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I'm looking for a way to perform a regex match on a string in Ruby and have it short-circuit on the first match.
The string I'm processing is long and from what it looks like the standard way (match method) would process the whole thing, collect each match, and return a MatchData object containing all matches.
match = string.match(/regex/)[0].to_s 
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Ruby | Regexp match() function Return: regular expression with the string after matching it.
=~ is Ruby's pattern-matching operator. It matches a regular expression on the left to a string on the right. If a match is found, the index of first match in string is returned. If the string cannot be found, nil will be returned.
The Match(String, String) method returns the first substring that matches a regular expression pattern in an input string. For information about the language elements used to build a regular expression pattern, see Regular Expression Language - Quick Reference.
Rubular is a Ruby-based regular expression editor. It's a handy way to test regular expressions as you write them. To start, enter a regular expression and a test string.
You could try String#[] (as in variableName[/regular expression/]).
This is an example output from IRB:
names = "erik kalle johan anders erik kalle johan anders" # => "erik kalle johan anders erik kalle johan anders" names[/kalle/] # => "kalle" You can use []: (which is like match)
"[email protected]"[/\+([^@]+)/, 1] # matches capture group 1, i.e. what is inside () # => "account2" "[email protected]"[/\+([^@]+)/] # matches capture group 0, i.e. the whole match # => "+account2" If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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