Category:Regular Expressions
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A Regular Expression is a way to characterize a pattern that you would like to match or validate. Regular expressions, sometimes referred to as regex or regexp, are particularly helpful when working with or manipulating messy or unstructured character strings.
[edit] What Can I Do With Regex?
- Match a pattern
- Extract the matching characters
- Replace the matched characters with a new string (i.e. Find-and-Replace)
[edit] Regex in SAS
There are a number of ways to use regular expressions in SAS.
- RX functions and call routines - Version 7
- PRX functions and call routines - Version 9
- Calling a script( e.g. Perl ) via the x or %sysexec statments
- java.util.regex package via the Java Object - Version 9
[edit] Why Would I Want to Learn Regex?
Articles in category "Regular Expressions"
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