First commit

trim.c

@@ -0,0 +1,31 @@
+#include "trim.h"
+
+char * ltrim(char *s) {
+	char *start = s;
+
+	// Find first non-whitespace character.
+	while (isspace(*start))
+		start++;
+
+	// Move string part to beginning, including null terminator.
+	memmove(s, start, strlen(start) + 1);
+
+	return s;
+}
+
+char * rtrim(char *s) {
+	char *end = s + strlen(s);
+
+	// Find last non-whitespace character.
+	while ((end != s) && isspace(*(end - 1)))
+		end--;
+
+	// Mark new string endpoint.
+	*end = '\0';
+
+	return s;
+}
+
+char * trim(char *s) {
+	return ltrim(rtrim(s));
+}