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zachedwards's avatar
zachedwards
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Oct 11, 2019

Regex assert position at beginning of string

I am trying to get the 2 matches found at the beginning of the string. According to this page, you can use \A to match beginning of the line. The re2 engine syntax also permits ^ to assert position t...
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CliveWatson's avatar
CliveWatson
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Oct 13, 2019

zachedwards 

 

How about?

 

print Id="<Param>a</Param><Param>b</Param><Param>c</Param><Param>d</Param><Param>e</Param>"
| extend rawExtract = extract_all(@"^<Param>([^<]*)</Param><Param>([^<]*)</Param>", dynamic([1,2]), Id) 
| extend returnFirst = rawExtract[0]
  • zachedwards's avatar
    zachedwards
    Icon for Microsoft rankMicrosoft
    Oct 24, 2019
    Yes, although that works in this scenario, it doesn't answer why the ^ and \A are not honored in these regex patterns 😞

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