StrComp not working on some systems

General
1

I have a very strange issue.
I use StrComp to see if a string contains lower case chars or not.
I do this:

var t as string = “Aef6V”
if StrComp( t , Uppercase(t) , 0) = 0 then
msbox "Does not contain lowercase chars’
else
msgbox "Does contain lowercase chars’.

On a users computer (I think he is chinees), the above returns it does not contain lowercase chars. But it should.

Any ideas why?
end

2

Probably something related to Locale, Unicode and Xojo i18n internals that only Xojo could know.
MAYBE the Uppercase(t) fails and returns the same value as t because his Locale.

3

I would consider that a bug, not?

Is there another way to check this (check for lowercase chars)?

4

I would say it may be. You must to get a way to reproduce it. Find his locale and try to mimic his system. Once you have a mean to reproduce it, open a bug report.

Have in mind that “lower case chars” can vary depending on the language. â is lower case for  and probably the utf solution on the Xojo side would be the best way of doing it. But one way could be using a regex looking for a list of those lowercase chars like [a-záãâ…] (incomplete)

5

There are unicode-savvy tokens. I think it’s \p{Ll} but would have to check later.

Unicode normalization might help here too.

6

That may be the case but in this case it isn’t.
The string is Aef6V
If you declare a string and set it to Aef6V, it shouldn’t matter on what device/location/encoding … the above Strcmp should work fine (but it doesn’t).

7

@Kem: I know you are a guru with RegEx. :slight_smile: Is there a way to use RegEx to see if a string has lowercase chars?

8

Do you want to check if a string is exactly equal to this string only?

have you tried an API2 approach e see if it bugs too?

Var token As String = "Aef6V"
Var anotherString As String = "AEf6v" // differs

If token.Compare(anotherString, ComparisonOptions.CaseSensitive) = 0 Then
  MessageBox "it matches"
Else
  MessageBox "it differs"
End
9

I’ll let you both looking for the perfect regex here. I know that Kem will find the best one possible. :wink:

10

Kem will but you have to ask in Klingon:

'ej qeylIS Dalo’chugh yInejQo’chugh,

11

veng Sup lengtaHvIS

12

I think you missed my previous post, but here it is in detail.

var rx as new RegEx
rx.SearchPattern = "\p{Ll}"
if rx.Search( token ) isa RegExMatch then
  // has lowercase
end if

(The pattern is right, but excuse typos in the code.)

1 Like
13

Thanks Kem! (Yes, missed the previous answer - sorry about that).