pkg/metricsx: Initial commit

1 files changed, 39 insertions, 0 deletions

diff --git a/pkg/metricsx/metricsx.go b/pkg/metricsx/metricsx.go
new file mode 100644
index 0000000..bc37843
--- /dev/null
+++ b/pkg/metricsx/metricsx.go
@@ -0,0 +1,39 @@
+// Package metricsx extends github.com/VictoriaMetrics/metrics.
+package metricsx
+
+import "strings"
+
+func splitName(name string) (base, arg string) {
+	if n := len(name); n != 0 {
+		base = name
+		for i, r := range base {
+			if r == '{' {
+				if j := len(base) - 1; j > i && base[j] == '}' {
+					base, arg = base[:i], base[i+1:j]
+					break
+				}
+			}
+		}
+	}
+	return
+}
+
+func formatName(base, arg string, args ...string) string {
+	var b strings.Builder
+	b.WriteString(base)
+	b.WriteByte('{')
+	if arg != "" {
+		b.WriteString(arg)
+	}
+	for i := 1; i < len(args); i += 2 {
+		if arg != "" || i > 1 {
+			b.WriteByte(',')
+		}
+		b.WriteString(args[i-1])
+		b.WriteString("=\"")
+		b.WriteString(args[i])
+		b.WriteByte('"')
+	}
+	b.WriteByte('}')
+	return b.String()
+}