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/***************************************************************************
corestr.c
Core string functions used throughout MAME.
Copyright (c) 1996-2007, Nicola Salmoria and the MAME Team.
Visit http://mamedev.org for licensing and usage restrictions.
****************************************************************************/
#include "corestr.h"
#include <ctype.h>
#include <stdlib.h>
/*-------------------------------------------------
core_stricmp - case-insensitive string compare
-------------------------------------------------*/
int core_stricmp(const char *s1, const char *s2)
{
for (;;)
{
int c1 = tolower(*s1++);
int c2 = tolower(*s2++);
if (c1 == 0 || c1 != c2)
return c1 - c2;
}
}
/*-------------------------------------------------
core_strnicmp - case-insensitive string compare
-------------------------------------------------*/
int core_strnicmp(const char *s1, const char *s2, size_t n)
{
size_t i;
for (i = 0; i < n; i++)
{
int c1 = tolower(*s1++);
int c2 = tolower(*s2++);
if (c1 == 0 || c1 != c2)
return c1 - c2;
}
return 0;
}
/*-------------------------------------------------
core_strwildcmp - case-insensitive wildcard
string compare (up to 8 characters at the
moment)
-------------------------------------------------*/
int core_strwildcmp(const char *sp1, const char *sp2)
{
char s1[9], s2[9];
int i, l1, l2;
char *p;
strncpy(s1, sp1, 8); s1[8] = 0; if (s1[0] == 0) strcpy(s1, "*");
strncpy(s2, sp2, 8); s2[8] = 0; if (s2[0] == 0) strcpy(s2, "*");
p = strchr(s1, '*');
if (p)
{
for (i = p - s1; i < 8; i++) s1[i] = '?';
s1[8] = 0;
}
p = strchr(s2, '*');
if (p)
{
for (i = p - s2; i < 8; i++) s2[i] = '?';
s2[8] = 0;
}
l1 = (int)strlen(s1);
if (l1 < 8)
{
for (i = l1 + 1; i < 8; i++) s1[i] = ' ';
s1[8] = 0;
}
l2 = (int)strlen(s2);
if (l2 < 8)
{
for (i = l2 + 1; i < 8; i++) s2[i] = ' ';
s2[8] = 0;
}
for (i = 0; i < 8; i++)
{
if (s1[i] == '?' && s2[i] != '?') s1[i] = s2[i];
if (s2[i] == '?' && s1[i] != '?') s2[i] = s1[i];
}
return core_stricmp(s1, s2);
}
/*-------------------------------------------------
core_strdup - string duplication via malloc
-------------------------------------------------*/
char *core_strdup(const char *str)
{
char *cpy = NULL;
if (str != NULL)
{
cpy = malloc(strlen(str) + 1);
if (cpy != NULL)
strcpy(cpy, str);
}
return cpy;
}
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