function: eval

[Tolnaftate2004]

eval()

eval(str) - evaluates/executes a string of GScript.

You asked for it and you got it. eval is a function available in other scripting languages. Its only parameter is a string of code to be executed. This is not so much to show off the script, but rather I hope I can get some input into what this function should do. Useful? Sure. You could save expressions such as "player.hp += this.hpgain;" in mudlib files, or similar. The possibilities are probably endless, but I'm just the guy doing the coding.

Currently supports:

• strings, arrays, variables, functions, comments, operators
• error catching, garbage collection
• variable assignment toggling, protection

To be added:

• flow structures
• temp.- variables of calling function accessible

To be limited in final release:

• for, while, do-while loops
• 'new' operator
• script complexity

If there's something you want to fix/write, go ahead and post your update in this thread. Questions, comments, critique, and requests are welcomed. Please try it and report issues!

I have included an "unstable" version of the parser. It may have some debug messages, etc. This file will be updated more regularly.

Updates:

• April 16
  • fixed small bug with constructs like a(2) [the 2 turned into 0].
  • added support for dynamic variable names this.(@blah).
  • added support for the [] operator.
• April 19
  • added support for special concatenation operators (SPC, TAB, NL), oops!
  • tested @ array; it works
• April 26
  • fixed a bug with inserting operators with constructs like h = f(g(x)).
  • the script is accurately finding functions (there may be some issues). It is not yet calling the functions, though.
• April 28, 29, 30
  • Made the dot operator a LOT faster, yay!
  • added support for functions, woo!
  • added comma operator (that should be all of them!)