Hex or character replacements

[oldskooldrew]

Was wondering if anyone knew of any documentation of which ascii or hex values come out as a (.) on hex editors, if anyone has this, or knows where i can find out please.

[K]

Pretty sure it depends on what the hex editor decides is "printable."  all characters less than 0x21 are pretty much non printable.

[Yoni]

Rather less than 0x20, since 0x20 is the space.

The printable range is: 0x20 - 0x7e.

0x00 (0x01) - 0x1f are low ASCII. (Not sure whether 0 is included, that's probably a semantics issue.) These are "control" characters, such as 0x09 tab (\t), 0x0d carriage return (\r), 0x0a line feed (\n), 0x07 beep (\a), etc.

0x7f - 0xff are high ASCII. Mostly undefined, but can be used for a 2nd language (with an appropriate codepage loaded).

[MyndFyre]

0x7f - 0xff are high ASCII. Mostly undefined, but can be used for a 2nd language (with an appropriate codepage loaded).

Back in the days of DOS, we also used 0x7f to 0xff as the "DOS Extended Character Set," which consisted largely of text-style drawing characters used in menuing and "graphics" systems.

[Yoni]

Back in the days of DOS, we also used 0x7f to 0xff as the "DOS Extended Character Set," which consisted largely of text-style drawing characters used in menuing and "graphics" systems.

And of course...

C:\>mode con cp prepare=972
C:\>mode con cp select=972

==> Hebrew chars in high ASCII.

[drivehappy]

I would like to point out that http://asciitable.com/ is a good resource if you need to lookup values.

[oldskooldrew]

ok, thanks that website helped a lot, now how would i create a function that replaced all the values that i want to be (.) without making a long function searching for each character or characters hex? is this possible?

[MyndFyre]

ok, thanks that website helped a lot, now how would i create a function that replaced all the values that i want to be (.) without making a long function searching for each character or characters hex? is this possible?

Oh I don't know.  Maybe we can try this novel little idea called programming:

The printable range is: 0x20 - 0x7e.

Code Select Expand


If val > &H1F And Val < &H7E Then
'  Print ASCII value
Else
'  Print "."
End If


Whoo.  I don't want to work my mind too much.

(If you need help translating that to another language or with other identifiers, let us know).

[Adron]

Oh I don't know.  Maybe we can try this novel little idea called programming:

The printable range is: 0x20 - 0x7e.

Code Select Expand


If val > &H1F And Val < &H7E Then
'  Print ASCII value
Else
'  Print "."
End If


Whoo.  I don't want to work my mind too much.

Yeah, be careful working your mind too much, and avoid these difficult problems. They require a lot of thinking to get them right. It's very easy to mess up. We all love tildes, right?

[Banana fanna fo fanna]

hi i typd dat into da vb thing and it said an error HELP WAHTS RONG@!#!?