initial commit

vendor/github.com/valyala/fasttemplate/README.md

@@ -0,0 +1,85 @@
+fasttemplate
+============
+
+Simple and fast template engine for Go.
+
+Fasttemplate peforms only a single task - it substitutes template placeholders
+with user-defined values. At high speed :)
+
+Take a look at [quicktemplate](https://github.com/valyala/quicktemplate) if you  need fast yet powerful html template engine.
+
+*Please note that fasttemplate doesn't do any escaping on template values
+unlike [html/template](http://golang.org/pkg/html/template/) do. So values
+must be properly escaped before passing them to fasttemplate.*
+
+Fasttemplate is faster than [text/template](http://golang.org/pkg/text/template/),
+[strings.Replace](http://golang.org/pkg/strings/#Replace),
+[strings.Replacer](http://golang.org/pkg/strings/#Replacer)
+and [fmt.Fprintf](https://golang.org/pkg/fmt/#Fprintf) on placeholders' substitution.
+
+Below are benchmark results comparing fasttemplate performance to text/template,
+strings.Replace, strings.Replacer and fmt.Fprintf:
+
+```
+$ go test -bench=. -benchmem
+PASS
+BenchmarkFmtFprintf-4                   	 2000000	       790 ns/op	       0 B/op	       0 allocs/op
+BenchmarkStringsReplace-4               	  500000	      3474 ns/op	    2112 B/op	      14 allocs/op
+BenchmarkStringsReplacer-4              	  500000	      2657 ns/op	    2256 B/op	      23 allocs/op
+BenchmarkTextTemplate-4                 	  500000	      3333 ns/op	     336 B/op	      19 allocs/op
+BenchmarkFastTemplateExecuteFunc-4      	 5000000	       349 ns/op	       0 B/op	       0 allocs/op
+BenchmarkFastTemplateExecute-4          	 3000000	       383 ns/op	       0 B/op	       0 allocs/op
+BenchmarkFastTemplateExecuteFuncString-4	 3000000	       549 ns/op	     144 B/op	       1 allocs/op
+BenchmarkFastTemplateExecuteString-4    	 3000000	       572 ns/op	     144 B/op	       1 allocs/op
+BenchmarkFastTemplateExecuteTagFunc-4   	 2000000	       743 ns/op	     144 B/op	       3 allocs/op
+```
+
+
+Docs
+====
+
+See http://godoc.org/github.com/valyala/fasttemplate .
+
+
+Usage
+=====
+
+```go
+	template := "http://{{host}}/?q={{query}}&foo={{bar}}{{bar}}"
+	t := fasttemplate.New(template, "{{", "}}")
+	s := t.ExecuteString(map[string]interface{}{
+		"host":  "google.com",
+		"query": url.QueryEscape("hello=world"),
+		"bar":   "foobar",
+	})
+	fmt.Printf("%s", s)
+
+	// Output:
+	// http://google.com/?q=hello%3Dworld&foo=foobarfoobar
+```
+
+
+Advanced usage
+==============
+
+```go
+	template := "Hello, [user]! You won [prize]!!! [foobar]"
+	t, err := fasttemplate.NewTemplate(template, "[", "]")
+	if err != nil {
+		log.Fatalf("unexpected error when parsing template: %s", err)
+	}
+	s := t.ExecuteFuncString(func(w io.Writer, tag string) (int, error) {
+		switch tag {
+		case "user":
+			return w.Write([]byte("John"))
+		case "prize":
+			return w.Write([]byte("$100500"))
+		default:
+			return w.Write([]byte(fmt.Sprintf("[unknown tag %q]", tag)))
+		}
+	})
+	fmt.Printf("%s", s)
+
+	// Output:
+	// Hello, John! You won $100500!!! [unknown tag "foobar"]
+```