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/***************************************************************************
 *   Copyright (C) 2005 by Joris Guisson                                   *
 *   joris.guisson@gmail.com                                               *
 *                                                                         *
 *   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 General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU 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.             *
 ***************************************************************************/
#include "urlencoder.h"


namespace bt
{
	TQString hex[] = {
		"%00", "%01", "%02", "%03", "%04", "%05", "%06", "%07",
		"%08", "%09", "%0a", "%0b", "%0c", "%0d", "%0e", "%0f",
		"%10", "%11", "%12", "%13", "%14", "%15", "%16", "%17",
		"%18", "%19", "%1a", "%1b", "%1c", "%1d", "%1e", "%1f",
		"%20", "%21", "%22", "%23", "%24", "%25", "%26", "%27",
		"%28", "%29", "%2a", "%2b", "%2c", "%2d", "%2e", "%2f",
		"%30", "%31", "%32", "%33", "%34", "%35", "%36", "%37",
		"%38", "%39", "%3a", "%3b", "%3c", "%3d", "%3e", "%3f",
		"%40", "%41", "%42", "%43", "%44", "%45", "%46", "%47",
		"%48", "%49", "%4a", "%4b", "%4c", "%4d", "%4e", "%4f",
		"%50", "%51", "%52", "%53", "%54", "%55", "%56", "%57",
		"%58", "%59", "%5a", "%5b", "%5c", "%5d", "%5e", "%5f",
		"%60", "%61", "%62", "%63", "%64", "%65", "%66", "%67",
		"%68", "%69", "%6a", "%6b", "%6c", "%6d", "%6e", "%6f",
		"%70", "%71", "%72", "%73", "%74", "%75", "%76", "%77",
		"%78", "%79", "%7a", "%7b", "%7c", "%7d", "%7e", "%7f",
		"%80", "%81", "%82", "%83", "%84", "%85", "%86", "%87",
		"%88", "%89", "%8a", "%8b", "%8c", "%8d", "%8e", "%8f",
		"%90", "%91", "%92", "%93", "%94", "%95", "%96", "%97",
		"%98", "%99", "%9a", "%9b", "%9c", "%9d", "%9e", "%9f",
		"%a0", "%a1", "%a2", "%a3", "%a4", "%a5", "%a6", "%a7",
		"%a8", "%a9", "%aa", "%ab", "%ac", "%ad", "%ae", "%af",
		"%b0", "%b1", "%b2", "%b3", "%b4", "%b5", "%b6", "%b7",
		"%b8", "%b9", "%ba", "%bb", "%bc", "%bd", "%be", "%bf",
		"%c0", "%c1", "%c2", "%c3", "%c4", "%c5", "%c6", "%c7",
		"%c8", "%c9", "%ca", "%cb", "%cc", "%cd", "%ce", "%cf",
		"%d0", "%d1", "%d2", "%d3", "%d4", "%d5", "%d6", "%d7",
		"%d8", "%d9", "%da", "%db", "%dc", "%dd", "%de", "%df",
		"%e0", "%e1", "%e2", "%e3", "%e4", "%e5", "%e6", "%e7",
		"%e8", "%e9", "%ea", "%eb", "%ec", "%ed", "%ee", "%ef",
		"%f0", "%f1", "%f2", "%f3", "%f4", "%f5", "%f6", "%f7",
		"%f8", "%f9", "%fa", "%fb", "%fc", "%fd", "%fe", "%ff"
	};


	TQString URLEncoder::encode(const char* buf,Uint32 size)
	{
		TQString res = "";
		
		for (Uint32 i = 0; i < size; i++) 
		{
			Uint8 ch = buf[i];
			if (('A' <= ch && ch <= 'Z') || ('a' <= ch && ch <= 'z') || ('0' <= ch && ch <= '9'))
			{		// 'A'..'Z'
				res.append((char)ch);
			} 
			else if (ch == ' ') 
			{			// space
				res.append("%20");
			}
			else if (ch == '-' || ch == '_'		// unreserved
				    || ch == '.' || ch == '!'
					|| ch == '~' || ch == '*'
					|| ch == '\'' || ch == '('
					|| ch == ')') 
			{
				res.append((char)ch);
			} 
			else 
			{		// other ASCII
				res.append(hex[ch]);
			} 
		}
		return res;
	}

}