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REGEX

Comments


Comments

Regular expressions can be complicated and cryptic to say the least. To help alleviate this, most regular expression engines support comments to be inserted within a regular expression.

To insert comments into regular expressions, use the following syntax:

(?#comment)
Parameter Description
comment Specifies any text desired as long as it does not contain a ')'

When processing comments, the regex engine ignores everything after the (?# until it finds the first closing parenthesis ')'.

Examples

[a-z](?#Only match lower case)

Supported by:
.NET, PCRE, Perl, Python, Ruby



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