Ruby Regular Expression Or Operator

Rubular is a ruby based regular expression editor.

Ruby regular expression or operator. It s a handy way to test regular expressions as you write them. Does ruby regular expression have a not match operator like in perl. General delimited regular expression. I just want to know whether ruby regex has a not match operator just like in perl.

A regular expression is a special sequence of characters that helps you match or find other strings or sets of strings using a specialized syntax held in a pattern. Or you can try an example. A regular expression literal is a pattern between slashes or between arbitrary delimiters followed by r as follows. I feel it s inconvenient to use xxx or xxxx because you cannot use regex patterns in the xxx part.

It first evaluates an expression for a true or false value and then executes one of the two given statements depending upon the result of the evaluation. There is one more operator called ternary operator. Think about an email address with a ruby regex you can define what a valid email address looks like. Mi hi mike 3 hi mike mi 3 mike ruby nil you can place the string regex on either side of the operator as you can see above.

In other words your program will be able to tell. The operator matches the regular expression against a string and it returns either the offset of the match from the string if it is found otherwise nil. Regex quick reference abc a single character of. The conditional operator has this syntax.

Make permalink clear fields. Viewed 43k times 92. Ruby regular expressions ruby regex for short help you find specific patterns inside strings with the intent of extracting data for further processing two common use cases for regular expressions include validation parsing.