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Re: cpython (2.7): #14538: HTMLParser can now parse correctly start tags that contain a bare /.

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g.brandl at gmx

Apr 24, 2012, 10:13 AM

Post #1 of 7 (166 views)
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Re: cpython (2.7): #14538: HTMLParser can now parse correctly start tags that contain a bare /.

On 19.04.2012 03:36, ezio.melotti wrote:
> http://hg.python.org/cpython/rev/36c901fcfcda
> changeset: 76413:36c901fcfcda
> branch: 2.7
> user: Ezio Melotti <ezio.melotti [at] gmail>
> date: Wed Apr 18 19:08:41 2012 -0600
> summary:
> #14538: HTMLParser can now parse correctly start tags that contain a bare /.

> diff --git a/Misc/NEWS b/Misc/NEWS
> --- a/Misc/NEWS
> +++ b/Misc/NEWS
> @@ -50,6 +50,9 @@
> Library
> -------
>
> +- Issue #14538: HTMLParser can now parse correctly start tags that contain
> + a bare '/'.
> +

I think that's misleading: there's no way to "correctly" parse malformed HTML.

Georg

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benjamin at python

Apr 24, 2012, 11:34 AM

Post #2 of 7 (158 views)
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Re: cpython (2.7): #14538: HTMLParser can now parse correctly start tags that contain a bare /. [In reply to]

2012/4/24 Georg Brandl <g.brandl [at] gmx>:
> On 19.04.2012 03:36, ezio.melotti wrote:
>> http://hg.python.org/cpython/rev/36c901fcfcda
>> changeset: Ā 76413:36c901fcfcda
>> branch: Ā Ā Ā 2.7
>> user: Ā Ā Ā Ā Ezio Melotti <ezio.melotti [at] gmail>
>> date: Ā Ā Ā Ā Wed Apr 18 19:08:41 2012 -0600
>> summary:
>> Ā #14538: HTMLParser can now parse correctly start tags that contain a bare /.
>
>> diff --git a/Misc/NEWS b/Misc/NEWS
>> --- a/Misc/NEWS
>> +++ b/Misc/NEWS
>> @@ -50,6 +50,9 @@
>> Ā Library
>> Ā -------
>>
>> +- Issue #14538: HTMLParser can now parse correctly start tags that contain
>> + Ā a bare '/'.
>> +
>
> I think that's misleading: there's no way to "correctly" parse malformed HTML.

There is in the since that you can follow the HTML5 algorithm, which
can "parse" any junk you throw at it.

--
Regards,
Benjamin
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fdrake at acm

Apr 24, 2012, 12:00 PM

Post #3 of 7 (158 views)
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Re: cpython (2.7): #14538: HTMLParser can now parse correctly start tags that contain a bare /. [In reply to]

On Tue, Apr 24, 2012 at 2:34 PM, Benjamin Peterson <benjamin [at] python> wrote:
> There is in the since that you can follow the HTML5 algorithm, which
> can "parse" any junk you throw at it.

This whole can of worms is why I gave up on HTML years ago (well, one
reason among many).

There are markup languages, and there's soup.

-Fred

--
Fred L. Drake, Jr. <fdrake at acm.org>
"A person who won't read has no advantage over one who can't read."
--Samuel Langhorne Clemens
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g.brandl at gmx

Apr 24, 2012, 12:02 PM

Post #4 of 7 (157 views)
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Re: cpython (2.7): #14538: HTMLParser can now parse correctly start tags that contain a bare /. [In reply to]

On 24.04.2012 20:34, Benjamin Peterson wrote:
> 2012/4/24 Georg Brandl <g.brandl [at] gmx>:
>> On 19.04.2012 03:36, ezio.melotti wrote:
>>> http://hg.python.org/cpython/rev/36c901fcfcda
>>> changeset: 76413:36c901fcfcda
>>> branch: 2.7
>>> user: Ezio Melotti <ezio.melotti [at] gmail>
>>> date: Wed Apr 18 19:08:41 2012 -0600
>>> summary:
>>> #14538: HTMLParser can now parse correctly start tags that contain a bare /.
>>
>>> diff --git a/Misc/NEWS b/Misc/NEWS
>>> --- a/Misc/NEWS
>>> +++ b/Misc/NEWS
>>> @@ -50,6 +50,9 @@
>>> Library
>>> -------
>>>
>>> +- Issue #14538: HTMLParser can now parse correctly start tags that contain
>>> + a bare '/'.
>>> +
>>
>> I think that's misleading: there's no way to "correctly" parse malformed HTML.
>
> There is in the since that you can follow the HTML5 algorithm, which
> can "parse" any junk you throw at it.

Ah, good. Then I hope we are following the algorithm here (and are slowly
coming to use it for htmllib in general).

Georg

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benjamin at python

Apr 24, 2012, 12:05 PM

Post #5 of 7 (156 views)
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Re: cpython (2.7): #14538: HTMLParser can now parse correctly start tags that contain a bare /. [In reply to]

2012/4/24 Benjamin Peterson <benjamin [at] python>:
> There is in the since

This is confusing, since I meant "sense".

--
Regards,
Benjamin
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merwok at netwok

Apr 24, 2012, 12:34 PM

Post #6 of 7 (151 views)
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Re: cpython (2.7): #14538: HTMLParser can now parse correctly start tags that contain a bare /. [In reply to]

Le 24/04/2012 15:02, Georg Brandl a Ć©crit :
> On 24.04.2012 20:34, Benjamin Peterson wrote:
>> 2012/4/24 Georg Brandl<g.brandl [at] gmx>:
>>> I think that's misleading: there's no way to "correctly" parse malformed HTML.
>> There is in the since that you can follow the HTML5 algorithm, which
>> can "parse" any junk you throw at it.
> Ah, good. Then I hope we are following the algorithm here (and are slowly
> coming to use it for htmllib in general).

Yes, Ezioā€™s commits on html.parser/HTMLParser in the last months have
been following the HTML5 spec. Ezio, RDM and I have had some discussion
about that on some bug reports, IRC and private mail and reached the
agreement to do the useful thing, that is follow HTML5 and not pretend
that the stdlib parser is strict or validating.

Ezio was thinking about a blog.python.org post to advertise this.

Regards
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brian at python

Apr 24, 2012, 12:41 PM

Post #7 of 7 (151 views)
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Re: cpython (2.7): #14538: HTMLParser can now parse correctly start tags that contain a bare /. [In reply to]

On Tue, Apr 24, 2012 at 14:34, Éric Araujo <merwok [at] netwok> wrote:
> Le 24/04/2012 15:02, Georg Brandl a écrit :
>>
>> On 24.04.2012 20:34, Benjamin Peterson wrote:
>>>
>>> 2012/4/24 Georg Brandl<g.brandl [at] gmx>:
>>>>
>>>> I think that's misleading: there's no way to "correctly" parse malformed
>>>> HTML.
>>>
>>> There is in the since that you can follow the HTML5 algorithm, which
>>> can "parse" any junk you throw at it.
>>
>> Ah, good. Then I hope we are following the algorithm here (and are slowly
>> coming to use it for htmllib in general).
>
>
> Yes, Ezio’s commits on html.parser/HTMLParser in the last months have been
> following the HTML5 spec. Ezio, RDM and I have had some discussion about
> that on some bug reports, IRC and private mail and reached the agreement to
> do the useful thing, that is follow HTML5 and not pretend that the stdlib
> parser is strict or validating.
>
> Ezio was thinking about a blog.python.org post to advertise this.

Please do this, and I welcome anyone else who wants to write about
their work on the blog to do so. Contact me for info.
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