On Nov 14, 2007 8:22 AM, Michele Simionato <[EMAIL PROTECTED]> wrote:
[...]
> My expectation would be can a script can be executed by
> writing something like
>
> #!/usr/bin/env alice
> print "Hello World\n"
>
> and making the script executable, but this is clearly unsupported, since
> running that gives
>
> $ ./hello.aml
> Alice 1.4 ("Kraftwerk 'Equaliser' Album") mastered 2007/04/24
> ### loaded signature from x-alice:/lib/system/Print
> ### loaded signature from x-alice:/lib/tools/Inspector
> ### loaded signature from x-alice:/lib/distribution/Remote
> ### evaluating file /Users/micheles/md/ml/hello.aml
> hello.aml:1.0-1.3: unknown value or constructor `#!/'Yes, the characters sequence #!/ is a valid symbolic identifier in SML. Also, the syntax # lab is special and explained on page 49 (60) of http://www.cs.cmu.edu/~rwh/smlbook/online.pdf . Personally, particularly after having experienced the (very fast!) speed at which Poly/ML compiles code, I think that interactive SML implementations should simply add a non-standard special case for shebangs (perhaps with a suitable command-line argument). That would allow SML to be used as a powerful scripting language. In practice, ordinary SML source files never start with the symbolic identifier #!/. -Vesa Karvonen _______________________________________________ alice-users mailing list [email protected] http://www.ps.uni-sb.de/mailman/listinfo/alice-users
