com.atlassian.confluence.content.render.xhtml.migration.exceptions.UnknownMacroMigrationException: The macro 'next_previous_link3' is unknown.

Regular Expression Extension

This extension provides basic RegEx execution capabilities to Siddhi. Following are the functions of the RegEx extension.

Find function

Syntax<bool> regex:find (<string> regex , <string> inputSequence )
Extension TypeFunction
DescriptionThis method attempts to find the next sub-sequence of the  inputSequence  that matches the  regex  pattern. It returns true if such a sub sequence exists, or returns false otherwise.
Examples
  • find("\d\d(.*)WSO2", "21 products are produced by WSO2 currently") returns true.
  • find("\d\d(.*)WSO2", "21 products are produced currently") returns false.
Syntax<bool> regex: find (<string> regex , <string> inputSequence, <int> startingIndex )
Extension TypeFunction
DescriptionThis method attempts to find the next sub-sequence of the  inputSequence  that matches the  regex  pattern starting from given index (i.e.  startingIndex ). It returns true if such a sub sequence exists, or returns false otherwise.
Examples
  • find("\d\d(.*)WSO2", "21 products are produced within 10 years by WSO2 currently by WSO2 employees",  30) returns true.
  • find("\d\d(.*)WSO2", "21 products are produced within 10 years by WSO2 currently by WSO2 employees", 35) returns false.


Group function

Syntax<string> regex: group (<string> regex , <string> inputSequence , <int>  groupId )
Extension TypeFunction
DescriptionReturns the input sub-sequence captured by the given group during the previous match operation. Returns null if no sub-sequence was found during the previous match operation. For more information about the match operation, see matches.
Example group("(\d\d)(.*)(WSO2.*)", "21 products are produced within 10 years by WSO2 currently by WSO2 employees", 3) returns "WSO2 employees".


Looking At function

Syntax<string> regex: lookingAt (<string> regex , <string> inputSequence )
Extension TypeFunction
DescriptionThis method attempts to match the  inputSequence  against the  regex  pattern starting at the beginning.
Examples
  • lookingAt("\d\d(.*)WSO2", "21 products are produced by WSO2 currently in Sri Lanka") returns true.
  • lookingAt("WSO2(.*)middleware(.*)", "sample test string and WSO2 is situated in trace and its a middleware company") returns false.


Matches function

Syntax<string> regex: matches (<string> regex , <string> inputSequence )
Extension TypeFunction
DescriptionThis method attempts to match the entire  inputSequence  against the  regex  pattern.
Examples
  • matches("WSO2(.*)middleware(.*)", "WSO2 is situated in trace and its a middleware company") returns true.
  • matches("WSO2(.*)middleware", "WSO2 is situated in trace and its a middleware company") returns false.
com.atlassian.confluence.content.render.xhtml.migration.exceptions.UnknownMacroMigrationException: The macro 'next_previous_links2' is unknown.