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| Original file line number | Diff line number | Diff line change |
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| *lua-ftplugin.txt* Lua file type plug-in for the Vim text editor | ||
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| The Lua [1] file type plug-in for Vim makes it easier to work with Lua source | ||
| code in Vim by providing the following features: | ||
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| - The |'includeexpr'| option is set so that the |gf| (go to file) mapping knows | ||
| how to resolve Lua module names using package.path [2] | ||
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| - The |'include'| option is set so that Vim follows dofile() [3], loadfile() [4] | ||
| and require() [5] calls when looking for identifiers in included files | ||
| (this works together with the |'includeexpr'| option) | ||
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| - An automatic command is installed that runs 'luac -p' when you save your Lua | ||
| scripts. If 'luac' reports any errors they are shown in the quick-fix list | ||
| and Vim jumps to the line of the first error. If 'luac -p' doesn't report | ||
| any errors a check for undefined global variables is performed by parsing | ||
| the output of 'luac -p -l' | ||
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| - '<F1>' on a Lua function or 'method' call will try to open the relevant | ||
| documentation in the Lua Reference for Vim [6] | ||
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| - The |'completefunc'| option is set to allow completion of Lua 5.1 keywords, | ||
| global variables and library members using Control-X Control-U | ||
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| - The |'omnifunc'| option is set to allow dynamic completion of the variables | ||
| defined in all modules installed on the system using Control-X Control-O, | ||
| however it needs to be explicitly enabled by setting the | ||
| |lua_complete_omni| option because this functionality may have undesired | ||
| side effects! When you invoke omni completion after typing 'require '' or | ||
| 'require('' you get completion of module names | ||
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| Screenshot of omni completion, see reference [7] | ||
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| - Several |text-objects| are defined so you can jump between blocks and | ||
| functions | ||
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| - A pretty nifty hack of the matchit plug-in (see |matchit-install|) is | ||
| included: When the cursor is on a 'function' or 'return' keyword the '%' | ||
| mapping cycles between the relevant keywords ('function', 'return', 'end'), | ||
| this also works for branching statements ('if', 'elseif', 'else', 'end') | ||
| and looping statements ('for', 'while', 'repeat', 'until', 'end') | ||
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| =============================================================================== | ||
| *lua-ftplugin-installation* | ||
| Installation ~ | ||
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| Unzip the most recent ZIP archive [8] file inside your Vim profile directory | ||
| (usually this is '~/.vim' on UNIX and '%USERPROFILE%\vimfiles' on Windows), | ||
| restart Vim and execute the command ':helptags ~/.vim/doc' (use ':helptags | ||
| ~\vimfiles\doc' instead on Windows). Now try it out: Edit a Lua script and try | ||
| any of the features documented above. | ||
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| =============================================================================== | ||
| *lua-ftplugin-options* | ||
| Options ~ | ||
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| The Lua file type plug-in handles options as follows: First it looks at buffer | ||
| local variables, then it looks at global variables and if neither exists a | ||
| default is chosen. This means you can change how the plug-in works for | ||
| individual buffers. For example to change the location of the Lua compiler | ||
| used to check the syntax: | ||
| > | ||
| " This sets the default value for all buffers. | ||
| :let g:lua_compiler_name = '/usr/local/bin/luac' | ||
| " This is how you change the value for one buffer. | ||
| :let b:lua_compiler_name = '/usr/local/bin/lualint' | ||
| ------------------------------------------------------------------------------- | ||
| The *lua_path* option | ||
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| This option contains the value of 'package.path' as a string. You shouldn't | ||
| need to change this because the plug-in is aware of $LUA_PATH [2] and if that | ||
| isn't set the plug-in will run a Lua interpreter to get the value of | ||
| package.path [2]. | ||
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| ------------------------------------------------------------------------------- | ||
| The *lua_check_syntax* option | ||
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| When you write a Lua script to disk the plug-in automatically runs the Lua | ||
| compiler to check for syntax errors. To disable this behavior you can set this | ||
| option to false (0): | ||
| > | ||
| let g:lua_check_syntax = 0 | ||
| You can manually check the syntax using the ':CheckSyntax' command. | ||
|
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| ------------------------------------------------------------------------------- | ||
| The *lua_check_globals* option | ||
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| When you write a Lua script to disk the plug-in automatically runs the Lua | ||
| compiler to check for undefined global variables. To disable this behavior you | ||
| can set this option to false (0): | ||
| > | ||
| let g:lua_check_globals = 0 | ||
| You can manually check the globals using the ':CheckGlobals' command. | ||
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| ------------------------------------------------------------------------------- | ||
| The *lua_compiler_name* option | ||
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| The name or path of the Lua compiler used to check for syntax errors (defaults | ||
| to 'luac'). You can set this option to run the Lua compiler from a | ||
| non-standard location or to run a dedicated syntax checker like lualint [9]. | ||
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| ------------------------------------------------------------------------------- | ||
| The *lua_compiler_args* option | ||
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| The argument(s) required by the compiler or syntax checker (defaults to '-p'). | ||
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| ------------------------------------------------------------------------------- | ||
| The *lua_error_format* option | ||
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| If you use a dedicated syntax checker you may need to change this option to | ||
| reflect the format of the messages printed by the syntax checker. | ||
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| ------------------------------------------------------------------------------- | ||
| The *lua_complete_keywords* option | ||
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| To disable completion of keywords you can set this option to false (0). | ||
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| ------------------------------------------------------------------------------- | ||
| The *lua_complete_globals* option | ||
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| To disable completion of global functions you can set this option to false | ||
| (0). | ||
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| ------------------------------------------------------------------------------- | ||
| The *lua_complete_library* option | ||
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| To disable completion of library functions you can set this option to false | ||
| (0). | ||
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| ------------------------------------------------------------------------------- | ||
| The *lua_complete_dynamic* option | ||
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| When you type a dot after a word the Lua file type plug-in will automatically | ||
| start completion. To disable this behavior you can set this option to false | ||
| (0). | ||
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| ------------------------------------------------------------------------------- | ||
| The *lua_complete_omni* option | ||
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| This option is disabled by default for two reasons: | ||
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| - The omni completion support works by enumerating and loading all installed | ||
| modules. If module loading has side effects this can have unintended | ||
| consequences! | ||
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| - Because all modules installed on the system are loaded, collecting the | ||
| completion candidates can be slow. After the first run the completion | ||
| candidates are cached so this will only bother you once (until you restart | ||
| Vim). | ||
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| If you want to use the omni completion despite the warnings above, execute the | ||
| following command: | ||
| > | ||
| :let g:lua_complete_omni = 1 | ||
| Now when you type Control-X Control-O Vim will hang for a moment, after which | ||
| you should be presented with an enormous list of completion candidates :-) | ||
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| =============================================================================== | ||
| *lua-ftplugin-contact* | ||
| Contact ~ | ||
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| If you have questions, bug reports, suggestions, etc. the author can be | ||
| contacted at peter@peterodding.com. The latest version is available at | ||
| http://peterodding.com/code/vim/lua-ftplugin and http://github.com/xolox/vim-lua-ftplugin. | ||
| If you like this plug-in please vote for it on Vim Online [10]. | ||
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| =============================================================================== | ||
| *lua-ftplugin-license* | ||
| License ~ | ||
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| This software is licensed under the MIT license [11]. Copyright 2011 Peter | ||
| Odding <peter@peterodding.com>. | ||
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| =============================================================================== | ||
| *lua-ftplugin-references* | ||
| References ~ | ||
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| [1] http://www.lua.org/ | ||
| [2] http://www.lua.org/manual/5.1/manual.html#pdf-package.path | ||
| [3] http://www.lua.org/manual/5.1/manual.html#pdf-dofile | ||
| [4] http://www.lua.org/manual/5.1/manual.html#pdf-loadfile | ||
| [5] http://www.lua.org/manual/5.1/manual.html#pdf-require | ||
| [6] http://www.vim.org/scripts/script.php?script_id=1291 | ||
| [7] http://peterodding.com/code/vim/lua-ftplugin/screenshots/omni-completion.png | ||
| [8] http://peterodding.com/code/vim/downloads/lua-ftplugin.zip | ||
| [9] http://lua-users.org/wiki/LuaLint | ||
| [10] http://www.vim.org/scripts/script.php?script_id=3625 | ||
| [11] http://en.wikipedia.org/wiki/MIT_License | ||
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| vim: ft=help |
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