magic.lambda.xml 14.5.7

Parsing XML from Hyperlambda

This project provides XML helper slots for Hyperlambda. More specifically, it provides the following slots.

• [xml2lambda] - Creates a lambda object out of an XML input string
• [lambda2xml] - Creates an XML string from a lambda object

Usage

.xml:@"<CATALOG>
  <PLANT>
    <COMMON>Bloodroot</COMMON>
    <BOTANICAL>Sanguinaria canadensis</BOTANICAL>
    <ZONE>4</ZONE>
    <LIGHT>Mostly Shady</LIGHT>
    <PRICE>$2.44</PRICE>
    <AVAILABILITY>031599</AVAILABILITY>
  </PLANT>
</CATALOG>
"
xml2lambda:x:@.xml

The above results in something resembling the following.

xml2lambda
   CATALOG
      PLANT
         COMMON
            #text:Bloodroot
         BOTANICAL
            #text:Sanguinaria canadensis
         ZONE
            #text:4
         LIGHT
            #text:Mostly Shady
         PRICE
            #text:$2.44
         AVAILABILITY
            #text:031599

To convert the above lambda object back to its original XML content, you can use something such as follows.

lambda2xml:x:@xml2lambda/*

Attributes starts out with the @ character, children nodes does not - While text content inside of elements will be named #text. This implies you'll need to use escaped expression iterators when traversing the resulting node lambda object. For instance, to retrieve the above PRICE element's inner text, you could use something such as the following.

get-value:x:@xml2lambda/**/PRICE/*/\#text

Project website

The source code for this repository can be found at github.com/polterguy/magic.lambda.xml, and you can provide feedback, provide bug reports, etc at the same place.

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