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www.bennadel.com
| | www.regular-expressions.info
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| | In a regular expression, parentheses can be used to group regex tokens together and for creating backreferences. Backreferences allow you to reuse part of the regex match in the regex, or in the replacement text.
| | twomorecents.org
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| | [AI summary] This text is a detailed exploration of the development and implementation of a regular expression engine, drawing from the works of several key figures in the field. It covers various features and techniques, including capturing groups, backreferences, numeric ranges, and the use of threads to simulate backtracking. The author also discusses the inspiration from Russ Cox, Rob Pike, and Ken Thompson, and their contributions to the field of regular expressions and computing.
| | appcodelabs.com
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| | Have you ever tried to learn regular expressions but failed? This article explains the 9 essential patterns you should learn to get started with regex.
| | www.cplusplus.com
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| [AI summary] The text provides an overview of regular expression syntax and its special characters, quantifiers, groups, assertions, and character classes, primarily focusing on ECMAScript syntax standards.