CODEWITHSUNDEEP
regex
Sarath
Sarath

Reputation: 1496

Recursive regular expression

If there is a text like ${placeholder1.${placeholder2}}, is it possible to have a regular expression to match the text recursively like ${placeholder1.${placeholder2}} ${placeholder2}

Upvotes: 0

Views: 564

Answers (1)

Rob Raisch
Rob Raisch

Reputation: 17357

No, not using a standard regular expression. This is why it is strongly advised not to use a regex to parse HTML. Perl, PCRE and Ruby support an extended form that will instruct the regex to return to the beginning of the pattern and reevaluate the match. See Regular Expression Recursion for more.

In the general case, I'd write a quick parser to handle this use case using a library like PegJS.

Upvotes: 0

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