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1180 lines (1087 loc) · 31.5 KB
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package xpath
import (
"bytes"
"fmt"
"math"
"reflect"
"sort"
"strings"
"testing"
)
var (
employee_example = createEmployeeExample()
book_example = createBookExample()
html_example = createHtmlExample()
empty_example = createNode("", RootNode)
mybook_example = createMyBookExample()
)
type testQuery string
func (t testQuery) Select(_ iterator) NodeNavigator {
panic("implement me")
}
func (t testQuery) Clone() query {
return t
}
func (t testQuery) Evaluate(_ iterator) interface{} {
return string(t)
}
func (t testQuery) ValueType() resultType {
return xpathResultType.Any
}
func (t testQuery) Properties() queryProp {
return queryProps.None
}
func test_xpath_elements(t *testing.T, root *TNode, expr string, expected ...int) {
result := selectNodes(root, expr)
var gotLines []int
for i := 0; i < len(result); i++ {
gotLines = append(gotLines, result[i].lines)
}
if !reflect.DeepEqual(gotLines, expected) {
t.Fatalf("expected lines %+v, got %+v", expected, gotLines)
}
}
func test_xpath_values(t testing.TB, root *TNode, expr string, expected ...string) {
result := selectNodes(root, expr)
assertEqual(t, len(expected), len(result))
for i := 0; i < len(expected); i++ {
assertEqual(t, expected[i], result[i].Value())
}
}
func test_xpath_tags(t *testing.T, root *TNode, expr string, expected ...string) {
result := selectNodes(root, expr)
assertEqual(t, len(expected), len(result))
for i := 0; i < len(expected); i++ {
assertEqual(t, expected[i], result[i].Data)
}
}
func test_xpath_count(t *testing.T, root *TNode, expr string, expected int) {
result := selectNodes(root, expr)
assertEqual(t, expected, len(result))
}
func test_xpath_eval(t *testing.T, root *TNode, expr string, expected ...interface{}) {
e, err := Compile(expr)
assertNoErr(t, err)
v := e.Evaluate(createNavigator(root))
// if is a node-set
if iter, ok := v.(*NodeIterator); ok {
got := iterateNavs(iter)
assertEqual(t, len(expected), len(got))
for i := 0; i < len(expected); i++ {
assertEqual(t, expected[i], got[i])
}
return
}
assertEqual(t, expected[0], v)
}
func Test_Predicates_MultiParent(t *testing.T) {
// https://github.com/antchfx/xpath/issues/75
/*
<measCollecFile xmlns="http://www.3gpp.org/ftp/specs/archive/32_series/32.435#measCollec">
<measData>
<measInfo>
<measType p="1">field1</measType>
<measType p="2">field2</measType>
<measValue>
<r p="1">31854</r>
<r p="2">159773</r>
</measValue>
</measInfo>
<measInfo measInfoId="metric_name2">
<measType p="1">field3</measType>
<measType p="2">field4</measType>
<measValue>
<r p="1">1234</r>
<r p="2">567</r>
</measValue>
</measInfo>
</measData>
</measCollecFile>
*/
doc := createNode("", RootNode)
measCollecFile := doc.createChildNode("measCollecFile", ElementNode)
measData := measCollecFile.createChildNode("measData", ElementNode)
data := []struct {
measType map[string]string
measValue map[string]string
}{
{measType: map[string]string{"1": "field1", "2": "field2"}, measValue: map[string]string{"1": "31854", "2": "159773"}},
{measType: map[string]string{"1": "field3", "2": "field4"}, measValue: map[string]string{"1": "1234", "2": "567"}},
}
for j := 0; j < len(data); j++ {
d := data[j]
measInfo := measData.createChildNode("measInfo", ElementNode)
measType := measInfo.createChildNode("measType", ElementNode)
var keys []string
for k := range d.measType {
keys = append(keys, k)
}
sort.Strings(keys)
for _, k := range keys {
measType.addAttribute("p", k)
measType.createChildNode(d.measType[k], TextNode)
}
measValue := measInfo.createChildNode("measValue", ElementNode)
keys = make([]string, 0)
for k := range d.measValue {
keys = append(keys, k)
}
sort.Strings(keys)
for _, k := range keys {
r := measValue.createChildNode("r", ElementNode)
r.addAttribute("p", k)
r.createChildNode(d.measValue[k], TextNode)
}
}
test_xpath_values(t, doc, `//r[@p=../../measType/@p]`, "31854", "159773", "1234", "567")
}
func TestCompile(t *testing.T) {
var err error
_, err = Compile("//a")
assertNil(t, err)
_, err = Compile("//a[id=']/span")
assertErr(t, err)
_, err = Compile("//ul/li/@class")
assertNil(t, err)
_, err = Compile("/a/b/(c, .[not(c)])")
assertNil(t, err)
_, err = Compile("/pre:foo")
assertNil(t, err)
}
func TestInvalidXPath(t *testing.T) {
tests := []struct {
name string
expr string
}{
{"empty sequence", "()"},
{"multiple sequence values", "(1,2,3)"},
{"empty expression", ""},
// Function arity violations
{"matches with 1 arg", "matches('a')"},
{"matches with 3 args", "matches('a', 'b', 'c')"},
{"matches with invalid regex literal", "matches('test', '[a-')"},
{"substring with 1 arg", "substring('abc')"},
{"substring-before with 1 arg", "substring-before('abc')"},
{"substring-before with 3 args", "substring-before('a', 'b', 'c')"},
{"substring-after with 1 arg", "substring-after('abc')"},
{"substring-after with 3 args", "substring-after('a', 'b', 'c')"},
{"string-length with no args", "string-length()"},
{"replace with 2 args", "replace('a', 'b')"},
{"replace with 4 args", "replace('a', 'b', 'c', 'd')"},
{"translate with 2 args", "translate('a', 'b')"},
{"translate with 4 args", "translate('a', 'b', 'c', 'd')"},
{"not with no args", "not()"},
{"name with 2 args", "name(//a, //b)"},
{"local-name with 2 args", "local-name(//a, //b)"},
{"namespace-uri with 2 args", "namespace-uri(//a, //b)"},
{"boolean with 2 args", "boolean(1, 2)"},
{"number with 2 args", "number(1, 2)"},
{"string with 2 args", "string('a', 'b')"},
{"count with no args", "count()"},
{"sum with no args", "sum()"},
{"ceiling with no args", "ceiling()"},
{"floor with no args", "floor()"},
{"round with no args", "round()"},
{"concat with no args", "concat()"},
{"concat with 1 arg", "concat('a')"},
{"reverse with no args", "reverse()"},
{"string-join with 1 arg", "string-join(//a)"},
{"string-join with 3 args", "string-join(//a, ',', 'extra')"},
// Unsupported / unknown functions
{"unsupported function", "unsupportedFunction(1, 2)"},
// Nested invalid expression errors in function arguments
{"lower-case with invalid arg", "lower-case(())"},
{"starts-with with invalid arg 1", "starts-with((), 'a')"},
{"starts-with with invalid arg 2", "starts-with('a', ())"},
{"ends-with with invalid arg 1", "ends-with((), 'a')"},
{"ends-with with invalid arg 2", "ends-with('a', ())"},
{"contains with invalid arg 1", "contains((), 'a')"},
{"contains with invalid arg 2", "contains('a', ())"},
{"matches with invalid arg 1", "matches((), 'pattern')"},
{"matches with invalid arg 2", "matches('str', ())"},
{"substring with invalid arg 1", "substring((), 1)"},
{"substring with invalid arg 2", "substring('abc', ())"},
{"substring with invalid arg 3", "substring('abc', 1, ())"},
{"substring-before with invalid arg 1", "substring-before((), 'a')"},
{"substring-before with invalid arg 2", "substring-before('abc', ())"},
{"substring-after with invalid arg 1", "substring-after((), 'a')"},
{"substring-after with invalid arg 2", "substring-after('abc', ())"},
{"string-length with invalid arg", "string-length(())"},
{"normalize-space with invalid arg", "normalize-space(())"},
{"replace with invalid arg 1", "replace((), 'a', 'b')"},
{"replace with invalid arg 2", "replace('a', (), 'b')"},
{"replace with invalid arg 3", "replace('a', 'b', ())"},
{"translate with invalid arg 1", "translate((), 'a', 'b')"},
{"translate with invalid arg 2", "translate('a', (), 'b')"},
{"translate with invalid arg 3", "translate('a', 'b', ())"},
{"not with invalid arg", "not(())"},
{"name with invalid arg", "name(())"},
{"local-name with invalid arg", "local-name(())"},
{"namespace-uri with invalid arg", "namespace-uri(())"},
{"boolean with invalid arg", "boolean(())"},
{"number with invalid arg", "number(())"},
{"string with invalid arg", "string(())"},
{"count with invalid arg", "count(())"},
{"sum with invalid arg", "sum(())"},
{"ceiling with invalid arg", "ceiling(())"},
{"floor with invalid arg", "floor(())"},
{"round with invalid arg", "round(())"},
{"concat with invalid arg", "concat('a', ())"},
{"reverse with invalid arg", "reverse(())"},
{"string-join with invalid arg 1", "string-join((), ',')"},
{"string-join with invalid arg 2", "string-join(//a, ())"},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
_, err := Compile(tt.expr)
if err == nil {
t.Errorf("Compile(%q) expected error for invalid XPath expression, got nil", tt.expr)
}
})
}
}
// A variable reference nested inside a larger expression used to compile
// without error and then panic at select time, because the builder had no
// case for variable nodes and left a nil sub-query behind. Compilation should
// report it as undeclared, matching the bare "$x" case.
func TestCompileUndeclaredVariable(t *testing.T) {
for _, expr := range []string{"$x", "$x/@attr", "$var + 1", "//a[$x]"} {
if _, err := Compile(expr); err == nil {
t.Errorf("Compile(%q) expected an error for the undeclared variable, got nil", expr)
}
}
}
func TestCompileWithNS(t *testing.T) {
_, err := CompileWithNS("/foo", nil)
assertNil(t, err)
_, err = CompileWithNS("/foo", map[string]string{})
assertNil(t, err)
_, err = CompileWithNS("/foo", map[string]string{"a": "b"})
assertNil(t, err)
_, err = CompileWithNS("/a:foo", map[string]string{"a": "b"})
assertNil(t, err)
_, err = CompileWithNS("/u:foo", map[string]string{"a": "b"})
assertErr(t, err)
}
func TestNamespacePrefixQuery(t *testing.T) {
/*
<?xml version="1.0" encoding="UTF-8"?>
<books>
<book>book1</book>
<b:book xmlns:b="ns">book2</b:book>
<c:book xmlns:c="ns">book3</c:book>
</books>
*/
doc := createNode("", RootNode)
books := doc.createChildNode("books", ElementNode)
books.lines = 2
book1 := books.createChildNode("book", ElementNode)
book1.lines = 3
book1.createChildNode("book1", TextNode)
book2 := books.createChildNode("b:book", ElementNode)
book2.lines = 4
book2.addAttribute("xmlns:b", "ns")
book2.createChildNode("book2", TextNode)
book3 := books.createChildNode("c:book", ElementNode)
book3.lines = 5
book3.addAttribute("xmlns:c", "ns")
book3.createChildNode("book3", TextNode)
test_xpath_elements(t, doc, `//b:book`, 4) // expected [4 , 5]
// With namespace bindings:
exp, _ := CompileWithNS("//x:book", map[string]string{"x": "ns"})
nodes := iterateNodes(exp.Select(createNavigator(doc)))
assertEqual(t, 2, len(nodes))
assertEqual(t, "book2", nodes[0].Value())
assertEqual(t, "book3", nodes[1].Value())
}
func TestMustCompile(t *testing.T) {
expr := MustCompile("//")
assertTrue(t, expr != nil)
if wanted := (nopQuery{}); expr.q != wanted {
t.Fatalf("wanted nopQuery object but got %s", expr)
}
iter := expr.Select(createNavigator(html_example))
if iter.MoveNext() {
t.Fatal("should be an empty node list but got one")
}
}
func Test_plusFunc(t *testing.T) {
// 1+1
assertEqual(t, float64(2), plusFunc(nil, float64(1), float64(1)))
// string +
assertEqual(t, float64(2), plusFunc(nil, "1", "1"))
// invalid string
v := plusFunc(nil, "a", 1)
assertTrue(t, math.IsNaN(v.(float64)))
// Nodeset
// TODO
}
func Test_minusFunc(t *testing.T) {
// 1 - 1
assertEqual(t, float64(0), minusFunc(nil, float64(1), float64(1)))
// string
assertEqual(t, float64(0), minusFunc(nil, "1", "1"))
// invalid string
v := minusFunc(nil, "a", 1)
assertTrue(t, math.IsNaN(v.(float64)))
}
func TestNodeType(t *testing.T) {
tests := []struct {
expr string
expected NodeType
}{
{`//employee`, ElementNode},
{`//name[text()]`, ElementNode},
{`//name/text()`, TextNode},
{`//employee/@id`, AttributeNode},
}
for _, test := range tests {
v := selectNode(employee_example, test.expr)
assertTrue(t, v != nil)
assertEqual(t, test.expected, v.Type)
}
doc := createNode("", RootNode)
doc.createChildNode("<!-- This is a comment -->", CommentNode)
n := selectNode(doc, "//comment()")
assertTrue(t, n != nil)
assertEqual(t, CommentNode, n.Type)
}
func iterateNavs(t *NodeIterator) []*TNodeNavigator {
var nodes []*TNodeNavigator
for t.MoveNext() {
node := t.Current().(*TNodeNavigator)
nodes = append(nodes, node)
}
return nodes
}
func iterateNodes(t *NodeIterator) []*TNode {
var nodes []*TNode
for t.MoveNext() {
n := t.Current().(*TNodeNavigator)
if n.NodeType() == AttributeNode {
childNode := &TNode{
Type: TextNode,
Data: n.Value(),
}
nodes = append(nodes, &TNode{
Parent: n.curr,
Type: AttributeNode,
Data: n.LocalName(),
FirstChild: childNode,
LastChild: childNode,
})
} else {
nodes = append(nodes, n.curr)
}
}
return nodes
}
func selectNode(root *TNode, expr string) *TNode {
list := selectNodes(root, expr)
if len(list) == 0 {
return nil
}
return list[0]
}
func selectNodes(root *TNode, expr string) []*TNode {
t := Select(createNavigator(root), expr)
c := make(map[uint64]bool)
var list []*TNode
for _, n := range iterateNodes(t) {
m := getHashCode(createNavigator(n))
if _, ok := c[m]; ok {
continue
}
c[m] = true
list = append(list, n)
}
return list
}
func joinValues(nodes []*TNode) string {
s := make([]string, 0)
for _, n := range nodes {
s = append(s, n.Value())
}
return strings.Join(s, ",")
}
func createNavigator(n *TNode) *TNodeNavigator {
return &TNodeNavigator{curr: n, root: n, attr: -1}
}
type Attribute struct {
Key, Value string
}
type TNode struct {
Parent, FirstChild, LastChild, PrevSibling, NextSibling *TNode
Type NodeType
Data string
Attr []Attribute
NamespaceURL string
Prefix string
lines int
}
func (n *TNode) Value() string {
if n.Type == TextNode {
return n.Data
}
var buff bytes.Buffer
var output func(*TNode)
output = func(node *TNode) {
if node.Type == TextNode {
buff.WriteString(node.Data)
}
for child := node.FirstChild; child != nil; child = child.NextSibling {
output(child)
}
}
output(n)
return buff.String()
}
// TNodeNavigator is for navigating TNode.
type TNodeNavigator struct {
curr, root *TNode
attr int
}
func (n *TNodeNavigator) NodeType() NodeType {
switch n.curr.Type {
case CommentNode:
return CommentNode
case TextNode:
return TextNode
case ElementNode:
if n.attr != -1 {
return AttributeNode
}
return ElementNode
}
return n.curr.Type
}
func (n *TNodeNavigator) LocalName() string {
if n.attr != -1 {
return n.curr.Attr[n.attr].Key
}
name := n.curr.Data
if strings.Contains(name, ":") {
return strings.Split(name, ":")[1]
}
return name
}
func (n *TNodeNavigator) Prefix() string {
if n.attr == -1 && strings.Contains(n.curr.Data, ":") {
return strings.Split(n.curr.Data, ":")[0]
}
return n.curr.Prefix
}
func (n *TNodeNavigator) NamespaceURL() string {
if n.Prefix() != "" {
for _, a := range n.curr.Attr {
if a.Key == "xmlns:"+n.Prefix() {
return a.Value
}
}
}
return n.curr.NamespaceURL
}
func (n *TNodeNavigator) Value() string {
switch n.curr.Type {
case CommentNode:
return n.curr.Data
case ElementNode:
if n.attr != -1 {
return n.curr.Attr[n.attr].Value
}
var buf bytes.Buffer
node := n.curr.FirstChild
for node != nil {
if node.Type == TextNode {
buf.WriteString(strings.TrimSpace(node.Data))
}
node = node.NextSibling
}
return buf.String()
case TextNode:
return n.curr.Data
}
return ""
}
func (n *TNodeNavigator) Copy() NodeNavigator {
n2 := *n
return &n2
}
func (n *TNodeNavigator) MoveToRoot() {
n.curr = n.root
}
func (n *TNodeNavigator) MoveToParent() bool {
if n.attr != -1 {
n.attr = -1
return true
} else if node := n.curr.Parent; node != nil {
n.curr = node
return true
}
return false
}
func (n *TNodeNavigator) MoveToNextAttribute() bool {
if n.attr >= len(n.curr.Attr)-1 {
return false
}
n.attr++
return true
}
func (n *TNodeNavigator) MoveToChild() bool {
if n.attr != -1 {
return false
}
if node := n.curr.FirstChild; node != nil {
n.curr = node
return true
}
return false
}
func (n *TNodeNavigator) MoveToFirst() bool {
if n.attr != -1 || n.curr.PrevSibling == nil {
return false
}
for {
node := n.curr.PrevSibling
if node == nil {
break
}
n.curr = node
}
return true
}
func (n *TNodeNavigator) String() string {
return n.Value()
}
func (n *TNodeNavigator) MoveToNext() bool {
if n.attr != -1 {
return false
}
if node := n.curr.NextSibling; node != nil {
n.curr = node
return true
}
return false
}
func (n *TNodeNavigator) MoveToPrevious() bool {
if n.attr != -1 {
return false
}
if node := n.curr.PrevSibling; node != nil {
n.curr = node
return true
}
return false
}
func (n *TNodeNavigator) MoveTo(other NodeNavigator) bool {
node, ok := other.(*TNodeNavigator)
if !ok || node.root != n.root {
return false
}
n.curr = node.curr
n.attr = node.attr
return true
}
func createNode(data string, typ NodeType) *TNode {
return &TNode{Data: data, Type: typ, Attr: make([]Attribute, 0)}
}
func (n *TNode) createChildNode(data string, typ NodeType) *TNode {
m := createNode(data, typ)
m.Parent = n
if n.FirstChild == nil {
n.FirstChild = m
} else {
n.LastChild.NextSibling = m
m.PrevSibling = n.LastChild
}
n.LastChild = m
return m
}
func (n *TNode) appendNode(data string, typ NodeType) *TNode {
m := createNode(data, typ)
m.Parent = n.Parent
n.NextSibling = m
m.PrevSibling = n
if n.Parent != nil {
n.Parent.LastChild = m
}
return m
}
func (n *TNode) addAttribute(k, v string) {
n.Attr = append(n.Attr, Attribute{k, v})
}
func (n *TNode) getAttribute(key string) string {
for i := 0; i < len(n.Attr); i++ {
if n.Attr[i].Key == key {
return n.Attr[i].Value
}
}
return ""
}
func createElementAttr(line int, name string, attrs map[string]string, children ...*TNode) *TNode {
el := createElement(line, name, children...)
for k, v := range attrs {
el.addAttribute(k, v)
}
return el
}
func createElement(line int, name string, children ...*TNode) *TNode {
nodeType := ElementNode
if name == "" {
nodeType = RootNode
}
n := createNode(name, nodeType)
n.lines = line
for _, c := range children {
c.Parent = n
c.PrevSibling = n.LastChild
if c.PrevSibling == nil {
n.FirstChild = c
} else {
c.PrevSibling.NextSibling = c
}
n.LastChild = c
}
return n
}
func createBookExample() *TNode {
/*
<?xml version="1.0" encoding="UTF-8"?>
<bookstore>
<book category="cooking">
<title lang="en">Everyday Italian</title>
<author>Giada De Laurentiis</author>
<year>2005</year>
<price>30.00</price>
</book>
<book category="children">
<title lang="en">Harry Potter</title>
<author>J K. Rowling</author>
<year>2005</year>
<price>29.99</price>
</book>
<book category="web">
<title lang="en">XQuery Kick Start</title>
<author>James McGovern</author>
<author>Per Bothner</author>
<author>Kurt Cagle</author>
<author>James Linn</author>
<author>Vaidyanathan Nagarajan</author>
<year>2003</year>
<price>49.99</price>
</book>
<book category="web">
<title lang="en">Learning XML</title>
<author>Erik T. Ray</author>
<year>2003</year>
<price>39.95</price>
</book>
</bookstore>
*/
type Element struct {
Data string
Attributes map[string]string
}
books := []struct {
category string
title Element
year int
price float64
authors []string
}{
{
category: "cooking",
title: Element{"Everyday Italian", map[string]string{"lang": "en"}},
year: 2005,
price: 30.00,
authors: []string{"Giada De Laurentiis"},
},
{
category: "children",
title: Element{"Harry Potter", map[string]string{"lang": "en"}},
year: 2005,
price: 29.99,
authors: []string{"J K. Rowling"},
},
{
category: "web",
title: Element{"XQuery Kick Start", map[string]string{"lang": "en"}},
year: 2003,
price: 49.99,
authors: []string{"James McGovern", "Per Bothner", "Kurt Cagle", "James Linn", "Vaidyanathan Nagarajan"},
},
{
category: "web",
title: Element{"Learning XML", map[string]string{"lang": "en"}},
year: 2003,
price: 39.95,
authors: []string{"Erik T. Ray"},
},
}
var lines = 0
doc := createNode("", RootNode)
lines++
bookstore := doc.createChildNode("bookstore", ElementNode)
lines++
bookstore.lines = lines
for i := 0; i < len(books); i++ {
v := books[i]
lines++
book := bookstore.createChildNode("book", ElementNode)
book.lines = lines
lines++
book.addAttribute("category", v.category)
// title
title := book.createChildNode("title", ElementNode)
title.lines = lines
lines++
for k, v := range v.title.Attributes {
title.addAttribute(k, v)
}
title.createChildNode(v.title.Data, TextNode)
// authors
for j := 0; j < len(v.authors); j++ {
author := book.createChildNode("author", ElementNode)
author.lines = lines
lines++
author.createChildNode(v.authors[j], TextNode)
}
// year
year := book.createChildNode("year", ElementNode)
year.lines = lines
lines++
year.createChildNode(fmt.Sprintf("%d", v.year), TextNode)
// price
price := book.createChildNode("price", ElementNode)
price.lines = lines
lines++
price.createChildNode(fmt.Sprintf("%.2f", v.price), TextNode)
}
return doc
}
// The example document from https://way2tutorial.com/xml/xpath-node-test.php
func createEmployeeExample() *TNode {
/*
<?xml version="1.0" standalone="yes"?>
<empinfo>
<employee id="1">
<name>Opal Kole</name>
<designation discipline="web" experience="3 year">Senior Engineer</designation>
<email>OpalKole@myemail.com</email>
</employee>
<employee id="2">
<name from="CA">Max Miller</name>
<designation discipline="DBA" experience="2 year">DBA Engineer</designation>
<email>maxmiller@email.com</email>
</employee>
<employee id="3">
<name>Beccaa Moss</name>
<designation discipline="appdev">Application Developer</designation>
<email>beccaamoss@email.com</email>
</employee>
</empinfo>
*/
type Element struct {
Data string
Attributes map[string]string
}
var lines = 0
doc := createNode("", RootNode)
lines++ // 1
empinfo := doc.createChildNode("empinfo", ElementNode)
lines++
empinfo.lines = lines
var employees = []struct {
name Element
designation Element
email Element
}{
{
name: Element{Data: "Opal Kole"},
designation: Element{Data: "Senior Engineer", Attributes: map[string]string{
"discipline": "web",
"experience": "3 year",
}},
email: Element{Data: "OpalKole@myemail.com"},
},
{
name: Element{Data: "Max Miller", Attributes: map[string]string{"from": "CA"}},
designation: Element{Data: "DBA Engineer", Attributes: map[string]string{
"discipline": "DBA",
"experience": "2 year",
}},
email: Element{Data: "maxmiller@email.com"},
},
{
name: Element{Data: "Beccaa Moss"},
designation: Element{Data: "Application Developer", Attributes: map[string]string{
"discipline": "appdev",
}},
email: Element{Data: "beccaamoss@email.com"},
},
}
for i := 0; i < len(employees); i++ {
v := employees[i]
lines++
// employee
employee := empinfo.createChildNode("employee", ElementNode)
employee.addAttribute("id", fmt.Sprintf("%d", i+1))
employee.lines = lines
lines++
// name
name := employee.createChildNode("name", ElementNode)
name.createChildNode(v.name.Data, TextNode)
for k, n := range v.name.Attributes {
name.addAttribute(k, n)
}
name.lines = lines
lines++
// designation
designation := employee.createChildNode("designation", ElementNode)
designation.createChildNode(v.designation.Data, TextNode)
for k, n := range v.designation.Attributes {
designation.addAttribute(k, n)
}
designation.lines = lines
lines++
// email
email := employee.createChildNode("email", ElementNode)
email.createChildNode(v.email.Data, TextNode)
for k, n := range v.email.Attributes {
email.addAttribute(k, n)
}
email.lines = lines
// skiping closed tag
lines++
}
return doc
}
func createHtmlExample() *TNode {
/*
<html lang="en">
<head>
<title>My page</title>
<meta name="language" content="en" />
</head>
<body>
<h2>Welcome to my page</h2>
<ul>
<li>
<a href="/">Home</a>
</li>
<li>
<a href="/about">About</a>
</li>
<li>
<a href="/account">Login</a>
</li>
<li></li>
</ul>
<p>This is the first paragraph.</p>
<!-- this is the end -->
</body>
</html>
*/
lines := 0
doc := createNode("", RootNode)
lines++
xhtml := doc.createChildNode("html", ElementNode)
xhtml.lines = lines
xhtml.addAttribute("lang", "en")
lines++
// head container
head := xhtml.createChildNode("head", ElementNode)
head.lines = lines
lines++
title := head.createChildNode("title", ElementNode)
title.lines = lines
title.createChildNode("My page", TextNode)
lines++
meta := head.createChildNode("meta", ElementNode)
meta.lines = lines
meta.addAttribute("name", "language")
meta.addAttribute("content", "en")
// skip the head
lines++
lines++
body := xhtml.createChildNode("body", ElementNode)
body.lines = lines
lines++
h2 := body.createChildNode("h2", ElementNode)
h2.lines = lines
h2.createChildNode("Welcome to my page", TextNode)
lines++
links := []struct {
text string
href string
}{
{text: "Home", href: "/"},