Re: [ANN] ltokenp, a token processor for Lua
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- Subject: Re: [ANN] ltokenp, a token processor for Lua
- From: Luiz Henrique de Figueiredo <lhf@...>
- Date: 2017年11月17日 08:46:05 -0200
> Late night thought. I want to implement a way to tell Lua to wrap a
> segment of text and run it as the arguments of os.execute(). Could you
> give me a hint on how I would do that with ltokenp?
ltokenp does not see whitespace. This could be a problem for this application.
If you don't mind putting the text inside quotes, then something like this
works with ltokenp:
`"ls *.lua"
Here is the filter:
-- replace ` with os.execute
function FILTER(line,token,text,value)
local t=text
if t=="<file>" or t=="<eof>" then return end
if t=="<string>" then value=string.format("%q",value) end
if t=="`" then value="os.execute" end
io.write(value," ")
end
> A safe table navigator symbol would be a fun thing to implement too.
What do you mean?