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Lua-iconv: performs character set conversions in Lua (c) 2005-09 Alexandre Erwin Ittner <email@example.com> Project page: http://lua-iconv.luaforge.net/ === INTRODUCTION === Lua-iconv is POSIX 'iconv' binding for the Lua Programming Language. The iconv library converts a sequence of characters from one codeset into a sequence of corresponding characters in another codeset. The codesets are those specified in the iconv.new() call that returned the conversion descriptor, cd. Lua-iconv 6 *requires* Lua 5.1. If you are using Lua 5.0, please use the first release (lua-iconv-r1). Details regarding iconv may be obtained from: http://www.opengroup.org/onlinepubs/007908799/xsh/iconv.h.html === LICENSE === Lua-iconv is (c) 2005-09 Alexandre Erwin Ittner <firstname.lastname@example.org> Lua-iconv is copyrighted free software: it can be used for both academic and commercial purposes at absolutely no cost. There are no royalties or GNU-like "copyleft" restrictions. The legal details are below: Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHOR OR COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. If you use this package in a product, an acknowledgment in the product documentation would be greatly appreciated (but it is not required). === DOWNLOAD, COMPILATION AND INSTALLATION === Lua-iconv can be obtained from its LuaForge project page: http://lua-iconv.luaforge.net/ Lua-iconv must be compiled as a shared object and loaded by the Lua interpreter using the new module system in Lua 5.1. If you are using a system with pkg-config (as many Linux distributions and Unix flavors) just fire up your favourite shell, untar the distribution package and type, as root, within the program directory: make install The library will be compiled and installed on the in the correct path (that is defined in lua5.1.pc. Compiling on systems without pkg-config requires manual changes on the Makefile. === LOADING AND INITIALIZATION === Lua-iconv is a shared library that exports a single function called luaopen_iconv that must be called by the Lua interpreter. Lua 5.1 uses the new package system, so you can simply do a require "iconv" call to load up the library (that, of course, must be installed in a directory from package.cpath). === USAGE === cd = iconv.new(to, from) cd = iconv.open(to, from) Opens a new conversion descriptor, from the 'from' charset to the 'to' charset. Concatenating "//TRANSLIT" to the first argument will enable character transliteration and concatenating "//IGNORE" to the first argument will cause iconv to ignore any invalid characters found in the input string. This function returns a new converter or nil on error. nstr, err = cd:iconv(str) Converts the 'str' string to the desired charset. This method always returns two arguments: the converted string and an error code, which may have any of the following values: nil No error. Conversion was succeful. iconv.ERROR_NO_MEMORY Failed to allocate enough memory in the conversion process. iconv.ERROR_INVALID An invalid character was found in the input sequence. iconv.ERROR_INCOMPLETE An incomplete character was found in the input sequence. iconv.ERROR_UNKNOWN There was an unknown error. === EOF ===