1 files changed, 28 insertions, 0 deletions
diff --git a/src/string_utils.c b/src/string_utils.c
index 65af0f2..ee5bb2d 100644
--- a/src/string_utils.c
+++ b/src/string_utils.c
@@ -127,3 +127,31 @@ TEST_CASE(strtod_simple) {
 	TEST_EQUAL(result, 0.5);
 	TEST_EQUAL(*end, '\0');
 }
+
+const char *trim_both(const char *src, size_t *length) {
+	size_t i = 0;
+	while (isspace(src[i])) {
+		i++;
+	}
+	size_t j = strlen(src) - 1;
+	while (j > i && isspace(src[j])) {
+		j--;
+	}
+	*length = j - i + 1;
+	return src + i;
+}
+
+TEST_CASE(trim_both) {
+	size_t length;
+	const char *str = trim_both("  \t\n\r\f", &length);
+	TEST_EQUAL(length, 0);
+	TEST_EQUAL(*str, '\0');
+
+	str = trim_both(" asdfas  ", &length);
+	TEST_EQUAL(length, 6);
+	TEST_STRNEQUAL(str, "asdfas", length);
+
+	str = trim_both("  asdf asdf   ", &length);
+	TEST_EQUAL(length, 9);
+	TEST_STRNEQUAL(str, "asdf asdf", length);
+}