Regular Expressions: Difference between revisions
(Created page with "Regular expressions are used for matching text. ==Useful Regular Expressions== ===Floating Point Number=== [https://www.regular-expressions.info/floatingpoint.html Referenc...") |
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==Useful Regular Expressions== | ==Useful Regular Expressions== | ||
Mostly copied from [https://rgxdb.com/ Regex DB]. | |||
===Floating Point Number=== | ===Floating Point Number=== | ||
Without matching scientific notation (e.g. 1.5e-6). | |||
[https://www.regular-expressions.info/floatingpoint.html Reference] | [https://www.regular-expressions.info/floatingpoint.html Reference] | ||
<syntaxhighlight lang="ragel"> | <syntaxhighlight lang="ragel"> | ||
[-+]?[0-9]*\.?[0-9]+ | [-+]?[0-9]*\.?[0-9]+ | ||
</syntaxhighlight> | |||
With matching scientific notation (e.g. 1.5e-6). | |||
[https://rgxdb.com/r/1RSPF8MG Reference] | |||
<syntaxhighlight lang+"ragel"> | |||
([-+]?\d*\.?\d+)(?:[eE]([-+]?\d+))? | |||
</syntaxhighlight> | </syntaxhighlight> | ||
Revision as of 12:07, 23 September 2019
Regular expressions are used for matching text.
Useful Regular Expressions
Mostly copied from Regex DB.
Floating Point Number
Without matching scientific notation (e.g. 1.5e-6). Reference
[-+]?[0-9]*\.?[0-9]+
With matching scientific notation (e.g. 1.5e-6). Reference
([-+]?\d*\.?\d+)(?:[eE]([-+]?\d+))?