Pretty up the CLI with ansi escape codes
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1BE5172E637709C2
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@ -59,9 +59,9 @@ To render a 3D maze as a .STL file, do this:
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```bash
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# Generate the OpenSCAD file
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lua main.lua maze3d_openscad -w 91 -h 91 -d 71 -f 91x91x71.scad
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lua main.lua maze3d_openscad -w 15 -h 15 -d 17 -f 15x15x17.scad
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# Convert the OpenSCAD file to an STL
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openscad -o 91x91x71.stl 91x91x71.scad
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openscad -o 15x15x17.stl 15x15x17.scad
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```
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58
main.lua
58
main.lua
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@ -1,3 +1,4 @@
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local a = require("./utils/ansi")
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local strings = require("./utils/strings")
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local debug = require("./utils/print_r")
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local calculations = require("./utils/calculations")
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@ -5,6 +6,12 @@ local maze2d = require("./maze")
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local maze3d = require("./maze3d")
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local openscad = require("./openscad")
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-- ANSI escape sequence helpers
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function a.header(str) return a.fblue(a.hicol(str)) end
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function a.item(str) return a.fyellow(str) end
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function a.value(str) return a.fgreen(str) end
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local settings = {
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mode = "help",
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extras = {},
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@ -65,29 +72,35 @@ end
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local function help()
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print([[
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multimaze: Multidimensional maze generator
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By Starbeamrainbowlabs
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]]..a.fgreen(a.hicol("multimaze: "))..a.fyellow(a.hicol("Multidimensional maze generator"))..[[
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Usage:
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lua main.lua {mode} [{options}]
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]]..a.locol("By Starbeamrainbowlabs")..[[
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Modes:
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help Displays this message
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maze Generates a 2d maze
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maze3d Generates a 3d maze
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maze3d_openscad Generates a 3d maze as an openscad file
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Options:
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-w --width {int} Sets the width of the maze
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-h --height {int} Sets the height of the maze
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-d --depth {int} Sets the depth of the maze [3d only]
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-s --seed {string} Sets the seed
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-f --filename {string} Sets the output filename
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--no-invert Don't invert the output [openscad output only]
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--scale {int} Sets the scale of the output [openscad output only]
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--path-length {int} Sets the path length
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--path-width {int} Sets the path width
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--path-depth {int} Sets the path depth [3d only]
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]]..a.header("Usage:")..[[
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lua main.lua ]]..a.item("{mode} [{options}]")..[[
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]]..a.header("Modes:")..[[
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]]..a.item("help")..[[ Displays this message
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]]..a.item("maze")..[[ Generates a 2d maze
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]]..a.item("maze3d")..[[ Generates a 3d maze
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]]..a.item("maze3d_openscad")..[[ Generates a 3d maze as an openscad file
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]]..a.header("Options:")..[[
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]]..a.item("-w --width")..a.value(" {int}")..[[ Sets the width of the maze
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]]..a.item("-h --height")..a.value(" {int}")..[[ Sets the height of the maze
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]]..a.item("-d --depth")..a.value(" {int}")..[[ Sets the depth of the maze [3d only]
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]]..a.item("-s --seed")..a.value(" {string}")..[[ Sets the seed
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]]..a.item("-f --filename")..a.value(" {string}")..[[ Sets the output filename
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]]..a.item("--no-invert")..[[ Don't invert the output [openscad output only]
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]]..a.item("--scale")..a.value(" {int}")..[[ Sets the scale of the output [openscad output only]
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]]..a.item("--path-length")..a.value(" {int}")..[[ Sets the path length
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]]..a.item("--path-width")..a.value(" {int}")..[[ Sets the path width
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]]..a.item("--path-depth")..a.value(" {int}")..[[ Sets the path depth [3d only]
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]])
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end
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@ -141,7 +154,7 @@ local function maze3d_openscad()
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settings.filename,
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openscad_settings
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)
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print("Maze written to "..settings.filename)
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print("Maze written to "..a.fgreen(a.hicol(settings.filename)))
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end
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local mode_functions = {
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@ -153,7 +166,8 @@ local mode_functions = {
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local selection = mode_functions[settings.mode]
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if not selection then
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print("Error: Unrecognised mode '"..settings.mode.."'")
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print(a.fred(a.hicol("Error: Unrecognised mode '"..a.FBLE..settings.mode..a.FRED.."'")))
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print()
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selection = mode_functions["help"]
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end
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@ -0,0 +1,97 @@
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--[[
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VT100 ANSI escape sequences.
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Ported from the Lantern Build Engine, which si written in Bash.
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Other versions:
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- Bash, in the Lantern Build Engine: https://gitlab.com/sbrl/lantern-build-engine/-/blob/master/lantern.sh
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- Javascript: massCode/Ansi.mjs
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- C♯: massCode/Ansi.cs
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Changelog:
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6th September 2020:
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Initial release - port complete!
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]]--
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local ansi
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if os.getenv("NO_COLOR") ~= nil then
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ansi = {
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RS = "",
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HC = "",
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UL = "",
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INV = "",
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LC = "",
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FBLK = "",
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FRED = "",
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FGRN = "",
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FYEL = "",
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FBLE = "",
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FMAG = "",
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FCYN = "",
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FWHT = "",
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BBLK = "",
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BRED = "",
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BGRN = "",
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BYEL = "",
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BBLE = "",
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BMAG = "",
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BCYN = "",
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BWHT = "",
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}
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else
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ansi = {
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RS = "\27[0m", -- reset
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HC = "\27[1m", -- hicolor
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UL = "\27[4m", -- underline
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INV = "\27[7m", -- inverse background and foreground
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LC = "\27[2m", -- locolor / dim
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FBLK = "\27[30m", -- foreground black
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FRED = "\27[31m", -- foreground red
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FGRN = "\27[32m", -- foreground green
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FYEL = "\27[33m", -- foreground yellow
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FBLE = "\27[34m", -- foreground blue
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FMAG = "\27[35m", -- foreground magenta
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FCYN = "\27[36m", -- foreground cyan
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FWHT = "\27[37m", -- foreground white
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BBLK = "\27[40m", -- background black
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BRED = "\27[41m", -- background red
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BGRN = "\27[42m", -- background green
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BYEL = "\27[43m", -- background yellow
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BBLE = "\27[44m", -- background blue
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BMAG = "\27[45m", -- background magenta
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BCYN = "\27[46m", -- background cyan
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BWHT = "\27[47m", -- background white
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-- Invalid escape sequence, apparently - we'll need to look into how to do it properly
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-- Perhaps knowing the hex code for the character we want would be helpful
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-- URL_START = '\e]8;;',
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-- URL_DISPLAY_TEXT = '\e\\',
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-- URL_END = '\e]8;;\e\\'
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}
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end
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function ansi.wrap(str, start)
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return start..str..ansi.RS
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end
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function ansi.hicol(str) return ansi.wrap(str, ansi.HC) end
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function ansi.locol(str) return ansi.wrap(str, ansi.LC) end
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function ansi.uline(str) return ansi.wrap(str, ansi.UL) end
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function ansi.invert(str) return ansi.wrap(str, ansi.INV) end
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function ansi.fblack(str) return ansi.wrap(str, ansi.FBLK) end
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function ansi.fred(str) return ansi.wrap(str, ansi.FRED) end
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function ansi.fgreen(str) return ansi.wrap(str, ansi.FGRN) end
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function ansi.fyellow(str) return ansi.wrap(str, ansi.FYEL) end
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function ansi.fblue(str) return ansi.wrap(str, ansi.FBLE) end
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function ansi.fmagenta(str) return ansi.wrap(str, ansi.FMAG) end
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function ansi.fcyan(str) return ansi.wrap(str, ansi.FCYN) end
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function ansi.fwhite(str) return ansi.wrap(str, ansi.FWHT) end
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function ansi.bblack(str) return ansi.wrap(str, ansi.FBLK) end
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function ansi.bred(str) return ansi.wrap(str, ansi.BRED) end
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function ansi.bgreen(str) return ansi.wrap(str, ansi.BGRN) end
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function ansi.byellow(str) return ansi.wrap(str, ansi.BYEL) end
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function ansi.bblue(str) return ansi.wrap(str, ansi.BBLE) end
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function ansi.bmagenta(str) return ansi.wrap(str, ansi.BMAG) end
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function ansi.bcyan(str) return ansi.wrap(str, ansi.BCYN) end
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function ansi.bwhite(str) return ansi.wrap(str, ansi.BWHT) end
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return ansi
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