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CS451 Selected Lecture Notes
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Regular Expression Basic Syntax Reference
Characters
Character
Description
Example
Any character except [\^$.|?*+()
All characters except the listed special characters match a single instance of themselves. { and } are literal characters, unless they're part of a valid regular expression token (e.g. the {n} quantifier).
a matches a
\ (backslash) followed by any of [\^$.|?*+(){}
A backslash escapes special characters to suppress their [...]
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