<commit_before>/*-
 * Copyright (c) 2002, 2003 <NAME>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

#include <errno.h>
#include <runetype.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <wchar.h>

extern size_t (*__mbrtowc)(wchar_t * __restrict, const char * __restrict,
    size_t, mbstate_t * __restrict);
extern size_t (*__wcrtomb)(char * __restrict, wchar_t, mbstate_t * __restrict);

size_t  _UTF8_mbrtowc(wchar_t * __restrict, const char * __restrict, size_t,
	    mbstate_t * __restrict);
size_t  _UTF8_wcrtomb(char * __restrict, wchar_t, mbstate_t * __restrict);

int
_UTF8_init(_RuneLocale *rl)
{

	__mbrtowc = _UTF8_mbrtowc;
	__wcrtomb = _UTF8_wcrtomb;
	_CurrentRuneLocale = rl;
	__mb_cur_max = 6;

	return (0);
}

size_t
_UTF8_mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n,
    mbstate_t * __restrict ps __unused)
{
	int ch, i, len, mask;
	wchar_t lbound, wch;

	if (s == NULL)
		/* Reset to initial shift state (no-op) */
		return (0);
	if (n == 0)
		/* Incomplete multibyte sequence */
		return ((size_t)-2);

	/*
	 * Determine the number of octets that make up this character from
	 * the first octet, and a mask that extracts the interesting bits of
	 * the first octet.
	 *
	 * We also specify a lower bound for the character code to detect
	 * redundant, non-"shortest form" encodings. For example, the
	 * sequence C0 80 is _not_ a legal representation of the null
	 * character. This enforces a 1-to-1 mapping between character
	 * codes and their multibyte representations.
	 */
	ch = (unsigned char)*s;
	if ((ch & 0x80) == 0) {
		mask = 0x7f;
		len = 1;
		lbound = 0;
	} else if ((ch & 0xe0) == 0xc0) {
		mask = 0x1f;
		len = 2;
		lbound = 0x80;
	} else if ((ch & 0xf0) == 0xe0) {
		mask = 0x0f;
		len = 3;
		lbound = 0x800;
	} else if ((ch & 0xf8) == 0xf0) {
		mask = 0x07;
		len = 4;
		lbound = 0x10000;
	} else if ((ch & 0xfc) == 0xf8) {
		mask = 0x03;
		len = 5;
		lbound = 0x200000;
	} else if ((ch & 0xfc) == 0xfc) {
		mask = 0x01;
		len = 6;
		lbound = 0x4000000;
	} else {
		/*
		 * Malformed input; input is not UTF-8.
		 */
		errno = EILSEQ;
		return ((size_t)-1);
	}

	if (n < (size_t)len)
		/* Incomplete multibyte sequence */
		return ((size_t)-2);

	/*
	 * Decode the octet sequence representing the character in chunks
	 * of 6 bits, most significant first.
	 */
	wch = (unsigned char)*s++ & mask;
	i = len;
	while (--i != 0) {
		if ((*s & 0xc0) != 0x80) {
			/*
			 * Malformed input; bad characters in the middle
			 * of a character.
			 */
			errno = EILSEQ;
			return ((size_t)-1);
		}
		wch <<= 6;
		wch |= *s++ & 0x3f;
	}
	if (wch < lbound) {
		/*
		 * Malformed input; redundant encoding.
		 */
		errno = EILSEQ;
		return ((size_t)-1);
	}
	if (pwc != NULL)
		*pwc = wch;
	return (wch == L'\0' ? 0 : i);
}

size_t
_UTF8_wcrtomb(char * __restrict s, wchar_t wc,
    mbstate_t * __restrict ps __unused)
{
	unsigned char lead;
	int i, len;

	if (s == NULL)
		/* Reset to initial shift state (no-op) */
		return (1);
<commit_msg>Fix a typo that caused mbrtowc() to always return 0.<commit_after>/*-
 * Copyright (c) 2002, 2003 <NAME>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

#include <errno.h>
#include <runetype.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <wchar.h>

extern size_t (*__mbrtowc)(wchar_t * __restrict, const char * __restrict,
    size_t, mbstate_t * __restrict);
extern size_t (*__wcrtomb)(char * __restrict, wchar_t, mbstate_t * __restrict);

size_t  _UTF8_mbrtowc(wchar_t * __restrict, const char * __restrict, size_t,
	    mbstate_t * __restrict);
size_t  _UTF8_wcrtomb(char * __restrict, wchar_t, mbstate_t * __restrict);

int
_UTF8_init(_RuneLocale *rl)
{

	__mbrtowc = _UTF8_mbrtowc;
	__wcrtomb = _UTF8_wcrtomb;
	_CurrentRuneLocale = rl;
	__mb_cur_max = 6;

	return (0);
}

size_t
_UTF8_mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n,
    mbstate_t * __restrict ps __unused)
{
	int ch, i, len, mask;
	wchar_t lbound, wch;

	if (s == NULL)
		/* Reset to initial shift state (no-op) */
		return (0);
	if (n == 0)
		/* Incomplete multibyte sequence */
		return ((size_t)-2);

	/*
	 * Determine the number of octets that make up this character from
	 * the first octet, and a mask that extracts the interesting bits of
	 * the first octet.
	 *
	 * We also specify a lower bound for the character code to detect
	 * redundant, non-"shortest form" encodings. For example, the
	 * sequence C0 80 is _not_ a legal representation of the null
	 * character. This enforces a 1-to-1 mapping between character
	 * codes and their multibyte representations.
	 */
	ch = (unsigned char)*s;
	if ((ch & 0x80) == 0) {
		mask = 0x7f;
		len = 1;
		lbound = 0;
	} else if ((ch & 0xe0) == 0xc0) {
		mask = 0x1f;
		len = 2;
		lbound = 0x80;
	} else if ((ch & 0xf0) == 0xe0) {
		mask = 0x0f;
		len = 3;
		lbound = 0x800;
	} else if ((ch & 0xf8) == 0xf0) {
		mask = 0x07;
		len = 4;
		lbound = 0x10000;
	} else if ((ch & 0xfc) == 0xf8) {
		mask = 0x03;
		len = 5;
		lbound = 0x200000;
	} else if ((ch & 0xfc) == 0xfc) {
		mask = 0x01;
		len = 6;
		lbound = 0x4000000;
	} else {
		/*
		 * Malformed input; input is not UTF-8.
		 */
		errno = EILSEQ;
		return ((size_t)-1);
	}

	if (n < (size_t)len)
		/* Incomplete multibyte sequence */
		return ((size_t)-2);

	/*
	 * Decode the octet sequence representing the character in chunks
	 * of 6 bits, most significant first.
	 */
	wch = (unsigned char)*s++ & mask;
	i = len;
	while (--i != 0) {
		if ((*s & 0xc0) != 0x80) {
			/*
			 * Malformed input; bad characters in the middle
			 * of a character.
			 */
			errno = EILSEQ;
			return ((size_t)-1);
		}
		wch <<= 6;
		wch |= *s++ & 0x3f;
	}
	if (wch < lbound) {
		/*
		 * Malformed input; redundant encoding.
		 */
		errno = EILSEQ;
		return ((size_t)-1);
	}
	if (pwc != NULL)
		*pwc = wch;
	return (wch == L'\0' ? 0 : len);
}

size_t
_UTF8_wcrtomb(char * __restrict s, wchar_t wc,
    mbstate_t * __restrict ps __unused)
{
	unsigned char lead;
	int i, len;

	if (s == NULL)
		/* Reset to initial shift state (no-op) */
		return (1);

{'fraction_non_alphanumeric': 0.11200459506031017, 'fraction_numerical': 0.026766226306720275, 'mean_word_length': 3.377073906485671, 'pattern_counts': {'":': 0, '<': 27, '<?xml version=': 0, '>': 19, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '2094032', 'n_tokens_mistral': 3501, 'n_tokens_neox': 3052, 'n_words': 1097}