This is optional. This parameter textmax allows gencat to dynamically allocate the message text area. The format of a message text source file is defined as follows. Set identifiers within a single source file need not be contiguous. Any string following the set identifier is treated as a comment.
Any string following the set number is treated as a comment.
Message identifiers need not be contiguous. Empty lines in a message text source file are ignored. If the character following a backslash is not one of those specified, the backslash is ignored. This version of gencat is built on the mkmsgs utility. The gencat database consists of two files, catfile.m, which is a mkmsgs format catalogue, and catfile, which contains the information required to translate a set and message number into a simple message number that can be used in a call to gettxt.