452 lines
10 KiB
C
452 lines
10 KiB
C
/*
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* $Id$
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*
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Copyright (c) 2016-2020 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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str_t* FN(open) (mio_t* mio, mio_oow_t xtnsize, mio_oow_t capa)
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{
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str_t* str;
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str = (str_t*)mio_allocmem(mio, MIO_SIZEOF(str_t) + xtnsize);
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if (str)
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{
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if (FN(init)(str, mio, capa) <= -1)
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{
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mio_freemem (mio, str);
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str = MIO_NULL;
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}
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else
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{
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MIO_MEMSET (str + 1, 0, xtnsize);
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}
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}
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return str;
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}
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void FN(close) (str_t* str)
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{
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FN(fini) (str);
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mio_freemem (str->mio, str);
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}
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int FN(init) (str_t* str, mio_t* mio, mio_oow_t capa)
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{
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MIO_MEMSET (str, 0, MIO_SIZEOF(str_t));
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str->mio = mio;
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str->sizer = MIO_NULL;
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if (capa == 0) str->val.ptr = MIO_NULL;
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else
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{
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str->val.ptr = (char_t*)mio_allocmem(mio, MIO_SIZEOF(char_t) * (capa + 1));
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if (!str->val.ptr) return -1;
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str->val.ptr[0] = '\0';
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}
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str->val.len = 0;
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str->capa = capa;
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return 0;
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}
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void FN(fini) (str_t* str)
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{
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if (str->val.ptr) mio_freemem (str->mio, str->val.ptr);
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}
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int FN(yield) (str_t* str, cstr_t* buf, mio_oow_t newcapa)
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{
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char_t* tmp;
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if (newcapa == 0) tmp = MIO_NULL;
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else
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{
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tmp = (char_t*)mio_allocmem(str->mio, MIO_SIZEOF(char_t) * (newcapa + 1));
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if (!tmp) return -1;
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tmp[0] = '\0';
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}
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if (buf) *buf = str->val;
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str->val.ptr = tmp;
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str->val.len = 0;
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str->capa = newcapa;
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return 0;
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}
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char_t* FN(yieldptr) (str_t* str, mio_oow_t newcapa)
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{
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cstr_t mx;
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if (FN(yield)(str, &mx, newcapa) <= -1) return MIO_NULL;
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return mx.ptr;
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}
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mio_oow_t FN(setcapa) (str_t* str, mio_oow_t capa)
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{
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char_t* tmp;
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if (capa == str->capa) return capa;
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tmp = (char_t*)mio_reallocmem(str->mio, str->val.ptr, MIO_SIZEOF(char_t) * (capa+1));
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if (!tmp) return (mio_oow_t)-1;
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if (capa < str->val.len)
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{
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str->val.len = capa;
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tmp[capa] = '\0';
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}
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str->capa = capa;
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str->val.ptr = tmp;
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return str->capa;
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}
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mio_oow_t FN(setlen) (str_t* str, mio_oow_t len)
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{
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if (len == str->val.len) return len;
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if (len < str->val.len)
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{
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str->val.len = len;
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str->val.ptr[len] = '\0';
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return len;
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}
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if (len > str->capa)
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{
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if (FN(setcapa)(str, len) == (mio_oow_t)-1) return (mio_oow_t)-1;
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}
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while (str->val.len < len) str->val.ptr[str->val.len++] = ' ';
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str->val.ptr[str->val.len] = '\0';
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return str->val.len;
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}
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void FN(clear) (str_t* str)
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{
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str->val.len = 0;
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if (str->val.ptr)
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{
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MIO_ASSERT (str->mio, str->capa >= 1);
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str->val.ptr[0] = '\0';
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}
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}
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void FN(swap) (str_t* str, str_t* str1)
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{
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str_t tmp;
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tmp.val.ptr = str->val.ptr;
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tmp.val.len = str->val.len;
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tmp.capa = str->capa;
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tmp.mio = str->mio;
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str->val.ptr = str1->val.ptr;
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str->val.len = str1->val.len;
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str->capa = str1->capa;
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str->mio = str1->mio;
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str1->val.ptr = tmp.val.ptr;
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str1->val.len = tmp.val.len;
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str1->capa = tmp.capa;
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str1->mio = tmp.mio;
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}
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mio_oow_t FN(cpy) (str_t* str, const char_t* s)
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{
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/* TODO: improve it */
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return FN(ncpy)(str, s, count_chars(s));
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}
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mio_oow_t FN(ncpy) (str_t* str, const char_t* s, mio_oow_t len)
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{
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if (len > str->capa || str->capa <= 0)
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{
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mio_oow_t tmp;
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/* if the current capacity is 0 and the string len to copy is 0
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* we can't simply pass 'len' as the new capapcity.
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* ecs_setcapa() won't do anything the current capacity of 0
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* is the same as new capacity required. note that when str->capa
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* is 0, str->val.ptr is MIO_NULL. However, this is copying operation.
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* Copying a zero-length string may indicate that str->val.ptr must
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* not be MIO_NULL. so I simply pass 1 as the new capacity */
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tmp = FN(setcapa)(str, ((str->capa <= 0 && len <= 0)? 1: len));
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if (tmp == (mio_oow_t)-1) return (mio_oow_t)-1;
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}
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MIO_MEMCPY (&str->val.ptr[0], s, len * MIO_SIZEOF(*s));
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str->val.ptr[len] = '\0';
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str->val.len = len;
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return len;
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}
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mio_oow_t FN(cat) (str_t* str, const char_t* s)
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{
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/* TODO: improve it. no counting */
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return FN(ncat)(str, s, count_chars(s));
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}
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static int FN(resize_for_ncat) (str_t* str, mio_oow_t len)
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{
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if (len > str->capa - str->val.len)
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{
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mio_oow_t ncapa, mincapa;
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/* let the minimum capacity be as large as
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* to fit in the new substring */
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mincapa = str->val.len + len;
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if (!str->sizer)
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{
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/* increase the capacity by the length to add */
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ncapa = mincapa;
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/* if the new capacity is less than the double,
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* just double it */
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if (ncapa < str->capa * 2) ncapa = str->capa * 2;
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}
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else
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{
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/* let the user determine the new capacity.
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* pass the minimum capacity required as a hint */
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ncapa = str->sizer(str, mincapa);
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/* if no change in capacity, return current length */
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if (ncapa == str->capa) return 0;
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}
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/* change the capacity */
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do
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{
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if (FN(setcapa)(str, ncapa) != (mio_oow_t)-1) break;
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if (ncapa <= mincapa) return -1;
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ncapa--;
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}
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while (1);
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}
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else if (str->capa <= 0 && len <= 0)
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{
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MIO_ASSERT (str->mio, str->val.ptr == MIO_NULL);
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MIO_ASSERT (str->mio, str->val.len <= 0);
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if (FN(setcapa)(str, 1) == (mio_oow_t)-1) return -1;
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}
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return 1;
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}
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mio_oow_t FN(ncat) (str_t* str, const char_t* s, mio_oow_t len)
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{
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int n;
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mio_oow_t i, j;
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n = FN(resize_for_ncat)(str, len);
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if (n <= -1) return (mio_oow_t)-1;
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if (n == 0) return str->val.len;
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if (len > str->capa - str->val.len)
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{
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/* copy as many characters as the number of cells available.
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* if the capacity has been decreased, len is adjusted here */
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len = str->capa - str->val.len;
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}
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/*
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MIO_MEMCPY (&str->val.ptr[str->val.len], s, len*MIO_SIZEOF(*s));
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str->val.len += len;
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str->val.ptr[str->val.len] = T('\0');
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*/
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for (i = 0, j = str->val.len ; i < len; j++, i++) str->val.ptr[j] = s[i];
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str->val.ptr[j] = '\0';
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str->val.len = j;
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return str->val.len;
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}
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mio_oow_t FN(nrcat) (str_t* str, const char_t* s, mio_oow_t len)
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{
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int n;
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mio_oow_t i, j;
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n = FN(resize_for_ncat)(str, len);
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if (n <= -1) return (mio_oow_t)-1;
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if (n == 0) return str->val.len;
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if (len > str->capa - str->val.len) len = str->capa - str->val.len;
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for (i = len, j = str->val.len ; i > 0; j++) str->val.ptr[j] = s[--i];
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str->val.ptr[j] = '\0';
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str->val.len = j;
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return str->val.len;
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}
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mio_oow_t FN(ccat) (str_t* str, char_t c)
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{
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return FN(ncat)(str, &c, 1);
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}
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mio_oow_t FN(nccat) (str_t* str, char_t c, mio_oow_t len)
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{
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while (len > 0)
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{
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if (FN(ncat)(str, &c, 1) == (mio_oow_t)-1) return (mio_oow_t)-1;
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len--;
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}
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return str->val.len;
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}
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mio_oow_t FN(del) (str_t* str, mio_oow_t index, mio_oow_t size)
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{
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if (str->val.ptr && index < str->val.len && size > 0)
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{
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mio_oow_t nidx = index + size;
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if (nidx >= str->val.len)
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{
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str->val.ptr[index] = '\0';
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str->val.len = index;
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}
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else
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{
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MIO_MEMMOVE (&str->val.ptr[index], &str->val.ptr[nidx], MIO_SIZEOF(*str->val.ptr) * (str->val.len - nidx + 1));
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str->val.len -= size;
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}
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}
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return str->val.len;
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}
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mio_oow_t FN(amend) (str_t* str, mio_oow_t pos, mio_oow_t len, const char_t* repl)
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{
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mio_oow_t max_len;
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mio_oow_t repl_len = count_chars(repl);
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if (pos >= str->val.len) pos = str->val.len;
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max_len = str->val.len - pos;
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if (len > max_len) len = max_len;
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if (len > repl_len)
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{
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FN(del) (str, pos, len - repl_len);
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}
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else if (len < repl_len)
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{
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mio_oow_t old_ecs_len = str->val.len;
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if (FN(setlen)(str, str->val.len + repl_len - len) == (mio_oow_t)-1) return (mio_oow_t)-1;
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MIO_MEMMOVE (&str->val.ptr[pos + repl_len], &str->val.ptr[pos + len], MIO_SIZEOF(*repl) * (old_ecs_len - (pos + len)));
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}
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if (repl_len > 0) MIO_MEMMOVE (&str->val.ptr[pos], repl, MIO_SIZEOF(*repl) * repl_len);
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return str->val.len;
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}
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static int FN(put_bchars) (mio_fmtout_t* fmtout, const mio_bch_t* ptr, mio_oow_t len)
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{
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#if defined(BUILD_UECS)
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mio_uecs_t* uecs = (mio_uecs_t*)fmtout->ctx;
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if (mio_uecs_ncatbchars(uecs, ptr, len, uecs->mio->_cmgr, 1) == (mio_oow_t)-1) return -1;
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#else
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mio_becs_t* becs = (mio_becs_t*)fmtout->ctx;
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if (mio_becs_ncat(becs, ptr, len) == (mio_oow_t)-1) return -1;
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#endif
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return 1; /* success. carry on */
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}
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static int FN(put_uchars) (mio_fmtout_t* fmtout, const mio_uch_t* ptr, mio_oow_t len)
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{
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#if defined(BUILD_UECS)
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mio_uecs_t* uecs = (mio_uecs_t*)fmtout->ctx;
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if (mio_uecs_ncat(uecs, ptr, len) == (mio_oow_t)-1) return -1;
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#else
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mio_becs_t* becs = (mio_becs_t*)fmtout->ctx;
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if (mio_becs_ncatuchars(becs, ptr, len, becs->mio->_cmgr) == (mio_oow_t)-1) return -1;
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#endif
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return 1; /* success. carry on */
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}
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mio_oow_t FN(vfcat) (str_t* str, const char_t* fmt, va_list ap)
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{
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mio_fmtout_t fo;
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MIO_MEMSET (&fo, 0, MIO_SIZEOF(fo));
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//fo.mmgr = str->mio->_mmgr;
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fo.putbchars = FN(put_bchars);
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fo.putuchars = FN(put_uchars);
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fo.ctx = str;
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#if defined(BUILD_UECS)
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if (mio_ufmt_outv(&fo, fmt, ap) <= -1) return -1;
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#else
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if (mio_bfmt_outv(&fo, fmt, ap) <= -1) return -1;
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#endif
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return str->val.len;
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}
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mio_oow_t FN(fcat) (str_t* str, const char_t* fmt, ...)
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{
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mio_oow_t x;
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va_list ap;
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va_start (ap, fmt);
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x = FN(vfcat)(str, fmt, ap);
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va_end (ap);
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return x;
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}
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mio_oow_t FN(vfmt) (str_t* str, const char_t* fmt, va_list ap)
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{
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mio_fmtout_t fo;
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MIO_MEMSET (&fo, 0, MIO_SIZEOF(fo));
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//fo.mmgr = str->mio->_mmgr;
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fo.putbchars = FN(put_bchars);
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fo.putuchars = FN(put_uchars);
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fo.ctx = str;
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FN(clear) (str);
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#if defined(BUILD_UECS)
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if (mio_ufmt_outv(&fo, fmt, ap) <= -1) return -1;
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#else
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if (mio_bfmt_outv(&fo, fmt, ap) <= -1) return -1;
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#endif
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return str->val.len;
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}
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mio_oow_t FN(fmt) (str_t* str, const char_t* fmt, ...)
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{
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mio_oow_t x;
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va_list ap;
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va_start (ap, fmt);
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x = FN(vfmt)(str, fmt, ap);
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va_end (ap);
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return x;
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}
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