Rewrite fzf in Go

src/options_test.go

@@ -0,0 +1,37 @@
+package fzf
+
+import "testing"
+
+func TestDelimiterRegex(t *testing.T) {
+	rx := delimiterRegexp("*")
+	tokens := rx.FindAllString("-*--*---**---", -1)
+	if tokens[0] != "-*" || tokens[1] != "--*" || tokens[2] != "---*" ||
+		tokens[3] != "*" || tokens[4] != "---" {
+		t.Errorf("%s %s %d", rx, tokens, len(tokens))
+	}
+}
+
+func TestSplitNth(t *testing.T) {
+	{
+		ranges := splitNth("..")
+		if len(ranges) != 1 ||
+			ranges[0].begin != RANGE_ELLIPSIS ||
+			ranges[0].end != RANGE_ELLIPSIS {
+			t.Errorf("%s", ranges)
+		}
+	}
+	{
+		ranges := splitNth("..3,1..,2..3,4..-1,-3..-2,..,2,-2")
+		if len(ranges) != 8 ||
+			ranges[0].begin != RANGE_ELLIPSIS || ranges[0].end != 3 ||
+			ranges[1].begin != 1 || ranges[1].end != RANGE_ELLIPSIS ||
+			ranges[2].begin != 2 || ranges[2].end != 3 ||
+			ranges[3].begin != 4 || ranges[3].end != -1 ||
+			ranges[4].begin != -3 || ranges[4].end != -2 ||
+			ranges[5].begin != RANGE_ELLIPSIS || ranges[5].end != RANGE_ELLIPSIS ||
+			ranges[6].begin != 2 || ranges[6].end != 2 ||
+			ranges[7].begin != -2 || ranges[7].end != -2 {
+			t.Errorf("%s", ranges)
+		}
+	}
+}