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[PDF File]Mach4 CNC Controller Lua Scripting Guide
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number image.getfiletypebyext(filename) Return the predeﬁned FREE IMAGE FORMAT constants looking only the ﬁlename extension. Image image.load(filename, FormatID, flag = 0) This function decodes a bitmap, allocates memory for it and then returns it as a Image (Lua UserData/Object). A parameter deﬁnes the type of bitmap to be loaded. For ...
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[PDF File]Lua 5.1 A Short Reference
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lua_pushnumber num push Lua number (double) lua_pushliteral pc string push string literal lua_pushstring pc string push C string lua_pushlstring pc len string push string of given length lua_pushfstring pc fmt string push a sprintf() formatted string and return also pointer to result lua_pushvfstring pc fmt va_list data push a vsprintf() formatted string and return also pointer to result …
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[PDF File]Integers in Lua 5
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The Lua language (v5. 1) ... __tostring sets handler h(a) to convert to string, e.g. for print() __gc sets finalizer h(ud) for userdata (has to be set from C) __mode table mode: 'k' = weak keys; 'v' = weak values; 'kv' = both. __metatable sets value to be returned by getmetatable() The bas e library [no prefix] Environment and global variables getfenv ([f]) if f is a function, returns its ...
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[PDF File]FIBARO System
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2013-08-03 · Scripts in Mach4 are written in the Lua programming language. Users and OEMs can create scripts to accomplish any number of tasks, limite d only by the programmer’s imagination. There are four types of scripts in Mach4: M codes, modules, screen, and panels. M codes, screen scripts and panel scripts are each separate containers for code. They ...
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lua-users wiki: Numbers Tutorial
5 Doubles Integers already present in Lua as second- class values. several library functions use integers (e.g., indices in the string library) conversions not well specified and/or not efficient string.sub(s, -3.4, 8.7) Confusing in the C API conversions always lose bits in some direction BAD
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[PDF File]Lua string format binary
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Lua has been selected as the scripting language of choice because of its speed, compactness, ease of embedding and most of all its gentle learning curve. These characteristics allow the user to create simple scripts right through to advanced programming solutions that a computing science graduate would relish. In other words, Lua has all the depth and sophistication of a modern language, yet ...
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[PDF File]What is Next for Lua?
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deviceID: device ID number propertyName: name of property Returned values String containing current property value Please note that the return value is of type string . When comparing it with a variable of type number , use tonumber to convert it first. Code example fibaro:getModificationTime(deviceID, propertyName) Name
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[PDF File]The Lua language (v5. 1)
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Tries to convert its argument to a number. If the argument is already a number or a string convertible to a number, then tonumber returns this number; otherwise, it returns nil. 21. tostring e Receives an argument of any type and converts it to a string in a reasonable format. For complete control of how numbers are converted, use string.format. 22. 22. type v Returns the type of its only ...
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[PDF File]Lua Standard Libraries
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One or more Lua value arguments to encode, based on Format. Returns the packaged binary Lua String, plus any position because '=' is used in the format. 11.13.1.2. Struct.unpack(format, struct, [begin]) Decods/decodes some Lua values of binary Lua strings such as certain structs. The number of values returned depends on the given format, plus the additional value of the position in which it ...
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[PDF File]Last edit: 07.02.2010 Lua 5.1 C API
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14 Lua and UTF-8 Lua strings work naturally with UTF-8 Literal strings can contain UTF-8 characters as long as text editor allows I/O works naturally with UTF-8 provided OS does not interfere File names and the like depend on the OS Many string-manipulation functions do not work properly with UTF-8 string.char, string.byte, string.upper, string.lower,
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Lua convert string to number