[resolved] hex string to bytes

[CommandFusion]

I'm trying to send a string with hex bytes mixed in, denoted as \xFF format
The string value is created using a configuration dialog for an action.

The problem comes when the hex values defined within the string arent converted to their hex bytes, so:

Code: Select all

def __call__(self, Value):
        val = eg.ParseString(Value)
        print(val)
        self.plugin.Push(val)

that doesnt work, but defining a string literal does:

Code: Select all

def __call__(self, Value):
        print("l1=0c\x1Es50=test 1\x0D1c\x1Es50=test 2\x0D\x03")
        self.plugin.Push("l1=0c\x1Es50=test 1\x0D1c\x1Es50=test 2\x0D\x03")

So, how do I get python to magically convert the string within the variable (defined by a configuration dialog) to its hex bytes?

Thanks!

[Pako]

My English is very weak and I might not understand what you need.
Your post is almost incomprehensible to me. Nevertheless, I will be happy to help.
Convert string to hex representation can be as follows:

Code: Select all

import binascii
hexRepr=binascii.b2a_hex(string)

Or as follows:

Code: Select all

def String2hex(string):
    tmp=[]
    for char in string:
        tmp.append("\\x%02X" % ord(char))
    return ''.join(tmp)
hexRepr=String2hex(string)

Pako

[CommandFusion]

This just converts it to a string with all data converted to \xFF format:

\x6C\x31\x3D\x30\x63\x5C\x78\x31\x45\x73\x35\x30\x3D\x74\x65\x73\x74\x20\x31\x5C\x78\x30\x44\x31\x63\x5C\x78\x31\x45\x73\x35\x30\x3D\x74\x65\x73\x74\x20\x32\x5C\x78\x30\x44\x5C\x78\x30\x33

It should print out like the selected line in the attached image, with just the non printable hex chars as squares:

[jinxdone]

The problem is that at some point between the configuration dialog and the action of your plugin the string gets an extra layer of escape characters, like as if it would be input as a raw string. In other words any escape characters '\' in the original string convert into '\\'.

Now, what you should do is take off one layer of this string escaping with string.decode('string_escape').

Code: Select all

def __call__(self, Value):
        val = Value.decode('string_escape')
        val = eg.ParseString(val)
        print(val)
        self.plugin.Push(val)

-jinxdone

[CommandFusion]

THANK YOU! works perfect.

I had tried decode("hex") but obviously wasn't what I was after