Re: [Proposal] Lua-y lambda syntax

[Luiz Henrique de Figueiredo <lhf@...>]

The token filter below can be used with my ltokenp to convert 

	fct = λ (a,b,c) â?? 10*(10*a+b)+c â?ª

to 

	fct = function ( a , b , c ) return 10 * ( 10 * a + b ) + c end

-- token filter: handle utf symbols as keywords

local function emit(x)
	io.write(x," ")
end

local acc=""

local convert={
	["\xce\xbb"] = "function",
	["\xe2\x86\x92"] = "return",
	["\xe2\x96\xaa"] = "end",
}

local function flush()
	if acc~="" then
		emit(convert[acc])
		acc=""
	end
end

function FILTER(line,token,text,value)
	local t=text
	if t=="<file>" or t=="<eof>" then flush() return end
	if t=="<string>" then value=string.format("%q",value) end
	if token>127 and text==value then
		acc=acc..t
	else
		flush()
		emit(value)
	end
end