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Metacharacters
A regular expression is defined using only two types of characters:
- literals which match themself (eg the pattern "f" will match only "f")
- metacharacters which have properties that allow a wide variety of disparate characters to be identified.
Combining literals with metacharacters allows patterns of text to be created that can describe a wide class of strings.
The following pages describe the metacharacters supported by the Regex extension for Frontier.
- Anchors
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Stuck on a point - Character Classes
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Matching any one of several characters - Frontier Constants
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Write it down quickly! - Quantifiers
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If matching one is good - matching more must be better - Alternation
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Match one of several patterns - Grouping
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Picking up the bits and pieces
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