97 lines
2.1 KiB
C
97 lines
2.1 KiB
C
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/*
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* Copyright 2012 Jacek Caban for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "jscript.h"
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#include "wine/debug.h"
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const char *debugstr_jsstr(jsstr_t *str)
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{
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return debugstr_wn(str->str, jsstr_length(str));
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}
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jsstr_t *jsstr_alloc_buf(unsigned len)
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{
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jsstr_t *ret;
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if(len > JSSTR_MAX_LENGTH)
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return NULL;
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ret = heap_alloc(FIELD_OFFSET(jsstr_t, str[len+1]));
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if(!ret)
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return NULL;
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ret->length_flags = len << JSSTR_LENGTH_SHIFT;
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ret->ref = 1;
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ret->str[len] = 0;
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return ret;
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}
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jsstr_t *jsstr_alloc_len(const WCHAR *buf, unsigned len)
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{
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jsstr_t *ret;
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ret = jsstr_alloc_buf(len);
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if(ret)
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memcpy(ret->str, buf, len*sizeof(WCHAR));
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return ret;
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}
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int jsstr_cmp(jsstr_t *str1, jsstr_t *str2)
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{
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int len1 = jsstr_length(str1);
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int len2 = jsstr_length(str2);
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int ret;
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ret = memcmp(str1->str, str2->str, min(len1, len2)*sizeof(WCHAR));
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if(!ret)
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ret = len1 - len2;
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return ret;
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}
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static jsstr_t *empty_str, *nan_str;
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jsstr_t *jsstr_nan(void)
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{
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return jsstr_addref(nan_str);
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}
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jsstr_t *jsstr_empty(void)
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{
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return jsstr_addref(empty_str);
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}
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BOOL init_strings(void)
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{
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static const WCHAR NaNW[] = { 'N','a','N',0 };
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if(!(empty_str = jsstr_alloc_buf(0)))
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return FALSE;
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if(!(nan_str = jsstr_alloc(NaNW)))
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return FALSE;
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return TRUE;
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}
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void free_strings(void)
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{
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jsstr_release(empty_str);
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jsstr_release(nan_str);
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}
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