- ntg-context - NTG Mailing Lists

Re: [NTG-context] Use \unit for value and uncertainty
by Benjamin Buchmuller 09 May '20

09 May '20

I know this is quite an old thread, but here is a minimal parser (\units with an “s”) that wraps around \digits and \unit to produce an acceptable output. As I frequently need to write ranges (or measures of uncertainty), I find it convenient to able to type \units{4.0 to 5.0 centi meter} than \digits{4.0}\,to\,\unit{5.0 centi meter}. Also, the parser will take care of exponents and bracket them accordingly. :D ranges: keyword “to”: 4.0 – 5.0 cm SEM: keyword “se”: 4.5 ± 0.5 cm SD: keyword “sd”: 4.5 (0.5) cm If no keyword is present, the default behaviour is \unit{…}. The code is not perfect (and the level of abstraction potentially not yet sufficient to make it part of the phys-dim.mkiv source), but maybe helpful. \starttext \startluacode userdata = userdata or {} function userdata.units(input) tbl = string.explode(input) if tbl[2] == "to" then context.digits(tbl[1]) context.phys_units_space() context("--") context.phys_units_space() context.unit(table.concat(tbl, " ", 3)) elseif tbl[2] == "se" then local sx1 = string.split(tbl[1], "e") local sx2 = string.split(tbl[3], "e") if (sx1[2] == sx2[2]) and not (sx1[2] == nil) then context("(") context.digits(sx1[1]) context.phys_units_space() context("±") context.phys_units_space() context.digits(sx2[1]) context(")") context.digits("e" .. sx1[2]) context.phys_units_space() context.unit(table.concat(tbl, " ", 4)) else context.digits(tbl[1]) context.phys_units_space() context("±") context.phys_units_space() context.unit(table.concat(tbl, " ", 3)) end elseif tbl[2] == "sd" then local sx1 = string.split(tbl[1], "e") local sx2 = string.split(tbl[3], "e") if (sx1[2] == sx2[2]) and not (sx1[2] == nil) then context.digits(sx1[1]) context.phys_units_space() context("(") context.digits(sx2[1]) context(")") context.digits("e" .. sx1[2]) context.phys_units_space() context.unit(table.concat(tbl, " ", 4)) else context.digits(tbl[1]) context.phys_units_space() context("(") context.digits(tbl[3]) context(")") context.unit(table.concat(tbl, " ", 4)) end else context.unit(table.concat(tbl, " ")) end end \stopluacode \def\units#1{\ctxlua{userdata.units("#1")}} Car 1 drives \units{4 to 5.2 kilo meter per hour}. Car 2 drives \units{30.1 to 40.5 kilo meter per hour}. Car 3 drives \units{40.= to 50.= kilo meter per hour}. The average speed was \units{35,000 se 5000 meter per hour}. The average speed was \units{35e3 se 0.5e3 meter per hour}. The average speed was \units{35.2e3 se 5e2 meter per hour}. \stoptext The average speed was \units{35.2 se 5e2 meter per hour}. The average speed was \units{_3.2 sd 5 meter per hour}.

2 1

Current version 2020.05.09 08:55 not working
by Otared Kavian 09 May '20

09 May '20

Hi Hans, I just updated to the latest version 2020.05.09 08:55 but when trying your examples with \mathopenup and friends noticed that ConTeXt is stuck with resolvers > lua > loading file '/context-osx-64/tex/texmf-context/tex/context/base/mkiv/math-spa.lua' succeeded or with context report > file: cont-en-status.html and other such messages. Actually even with a simple example like \starttext Test \stoptext one cannot run the latest version at least on MacOS X (I did remove the texmf cache). When in a Terminal window I issue the commands context --make -all I see that there is an error message like: tex error > tex error on line 2981 in file math-ini.mkxl: ! Undefined control sequence l.2981 \normalsupmarkmode \plusone % 2 also disable ^[^+] in text mode <empty file> The control sequence at the end of the top line of your error message was never \def'ed. You can just continue as I'll forget about whatever was undefined. Best regards: OK

1 0

sunny friday afternoon update
by Hans Hagen 08 May '20

08 May '20

Hi, I uploaded a new version of lmtx and there are some experimental features that users cna play with so that we can think about related interfacing. (I won't mention soem in the lua department that I'm still exploring myself.) When you use a math symbol its class property determines the spacing. One can use \mathopen etc to wrap such a character an dmake it behave different. There is a new mechanism to overload that property in a different way: \startlines $x\mathopen {!}+123+\mathclose {!}x$ $x\tomathopen ! +123+\tomathclose ! x$ $x\mathclose {!}+123+\mathopen {!}x$ $x\tomathclose ! +123+\tomathopen ! x$ $x ! +123+ ! x$ \stoplines It uses a low level primitive, for the open case: \Umathclass 4 with the number being the desired class. A more experimental features concerns native prescripts. Consider the following input \blank \hbox{$ {\tf X}^1_2^^3__4 \quad {\tf X}^1 ^^3 \quad {\tf X} _1 __4 \quad {\tf X} ^^3 \quad {\tf X} __4 \quad {\tf X}^^3 __4 $} \blank or with the control sequence variants: \blank \hbox{ \ruledhbox{${\tf X}\Usuperscript{a} $} \ruledhbox{${\tf X} \Usubscript{b} $} \ruledhbox{${\tf X}\Usuperscript{a}\Usubscript{b} $} \ruledhbox{${\tf X}\Usuperscript{a} \Usuperprescript{c} $} \ruledhbox{${\tf X} \Usubscript{b} \Usubprescript{d}$} \ruledhbox{${\tf X}\Usuperscript{a}\Usubscript{b}\Usuperprescript{c}\Usubprescript{d}$} \ruledhbox{${\tf X} \Usuperprescript{c} $} \ruledhbox{${\tf X} \Usubprescript{d}$} \ruledhbox{${\tf X} \Usuperprescript{c}\Usubprescript{d}$} } \blank A few days ago there was a discussion about tweaking some math parameters, like the radical spacing. I made a macro that deals with it: $\mathopenupparameter\Umathradicalvgap{10.5}\sqrt[3]{x}$ (this one is also in mkiv, be it slightly less efficient because in lmtx we can use \Umathparameter to query the state of a variable) Already present was a variant on \over which normally is used like {{1}\over{2}} i.e. the only time when tex looks back and needs to tweak styles. The alternative is: $\Uover{1}{2}$ etc which looks forward but is otherwise compatible, apart from supporting an optional keyword $\Uover style \scriptscriptstyle{1}{2}$ etc $\Uover style \textstyle{1}{2}$ etc At some point I will adapt some context code to this. Anyway, these are things that low level math users might like to play with. There are few more things but those will probably go unnoticed. Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------

1 0

Compile only one new component in a project
by Fabrice Couvreur 08 May '20

08 May '20

Hi, Here is part of a project that is starting to be heavy ; when i add a chapter i do context seconde.tex How do I compile only the chapter I just added ? Thank you. Fabrice \startproduct Seconde \environment modules \environment specialite-style \environment specialite-macros \startfrontmatter \component specialite-titlepage \component specialite-contents \stopfrontmatter \startbodymatter \component chapter-1-seconde \component chapter-2-seconde \component chapter-3-seconde \component chapter-4-seconde \stopbodymatter \stopproduct

4 5

mkiv digits/units zero padding not working
by Benjamin Buchmuller 07 May '20

07 May '20

Hi, I’m trying to get \digits{15.0=}±\digits{1.00} \digits{_8.12}±\digits{0.34} horizontally aligned as 15.0 ±1.00 8.12±0.34 But I get 15.0±1.00 8.12±0.34 instead. From the source (phys-dim.mkiv), I can see that “=“ should expand to \hphantom{0}. (I think \zeropoint in the table is outdated, since \def\zeropoint\hphantom{0} does not solve the problem either.) I can’t use tabulate or alignment in math mode for this problem unfortunately. Any hints would be very welcome. Thanks Benjamin

2 5

mkiv \digits{2.0=} zero padding feature request
by Benjamin Buchmuller 07 May '20

07 May '20

Hi, As Wolfgang has figured out, zero padding in \digits only works for trailing (and omitted) zeroes when immediately preceded by the decimal separator. It would be nice if this would work even if there is a number preceding, so that \digits{3.1=}x\crlf \digits{3.==}x\crlf \digits{3.14}x would align at the decimal separator when right aligned. This is useful in some circumstances, where the number of significant digits varies between sources, so that one needs to typset for example \digits{3.1=}±\digits{0.5}\crlf \digits{3.28}±\digits{0.12} Thanks! Benjamin

1 0

\placetable[location=split] reference ??
by Benjamin Buchmuller 07 May '20

07 May '20

Hi, I would like to reference a table of the following structure. \starttext \startplacetable[reference=tab1,title={A table},location=split] \startxtable \startxrow \startxcell hi \stopxcell \stopxrow \stopxtable \stopplacetable In Table \in[tab1] \stoptext It has [location=split], which I need this because xtable doesn’t like to be placed without a split; and apparently neither does it accept the \placetable[ref]{...} syntax. However, the reference is now no longer detected. I can see that the split table’s caption is about to become "Table 1.a.", "Table 1.b" etc. and I appreciate that this is potentially a quite complex mechanism anyways, but if there was any chance to get a reference as “Table 1”, I would be helped a lot. On similar lines, is there a way to have “Table 1 (continued).” in the caption? Cheers Benjamin

1 1

long caption in 2-page spread
by jbf 07 May '20

07 May '20

The following excellent solution (see below) to a 2-page spread of an image was given me by Hans (I had been completely unaware of the command \startspread. It appears to be recent and undocumented, but it certainly simplifies matters). But in my case the title is a lengthy sentence, rather than the 4-word 'This is a cow'. And even though I have been able to split the line, e.g. title={this is my very, very, very,\\ very etc. etc. long title}, what happens is that part of the caption still appears on the right-hand page of the spread. Is there a way that I can limit the appearance of the caption to just one (the left-hand) page? In other words, so the figure is spread but not the caption? Or alternatively, have the caption neatly split across the two pages with appropriate space inbetween? I tried various combinations, including an \hfill halfway through the title, but to no avail. Perhaps this is asking too much, but there may be a workaround. Julian \startpostponing \setuppagenumbering[state=stop] \startspread \startplacefigure[location=here,title={This is a cow!}] \externalfigure[cow.pdf][height=\textheight]% \stopplacefigure \stopspread \setuppagenumbering[state=start] \stoppostponing

2 2

how to interrupt doublesided in particular instance
by jbf 06 May '20

06 May '20

Hi list, I have a document set up in a standard way (\setuppagenumbering[alternative=doublesided]) to ensure that new chapters always begin on a recto page, but in one particular instance only, I want the new chapter to start on the next (verso) page instead of creating a blank then starting on the recto side. I thought I might have been able to force that with \page[no] immediately after the previous chapter concluded or before \chapter{My new chapter}, but this command is ignored (and may well be the wrong command to achieve what I want). Is there a way to interrupt the setup so the new chapter in this case can start on the verso page? Julian

3 4

conflict between colored emoji and save/restore
by Ulrike Fischer 06 May '20

06 May '20

When using a colored emoji font directly after a save/restore pair in context mkiv following text gets lost: \pdfvariable compresslevel=0 \font\fontB={file:seguiemj.ttf:mode=node;+colr;} \starttext \pdfextension save\relax \pdfextension restore\relax {\fontB \char"2603} xxxx %xxxx is not there \stoptext The problem is that the coordinate transformation from the restore ends inside the emoji code: /Span << /ActualText <feff2603> >> BDC q 0.000 g 1 0 0 1 -70.867 -714.33967 cm %<---- BT (Such an save/restore part is e.g. inserted with a scaled graphics: \externalfigure[tinypicture.pdf][width=1cm]) -- Ulrike Fischer http://www.troubleshooting-tex.de/

1 0