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Regular Expression Simplificator

Tool to simplify a regex. Regexp simplificator (or regular expression) shortens the string of characters to search for patterns in a text.

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Regular Expression Simplificator -

Tag(s) : Data processing

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Regular Expression Simplificator

Regular Expressions Simplification


Tool to simplify a regex. Regexp simplificator (or regular expression) shortens the string of characters to search for patterns in a text.

Answers to Questions

How does the regexp minification works ?

The regular expressions simplifier (beta version) replaces useless elements in a regular expression in order to minimize it or make it more readable by analyzing patterns component of the regex string.

Example: x{0,} is equivalent to x* through simplification

Example: [aaabbb] is equivalent to [ab]

Example: (ab|ac) can also be written a[bc]

Some regular expressions can not be simplified. In this case, the program will return the same string.

The program/optimizer is in beta test, and does not work all the times! More, some parentheses, potentially useful for capturing can be deleted and escape characters can be ignored.

How to reduce the size of a regexp?

There are shorthand character classes and metacharacters:

abbreviationequivalent
\d[0-9]
\w[A-Za-z0-9_]
\s[ \t\r\n\f]
\D[^\d]
\W[^\w]
\S[^\s]

The letter d for digit (digit), w for word (letter / alphanumeric character) and s for space (spacing), uppercase letters represent the negation of the set

Example: D for a character that is not a number, etc.

Source code

dCode retains ownership of the online 'Regular Expression Simplificator' tool source code. Except explicit open source licence (indicated CC / Creative Commons / free), any algorithm, applet or snippet (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or any function (convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (PHP, Java, C#, Python, Javascript, Matlab, etc.) no data, script or API access will be for free, same for Regular Expression Simplificator download for offline use on PC, tablet, iPhone or Android !

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Questions / Comments

Thanks to your feedback and relevant comments, dCode has developped the best Regular Expression Simplificator tool, so feel free to write! Thank you !


Source : https://www.dcode.fr/regular-expression-simplificator
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