/*
 * uriparser - RFC 3986 URI parsing library
 *
 * Copyright (C) 2007, Weijia Song <songweijia@gmail.com>
 * Copyright (C) 2007, Sebastian Pipping <sebastian@pipping.org>
 * All rights reserved.
 *
 * Redistribution  and use in source and binary forms, with or without
 * modification,  are permitted provided that the following conditions
 * are met:
 *
 *     * Redistributions   of  source  code  must  retain  the   above
 *       copyright  notice, this list of conditions and the  following
 *       disclaimer.
 *
 *     * Redistributions  in  binary  form must  reproduce  the  above
 *       copyright  notice, this list of conditions and the  following
 *       disclaimer   in  the  documentation  and/or  other  materials
 *       provided with the distribution.
 *
 *     * Neither  the name of the <ORGANIZATION> nor the names of  its
 *       contributors  may  be  used to endorse  or  promote  products
 *       derived  from  this software without specific  prior  written
 *       permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS  IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT  NOT
 * LIMITED  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND  FITNESS
 * FOR  A  PARTICULAR  PURPOSE ARE DISCLAIMED. IN NO EVENT  SHALL  THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL,    SPECIAL,   EXEMPLARY,   OR   CONSEQUENTIAL   DAMAGES
 * (INCLUDING,  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES;  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT  LIABILITY,  OR  TORT (INCLUDING  NEGLIGENCE  OR  OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef URI_DOXYGEN
# include "UriParseBase.h"
#endif



void uriWriteQuadToDoubleByte(const unsigned char * hexDigits, int digitCount, unsigned char * output) {
	switch (digitCount) {
	case 1:
		/* 0x___? -> \x00 \x0? */
		output[0] = 0;
		output[1] = hexDigits[0];
		break;

	case 2:
		/* 0x__?? -> \0xx \x?? */
		output[0] = 0;
		output[1] = 16 * hexDigits[0] + hexDigits[1];
		break;

	case 3:
		/* 0x_??? -> \0x? \x?? */
		output[0] = hexDigits[0];
		output[1] = 16 * hexDigits[1] + hexDigits[2];
		break;

	case 4:
		/* 0x???? -> \0?? \x?? */
		output[0] = 16 * hexDigits[0] + hexDigits[1];
		output[1] = 16 * hexDigits[2] + hexDigits[3];
		break;

	}
}



unsigned char uriGetOctetValue(const unsigned char * digits, int digitCount) {
	switch (digitCount) {
	case 1:
		return digits[0];

	case 2:
		return 10 * digits[0] + digits[1];

	case 3:
	default:
		return 100 * digits[0] + 10 * digits[1] + digits[2];

	}
}
