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Diffstat (limited to 'doc/manual.html')
| -rw-r--r-- | doc/manual.html | 46 |
1 files changed, 24 insertions, 22 deletions
diff --git a/doc/manual.html b/doc/manual.html index b220222f..f2de7131 100644 --- a/doc/manual.html +++ b/doc/manual.html @@ -407,22 +407,6 @@ Square brackets are used to index a table: <pre> var ::= prefixexp `<b>[</b>´ exp `<b>]</b>´ </pre><p> -The first expression (<em>prefixexp</em>) should result in a table value; -the second expression (<em>exp</em>) -identifies a specific entry in this table. -The expression denoting the table to be indexed has a restricted syntax; -see <a href="#2.5">§2.5</a> for details. - - -<p> -The syntax <code>var.Name</code> is just syntactic sugar for -<code>var["Name"]</code> and is used to denote table fields: - -<pre> - var ::= prefixexp `<b>.</b>´ Name -</pre> - -<p> The meaning of accesses to global variables and table fields can be changed via metatables. An access to an indexed variable <code>t[i]</code> is equivalent to @@ -434,6 +418,14 @@ We use it here only for explanatory purposes.) <p> +The syntax <code>var.Name</code> is just syntactic sugar for +<code>var["Name"]</code>: + +<pre> + var ::= prefixexp `<b>.</b>´ Name +</pre> + +<p> All global variables live as fields in ordinary Lua tables, called <em>environment tables</em> or simply <em>environments</em> (see <a href="#2.9">§2.9</a>). @@ -1625,7 +1617,7 @@ then Lua tries the second operand. return metatable(op1)[event] or metatable(op2)[event] end </pre><p> -By ysing this function, +By using this function, the behavior of the <code>op1 + op2</code> is <pre> @@ -2299,8 +2291,8 @@ to grow the stack size. <p> -Whenever Lua calls C, <a name="pdf-LUA_MINSTACK"><code>LUA_MINSTACK</code></a> -it ensures that at least <code>LUA_MINSTACK</code> stack positions are available. +Whenever Lua calls C, +it ensures that at least <a name="pdf-LUA_MINSTACK"><code>LUA_MINSTACK</code></a> stack positions are available. <code>LUA_MINSTACK</code> is defined as 20, so that usually you do not have to worry about stack space unless your code has loops pushing elements onto the stack. @@ -5777,6 +5769,10 @@ without invoking any metamethod. and <code>value</code> any Lua value. +<p> +This function returns <code>table</code>. + + <p> @@ -7909,12 +7905,17 @@ then <code>getinfo</code> returns <b>nil</b>. <p> -The returned table contains all the fields returned by <a href="#lua_getinfo"><code>lua_getinfo</code></a>, +The returned table my contain all the fields returned by <a href="#lua_getinfo"><code>lua_getinfo</code></a>, with the string <code>what</code> describing which fields to fill in. -The default for <code>what</code> is to get all information available. +The default for <code>what</code> is to get all information available, +except the table of valid lines. If present, the option '<code>f</code>' adds a field named <code>func</code> with the function itself. +If present, +the option '<code>L</code>' +adds a field named <code>activelines</code> with the table of +valid lines. <p> @@ -7988,6 +7989,7 @@ The function returns <b>nil</b> if there is no upvalue with the given index. <p> Sets the environment of the given <code>object</code> to the given <code>table</code>. +Returns <code>object</code>. @@ -8446,7 +8448,7 @@ can only appear as the <em>last</em> statement of a block. <HR> <SMALL> Last update: -Wed May 31 21:31:40 BRT 2006 +Fri Jun 2 14:33:44 BRT 2006 </SMALL> </body></html> |