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Curly braces in a conditional with a regex throws parsing error #29

litzinger opened this Issue Nov 29, 2018 · 2 comments


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litzinger commented Nov 29, 2018

Description of the problem
Using curly braces in a regex comparison in a conditional causes a parsing error. I have a situation where I need to detect if a segment is a valid ISO code, e.g. en-us, or ca-fr. It appears as if the conditional parser is choking on the curly braces in the regex, b/c as soon as they are removed the error message goes away, but of course the regex isn't matching what I need it to match.

How To Reproduce
Steps to reproduce the behavior:
Add the following to a template file, and it'll yield the error message below.
{if segment_2 ~ "/\S{2}-\S{2}/"}{/if}

Error Messages

You have an invalid conditional in your template. Please review your conditionals for an unclosed string, invalid operators, a missing }, or a missing {/if}.

Environment Details:

  • Version: 4.3.6
  • PHP Version: 7.1
  • MySQL Version: 5.7
  • OS: Linux (via Vagrant)
  • Web Server: Apache

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derekjones commented Nov 30, 2018

I haven't confirmed this report yet, but as a workaround you should be able to use '/\S\S-\S\S/'.


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litzinger commented Nov 30, 2018

I actually converted to using Resource Router as it was easier to handle 4 url variations the same template, and keep this sort of logic out of the template file.

@kevincupp kevincupp closed this in 7b461c8 Dec 6, 2018

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