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Manpages LUACSection: User Commands (1)Updated: 2000/10/06 15:11:21 Index Return to Main Contents NAMEluac - Lua compilerSYNOPSISluac [ options ] [ filenames ]DESCRIPTIONluac is the Lua compiler. It translates programs written in the Lua programming language into binary files that can be loaded and executed with lua_dofile in C or with dofile in Lua.The main advantages of precompiling chunks are: faster loading, protecting source code from user changes, and off-line syntax error detection. Pre-compiling does not imply faster execution because in Lua chunks are always compiled into bytecodes before being executed. luac simply allows those bytecodes to be saved in a file for later execution. luac produces a single output file containing the bytecodes for all source files given. By default, the output file is named luac.out, but you can change this with the -o option. The binary files created by luac are portable to all architectures with the same word size. This means that binary files created on a 32-bit platform (such as Intel) can be read without change in another 32-bit platform (such as Sparc), even if the byte order (``endianess'') is different. On the other hand, binary files created on a 16-bit platform cannot be read in a 32-bit platform. In the command line, you can mix text files containing Lua source and binary files containing precompiled chunks. This is useful to combine several precompiled chunks, even from different (but compatible) platforms, into a single precompiled chunk. You can use - to indicate stdin as a source file. The internal format of the binary files produced by luac may change when a new version of Lua is released. We try to maintain compatibility even for binary files, but it is not always possible. So, save the source files of all Lua programs that you precompile. OPTIONSOptions must be separate.
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SEE ALSOlua(1)http://www.tecgraf.puc-rio.br/lua/ DIAGNOSTICSError messages should be self explanatory.AUTHORSL. H. de Figueiredo, R. Ierusalimschy and W. Celes (lua@tecgraf.puc-rio.br)
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