Expression, which is under the title, regex or regexp is also called in Computer Science, the meaning of a matching string in the text is, that such as special characters, words and patterns of characters. A Baqa phrase is written in ordinary language that can be used by a Baqa phrase processor، or a program that acts as a translator generator or text checker and detects parts of by specification.

these samples can capabilities are limited regular expressions can do to show:

the sequence of characters car in any text, such as car, cartoon, or bicarbonate
The Word car when used individually
The Word car when before blue or red is
A characters $, after which one or more digits to come, and then optionally a slash come after the slash exactly two digits, add the have (such as $10 or $245٫99)
words can be much more complex than this example, so that they could.