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Module:Sandbox/Keyacom/ishexcode
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-- This is for checking if the input is a color hex code. -- Feel free to correct errors, but notify me (Keyacom) on the talk page. local getArgs = require('Module:Arguments').getArgs local p = {} p.ishex = function(frame) local args = getArgs(frame) if string.match(args[1],"#[0-9A-Fa-f][0-9A-Fa-f][0-9A-Fa-f][0-9A-Fa-f][0-9A-Fa-f][0-9A-Fa-f][0-9A-Fa-f][0-9A-Fa-f]$") ~= nil then --[=[ In short, this would be the same as the regex /#([0-9a-f]{3,4}|[0-9a-f]{6}|[0-9a-f]{8})$/i. However, Lua's limitations do not allow for such regexes.]=] return args[2] or true elseif string.match(args[1],"#[0-9A-Fa-f][0-9A-Fa-f][0-9A-Fa-f][0-9A-Fa-f][0-9A-Fa-f][0-9A-Fa-f]$") ~= nil then return args[2] or true elseif string.match(args[1],"#[0-9A-Fa-f][0-9A-Fa-f][0-9A-Fa-f][0-9A-Fa-f]?$") ~= nil then -- in Lua, ? still works on character sets return args[2] or true else return args[3] or "" end end return p
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