curses and processing terminal escape characters
usernet at ilthio.net
Sat Oct 30 17:57:25 CEST 2010
On 2010-10-30, Lawrence D'Oliveiro <ldo at geek-central.gen.new_zealand> wrote:
> In message <iaf0l9$3h0$1 at speranza.aioe.org>, Tim Harig wrote:
>> Python could easily process the escape codes for any given terminal; but,
>> in general, you would want something that works for more then a single
>> terminal type.
> Does anyone still bother with anything other than VT1xx-type terminals?
1. Actually, most modern terminals and emulators have color which means
that they must by in the VT2xx range or above.
2. Yes there are still hardware terminals being used and not all of them
3. Even assuming that the OP is only conserned about VTxxx terminals, it is
still a better coding practice to use a layer of abstraction so as
to keep the "magic numbers" out of his code.
4. Just because VTxxx style terminals and emulators currently dominate
doesn't mean that they will do so forever. It is quite possible
that in an age where most terminals are emulated, that somebody
will create a new style of terminal that fits in better to the
virtual/graphical world in which they inhabit.
5. Although it is offtopic for this question, using the curses abstraction
rather then hardcoded values, allows a visual text based program to
work in places that do not act like a traditional terminal.
Microsoft Windows console fits this description because formating
commands are not sent in-band with the text data. By using
something like PDCurses, it is possible to run curses programs on
non-terminal environments such as these.
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