ruby regex not matching a string if "+" character in source -


i have string contains international phone number e.g. +44 9383 33333 bizzarely when attempt regex match (note regex correctly 'escaped') regex match fails

e.g. 

 "001144 9383 33333".match(/(001144|004|0|\\+44)/) # works   "+44 9383 33333".match(/(001144|004|0|\\+44)/) # not work

i've tried escaping input string e.g. +, \+ etc. etc no avail.

i must doing stupid here!?

you've got double backslash, telling regex parser literal backslash. since it's followed + regex parser looking 1 or more backslashes. try \+ (so whole thing should be: /(001144|004|0|\+44)/


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