Wow, I can see how that can reduce the number of lines of code. I will most likely update my code. Thanks for the tips and example. nophead wrote > I see now that your input is a string and you basically want to convert it > to binary. Yes it can be done with much less code. Here is a simple > example: > > function testbit(n, x) = (floor(x / pow(2,n)) % 2) == 1; > > function binary(x, n = 7) = n >= 0 ? str((testbit(n, x) ? "1" : "0"), > binary(x, n - 1)) : ""; > > function asc(c, n = 0) = c == chr(n) ? n : asc(c, n + 1); > > text = "ABCD"; > > for(i = [0 : len(text)-1]) > echo(text[i], binary(asc(text[i]))); > > > ECHO: "A", "01000001" > > ECHO: "B", "01000010" > > ECHO: "C", "01000011" > > ECHO: "D", "01000100" > > > Not very speed efficient as OpenScad seems to lack asc(); > > > On 18 April 2015 at 18:14, Fantome < > paul@ > > wrote: -- View this message in context: http://forum.openscad.org/How-to-detect-chr-0-tp12351p12420.html Sent from the OpenSCAD mailing list archive at Nabble.com.