Re: Trapping error before _ALERT

[Adam -Nalfein- Dziendziel <whiteraven@...>]

Jacek Czerwinski wrote:

> How can I trap error, get filename, line, maximum of infos - BEFORE
> error message is formatted into string.
>
> Analyzing the error string isn't too much 'profi'...
>
> I CAN use (and replace) _ALERT but _ALERT is too late.
>  
AFAIK Lua always creates this string - you cannot change this without 
changing Lua code. But as I see only functions from lauxlib.c uses 
_ALERT - if you don't need it you can rewrite callalert() - for example 
into function which throws C++ exceptions - and recompile Lua with 
modified lauxlib.c. In the exception you can use lua_getstack() and 
lua_getinfo() (see manual) to get filename, line etc. without parsing.

--
Adam -Nalfein- Dziendziel,
Poland