File lines

[Davman]

Any way to read the total amount of lines in a file?

I.e, without scanning through each line and increasing a variable until EOF.

[Davman]

come on, i know you guys want to answer this before i leave work today...

[Davman]

Anyone got any ideas, or should this be put onto the wishlist?

[sugi]

There's no easier way than to read the whole file and count the lines while reading... so there is no sense in putting this on the wishlist. Of course this would be a bit faster when it was builtin but I don't think the small difference will matter.

Func FileCountLines($File)
    Local $FH, $Lines = -1
    $FH = FileOpen($File, 0)
    If $FH = -1 Then
        SetError(1)
        Return 0
    EndIf
    SetError(0)
    While Not @error
        $Lines = $Lines + 1
        FileReadLine($FH)
    Wend
    SetError(0)
    Return $Lines
EndFunc  ;==>FileCountLines

[Davman]

Yeah, i ended up writing it like that in the end.

[Andre]

Hi,

I Think that technically it's not possible to do it another way

[Davman]

mmm... but it could be a built in function... if (like me), you have written in languages (if you want to call it that) like the mIRC scripting language, you know of the $lines() identifier, which will give you the amount of lines in a file.

[Valik]

But the problem is, if it's built in, it'll look identical (Except using C's syntax). Something that simple, surely, can be left up to the script-writer to write. Besides, there is a function in the standard library called _FileCountLInes which already does this (I think this is included in the latest stable build, as well).