98 lines
3 KiB
Lua
98 lines
3 KiB
Lua
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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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