c# - Using XPath to select attributes with wildcards -

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i got html need parse, , i'm using c# , html agility pack library selection of nodes. html either: 

<input data-translate-atrr-placeholder="forgot_password.form.email">

or : 

<h1 data-translate="forgot_password.form.email"></h1>

where data-translate-attr-**** new pattern of attributes need find

i use :

//[contains(@??,'data-translate-attr')]

but unfortunately, search value inside attribute. how attribute itself, wildcard?

update : @mathias muller

htmlagilitypack.htmldocument htmldoc     // old code (returns nodes) var nodes = htmldoc.documentnode.selectnodes("//@data-translate");   // these suggestions return no nodes using same data var nodes = htmldoc.documentnode.selectnodes("//@*[contains(name(),'data-translate')]");   var nodes = htmldoc.documentnode.selectnodes("//@*[starts-with(name(),'data-translate')]");

update 2

this appears html agility pack issue more xpath issue, used chrome test xpath expressions , of following worked in chrome not in html agility pack :

//@*[contains(local-name(),'data-translate')] //@*[starts-with(name(),'data-translate')] //attribute::*[starts-with(local-name(.),'data-translate')]

my solution

i ended doing things old fashioned way...

var nodes = htmldoc.documentnode.selectnodes("//@*");  if (nodes != null) {     foreach (htmlnode node in nodes) {         if (node.hasattributes) {             foreach (htmlattribute attr in node.attributes) {                 if (attr.name.startswith("data-translate")) {                     // code in here handle translation node                 }             }         }     } }

use xpath functions contains() or starts-with(). need xpath expression like

//@*[contains(name(),'data-translate')]

or perhaps

//@*[starts-with(name(),'data-translate')]

which retrieves attribute nodes. above, @* attribute wildcard looking for.


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