Import Lua 5.2.0 (alpha)

from http://www.lua.org/work/lua-5.2.0-alpha-rc1.tar.gz

README

@@ -1,5 +1,5 @@
 
-This is Lua 5.2 (work5), released on 30 Oct 2010.
+This is Lua 5.2 (alpha), released on 16 Nov 2010.
 
 For installation instructions, license details, and
 further information about Lua, see doc/readme.html.

doc/contents.html

@@ -22,8 +22,8 @@ <H1>
 
 <P>
 <IMG SRC="alert.png" ALIGN="absbottom" ALT="[!]">
-<EM>This is a work version of Lua 5.2.
-Everything may change in the final version.</EM>
+<EM>This is an alpha version of Lua 5.2.
+Some details may change in the final version.</EM>
 
 <P>
 The reference manual is the official definition of the Lua language.
@@ -52,7 +52,7 @@ <H2><A NAME="contents">Contents</A></H2>
 <LI><A HREF="manual.html#2.1">2.1 &ndash; Values and Types</A>
 <LI><A HREF="manual.html#2.2">2.2 &ndash; Environments and the Global Environment</A>
 <LI><A HREF="manual.html#2.3">2.3 &ndash; Error Handling</A>
-<LI><A HREF="manual.html#2.4">2.4 &ndash; Metatables</A>
+<LI><A HREF="manual.html#2.4">2.4 &ndash; Metatables and Metamethods</A>
 <LI><A HREF="manual.html#2.5">2.5 &ndash; Garbage Collection</A>
 <UL>
 <LI><A HREF="manual.html#2.5.1">2.5.1 &ndash; Garbage-Collection Metamethods</A>
@@ -484,7 +484,6 @@ <H3>auxiliary library</H3>
 <A HREF="manual.html#luaL_newlib">luaL_newlib</A><BR>
 <A HREF="manual.html#luaL_newmetatable">luaL_newmetatable</A><BR>
 <A HREF="manual.html#luaL_newstate">luaL_newstate</A><BR>
-<A HREF="manual.html#luaL_setfuncs">luaL_setfuncs</A><BR>
 <A HREF="manual.html#luaL_openlibs">luaL_openlibs</A><BR>
 <A HREF="manual.html#luaL_optint">luaL_optint</A><BR>
 <A HREF="manual.html#luaL_optinteger">luaL_optinteger</A><BR>
@@ -497,11 +496,12 @@ <H3>auxiliary library</H3>
 <A HREF="manual.html#luaL_pushresult">luaL_pushresult</A><BR>
 <A HREF="manual.html#luaL_ref">luaL_ref</A><BR>
 <A HREF="manual.html#luaL_requiref">luaL_requiref</A><BR>
+<A HREF="manual.html#luaL_setfuncs">luaL_setfuncs</A><BR>
+<A HREF="manual.html#luaL_setmetatable">luaL_setmetatable</A><BR>
 <A HREF="manual.html#luaL_testudata">luaL_testudata</A><BR>
 <A HREF="manual.html#luaL_tolstring">luaL_tolstring</A><BR>
 <A HREF="manual.html#luaL_traceback">luaL_traceback</A><BR>
 <A HREF="manual.html#luaL_typename">luaL_typename</A><BR>
-<A HREF="manual.html#luaL_typeerror">luaL_typeerror</A><BR>
 <A HREF="manual.html#luaL_unref">luaL_unref</A><BR>
 <A HREF="manual.html#luaL_where">luaL_where</A><BR>
 
@@ -512,10 +512,10 @@ <H3>auxiliary library</H3>
 <HR>
 <SMALL>
 Last update:
-Sat Oct 30 21:34:44 BRST 2010
+Tue Nov 16 09:56:07 BRST 2010
 </SMALL>
 <!--
-Last change: revised for Lua 5.2.0 (work5)
+Last change: revised for Lua 5.2.0 (alpha)
 -->
 
 </BODY>

doc/manual.html

@@ -17,8 +17,8 @@ <h1>
 </h1>
 
 <IMG SRC="alert.png" ALIGN="absbottom" ALT="[!]">
-<EM>This is a work version of Lua 5.2.
-Everything may change in the final version.</EM>
+<EM>This is an alpha version of Lua 5.2.
+Some details may change in the final version.</EM>
 <P>
 
 by Roberto Ierusalimschy, Luiz Henrique de Figueiredo, Waldemar Celes
@@ -38,7 +38,7 @@ <h1>
 <!-- ====================================================================== -->
 <p>
 
-<!-- $Id: manual.of,v 1.61 2010/10/29 12:51:39 roberto Exp $ -->
+<!-- $Id: manual.of,v 1.62 2010/11/16 11:38:25 roberto Exp $ -->
 
 
 
@@ -287,7 +287,7 @@ <h2>2.3 &ndash; <a name="2.3">Error Handling</a></h2>
 
 
 
-<h2>2.4 &ndash; <a name="2.4">Metatables</a></h2>
+<h2>2.4 &ndash; <a name="2.4">Metatables and Metamethods</a></h2>
 
 <p>
 Every value in Lua can have a <em>metatable</em>.
@@ -305,7 +305,7 @@ <h2>2.4 &ndash; <a name="2.4">Metatables</a></h2>
 <p>
 We call the keys in a metatable <em>events</em>
 and the values <em>metamethods</em>.
-In the previous example, the event is <code>"add"</code> 
+In the previous example, the event is <code>"__add"</code> 
 and the metamethod is the function that performs the addition.
 
 
@@ -383,7 +383,7 @@ <h2>2.4 &ndash; <a name="2.4">Metatables</a></h2>
 
 <p>
 For the unary <code>-</code> and <code>#</code> operators,
-the metamethod is called repeating the first argument as a second argument.
+the metamethod is called with a dummy second argument.
 This extra argument is only to simplify Lua's internals;
 it may be removed in future versions and therefore it is not present
 in the following code.
@@ -2731,13 +2731,12 @@ <h2>4.8 &ndash; <a name="4.8">Functions and Types</a></h2>
          return realloc(ptr, nsize);
      }
 </pre><p>
-This code assumes
+Note that ANSI&nbsp;C ensures
 that <code>free(NULL)</code> has no effect and that
 <code>realloc(NULL, size)</code> is equivalent to <code>malloc(size)</code>.
-ANSI&nbsp;C ensures both behaviors.
-It also assumes that <code>realloc</code> does not fail when shrinking a block.
-(ANSI&nbsp;C does not ensure this behavior,
-but it seems a safe assumption.)
+This code assumes that <code>realloc</code> does not fail when shrinking a block.
+ANSI&nbsp;C does not ensure this behavior,
+but it seems a safe assumption.
 
 
 
@@ -5989,6 +5988,19 @@ <h2>5.1 &ndash; <a name="5.1">Functions and Types</a></h2>
 
 
 
+<hr><h3><a name="luaL_setmetatable"><code>luaL_setmetatable</code></a></h3><p>
+<span class="apii">[-0, +0, <em>-</em>]</span>
+<pre>void luaL_setmetatable (lua_State *L, const char *tname);</pre>
+
+<p>
+Sets the metatable of the object at the top of the stack
+as the metatable associated with name <code>tname</code>
+in the registry (see <a href="#luaL_newmetatable"><code>luaL_newmetatable</code></a>).
+
+
+
+
+
 <hr><h3><a name="luaL_openlibs"><code>luaL_openlibs</code></a></h3><p>
 <span class="apii">[-0, +0, <em>e</em>]</span>
 <pre>void luaL_openlibs (lua_State *L);</pre>
@@ -6280,24 +6292,6 @@ <h2>5.1 &ndash; <a name="5.1">Functions and Types</a></h2>
 
 
 
-<hr><h3><a name="luaL_typeerror"><code>luaL_typeerror</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>int luaL_typeerror (lua_State *L, int narg, const char *tname);</pre>
-
-<p>
-Generates an error with a message like the following:
-
-<pre>
-     <em>location</em>: bad argument <em>narg</em> to '<em>func</em>' (<em>tname</em> expected, got <em>rt</em>)
-</pre><p>
-where <code><em>location</em></code> is produced by <a href="#luaL_where"><code>luaL_where</code></a>,
-<code><em>func</em></code> is the name of the current function,
-and <code><em>rt</em></code> is the type name of the actual argument.
-
-
-
-
-
 <hr><h3><a name="luaL_unref"><code>luaL_unref</code></a></h3><p>
 <span class="apii">[-0, +0, <em>-</em>]</span>
 <pre>void luaL_unref (lua_State *L, int t, int ref);</pre>
@@ -7020,8 +7014,6 @@ <h2>6.2 &ndash; <a name="6.2">Coroutine Manipulation</a></h2>
 
 <p>
 Suspends the execution of the calling coroutine.
-The coroutine cannot be running a C&nbsp;function,
-a metamethod, or an iterator.
 Any arguments to <code>yield</code> are passed as extra results to <code>resume</code>.
 
 
@@ -8586,20 +8578,13 @@ <h2>6.8 &ndash; <a name="6.8">Input and Output Facilities</a></h2>
 
 
 <p>
-<hr><h3><a name="pdf-io.lines"><code>io.lines ([filename] [, keepNL])</code></a></h3>
+<hr><h3><a name="pdf-io.lines"><code>io.lines ([filename] &middot;&middot;&middot;)</code></a></h3>
 
 
 <p>
 Opens the given file name in read mode
-and returns an iterator function that,
-each time it is called,
-returns a new line from the file.
-Therefore, the construction
-
-<pre>
-     for line in io.lines(filename) do <em>body</em> end
-</pre><p>
-will iterate over all lines of the file.
+and returns an iterator function that
+works like <code>file:lines(&middot;&middot;&middot;)</code> over the oppened file.
 When the iterator function detects the end of file,
 it returns <b>nil</b> (to finish the loop) and automatically closes the file.
 
@@ -8611,11 +8596,6 @@ <h2>6.8 &ndash; <a name="6.8">Input and Output Facilities</a></h2>
 In this case it does not close the file when the loop ends.
 
 
-<p>
-By default, <code>lines</code> removes the newline at the end of each line.
-If <code>keepNL</code> is <b>true</b>, it will keep the newlines.
-
-
 
 
 <p>
@@ -8750,29 +8730,26 @@ <h2>6.8 &ndash; <a name="6.8">Input and Output Facilities</a></h2>
 
 
 <p>
-<hr><h3><a name="pdf-file:lines"><code>file:lines ([keepNL])</code></a></h3>
+<hr><h3><a name="pdf-file:lines"><code>file:lines (&middot;&middot;&middot;)</code></a></h3>
 
 
 <p>
 Returns an iterator function that,
 each time it is called,
-returns a new line from the file.
+reads the file according to the given formats.
+When no format is given,
+uses "*l" as a default.
 Therefore, the construction
 
 <pre>
-     for line in file:lines() do <em>body</em> end
+     for c in file:lines(1) do <em>body</em> end
 </pre><p>
-will iterate over all lines of the file,
+will iterate over all characters of the file,
 starting at the current position.
 (Unlike <a href="#pdf-io.lines"><code>io.lines</code></a>, this function does not close the file
 when the loop ends.)
 
 
-<p>
-By default, <code>lines</code> removes the newline at the end of each line.
-If <code>keepNL</code> is <b>true</b>, it will keep the newlines.
-
-
 
 
 <p>
@@ -9673,11 +9650,6 @@ <h2>8.2 &ndash; <a name="8.2">Changes in the Libraries</a></h2>
 and it is easy to set up a module with regular Lua code.
 </li>
 
-<li>
-The debug library is not loaded by default.
-You must explicitly require it.
-</li>
-
 <li>
 Functions <code>setfenv</code> and <code>getfenv</code> are deprecated.
 To set the environment of a Lua function,
@@ -9767,8 +9739,8 @@ <h2>8.3 &ndash; <a name="8.3">Changes in the API</a></h2>
 </li>
 
 <li>
-<code>luaL_typerror</code> was renamed <a href="#luaL_typeerror"><code>luaL_typeerror</code></a>,
-to have a correct spelling.
+<code>luaL_typerror</code> was deprecated.
+Write your own version if you need it.
 </li>
 
 <li>
@@ -9873,10 +9845,10 @@ <h1>9 &ndash; <a name="9">The Complete Syntax of Lua</a></h1>
 <HR>
 <SMALL>
 Last update:
-Sat Oct 30 21:36:20 BRST 2010
+Tue Nov 16 09:52:41 BRST 2010
 </SMALL>
 <!--
-Last change: revised for Lua 5.2.0 (work5)
+Last change: revised for Lua 5.2.0 (alpha)
 -->
 
 </body></html>

doc/readme.html

@@ -27,13 +27,13 @@
 <HR>
 <H1>
 <A HREF="http://www.lua.org/"><IMG SRC="logo.gif" ALT="Lua" BORDER=0></A>
-Welcome to Lua 5.2 (work5)
+Welcome to Lua 5.2 (alpha)
 </H1>
 
 <P>
 <IMG SRC="alert.png" ALIGN="absbottom" ALT="[!]">
-<EM>This is a work version of Lua 5.2.
-Everything may change in the final version.</EM>
+<EM>This is an alpha version of Lua 5.2.
+Some details may change in the final version.</EM>
 
 <P>
 <A HREF="#about">about</A>
@@ -323,12 +323,13 @@ <H3>C API</H3>
 <LI> new <CODE>lua_compare</CODE>, <CODE>lua_arith</CODE>, and <CODE>lua_len</CODE>
 <LI> new <CODE>lua_version</CODE> and <CODE>luaL_version</CODE>
 <LI> <CODE>lua_pushstring</CODE> and <CODE>pushlstring</CODE> return string
-<LI> new <CODE>luaL_testudata</CODE>
+<LI> new <CODE>luaL_testudata</CODE> and <CODE>luaL_setmetatable</CODE>
 <LI> new <CODE>luaL_tolstring</CODE>
 <LI> new <CODE>lua_copy</CODE>
 <LI> new <CODE>lua_absindex</CODE>
 <LI> new <CODE>lua_upvalueid</CODE> and <CODE>lua_upvaluejoin</CODE>
 <LI> <CODE>nparams</CODE> and <CODE>isvarag</CODE> available in debug API
+<LI> new <CODE>lua_Unsigned</CODE>
 </UL>
 
 <H3>Implementation</H3>
@@ -337,7 +338,7 @@ <H3>Implementation</H3>
 <LI> internal (immutable) version of ctypes
 <LI> simpler implementation for string buffers
 <LI> udata with finalizers are kept in a separated list for the GC
-<LI> <CODE>CallInfo</CODE>stack now is a linked list
+<LI> <CODE>CallInfo</CODE> stack now is a linked list
 <LI> parser uses much less C-stack space (no more auto arrays)
 <LI> new hash for floats
 <LI> handling of non-string error messages in the standalone interpreter
@@ -390,10 +391,10 @@ <H2><A NAME="license">License</A></H2>
 <HR>
 <SMALL>
 Last update:
-Sat Oct 30 21:36:38 BRST 2010
+Thu Nov 11 15:16:22 BRST 2010
 </SMALL>
 <!--
-Last change: revised for Lua 5.2.0 (work5)
+Last change: revised for Lua 5.2.0 (alpha)
 -->
 
 </BODY>

src/Makefile

@@ -7,7 +7,7 @@
 PLAT= none
 
 CC= gcc
-CFLAGS= -O2 -Wall $(MYCFLAGS)
+CFLAGS= -O2 -Wall -DLUA_COMPAT_ALL $(MYCFLAGS)
 LIBS= -lm $(MYLIBS)
 
 AR= ar rcu
@@ -97,7 +97,7 @@ freebsd:
 generic: $(ALL)
 
 linux:
-	$(MAKE) $(ALL) MYCFLAGS="-DLUA_USE_LINUX" MYLIBS="-Wl,-E -ldl -lreadline -lncurses"
+	$(MAKE) $(ALL) MYCFLAGS="-DLUA_USE_LINUX" MYLIBS="-Wl,-E -ldl -lreadline"
 
 macosx:
 	$(MAKE) $(ALL) MYCFLAGS="-DLUA_USE_MACOSX" MYLIBS="-lreadline"

src/lapi.c

@@ -1,5 +1,5 @@
 /*
-** $Id: lapi.c,v 2.139 2010/10/25 20:31:11 roberto Exp $
+** $Id: lapi.c,v 2.140 2010/11/03 15:16:17 roberto Exp $
 ** Lua API
 ** See Copyright Notice in lua.h
 */
@@ -353,7 +353,7 @@ LUA_API lua_Unsigned lua_tounsignedx (lua_State *L, int idx, int *isnum) {
   if (tonumber(o, &n)) {
     lua_Unsigned res;
     lua_Number num = nvalue(o);
-    lua_number2uint(res, num);
+    lua_number2unsigned(res, num);
     if (isnum) *isnum = 1;
     return res;
   }
@@ -472,7 +472,7 @@ LUA_API void lua_pushinteger (lua_State *L, lua_Integer n) {
 LUA_API void lua_pushunsigned (lua_State *L, lua_Unsigned u) {
   lua_Number n;
   lua_lock(L);
-  n = lua_uint2number(u);
+  n = lua_unsigned2number(u);
   setnvalue(L->top, n);
   api_incr_top(L);
   lua_unlock(L);