Check Latin characters in form

nikosdra · June 14th, 2003, 09:34 AM

Hello all

Does anybody know how can I check if my users have used Latin characters in the submitted form, or else give them a message that they have to fill in the form with Latin characters only?

Thanks in advance

Nikos

nikosdra · June 19th, 2003, 12:10 PM

This place DOES NOT WORK!!!

p2p used to be a great community, where i could get answers within minutes.

Pitty........

bluckcuck · June 19th, 2003, 12:35 PM

Rather than assuming no one is here or reading your post, maybe instead it's that nobody has an answer for your question.

Would it be more helpful if we posted responses saying we don't know?

Bruce Luckcuck
Director, Applications & Support Services
Wiley Publishing, Inc.

nikosdra · June 20th, 2003, 05:41 AM

No, dont reply anything. I can figure out that nobody knows.

I just remember that previously, it just never happend in my (hundreds of) questions.

Pitty again....

bluckcuck · June 27th, 2003, 06:08 PM

Quote:

quote:Originally posted by nikosdra
Hello all

Does anybody know how can I check if my users have used Latin characters in the submitted form, or else give them a message that they have to fill in the form with Latin characters only?

Thanks in advance

Nikos

Well I don't know any ASP check specifically geared towards checking only latin characters. You could loop through the characters from the text input and validate that they're all within the range you want.

Here's an example that checks for A-Z,a-z,0-9 and spaces:

Code:

dim i
dim badChar
dim stringToCheck
dim ch

stringToCheck=Request.Form("textinput") ' where textinput is your form field name
badChar=false

i=1
while i<=len(stringToCheck) and not(badChar)
    ch=lcase(mid(stringToCheck,i,1))
    if not((ch >= "a" and ch <= "z") or (ch >= "0" and ch <= "9") or (ch=" ")) then
        badChar=true
    end if
    i=i+1
wend

if badChar then
    ' Report an error
end if

If you wanted to check for additional characters, simply add an additional or clause for those characters to the character check.

This could also probably be done more efficiently with regular expressions but I don't have the time to look it up right now.

Bruce Luckcuck
Director, Applications & Support Services
Wiley Publishing, Inc.