KEY

The KEY command is used to perform a keyword search of all the help topics on-line with a provided keyword predicate. The first 100 help topics that match the keyword predicate are displayed and any one can be selected at the "Enter topic name or <RETURN> for more:" prompt. Once a topic has been selected from the matching list, the user is placed in the normal help browser.

 KEY keyword [[AND,OR] keyword]...

The keyword predicate is a series of keywords, each with an optional logical operation. For instance "vector OR image" would list all topics with the vector or the image keywords, while "vector AND image" would list all topics with both vector and image keywords. The only possible operations are "AND" and "OR", but the default operation is "OR" if none is provided. Thus, "vector line polygon" is the same as "vector OR line OR polygon".

Keyword searches are case insensitive and will match any subset of the keyword stored for a topic. Therefore "vector" would find a topic with "vectors" or "eigenvector".

Example:

 KEY rasterize
 KEY vector AND export