Hello,
Thank you, the updated hack worked, even with the margin kerning activated.
So for this to work, I have :
In the preamble
> \catcode"2019=\active
> \def’{\leavevmode \kern 1sp \hbox{\char"2019}}
Active margin kerning.
All upright ' replaced by true apostrophes in the text.
What really strikes me as weird is that when tex-text mapping and your hack
were commented BUT upright apostrophes replaced by true apostrophes in the
source, I still get upright apostrophes in the PDF with margin kerning.
To Peter Dyballa, I don't really know which unicode character is used, but the
difference with a straight and a true aopstrophe is easily visible (even in the
image exemple I posted).
Le 31 oct. 2010 à 23:19, John Was a écrit :
> Hello Pierre
>
> I'm sorry to say that I can't help with the marginal kerning - I've never
> investigated that facility in TeX since the output I get without it has
> always seemed OK (to my eye) in the work I do. What seems to be happening is
> that the TeX mapping is being ignored by the package that deals with the
> marginal kerning, so when in the \active hacks that I sent you the true
> apostrophe is being replaced by the upright ', the package is giving you the
> latter instead of switching it to the correct typographical sort as your TeX
> mapping specifies. I'm sure those maintaining the package will be able to
> come up with some proper solution, but in the meantime you could try
> bypassing the TeX mapping for apostrophes and closing quotation marks by
> using the correct Unicode characters (as I think you have already done with
> the single quotation mark/apostrophe).
>
> In spite of my misgivings about using an active character in the definition
> of that very same character, the following does seem to work without causing
> processing errors:
>
> \catcode"2019=\active
> \def’{\leavevmode \kern 1sp \hbox{\char"2019}}
> \catcode"201D=\active
> \def”{\leavevmode \kern 1sp \hbox{\char"201D}}
>
> Try that instead of my previous four lines of code and see what happens!
>
>
>
> John
>
>
>
>
> ----- Original Message ----- From: "Pierre Morel" <pier.mo...@gmail.com>
> To: "Unicode-based TeX for Mac OS X and other platforms" <xetex@tug.org>
> Sent: 31 October 2010 18:14
> Subject: Re: [XeTeX] Several apostrophe-related problems (kerning, mapping)
>
>
> Thank you John, your hack indeed solves the problem when U+0027 apostrophes
> are replaced with U+2019 apostrophes (I did not try to make U+0027 active)
> and when the margin kering is not activated.
>
> However, replacing U+0027 with U+2019 apostrophes showed that the
> margin-kerning bug is not due to the tex-text mapping : even when the
> apostrophes are U+2019 in the source file, they are replaced by U+0027
> apostrophes in the PDF !! And this only for the font for which margin kerning
> is activated.
>
> Any ideas on this last problem ?
>
>
> Le 31 oct. 2010 à 16:32, John Was a écrit :
>
>> Hello
>>
>> I can't help with the marginal kering (which I don't use), but here is what
>> I do in a font that also had overtight kerning associated with apostrophes:
>>
>> \catcode"2019=\active
>> \def’{\leavevmode \kern 1sp \hbox{'}}
>> \catcode"201D=\active
>> \def”{\leavevmode \kern 1sp \hbox{''}}
>>
>> Note that the characters in the \hboxes are the ordinary straight apostrophe
>> (since I also use TeX mapping in my font calls.)
>>
>> As it stands, this would involve you actually using the correct Unicode
>> characters 2019 and 201D for closing single and double apostrophes in your
>> document, in spite of your tex-mapping - and I guess you could achieve this
>> by global search-and-replace in your file. But you may be able to do much
>> the same thing by making 0027 active instead (I haven't tried that - I can
>> see a potential danger of a loop if you are using 0027 to define itself).
>>
>> I'm sure there are more elegant solutions - and I use plain TeX so there may
>> be LaTeX issues that I don't know about.
>>
>> (Of course, if my request for custom kerning could be met, we would all be
>> able to refine the kerning of any font at will. Unfortunately, someone in
>> another thread explained that that is very difficult in XeTeX because of the
>> way it looks up font information (LuaTeX can do it because it has another
>> method of accessing the font's tables). I was rather hoping that someone
>> would see that as an opportunity to show off hrs computing prowess by
>> performing the miracle - but this hasn't happened yet.)
>>
>> John
>>
>>
>>
>> ----- Original Message ----- From: "Pierre Morel" <pier.mo...@gmail.com>
>> To: "Unicode-based TeX for Mac OS X and other platforms" <xetex@tug.org>
>> Sent: 31 October 2010 15:02
>> Subject: [XeTeX] Several apostrophe-related problems (kerning, mapping)
>>
>>
>> Hello,
>>
>> My thesis is finished soon, but I have an annoying apostrophe problem.
>>
>> In French we have a lot of apostrophes uses like this : L'œil,
>> l'incertitude, etc.
>> In theory, these apostrophes should be the unicode character U+2019 (right
>> single quotation mark) instead of a straight apostrophe (U+0027). This
>> replacement is automatically made by this command :
>> \defaultfontfeatures{Mapping=tex-text}
>>
>> First there is a problem with the kerning of this U+2019 character, it is
>> possibly a bug in the font I'm using (Adobe Caslon Pro), but I'd like to
>> solve it anyway.
>> Here is an example (The word L'œil, on the top right) :
>> http://dl.dropbox.com/u/1205127/Images/xetex.jpg
>> The apostrophe is completely kerned above the "œ" (the same problem is
>> present for any small character), which thus touches the "L".
>> So my first question is: is there a way to override the default kerning of
>> this U+2019 character so that it behaves in a more correct way (with a
>> slight space between the apostrophe and the next letter) ?
>>
>> Now there is a second problem (which solved the first one but in a bad way).
>> When activating margin kerning, xetex behaves as if the line
>> \defaultfontfeatures{Mapping=tex-text} was not present : U+0027 apostrophes
>> stay straight (which curiously solves the kerning problem, see the example
>> on the top left of the image), and `` and '' are not converted appropriately
>> (more annoying).
>> Here is what I use for the margin kerning (when I comment these line, the
>> mapping problem is corrected) :
>>
>> \newcount\countA
>> \ifx\XeTeXprotrudechars\undefined
>> \pdfprotrudechars=2
>> \else
>> \let\pdftexversion=\countA
>> \pdftexversion = 140
>> \XeTeXprotrudechars=2%\fi
>> \input protcode-native
>> \font\f="Adobe Caslon Pro" at 11pt \f
>> \setprotcode\f
>> \pretolerance=-1
>> \tolerance=9999
>> \emergencystretch=2em
>>
>> With the file protcode-native file being
>>
>> \def\setprotcode#1{
>> \rpcode#1 U"0021 55
>> \rpcode#1 U"002C 194
>> \rpcode#1 U"002D 233
>> \rpcode#1 U"002E 194
>> \rpcode#1 U"003B 138
>> \rpcode#1 U"003A 138
>> \rpcode#1 U"003F 94
>> \lpcode#1 U"2018 194
>> \rpcode#1 U"2019 194
>> \rpcode#1 U"0027 194
>> \lpcode#1 U"201C 250
>> \rpcode#1 U"201D 250
>> \rpcode#1 U"2013 150
>> \rpcode#1 U"2014 200
>> }
>>
>> So, in short, I want to use margin kerning while maintaining the tex-text
>> mapping AND having a correct kerning with the U+2019 apostrophe.
>>
>> PS: (this last problem also appears on my sans serif font (Myriad pro), an
>> example is visible in the linked image.
>>
>> Thank you,
>>
>> Pierre
>>
>>
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