The following table describes how each of these metacharacters functions. The following single characters are not interpreted as literals but instead have special meanings: Note that regular expressions are case sensitive, so www will not match WWW or wWw. LiteralsĪny single character, except for those reserved as metacharacters, is already a regular expression itself. Regex ComponentsĪ RegEx can include literals and metacharacters. For example, you can define a RegEx that will match email addresses, PII, PHI or credit card numbers. Using this little language, you specify rules that define the strings you want to match. Regular expressions are a small but highly specialized programming language they are basically wildcards on steroids. Data Classification for Compliance: Looking at the Nuances.
Data Classification: What It Is, Why You Should Care and How to Perform It
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