[slang-users] SLang_restart, SLang_load_file returning -1, how do I restart?

[Jeremy Cowgar <jc@xxxxxxxxxx>]

I have an application that roughly does:

  SLang_init_all();

do alot of other things, and when the user wants to run a script:

  if(SLang_load_file(filename) == -1)
      SLang_restart(1);

now, with the application not restarting, and a syntax error in
"filename"... the user corrects the syntax error, but when they run the
new script w/o restarting the application, SLang complains:

S-Lang Error: Syntax Error: called from line 0, file: myfile.sl

myfile.sl on the first line calls a function that my application made
available via SLadd_intrin_fun_table(). That made me think that
SLang_restart(1) cleared all functions that are added to the stack,
maybe even undone the SLang_init_all(), so, first try I changed my
script running code to:

  if (SLang_load_file(filename) == -1) {
      SLang_restart(1);
      SLang_init_all();
      SLang_intrin_fun_table(...);
  }

but this produces errors in my log such as:

S-Lang Error: Undefined Name: An intrinsic symbol table may not be added
twice. []

Therefore, I thought, ok, it must not clear the init_all(), so I removed
it and only init'd my intrin_fun_table but recieved the exact same
error.

Now, restarting the application causes the script to run great. For
completness sake, the script in working condition is very simple:

  my_print("Hello, World!");

Now, to break it and check the restarting process, I simply did this:

  my_print("Hello, World!";

... did not put a closing brace ')'...

any ideas on how I can make this work correctly?

----
jeremy <jc@xxxxxxxxxx>

Q: What do you call a boomerang that doesn't come back?
A: A stick.

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