stripping chars from a string

[Domitan Redenblack]

What do you think is the best way to "alpha-numericize" a string?

That is, strip all chars except <space>, A_Z, a-z, and 0-9

Or, more generally, have a string of allowable chars 'sKeepChars' ?

Use a loop through the string and lookup each char of it in the sKeepChars?

Any more clever ways for LSL to do it?

 

ty

 

[rebands]

• i like strippping and having sex

[Rolig Loon]

Take a look at this user defined function in the wiki. It may be a nice place to start.  At the very least, it can tell you whether it's even necessary to iterate though an entire string to strip out the non-alphanumerics.  With a little tweaking, it could become your cleaning function too.

[Void Singer]

I use a validation technique in my calculator that may be helpful. it doesn't actually strip characters, but it does provide the potential to do so be eliminating all valid characters in a temp string leaving only invalid ones..

I take a sting, make a temp copy.
the temp copy is parsed to list, removing 8 valid characters as discarded separators, then the list is cast back to string
the process is repeated for each 8 characters to remove, until all valid characters are removed.
if anything is left, it's an invalid character or characters, and could be used to eliminate them from the original string...

the relevant part can be found at the beginning of this script (first four lines after variable declaration)

[Domitan Redenblack]

I ended up just doing a loop

one orig char at a time, checking to see if it is in string " ABCDEFGHIJKLMNOPQRSTUVWXYZabcde.... etc"

that works fine

thanks