/*
 * uriparser - RFC 3986 URI parsing library
 *
 * Copyright (C) 2007, Weijia Song <songweijia@gmail.com>
 * Copyright (C) 2007, Sebastian Pipping <webmaster@hartwork.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.
 */

/* What encodings are enabled? */
#include <uriparser/UriDefsConfig.h>

#if (!defined(URI_PASS_ANSI) && !defined(URI_PASS_UNICODE))

/* Include SELF twice */
# define URI_PASS_ANSI 1

# include "UriFile.c"

# undef URI_PASS_ANSI

# define URI_PASS_UNICODE 1

# include "UriFile.c"

# undef URI_PASS_UNICODE

#else

# ifdef URI_PASS_ANSI

#  include <uriparser/UriDefsAnsi.h>

# else

#  include <uriparser/UriDefsUnicode.h>

#  include <wchar.h>

# endif




#ifndef URI_DOXYGEN

# include <uriparser/Uri.h>

#endif




static URI_INLINE int URI_FUNC(FilenameToUriString)(const URI_CHAR * filename,
		URI_CHAR * uriString, UriBool fromUnix) {
	const URI_CHAR * const prefix = fromUnix ? _UT("file://") : _UT("file:///");
	const int prefixLen = fromUnix ? 7 : 8;

	const URI_CHAR * input = filename;
	URI_CHAR * output = uriString + prefixLen;
	const URI_CHAR * lastSep = input - 1;
	UriBool firstSegment = URI_TRUE;

	/* Copy prefix */
	memcpy(uriString, prefix, prefixLen * sizeof(URI_CHAR));

	/* Copy and escape on the fly */
	for (;;) {
		if ((input[0] == _UT('\0'))
				|| (fromUnix && input[0] == _UT('/'))
				|| (!fromUnix && input[0] == _UT('\\'))) {
			/* Copy text after last seperator */
			if (lastSep + 1 < input) {
				if (!fromUnix && (firstSegment == URI_TRUE)) {
					/* Quick hack to not convert "C:" to "C%3A" */
					const int charsToCopy = (int)(input - (lastSep + 1));
					memcpy(output, lastSep + 1, charsToCopy * sizeof(URI_CHAR));
					output += charsToCopy;
				} else {
					output = URI_FUNC(EscapeEx)(lastSep + 1, input, output,
							URI_FALSE, URI_FALSE);
				}
			}
			firstSegment = URI_FALSE;
		}

		if (input[0] == _UT('\0')) {
			output[0] = _UT('\0');
			break;
		} else if (fromUnix && (input[0] == _UT('/'))) {
			/* Copy separators unmodified */
			output[0] = _UT('/');
			output++;
			lastSep = input;
		} else if (!fromUnix && (input[0] == _UT('\\'))) {
			/* Convert backslashes to forward slashes */
			output[0] = _UT('/');
			output++;
			lastSep = input;
		}
		input++;
	}

	return URI_SUCCESS;
}



static URI_INLINE int URI_FUNC(UriStringToFilename)(const URI_CHAR * uriString,
		URI_CHAR * filename, UriBool toUnix) {
	const URI_CHAR * const prefix = toUnix ? _UT("file://") : _UT("file:///");
	const int prefixLen = toUnix ? 7 : 8;
	URI_CHAR * walker = filename;
	size_t charsToCopy;

	if (URI_STRNCMP(uriString, prefix, prefixLen)) {
		return URI_ERROR_SYNTAX;
	}
	charsToCopy = URI_STRLEN(uriString + prefixLen) + 1;
	memcpy(filename, uriString + prefixLen, charsToCopy * sizeof(URI_CHAR));
	URI_FUNC(UnescapeInPlaceEx)(filename, URI_FALSE, URI_BR_DONT_TOUCH);

	/* Convert forward slashes to backslashes */
	if (!toUnix) {
		while (walker[0] != _UT('\0')) {
			if (walker[0] == _UT('/')) {
				walker[0] = _UT('\\');
			}
			walker++;
		}
	}

	return URI_SUCCESS;
}



int URI_FUNC(UnixFilenameToUriString)(const URI_CHAR * filename, URI_CHAR * uriString) {
	return URI_FUNC(FilenameToUriString)(filename, uriString, URI_TRUE);
}



int URI_FUNC(WindowsFilenameToUriString)(const URI_CHAR * filename, URI_CHAR * uriString) {
	return URI_FUNC(FilenameToUriString)(filename, uriString, URI_FALSE);
}



int URI_FUNC(UriStringToUnixFilename)(const URI_CHAR * uriString, URI_CHAR * filename) {
	return URI_FUNC(UriStringToFilename)(uriString, filename, URI_TRUE);
}



int URI_FUNC(UriStringToWindowsFilename)(const URI_CHAR * uriString, URI_CHAR * filename) {
	return URI_FUNC(UriStringToFilename)(uriString, filename, URI_FALSE);
}



#endif