Regex find all XML values based on subvalue

Question

I have the following XML code:

<quantity1 value="foo" name="bar">
   <subquantity duration="2">
        <parameter unit="meters" />
   </subquantity>
</quantity1>

I want to export all names for further analysis in another document, but only if they have a certain subvalue. For example, how can I use regex to find all names based on if unit="meters"?

Bonus points if you can instruct how to do this in Notepad++. Open to other suggestions/SO posts as well.

Never use RegEx to query XML. It's unsafe by design. – zx485 Sep 02 '18 at 01:07 — zx485, Sep 02 '18 at 01:07
Use XSLT instead to pull out what you need. – Shawn Sep 02 '18 at 01:41 — Shawn, Sep 02 '18 at 01:41

score 1 · Accepted Answer · answered Sep 02 '18 at 01:43

1

Regular expressions are wrong for parsing XML.

Use XPath in XSLT or a scripting language or xmlstarlet instead.

Examples:

//quantity1[subquantity/parameter/@unit="meters"]/@name
//*[*/*/@unit="meters"]/@name
//*[.//@unit="meters"]/@name

answered Sep 02 '18 at 01:43

kjhughes

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Regex find all XML values based on subvalue

1 Answers1