Dear all,
I'm trying to implement a very simple filter mechanism in lua like this:
\def\test#1{%
\startlua
local pipe, str
pipe = io.popen("./my_filter '\luaescapestring{#1}'", "r")
str = pipe:read("*a")
tex.print(str)
pipe:close()
\stoplua
}
\test{%
line 1
line 2
}
The issue I have is that the argument of test has its line breaks
removed in the process (i.e. the filter my_filter sees a single line
argument). How to prevent this while keeping the lua escape at the same
time? (I know I can implement such a thing with executecommand and using
buffers written to files, but I would like to avoid writing on the hard disk.)
Olivier
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