/*
 * This file is a part of Winix
 * and is not publicly distributed
 * 
 * Copyright (c) 2010, Tomasz Sowa
 * All rights reserved.
 * 
 */
 
#include "localefilter.h"
#include "../core/misc.h"



LocaleFilter::LocaleFilter()
{
	open_mark    = '{';
	closing_mark = '}';
}



void LocaleFilter::ReadKey()
{
	key.clear();

	for( ; *pchar && *pchar != closing_mark ; ++pchar)
		key += *pchar;

	// skipping last closing mark (if exists)
	if( *pchar == closing_mark )
		++pchar;

	TrimWhite(key);
}


std::string & LocaleFilter::FilterValue(const std::string & in)
{
	value.clear();
	const char * p = in.c_str();

	while( *p )
	{
		if( *p == '\\' && (*(p+1) == 'n') )
		{
			value += '\n';
			p     += 2;
		}
		else
		if( *p == '\\' && (*(p+1) == '\\') )
		{
			value += '\\';
			p     += 2;
		}
		else
		{
			value += *p;
			p     += 1;
		}
	}

return value;
}



void LocaleFilter::Parse(std::string & str)
{
	res.clear();
	pchar = str.c_str();

	while( *pchar )
	{
		if( *pchar == open_mark )
		{
			++pchar;
			ReadKey();
			res += FilterValue(plocale->Get(key, lang));
		}
		else
		if( *pchar == '\\' && (*(pchar+1) == open_mark || *(pchar+1) == closing_mark || *(pchar+1) == '\\') )
		{
			res   += *(pchar+1);
			pchar += 2;
		}
		else
		{
			res   += *pchar;
			pchar += 1;
		}
	}

	str = res;
}




void LocaleFilter::FilterText(Ezc::Pattern::Item & item)
{
	if( !item.text.empty() )
		Parse(item.text);

	std::vector<Ezc::Pattern::Item*>::iterator i = item.item_tab.begin();

	for( ; i != item.item_tab.end() ; ++i )
		FilterText(**i);
}



void LocaleFilter::Filter(Ezc::Pattern & pattern, const Locale & locale, Locale::Lang lang_)
{
	plocale = &locale;
	lang    = lang_;

	FilterText( pattern.item_root );
}