- ntg-context - Mailing Lists

Low res output possible?
by jbf 22 Aug '23

22 Aug '23

Just wondering: in programs like InDesign, Viva Designer, it is trivial to produce a low resolution pdf output (useful when exchanging a hi-res file with authors and editors prior to pre-print is difficult). I assume it might be possible to do so in ConTeXt. Currently I use a script (gs) to achieve that once I have the ConTeXt output so it is no difficulty, but if that could be done at time of compiling it would make the process just that bit simpler. Possible? Julian

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redefine space to be the same as \␣ similar to knuthian approach
by Carlos 21 Aug '23

21 Aug '23

If I have the following, with these linebreaks as in: {\par But a system cannot be successful if it is too strongly influenced by a single person. {\obeylines Once the initial design is complete and fairly robust, the real test begins as people with many different viewpoints undertake their own experiments.}} and opted to load another font, other than cmr that is, a \frenchspacing approach wouldn't be further required Bear with me here, in the current state, for example, and as long as say «…person.␣{\obeylines Once the initial is complete…» though feasible enough, leaves any prior \␣ at the mercy of whatever fontsize and/or set width happens to be. And this is just plain wrong. Likewise, if a word sequence such as \TeX\ occurs as in {\ss The separation of any of these four components would have hurt \TeX\ significantly. } The next sentence: «If I had not participated…» does not get any \nofrenchspacing which is equally and doubly problematic. It shows lack of consistency. And this ought not to be an ‹either› ‹or› scenario. But rather, an and conjunctional construct. It fails both ways. Furthermore, with the same token, if width is specified with a \setuplayout[width=15cm] Anything less than 12.895pt, especifically for that use case, wwould throw anything, particularly control sequences such as \TeX\ out of whack, and conversely, once a value of that very pt or pica or whatever is lowered, it brings that nonfrenchspacing right back on. And if width increments occur, then it follows that any control sequence kerning also gets thrown off as a result. It seems so far, that with lmtx, any standalone file, document, minimal working example that does not load cmr at the outset does not produce an acceptable outcome either. By saying acceptable I meant to say it namely from a typographical point of view. Nothing else. from the TeXbook 380-381 «\obeylines doesn’t say ‘\def^^M{\par}’, so we must make any desired changes to \par before invoking \obeylines. (2) The \uncatcodespecials operation changes a space to category 12; but the \tt font has the character ‘␣’ in the ⟨space⟩ position, so we don’t really want ␣12 . (3) The \obeyspaces macro in Appendix B merely changes the ⟨space⟩ character to category 13; active character ␣13 has been defined to be the same as \space, a macro that expands to ␣10 . This is usually what is desired; for example, it means that spaces in constructions like ‘\hbox to 10 pt {...}’ won’t cause any trouble. But in our application it has an undesirable effect, because it produces spaces that are affected by the space factor. To defeat this feature, it’s necessary either to say \frenchspacing or to redefine ␣13 to be the same as \␣. The latter alternative is better, because the former will discard spaces at the beginning of each line.» «In theory, this seems like it ought to work; but in practice, it fails in two ways. One rather obvious failure—at least, it becomes obvious when the macro is tested—is that all the empty lines of the file are omitted. The reason is that the \par command at the end of an empty line doesn’t start up a new paragraph, because it occurs in vertical mode. The other failure is not as obvious, because it occurs much less often: The \tt fonts contain ligatures for Spanish punctuation, so the sequences ?‘ and !‘ will be printed as ¿ and ¡ respectively. Both of these defects can be cured by inserting and «When INITEX creates a brand new TEX, all characters have a space factor code of 1000, except that the uppercase letters ‘A’ through ‘Z’ have code 999. (This slight difference is what makes punctuation act differently after an uppercase letter; do you see why?) Plain TEX redefines a few of these codes using the \sfcode primitive, which is similar to \catcode (see Appendix B); for example, the instructions \sfcode‘)=0 \sfcode‘.=3000 make right parentheses “transparent” to the space factor, while tripling the stretcha- bility after periods. The \frenchspacing operation resets \sfcode‘. to 1000.» -- If at first you don't succeed, you must be a programmer.

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zint 2.12.0 barcode generator
by Keith McKay 21 Aug '23

21 Aug '23

Hi all, I've updated the zint barcode generator on my mac mini to 2.12.0 and now no barcode is produced. I have this vague recollection that it is only the 2.10.0 version of zint which works in ConTeXt. If I am correct, is ConTeXt likely to be updated so that 2.12.0 works? I originally installed zint with Homebrew. There is a very complicated thread on stackoverflow on how to downgrade to previous versions of a formula in homebrew, but it is far too complicated for my wee brain. Thanks Keith McKay

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Penalties and overprinting in tabulate
by denis.maier＠unibe.ch 21 Aug '23

21 Aug '23

Dear list, typesetting the example below results in lines printed above each other? Without the penalties, this doesn't happen. What am I missing here? How I can use the penalties without the not wanted overprinting? Best, Denis \startsetups[mypenalties] \setdefaultpenalties \setpenalties\clubpenalties{1}{150} \setpenalties\widowpenalties{1}{10000} \setpenalties\displaywidowpenalties{1}{10000} \stopsetups \setuplayout[setups=mypenalties] \starttext \starttabulate[|p(.15\textwidth)|p|] \NC asdf \NC a asdf asdf asdf asdf asdf asdf sdf asdf asdf asdf asdf asdf asdf asdf ashjkdf askldf askdlfjöaslkdfjaösdlf \NC \NR \NC asdf \NC a asdf asdf asdf asdf asdf asdf sdf asdf asdf asdf asdf asdf asdf asdf ashjkdf askldf askdlfjöaslkdfjaösdlf \NC \NR \NC asdf \NC a asdf asdf asdf asdf asdf asdf sdf asdf asdf asdf asdf asdf asdf asdf ashjkdf askldf askdlfjöaslkdfjaösdlf \NC \NR \NC asdf \NC a asdf asdf asdf asdf asdf asdf sdf asdf asdf asdf asdf asdf asdf asdf ashjkdf askldf askdlfjöaslkdfjaösdlf \NC \NR \NC asdf \NC a asdf asdf asdf asdf asdf asdf sdf asdf asdf asdf asdf asdf asdf asdf ashjkdf askldf askdlfjöaslkdfjaösdlf \NC \NR \stoptabulate \stoptext

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Inconsistent behavior: \addfontfeature and CLD local function
by Hamid,Idris 20 Aug '23

20 Aug '23

Dear gang, For \addfeature and the like, a virtual font feature defined in terms of a CLD local function behaves differently from other font features. MWE: ============== \startluacode local function squeeze(tfmdata) for k, v in next, tfmdata.characters do v.width = 1.75 * (v.height or 0) v.depth = 1.75 * (v.depth or 0) end end local specification = { name = "sqtfm", description = "test", manipulators = { base = squeeze, node = squeeze, } } fonts.handlers.otf.features.register(specification) \stopluacode \definefontfeature[forceno] [mode=node, script=latn] \definefontfeature[forceyes] [mode=node, script=latn, smcp=force, sqtfm=force] % smcp=yes, % sqtfm=yes] \showglyphs \startTEXpage[offset=1em] \definedfont[texgyretermes-regular*forceyes] % \definedfont[texgyretermes-regular*forceno] % \addfeature{forceyes} abcdefg \stopTEXpage ============== You may toggle these lines: \definedfont[texgyretermes-regular*forceyes] % \definedfont[texgyretermes-regular*forceno] % \addfeature{forceyes} With \definedfont[texgyretermes-regular*forceyes] active we get the expected result: small caps plus some negative squeeze (= spread in this case). With \definedfont[texgyretermes-regular*forceno] \addfeature{forceyes} active we get an *unexpected* result: small caps but no negative squeeze. (Similar results occur if we toggle the "=force" lines with the "=yes" lines, but the larger project of which this is the MWE uses the force key.) Clue: A CLD with a feature defined via fonts.handlers.otf.addfeature doesn't seem to have this problem: ============== \startluacode local function squeeze(tfmdata) for k, v in next, tfmdata.characters do v.width = 1.75 * (v.height or 0) v.depth = 1.75 * (v.depth or 0) end end local specification = { name = "sqtfm", description = "test", manipulators = { base = squeeze, node = squeeze, } } fonts.handlers.otf.features.register(specification) fonts.handlers.otf.addfeature { name = "stest", type = "substitution", data = { a = "X", b = "P", } } \stopluacode \definefontfeature[forceno] [mode=node, script=latn] \definefontfeature[forceyes] [mode=node, script=latn, % % smcp=force, sqtfm=force, stest=force] % % smcp=yes, % sqtfm=yes, % stest=yes] \showglyphs \startTEXpage[offset=1em] \definedfont[texgyretermes-regular*forceyes] % \definedfont[texgyretermes-regular*forceno] % \addfeature{forceyes} abcdefg \stopTEXpage ============== So only the local-function feature appears to exhibit this inconsistency. What is the explanation for this inconsistent behavior? Is there a way to get the expected result for \addfeature etc.? Thank you in advance. Best wishes Idris -- Professor Idris Samawi Hamid Department of Philosophy Colorado State University Fort Collins, CO 80523

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backend not forcing 1000 width units on fonts; em size must be applied or else fails
by Carlos 20 Aug '23

20 Aug '23

Mikael, Wolfgang: This is in reference to the prior Re: redefine space to be the same as \␣ similar to knuthian approach > Maybe your system is broken? > > > > > > 2. The example below results in a correct output for \TEX. > > > > > > > Not in my end with any font other than latin modern > > Here > > \setupbodyfont[stixtwo] > > > \setuplayout[width=16cm] > \showmakeup > > \starttext > > Thus, I came to the conclusion that the designer of a new > system must not only be the implementer and first > large||scale user; the designer should also write the first > user manual. > \setupbodyfont[12.895pt] > > {\ss The separation of any of these four components would have > hurt \TeX\ significantly. If I had not participated fully in > all these activities, literally hundreds of improvements > would never have been made, because I would never have > thought of them or perceived why they were important.\par} After long hours of meditation I was going to ask you, Mikael, what exactly did you mean by «maybe your system is broken» but I chose to have chatgpt to provide me all the answers instead; just kidding :) But It seems as if any other font without the correct width units causes kerning to be thrown off most noticeably on control sequences such as \TeX\ and presumably, this, in turn, rightly so, also causes those extra spaces all over When I read the log it said that the backend > fonts > width units are being forced to be 1000, but in reality this never happened. If it had happened, I wouldnt' have had this issue with sizes say at 10pt and 11pt The permissions for these font files are 644 or read permissions only and I wrongly assumed this would be taken care of by the backend, but by the looks of it, it didn't. Anyhow. Thank you for your time Mikael, Wolfgang. you too Hans. -- Seems a computer engineer, a systems analyst, and a programmer were driving down a mountain when the brakes gave out. They screamed down the mountain, gaining speed, but finally managed to grind to a halt, more by luck than anything else, just inches from a thousand foot drop to jagged rocks. They all got out of the car: The computer engineer said, "I think I can fix it." The systems analyst said, "No, no, I think we should take it into town and have a specialist look at it." The programmer said, "OK, but first I think we should get back in and see if it does it again."

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Applying \sc for smallcaps across styles
by Hamid,Idris 19 Aug '23

19 Aug '23

Dear gang, Consider the following typescript template: \definefontfeature [myfont-tf-sc] [mode=node,script=latn,language=dflt,trep=no, protrusion=quality,expansion=quality, compose=yes,combine=yes,tlig=yes, kern=yes,liga=yes,onum=yes,cpsp=yes,smcp=yes, % smcp activie trnsl=force] % synonym mapping \starttypescript [serif] [myfont] [name] \loadfontgoodies[myfontlfg] \definefontsynonym [Serif] [MyFontRegular] [features=myfont-tf] \definefontsynonym [SerifItalic] [MyFontItalic] [features=myfont-it] \definefontsynonym [SerifBold] [MyFontBold] [features=myfont-tf] \definefontsynonym [SerifBoldItalic] [MyFontBoldItalic] [features=myfont-it] \definefontsynonym [SerifCaps] [MyFontRegular] [features=myfont-tf-sc] \definefontsynonym [SerifCapsItalic] [MyFontItalic] [features=myfont-it-sc] \definefontsynonym [SerifCapsBold] [MyFontBold] [features=myfont-tf-sc] \definefontsynonym [SerifCapsBoldItalic] [MyFontBoldItalic] [features=myfont-it-sc] \stoptypescript % font mapping \starttypescript [serif] [myfont] \loadfontgoodies[myfontlfg] \definefontsynonym [MyFontRegular] [file:MyFont-Regular] % [features=myfont-tf] \definefontsynonym [MyFontItalic] [file:MyFont-It] % [features=myfont-it] \definefontsynonym [MyFontBold] [file:MyFont-Bold] % [features=myfont-tf] \definefontsynonym [MyFontBoldItalic] [file:MyFont-BoldIt] % [features=myfont-it] \stoptypescript As is well known, \sc selects the small caps only from the Serif font, not from SerifBold etc. But MyFont has smallcaps for every style. So in the typescript we make that explicit and apply the smcp=yes fontfeature to SerifCapsBold etc. But this does not work: \sc still only applies to Serif or SerifCaps. Now I can load a goodies file myfontlfg and do something like this: local smallcaps = { smcp = yes, } But that does not change the behavior of \sc. Yes, there is an easy workaround: \definefontfeature[smallcaps][smcp=yes] \define\sc{\addff{smallcaps}} This works for all styles that have the smcp feature, but I don't like having to redefine a system command. So the questions are: 1) Is there a recommended\better way to get \sc to work across all styles? 2) Are there any edits you would recommend to the above typescript template? Once we're clear on this, will update this quite obsolete page: https://wiki.contextgarden.net/Bold_small_caps Thank you in advance. Best wishes Idris PS Sometimes these inquiries may appear more verbose than needed. That is because I'm trying to write as clearly as possible, not only for the experts and masters, but also for beginners and intermediate users who may run into these things one day, search the archives, etc.. -- Professor Idris Samawi Hamid Department of Philosophy Colorado State University Fort Collins, CO 80523

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[ export to svg ]
by vm 19 Aug '23

19 Aug '23

Is there a (simple) way to export the results of a \startMPpage ... \stopMPpage directly to a svg file? My current route is to import the pdf into inkscape, group path objects by stroke color, then save the result as svg and translate that into a hpgl format for the pen plotter. I guess/hope there is some hidden switch dumping the MPpage directly into a hpgl file ;-) .Floris

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Enable interaction on custom apa cite variant
by Jethro Djan 19 Aug '23

19 Aug '23

Hi, I would like a variant of cite per the APA specification that removes the bracket when quoted in mathematical definitions, theorems, etc. I could of course do it manually for reach using right= and left= but I didn't want to do it every time. I have come up with this MWE: \startbuffer[ref] @book{burago2022course, title={A course in metric geometry}, author={Burago, Dmitri and Burago, Yuri and Ivanov, Sergei}, volume={33}, year={2022}, publisher={American Mathematical Society} } \stopbuffer \setupinteraction[state=start, color=blue] \setupcolors[state=start] \usebtxdataset[ref.buffer] \usebtxdefinitions[apa] \definebtx [apa:cite:theorem] [apa:cite] \startsetups btx:apa:cite:theorem \btxflushauthorname{author} \btxcomma \btxflush{year} \fastsetup{btx:cite:righttext} \stopsetups \setupenumeration[ before={\blank[medium]}, after={\blank[medium]}, alternative=serried, right=, headcommand=\groupedcommand{}{.}, distance=0.5em, width=fit, headstyle=bold, titlestyle=bold, way=bytext, conversion=numbers, prefix=chapter, list=all, title=yes, indentnext=no, ] \defineenumeration[definition][ text=Defintion, style=normal, number=no, ] \starttext \startdefinition{\cite[righttext={{ p.\nbsp 1}}, alternative=theorem][burago2022course]} This is something \stopdefinition \startsubject[title={References}] \placelistofpublications \startsubject \stoptext The problem with this is that the citation is not interactive like it would be if I used apa:cite:authoryear and just removed the parentheses in the options. How do I get it to highlight blue and be interactive like the default behaviour when you turn on interaction? Also this is probably overkill so if there is a better way to achieve this... Jethro

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An error which is not in .log file
by Xavier B. 19 Aug '23

19 Aug '23

After trying to compile a long file with LMTX (previously with MKIV all compiles perfectly), I get an error structures > bookmark: Referències structure > sectioning > chapter @ level 2 : 0.1 -> Referències publications > list > collecting entries using method 'global' and sort order 'default' pages > flushing realpage 296, userpage 294, subpage 296 structures > bookmark: Índex alfabètic structure > sectioning > chapter @ level 2 : 0.2 -> \headtext {index} pages > flushing realpage 297, userpage 295, subpage 297 structures > end of sectionblock 'backpart' close source > level 1, order 147, name './ng-exercicis.conTeXt' (\end occurred inside a group at level 8) 8:0: semisimple group entered at line 276: \begingroup 7:0: semisimple group entered at line 5: \begingroup 6:0: semisimple group entered at line 5: \begingroup 5:0: semisimple group entered at line 114: \begingroup 4:0: semisimple group entered at line 114: \begingroup 3:0: semisimple group entered at line 5: \begingroup 2:0: semisimple group entered at line 5: \begingroup 1:0: semisimple group entered at line 27: \begingroup 0:0: bottomlevel mkiv lua stats > used config file: selfautoparent:/texmf/web2c/texmfcnf.lua mkiv lua stats > used cache path: /home/xan/bin/context-current/tex/texmf-cache/luametatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e mkiv lua stats > resource resolver: loadtime 0.004 seconds, 0 scans with scantime 0.000 seconds, 0 shared scans, 240 found files, scanned paths: <none> mkiv lua stats > stored bytecode data: 512 modules (0.181 sec), 105 tables (0.010 sec), 617 chunks (0.191 sec) mkiv lua stats > traced context: maxstack: 1715, freed: 2, unreachable: 1713 mkiv lua stats > cleaned up reserved nodes: 85 nodes, 11 lists of 671 mkiv lua stats > node memory usage: 291 attribute, 62 dir, 91 glue, 3281 gluespec, 1 glyph, 1 hlist, 1 kern, 2 math, 645 mathspec, 4 penalty, 18 rule, 2 temp, 66305 whatsit mkiv lua stats > node list callback tasks: 16 unique task lists, 18 instances (re)created, 119367 calls mkiv lua stats > h-node processing time: 0.653 seconds including kernel mkiv lua stats > attribute processing time: 0.119 seconds front- and backend mkiv lua stats > driver time: 0.693 seconds mkiv lua stats > used backend: pdf mkiv lua stats > jobdata time: 0.054 seconds saving, 0.000 seconds loading mkiv lua stats > callbacks: file: 69204, saved: 309548, direct: 957, function: 244605, value: 7598, message: 0, bytecode: 617, late 0, total: 632529 (0 per page) mkiv lua stats > randomizer: initialized with value 0.45060333164985 mkiv lua stats > v-node processing time: 0.259 seconds mkiv lua stats > loaded tex modules: 4 requested, 1 found (*-tikz), 3 missing (*-pgfmat *-pgfmath *-pgfrcs) mkiv lua stats > loaded patterns: ca::65 en::1, load time: 0.000 mkiv lua stats > interactive elements: 74 references, 950 destinations mkiv lua stats > loaded fonts: 13 files: latinmodern-math.otf, lmmono10-regular.otf, lmroman10-bold.otf, lmroman10-italic.otf, lmroman10-regular.otf, lmromancaps10-regular.otf, lmromanslant10-regular.otf, lmsans10-bold.otf, lmsans10-boldoblique.otf, lmsans10-regular.otf, texgyreschola-bold.otf, texgyreschola-math.otf, texgyreschola-regular.otf mkiv lua stats > font engine: otf 3.133, afm 1.513, tfm 1.000, 68 instances, 51 shared in backend, 8 common vectors, 43 common hashes, load time 1.181 seconds mkiv lua stats > body font sizes: defined: 10pt 11pt 12pt 14.4pt 17.3pt 20.7pt 4pt 5pt 6pt 7pt 8pt 9pt, undefined: 11.2pt 12.8pt 14pt 16.8pt 16pt 19.2pt 24pt 30pt 36pt mkiv lua stats > metapost: 0.000 seconds, loading: 0.033, execution: 0.000, n: 3, average: 0.011, instances: 1, luacalls: 14196 (file: 13784, text: 0, script: 393, log: 19), memory: 3.881 M mkiv lua stats > math tweaking time: 0.474 seconds, 84 math goodie tables mkiv lua stats > math processing time: 0.292 seconds mkiv lua stats > graphics processing time: 1.768 seconds including tex, 268 processed images, 57 unique asked, 27 bad names mkiv lua stats > publications load time: 0.005 seconds, 2963 bytes, 11 definitions, 0 shortcuts mkiv lua stats > pdf annotations: 74 links (74 unique), 0 special mkiv lua stats > font embedding time: 0.018 seconds, 13 fonts mkiv lua stats > result saved in file: ng-exercicis.pdf, compresslevel 1, objectcompresslevel 3 mkiv lua stats > positions: 311 collected, 0 deltas, 307 shared partials, 133 partial entries mkiv lua stats > cross referencing: 713 identified, 269 unknown mkiv lua stats > used platform: linux-64, type: unix, binary subtree: texmf-linux-64 mkiv lua stats > used engine: luametatex version: 2.10.10, functionality level: 20230803, format id: 697, compiler: gcc mkiv lua stats > tex properties: 806417 hash slots used of 2097152, 70025 control sequences, approximate memory usage: 82 MB mkiv lua stats > lua properties: engine: lua 5.4, used memory: 213 MB, ctx: 198 MB, max: 306 MB, symbol mask: utf (τεχ) mkiv lua stats > runtime: 20.941 seconds, 297 processed pages, 297 shipped pages, 14.183 pages/second mtx-context | fatal error: return code: 1 but this not appear in .log file. What can I do for seeing what happens? Thanks in advance, Xavier PS: I could share my sourcecode with public git repo if you prefer.

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