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Option '-l g=mod' added to the manual 

Plus some other improvements in the manual.
This commit is contained in:
Roberto Ierusalimschy 2022-10-19 16:30:39 -03:00
parent 14d2803e55
commit c954db3924
1 changed files with 12 additions and 11 deletions
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23
manual/manual.of
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@ -1423,9 +1423,6 @@ A label should not be declared
where a label with the same name is visible, where a label with the same name is visible,
even if this other label has been declared in an enclosing block. even if this other label has been declared in an enclosing block.
Labels and empty statements are called @def{void statements},
as they perform no actions.
The @Rw{break} statement terminates the execution of a The @Rw{break} statement terminates the execution of a
@Rw{while}, @Rw{repeat}, or @Rw{for} loop, @Rw{while}, @Rw{repeat}, or @Rw{for} loop,
skipping to the next statement after the loop: skipping to the next statement after the loop:
@ -2361,6 +2358,7 @@ Lua is a lexically scoped language.
The scope of a local variable begins at the first statement after The scope of a local variable begins at the first statement after
its declaration and lasts until the last non-void statement its declaration and lasts until the last non-void statement
of the innermost block that includes the declaration. of the innermost block that includes the declaration.
(@emph{Void statements} are labels and empty statements.)
Consider the following example: Consider the following example:
@verbatim{ @verbatim{
x = 10 -- global variable x = 10 -- global variable
@ -3165,8 +3163,7 @@ The index must be the last index previously marked to be closed
A @idx{__close} metamethod cannot yield A @idx{__close} metamethod cannot yield
when called through this function. when called through this function.
(Exceptionally, this function was introduced in release 5.4.3. (This function was introduced in @N{release 5.4.3}.)
It is not present in previous 5.4 releases.)
} }
@ -3713,7 +3710,7 @@ Pops a key from the stack,
and pushes a key@En{}value pair from the table at the given index, and pushes a key@En{}value pair from the table at the given index,
the @Q{next} pair after the given key. the @Q{next} pair after the given key.
If there are no more elements in the table, If there are no more elements in the table,
then @Lid{lua_next} returns 0 and pushes nothing. then @Lid{lua_next} @N{returns 0} and pushes nothing.
A typical table traversal looks like this: A typical table traversal looks like this:
@verbatim{ @verbatim{
@ -5539,8 +5536,8 @@ It is defined as the following macro:
@verbatim{ @verbatim{
(luaL_loadfile(L, filename) || lua_pcall(L, 0, LUA_MULTRET, 0)) (luaL_loadfile(L, filename) || lua_pcall(L, 0, LUA_MULTRET, 0))
} }
It returns @Lid{LUA_OK} if there are no errors, It @N{returns 0} (@Lid{LUA_OK}) if there are no errors,
or an error code in case of errors @see{statuscodes}. or 1 in case of errors.
} }
@ -5552,8 +5549,8 @@ It is defined as the following macro:
@verbatim{ @verbatim{
(luaL_loadstring(L, str) || lua_pcall(L, 0, LUA_MULTRET, 0)) (luaL_loadstring(L, str) || lua_pcall(L, 0, LUA_MULTRET, 0))
} }
It returns @Lid{LUA_OK} if there are no errors, It @N{returns 0} (@Lid{LUA_OK}) if there are no errors,
or an error code in case of errors @see{statuscodes}. or 1 in case of errors.
} }
@ -8577,7 +8574,7 @@ the returned status is this number.
The default value for @id{code} is @true. The default value for @id{code} is @true.
If the optional second argument @id{close} is true, If the optional second argument @id{close} is true,
closes the Lua state before exiting. the function closes the Lua state before exiting @seeF{lua_close}.
} }
@ -8985,12 +8982,16 @@ The options are:
@item{@T{-i}| enter interactive mode after running @rep{script};} @item{@T{-i}| enter interactive mode after running @rep{script};}
@item{@T{-l @rep{mod}}| @Q{require} @rep{mod} and assign the @item{@T{-l @rep{mod}}| @Q{require} @rep{mod} and assign the
result to global @rep{mod};} result to global @rep{mod};}
@item{@T{-l @rep{g=mod}}| @Q{require} @rep{mod} and assign the
result to global @rep{g};}
@item{@T{-v}| print version information;} @item{@T{-v}| print version information;}
@item{@T{-E}| ignore environment variables;} @item{@T{-E}| ignore environment variables;}
@item{@T{-W}| turn warnings on;} @item{@T{-W}| turn warnings on;}
@item{@T{--}| stop handling options;} @item{@T{--}| stop handling options;}
@item{@T{-}| execute @id{stdin} as a file and stop handling options.} @item{@T{-}| execute @id{stdin} as a file and stop handling options.}
} }
(The form @T{-l @rep{g=mod}} was introduced in @N{release 5.4.4}.)
After handling its options, @id{lua} runs the given @emph{script}. After handling its options, @id{lua} runs the given @emph{script}.
When called without arguments, When called without arguments,
@id{lua} behaves as @T{lua -v -i} @id{lua} behaves as @T{lua -v -i}