Chapter 11. Regular Expression Methods from RegexSupport.g
Compile— compiles a regular expression to a form that is more efficient to evaluate.CompileSubst— compiles a substitution pattern.CompileSubstEx— an alternate interface to CompileSubst.Config— queries the PCRE library for compiled-in options.Exec— applies a regular expression match to a subject string.pcrs_job.Exec— applies a compiled pattern substitution to a subject string.GetStringNumber— retrieves the index number of named substrings.Match— a convenience function that combines calls to Compile, Study, and Exec.Study— helpful for speeding up repeated applications of a regular expression.Subst— applies a substitution pattern to a string of a given length.
The RegexSupport.g file provides support for the Perl-Compatible
Regular Expression (PCRE) library (http://www.pcre.org/) and includes the PCRS
substitution extensions to PCRE.
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You must require the Regex support methods before you can use them in a script. At the top of your script, include the following line: require (RegexSupport); The |
The RegexSupport.g file provides three classes:
Regex, a compiled regular expression pattern. All but one of the methods in this reference are for this class.pcrs_job, a compiled substitution expression. There is one method for this class,pcrs_job.Exec.pcre_extra, which contains hints for the regular expression Exec function to speed up execution.
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