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| - | First and foremost you should get familiar with the [[http://www.lua.org/manual/5.2/manual.html|Lua reference manual]], if you are new to Lua. You will find most basic Lua functionality explained there, as well as a bunch of standard library functions. | + | First and foremost you should get familiar with the [[http://www.lua.org/manual/5.3/manual.html|Lua reference manual]], if you are new to Lua. You will find most basic Lua functionality explained there, as well as a bunch of standard library functions. |
| - | OpenComputers makes an effort to largely emulate the standard library in areas that would usually interact with the host system - that being the I/O library. There are a few differences, which you can look up here: [[api:non-standard-lua-libs|differences in the standard libraries]]. Most notably, the debug library is mostly unavailable, and `load` only accepts text source files, no binary / pre-compiled Lua programs (for security reasons). | + | OpenComputers makes an effort to largely emulate the standard library in areas that would usually interact with the host system - that being the I/O library. There are a few differences, which you can look up here: [[api:non-standard-lua-libs|differences in the standard libraries]]. Most notably, the debug library is mostly unavailable, and `load` only accepts text source files, no binary / pre-compiled Lua programs (for security reasons). |
| - | Note that you now need to `require` all non-standard APIs (including the ones below) before you use them, i.e. all modules not listed in the [[http://www.lua.org/manual/5.2/manual.html|Lua reference manual]]. | + | These standard libraries are available in the global environment and thus are immediately available; meaning they do not need to be loaded in your scripts to be accessible. |
| - | For example, instead of simple going `local rs = component.redstone`, you now need to require the component API, like so: | + | |
| + | * [[api:non-standard-lua-libs#coroutine_manipulation|coroutine]] | ||
| + | * [[api:non-standard-lua-libs#debug|debug]] | ||
| + | * [[api:non-standard-lua-libs#input_and_output_facilities|io]] | ||
| + | * [[api:non-standard-lua-libs#mathematical_functions|math]] | ||
| + | * [[api:non-standard-lua-libs#operating_system_facilities|os]] | ||
| + | * [[api:non-standard-lua-libs#Modules|package]] | ||
| + | * `print` Not a library, but a commonly used standard method for printing text to stdout. | ||
| + | |||
| + | ```lua | ||
| + | print("hello world") | ||
| + | ``` | ||
| + | |||
| + | * [[api:non-standard-lua-libs#string_manipulation|string]] | ||
| + | * [[api:non-standard-lua-libs#table_manipulation|table]] | ||
| + | |||
| + | Custom Libraries | ||
| + | ---------------- | ||
| + | |||
| + | Following is a description of the non-standard libraries, provided for convenience. | ||
| + | |||
| + | Note that you need to `require` all non-standard APIs before you use them, i.e. all modules not listed in the [[http://www.lua.org/manual/5.3/manual.html|Lua reference manual]] nor in [#standard_libraries]. For example, instead of simple going `local rs = component.redstone`, you now need to require the component API, like so: | ||
| ```lua | ```lua | ||
| Line 20: | Line 41: | ||
| local rs = mycomp.redstone | local rs = mycomp.redstone | ||
| ``` | ``` | ||
| - | The same applies for all other APIs listed below (even Sides and Colors). | + | The same applies for all other APIs listed below (even `sides` and `colors`). |
| - | + | ||
| - | Custom Libraries | + | |
| - | ---------------- | + | |
| The standard libraries aside, OpenComputers comes with a couple of additional, built-in libraries. Here is a list of all these libraries. Note that some of these may not be usable depending on your configuration (HTTP) and context (Robot library on computers), but they'll still be there. | The standard libraries aside, OpenComputers comes with a couple of additional, built-in libraries. Here is a list of all these libraries. Note that some of these may not be usable depending on your configuration (HTTP) and context (Robot library on computers), but they'll still be there. | ||
| - | - [[api:buffer|Buffer]]: a Lua `FILE*` API buffer implementation for wrapping streams. | + | - [[api:buffer|buffer]]: a Lua `FILE*` API buffer implementation for wrapping streams. |
| - | - [[api:colors|Colors]]: a global table that allows referencing standard Minecraft colors by name. | + | - [[api:colors|colors]]: a global table that allows referencing standard Minecraft colors by name. |
| - | - [[api:component|Component]]: look-up and management of components attached to the computer. | + | - [[api:component|component]]: look-up and management of components attached to the computer. |
| - | - [[api:computer|Computer]]: information on and interactions with the computer the Lua state is running on. | + | - [[api:computer|computer]]: information on and interactions with the computer the Lua state is running on. |
| - | - [[api:event|Event]]: an event system, often used by libraries, for pulling and registering handlers to signals. | + | - [[api:event|event]]: an event system, often used by libraries, for pulling and registering handlers to signals. |
| - | - [[api:guid|GUID]]: creates long unique identifiers | + | - [[api:guid|guid]]: creates long unique identifier strings in the common 8-4-4-4-12 format. |
| - | - [[api:fileSystem|FileSystem]]: abstracted interaction with file system components. | + | - [[api:fileSystem|filesystem]]: abstracted interaction with file system components. |
| - | - [[api:internet|Internet]]: a wrapper for Internet Card functionality. | + | - [[api:internet|internet]]: a wrapper for Internet Card functionality. |
| - | - [[api:io|IO]]: processing input and output of processes, based on the standard Lua library | + | - [[api:keyboard|keyboard]]: a table of key codes by name and pressed key tracking. |
| - | - [[api:keyboard|Keyboard]]: a table of key codes by name and pressed key tracking. | + | - [[api:note|note]]: converts music notes between their real name, their MIDI code and their frequency |
| - | - [[api:note|Note]]: converts music notes between their real name, their MIDI code and their frequency | + | - [[api:process|process]]: keeps track of running programs and their environments. |
| - | - [[api:os|OS]]: general operating system api, based on the standard Lua library | + | - [[api:rc|rc]]: provides automatic program execution and service management. |
| - | - [[api:package|Package]]: provides cached libraries and special loading. | + | - [[api:robot|robot]]: abstracted access to robot actions. |
| - | - [[api:process|Process]]: keeps track of running programs and their environments. | + | - [[api:serialization|serialization]]: allows serialization of values, e.g. for sending them via the network. |
| - | - [[api:rc|RC]]: provides automatic program execution and service management. | + | - [[api:shell|shell]]: working path tracking and program execution. |
| - | - [[api:robot|Robot]]: abstracted access to robot actions. | + | - [[api:sides|sides]]: a global table that allows referencing sides by name. |
| - | - [[api:serialization|Serialization]]: allows serialization of values, e.g. for sending them via the network. | + | - [[api:term|term]]: provides the concept of the cursor, to read and write from keyboard input and screen output, respectively. |
| - | - [[api:shell|Shell]]: working path tracking and program execution. | + | - [[api:text|text]]: provides text utilities such as tab to space conversion. |
| - | - [[api:sides|Sides]]: a global table that allows referencing sides by name. | + | - [[api:thread|thread]]: provides autonomous and non-blocking cooperative threads. |
| - | - [[api:term|Term]]: provides the concept of the cursor, to read and write from keyboard input and screen output, respectively. | + | - [[api:transforms|transforms]]: provides helpful and advanced table manipulators. |
| - | - [[api:text|Text]]: provides text utilities such as tab to space conversion. | + | - [[api:unicode|unicode]]: provides Unicode aware implementations of some functions in the string library. |
| - | - [[api:transforms|Transforms]]: provides helpful and advanced table manipulators. | + | |
| - | - [[api:unicode|Unicode]]: provides Unicode aware implementations of some functions in the string library. | + | |