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From: toddpw@tybalt.caltech.edu (Todd P. Whitesel)
Newsgroups: comp.sys.apple2
Subject: Re: Searching through directories
Keywords: directories
Message-ID: <1990Oct10.034113.12220@nntp-server.caltech.edu>
Date: 10 Oct 90 03:41:13 GMT
References: <2080@oucsace.cs.OHIOU.EDU>
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bchurch@oucsace.cs.OHIOU.EDU (Bob Church) writes:

>I'm putting together a program in which I need to search through 
>directories. The problem is that the number of files is open ended.
>A subdirectory can be a mixture of any number of regular files and 
>subs. Can anyone help me with a good strategy on this? I don't need
>code, just a way of thinking this thing through. Where do you start
>and how do you keep track?

You start by calling a routine with the volume directory -- this routine
processes each file in the directory and each time it reaches a subdirectory
it calls itself with the subdirectory. This requires that you save stuff on
the stack, but if you are doing it in a high level language then the stack
manipulation is trivial (it's built into the languages' subroutine calls).

Todd Whitesel
toddpw @ tybalt.caltech.edu