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| Version 5.0 |
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License: Other Open Source License
Updated: February 14, 2004
Source: Source Included and Available Separately
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Changes from version 4.0 to 5.0
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Language:
- lexical scoping.
- Lua coroutines.
- standard libraries now packaged in tables.
- tags replaced by metatables and tag methods replaced by metamethods, stored in metatables.
- proper tail calls.
- each function can have its own global table, which can be shared.
- new __newindex metamethod, called when we insert a new key into a table.
- new block comments: --[[ ... ]].
- new generic for.
- new weak tables.
- new boolean type.
- new syntax "local function".
- (f()) returns the first value returned by f.
- {f()} fills a table with all values returned by f.
- \n ignored in [[\n .
- fixed and-or priorities.
- more general syntax for function definition (e.g. function a.x.y:f()...end).
- more general syntax for function calls (e.g. (print or write)(9)).
- new functions (time/date, tmpfile, unpack, require, load*, etc.).
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API:
- chunks are loaded by using lua_load; new luaL_loadfile and luaL_loadbuffer.
- introduced lightweight userdata, a simple "void*" without a metatable.
- new error handling protocol: the core no longer prints error messages; all errors are reported to the caller on the stack.
- new lua_atpanic for host cleanup.
- new, signal-safe, hook scheme. Implementation:
- new license: MIT.
- new, faster, register-based virtual machine.
- support for external multithreading and coroutines.
- new and consistent error message format.
- the core no longer needs "stdio.h" for anything (except for a single use of sprintf to convert numbers to strings).
- lua.c now runs the environment variable LUA_INIT, if present. It can be "@filename", to run a file, or the chunk itself.
- support for user extensions in lua.c. sample implementation given for command line editing.
- new dynamic loading library, active by default on several platforms.
- safe garbage-collector metamethods.
- precompiled bytecodes checked for integrity (secure binary dostring).
- strings are fully aligned.
- position capture in string.find.
- read('*l') can read lines with embedded zeros.
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Intel Version - requires R5 (408 KB) |
317 downloads |
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