How to extract all substrings with regex pattern matching

Syed Murtza

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Jul 9, 2016, 9:14:57 PM7/9/16

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I want to extract a list of all tags which are wrapped in {{ }} from following string and work on them i.e check db if they exist or not and than replace them as markdown link . i didnt find any String.scan function which returns substrings as a list. if you know how to do it than please let me know.

string

Lorem ipsum {{dolor}} sit {{amet}}, consectetur adipisicing {{elit}},

Thanks in advance for your effort and time :)

Syed Murtza

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Jul 9, 2016, 9:19:40 PM7/9/16

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i can replace them with

String.replace(string, ~r/\{\{.+?\}\}/, "new substring")

but this doesnt help me because i can't work on substrings i.e check the db.

Theron Boerner

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Jul 9, 2016, 9:46:33 PM7/9/16

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Regex.scan/3

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