X-Git-Url: https://git.deb.at/w?a=blobdiff_plain;f=misc.c;h=0f96b7a878316948c11d98a70259865d5e70ac55;hb=7c88cafcd333277b6bfd55370a5ec1c5b76c2b0d;hp=01bdd545095073254211065d076f4930a9b11b3f;hpb=4909ba20244f55ee7326a40d751cf6737c2bc2b6;p=pkg%2Fabook.git

diff --git a/misc.c b/misc.c
index 01bdd54..0f96b7a 100644
--- a/misc.c
+++ b/misc.c
@@ -64,6 +64,41 @@ strtrim(char *s)
 	return s;
 }
 
+int
+is_number(char *p)
+{
+	if(!p || !*p || (*p == '-' && !*++p))
+		return 0;
+
+	for(; *p; p++)
+		if(!isdigit(*p))
+			return 0;
+
+	return 1;
+}
+
+#ifndef HAVE_STRCASESTR
+char *
+strcasestr(const char *haystack, const char *needle)
+{
+	int i;
+	int k;
+
+	assert(haystack != NULL);
+	assert(needle != NULL);
+
+	for(i=0; i<strlen(haystack)-strlen(needle)+1; i++) {
+		for(k=0; k<strlen(needle); k++, i++) {
+			if (tolower(haystack[i]) != tolower(needle[k]))
+				break;
+			else if ((k+1) == strlen(needle))
+				return &haystack[i];
+		}
+	}
+
+	return NULL;
+}
+#endif
 
 #ifdef HAVE_CONFIG_H
 #	include "config.h"