25 lines
		
	
	
		
			538 B
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			25 lines
		
	
	
		
			538 B
		
	
	
	
		
			Go
		
	
	
	
	
	
package extract
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import (
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	"errors"
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	"github.com/PuerkitoBio/goquery"
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)
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var ErrAttrNotExists = errors.New("attribute not exist")
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// Attr returns HTML attribute value of provided selector
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type Attr struct {
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	Name     string
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	Selector string
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	Attr     string
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}
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// Extract returns HTML attribute value of provided selector
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func (e Attr) Extract(sel *goquery.Selection) (interface{}, error) {
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	attr, exists := sel.Find(e.Selector).Attr(e.Attr)
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	if !exists {
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		return nil, ErrAttrNotExists
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	}
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	return map[string]string{e.Name: attr}, nil
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}
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