542 lines
11 KiB
C
542 lines
11 KiB
C
/*
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Copyright (c) 2006-2020 Chung, Hyung-Hwan. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "hawk-prv.h"
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/* ----------------------------------------------------------------------- */
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int hawk_comp_ucstr_bcstr (const hawk_uch_t* str1, const hawk_bch_t* str2, int ignorecase)
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{
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if (ignorecase)
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{
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while (hawk_to_uch_lower(*str1) == hawk_to_bch_lower(*str2))
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{
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if (*str1 == '\0') return 0;
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str1++; str2++;
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}
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return ((hawk_uchu_t)hawk_to_uch_lower(*str1) > (hawk_bchu_t)hawk_to_bch_lower(*str2))? 1: -1;
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}
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else
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{
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while (*str1 == *str2)
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{
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if (*str1 == '\0') return 0;
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str1++; str2++;
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}
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return ((hawk_uchu_t)*str1 > (hawk_bchu_t)*str2)? 1: -1;
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}
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}
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int hawk_comp_ucstr_bcstr_limited (const hawk_uch_t* str1, const hawk_bch_t* str2, hawk_oow_t maxlen, int ignorecase)
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{
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if (maxlen == 0) return 0;
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if (ignorecase)
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{
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while (hawk_to_uch_lower(*str1) == hawk_to_bch_lower(*str2))
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{
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if (*str1 == '\0' || maxlen == 1) return 0;
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str1++; str2++; maxlen--;
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}
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return ((hawk_uchu_t)hawk_to_uch_lower(*str1) > (hawk_bchu_t)hawk_to_bch_lower(*str2))? 1: -1;
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}
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else
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{
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while (*str1 == *str2)
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{
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if (*str1 == '\0' || maxlen == 1) return 0;
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str1++; str2++; maxlen--;
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}
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return ((hawk_uchu_t)*str1 > (hawk_bchu_t)*str2)? 1: -1;
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}
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}
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int hawk_comp_uchars_bcstr (const hawk_uch_t* str1, hawk_oow_t len, const hawk_bch_t* str2, int ignorecase)
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{
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/* for "abc\0" of length 4 vs "abc", the fourth character
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* of the first string is equal to the terminating null of
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* the second string. the first string is still considered
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* bigger */
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if (ignorecase)
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{
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const hawk_uch_t* end = str1 + len;
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hawk_uch_t c1;
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hawk_bch_t c2;
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while (str1 < end && *str2 != '\0')
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{
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c1 = hawk_to_uch_lower(*str1);
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c2 = hawk_to_bch_lower(*str2);
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if (c1 != c2) return ((hawk_uchu_t)c1 > (hawk_bchu_t)c2)? 1: -1;
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str1++; str2++;
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}
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return (str1 < end)? 1: (*str2 == '\0'? 0: -1);
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}
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else
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{
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const hawk_uch_t* end = str1 + len;
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while (str1 < end && *str2 != '\0')
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{
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if (*str1 != *str2) return ((hawk_uchu_t)*str1 > (hawk_bchu_t)*str2)? 1: -1;
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str1++; str2++;
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}
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return (str1 < end)? 1: (*str2 == '\0'? 0: -1);
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}
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}
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int hawk_comp_bchars_ucstr (const hawk_bch_t* str1, hawk_oow_t len, const hawk_uch_t* str2, int ignorecase)
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{
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if (ignorecase)
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{
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const hawk_bch_t* end = str1 + len;
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hawk_bch_t c1;
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hawk_uch_t c2;
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while (str1 < end && *str2 != '\0')
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{
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c1 = hawk_to_bch_lower(*str1);
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c2 = hawk_to_uch_lower(*str2);
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if (c1 != c2) return ((hawk_bchu_t)c1 > (hawk_uchu_t)c2)? 1: -1;
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str1++; str2++;
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}
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return (str1 < end)? 1: (*str2 == '\0'? 0: -1);
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}
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else
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{
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const hawk_bch_t* end = str1 + len;
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while (str1 < end && *str2 != '\0')
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{
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if (*str1 != *str2) return ((hawk_bchu_t)*str1 > (hawk_uchu_t)*str2)? 1: -1;
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str1++; str2++;
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}
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return (str1 < end)? 1: (*str2 == '\0'? 0: -1);
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}
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}
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/* ----------------------------------------------------------------------- */
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void hawk_copy_bchars_to_uchars (hawk_uch_t* dst, const hawk_bch_t* src, hawk_oow_t len)
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{
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/* copy without conversions.
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* use hawk_convbtouchars() for conversion encoding */
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hawk_oow_t i;
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for (i = 0; i < len; i++) dst[i] = src[i];
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}
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void hawk_copy_uchars_to_bchars (hawk_bch_t* dst, const hawk_uch_t* src, hawk_oow_t len)
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{
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/* copy without conversions.
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* use hawk_convutobchars() for conversion encoding */
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hawk_oow_t i;
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for (i = 0; i < len; i++) dst[i] = src[i];
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}
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/* ----------------------------------------------------------------------- */
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int hawk_conv_bchars_to_uchars_with_cmgr (
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const hawk_bch_t* bcs, hawk_oow_t* bcslen,
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hawk_uch_t* ucs, hawk_oow_t* ucslen, hawk_cmgr_t* cmgr, int all)
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{
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const hawk_bch_t* p;
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int ret = 0;
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hawk_oow_t mlen;
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if (ucs)
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{
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/* destination buffer is specified.
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* copy the conversion result to the buffer */
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hawk_uch_t* q, * qend;
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p = bcs;
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q = ucs;
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qend = ucs + *ucslen;
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mlen = *bcslen;
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while (mlen > 0)
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{
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hawk_oow_t n;
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if (q >= qend)
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{
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/* buffer too small */
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ret = -2;
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break;
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}
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n = cmgr->bctouc(p, mlen, q);
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if (n == 0)
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{
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/* invalid sequence */
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if (all)
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{
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n = 1;
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*q = '?';
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}
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else
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{
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ret = -1;
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break;
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}
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}
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if (n > mlen)
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{
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/* incomplete sequence */
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if (all)
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{
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n = 1;
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*q = '?';
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}
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else
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{
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ret = -3;
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break;
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}
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}
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q++;
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p += n;
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mlen -= n;
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}
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*ucslen = q - ucs;
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*bcslen = p - bcs;
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}
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else
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{
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/* no destination buffer is specified. perform conversion
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* but don't copy the result. the caller can call this function
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* without a buffer to find the required buffer size, allocate
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* a buffer with the size and call this function again with
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* the buffer. */
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hawk_uch_t w;
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hawk_oow_t wlen = 0;
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p = bcs;
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mlen = *bcslen;
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while (mlen > 0)
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{
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hawk_oow_t n;
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n = cmgr->bctouc(p, mlen, &w);
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if (n == 0)
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{
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/* invalid sequence */
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if (all) n = 1;
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else
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{
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ret = -1;
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break;
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}
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}
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if (n > mlen)
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{
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/* incomplete sequence */
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if (all) n = 1;
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else
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{
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ret = -3;
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break;
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}
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}
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p += n;
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mlen -= n;
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wlen += 1;
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}
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*ucslen = wlen;
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*bcslen = p - bcs;
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}
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return ret;
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}
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int hawk_conv_bcstr_to_ucstr_with_cmgr (
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const hawk_bch_t* bcs, hawk_oow_t* bcslen,
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hawk_uch_t* ucs, hawk_oow_t* ucslen, hawk_cmgr_t* cmgr, int all)
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{
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const hawk_bch_t* bp;
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hawk_oow_t mlen, wlen;
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int n;
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for (bp = bcs; *bp != '\0'; bp++) /* nothing */ ;
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mlen = bp - bcs; wlen = *ucslen;
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n = hawk_conv_bchars_to_uchars_with_cmgr(bcs, &mlen, ucs, &wlen, cmgr, all);
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if (ucs)
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{
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/* null-terminate the target buffer if it has room for it. */
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if (wlen < *ucslen) ucs[wlen] = '\0';
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else n = -2; /* buffer too small */
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}
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*bcslen = mlen; *ucslen = wlen;
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return n;
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}
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int hawk_conv_uchars_to_bchars_with_cmgr (const hawk_uch_t* ucs, hawk_oow_t* ucslen, hawk_bch_t* bcs, hawk_oow_t* bcslen, hawk_cmgr_t* cmgr)
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{
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const hawk_uch_t* p = ucs;
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const hawk_uch_t* end = ucs + *ucslen;
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int ret = 0;
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if (bcs)
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{
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hawk_oow_t rem = *bcslen;
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while (p < end)
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{
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hawk_oow_t n;
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if (rem <= 0)
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{
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ret = -2; /* buffer too small */
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break;
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}
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n = cmgr->uctobc(*p, bcs, rem);
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if (n == 0)
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{
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ret = -1;
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break; /* illegal character */
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}
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if (n > rem)
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{
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ret = -2; /* buffer too small */
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break;
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}
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bcs += n; rem -= n; p++;
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}
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*bcslen -= rem;
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}
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else
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{
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hawk_bch_t bcsbuf[HAWK_BCSIZE_MAX];
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hawk_oow_t mlen = 0;
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while (p < end)
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{
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hawk_oow_t n;
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n = cmgr->uctobc(*p, bcsbuf, HAWK_COUNTOF(bcsbuf));
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if (n == 0)
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{
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ret = -1;
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break; /* illegal character */
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}
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/* it assumes that bcsbuf is large enough to hold a character */
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/*HAWK_ASSERT (hawk, n <= HAWK_COUNTOF(bcsbuf));*/
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p++; mlen += n;
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}
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/* this length excludes the terminating null character.
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* this function doesn't even null-terminate the result. */
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*bcslen = mlen;
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}
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*ucslen = p - ucs;
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return ret;
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}
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int hawk_conv_ucstr_to_bcstr_with_cmgr (
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const hawk_uch_t* ucs, hawk_oow_t* ucslen,
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hawk_bch_t* bcs, hawk_oow_t* bcslen, hawk_cmgr_t* cmgr)
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{
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const hawk_uch_t* p = ucs;
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int ret = 0;
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if (bcs)
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{
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hawk_oow_t rem = *bcslen;
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while (*p != '\0')
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{
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hawk_oow_t n;
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if (rem <= 0)
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{
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ret = -2;
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break;
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}
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n = cmgr->uctobc(*p, bcs, rem);
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if (n == 0)
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{
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ret = -1;
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break; /* illegal character */
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}
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if (n > rem)
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{
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ret = -2;
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break; /* buffer too small */
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}
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bcs += n; rem -= n; p++;
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}
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/* update bcslen to the length of the bcs string converted excluding
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* terminating null */
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*bcslen -= rem;
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/* null-terminate the multibyte sequence if it has sufficient space */
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if (rem > 0) *bcs = '\0';
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else
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{
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/* if ret is -2 and cs[cslen] == '\0',
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* this means that the bcs buffer was lacking one
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* slot for the terminating null */
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ret = -2; /* buffer too small */
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}
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}
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else
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{
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hawk_bch_t bcsbuf[HAWK_BCSIZE_MAX];
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hawk_oow_t mlen = 0;
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while (*p != '\0')
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{
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hawk_oow_t n;
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n = cmgr->uctobc(*p, bcsbuf, HAWK_COUNTOF(bcsbuf));
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if (n == 0)
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{
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ret = -1;
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break; /* illegal character */
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}
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/* it assumes that bcs is large enough to hold a character */
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/*HAWK_ASSERT (hawk, n <= HAWK_COUNTOF(bcs));*/
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p++; mlen += n;
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}
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/* this length holds the number of resulting multi-byte characters
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* excluding the terminating null character */
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*bcslen = mlen;
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}
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*ucslen = p - ucs; /* the number of wide characters handled. */
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return ret;
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}
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int hawk_conv_bchars_to_uchars_upto_stopper_with_cmgr (
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const hawk_bch_t* bcs, hawk_oow_t* bcslen,
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hawk_uch_t* ucs, hawk_oow_t* ucslen, hawk_uch_t stopper, hawk_cmgr_t* cmgr)
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{
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const hawk_bch_t* p;
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int ret = 0;
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hawk_oow_t blen;
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hawk_uch_t w;
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hawk_oow_t ulen = 0;
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hawk_uch_t* wend;
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p = bcs;
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blen = *bcslen;
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if (ucs) wend = ucs + *ucslen;
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/* since it needs to break when a stopper is met,
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* i can't perform bulky conversion using the buffer
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* provided. so conversion is conducted character by
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* character */
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while (blen > 0)
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{
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hawk_oow_t n;
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n = cmgr->bctouc(p, blen, &w);
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if (n == 0)
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{
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/* invalid sequence */
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ret = -1;
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break;
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}
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if (n > blen)
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{
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/* incomplete sequence */
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ret = -3;
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break;
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}
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if (ucs)
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{
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if (ucs >= wend) break;
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*ucs++ = w;
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}
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p += n;
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blen -= n;
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ulen += 1;
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if (w == stopper) break;
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}
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*ucslen = ulen;
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*bcslen = p - bcs;
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return ret;
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}
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/* ------------------------------------------------------------------------ */
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#if defined(_WIN32) || defined(__OS2__) || defined(__DOS__)
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# define IS_PATH_SEP(c) ((c) == '/' || (c) == '\\')
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#else
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# define IS_PATH_SEP(c) ((c) == '/')
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#endif
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const hawk_uch_t* hawk_get_base_name_ucstr (const hawk_uch_t* path)
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{
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const hawk_uch_t* p, * last = HAWK_NULL;
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for (p = path; *p != '\0'; p++)
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{
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if (IS_PATH_SEP(*p)) last = p;
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}
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return last? (last +1): path;
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}
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const hawk_bch_t* hawk_get_base_name_bcstr (const hawk_bch_t* path)
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{
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const hawk_bch_t* p, * last = HAWK_NULL;
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for (p = path; *p != '\0'; p++)
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{
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if (IS_PATH_SEP(*p)) last = p;
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}
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return last? (last +1): path;
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}
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