Android Question How to work with mixed ascii and hex string

[billyrudi]

Hi,
how i can remove all non printable chars from a string to obltain only readible chars?
the string came from a socket stream


regards Paolo

 

[sorex]

what is printable and what not?

 

[billyrudi]

https://en.wikipedia.org/wiki/Control_character

 

[billyrudi]

 

[sorex]

maybe there's another way but this might work for you

    Dim t As String="ÂPÊrÎiÔn"& CRLF &"ÛtŶ"& TAB &"aĈbĜlĤeĴ ŜoŴnẐlẐy"
    Dim po As String
    Dim c As Int   
    For x=0 To t.Length-1       
        c=Asc(t.CharAt(x))
        If c>0x20 And c<0x80 Then po=po & Chr(c)
    Next
    Log(po)

Waiting for debugger to connect...
Program started.
Printableonly

 

[Erel]

1. You should edit the thread and change the title to a relevant title.

2. If you are working with a limited range of characters then it is possible to implement a simple check like @sorex did (though it is better to use StringBuilder). Catching all the possible non-printable characters will be more difficult.