This will remove all facebook urls from a HTML string

Find Telephone

a

gets a postgis tablename from a mapfile with the given layer name, may not work depending on your mapfile layout

Matches HTML structure

matching words between square brachets tags include newline or carriage return

This search for special character at first position in the string

matching any SQL query starting by "SELECT foo,bar FROM fool,baz {...}"

Exclude part of a string in an include string.

Get ClrNamespace and optional AssemblyName from XmlnsDefinition in xaml