how to delete special characters from text ?

[Kurien Eapen]

I wanted to eliminate the special characters from a list please help.  

[oaltair]

Could you be more explicit?  

Thanks!

[Kurien Eapen]

I actually want to eliminate the special characters like  -,*,&,(,)<,?....etc from a piece of text . The purpose is to compare two text but i have to eliminate special characters in one of them .

[Abraham Getzler]

I have attached a screen shot of a special purpose routine to

change all occurrences of hex FEFF (a Byte Order Marker) to blank

in a string.  

This would help you only if you know in advance what you want to strip.

If you want to remove all unreadable characters from a string,

try this code ...

VALID_Chars = " 0123456789abcdefg...xyzABCD...XYZ"

FOR I = 1 to length(inputstring)

   IF NOT(CONTAINS(VALID_Chars,segment(inputstring,I,1)) THEN

        REPLACE(inputstring,I," ")

end FOR

If you want to do it to a list, do it to each element of the list

one by one.

[Scott Ferguson]

Here is one way to do it both with and without a space character:

---

sf

[Kurien Eapen]

Thanks Abraham Getzler for the reply, i will surely try. 

[Kurien Eapen]

Thanks Scott Ferguson , your code seems to be much more simpler , i'm just a beginner .I've only learnt App Inventor for 6 weeks from a course in Edx by TrinityX so i'm just getting a hang of it .