Strip control codes and extended characters from a string: Difference between revisions

=={{header|Lua}}==

<lang lua>function Strip_Control_Codes( str )

local s = ""

for i in str:gmatch( "%C+" ) do

s = s .. i

end

return s

end

function Strip_Control_and_Extended_Codes( str )

local s = ""

for i = 1, str:len() do

if str:byte(i) >= 32 and str:byte(i) <= 126 then

s = s .. str:sub(i,i)

end

end

return s

end

q = ""

for i = 0, 255 do

q = q .. string.char(i)

end

print( Strip_Control_Codes(q) )

print( Strip_Control_and_Extended_Codes(q) )</lang>

<pre> !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ

!"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~</pre>