- ntg-pdftex - NTG Mailing Lists

[ pdftex-Bugs-695 ] Confusion when changing kerning settings within a paragraph
by noreply＠sarovar.org 15 Nov '06

15 Nov '06

Bugs item #695, was opened at 2006-11-15 01:16 You can respond by visiting: http://sarovar.org/tracker/?func=detail&atid=493&aid=695&group_id=106 Category: None Group: None Status: Open Resolution: None Priority: 5 Submitted By: Robert (schlcht) Assigned to: Nobody (None) Summary: Confusion when changing kerning settings within a paragraph Initial Comment: Extra kerning now has this nasty, unreliable kind of paragraph scope, so that whether or not extra kerning will be applied depends on whether tex needs to hyphenate the paragraph, and whether a word contains a discretionary. (Same as for \pdfnoligatures [see discussion in feature req 385], for which this may be an acceptable limitation, since it has global scope, anyway. However, I don't consider it acceptable for the kerning feature. Think of language-dependant settings, for example.) \hsize 7cm \pdfadjustspacing0 \knaccode\font`s=500 \knbccode\font`s=500 \pdfappendkern1 \pdfprependkern1 nasty testing nasty testing nasty testing nasty testing nasty testing nasty testing nasty testing nasty testing nasty testing nasty testing \pdfappendkern0 \pdfprependkern0 nasty testing nasty testing nasty testing nasty testing nasty testing \bye ---------------------------------------------------------------------- You can respond by visiting: http://sarovar.org/tracker/?func=detail&atid=493&aid=695&group_id=106

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[ pdftex-Bugs-694 ] Extra kerning doesn't work in lines composed with expanded fonts
by noreply＠sarovar.org 15 Nov '06

15 Nov '06

Bugs item #694, was opened at 2006-11-15 01:14 You can respond by visiting: http://sarovar.org/tracker/?func=detail&atid=493&aid=694&group_id=106 Category: None Group: None Status: Open Resolution: None Priority: 5 Submitted By: Robert (schlcht) Assigned to: Nobody (None) Summary: Extra kerning doesn't work in lines composed with expanded fonts Initial Comment: \pdftracingfonts2 \tracingoutput1 \showboxdepth\maxdimen \showboxbreadth\maxdimen \hsize 4cm \pdfprependkern1 \knbccode\font`:=500 \pdfadjustspacing2 \pdffontexpand\font 20 20 5 autoexpand yyy: yyy: yyy: yyy: yyy: yyy: \bye ---------------------------------------------------------------------- You can respond by visiting: http://sarovar.org/tracker/?func=detail&atid=493&aid=694&group_id=106

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[ pdftex-Bugs-693 ] No extra kerning before a character if it starts a word
by noreply＠sarovar.org 15 Nov '06

15 Nov '06

Bugs item #693, was opened at 2006-11-15 01:14 You can respond by visiting: http://sarovar.org/tracker/?func=detail&atid=493&aid=693&group_id=106 Category: None Group: None Status: Open Resolution: None Priority: 5 Submitted By: Robert (schlcht) Assigned to: Nobody (None) Summary: No extra kerning before a character if it starts a word Initial Comment: \tracingoutput1 \showboxdepth\maxdimen \showboxbreadth\maxdimen \pdfprependkern1 \knbccode\font`x=1000 xyx xyx \bye ---------------------------------------------------------------------- You can respond by visiting: http://sarovar.org/tracker/?func=detail&atid=493&aid=693&group_id=106

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[ pdftex-Bugs-692 ] Amount of extra kerning is wrong/has changed
by noreply＠sarovar.org 15 Nov '06

15 Nov '06

Bugs item #692, was opened at 2006-11-15 01:14 You can respond by visiting: http://sarovar.org/tracker/?func=detail&atid=493&aid=692&group_id=106 Category: None Group: None Status: Open Resolution: None Priority: 5 Submitted By: Robert (schlcht) Assigned to: Nobody (None) Summary: Amount of extra kerning is wrong/has changed Initial Comment: With \kn[ab]ccode=1000 a kern of 1em should be inserted. (Here, it's 2.32pt:) \tracingoutput1 \showboxdepth\maxdimen \showboxbreadth\maxdimen \pdfappendkern1 \pdfprependkern1 \knaccode\font`y=1000 \knbccode\font`y=1000 xyx \bye ---------------------------------------------------------------------- You can respond by visiting: http://sarovar.org/tracker/?func=detail&atid=493&aid=692&group_id=106

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[ pdftex-Patches-462 ] HZ font expansion by text matrix manipulation
by noreply＠sarovar.org 14 Nov '06

14 Nov '06

Patches item #462, was opened at 2005-12-23 23:35 You can respond by visiting: http://sarovar.org/tracker/?func=detail&atid=495&aid=462&group_id=106 Category: Positioning Group: v1.40.0 Status: Open >Resolution: Accepted Priority: 5 Submitted By: Hartmut Henkel (hhenkel) Assigned to: The Thanh Han (hanthethanh) Summary: HZ font expansion by text matrix manipulation Initial Comment: Use textmatrix Tm instead of /FontMatrix for font expansion. Then a font file will be embedded only once for all expansion factors. Gives smaller PDF files. Works then also for non-embedded fonts. TrueType not tried yet. Rough patch only, incomplete, work in progress, no warranty, not for production. Regards, Hartmut ---------------------------------------------------------------------- Comment By: Robert (schlcht) Date: 2006-09-30 16:22 Message: Logged In: YES user_id=2217 It's great to have this included! However, pdftex is now a bit too keen on autoexpanding -- it does so, even if `autoexpand' is not specified. Although the pre-created metrics are read, the physical font (pfb resp. pk) is ignored. As has been discussed re: bug 304, *not* using autoexpansion gives better results for MM (and MF) fonts, since the fonts are not stretched blindly but stroke widths are adjusted etc. Compare the output of the test file from bugs/304 compiled with an old pdftex and with 20060928. With the latter, the strokes are slightly heavier. Same here (with an existing file cmr10+100.mf): \pdfadjustspacing2 \pdfmapline{ cmr10} \pdfmapline{+cmr10+100} \font\cmr =cmr10 \cmr \pdffontexpand\cmr 100 0 100 %autoexpand Hamburgefonts\par \parfillskip 0pt Hamburgefonts \bye ---------------------------------------------------------------------- Comment By: Martin Schröder (oneiros) Date: 2006-02-13 19:41 Message: Logged In: YES user_id=421 The last word from Hartmut was that it's not ready yet and he'd be working on an improved version. ---------------------------------------------------------------------- Comment By: Robert (schlcht) Date: 2006-02-13 19:05 Message: Logged In: YES user_id=2217 Will this make it into 1.40? I would love to see it included. I've tested it a bit and did not find any problems (I'm also using it for the pre-built microtype documentation on CTAN). Regards, Robert ---------------------------------------------------------------------- You can respond by visiting: http://sarovar.org/tracker/?func=detail&atid=495&aid=462&group_id=106

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[ pdftex-Patches-432 ] Rules in a PDF qQ group
by noreply＠sarovar.org 14 Nov '06

14 Nov '06

Patches item #432, was opened at 2005-10-06 21:01 You can respond by visiting: http://sarovar.org/tracker/?func=detail&atid=495&aid=432&group_id=106 Category: Positioning >Group: v1.40.0 Status: Closed Resolution: Accepted Priority: 5 Submitted By: Hartmut Henkel (hhenkel) Assigned to: Hans Hagen (hagen) Summary: Rules in a PDF qQ group Initial Comment: Put rules with their positioning on the page inside a qQ group. Should make \pdfliteral page {...} behave consistently after text or rules or images, as then any positioning starts from the PDF origin; no delta-positioning anymore. It's already being tested in pdfluatex. Just to have it at sarovar... Testing welcome, particularily with text and graphics transforms by graphicx package, to spot backward incompatibilities, if any... Regards, Hartmut ---------------------------------------------------------------------- Comment By: Martin Schröder (oneiros) Date: 2006-07-26 12:29 Message: Logged In: YES user_id=421 This has been included in version 1.40 ---------------------------------------------------------------------- Comment By: Hartmut Henkel (hhenkel) Date: 2005-10-09 15:07 Message: Logged In: YES user_id=929 Update pdf_set_origin_temp: Now has (h, v) parameters. Regards, Hartmut ---------------------------------------------------------------------- You can respond by visiting: http://sarovar.org/tracker/?func=detail&atid=495&aid=432&group_id=106

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[ pdftex-Patches-663 ] fix for bugs #481--483
by noreply＠sarovar.org 10 Nov '06

10 Nov '06

Patches item #663, was opened at 2006-10-21 14:29 You can respond by visiting: http://sarovar.org/tracker/?func=detail&atid=495&aid=663&group_id=106 Category: hz Group: v1.40.0 >Status: Closed Resolution: Accepted Priority: 5 Submitted By: The Thanh Han (hanthethanh) Assigned to: Hartmut Henkel (hhenkel) Summary: fix for bugs #481--483 Initial Comment: This is an attempt to fix bug #481--483 - This patch applies to the pristine pdftex-1.40.0-beta-20061017 sources only; if you have applied another patch(es) to the sources, please discard them and start from the fresh ones. - How to apply: ,-------- | cd /path/to/pdftex-1.40.0-beta-20061017/src | cat /path/to/the/patch | patch -p1 | ./configure | cd texk/web2c | make pdftex `-------- ---------------------------------------------------------------------- >Comment By: Martin Schröder (oneiros) Date: 2006-11-10 17:24 Message: Logged In: YES user_id=421 The crash from (5) has been fixed. Please resubmit the other problems as bug reports; this patch has become confusing enough. :-} ---------------------------------------------------------------------- Comment By: Martin Schröder (oneiros) Date: 2006-11-06 23:59 Message: Logged In: YES user_id=421 A more general note: If possible please split continue the discussion at the affected bugs. ---------------------------------------------------------------------- Comment By: Martin Schröder (oneiros) Date: 2006-11-06 23:57 Message: Logged In: YES user_id=421 I can't reproduce the crash with the latest version of the patch. ---------------------------------------------------------------------- Comment By: Robert (schlcht) Date: 2006-11-06 22:36 Message: Logged In: YES user_id=2217 Hi, I've tested this patch and found some problems with it: (I haven't had a look at the first patch.) % ---------------------------------------------------- (1) The kerning amount is wrong/has changed. %...\kern2.32 % instead of (with previous versions) %...\kern 10.00002 % ---------------------------------------------------- (2) There's no kerning before a character if it starts a word. \hsize 9cm \tracingoutput1 \showboxdepth\maxdimen \showboxbreadth\maxdimen \knaccode\font`x=1000 \knbccode\font`x=1000 \pdfappendkern1 \pdfprependkern1 xyxyx xyxyx % ---------------------------------------------------- (3) Kerning doesn't work in lines composed with expanded fonts. \pdfprependkern1 \knbccode\font`:=500 \pdfadjustspacing2 \pdffontexpand\font 20 20 5 autoexpand yyyy: yyyy: yyyy: yyyy: yyyy: yyyy: yyyy: yyyy: yyyy: yyyy: yyyy: % ---------------------------------------------------- (4) Kerning now has this unreliable kind of paragraph scope, so that whether or not it will be applied depends on whether tex needs to hyphenate the paragraph, and whether a word contains a discretionary. \pdfadjustspacing0 \knaccode\font`s=500 \knbccode\font`s=500 \pdfappendkern1 \pdfprependkern1 tasty testing tasty testing tasty testing tasty testing tasty testing \pdfappendkern0 \pdfprependkern0 tasty testing tasty testing tasty testing tasty testing tasty testing \bye % ---------------------------------------------------- % (5) finally, this document gives a segfault % (ok without the patches): \documentclass[10pt,a4paper]{ltxdoc} \def\rmdefault{bch} \begin{document} \begin{multicols}{2} A (\textit{Bcdrea} \end{multicols} \end{document} ---------------------------------------------------------------------- Comment By: Robert (schlcht) Date: 2006-11-06 22:34 Message: Logged In: YES user_id=2217 Hi, I've tested this patch and found some problems with it: (I haven't had a look at the first patch.) % ---------------------------------------------------- (1) The kerning amount is wrong/has changed. %...\kern2.32 % instead of (with previous versions) %...\kern 10.00002 % ---------------------------------------------------- (2) There's no kerning before a character if it starts a word. \hsize 9cm \tracingoutput1 \showboxdepth\maxdimen \showboxbreadth\maxdimen \knaccode\font`x=1000 \knbccode\font`x=1000 \pdfappendkern1 \pdfprependkern1 xyxyx xyxyx % ---------------------------------------------------- (3) Kerning doesn't work in lines composed with expanded fonts. \pdfprependkern1 \knbccode\font`:=500 \pdfadjustspacing2 \pdffontexpand\font 20 20 5 autoexpand yyyy: yyyy: yyyy: yyyy: yyyy: yyyy: yyyy: yyyy: yyyy: yyyy: yyyy: % ---------------------------------------------------- (4) Kerning now has this unreliable kind of paragraph scope, so that whether or not it will be applied depends on whether tex needs to hyphenate the paragraph, and whether a word contains a discretionary. \pdfadjustspacing0 \knaccode\font`s=500 \knbccode\font`s=500 \pdfappendkern1 \pdfprependkern1 tasty testing tasty testing tasty testing tasty testing tasty testing \pdfappendkern0 \pdfprependkern0 tasty testing tasty testing tasty testing tasty testing tasty testing \bye % ---------------------------------------------------- % (5) finally, this document gives a segfault % (ok without the patches): \documentclass[10pt,a4paper]{ltxdoc} \def\rmdefault{bch} \begin{document} \begin{multicols}{2} A (\textit{Bcdrea} \end{multicols} \end{document} ---------------------------------------------------------------------- Comment By: The Thanh Han (hanthethanh) Date: 2006-11-02 09:44 Message: Logged In: YES user_id=710 Thank you Martin for looking at the patch and blessing it. I was struggling with TeX The Program more than a week before I came up with this patch and still I am not sure it doesn't break anything (I didn't claim it fixes bugs #481-484 but said this is an attempt to fix that). ---------------------------------------------------------------------- Comment By: Martin Schröder (oneiros) Date: 2006-11-01 18:37 Message: Logged In: YES user_id=421 Thanh, I looked at it, and as it does what you claim (fix #481-484) and doesn't seem to brake anything, it's in. :-) Although I'd like Hartmut to also have a look at it. hz isn't exactly my specialty. ---------------------------------------------------------------------- Comment By: The Thanh Han (hanthethanh) Date: 2006-10-28 18:01 Message: Logged In: YES user_id=710 Martin, have you looked at this patch? What do you think of it? ---------------------------------------------------------------------- Comment By: The Thanh Han (hanthethanh) Date: 2006-10-22 23:38 Message: Logged In: YES user_id=710 This is an update of the previous patch, which attemps to solve problem #484 as well (I would not call #484 a bug but a limitation -- a bug would mean that the behaviour is inconsistent with the specification). This patch is *very different* from the previous one, since now kerns inserted by the new primitives are treated as implicit kerns (they were treated as explicit kerns before this patch). This can lead to a very different behaviour, so be prepared :) ---------------------------------------------------------------------- Comment By: Martin Schröder (oneiros) Date: 2006-10-21 15:54 Message: Logged In: YES user_id=421 Thanks! Any idea for 484? :-) ---------------------------------------------------------------------- You can respond by visiting: http://sarovar.org/tracker/?func=detail&atid=495&aid=663&group_id=106

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[Hubert Chan] Re: C-only poppler API
by Frank Küster 10 Nov '06

10 Nov '06

-- Dr. Frank Küster Single Molecule Spectroscopy, Protein Folding @ Inst. f. Biochemie, Univ. Zürich Debian Developer (teTeX/TeXLive)

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Re: [NTG-pdftex] fix for bugs #481--483
by Akira Kakuto 09 Nov '06

09 Nov '06

Hi Martin, > 2006/11/8, Akira Kakuto <kakuto(a)fsci.fuk.kindai.ac.jp>: > > But it does occur in the case of pdftex-20061022.patch > > in fix-autokern2.zip. > > Not on Linux (2.6.16.21-0.25), but on OpenBSD 3.9 :-{ The crash on Windows has disappeared if I initialize tmp_k1 in beta-20061108. Best regards, Akira --- pdftex.web.20061108 Thu Nov 09 16:29:31 2006 +++ pdftex.web Thu Nov 09 16:33:20 2006 @@ -25491,7 +25491,7 @@ @<If there's a ligature or kern at the cursor position, update...@>= if cur_l=non_char then - begin k:=bchar_label[hf]; + begin tmp_k1:=null; k:=bchar_label[hf]; if k=non_address then goto done@+else q:=font_info[k].qqqq; end else begin

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Re: [NTG-pdftex] fix for bugs #481--483
by Akira Kakuto 08 Nov '06

08 Nov '06

Hi, > > I can't reproduce the crash with the latest version of the > > patch. > > On windows 2k, the crash was reproduced for > > % (5) finally, this document gives a segfault > % (ok without the patches): > \documentclass[10pt,a4paper]{ltxdoc} > \def\rmdefault{bch} > \begin{document} > \begin{multicols}{2} > A (\textit{Bcdrea} > \end{multicols} > \end{document} In the case of the second latest patch (i.e., pdftex-20061021.patch in fix-autokern.zip), The crash does not occur for the above example. But it does occur in the case of pdftex-20061022.patch in fix-autokern2.zip. Best regards, Akira

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