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-rw-r--r--src/lib/util/corestr.c120
1 files changed, 120 insertions, 0 deletions
diff --git a/src/lib/util/corestr.c b/src/lib/util/corestr.c
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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;
+}