helpLinelength

Psychtoolbox › PsychMatlabTests

Mathworks Case ID: 41758, reported 4/12/98

HELP terminates if a line exceeds 131 characters, skipping rest of file.

Dear Denis,

I am writing in response to your email of Sunday, April 12, 1998, regarding
the following observation:

>Typing "help foo" is supposed to print out the whole file,
>but i discover that the rest of the file is ignored if any
>line is longer than around 135 characters.

There seems to be a limit of 131 characters in the M-file comment lines
that will be displayed as help text. I verified this using the following
commands:

>>x=help('foo')
>>size(x)

ans =


If this number is exceeded, the help text will ignore the rest of the
M-file. I will forward this to our development staff so that they may
consider addressing this in a future release of Matlab. As a workaround,
please keep the comment lines to under a 131 characters in length.

If you have further questions regarding this issue, please be sure to
mention the above Case ID in your email response to me.

Sincerely,

Jeff Arsenault
Technical Support Engineer
jeffreya@mathworks.com