2 * Copyright 2012 Jacek Caban for CodeWeavers
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 #include "wine/debug.h"
23 const char *debugstr_jsstr(jsstr_t *str)
25 return debugstr_wn(jsstr_as_inline(str)->buf, jsstr_length(str));
28 WCHAR *jsstr_alloc_buf(unsigned len, jsstr_t **r)
32 if(len > JSSTR_MAX_LENGTH)
35 ret = heap_alloc(FIELD_OFFSET(jsstr_inline_t, buf[len+1]));
39 ret->str.length_flags = len << JSSTR_LENGTH_SHIFT;
46 jsstr_t *jsstr_alloc_len(const WCHAR *buf, unsigned len)
51 ptr = jsstr_alloc_buf(len, &ret);
53 memcpy(ptr, buf, len*sizeof(WCHAR));
58 int jsstr_cmp(jsstr_t *str1, jsstr_t *str2)
60 int len1 = jsstr_length(str1);
61 int len2 = jsstr_length(str2);
64 ret = memcmp(jsstr_as_inline(str1)->buf, jsstr_as_inline(str2)->buf, min(len1, len2)*sizeof(WCHAR));
71 jsstr_t *jsstr_concat(jsstr_t *str1, jsstr_t *str2)
77 len1 = jsstr_length(str1);
79 return jsstr_addref(str2);
81 len2 = jsstr_length(str2);
83 return jsstr_addref(str1);
85 ptr = jsstr_alloc_buf(len1+len2, &ret);
89 jsstr_flush(str1, ptr);
90 jsstr_flush(str2, ptr+len1);
94 static jsstr_t *empty_str, *nan_str, *undefined_str;
96 jsstr_t *jsstr_nan(void)
98 return jsstr_addref(nan_str);
101 jsstr_t *jsstr_empty(void)
103 return jsstr_addref(empty_str);
106 jsstr_t *jsstr_undefined(void)
108 return jsstr_addref(undefined_str);
111 BOOL init_strings(void)
113 static const WCHAR NaNW[] = { 'N','a','N',0 };
114 static const WCHAR undefinedW[] = {'u','n','d','e','f','i','n','e','d',0};
116 if(!jsstr_alloc_buf(0, &empty_str))
118 if(!(nan_str = jsstr_alloc(NaNW)))
120 if(!(undefined_str = jsstr_alloc(undefinedW)))
125 void free_strings(void)
127 jsstr_release(empty_str);
128 jsstr_release(nan_str);
129 jsstr_release(undefined_str);