Matches unfilled placeholders and (nested) placeholder blocks

/[123]+(123)*2/ Input: 1,2,3,4,5,6,7,8,9,0,10,11,12,13,14,15,16 Find: 12

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Visa, MasterCard, American Express, Diners Club, Discover, JCB

Working on this regex so that I can use it to parse regular expressions and get the group info from them

words

Necessary because of Bug in Web-Interface

Takes a JSON string and captures interesting information in the named capturing groups: (o: last object, a: last array, s: last string, n: last number, c: last comma before optional whitespace, d: same as c, but with a colon instead of a comma, v: last value)