34f49a8692
* configure.ac: Output wrap/python/ajax/Makefile. * wrap/python/Makefile.am (SUBDIRS): Add ajax. * wrap/python/ajax/Makefile.am, wrap/python/ajax/README, wrap/python/ajax/ltl2tgba.html, wrap/python/ajax/spot.in: New files. * wrap/python/ajax/css/, wrap/python/ajax/js, wrap/python/ajax/logos: New directories. * README: Document wrap/python/ajax/.
69 lines
2.5 KiB
Text
69 lines
2.5 KiB
Text
ltl2tgba.html is a dynamic web page that translates user-supplied LTL
|
|
formulae to Transition-based Generalized Büchi Automata. The actual
|
|
translation work is performed by a CGI script in Python: spot.py.
|
|
|
|
This is actually meant to be a moderner rewrite of the cgi script in
|
|
../cgi-bin/
|
|
|
|
There are two ways to use the page: using a web server such as
|
|
Apache, or standalone.
|
|
|
|
In both cases you should ensure that the command `dot', from the
|
|
GraphViz package, is in the PATH. configure should have picked it up.
|
|
|
|
|
|
|
|
Standalone usage
|
|
================
|
|
|
|
Simply run the spot.py from this directory. This will create a
|
|
directory called spotimg/ in the current directory (this will hold the
|
|
generated pictures) and start an HTTP server on port 8000. Point your
|
|
browser to http://localhost:8000/ltl2tgba.html and you should be OK.
|
|
|
|
After you have killed the server process (e.g. with Control-C),
|
|
you may want to erase the spotimg/ directory.
|
|
|
|
Installing on a real web server
|
|
===============================
|
|
|
|
1) Install Spot first (run `make install' from the top-level).
|
|
|
|
The CGI script uses the Python bindings and assume they
|
|
have been installed. Near the top of the script, you
|
|
should see a call to sys.path.insert(), with the expected
|
|
location of the Python bindings for spot. This path was
|
|
configured from ./configure's arguments and you should not
|
|
have to fiddle with it. I'm mentionning it just in case.
|
|
|
|
2) Copy spot.py to some place were CGI execution is allowed.
|
|
Depending on your HTTP server's configuration, you may have
|
|
to rename the script as spot.cgi or something else, so
|
|
that the server accepts to run it.
|
|
|
|
Apache users in trouble should look at the following options
|
|
before digging the Apache manual deeper. These can go
|
|
in a .htaccess file (if allowed).
|
|
|
|
# Treat *.py files as CGI scripts
|
|
AddHandle cgi-script .py
|
|
|
|
# Allow CGI execution in some directory.
|
|
Options +ExecCGI
|
|
|
|
3) In the directory where you have installed spot.py,
|
|
create a subdirectory called spotimg/. This is where
|
|
the script will output its images and other temporary
|
|
files. (If you want to change this name, see the imgdir
|
|
variable at the top of the script.)
|
|
|
|
This directory must be writable by the Unix user that
|
|
will run the script when the HTTP server processes the
|
|
request.
|
|
|
|
spot.py purges old files (>15min) from this directory
|
|
each time it runs.
|
|
|
|
4) Copy the directories css/, js/, and logos/ along with ltl2tgba.html
|
|
to there destination. You may have to adjust a few paths at the
|
|
top of the html page.
|