1 files changed, 31 insertions, 0 deletions
diff --git a/libbb/trim.c b/libbb/trim.c
new file mode 100644
index 0000000..ea20ff3
--- /dev/null
+++ b/libbb/trim.c
@@ -0,0 +1,31 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Utility routines.
+ *
+ * Copyright (C) many different people.
+ * If you wrote this, please acknowledge your work.
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ */
+
+#include "libbb.h"
+
+void FAST_FUNC trim(char *s)
+{
+	size_t len = strlen(s);
+	size_t lws;
+
+	/* trim trailing whitespace */
+	while (len && isspace(s[len-1]))
+		--len;
+
+	/* trim leading whitespace */
+	if (len) {
+		lws = strspn(s, " \n\r\t\v");
+		if (lws) {
+			len -= lws;
+			memmove(s, s + lws, len);
+		}
+	}
+	s[len] = '\0';
+}