Extracting a pattern that appers multiple times in a string using ruby regex

Question

I want to extract patterns that appert multiple times in a string. For example,getting two an array lay of two digit integers from a string

wahoaet56oihaioet67jlkiwoeah67ladohwae45lkaowearho56

I thought result="wahoaet56oihaioet67jlkiwoeah67ladohwae45lkaowearho56".match(/([0-9]{2})/) should give a MatchData object whose captures method should give me an array of matched patters, but it seems there is something I am missing. It only give back the first find. Even using $1,$2,$3 etc doesn't work. I am using ruby

How should I do this?

I wanted the whole array [56,67,67,45,56]. I can understand why you asked this. thanks! — serengeti12
– serengeti12, Commented Feb 16, 2012 at 21:06

ohaal · Accepted Answer · 2012-02-16 20:31:14Z

11

string.scan(/regex/)

should do it

answered Feb 16, 2012 at 20:31

ohaal

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steenslag · Accepted Answer · 2012-02-16 20:34:30Z

6

scan does what you want:

str = "wahoaet56oihaioet67jlkiwoeah67ladohwae45lkaowearho56"
p str.scan(/\d+/) #=> ["56", "67", "67", "45", "56"]

answered Feb 16, 2012 at 20:34

steenslag

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