26 lines
680 B
Lua
Executable file
26 lines
680 B
Lua
Executable file
#!/usr/bin/env lua
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-- vim: set noexpandtab tabstop=3 :miv --
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local ansicolors = require 'ansicolors'
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local lpeg = require 'lpeg'
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local colors = { 'red', 'green', 'yellow', 'blue', 'magenta', 'cyan' }
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local function uncase(str)
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local p = lpeg.P(0)
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for char in str:gmatch('.') do
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p = p * (lpeg.P(char:upper()) + lpeg.P(char:lower()))
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end
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return p
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end
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local pattern = lpeg.P(false)
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for i=1, select('#', ...) do
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pattern = pattern + uncase(select(i, ...)) / function(capture) return ansicolors('%{'..colors[(i-1)%#colors+1]..' underline}'..capture) end
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end
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pattern = lpeg.Cs((pattern + lpeg.P(1)) ^ 1)
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for line in io.stdin:lines() do
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print(pattern:match(line) or '')
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end
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