Ruby Regex Match Multiple variable from a single string

Question

Fairly new to ruby. I'm trying to parse a string and assign several variables with a regex.

I've consulted the docs, Googled a bit, and pretty sure that the following should work.

@operating_system, @os_update, @os_arch = @version_line[0].match(
        /(Solaris \d+)\s+\d+\/\d+\ss\d+[sx]_u(\d+)\wos_\d+\w+\s+(\w+)$/
        )

Where @version_line = [" Oracle Solaris 10 9/10 s10x_u9wos_14a X86\n"]

But all that happens is my first variable, @operating_system is assigned Solaris 10 9/10 s10x_u9wos_14a X86

Am I trying to do it the wrong way?

Thomas · Accepted Answer · 2012-07-06 22:01:13Z

1

Actually, match returns a MatchData object, which happens to have a to_s method that produces the string you see.

To get all matched capture groups as an array, use the captures method:

@operating_system, @os_update, @os_arch = @version_line[0].match(
        /(Solaris \d+)\s+\d+\/\d+\ss\d+[sx]_u(\d+)\wos_\d+\w+\s+(\w+)$/
        ).captures

edited Jul 6, 2012 at 22:01

answered Jul 6, 2012 at 11:52

Thomas

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4 Comments

Patrick Oscity Over a year ago

strange… String#match works for me. It's in the docs for 1.8.7 as well as 1.9.1 and 1.9.3

Sirch Over a year ago

Brilliant! Thanks Thomas I totally missed the fact that match returned MatchData object!

Sirch Over a year ago

You were right about @version_line = ["..."], I'll edit my question.

Thomas Over a year ago

Yeah, I have it too. Just not on Array ;)

burning_LEGION · Accepted Answer · 2012-07-06 11:52:41Z

0

use this regex (Solaris \d+)\s+\d+/\d+\s\w+\s\w+

answered Jul 6, 2012 at 11:52

burning_LEGION

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