commit 3b5158f2a1d7e44bc67bab5c443bf034c0e2cb47
parent 60a8b94fd0e865fab202fbbd61f211fb4fde8181
Author: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Tue, 21 Jan 2003 15:44:49 -0200
corrections from Asko Kauppi
Diffstat:
1 file changed, 16 insertions(+), 17 deletions(-)
diff --git a/manual.tex b/manual.tex
@@ -1,4 +1,4 @@
-% $Id: manual.tex,v 1.64 2002/12/11 13:43:15 roberto Exp roberto $
+% $Id: manual.tex,v 1.65 2003/01/20 11:03:05 roberto Exp roberto $
%{[(
\documentclass[11pt,twoside]{article}
@@ -134,7 +134,7 @@ Waldemar Celes
\tecgraf\ --- Computer Science Department --- PUC-Rio
}
-%\date{{\small \tt\$Date: 2002/12/11 13:43:15 $ $}}
+%\date{{\small \tt\$Date: 2003/01/20 11:03:05 $ $}}
\maketitle
@@ -570,8 +570,10 @@ and can contain the C-like escape sequences
`\verb|\t|' (horizontal tab),
`\verb|\v|' (vertical tab),
`\verb|\\|' (backslash),
-`\verb|\"|' (double quote),
-`\verb|\'|' (single quote),
+`\verb|\"|' (quotation mark),
+`\verb|\'|' (apostrophe),
+`\verb|\[|' (left square bracket),
+`\verb|\]|' (right square bracket),
and `\verb|\|\emph{newline}' (that is, a backslash followed by a real newline,
which results in a newline in the string).
A character in a string may also be specified by its numerical value
@@ -1393,7 +1395,7 @@ functions \verb|setmetatable| and \verb|getmetatable| \see{pdf-getmetatable}.
For each of those operations Lua associates a specific key
called an \emph{event}.
When Lua performs one of those operations over a table or a userdata,
-if checks whether that object has a metatable with the corresponding event.
+it checks whether that object has a metatable with the corresponding event.
If so, the value associated with that key (the \IndexEmph{metamethod})
controls how Lua will perform the operation.
@@ -1519,11 +1521,11 @@ the \verb|<| operation.
\item[``le'':]\IndexTM{lt}
the \verb|<=| operation.
\begin{verbatim}
- function lt_event (op1, op2)
+ function le_event (op1, op2)
if type(op1) == "number" and type(op2) == "number" then
- return op1 < op2 -- numeric comparison
+ return op1 <= op2 -- numeric comparison
elseif type(op1) == "string" and type(op2) == "string" then
- return op1 < op2 -- lexicographic comparison
+ return op1 <= op2 -- lexicographic comparison
else
local h = getbinhandler(op1, op2, "__le")
if h then
@@ -1804,13 +1806,10 @@ like a daemon or a web server ---
might need to release states as soon as they are not needed,
to avoid growing too large.
-With the exception of \verb|lua_open|,
-all functions in the Lua API need a state as their first argument.
-
\subsection{Threads}
-Lua offers a partial support for multiple threads of execution.
+Lua offers partial support for multiple threads of execution.
If you have a C~library that offers multi-threading,
then Lua can cooperate with it to implement the equivalent facility in Lua.
Also, Lua implements its own coroutine system on top of threads.
@@ -2247,7 +2246,7 @@ and then it frees its corresponding memory.
\subsection{Metatables}
-The following functions allow you do manipulate the metatables
+The following functions allow you to manipulate the metatables
of an object:
\begin{verbatim}
int lua_getmetatable (lua_State *L, int objindex);
@@ -2338,7 +2337,7 @@ The table is left where it was in the stack;
this is convenient for getting multiple values from a table.
As in Lua, this function may trigger a metamethod
-for the ``gettable'' or ``index'' events \see{metatable}.
+for the ``index'' event \see{metatable}.
To get the real value of any table key,
without invoking any metamethod,
use the \emph{raw} version:
@@ -2989,7 +2988,7 @@ The current content of this string is {\tt "Lua \Version"}.
\subsubsection*{\ff \T{assert (v [, message])}}\DefLIB{assert}
Issues an \emph{``assertion failed!''} error
-when its argument \verb|v| is \nil;
+when its argument \verb|v| is \nil{} or \false;
otherwise, returns this argument.
This function is equivalent to the following Lua function:
\begin{verbatim}
@@ -3692,10 +3691,10 @@ so that subsequent calls to \verb|table.getn(table)| return \verb|n|.
This library is an interface to most of the functions of the
standard C~math library.
(Some have slightly different names.)
-It provides all its functions inside the table \verb|math|\DefLIB{math}.
+It provides all its functions inside the table \IndexLIB{math}.
In addition,
it registers a ??tag method for the binary exponentiation operator \verb|^|
-that returns \Math{x^y} when applied to numbers \verb|x^y|.
+that returns \Math{x^y} when applied to numbers \verb|x| and \verb|y|.
The library provides the following functions:
\DefLIB{math.abs}\DefLIB{math.acos}\DefLIB{math.asin}\DefLIB{math.atan}
