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The API is now solely located under the github.com/ChrisTrenkamp/xsel package, and added convenience functions for ContextSettings.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,140 @@ | ||
| package xsel_test | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "fmt" | ||
|
|
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| "github.com/ChrisTrenkamp/xsel" | ||
| ) | ||
|
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| func ExampleExec() { | ||
| xml := ` | ||
| <root> | ||
| <a>This is an XML node.</a> | ||
| </root> | ||
| ` | ||
|
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| xpath := xsel.MustBuildExpr(`/root/a`) | ||
| cursor, _ := xsel.ReadXml(bytes.NewBufferString(xml)) | ||
| result, _ := xsel.Exec(cursor, &xpath) | ||
|
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| fmt.Println(result) | ||
| // Output: This is an XML node. | ||
| } | ||
|
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| func ExampleWithNS() { | ||
| xml := ` | ||
| <root xmlns="http://some.namespace.com"> | ||
| <a xmlns="http://some.namespace.com">This is an XML node with a namespace prefix.</a> | ||
| </root> | ||
| ` | ||
|
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| xpath := xsel.MustBuildExpr(`/ns:root/ns:a`) | ||
| cursor, _ := xsel.ReadXml(bytes.NewBufferString(xml)) | ||
| result, _ := xsel.Exec(cursor, &xpath, xsel.WithNS("ns", "http://some.namespace.com")) | ||
|
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| fmt.Println(result) | ||
| // Output: This is an XML node with a namespace prefix. | ||
| } | ||
|
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| func ExampleWithVariableNS() { | ||
| xml := ` | ||
| <root> | ||
| <node>2.50</node> | ||
| <node>3.14</node> | ||
| <node>0.30</node> | ||
| </root> | ||
| ` | ||
|
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| const NS = "http://some.namespace.com" | ||
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| xpath := xsel.MustBuildExpr(`//node()[. = $ns:mynum]`) | ||
| cursor, _ := xsel.ReadXml(bytes.NewBufferString(xml)) | ||
| result, _ := xsel.Exec(cursor, &xpath, xsel.WithNS("ns", NS), xsel.WithVariableNS(NS, "mynum", xsel.Number(3.14))) | ||
|
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| fmt.Println(result) | ||
| // Output: 3.14 | ||
| } | ||
|
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| func ExampleWithFunction() { | ||
| xml := ` | ||
| <root> | ||
| <a>This is an element.</a> | ||
| <!-- This is a comment. --> | ||
| </root> | ||
| ` | ||
|
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| isComment := func(context xsel.Context, args ...xsel.Result) (xsel.Result, error) { | ||
| nodeSet, isNodeSet := context.Result().(xsel.NodeSet) | ||
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| if !isNodeSet || len(nodeSet) == 0 { | ||
| return xsel.Bool(false), nil | ||
| } | ||
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| _, isComment := nodeSet[0].Node().(xsel.Comment) | ||
| return xsel.Bool(isComment), nil | ||
| } | ||
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| xpath := xsel.MustBuildExpr(`//node()[is-comment()]`) | ||
| cursor, _ := xsel.ReadXml(bytes.NewBufferString(xml)) | ||
| result, _ := xsel.Exec(cursor, &xpath, xsel.WithFunction("is-comment", isComment)) | ||
|
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| fmt.Println(result) | ||
| // Output: This is a comment. | ||
| } | ||
|
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| func ExampleUnmarshal() { | ||
| xml := ` | ||
| <Root xmlns="http://www.adventure-works.com"> | ||
| <Customers> | ||
| <Customer CustomerID="GREAL"> | ||
| <CompanyName>Great Lakes Food Market</CompanyName> | ||
| <ContactName>Howard Snyder</ContactName> | ||
| <ContactTitle>Marketing Manager</ContactTitle> | ||
| <FullAddress> | ||
| <Address>2732 Baker Blvd.</Address> | ||
| <City>Eugene</City> | ||
| <Region>OR</Region> | ||
| </FullAddress> | ||
| </Customer> | ||
| <Customer CustomerID="HUNGC"> | ||
| <CompanyName>Hungry Coyote Import Store</CompanyName> | ||
| <ContactName>Yoshi Latimer</ContactName> | ||
| <FullAddress> | ||
| <Address>City Center Plaza 516 Main St.</Address> | ||
| <City>Walla Walla</City> | ||
| <Region>WA</Region> | ||
| </FullAddress> | ||
| </Customer> | ||
| </Customers> | ||
| </Root> | ||
| ` | ||
|
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| type Address struct { | ||
| Address string `xsel:"NS:Address"` | ||
| City string `xsel:"NS:City"` | ||
| Region string `xsel:"NS:Region"` | ||
| } | ||
|
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| type Customer struct { | ||
| Id string `xsel:"@CustomerID"` | ||
| Name string `xsel:"NS:CompanyName"` | ||
| ContactName string `xsel:"NS:ContactName"` | ||
| Address Address `xsel:"NS:FullAddress"` | ||
| } | ||
|
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| type Customers struct { | ||
| Customers []Customer `xsel:"NS:Customers/NS:Customer"` | ||
| } | ||
|
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| contextSettings := xsel.WithNS("NS", "http://www.adventure-works.com") | ||
| xpath := xsel.MustBuildExpr(`/NS:Root`) | ||
| cursor, _ := xsel.ReadXml(bytes.NewBufferString(xml)) | ||
| result, _ := xsel.Exec(cursor, &xpath, contextSettings) | ||
|
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| customers := Customers{} | ||
| _ = xsel.Unmarshal(result, &customers, contextSettings) // Remember to check for errors | ||
|
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| fmt.Printf("%+v\n", customers) | ||
| // Output: {Customers:[{Id:GREAL Name:Great Lakes Food Market ContactName:Howard Snyder Address:{Address:2732 Baker Blvd. City:Eugene Region:OR}} {Id:HUNGC Name:Hungry Coyote Import Store ContactName:Yoshi Latimer Address:{Address:City Center Plaza 516 Main St. City:Walla Walla Region:WA}}]} | ||
| } |
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