Regular expressions |
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Texts are summarised into Moskito G SHARP often to groups. This can be, e.g., file names by which several should be defined according to a rule. This happens with the help of regular expressions.
A regular expression is a pattern which is applied as a rule to a text. Then it turns out either a hit or not.
Regular expressions exist of normal signs and the special characters *?, []!, ^, - and \.
The signs mean in detail:
* for any number of any signs ? for exact any sign [SET] exactly one of the signs described in SET [! SET] or [^SET] exactly one of the signs not specified in SET [Set *] arbitrarily many of the signs specified in SET SET is defined by enumeration (without separator) or areas of letter (case sensitively) or pay with syntax a-z.
Do the special characters [] * have to go?! ^ - \are treated as normal signs, must be predone these in each case \.
Examples
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