Contents

Parse String RegEx

This System tool allows the parsing of a string based on a standard regular expression. This could be used to check and match IP, email, or SIP addresses within a string.

Inputs

String

The string to parse.

Expression

A string containing the regular expression with which the string is to be parsed. The regular expression uses the following escape sequences:

"\+"	Represents the one or more repetition operator
"\?"	Represents the zero or one repetition operator
"\[" and "\]"	Used to specify character ranges (sets)
"\{" and "\}"	Used for bounded repetitions
"\(" and "\)"	Used to group sub-expressions
"\\|"	Represents the alternation operator

Note: To get a single slash in the actual string at runtime, you need to enter double slashes. For example, to get the string "\+" you need to enter "\\+" in the Interaction Designer editor.

The expression syntax supported in this tool is based on the Boost Library's Perl regular expression syntax, which is available online at: http://www.boost.org (Search the Documentation link for: "Perl regular expression syntax")

Case Sensitive

When this checkbox is selected, case-insensitive comparisons are used. Clear this checkbox if you do not want the comparisons to be case-sensitive.

Outputs

Result

Text string containing the results of the expression applied to the parsed string.