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- /*
- * String manipulation routines
- */
- /* (C) Copyright 1993 by John G. Myers
- * All Rights Reserved.
- *
- * Permission to use, copy, modify, distribute, and sell this software
- * and its documentation for any purpose is hereby granted without
- * fee, provided that the above copyright notice appear in all copies
- * and that both that copyright notice and this permission notice
- * appear in supporting documentation, and that the name of John G.
- * Myers not be used in advertising or publicity pertaining to
- * distribution of the software without specific, written prior
- * permission. John G. Myers makes no representations about the
- * suitability of this software for any purpose. It is provided "as
- * is" without express or implied warranty.
- *
- * JOHN G. MYERS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
- * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
- * FITNESS, IN NO EVENT SHALL JOHN G. MYERS BE LIABLE FOR ANY SPECIAL,
- * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
- * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
- * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
- #include <ctype.h>
-
- static unsigned char upcase[256] = {
- 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
- 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
- ' ','!','"','#','$','%','&', 39,'(',')','*','+',',','-','.','/',
- '0','1','2','3','4','5','6','7','8','9',':',';','<','=','>','?',
- '@','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O',
- 'P','Q','R','S','T','U','V','W','X','Y','Z','[', 92,']','^','_',
- '`','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O',
- 'P','Q','R','S','T','U','V','W','X','Y','Z','{','|','}','~',127,
- 128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,
- 144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,
- 160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,
- 176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,
- 192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,
- 208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,
- 224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,
- 240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255};
-
- #define UPC(x) (upcase[(unsigned char)(x)])
-
- /*
- * Same as strcmp, but case-insensitive.
- */
- int
- cistrcmp(s1,s2)
- register char *s1,*s2;
- {
- register char c1;
- while ((c1 = *s1) && UPC(c1) == UPC(*s2)) {
- s1++;
- s2++;
- }
- return UPC(c1) - UPC(*s2);
- }
-
- /*
- * Same as strncmp, but case-insensitive.
- */
- int
- cistrncmp(s1,s2,n)
- register char *s1,*s2;
- int n;
- {
- register char c1;
- while (n-- && (c1 = *s1) && UPC(c1) == UPC(*s2)) {
- s1++;
- s2++;
- }
- if (n == -1) return 0;
- return UPC(c1) - UPC(*s2);
- }
-
-