1. Re: find if any memers of a set are in another set (blank line fi nder)?
Derek,
Ok, enough people have said "check each for non white-space" is faster, so
I'll use that. My thought was that if there was a way to do it in a native
Euphoria routine that it would be fastest, 'cause it might be doing that
very same check but in c code. Thanks.
Dan
----- Original Message -----
From: "Derek Parnell" <Derek.Parnell at SYD.RABOBANK.COM>
To: "EUforum" <EUforum at topica.com>
Subject: RE: find if any memers of a set are in another set (blank line fi
nder)?
>
> Dan,
> the fastest is just to check each character until you get a non-whitespace
> one.
>
>
> -------
> sequence x
>
> x = {
> " ",
> " \t \n\r",
> " a",
> "a ",
> ""
> }
>
> atom e
> e =time()
> for j = 1 to 1000000 do
> for i = 1 to length(x) do
>
> for k = 1 to length(x[i]) do
> if find(x[i][k], " \n\t\r") = 0 then
> exit
> end if
> end for
> end for
>
> end for
>
> printf(1, "%f", time()-e)
> ------------
>
> This takes about 4.5 seconds on my machine.
>
> > -----Original Message-----
> > From: Dan Moyer [mailto:DANIELMOYER at prodigy.net]
> > Sent: Thursday, 18 July 2002 23:11
> > To: EUforum
> > Subject: Re: find if any memers of a set are in another set
> > (blank line
> > finder)?
> >
> >
> > I haven't tested this yet against text read in from a file,
> > but it seems
> > like it *might* work, does anyone have any thing
> > better/faster? When I put
> > a tab in sequence "a" below, it didn't like that, but I think
> > a tab in a
> > file might be different?
> >
> > Dan Moyer
> >
> > <code begins>
> > sequence a, b
> > a = " "
> > b = "this is a line of text!"
> >
> > function IsBlankLine(sequence aLine)
> > sequence w,x
> > w = aLine
> > x = w
> > w = w > 32 -- catches any characters *less* than 33
> > x = w < 126 -- catches any characters more than 126
> > w = w and x
> >
> > if find(1,w) then
> > return 0 -- no, is *not* blank line
> > else
> > return 1 -- yes, is blank line
> > end if
> > end function
> >
> > if IsBlankLine(a) = 1 then
> > puts(1, "yes, \"" & a & "\" is a blank line")
> > else
> > puts(1, "no, \"" & a & "\" is not a blank line")
> > end if
> > puts(1, "\n")
> > if IsBlankLine(b) = 1 then
> > puts(1, "yes, \"" & b & "\" is a blank line")
> > else
> > puts(1, "no, \"" & b & "\" is not a blank line")
> > end if
> >
> > <code ends>
> >
> >
> > ----- Original Message -----
> > From: "Dan Moyer" <DANIELMOYER at prodigy.net>
> > To: "EUforum" <EUforum at topica.com>
> > Sent: Thursday, July 18, 2002 5:19 AM
> > Subject: find if any memers of a set are in another set
> > (blank line finder)?
> >
> >
> > > I want to be able to discern whether a sequence (a line of text) is
> > "empty"
<snip>
>
>
>
>
