View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000487 | luatex | luatex bug | public | 2010-09-24 08:35 | 2015-10-06 20:11 |
| Reporter | Taco | Assigned To | Taco | ||
| Priority | normal | Severity | minor | Reproducibility | have not tried |
| Status | closed | Resolution | fixed | ||
| Summary | 0000487: negative protrusion values are handled wrong | ||||
| Description | Reported by Robert Schlicht: luatex doesn't deal with negative protrusion values correctly -- for opentype fonts, the margin kern is too small, while for type1 fonts it's way off, and even in the wrong direction: | ||||
| Steps To Reproduce | \tracingoutput1 \showboxbreadth\maxdimen \showboxdepth\maxdimen % Opentype: \input{luaotfload.sty} \font\x="Latin Modern Roman" at 12pt % Type1: % \font\x=cmr12 \x \pdfprotrudechars2 \parindent=0pt \lpcode\x`N=-500 \rpcode\x`N=-500 \lpcode\x`Z= 500 \rpcode\x`Z= 500 H\hfill H\penalty-10000 N\hfill N\par H\hfill H\penalty-10000 Z\hfill Z\par \bye | ||||
| Tags | No tags attached. | ||||
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I have a problem that I think is actually caused by this issue. However, unlike the description in this issue, for OpenType fonts, it is also a way off the margin rather than too small margin kern, just the same as for type1 fonts. I asked about this problem in tex.stackexchange.com. The detail and an example can be found in the following link. http://tex.stackexchange.com/questions/28733/lualatex-protrusion-problem-with-minion-italic |
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This bug has now been open for over three years. 17 people have upvoted the corresponding thread [1] on tex.stackexchange and 9 have upvoted its duplicate [2]. I would like to ask you to reconsider the severity of this bug, which I believe to be greater than "minor". Its effect is that documents which load the microtype package with default settings and employ italic text currently cannot be typeset reliably through luatex. [1] http://tex.stackexchange.com/questions/28733/lualatex-protrusion-problem-with-negative-value [2] http://tex.stackexchange.com/questions/104447/how-can-i-fix-a-problem-where-italics-prevent-line-breaking-when-using-microtype |
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Commenting \input{luaotfload.sty} and using the plain format in ConTeXt (mtxrun --script plain ) I have the test-type1.pdf and test-otf.pdf and they look ok for me. Also ConTeXt mkiv looks ok. $ luatex --version This is LuaTeX, Version beta-0.79.1 (TeX Live 2015/dev) it's the experimental branch (will replace trunk) |
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@luigi scarso: Could you please check if the MWE from http://tex.stackexchange.com/a/209196/16940 looks as expected, too, with this experimental version of luatex? |
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%% test-0000487.tex \documentclass[a4paper]{article} \usepackage{microtype} \usepackage{amsthm} \newtheorem{proposition}{Proposition} \usepackage{lipsum} \begin{document} \begin{proposition} \lipsum \end{proposition} \end{document} $> luatex --fmt=lualatex.fmt test-0000487.tex gives test-0000487.pdf on a TL 2014 with luatex experimental # luatex --version This is LuaTeX, Version beta-0.79.2 (TeX Live 2015/dev) Execute 'luatex --credits' for credits and version details. There is NO warranty. Redistribution of this software is covered by the terms of the GNU General Public License, version 2 or (at your option) any later version. For more information about these matters, see the file named COPYING and the LuaTeX source. Copyright 2014 Taco Hoekwater, the LuaTeX Team. NOTE: the format must be recreated, for example with luatex --ini lualatex.ini |
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Great! |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2010-09-24 08:35 | Taco | New Issue | |
| 2010-11-29 17:15 | Taco | Status | new => assigned |
| 2010-11-29 17:15 | Taco | Assigned To | => arthur |
| 2010-11-29 17:15 | Taco | Assigned To | arthur => Taco |
| 2011-09-17 17:56 | woodbird | Note Added: 0000909 | |
| 2011-09-17 17:56 | woodbird | Note Edited: 0000909 | |
| 2014-10-01 21:47 | pipping | Note Added: 0001281 | |
| 2014-10-06 14:22 | luigi scarso | File Added: test-type1.pdf | |
| 2014-10-06 14:23 | luigi scarso | File Added: test-otf.pdf | |
| 2014-10-06 14:24 | luigi scarso | Note Added: 0001284 | |
| 2014-10-06 14:26 | luigi scarso | Note Edited: 0001284 | |
| 2014-10-29 19:10 | pipping | Note Added: 0001298 | |
| 2014-10-29 19:33 | luigi scarso | File Added: test-0000487.pdf | |
| 2014-10-29 19:37 | luigi scarso | Note Added: 0001299 | |
| 2014-10-29 20:02 | pipping | Note Added: 0001300 | |
| 2015-10-06 20:11 | Hans Hagen | Status | assigned => closed |
| 2015-10-06 20:11 | Hans Hagen | Resolution | open => fixed |
