Fortinet 5.0 Patch 6 - page 381

Fortinet 381 FortiWeb 5.0 Patch 6 Administration Guide
Since attackers often try new attack forms to evade filters, the regular expression uses a few
techniques for flexible matching:
• case insensitivity — (?i)
• alternative quotation marks — ["'`?“”„?‚’‘'?‹›«»]
• word breaks of zero or more white spaces — (\s)*
• word breaks using forward slashes instead of white space — [\s\/]*
• zero or more new line breaks within the tag — (\n|.)*