formatting

MoKaLux

Can you please help me? I have this:
local mycolor = 0x0000ff

how can I put it in a string without it being converted to 255? I would like to get 0x0000ff or at least 0000ff. I tried:

print(tostring(mycolor)) -- 255
print(mycolor) -- 255
print(string.format("%q", mycolor)) -- "255"

Thank you.

rrraptor

print( ("0x%06x"):format(math.random(0xffffff)) )

or

print( ("%x"):format(math.random(0xffffff)) )

MoKaLux

thank you

keszegh

this kind of notation is scifi for me, so perhaps you might also prefer:
string.format("%x",0xffffff)
which is the same but written differently.

MoKaLux

true, your example is also perfect thank you keszegh.

rrraptor

keszegh said:

this kind of notation is scifi for me, so perhaps you might also prefer:
string.format("%x",0xffffff)
which is the same but written differently.

It basically means this:

local myString = "0x%06x" -- means print "0x" as regular string, then add converted hex number with 6 leading zeros -- so if you call "print(("%x"):format(0x0000ff))" then you will get just "ff", but with "%06x" result is "0000ff" print(myString:format(0x0000ff)) -- or print(string.format(myString, 0x0000ff))

hgy29

And if you want to write a string as its hex representation:

local s="Hello" print(("%02X"):rep(#s):format(s:byte(1,#s)))

MoKaLux

you read my mind, I wanted to ask the question