2 * Unicode string manipulation functions
4 * Copyright 2000 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #include "wine/unicode.h"
25 int strcmpiW( const WCHAR *str1, const WCHAR *str2 )
29 int ret = toupperW(*str1) - toupperW(*str2);
30 if (ret || !*str1) return ret;
36 int strncmpiW( const WCHAR *str1, const WCHAR *str2, int n )
39 for ( ; n > 0; n--, str1++, str2++)
40 if ((ret = toupperW(*str1) - toupperW(*str2)) || !*str1) break;
44 WCHAR *strstrW( const WCHAR *str, const WCHAR *sub )
48 const WCHAR *p1 = str, *p2 = sub;
49 while (*p1 && *p2 && *p1 == *p2) { p1++; p2++; }
50 if (!*p2) return (WCHAR *)str;
56 /* strtolW and strtoulW implementation based on the GNU C library code */
57 /* Copyright (C) 1991,92,94,95,96,97,98,99,2000,2001 Free Software Foundation, Inc. */
59 long int strtolW( const WCHAR *nptr, WCHAR **endptr, int base )
62 register unsigned long int cutoff;
63 register unsigned int cutlim;
64 register unsigned long int i;
65 register const WCHAR *s;
67 const WCHAR *save, *end;
70 if (base < 0 || base == 1 || base > 36) return 0;
74 /* Skip white space. */
79 /* Check for a sign. */
89 /* Recognize number prefix and if BASE is zero, figure it out ourselves. */
92 if ((base == 0 || base == 16) && toupperW(s[1]) == 'X')
103 /* Save the pointer so we can check later if anything happened. */
107 cutoff = ULONG_MAX / (unsigned long int) base;
108 cutlim = ULONG_MAX % (unsigned long int) base;
113 for (;c != '\0'; c = *++s)
117 if (c >= '0' && c <= '9')
119 else if (isalphaW (c))
120 c = toupperW (c) - 'A' + 10;
125 /* Check for overflow. */
126 if (i > cutoff || (i == cutoff && c > cutlim))
130 i *= (unsigned long int) base;
135 /* Check if anything actually happened. */
139 /* Store in ENDPTR the address of one character
140 past the last character we converted. */
142 *endptr = (WCHAR *)s;
144 /* Check for a value that is within the range of
145 `unsigned LONG int', but outside the range of `LONG int'. */
148 ? -((unsigned long int) (LONG_MIN + 1)) + 1
149 : (unsigned long int) LONG_MAX))
154 return negative ? LONG_MIN : LONG_MAX;
157 /* Return the result of the appropriate sign. */
158 return negative ? -i : i;
161 /* We must handle a special case here: the base is 0 or 16 and the
162 first two characters are '0' and 'x', but the rest are no
163 hexadecimal digits. This is no error case. We return 0 and
164 ENDPTR points to the `x`. */
167 if (save - nptr >= 2 && toupperW (save[-1]) == 'X'
169 *endptr = (WCHAR *)&save[-1];
171 /* There was no number to convert. */
172 *endptr = (WCHAR *)nptr;
179 unsigned long int strtoulW( const WCHAR *nptr, WCHAR **endptr, int base )
182 register unsigned long int cutoff;
183 register unsigned int cutlim;
184 register unsigned long int i;
185 register const WCHAR *s;
187 const WCHAR *save, *end;
190 if (base < 0 || base == 1 || base > 36) return 0;
194 /* Skip white space. */
195 while (isspaceW (*s))
197 if (!*s) goto noconv;
199 /* Check for a sign. */
209 /* Recognize number prefix and if BASE is zero, figure it out ourselves. */
212 if ((base == 0 || base == 16) && toupperW(s[1]) == 'X')
223 /* Save the pointer so we can check later if anything happened. */
227 cutoff = ULONG_MAX / (unsigned long int) base;
228 cutlim = ULONG_MAX % (unsigned long int) base;
233 for (;c != '\0'; c = *++s)
237 if (c >= '0' && c <= '9')
239 else if (isalphaW (c))
240 c = toupperW (c) - 'A' + 10;
245 /* Check for overflow. */
246 if (i > cutoff || (i == cutoff && c > cutlim))
250 i *= (unsigned long int) base;
255 /* Check if anything actually happened. */
259 /* Store in ENDPTR the address of one character
260 past the last character we converted. */
262 *endptr = (WCHAR *)s;
269 /* Return the result of the appropriate sign. */
270 return negative ? -i : i;
273 /* We must handle a special case here: the base is 0 or 16 and the
274 first two characters are '0' and 'x', but the rest are no
275 hexadecimal digits. This is no error case. We return 0 and
276 ENDPTR points to the `x`. */
279 if (save - nptr >= 2 && toupperW (save[-1]) == 'X'
281 *endptr = (WCHAR *)&save[-1];
283 /* There was no number to convert. */
284 *endptr = (WCHAR *)nptr;