Dynamic string arrays in slang/jed?

[Brian Blais <bblais@xxxxxxxxxx>]

Hello,

I'm new to this list, and to jed, but I searched the archives and the
documentation and haven't found the answer to it.  Hopefully I am not asking
something that has been hashed over before.

I am trying to make a string array which doesn't have a specified size at the
beginning.  For example, getting a list of all of the images in a directory,
but I don't know how big the directory is.  I made a function isimage() which
takes a string, and returns a true or false.  I then go through a directory
listing, and want to add to my string array everytime I find an image.
Something like (which is not proper syntax):

fnames=[fnames; newstring];  % to add an element to the fnames string

My current solution is to use a jed buffer, copy the buffer, and then do a
strtok() call looking for end-of-line characters:

dirname="/home/blah/tmp";

s=listdir(dirname);

for (i=0; i<length(s); i++) {
    if (isimage(s[i])) {
       insert(dirname+"/"+s[i]+"\n");
    }
}

bob();
push_mark();
eob();

fnames=bufsubstr();
fnames=strtok(fnames,"\n");

Is there a better solution?  There are other applications that I would like
this functionality for, that don't involve directory listings, so a general
way to increase the size of an existing string array would be great.

thanks,

Brian Blais


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            bblais@xxxxxxxxxx
            web.bryant.edu/~bblais

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