Manual:Regular Expressions: Difference between revisions

From MikroTik Wiki
Jump to navigation Jump to search
No edit summary
No edit summary
 
Line 1: Line 1:
RouterOS support POSIX regular expression syntax ([http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap09.html POSIX standard]), with some exceptions:
RouterOS support POSIX regular expression syntax ([http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap09.html POSIX standard]), with some exceptions:


* '{}' bounds are not supported;
* "()" must not be empty;
* "()" must not be empty;
* equivalence classes are not supported ("<nowiki>[[.ch.]]</nowiki>");
* equivalence classes are not supported ("<nowiki>[[.ch.]]</nowiki>");

Latest revision as of 09:29, 17 September 2020

RouterOS support POSIX regular expression syntax (POSIX standard), with some exceptions:

  • "()" must not be empty;
  • equivalence classes are not supported ("[[.ch.]]");
  • collating elements are not supported ("[[=a=]b]");
  • matching is done in single pass, no backtracking.

Following services in RouterOS are using Regexps:

  • firewall L7 matchers
  • BGP filters
  • CAPSMAN provisioning
  • TFTP
  • Web Proxy
  • Hotspot Walled Garden
  • DNS
  • Console with '~' operator