devlopment branch (#1736)

vendor/github.com/chai2010/gettext-go/gettext/caller.go

@@ -0,0 +1,39 @@
+// Copyright 2013 ChaiShushan <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package gettext
+
+import (
+	"regexp"
+	"runtime"
+)
+
+var (
+	reInit    = regexp.MustCompile(`init·\d+$`) // main.init·1
+	reClosure = regexp.MustCompile(`func·\d+$`) // main.func·001
+)
+
+// caller types:
+// runtime.goexit
+// runtime.main
+// main.init
+// main.main
+// main.init·1 -> main.init
+// main.func·001 -> main.func
+// code.google.com/p/gettext-go/gettext.TestCallerName
+// ...
+func callerName(skip int) string {
+	pc, _, _, ok := runtime.Caller(skip)
+	if !ok {
+		return ""
+	}
+	name := runtime.FuncForPC(pc).Name()
+	if reInit.MatchString(name) {
+		return reInit.ReplaceAllString(name, "init")
+	}
+	if reClosure.MatchString(name) {
+		return reClosure.ReplaceAllString(name, "func")
+	}
+	return name
+}