This quick fix should make Ctrl-C in the GF shell behave more like it does in
other shells: even if no command is running, Ctrl-C now just gives you a new
prompt instead of terminating the shell.
Work in progress on making the online grammar editor use the new "gf -server"
mode instead of the old upload.cgi script. A first benefit is that the
editor now calls the server to check the syntax of lin & lincat definitions.
(But the links to minibar/gfshell/quiz are not available at the moment.)
The command "gf -server" now starts a simple HTTP server on port 41295,
providing a simple web API to the GF compiler. It currently support the
follwing operations:
* creating new temporary directories for grammar uploads,
* uploading grammars files for use in the GF shell,
* executing GF shell commands, and
* accessing static files.
This means that GF now depends on some additional networking related packages,
but they should be available and easy to install on all platforms. There is
also a new configuration flag "server" in gf.cabal, so GF will be compiled
without support for server mode if the extra packages are unavailable.
Note that running gf -server while connected to the internet can be a security
risk. To prevent unauthorized access to the rest of the system, it is
advisable to run the server in GF_RESTRICTED mode and as a user with suitably
restricted file permissions.
The GF shell welcome message will now include something like
This is GF version 3.2.1-darcs.
Built on darwin/i386 with ghc-7.0, flags: interrupt
where a list of enabled configuration flags are included on the last line.
This is implemented in GF.Infra.BuildInfo by consulting the CPP macros
defined by the respective option in gf.cabal. For this to work,
GF.Infra.BuildInfo obviously has to be updated when new flags are added to
gf.cabal or if the CPP macros are renamed.
(Also, I suspect that if you reconfigure with different flags and rebuild GF
without cleaning first, the BuildInfo module will not be recompiled,
resulting in a misleading welcome message...)
