Lettrines in MkIV

Lettrines in MkIV

[Philipp Gesang]

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Hi all,

the lettrine module leads to an error with this example and MkIV.
MkII is fine.

····8<···························································
\usemodule[lettrine]

\starttext
\chapter{And Now: an Error}
\lettrine{E}{rror}
\stoptext
····8<···························································

* With Luatex 0.63.0-2010091123 I get an ``error on line 6 in
  file ../environ.tex: Attempt to double-free glue node 1001,
  ignored ...``

* Can be circumvented via “\dontleavehmode”.

* Never ran into a “glue node” error before; is there general
  rule how to avoid them?

Thanks for any advice,

Philipp

PS: Taco, the french blindtext in lettrine-doc.pdf has an issue
    concerning guillemets, which are rendered as inverted
    question marks and exclamation marks. I wasn't able to
    compile the document myself so unfortunately I can't send a
    patch.

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Re: Lettrines in MkIV

[Hans Hagen]

On 21-9-2010 8:39, Philipp Gesang wrote:
> Hi all,
>
> the lettrine module leads to an error with this example and MkIV.
> MkII is fine.
>
> ····8<···························································
> \usemodule[lettrine]
>
> \starttext
> \chapter{And Now: an Error}
> \lettrine{E}{rror}
> \stoptext
> ····8<···························································
>
> * With Luatex 0.63.0-2010091123 I get an ``error on line 6 in
>    file ../environ.tex: Attempt to double-free glue node 1001,
>    ignored ...``
>
> * Can be circumvented via “\dontleavehmode”.
>
> * Never ran into a “glue node” error before; is there general
>    rule how to avoid them?
>
> Thanks for any advice,

Alan ran into this at the ctx conference and it is under investigation.

Hans


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Re: Lettrines in MkIV

[Philipp Gesang]

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On 2010-09-21 <21:47:35>, Hans Hagen wrote:
> On 21-9-2010 8:39, Philipp Gesang wrote:
> >
> >* Can be circumvented via “\dontleavehmode”.

> Alan ran into this at the ctx conference and it is under investigation.

Hi,

in case this helps with debugging: you can’t work around the
issue by means of “\dontleavehmode” if you set up the paragraph 
auto-indentation to “yes,medium”:

····8<···························································
\setupindenting[yes,medium] % comment this out and it works again
\usemodule[lettrine]
\starttext

\chapter{Some Section}
\startparagraph
\dontleavehmode\lettrine{D}{on Knuth asserts:}
\input knuth
\stopparagraph

\stoptext
····8<···························································

This results, again, in the glue node error.

Philipp


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Re: Lettrines in MkIV

[Hans Hagen]

On 23-9-2010 2:32, Philipp Gesang wrote:
> On 2010-09-21<21:47:35>, Hans Hagen wrote:
>> On 21-9-2010 8:39, Philipp Gesang wrote:
>>>
>>> * Can be circumvented via “\dontleavehmode”.
>
>> Alan ran into this at the ctx conference and it is under investigation.
>
> Hi,
>
> in case this helps with debugging: you can’t work around the
> issue by means of “\dontleavehmode” if you set up the paragraph
> auto-indentation to “yes,medium”:
>
> ····8<···························································
> \setupindenting[yes,medium] % comment this out and it works again
> \usemodule[lettrine]
> \starttext
>
> \chapter{Some Section}
> \startparagraph
> \dontleavehmode\lettrine{D}{on Knuth asserts:}
> \input knuth
> \stopparagraph
>
> \stoptext
> ····8<···························································
>
> This results, again, in the glue node error.

we know and we will take a look at it next week (as it takes some time 
to nail down node allocation bugs)

Hans

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Re: Lettrines in MkIV

[Alan BRASLAU]

On Thursday 23 September 2010 15:49:07 Hans Hagen wrote:
> 
> we know and we will take a look at it next week (as it takes some time
> to nail down node allocation bugs)
> 

As Hans indicated, he is aware of the problem with the lettrine module
and will fix it. In the meantime, you can get by using simply:

%\usemodule [lettrine]
% broken, so let's fake it:
\def\lettrine#1#2{{\tfc #1}#2}

Of course, this is no good for production, but it is a simple
solution if you are working on drafts.

Alan

P.S. Those who were at Brejlov will remember that a
"solution" is something that is all mixed-up!
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Re: Lettrines in MkIV

[Aditya Mahajan]

On Thu, 23 Sep 2010, Alan BRASLAU wrote:

> On Thursday 23 September 2010 15:49:07 Hans Hagen wrote:
>>
>> we know and we will take a look at it next week (as it takes some time
>> to nail down node allocation bugs)
>>
>
> As Hans indicated, he is aware of the problem with the lettrine module
> and will fix it. In the meantime, you can get by using simply:
>
> %\usemodule [lettrine]
> % broken, so let's fake it:
> \def\lettrine#1#2{{\tfc #1}#2}
>
> Of course, this is no good for production, but it is a simple
> solution if you are working on drafts.

Isn't it better to use initials? This is what one of setups has"

\definehead[initialtitle][title]

\setuphead[initialtitle]
           [after=\placeinitial]

\definefontsynonym[initial][name:fontin]

\setupinitial
   [   state=start,
           n=3,
    distance=-.1pc,
   ]

And then I can simply use

\initialtitle {Don Knuth said}

\input knuth

Aditya

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Re: Lettrines in MkIV

[Alan BRASLAU]

On Thursday 23 September 2010 18:24:05 Aditya Mahajan wrote:
> On Thu, 23 Sep 2010, Alan BRASLAU wrote:
> > On Thursday 23 September 2010 15:49:07 Hans Hagen wrote:
> >> we know and we will take a look at it next week (as it takes some time
> >> to nail down node allocation bugs)
> > 
> > As Hans indicated, he is aware of the problem with the lettrine module
> > and will fix it. In the meantime, you can get by using simply:
> > 
> > %\usemodule [lettrine]
> > % broken, so let's fake it:
> > \def\lettrine#1#2{{\tfc #1}#2}
> > 
> > Of course, this is no good for production, but it is a simple
> > solution if you are working on drafts.
> 
> Isn't it better to use initials? This is what one of setups has"
> 
> \definehead[initialtitle][title]
> 
> \setuphead[initialtitle]
>            [after=\placeinitial]
> 
> \definefontsynonym[initial][name:fontin]
> 
> \setupinitial
>    [   state=start,
>            n=3,
>     distance=-.1pc,
>    ]
> 
> And then I can simply use
> 
> \initialtitle {Don Knuth said}
> 
> \input knuth
> 
> Aditya

I don't think that it is the same thing, but I do not understand
your example. Did you try running it? 

Alan
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Re: Lettrines in MkIV

[Aditya Mahajan]

On Thu, 23 Sep 2010, Alan BRASLAU wrote:

> On Thursday 23 September 2010 18:24:05 Aditya Mahajan wrote:
>> On Thu, 23 Sep 2010, Alan BRASLAU wrote:
>>> On Thursday 23 September 2010 15:49:07 Hans Hagen wrote:
>>>> we know and we will take a look at it next week (as it takes some time
>>>> to nail down node allocation bugs)
>>>
>>> As Hans indicated, he is aware of the problem with the lettrine module
>>> and will fix it. In the meantime, you can get by using simply:
>>>
>>> %\usemodule [lettrine]
>>> % broken, so let's fake it:
>>> \def\lettrine#1#2{{\tfc #1}#2}
>>>
>>> Of course, this is no good for production, but it is a simple
>>> solution if you are working on drafts.
>>
>> Isn't it better to use initials? This is what one of setups has"
>>
>> \definehead[initialtitle][title]
>>
>> \setuphead[initialtitle]
>>            [after=\placeinitial]
>>
>> \definefontsynonym[initial][name:fontin]
>>
>> \setupinitial
>>    [   state=start,
>>            n=3,
>>     distance=-.1pc,
>>    ]
>>
>> And then I can simply use
>>
>> \initialtitle {Don Knuth said}
>>
>> \input knuth
>>
>> Aditya
>
> I don't think that it is the same thing, but I do not understand
> your example. Did you try running it?

Sorry... \placeinitial gobbles \input.... but here is a standalone 
example:

\setupinitial
   [   state=start,
           n=3,
    distance=-.1pc,
   ]

\starttext

\placeinitial This is what Knuth said: \input knuth

\stoptext


Aditya
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Re: Lettrines in MkIV

[Alan BRASLAU]

On Thursday 23 September 2010 18:46:00 you wrote:
> 
> Sorry... \placeinitial gobbles \input.... but here is a standalone
> example:
> 
> \setupinitial
>    [   state=start,
>            n=3,
>     distance=-.1pc,
>    ]
> 
> \starttext
> 
> \placeinitial This is what Knuth said: \input knuth
> 
> \stoptext
> 

I didn't know about initial...

%D \macros
%D   {setupinitial,placeinitial,checkinitial}
%D
%D {\em To be documented.}

Indeed!


Nice, I would like to use something like this,
even setting it up to be automatic at the beginning
of chapters, for example.

But it does not quite work as lettrines.
In a silly language such as French, the following fails:

\placeinitial L'objet de cette commande\dots

as one needs:

\lettrine{L'}{objet} de cette commande\dots

Other heuristics might apply in different cases.

Alan
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Re: Lettrines in MkIV

[Aditya Mahajan]

On Thu, 23 Sep 2010, Alan BRASLAU wrote:

> On Thursday 23 September 2010 18:46:00 you wrote:
>>
>> Sorry... \placeinitial gobbles \input.... but here is a standalone
>> example:
>>
>> \setupinitial
>>    [   state=start,
>>            n=3,
>>     distance=-.1pc,
>>    ]
>>
>> \starttext
>>
>> \placeinitial This is what Knuth said: \input knuth
>>
>> \stoptext
>>
>
> I didn't know about initial...
>
> %D \macros
> %D   {setupinitial,placeinitial,checkinitial}
> %D
> %D {\em To be documented.}
>
> Indeed!

So you do not consider the source itself as the documentation :)

> Nice, I would like to use something like this,
> even setting it up to be automatic at the beginning
> of chapters, for example.

The example that I showed earlier did that. Essentially, just use

\setuphead[chapter][after=\placeinitial]

> But it does not quite work as lettrines.

Indeed. Otherwise, there would no need for a separate module. Actually, it 
will be nice if the functionality of lettrine can be merged with 
\placeintial.

> In a silly language such as French, the following fails:
>
> \placeinitial L'objet de cette commande\dots
>
> as one needs:
>
> \lettrine{L'}{objet} de cette commande\dots
>
> Other heuristics might apply in different cases.

And there are sentences starting with quotations, etc.

Aditya
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Re: Lettrines in MkIV

[Philipp Gesang]

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On 2010-09-23 <12:24:05>, Aditya Mahajan wrote:
> On Thu, 23 Sep 2010, Alan BRASLAU wrote:
> 
> >On Thursday 23 September 2010 15:49:07 Hans Hagen wrote:
> >>
> >>we know and we will take a look at it next week (as it takes some time
> >>to nail down node allocation bugs)
> >>
> >
> >As Hans indicated, he is aware of the problem with the lettrine module
> >and will fix it. In the meantime, you can get by using simply:
> >
> >%\usemodule [lettrine]
> >% broken, so let's fake it:
> >\def\lettrine#1#2{{\tfc #1}#2}
> >
> >Of course, this is no good for production, but it is a simple
> >solution if you are working on drafts.
> 
> Isn't it better to use initials? This is what one of setups has"
> 
> \definehead[initialtitle][title]
> 
> \setuphead[initialtitle]
>           [after=\placeinitial]
> 
> \definefontsynonym[initial][name:fontin]
> 
> \setupinitial
>   [   state=start,
>           n=3,
>    distance=-.1pc,
>   ]
> 
> And then I can simply use
> 
> \initialtitle {Don Knuth said}
> 
> \input knuth

Dear Alan, Aditya, and everybody else,

thanks for your efforts, but I’m afraid that you were being
mislead about my intentions.

I am (probably mis-)using the lettrine module in order to fake the
Knuthian \danger and \ddanger macros in auto-generated context
code. One of the main goals is, other than pure convenience on my
part, that understanding of the resulting code requires only
knowledge of high-level context macros, not of high-level tex
wizardry. Of course I could start with texbook, p. 419, and try
to adapt it to context (seems to be non-trivial), but even if I
should succeed, the effort necessary to understand what’s going
on is huge compared to when using a well-known and
well-documented module.

That’s why I rather do without autoindentation, as it concerns
only the layout of the manual, not the code itself.

@Aditya, I couldn’t get your code to work, neither in mkii nor in
mkiv. Anyways, I wasn’t aware of \setup/placeinitial before so I
learned something new today.

Philipp


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Re: Lettrines in MkIV

[Alan BRASLAU]

On Thursday 23 September 2010 19:38:46 Aditya Mahajan wrote:
> > 
> > %D \macros
> > %D   {setupinitial,placeinitial,checkinitial}
> > %D
> > %D {\em To be documented.}
> > 
> > Indeed!
> 
> So you do not consider the source itself as the documentation :)
> 

Copied verbatum!

I (still) read documentation better than source code,
although I am learning how to read \TeX macros and now
even lua functions. I am also supposed to work on
*writing* the documentation!

> > But it does not quite work as lettrines.
> 
> Indeed. Otherwise, there would no need for a separate module. Actually, it
> will be nice if the functionality of lettrine can be merged with
> \placeintial.

Would be very nice. Do you have good ideas about how to better parse
the beginning of text? One needs to be clever.

> > \lettrine{L'}{objet} de cette commande\dots
> > 
> > Other heuristics might apply in different cases.
> 
> And there are sentences starting with quotations, etc.

As in:

\quote{The rain in Spain...}

Maybe others on the mailing list can suggest many particular cases.

Alan
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Re: Lettrines in MkIV

[Hans Hagen]

Hi,

Just a note: the node-freeing bug that showed up in the lettrine module 
has been solved (it took taco and me a while to nail down the exact 
circumstances and location in the luatex source -- it had to do with 
some broken linked list prev chain).

As the solution is in the binary (catching it in mkiv does not make much 
sense) the fix will be there when the minimals use the next beta of 
luatex (unless you compile yourself).

Hans



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                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
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