This add ‘\0’ zerro padding
function zero_padding_add(data, blocksize)
local pad = blocksize - math.fmod(#data, blocksize)
return data .. string.rep('\0', pad)
end
and how i remove it ? this don`t work
function zero_padding_remove(data)
return string.gsub(data, "\0", '')
end
analog in php
rtrim($data, "\0");
\ is an escape character. Instead of “\0” in your gsub, try “\\0”.
Edit: turns out it’s an escape character in the forum too, had to do three \ to display two of them!
string.gsub(data, '%z', '')
%z Zero character (0)
How i make made mark this topic is complete?
The question turned out to be simple - but not googled (((
You can edit the title of your original post and put (SOLVED) at the end.
Happy to hear that you figured it out! It’s documented in the official Lua manual in the patterns chapter:
https://www.lua.org/pil/20.2.html
%z the character with representation 0
