Regular expressions: Difference between revisions
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A regular expression, regex (sometimes called a rational expression) is, in theoretical computer science and formal language theory, a sequence of characters that define a search pattern. Usually this pattern is then used by string searching algorithms for "find" or "find and replace" operations on strings.<ref>https://en.wikipedia.org/wiki/Regular_expression</ref> | A regular expression, regex (sometimes called a rational expression) is, in theoretical computer science and formal language theory, a sequence of characters that define a search pattern. Usually this pattern is then used by string searching algorithms for "find" or "find and replace" operations on strings.<ref>https://en.wikipedia.org/wiki/Regular_expression</ref> | ||
== regex cheat sheet == | |||
[[File:Regex Cheat Sheet.png| | |||
[[File:Regex Cheat Sheet.png|400px]] | |||
Revision as of 08:08, 11 May 2017
Computational thinking, problem-solving and programming[1]
A regular expression, regex (sometimes called a rational expression) is, in theoretical computer science and formal language theory, a sequence of characters that define a search pattern. Usually this pattern is then used by string searching algorithms for "find" or "find and replace" operations on strings.[2]
regex cheat sheet[edit]
