RegEx Array gone crazy?

[Komarto]

Hi,

I am new to autoit and i tried testing the regex match

opt("TrayIconDebug", 1)

    $Array = StringRegExp ( "<test>Tal1</test><test>Tal2</test><test>Tal3</test><test>Tal4</test>", "<(?i)test>(.*)</test><test>(.*)</test><test>(.*)</test><test>(.*)</test(i?)>" ,  1, 1)

    msgbox(0, "Test", UBound($Array)-1)


    for $i = 0 to UBound($Array)-1; I suppose to have 4 loops, why am i getting 5?
        msgbox(0, "RegExp Test with Option 1 - " & $i, $array[$i])
    Next

I used a regex match and i am suppose to have only 4 loops (as showed by the msgbox), But the loop runs 5 times (I get an empty msgbox).

Why is this happening?

Thanks

komar

[Authenticity]

You're lucky it's only 5 - (.*) means match any char which is not a new line (default option) at least 0 or more times so it can be nothing also lol. Try reading not only the help file's explanation of StringRegExp behavior but also the short tutorial under 'String Regular expression' and use the bottom application for testing purpose...

[Komarto]

You're lucky it's only 5 - (.*) means match any char which is not a new line (default option) at least 0 or more times so it can be nothing also lol. Try reading not only the help file's explanation of StringRegExp behavior but also the short tutorial under 'String Regular expression' and use the bottom application for testing purpose...

But its suppose to capture any charecter between the test tags, even if the tag is empty, right?

If so i suppose to get 4 matches, and if i am using ubound -1 i need to get 4 loop and no extra loop with an empty msgbox.

can someone explain the extra loop?

[BrettF]

Try this:

Opt("TrayIconDebug", 1)

$Array = StringRegExp("<test>Tal1</test><test>Tal2</test><test>Tal3</test><test>Tal4</test>", "<(?i)test>(.*?)</(?i)test>", 3, 1)

MsgBox(0, "Test", UBound($Array) - 1)


For $i = 0 To UBound($Array) - 1; I suppose to have 4 loops, why am i getting 5?
    MsgBox(0, "RegExp Test with Option 1 - " & $i, $Array[$i])
Next

Cheers,

Brett

[PsaltyDS]

This was what I came up with to do the same:

#include <Array.au3>

$RET = StringRegExp("<test>Tal1</test><test>Tal2</test><test>Tal3</test><test>Tal4</test>", "(?:<test>)(.*?)(?:</test>)", 3)
$iErrSav = @error
$iExtSav = @extended
If IsArray($RET) Then
    _ArrayDisplay($RET, "$RET")
Else
    ConsoleWrite("Error = " & $iErrSav & "  Extended = " & $iExtSav & @LF)
EndIf