Using the Special Pattern Matchers

These pattern matchers are used to locate hard-to-find items within text:

• Regular expression matching for complex patterns http://www.thunderstone.com/texis/site/pages/regexp.html

• Approximate pattern matching for fuzzy searches http://www.thunderstone.com/texis/site/pages/xpm.html

• Numeric pattern matching for finding quantities http://www.thunderstone.com/texis/site/pages/npm.html

If improperly used these pattern matchers can slow queries. Therefore they require other keyword(s) in the query and are disabled entirely under Page proximity. For more details see the Vortex manual on Query Protection (http://www.thunderstone.com/site/vortexman/query_protection.html).