Re: pslatex terminal output--Problem identified.

[Petr M. <mi...@ph...>]

>> This is already supported in 4.1 via the "set termoption" command.
>> "set termoption enhanced" will flip the current terminal into
>> enhanced mode without changing anything else.
>> 
>> As of now only a limited subset of the possible terminal options
>> can be changed mid-flight in this way: {no}enhanced and the
>> default font.  Other options may be added, subject to the
>> concern that the option must have the same meaning for multiple
>> terminals.
>> 
>
> I guess I am not being clear. As I said, the problem with sticky options
> is that it is impossible to predict what setting one going to get when
> issued a command "set term post color". Let's say I am using a gnuplot
> as a graphical backend to some program and I want to have a command "print" 
> that does "set term post color; set output 'file.out'; replot".
> The only way I can get a consistent format of the output graph if I specify 
> explicitly _all_ the options to the "set term postscript" thing.

In summary, there are cases where modifiable options are preferred, and 
other where sticky options would be preferred.

Possible solutions:
- "set term{options} {no}stickyoptions"
- set term {xxx} default  or   reset term   or  unset termoptions

This would require an update to terminals. IMHO, it would be quite easy.

I propose this:
change
    TERM_PUBLIC void XXX_options __PROTO((void));
to
    TERM_PUBLIC void XXX_options __PROTO((int flag));

and if (flag==0) execute the current code, and if (flag==1) then reset all 
options to default values.

It needs to a small update to all terminals, but is easy to do.

> One example is when one does "set term post eps" and later "set term 
> pslatex". Since the "eps" option is sticky it messes up the pslatex 
> terminal...

Options are particular for a given terminal, not for different terminals. So 
the above case won't happen.

---
PM