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Re: Elliptical arc minimal syntax

From: Jeff Schiller <codedread@gmail.com>
Date: Mon, 5 Apr 2010 09:42:03 -0500
Message-ID: <g2wda131fde1004050742i8363aa9bk421a68c2acbed00b@mail.gmail.com>
To: Dirk Schulze <vbs85@gmx.de>
Cc: www-svg <www-svg@w3.org>
My apologies - it seems I mis-misinterpreted :)

I think Dirk's analysis is correct here and seems that the other
browsers do a comma-wsp? between the last flag and the
coordinate-pair?

Regards,
Jeff

On Mon, Apr 5, 2010 at 9:35 AM, Dirk Schulze <vbs85@gmx.de> wrote:
> Sorry, I misunderstood Jeff. The Spec says the following:
>
> elliptical-arc-argument:
>    nonnegative-number comma-wsp? nonnegative-number comma-wsp?
>    number comma-wsp flag comma-wsp flag comma-wsp coordinate-pair
>
> The relevant part of Jeff's Code:
>
>        <path id="svgbar" d="m23,45 a7,7 0 1 00,10z"/>
>
> Like you can see, on FireFox and Opera, the first zero represents the flag, the second zero the first coordinate of the coordinate-pair.
> This is NOT valid acording to the Spec. There must be a comma-wsp after the second flag.
>
> comma-wsp:
>    (wsp+ comma? wsp*) | (comma wsp*)
>
> This tells us, that comma-wsp must begin with either a comma or a space. So my interpretation is, that WebKit is right and the other browsers are more tollerant than they should be.
>
> Cheers
> Dirk
>
> Am Montag, den 05.04.2010, 08:23 -0500 schrieb Jeff Schiller:
>> I misinterpreted this - I think the reason is that a leading zero is
>> not valid for numbers greater than or equal to 1 so 0100 should
>> probably be interpreted as 0,100?
>>
>> Two more data points:
>>
>>   * Batik 1.7 renders it
>>   * Inkscape does not render it
>>
>> Regards,
>> Jeff
>>
>> On Mon, Apr 5, 2010 at 7:49 AM, Jeff Schiller <codedread@gmail.com> wrote:
>> > <svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"
>> > xmlns:xlink="http://www.w3.org/1999/xlink">
>> >  <g>
>> >  <title>Layer 1</title>
>> >  <path id="svgbar" d="m23,45a7,7 0 1 00,10h54a7,7 0 1 00,-10z"/>
>> >  </g>
>> > </svg>
>> >
>> > Is the following path correct according to the grammar at
>> > http://www.w3.org/TR/SVG11/paths.html#PathDataBNF ?  I guess the
>> > grammar also needs to take into account the rule that "Superfluous
>> > white space and separators such as commas can be eliminated"
>> >
>> > i.e. is it legal for browsers to skip the space and comma between the
>> > largeArcFlag and the sweepFlag because those values can only be 0 or
>> > 1?
>> >
>> >  * Mozilla, Opera and IE9 allow this.
>> >  * WebKit does not.
>> >
>> > Thanks,
>> > Jeff
>> >
>
>
>
Received on Monday, 5 April 2010 14:43:14 GMT

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