[fpc-pascal] TProcess questions
Michael Van Canneyt
michael at freepascal.org
Tue Oct 3 10:19:25 CEST 2006
On Tue, 3 Oct 2006, Adrian Maier wrote:
> On 10/3/06, Michael Van Canneyt <michael at freepascal.org> wrote:
> > > Any idea how should i quote the arguments so that they would be properly
> > > treated by TProcess?
> > You can't. The following lines (line 107 of unix/process.inc)
> > Result:=StringReplace(Result,'"','',[rfReplaceAll]);
> > Result:=StringReplace(Result,'''','',[rfReplaceAll]);
> > Will strip all quotes inside a quoted string.
> > Obviously, this is a bug.
> It's a painful one. I was hoping to switch to TProcess instead of shell (
> which isn't cross-platform ) ...
The bug won't occur on windows :)
I will see about fixing it. Could you please post a bug report so it won't
> > > 2. Where is the TProcess documented on the freepascal website?
> Michael, Vincent ,
> Thanks for the links for TProcess docs . :-)
> > > 3. The code returned by the called program can be got with
> > > TProcess.ExitCode , right ? I have a situation in which a program 1
> > > , but TProcess.ExitCode is 0. Therefore it's impossible to detect
> > > the failure.
> > That can be if the program exited because of a signal.
> I'm not sure if this was the case - I'll have to investigate.
> Anyway, is it possible to detect this situation ?
Well, first of all you should do a 'IsRunning' (or running) before checking
the exitcode. Only after that you can check the exit code. About the
signalling, we'd need to extend TProcess for that.
More information about the fpc-pascal