How to do language specific validations?

rahulz

Hi,

We have a requirement wherein, the DCTs have to be in English (i.e. all items of a DCT) while the data entered can be in any other language. The issue is how to write the validations (e.g. regex), that cater to a specific laguage needs. To give an example, if the requirement is to restrict only alphanumeric characters in a text box then for English I can write a regex specifying characters like a-z, A-Z and 0-9. But if the same need to be checked for some other language, how can it be done?



Thanks,
Rahul

Adam Stoller

Hi, We have a requirement wherein, the DCTs have to be in English (i.e. all items of a DCT) while the data entered can be in any other language. The issue is how to write the validations (e.g. regex), that cater to a specific laguage needs. To give an example, if the requirement is to restrict only alphanumeric characters in a text box then for English I can write a regex specifying characters like a-z, A-Z and 0-9. But if the same need to be checked for some other language, how can it be done? Thanks, Rahul

A quick search on google turned up this which confirms my assumption that you can best do this with a character-class regex like:

if (strval.match(/^\w+$/)){
    // The string value contains only letters, numbers, and underscores
}
else {
   // some other characters exist in string value
}

Unless you're looking for a single string input value the above would probably be too restrictive as I don't believe it allows for white-space - so you'd need to modify it like:

if (strval.match(/^[\w\s]+$/))

The

+

should probably be replaced with an

*

if you also accept an empty field.

It's unclear (and I haven't tried this out) - but you may need to use double-back-slashes (

\\

) above in place of the single-back-slash shown.