These sections introduce the concept of regular expressions and explain how to create and use them in JScript.
While each topic stands on its own, it is recommended that you peruse these topics sequentially to develop the best understanding of the material. Many topics rely upon the understanding of a feature or concept that was introduced in a previous topic in the sequence.
Distinguishes ordinary characters from metacharacters and illustrates how to combine single-character regular expressions to create larger expressions.
Indicates how to fix a regular expression to either the beginning of a line or the end of a line and how to create regular expressions that occur within a word, at the beginning of a word, or at the end of a word.
Illustrates how alternation uses the '|' character to allow a choice between two or more alternatives and how grouping works in conjunction with alternation to further refine the result.
Explains how to create regular expressions that can access part of a stored matched pattern without recreating the regular expression that found the matched pattern.
Clarifies how pattern-matching notation of regular expressions allows developers to quickly parse large amounts of text to find specific character patterns; to extract, edit, replace, or delete text substrings; or to add the extracted strings to a collection in order to generate a report.