Bounds Checking

From: Chuck Carson (
Date: 08/19/99

I am having a week long brain fart.... So excuse me if this
is newbie.

I need to do some bounds checking where the valid values
are the number 0, and the lower case letters a-z. (upper
case letters are converted prior to entering this function so
I do not need to worry about that)

I currently use (if arg && *arg) but this is letting thru
values such as -1.

This is in medit, to some additional menus I am adding.

Is there a more thorough method of doing this?


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