/usr/share/gocode/src/github.com/masterzen/simplexml/dom/element.go is in golang-github-masterzen-simplexml-dev 0.0~git20140219.95ba304-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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import (
"encoding/xml"
"fmt"
"bytes"
)
type Attr struct {
Name xml.Name // Attribute namespace and name.
Value string // Attribute value.
}
type Element struct {
name xml.Name
children []*Element
parent *Element
content string
attributes []*Attr
namespaces []*Namespace
document *Document
}
func CreateElement(n string) *Element {
element := &Element { name: xml.Name { Local: n } }
element.children = make([]*Element, 0, 5)
element.attributes = make([]*Attr, 0, 10)
element.namespaces = make([]*Namespace, 0, 10)
return element
}
func (node *Element) AddChild(child *Element) *Element {
if child.parent != nil {
child.parent.RemoveChild(child)
}
child.SetParent(node)
node.children = append(node.children, child)
return node
}
func (node *Element) RemoveChild(child *Element) *Element {
p := -1
for i, v := range node.children {
if v == child {
p = i
break
}
}
if p == -1 {
return node
}
copy(node.children[p:], node.children[p+1:])
node.children = node.children[0 : len(node.children)-1]
child.parent = nil
return node
}
func (node *Element) SetAttr(name string, value string) *Element {
// namespaces?
attr := &Attr{ Name: xml.Name { Local: name }, Value: value }
node.attributes = append(node.attributes, attr)
return node
}
func (node *Element) SetParent(parent *Element) *Element {
node.parent = parent
return node
}
func (node *Element) SetContent(content string) *Element {
node.content = content
return node
}
// Add a namespace declaration to this node
func (node *Element) DeclareNamespace(ns Namespace) *Element {
// check if we already have it
prefix := node.namespacePrefix(ns.Uri)
if prefix == ns.Prefix {
return node
}
// add it
node.namespaces = append(node.namespaces, &ns)
return node
}
func (node *Element) DeclaredNamespaces() []*Namespace {
return node.namespaces
}
func (node *Element) SetNamespace(prefix string, uri string) {
resolved := node.namespacePrefix(uri)
if resolved == "" {
// we couldn't find the namespace, let's declare it at this node
node.namespaces = append(node.namespaces, &Namespace { Prefix: prefix, Uri: uri })
}
node.name.Space = uri
}
func (node *Element) Bytes(out *bytes.Buffer, indent bool, indentType string, level int) {
empty := len(node.children) == 0 && node.content == ""
content := node.content != ""
// children := len(node.children) > 0
// ns := len(node.namespaces) > 0
// attrs := len(node.attributes) > 0
indentStr := ""
nextLine := ""
if indent {
nextLine = "\n"
for i := 0; i < level; i++ {
indentStr += indentType
}
}
if node.name.Local != "" {
if len(node.name.Space) > 0 {
// first find if ns has been declared, otherwise
prefix := node.namespacePrefix(node.name.Space)
fmt.Fprintf(out, "%s<%s:%s", indentStr, prefix, node.name.Local)
} else {
fmt.Fprintf(out, "%s<%s", indentStr, node.name.Local)
}
}
// declared namespaces
for _, v := range node.namespaces {
prefix := node.namespacePrefix(v.Uri)
fmt.Fprintf(out, ` xmlns:%s="%s"`, prefix, v.Uri)
}
// attributes
for _, v := range node.attributes {
if len(v.Name.Space) > 0 {
prefix := node.namespacePrefix(v.Name.Space)
fmt.Fprintf(out, ` %s:%s="%s"`, prefix, v.Name.Local, v.Value)
} else {
fmt.Fprintf(out, ` %s="%s"`, v.Name.Local, v.Value)
}
}
// close tag
if empty {
fmt.Fprintf(out, "/>%s", nextLine)
} else {
if content {
out.WriteRune('>')
} else {
fmt.Fprintf(out, ">%s", nextLine)
}
}
if len(node.children) > 0 {
for _, child := range node.children {
child.Bytes(out, indent, indentType, level + 1)
}
} else if node.content != "" {
//val := []byte(node.content)
//xml.EscapeText(out, val)
out.WriteString(node.content)
}
if !empty && len(node.name.Local) > 0 {
var indentation string
if content {
indentation = ""
} else {
indentation = indentStr
}
if len(node.name.Space) > 0 {
prefix := node.namespacePrefix(node.name.Space)
fmt.Fprintf(out, "%s</%s:%s>\n", indentation, prefix, node.name.Local)
} else {
fmt.Fprintf(out, "%s</%s>\n", indentation, node.name.Local)
}
}
}
// Finds the prefix of the given namespace if it has been declared
// in this node or in one of its parent
func (node *Element) namespacePrefix(uri string) string {
for _, ns := range node.namespaces {
if ns.Uri == uri {
return ns.Prefix
}
}
if node.parent == nil {
return ""
}
return node.parent.namespacePrefix(uri)
}
func (node *Element) String() string {
var b bytes.Buffer
node.Bytes(&b, false, "", 0)
return string(b.Bytes())
}
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