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On Nov 5, 2009, at 9:59 PM, zweifel wrote:
Second, Is there anyway of knowing inside a lua script, automatically the name of the script itself.I would like to have something like in bash shell, where the first argument is the name of the program called. In Lua is there a way to get the value passed to lua_pcall() inside the script called, in order to know its own name automatically?Thanks in advance, Danilo
Functions don't fundamentally have names in Lua. From the documentation on the lua_Debug struct:
"name: a reasonable name for the given function. Because functions in Lua are first-class values, they do not have a fixed name: some functions can be the value of multiple global variables, while others can be stored only in a table field. The lua_getinfo function checks how the function was called to find a suitable name. If it cannot find a name, then name is set to NULL. "
If you have access to the debug library inside your Lua environment, debug.getinfo contains a function that you can use to retrieve information like what name the function was called from.
Nevin