HELP VEDMEMFILE                       A.Sloman & Nicola Yuill April 1990
                                        Updated Aaron Sloman  1 Feb 1996

<ENTER> MEM <taskname>
<ENTER> GOMEM <taskname>
GOMEM <taskname>

Facility for remembering which file you are editing and current cursor
location in it, with the possibility of returning to that location in
that file in a later Poplog session (e.g. after logging out). The
taskname is optional, and is needed only if you wish to remember
different files on different occasions and refer to them separately.

<ENTER> MEMS <taskname>
<ENTER> GOMEMS <taskname>
GOMEMS <taskname>

Facility for remembering all the files you are currently editing and
current cursor locations in all of them, with the possibility of
returning to all of them in a later Poplog session (e.g. after logging
out). The taskname is optional, and is needed only if you wish to
remember different groups of files on different occasions and refer to
them separately.

-- Overview -----------------------------------------------------------

The general idea is that your work may switch between several tasks each
concerned with several files. For each task you may wish VED to remember
which file you were last working on and on which line of that file. The
commands

    <ENTER> mem
    <ENTER> mem <taskname>

are used to tell ved to remember the current file and its line number.
If you don't specify a <taskname> it just assumes that you wish to
record the file and line number anyway.

Different locations in the same file can be recorded under different
tasknames.

Later, possibly after logging out and logging in again, you can give
one of the following commands to return to a remembered file:

To Pop-11

    gomem
    gomem   <taskname>

To Lisp

    @gomem
    @gomem <taskname>


To VED (using any Poplog language system)

    <ENTER> gomem
    <ENTER> gomem <taskname>

It is possible also to set up your init.p or other initialisation file
so that as soon as you return to Poplog it goes back to the file last
recorded with the '<ENTER> mem' command.

If instead of recording only one file you wish to remember several
currently edited files, use "gomems" instead of "gomem" in the above
commands.


-- How it works -------------------------------------------------------

Each time you give the '<ENTER> mem' command the name of the current VED
file and the line number are stored in a special file, and when you give
a gomem command that file is read to discover which file you were last
editing and which line you were on.

Using 'mems' and 'gomems' instead of 'mem' and 'gomem' makes it store or
return to a group of files.

-- Using a task name --------------------------------------------------

A different memory file is used for each taskname. In order to decide
which file name to use for the memory file the commands look at a global
variable called vedmemfile, whose default value is the string

    '$HOME/.memfile'                      (in Unix)
    '[<YOUR LOGIN DIRECTORY>]MEMFILE'     (in VMS)

You can assign another string to -vedmemfile- if preferred.

If you give a task name as argument to <ENTER> mem, or to gomem, then
that task name is appended to the string -vedmemfile-.

Thus if you are editing a file called 'myfile' and you do
    <ENTER> mem work

then the full pathname for myfile and the current line number will be
stored in a file called

    .memfile.work   (in Unix)
    memfile_work    (in VMS)

in your $HOME directory (unless you have assigned a different string to
vedmemfile).

If you log out and later log in again and type, to Pop-11

    gomem work

or to VED

    <ENTER> gomem work

it will read the file '$HOME/.memfile.work' to find out where to go
(or the corresponding VMS file).

Similarly with gomems.

If you don't specify a task name, then the name of the file used as the
memory file is just the value of -vedmemfile-.

--- Copyright University of Sussex 1988. All rights reserved. ----------

--- $poplocal/local/help/vedmemfile
--- Copyright University of Birmingham 1996. All rights reserved. ------