code review 4645069: reflect: support for struct tag use by multiple packages

src/cmd/godoc/codewalk.go

 // Copyright 2010 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.
 
 // The /doc/codewalk/ tree is synthesized from codewalk descriptions,
 // files named $GOROOT/doc/codewalk/*.xml.
 // For an example and a description of the format, see
 // http://golang.org/doc/codewalk/codewalk or run godoc -http=:6060
 // and see http://localhost:6060/doc/codewalk/codewalk .
 // That page is itself a codewalk; the source code for it is
@@ skipping 56 matching lines @@
                 return
         }
 
         b := applyTemplate(codewalkHTML, "codewalk", cw)
         servePage(w, "Codewalk: "+cw.Title, "", "", b)
 }
 
 
 // A Codewalk represents a single codewalk read from an XML file.
 type Codewalk struct {
-        Title string "attr"
+        Title string `xml:"attr"`
         File  []string
         Step  []*Codestep
 }
 
 
 // A Codestep is a single step in a codewalk.
 type Codestep struct {
         // Filled in from XML
-        Src   string "attr"
-        Title string "attr"
-        XML   string "innerxml"
+        Src   string `xml:"attr"`
+        Title string `xml:"attr"`
+        XML   string `xml:"innerxml"`
 
         // Derived from Src; not in XML.
         Err    os.Error
         File   string
         Lo     int
         LoByte int
         Hi     int
         HiByte int
         Data   []byte
 }
@@ skipping 391 matching lines @@
         for j, c := range data {
                 if j == i {
                         return l
                 }
                 if c == '\n' {
                         l++
                 }
         }
         return l
 }