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EnigmA Amiga Run 1995 November
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EnigmA AMIGA RUN 02 (1995)(G.R. Edizioni)(IT)[!][issue 1995-11][Skylink CD].iso
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string.c
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C/C++ Source or Header
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1994-06-01
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3KB
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81 lines
/*
* 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);
}