XPath helper questions about handlebars-rust

[sunng87]

[Object] means the value is a json object.

For now el is a json object containing the parameters of the xml element, so @el.name is a string

I think you can simplify the helper by converting matches in to a json array (because there can be multiple matches) and use each within the block, so you don't have to reimplement each:

{{#xpath xmlvar "//el"}}
  {{#each @el}}
    {{name}}
  {{/each}}
{{/xpath}}

[hhalex]

Yes this works totally!

Final solution:
input xml

<node>
    <el name="v1" />
    <el name="v2" />
    <el name="v3" />
</node>

handlebars template

<node>
  {{#xpath body.text "//el[@name=\"v1\"]"}}
    <len>{{len @results}}</len>
    <results>
    {{#each @results}}
      <n>{{name}}</n>
    {{/each}}
    </results>
  {{/xpath}}
</node>

xml output

<node>
  <len>1</len>
  <results>
    <n>v1</n>
  </results>
</node>

[sunng87]

May I know the data structure of el in

  {{@el.name}}

I think you can make xpath a block helper and use it like:

{{#xpath xmlvar "//el"}}
  {{@el.name}}
{{/xpath}}

In the helper you evaluate //el against value of xmlvar and convert its result to json , the put into local variable el.

[hhalex]

For now el is a json object containing the parameters of the xml element, so @el.name is a string

<root>
  <el name="el1" />
  <el name="el2" />
  <el name="el3" />
</root>

Here is my first try that does not work totally (@el.name produces [Object] when called from the template)

https://gist.github.com/hhalex/aac4717c74b4de575602061f185b12e9

I copied the each helper file, imported a few local functions of handlebars to make it compile it.