Escape converts a string into a URL-safe format by escaping unsafe characters. Escaping a string is often necessary if the string is going to be passed as part of a URL.

Unescape converts a string in an escaped, URL-safe, format back to a string. It reverses the conversion performed by Escape.

The Post method will automatically escape the given content if necessary.

$\mathrm{URL}:-\mathrm{Escape}\left(''Hello\; World!''\right)$

$''Hello\%20World\%21''$

$\mathrm{URL}:-\mathrm{Unescape}\left(''Hello\%20World\%21''\right)$

$''Hello\; World!''$

The URL[Escape] and URL[Unescape] commands were introduced in Maple 18.

For more information on Maple 18 changes, see Updates in Maple 18.