March 2016 - ntg-context - NTG Mailing Lists

Re: [NTG-context] Hanging punctuation misalignment in footnotes
by Wolfgang Schuster 29 Mar '16

29 Mar '16

Am 22.02.2014 um 01:25 schrieb Jan Tosovsky <j.tosovsky(a)email.cz>: > On 2014-02-22 Jan Tosovsky wrote: >> >> when hanging in footnotes is enabled and the starting character is a >> punctuation, it is not protruded. However, the same character in the >> footnote body works fine. When both cases are close each other, it >> looks weird, see the screenshot: >> >> http://drifted.in/other/footnote_alignment.png >> >> Would it be possible make this behaviour uniform - either do not >> protrude it >> on the starting (left) edge or protrude it everywhere? >> > > A minimal example is available at > http://drifted.in/other/sample.tex There are two things which prevent the protrusion of the opening quote at the begin of the paragraph. One of these can be avoided with a change in the setup for footnotes but not the other without destroying the layout of the footnote text. One problem is the way how context places the footnote number in front of the text, by default context uses the \llap command to move the number into the left margin but this prevents also the protrusion of the opening quote. You can avoid this problem when you change the footnote setup to \setupnotation[footnote][alternative=margin]. <example> \definefontfeature[default][default][expansion=quality,protrusion=quality] \setupbodyfont[modern] \setupalign[hanging] \showframe[text][text] \starttext »Text« \noindent\hbox to 0pt{}»Text« \noindent\hbox to 0pt{\hss}»Text« \stoptext </example> The second problem which prevents the opening quote to protrude are the struts which are added by context at the begin and end of the footnote content and there is no way to disable them because they are needed to have proper spacing between the individual footnote texts on the same page. <example> \definefontfeature[default][default][expansion=quality,protrusion=quality] \setupbodyfont[modern] \setupalign[hanging] \showframe[text][text] \starttext »Text« \strut »Text« \stoptext </example> In the example below where I took care of these two problems (don’t take care of \begstrut in this way in your real document because it will cause many problems, it’s just for educational purpose) to show you this is what caused the unwanted output. <example> \definefontfeature[default][default][expansion=quality,protrusion=quality] \setupbodyfont[modern] \setupalign[hanging] \showframe[text][text] \setupnotation[footnote][alternative=margin,align=hanging] \starttext \let\begstrut\relax First Footnote.\footnote{»\input{ward}«} Second Footnote.\footnote{»\input{ward}«} \stoptext </example> Wolfgang

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Troubles installing on windows
by Vya. Y. 28 Mar '16

28 Mar '16

> looks like a new binary and old context .. .maybe something went wrong in the update? Hans Thank you, Hans. Where can I download the latest ConTeXt, with Windows binaries? I cannot find it on Pragma Ade and, unfortunatelly, many links in the garden are broken. Regards, Vyatcheslav

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Re: [NTG-context] Length range control of the last line of paragraph
by Hans Hagen 26 Mar '16

26 Mar '16

On 3/26/2016 2:31 PM, Jan Tosovsky wrote: > On 2016-03-26 Hans Hagen wrote: >> On 3/25/2016 10:57 PM, Jan Tosovsky wrote: >>> On 2016-03-25 Hans Hagen wrote: >>>> On 3/25/2016 2:40 PM, Jan Tosovsky wrote: >>>>> On 2016-03-24 Hans Hagen wrote: >>>>>> On 3/24/2016 8:36 PM, Jan Tosovsky wrote: >>>>>>> >>>>>>> We basically need: >>>>>>> <text><glue min-width='XX' max-width='hsize-3*indent'> >>>>>>> >>>>>>> and I thought this is exactly what \parfillskip ensures >>>>>>> \parfillskip XX plus (hsize - 3*indent) >>>>>>> >>>>>> the fil is taken into account when calculating the best break >>>>>> points and then the XX is fixed but plus/minus can lead to if >>>>>> being less or more, all relative to other fill (distributed) >>>>>> >>>>>> so, XX plus (hsize - 3*indent) is not a fixed value, it's XX >>>>>> or more >>> >>> So the following \parfillskip specification finally seems to be >>> what I was looking for ... >>> >>> \parfillskip \lastlinemingap plus \dimexpr\availablehsize-\lastlineminlength-\lastlinemingap\relax >>> >> >> \parfillskip \lastlinemingap plus 1fill >> >> works just as well >> > > I am getting slightly different results on several pages. The number of problematic cases is lower in my variant so I hope it makes still sense. > >> try \ward{}okay i.e. a short word at the end > > Hmm, I indeed tested my approach with bad example. > Now your previous examples make more sense to me :-) > >> for your case i see no solution apart from heuristic lua magic > > Bad news. But I hope my parfillskip will work for majority cases and these problematic with words shorter than parindent+tolerance can be fixed afterwards by joining them with previous words using non-breaking space. that is what previously posted alternative hyphenater code does: making sure that there are some reasonable amount of characters / words > I'll look into your 'crap' paragraph builder lua code if this exception could be handled programmatically without touching the source file (i.e. test for short last line and treat leading whitespace as it was '~' if necessary). > > Jan > > ___________________________________________________________________________________ > If your question is of interest to others as well, please add an entry to the Wiki! > > maillist : ntg-context(a)ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context > webpage : http://www.pragma-ade.nl / http://tex.aanhet.net > archive : http://foundry.supelec.fr/projects/contextrev/ > wiki : http://contextgarden.net > ___________________________________________________________________________________ >

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Footnote markers
by Robert Krug 26 Mar '16

26 Mar '16

Greetings, Is there a way to attach a footnote marker to the text following the footnote, rather than to the text preceding? That is, given something like: Some text \footnote{note.} more text. I would get (using an asterisk here, but that is not important): Some text *more text. rather than: Some text* more text. I am trying to re-typeset a couple of documents from circa 1600 where it is done that way. Many thanks for Context. It is quite nifty. Robert

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Re: [NTG-context] Length range control of the last line of paragraph
by Hans Hagen 25 Mar '16

25 Mar '16

On 3/25/2016 2:40 PM, Jan Tosovsky wrote: > On 2016-03-24 Hans Hagen wrote: >> On 3/24/2016 8:36 PM, Jan Tosovsky wrote: >>> >>> We basically need: >>> <text><glue min-width='XX' max-width='hsize-3*indent'> >>> >>> and I thought this is exactly what \parfillskip ensures >>> \parfillskip XX plus (hsize - 3*indent) >>> >> >> the fil is taken into account when calculating the best break points >> and then the XX is fixed but plus/minus can lead to if being less >> or more, all relative to other fill (distributed) >> >> so, XX plus (hsize - 3*indent) is not a fixed value, it's XX or more >> >> take this: >> >> \ruledhbox to 10cm {x\hskip0pt plus 1cm x} >> >> the skip will stretch more than 1cm > > I can see. > > But sorry for my ignorance, as far as I understand, \parfillskip is added to the end of the paragraph, so we have rather > \ruledhbox to 10cm {x\hskip0pt plus 1cm} % without that 'x' at the end, so no 'glue' distribution is performed there is but not enough stretch so there will be a warning ... you can see it from \ruledhbox to 10cm {x} \ruledhbox to 10cm {x\hskip0pt plus 1cm} \ruledhbox to 10cm {x\hskip0pt plus 1fill} > If '\parfillskip 2em plus (hsize - 3*(2em) - 2em)' is specified, I still think we should get space of width at least 2em '####' which can be extended as indicated by hyphens '-' here: > > emememememememememememememememememememem > emememememem------------------------#### > > So there are two last line lengths extrems: > (shortest) > emememememememememememememememememememem > emememememem > > (longest) > emememememememememememememememememememem > emememememememememememememememememem > > I slightly modified your example and even with verystrict settings all seems to be fine (except too narrow blocks, which is not my use case). > > \showmakeup[glue] > > \setupindenting[yes,2em] > > \edef\ward{\cldloadfile{ward}} > > \setupalign[verystrict,hz] > > \starttext > \dorecurse{100}{ > \hsize\dimexpr\textwidth-#1mm\relax > \dimen0=\hsize > \advance\dimen0 by -8em % 3*em - 2em > \parfillskip 2em plus \dimen0\relax > \ward \par > \parfillskip 2em plus \dimen0\relax > \ward \par > \startnarrower[left] > \parfillskip 2em plus \dimen0\relax > \ward \par > \stopnarrower > \startnarrower[left] > \parfillskip 2em plus \dimen0\relax > \ward \par > \stopnarrower > \page > } > \stoptext > > The problem here this settings cannot be done globally if there are various block widths. you always add a 2em skip so there will never be a word touching the right margin in the last line; furthermore you permit some stretch, but as said before this stretch is not frozen, it's a ratio relative to other stretch \ruledhbox to 10cm {x\hskip2em plus 1cm x\hskip2em plus 1cm x} so, the plus 1cm can become more than that depending on needs (onlky the warning is influenced > Can I somehow define command globally which takes local block widths? > > \parfillskip #1 plus \localhsize-#1-#2, where > #1 gap width > #2 shortest line width \availablehsize i think that the #1 gap is irrelevant and actually makes it worse as it add space while you actually want it to move the other direction anyway, this is why using a couple of non-hyphenated words or a minimum amount of characters makes more sense ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------

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Re: [NTG-context] Length range control of the last line of paragraph
by Hans Hagen 25 Mar '16

25 Mar '16

On 3/25/2016 2:40 PM, Jan Tosovsky wrote: > On 2016-03-24 Hans Hagen wrote: >> On 3/24/2016 8:36 PM, Jan Tosovsky wrote: >>> >>> We basically need: >>> <text><glue min-width='XX' max-width='hsize-3*indent'> >>> >>> and I thought this is exactly what \parfillskip ensures >>> \parfillskip XX plus (hsize - 3*indent) >>> >> >> the fil is taken into account when calculating the best break points >> and then the XX is fixed but plus/minus can lead to if being less >> or more, all relative to other fill (distributed) >> >> so, XX plus (hsize - 3*indent) is not a fixed value, it's XX or more >> >> take this: >> >> \ruledhbox to 10cm {x\hskip0pt plus 1cm x} >> >> the skip will stretch more than 1cm > > I can see. > > But sorry for my ignorance, as far as I understand, \parfillskip is added to the end of the paragraph, so we have rather > \ruledhbox to 10cm {x\hskip0pt plus 1cm} % without that 'x' at the end, so no 'glue' distribution is performed > > If '\parfillskip 2em plus (hsize - 3*(2em) - 2em)' is specified, I still think we should get space of width at least 2em '####' which can be extended as indicated by hyphens '-' here: > > emememememememememememememememememememem > emememememem------------------------#### > > So there are two last line lengths extrems: > (shortest) > emememememememememememememememememememem > emememememem > > (longest) > emememememememememememememememememememem > emememememememememememememememememem > > I slightly modified your example and even with verystrict settings all seems to be fine (except too narrow blocks, which is not my use case). > > \showmakeup[glue] > > \setupindenting[yes,2em] > > \edef\ward{\cldloadfile{ward}} > > \setupalign[verystrict,hz] > > \starttext > \dorecurse{100}{ > \hsize\dimexpr\textwidth-#1mm\relax > \dimen0=\hsize > \advance\dimen0 by -8em % 3*em - 2em > \parfillskip 2em plus \dimen0\relax > \ward \par > \parfillskip 2em plus \dimen0\relax > \ward \par > \startnarrower[left] > \parfillskip 2em plus \dimen0\relax > \ward \par > \stopnarrower > \startnarrower[left] > \parfillskip 2em plus \dimen0\relax > \ward \par > \stopnarrower > \page > } > \stoptext > > The problem here this settings cannot be done globally if there are various block widths. > > Can I somehow define command globally which takes local block widths? > > \parfillskip #1 plus \localhsize-#1-#2, where > #1 gap width > #2 shortest line width As expected, results are on the average worse than an occasional relatively short last line. One cannot expect to find good solutions when the solutionspace is too small. \startluacode function builders.paragraphs.constructors.methods.crap(head) local needed = 2 * tex.parindent if needed > 0 then local maximum = tex.hsize local cycles = 500 local step = 65536 local done = 0 local tail = node.tail(head) while true and done < cycles do local h = nodes.copy_list(head) local t = nodes.tail(h) local d, r = tex.linebreak(h) local l = node.tail(d) if d ~= l and l.subtype == nodes.listcodes.line then local natural = nodes.dimensions(l.list,t.prev) node.flush_list(d) if natural >= needed then break elseif natural >= maximum then break else local maybe = maximum - needed - done*step if maybe > 0 then tail.width = maybe tail.stretch = 0 tail.shrink = 0 done = done + 1 else break end end else node.flush_list(d) end end if done > 0 then logs.report("crap","last line enforced in %i steps",done) end end end \stopluacode \edef\ward {\cldloadfile{ward}} \defineparbuilder[crap] \starttext \dorecurse{20} { \dostepwiserecurse{0}{80}{2} { \indenting[##1mm,yes] \dontcomplain \setupalign[tolerant,stretch] \blackrule[width=\textwidth] \hsize=\dimexpr\textwidth-#1pt\relax \ward \par \startparbuilder[crap]% \ward \par \ward \par \stopparbuilder \page } } \stoptext ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------

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Re: [NTG-context] Length range control of the last line of paragraph
by Hans Hagen 25 Mar '16

25 Mar '16

On 3/24/2016 8:36 PM, Jan Tosovsky wrote: > On 2016-03-24 Hans Hagen wrote: >> On 3/23/2016 8:14 PM, Jan Tosovsky wrote: >>> On 2016-03-22 Hans Hagen wrote: >>>> On 3/22/2016 9:57 PM, Jan Tosovsky wrote: >>>>> On 2016-03-22 Hans Hagen wrote: >>>>>> On 3/21/2016 8:14 PM, Jan Tosovsky wrote: >>>>>>> >>>>>>> when paragraphs are separated by indenting the first line >>>>>>> (instead of an empty line), these rules should be followed: >>>>>>> >>>>>>> (2) the last line is shorter than block width >>>>>>> xxxxxxxxxxxxxxxx >>>>>>> xxxxxxxxxxxxxx >>>>>>> xxxxxxxxxxxxxx >>>>>>> xxxxxxxxxxxxxxxx >>>>>>> >>>>>>> (ad 2) This can be done using \parfillskip XXpt plus 1fil >>>>>>> (where XX is required gap) >>>>>> >>>>>> setting the XXpt is tricky as it might lead to underful or >>>>>> overful cases when that amount start interfering with an optimal >>>>>> solution (as it's seen as acceptable overflow in some direction) >>>>> >>>>> underful or overful where? in previous lines? I am quite lost here >>>> >>>> \starttext >>>> >>>> \setupalign[tolerant,stretch] >>>> \dorecurse{100}{ >>>> \hsize\dimexpr\textwidth-#1pt\relax >>>> \parfillskip -4em plus 1 fill >>>> \input tufte >>>> \page >>>> } >>>> >>>> \stoptext >>>> >>>> page 43 >>> >>> In my output I can see overful of the last line on pages 38-46. >>> >>> How can this happen? Isn't it a clear bug? >>> >>> What exactly mean 'that amount start interfering with an optimal >>> solution'? Isn't parfillskip settings taken already into an >>> account when composing the paragraph? >> >> it's just a skip added at the end of the line ... so like any skip >> and if you give it a fill that will be taken into account in >> linebreaks (just like other fill) >> >> \starttext >> >> \dorecurse{100}{testtesttesttesttest #1 \hskip0ptplus1fill\relax} >> >> \stoptext >> > > To be honest, I can't still decipher the reason why the line is not broken... > > We basically need: > <text><glue min-width='XX' max-width='hsize-3*indent'> > > and I thought this is exactly what \parfillskip ensures > \parfillskip XX plus (hsize - 3*indent) > > Or is it impossible in TeX to achieve such rule? the fil is taken into account when calculating the best break points and then the XX is fixed but plus/minus can lead to if being less or more, all relative to other fill (distributed) so, XX plus (hsize - 3*indent) is not a fixed value, it's XX or more take this: \ruledhbox to 10cm {x\hskip0pt plus 1cm x} the skip will stretch more than 1cm \ruledhbox to 10cm {x\hskip0pt plus 1cm\relax x% x\hskip0pt plus 2cm\relax x} now the glue gets distributed 1:2, so now you can guess \ruledhbox to 10cm {x\hskip1mm plus 1cm\relax x% x\hskip8mm plus 2cm\relax x} > Are there other ways? I can think of: > <text><space width='XX'><glue min-width='0' max-width='hsize-3*indent-XX'> > > But in this case that space at the end can be completely swallowed (by negative glue). I've tried it in the following example, but there is another problem from page 58 - blank line. But my TeX interpretation of the above pseudo code may be inappropriate... you can see what glue eventually is used with: \showmakeup[glue] \start \parfillskip 123pt \relax \input tufte \par \parfillskip 123pt plus 1fil \relax \input tufte \par \parfillskip 123pt \relax \input tufte \par \parfillskip -123pt plus 1fil \relax \input tufte \par \stop ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------

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Are nested sections possible?
by mica＠silentumbrella.com 24 Mar '16

24 Mar '16

Greetings, Is it possible to have \starttext \startchapter Hey a chapter! \startsection something.one \startsection someting.one.one \startsection something.one.one.one \stopsection \stopsection \stopsection \stopchapter \stoptext render as: 1. Hey a chapter! 1.1 something.one 1.1.1 something.one.one 1.1.1.1 something.one.one.one Thanks, Mica

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Re: [NTG-context] Length range control of the last line of paragraph
by Hans Hagen 24 Mar '16

24 Mar '16

On 3/23/2016 8:14 PM, Jan Tosovsky wrote: > On 2016-03-22 Hans Hagen wrote: >> On 3/22/2016 9:57 PM, Jan Tosovsky wrote: >>> On 2016-03-22 Hans Hagen wrote: >>>> On 3/21/2016 8:14 PM, Jan Tosovsky wrote: >>>>> >>>>> when paragraphs are separated by indenting the first line >>>>> (instead of an empty line), these rules should be followed: >>>>> >>>>> (2) the last line is shorter than block width >>>>> xxxxxxxxxxxxxxxx >>>>> xxxxxxxxxxxxxx >>>>> xxxxxxxxxxxxxx >>>>> xxxxxxxxxxxxxxxx >>>>> >>>>> (ad 2) This can be done using \parfillskip XXpt plus 1fil >>>>> (where XX is required gap) >>>> >>>> setting the XXpt is tricky as it might lead to underful or >>>> overful cases when that amount start interfering with an optimal >>>> solution (as it's seen as acceptable overflow in some direction) >>> >>> underful or overful where? in previous lines? I am quite lost here >> >> \starttext >> >> \setupalign[tolerant,stretch] >> \dorecurse{100}{ >> \hsize\dimexpr\textwidth-#1pt\relax >> \parfillskip -4em plus 1 fill >> \input tufte >> \page >> } >> >> \stoptext >> >> page 43 > > In my output I can see overful of the last line on pages 38-46. > > How can this happen? Isn't it a clear bug? > > What exactly mean 'that amount start interfering with an optimal solution'? > Isn't parfillskip settings taken already into an account when composing the paragraph? > > Huh. I am puzzled. it's just a skip added at the end of the line ... so like any skip ... and if you give it a fill that will be taken into account in linebreaks (just like other fill) \starttext \dorecurse{100}{testtesttesttesttest #1 \hskip0ptplus1fill\relax} \stoptext -- ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------

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metafun
by Herbert Voss 24 Mar '16

24 Mar '16

It is a hard job to understand how all works ... I tried to create the first example of the documentation "Page 257 Anchors and layers", but failed with mkii and iv. The page is created, but without the graphical elements. Not using \startbuffer--\stopbuffer makes no difference. MTXrun | current version: 2010.07.30 11:35 Herbert \starttext \section {Anchors and layers} \startbuffer[a] \setMPpositiongraphic{X-1}{mypos:arrow}{to=X-2} \setMPpositiongraphic{X-2}{mypos:arrow}{to=X-3} \stopbuffer \startbuffer[b] In a previous section we saw that some \hpos {X-1} {words} were \hpos {X-2} {circled} and connected by an \hpos {X-3} {arrow}. As with most things in \CONTEXT, marking these words is separated from declaring what to do with those words. This paragraph is keyed in as: \stopbuffer \getbuffer[a,b] \stoptext

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