[fpc-pascal] run pascal programs as scripts

Robert Wolfe wolfe.robwolfe at gmail.com
Thu Mar 24 22:35:16 CET 2011

On 3/24/2011 2:27 PM, Mark Morgan Lloyd wrote:
> Michael Van Canneyt wrote:
>> On Thu, 24 Mar 2011, Mattias Gaertner wrote:
>>> Hi all,
>>> I would like to execute small pascal programs like normal unix
>>> scripts. For example:
>>> #!/usr/bin/instantfpc
>>> begin
>>>  writeln('shebang executed');
>>> end.
>>> Has anyone already written a tool, that compiles and
>>> runs the program?
>> As far as I know, the "!/something just means, start /something, and 
>> pass current filename as a commandline param ?
> In general, "pass all parameters" allowing that unix doctrine expects 
> an implicit zeroeth parameter which is the name of the current program.
>> So all your tool has to do is write all except the first line to a 
>> temp file, compile temp file and execute it ?
> If I recall correctly, Rexx has special handling for the first line 
> which- intentionally or otherwise- facilitates shebang handling. Also 
> I'm reminded of a Perl option which causes it to throw away anything 
> before valid scripting.
> Would it be feasible to modify FPC so that it discarded everything 
> preceding "program", "unit" etc?

It wouldn't be Pascal then :)

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