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new interface to "lua_seterrormethod" and "lua_settagmethod", to

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allow the use of Lua functions too.
This commit is contained in:
Roberto Ierusalimschy
1997-06-19 15:03:04 -03:00
parent a38f093f05
commit 88f020b626
5 changed files with 25 additions and 22 deletions
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17
manual.tex
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@@ -1,4 +1,4 @@
% $Id: manual.tex,v 2.1 1997/06/18 20:14:52 roberto Exp roberto $
% $Id: manual.tex,v 2.2 1997/06/18 21:11:53 roberto Exp roberto $
\documentstyle[fullpage,11pt,bnf]{article}
@@ -38,7 +38,7 @@ Waldemar Celes
\tecgraf\ --- Computer Science Department --- PUC-Rio
}
\date{\small \verb$Date: 1997/06/18 20:14:52 $}
\date{\small \verb$Date: 1997/06/18 21:11:53 $}
\maketitle
@@ -1457,19 +1457,20 @@ Otherwise, the whole program terminates with a call to \verb|exit(1)|.
The error handler method \see{error} can be changed with:
\Deffunc{lua_seterrormethod}
\begin{verbatim}
lua_Object lua_seterrormethod (lua_CFunction method);
lua_Object lua_seterrormethod (void);
\end{verbatim}
This function returns a \verb|lua_Object|,
which is the old error method value.
This function sets the object at the top of C2lua
as the new error method,
and returns the old error method value.
Tag methods can be changed with:
\Deffunc{lua_settagmethod}
\begin{verbatim}
lua_Object lua_settagmethod (int tag, char *event, lua_CFunction method);
lua_Object lua_settagmethod (int tag, char *event);
\end{verbatim}
The first parameter is the tag,
the second is the event name \see{tag-method},
and the third is a CFunction to be used as the new method.
the second is the event name \see{tag-method};
the new method is pushed from C2lua.
This function returns a \verb|lua_Object|,
which is the old tag method value.
To get just the current value of a tag method,