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

Exclude part of a string in an include string.

Matches any IPv4 address

]+)\s()\s(?:\/>|>(.)) - (with global) finds all tags in scope 1st group is tagname 2nd group is attributes 3rd group (if it exists) is value of the tag ...

This is a sample text for use at my "Working With Data" workshop session on regular expressions.

repeat ... refactor