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/***************************************************************************
PreFormatter.cpp - description
-------------------
begin : Mo Jan 03 2005
copyright : (C) 2005-2008 by Andre Simon
email : andre.simon1@gmx.de
***************************************************************************/
/*
This file is part of Highlight.
Highlight 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 3 of the License, or
(at your option) any later version.
Highlight 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with Highlight. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PreFormatter_H
#define PreFormatter_H
#include <string>
#include <set>
namespace highlight
{
/** \brief Class which provides intelligent line wrapping.
* @author Andre Simon
*/
class PreFormatter
{
public:
PreFormatter();
~PreFormatter();
/**
Set wrapping mode
\param wrap set to true if long lines should be wrapped
*/
void setWrap ( bool wrap ) {wrapLines = wrap;}
/**
Replace tabs by spaces
\param replTabs set to true if tabs should be replaced by spaces
*/
void setReplaceTabs ( bool replTabs ) {replaceTabs = replTabs;}
/**
\return True if current line can be wrapped again
*/
bool hasMoreLines();
/**
Sets new line to be wrapped
\param newline New line
*/
void setLine ( const std::string & newline );
/**
The method will indent function calls and statements
\return Next line
*/
std::string getNextLine();
/**
\return True if lines following open braces should be indented
*/
bool indentCode();
/**
Maximum line length
\param maxlength max. length of output lines
*/
void setWrapLineLength ( unsigned int maxlength );
/**
Indentation mode
\param indentAfterOpenBraces set true if lines should be indented after braces
*/
void setWrapIndentBraces ( bool indentAfterOpenBraces=true );
/**
Number of spaces
\param num number of spaces which replace a tab
*/
void setNumberSpaces ( unsigned int num );
/**
\return true if preformatting is enabled
*/
bool isEnabled()
{
return wrapLines || replaceTabs;
}
/**
reset preformatting state to use the object with new input data
*/
void reset ()
{
lineNumber=0;
wrappedLines.clear();
}
/**
\param lineNumber line number
\return true if input line linenumber was wrapped
*/
bool isWrappedLine ( int lineNumber )
{
return wrappedLines.count ( lineNumber );
}
private:
unsigned int maxLineLength;
std::string line, wsPrefix;
unsigned int index;
unsigned int numberSpaces;
unsigned int lineNumber;
size_t wsPrefixLength;
bool hasMore, indentAfterOpenBraces;
bool redefineWsPrefix;
bool wrapLines, replaceTabs;
std::set<int> wrappedLines;
static const std::string LB_CHARS;
static const std::string WS_CHARS;
static const std::string INDENT_MARKERS;
};
}
#endif
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