*(for|if|try)\\b.*" )
{
}
PythonIndent::~PythonIndent()
{
}
int PythonIndent::indentForLine( int line )
{
if( line == 0 )
return 0;
int prevLine = QMAX( 0, previousNonBlankLine( line ) );
int sw = 4;
QString lineText = editor()->text( line );
QString prevLineText = editor()->text( prevLine );
int lineInd = indentation( lineText );
int prevLineInd = indentation( prevLineText );
int extraInd = 0;
ParagData* data = (ParagData*) editor()->document()->paragAt( prevLine )->extraData();
if( data ){
QValueList<Symbol> symbolList = data->symbolList();
QValueList<Symbol>::Iterator it = symbolList.begin();
while( it != symbolList.end() ){
const Symbol& sym = *it;
++it;
if ( sym.type() == Symbol::Left )
extraInd += 4;
else if( sym.type() == Symbol::Right )
extraInd -= 4;
}
}
if( rxLineEndedWithAColon.exactMatch(prevLineText) ){
return QMAX( prevLineInd + sw + extraInd, 0 );
} else if( rxStopExecutionStmt.exactMatch(prevLineText) ){
return QMAX( prevLineInd + sw + extraInd, 0 );
} else if( rxHeaderKeyword.exactMatch(lineText) ){
if( rxOneLinerStmt.exactMatch(prevLineText) )
return QMAX( prevLineInd + extraInd, 0 );
return QMAX( prevLineInd - sw + extraInd, 0 );
} else
return QMAX( prevLineInd + extraInd, 0 );
}
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