1 files changed, 54 insertions, 0 deletions

diff --git a/src/pkg/template/format.go b/src/pkg/template/format.go
new file mode 100644
index 000000000..4fb5393b9
--- /dev/null
+++ b/src/pkg/template/format.go
@@ -0,0 +1,54 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Template library: default formatters
+
+package template
+
+import (
+	"fmt";
+	"io";
+	"reflect";
+)
+
+// StringFormatter formats into the default string representation.
+// It is stored under the name "str" and is the default formatter.
+// You can override the default formatter by storing your default
+// under the name "" in your custom formatter map.
+func StringFormatter(w io.Writer, value interface{}, format string) {
+	fmt.Fprint(w, value);
+}
+
+
+var esc_amp = io.StringBytes("&")
+var esc_lt = io.StringBytes("<")
+var esc_gt = io.StringBytes(">")
+
+// HtmlEscape writes to w the properly escaped HTML equivalent
+// of the plain text data s.
+func HtmlEscape(w io.Writer, s []byte) {
+	last := 0;
+	for i, c := range s {
+		if c == '&' || c == '<' || c == '>' {
+			w.Write(s[last:i]);
+			switch c {
+			case '&':
+				w.Write(esc_amp);
+			case '<':
+				w.Write(esc_lt);
+			case '>':
+				w.Write(esc_gt);
+			}
+			last = i+1;
+		}
+	}
+	w.Write(s[last:len(s)]);
+}
+
+// HtmlFormatter formats arbitrary values for HTML
+func HtmlFormatter(w io.Writer, value interface{}, format string) {
+	var b io.ByteBuffer;
+	fmt.Fprint(&b, value);
+	HtmlEscape(w, b.Data());
+}