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small bug with the 'frac' font feature and linux libertine
by Taco Hoekwater 18 Jan '19

18 Jan '19

Hi, One of Hans van der Meer’s notes has this definition: \definefontfeature[fraction][frac=yes] \definehighlight[textfraction][style={\feature[+][fraction]}] but 'frac' sadly does not quite work correct with Linux Libertine. It looks like somehow the substitution context is off when the command is used immediately after a digit? I am not sure how to debug this properly, nor how to fix it even if I could find root cause of the problem, so I am posting here in the hope someone knows how to fix it. (adding \hskip1sp works as well as a full space, btw) Example attached. Best wishes, Taco

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spac-hor.mkiv: Missing delimiter for \quad
by Wolfgang Schuster 27 Dec '18

27 Dec '18

Hi Hans, the definitions for \quad, \qquad and \enskip need a \relax at the end. - \unexpanded\def\enskip{\hskip.5\emwidth} - \unexpanded\def\quad {\hskip \emwidth} - \unexpanded\def\qquad {\hskip 2\emwidth} + \unexpanded\def\enskip{\hskip.5\emwidth\relax} + \unexpanded\def\quad {\hskip \emwidth\relax} + \unexpanded\def\qquad {\hskip 2\emwidth\relax} Wolfgang

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interface file typos and a question
by Taco Hoekwater 17 Dec '18

17 Dec '18

Hi, Whenever I have a few off minutes, I am working on an extension to the wiki. The idea is to have an extra extension tag <syntax>…</syntax> which fetches the html syntax of a ConTeXt command from a wiki database table. More later on that. While working on that though, I found a few small issues with the xml interface files. Here are a few typos (character swaps): <cd:command ategory="fonts" clevel="style" file="font-ini.mkiv" name="switchstyleonly”> <cd:command evel="document" file="buff-ini.mkiv" generated="yes" lcategory="buffer" name="buffer" type="environment" variant="instance”> <cd:command ategory="fonts" clevel="style" file="font-fea.mkvi" name="subtractfeature" variant="direct"> And these two are the only “system conditional”s, which probably means they should just be “system”: <cd:command category="verbatim" file="buff-ver.mkiv" level="system conditional" name="doifelsetypingfile"> <cd:command category="verbatim" file="buff-ver.mkiv" level="system conditional" name="doiftypingfileelse"> A few other commands have no level attribute at all (maybe intentional): <cd:command category="xml" file="strc-tag.mkiv" name="element" type="environment”> <cd:command category="whitespace" file="spac-ver.mkiv" name="unpacked" type="environment”/> <cd:command category="whitespace" file="spac-ver.mkiv" name="locallinecorrection" type="environment”> <cd:command category="columns" file="page-mul.mkiv" name="columnspan" type="environment”> <cd:command category="colors" file="colo-ini.mkiv" name="definepalet"> <cd:command category="colors" file="colo-ini.mkiv" name="transparent" type="environment"> Besides those, I also have an actual question: Is there an intended difference between <cd:sequence> <cd:instance value="framed"/> </cd:sequence> and <cd:sequence> <cd:variable value="highlight"/> </cd:sequence> (cd:instance versus cd:variable)? Best wishes, Taco

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x-setups-basics.mkiv
by Wolfgang Schuster 26 Nov '18

26 Nov '18

Hi Hans, the argument check in \cmd_show_setup_yes has to go away. \def\cmd_show_setup_yes[#1]% - {\iffirstargument - \cmd_show_setup_nop{#1}% - \else - \expandafter\cmd_show_setup_nop - \fi} + {\cmd_show_setup_nop{#1}} Wolfgang

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core-env.mkiv
by Wolfgang Schuster 18 Nov '18

18 Nov '18

Hi, on line 800 you pick the wrong number of arguments. \unexpanded\def\doifelseemptyvariable#1#2% %{\edef\m_syst_string_one{\csname\??variables\ifcsname\??variables#1:#2\endcsname#1:#2\else:\fi\endcsname}% {\edef\m_syst_string_one{\begincsname\??variables#1:#2\endcsname}% \ifx\m_syst_string_one\empty - \expandafter\firstoffourarguments + \expandafter\firstoftwoarguments \else \expandafter\secondoftwoarguments \fi} Wolfgang

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tabl-xtb.lua xtables and samepage option
by Wolfgang Schuster 16 Nov '18

16 Nov '18

Hi, the samepage option for xtables doesn’t work because of bugs in the Lua code. 1. On line 895 the value has to be taken from the rp-variable itself. 2. On line 905 the second index to get the value for the samepage option is missing. function xtables.construct() ... result[nofr] = { hbox, size, i < nofrange and rowdistance > 0 and rowdistance or false, -- might move false, - rp and rp.samepage or false, + rp or false, } end end if nofr > 0 then -- the [5] slot gets the after break result[1] [5] = false result[nofr][5] = false for i=2,nofr-1 do - local r = result[i] + local r = result[i][5] if r == v_both or r == v_before then result[i-1][5] = true elseif r == v_after then result[i][5] = true end end end return result end ... end Wolfgang

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x-setups-basics.mkiv
by Wolfgang Schuster 10 Nov '18

10 Nov '18

Hi Hans, can you add \setupxml[\c!entities=\v!yes] to the module because I need a few entities (&blank; and &percnt;) from the extended list. Wolfgang

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lxml-ini.mkiv
by Wolfgang Schuster 10 Nov '18

10 Nov '18

Hi, there is a \v!yes missing on line 408. \appendtoks - \doif{\directxmlparameter\c!entities}\clf_xmlloadentities + \doif{\directxmlparameter\c!entities}\v!yes\clf_xmlloadentities \to \everysetupxml Wolfgang

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ARMv7 hardfp or softfp detection
by Sebastian Miele 09 Nov '18

09 Nov '18

first-setup.sh from ConTeXt standalone contains the following lines: readelf -A /proc/self/exe | grep -q '^ \+Tag_ABI_VFP_args' if [ ! $? ]; then That probably does not work as intended, because [ ! $? ] is equivalent to [ ! -n $? ]. It does not return the negation of the return code of the previous command. [ ! 0 ] and [ ! 1 ] both have exit code 1, because the strings '0' and '1' are both non-null. Probably no-one actually uses ARMv7 with softfp, including me.

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Adding before and after keys to setupcaption
by Aditya Mahajan 01 Nov '18

01 Nov '18

Hi Hans, There have been a few questions on TeX.SX asking essentially for a frame around a float that covers both the caption and the content. 1. https://tex.stackexchange.com/questions/25180/adding-a-frame-and-background… 2. https://tex.stackexchange.com/questions/457412/context-place-rules-above-an… I have provided a hacky solutions to both questions (the internals changed quite a bit between the two questions), but as I was playing around with the code, I thought that the simplest solution will be to add a `before` and an `after` key to `\setupcaptions`: \def\strc_floats_build_box {\global\setbox\floatbox\vbox % pack ? probably not {\strc_floats_set_local_hsize \forgetall \ifconditional\c_floats_store_minimal_package \strc_floats_build_box_separate_make \else % \let\floatcaptionarrangement\s!default \let\floatcaptionarrangement\v!bottom % for Alan \processcommacommand[\floatcaptionparameter\c!location]\strc_floats_build_box_step \floatcaptionparameter\c!before %AM: Added \ifcsname\??floatbuilder\floatcaptionarrangement\endcsname \lastnamedcs \else \strc_floats_build_box_default \fi \floatcaptionparameter\c!after %AM: Added \fi}} A simple usage example is the following: \setupexternalfigures[location={local,global,default}] \setupcaption [ before={\startframedtext[widht=fit, background=color, backgroundcolor=gray, frame=off]}, after=\stopframedtext, ] \starttext \section{A figure with rules} \startplacefigure[location={left,high},title={A dutch cow}] \externalfigure[cow] \stopplacefigure \input knuth \startplacefigure[title={\input zapf \relax}] \externalfigure[cow] \stopplacefigure \dorecurse{4}{\input knuth \endgraf} \stoptext Does it make sense to add this or something similar? Thanks, Aditya

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