Ruby Regex Syntax

Sometimes however they are used to interpret ambiguous statements.

Ruby regex syntax. A regular expression is also spelled as regexp which holds a regular expression used to match a pattern against strings. You have seen a simple ruby program now let us see a few basic concepts related to ruby syntax. Other classes may have different. In other words your program will be able to tell.

The example column gives a valid regular expression that uses the element and the sample match column presents a text string. In ruby a pattern is written between forward slash characters. The next column legend explains what the element means or encodes in the regex syntax. When one operand is a regular expression and the other is a string then the regular expression is used as a pattern to match against the string.

They describe the content of a string. Is ruby s basic pattern matching operator. 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. Whitespace in ruby program.

Think about an email address with a ruby regex you can define what a valid email address looks like. The next two columns work hand in hand. This operator is equivalently defined by regexp and string so the order of string and regexp do not matter. A regular expression literal is a pattern between slashes or between arbitrary delimiters followed by r as follows.

Ruby regular expression is more similar to perl regular expression. 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. Syntax pattern pattern im option can be specified r usr local.