- ntg-context - NTG Mailing Lists

Using lmtx and new metafun
by Otared Kavian 12 Dec '19

12 Dec '19

Hi Aditya, Following your explanations in https://adityam.github.io/context-blog/post/new-metafun-interface/ I wrote an environment in order to display the graph of a function on a grid which can be adapted to each case. Assuming that I have an MPinstance named GridAxis (for example) which can dispaly a grid and axes, how can I call it and write a line such as draw function (1,"x","x*x/4 - 2.5",xmin,xmax,.001) scaled sx ; without changing the part whichh is included in \startMPdefinitions, in oder to draw the above function on that grid ? Thanks for your help: Otared PS: Here is my definition of GridAxis (I guess many parts of it could be better written…) \defineMPinstance[GridAxis] [ format=metafun, extensions=yes, initializations=yes, method=double, ] \startMPdefinitions{GridAxis} def GridAxisPlot = applyparameters "GridAxisPlot" "do_GridAxisPlot" enddef ; presetparameters "GridAxisPlot" [ xmin = -2.5, xmax = 2.5, ymin = -2.5, ymax = 2.5, dx = 1, dy = 1, sx = 5mm, sy = 5mm, scale = 0.5, grid = true, xaxisnumbers = true, yaxisnumbers = true, showmyorigin = true, style = "\switchtobodyfont[8pt]", ]; vardef do_GridAxisPlot = image ( pushparameters "GridAxisPlot"; newnumeric xmin, xmax, ymin, ymax; xmin := getparameter "xmin"; xmax := getparameter "xmax"; ymin := getparameter "ymin"; ymax := getparameter "ymax"; newnumeric sx, sy; sx := getparameter "sx"; sy := getparameter "sy"; newnumeric dx, dy; dx := getparameter "dx"; dy := getparameter "dy"; newpath xaxis, yaxis; xaxis := (xmin*sx, 0) -- (xmax*sx, 0) ; yaxis := (0, ymin*sy) -- (0, ymax*sy) ; newpath xtick, ytick; xtick := (-0.1sx, 0) -- (0.1sx, 0); ytick := (0, -0.1sy) -- (0, 0.1sy); newstring style; style := getparameter "style"; pickup pencircle scaled .1mm ; newboolean grid; grid := getparameter "grid"; newboolean xaxisnumbers ; xaxisnumbers := getparameter "xaxisnumbers" ; newboolean yaxisnumbers ; yaxisnumbers := getparameter "yaxisnumbers" ; for x = dx step dx until xmax : if grid : draw yaxis shifted (x*sx, 0) withcolor 0.75white ; fi draw ytick shifted (x*sx, 0); if xaxisnumbers : label.bot(style & decimal x, (x*sx, 0)); fi endfor newboolean showmyorigin ; showmyorigin := getparameter "showmyorigin" ; if showmyorigin : label.lrt(style & "0", origin) ; fi for x = -dx step -dx until xmin : if grid : draw yaxis shifted (x*sx, 0) withcolor 0.75white; fi draw ytick shifted (x*sx, 0); if xaxisnumbers : label.bot(style & decimal x, (x*sx, 0)); fi endfor for y = dy step dy until ymax : if grid : draw xaxis shifted (0, y*sy) withcolor 0.75white; fi draw xtick shifted (0, y*sy); if yaxisnumbers : label.lft(style & decimal y, (0, y*sy)); fi endfor for y = -dy step -dy until ymin : if grid : draw xaxis shifted (0, y*sy) withcolor 0.75white; fi draw xtick shifted (0, y*sy); if yaxisnumbers : label.lft(style & decimal y, (0, y*sy)); fi endfor drawarrow xaxis; drawarrow yaxis; label.rt( style & "$x$", (xmax*sx, 0)); label.top(style & "$y$", (0, ymax*sy)); newpair p ; newnumeric scale; scale := getparameter "scale" ; popparameters; ) enddef; \stopMPdefinitions

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Re: [NTG-context] Problems with new beta
by Ursula Hermann 12 Dec '19

12 Dec '19

After new beta today Hans, it works fine. Uschi Von: Ursula Hermann Gesendet: Montag, 09. Dezember 2019 15:34 An: 'mailing list for ConTeXt users' <ntg-context(a)ntg.nl> Betreff: Problems with new beta Dear List! If I want to do the test from the new beta on WinEdt (I have Windows 10) , normaly the test works fine. But today as I wanted to make the test, it did not work. \starttext \startmode[mkiv] \startluacode tex.sprint("hello") \stopluacode \startMPcode draw textext("hello") rotated 45 ; \stopMPcode \framed{hello} \stopmode \startnotmode[mkiv] \startMPcode draw textext("hello") rotated -45 ; \stopMPcode \framed{hello} \stopnotmode \stoptext After Compiling with ConTeXt it does not work. I have the following mistake? Command Line: context.exe --synctex=-1 "context-test.tex" Startup Folder: C:\Users\Hermann\AppData\Local\Temp\Temp1_cont-tmf.zip\tex\context\test\mkiv mtxrun | forcing cache reload resolvers | resolving | configuration files already identified resolvers | resolving | skipping configuration file 'selfautoparent:/texmf/web2c/texmfcnf.lua' (no valid format) resolvers | resolving | no texmf paths are defined (using TEXMF) resolvers | resolving | mtxrun | the resolver databases are not present or outdated resolvers | resolving | using suffix based filetype 'lua' resolvers | resolving | remembering file 'mtx-context.lua' using hash 'lua::mtx-context.lua' resolvers | resolving | using suffix based filetype 'lua' resolvers | resolving | remembering file 'mtx-contexts.lua' using hash 'lua::mtx-contexts.lua' resolvers | resolving | remembered file 'mtx-context.lua' resolvers | resolving | using suffix based filetype 'lua' resolvers | resolving | remembering file 'mtx-t-mtx-context.lua' using hash 'lua::mtx-t-mtx-context.lua' resolvers | resolving | using suffix based filetype 'lua' resolvers | resolving | remembering file 'mtx-t-mtx-contexts.lua' using hash 'lua::mtx-t-mtx-contexts.lua' resolvers | resolving | remembered file 'mtx-t-mtx-context.lua' resolvers | resolving | remembered file 'mtx-context.lua' mtxrun | unknown script 'mtx-context.lua' or 'mtx-mtx-context.lua' There are no warnings, no errors, but it does not work. Why? _____________________________________________________________________ ConTeXt Compilation Report (Pages: 0) Errors: 0 Warnings: 0 Bad Boxes: 0 Many thanks Uschi

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Ebooks with ConTeXt?
by Nicola 11 Dec '19

11 Dec '19

What is the current status of epub support in ConTeXt? I have never followed ConTeXt's development on the XML front too closely, but recently I have been asked to help format a text-only manuscript for publishing on platforms such as Kindle or Apple Books Store. Can ConTeXt be used (or perhaps even recommended) for that? Or would I have better luck with the proprietary tools (Kindle Create, iBooks Author)? Nicola

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Bug: Segmentation fault
by Henri Menke 11 Dec '19

11 Dec '19

Dear devs, The example below crashes LuaTeX with a segmentation fault. It is reproducible with LuaTeX 1.10.1 7143 and LuaTeX 1.11.2 7226. To this end I built 7226 from source with --debugopt to get a backtrace, which can be found below as well. Cheers, Henri --- \directlua{token.set_macro(-1, "foo","\string\\,")} \show\foo \foo \bye --- (gdb) run Starting program: /usr/local/bin/luatex test.tex This is LuaTeX, Version 1.11.2 (TeX Live 2020/dev) restricted system commands enabled. (./test.tex Program received signal SIGSEGV, Segmentation fault. get_sa_item (head=0x41002, n=n@entry=92) at ../../../source/texk/web2c/luatexdir/utils/managed-sa.c:65 65 if (head->tree != NULL) { (gdb) bt full #0 get_sa_item (head=0x41002, n=n@entry=92) at ../../../source/texk/web2c/luatexdir/utils/managed-sa.c:65 No locals. #1 0x00000000005607d0 in get_cat_code (h=h@entry=-1, n=n@entry=92) at ../../../source/texk/web2c/luatexdir/tex/textcodes.c:68 sa_value = <optimized out> s = <optimized out> #2 0x00000000004d8a8c in set_macro (L=<optimized out>) at ../../../source/texk/web2c/luatexdir/lua/lnewtokenlib.c:1204 p = <optimized out> q = <optimized out> t = <optimized out> se = 0x295bf9a "" name = <optimized out> str = <optimized out> s = <optimized out> lname = 3 lstr = 2 cs = 743 cc = <optimized out> ct = -1 n = <optimized out> a = 0 nncs = <optimized out> #3 0x00000000006dc924 in luaD_precall (L=L@entry=0x1202678, func=func@entry=0x2214490, nresults=nresults@entry=0) at ../../../source/libs/lua53/lua53-src/src/ldo.c:434 n = <optimized out> f = 0x4d8890 <set_macro> ci = 0x123c830 #4 0x00000000006f62c2 in luaV_execute (L=L@entry=0x1202678) at ../../../source/libs/lua53/lua53-src/src/lvm.c:1134 b = <optimized out> nresults = 0 i = <optimized out> ra = 0x2214490 ci = 0x12221c0 cl = 0x2952f00 k = 0x294ea40 base = <optimized out> #5 0x00000000006dcef7 in luaD_call (nResults=<optimized out>, func=<optimized out>, L=0x1202678) at ../../../source/libs/lua53/lua53-src/src/ldo.c:499 No locals. #6 luaD_callnoyield (L=0x1202678, func=<optimized out>, nResults=<optimized out>) at ../../../source/libs/lua53/lua53-src/src/ldo.c:509 No locals. #7 0x00000000006db78c in luaD_rawrunprotected (L=0x1202678, f=0x6d0800 <f_call>, ud=0x7fffffffdf80) at ../../../source/libs/lua53/lua53-src/src/ldo.c:142 oldnCcalls = 0 lj = {previous = 0x0, b = {{__jmpbuf = {832, -3576387603206626035, 18884312, 1, 18884216, 0, 3576387604335174925, -3576387282536356595}, __mask_was_saved = 0, __saved_mask = {__val = {0, 18884312, 18884216, 7198250, 35733824, 72057594037927937, 140737488346976, 0, 0, 0, 0, 0, 0, 0, 0, 0}}}}, status = 0} #8 0x00000000006dd3af in luaD_pcall (L=L@entry=0x1202678, func=func@entry=0x6d0800 <f_call>, u=u@entry=0x7fffffffdf80, old_top=832, ef=<optimized out>) at ../../../source/libs/lua53/lua53-src/src/ldo.c:729 status = <optimized out> old_ci = 0x12026d8 old_allowhooks = 1 '\001' old_nny = 1 old_errfunc = 0 oldtop = <optimized out> #9 0x00000000006d3907 in lua_pcallk (L=0x1202678, nargs=nargs@entry=0, nresults=nresults@entry=0, errfunc=errfunc@entry=51, ctx=ctx@entry=0, k=k@entry=0x0) at ../../../source/libs/lua53/lua53-src/src/lapi.c:969 c = {func = 0x2214480, nresults = 0} status = <optimized out> func = <optimized out> #10 0x0000000000463b5f in luatokencall (p=p@entry=9030, nameptr=nameptr@entry=0) at ../../../source/texk/web2c/luatexdir/lua/luastuff.c:653 base = 51 ls = {s = 0x295e890 "\240܂\367\377\177", size = 0} i = 0 l = 32 s = 0x0 lua_id = <optimized out> stacktop = 50 #11 0x0000000000567a83 in conv_toks () at ../../../source/texk/web2c/luatexdir/tex/textoken.c:2859 old_setting = <optimized out> p = <optimized out> q = <optimized out> save_scanner_status = 0 save_def_ref = 0 save_warning_index = 0 bool = <optimized out> s = 9030 sn = 0 u = 0 c = <optimized out> str = <optimized out> i = 0 #12 0x0000000000503a25 in expand () at ../../../source/texk/web2c/luatexdir/tex/expand.c:259 t = <optimized out> p = <optimized out> ---Type <return> to continue, or q <return> to quit--- cur_ptr = <optimized out> cv_backup = 0 cvl_backup = 0 radix_backup = 0 co_backup = 0 backup_backup = 7961 save_scanner_status = <optimized out> #13 0x0000000000503f85 in get_x_token () at ../../../source/texk/web2c/luatexdir/tex/expand.c:501 No locals. #14 0x0000000000513ae5 in main_control () at ../../../source/texk/web2c/luatexdir/tex/maincontrol.c:1014 No locals. #15 0x000000000050f4ac in main_body () at ../../../source/texk/web2c/luatexdir/tex/mainbody.c:567 pdftex_map = "pdftex.map" bad = <optimized out> #16 0x0000000000446d2e in main (ac=<optimized out>, av=<optimized out>) at ../../../source/texk/web2c/luatexdir/luatex.c:609 No locals.

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Blank page inserted when text reaches column's end
by Thangalin 10 Dec '19

10 Dec '19

When text reaches the end of a column, it appears to trigger inserting a blank page. In the following code, \dorecurse{3} causes a blank page to appear but \dorecurse{2} does not. The only difference is that when set to 3, the additional text is written on the last line of the last column. This scenario results in a blank page. Any ideas how the blank page can be suppressed? \showgrid \setuplayout[grid=yes] \starttext \startcolumnset[n=2] \input knuth \input lorem \input lorem \input knuth \dorecurse{3}{No TV and no beer make Homer something something.} \stopcolumnset \stoptext Version: $ context --version mtx-context | ConTeXt Process Management 1.03 mtx-context | mtx-context | main context file: /opt/context/tex/texmf-context/tex/context/base/mkiv/context.mkiv mtx-context | current version: 2019.06.11 19:20 Thank you!

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overbar in math mode is asymmetric over "F"
by Bernd Donner 10 Dec '19

10 Dec '19

Hello, the following small sample illustrates the problem: \starttext \enabletrackers[math.stackers.texts] \math{\overbar {ABC}} %<-- somewhat okay \math{\overbar {F}} %<-- too short on the right side %manual fixing \math{\overbar {ABC\mkern\onemuskip}} \math{\overbar {F\mkern3\onemuskip}} \stoptext I wish to have an overbar that extends over the exact boundingbox of the letter or sequence of letters. How can this be done in context without manual fixing? Thnk you, Bernd Donner

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Problems with new beta
by Ursula Hermann 10 Dec '19

10 Dec '19

Dear List! If I want to do the test from the new beta on WinEdt (I have Windows 10) , normaly the test works fine. But today as I wanted to make the test, it did not work. \starttext \startmode[mkiv] \startluacode tex.sprint("hello") \stopluacode \startMPcode draw textext("hello") rotated 45 ; \stopMPcode \framed{hello} \stopmode \startnotmode[mkiv] \startMPcode draw textext("hello") rotated -45 ; \stopMPcode \framed{hello} \stopnotmode \stoptext After Compiling with ConTeXt it does not work. I have the following mistake? Command Line: context.exe --synctex=-1 "context-test.tex" Startup Folder: C:\Users\Hermann\AppData\Local\Temp\Temp1_cont-tmf.zip\tex\context\test\mkiv mtxrun | forcing cache reload resolvers | resolving | configuration files already identified resolvers | resolving | skipping configuration file 'selfautoparent:/texmf/web2c/texmfcnf.lua' (no valid format) resolvers | resolving | no texmf paths are defined (using TEXMF) resolvers | resolving | mtxrun | the resolver databases are not present or outdated resolvers | resolving | using suffix based filetype 'lua' resolvers | resolving | remembering file 'mtx-context.lua' using hash 'lua::mtx-context.lua' resolvers | resolving | using suffix based filetype 'lua' resolvers | resolving | remembering file 'mtx-contexts.lua' using hash 'lua::mtx-contexts.lua' resolvers | resolving | remembered file 'mtx-context.lua' resolvers | resolving | using suffix based filetype 'lua' resolvers | resolving | remembering file 'mtx-t-mtx-context.lua' using hash 'lua::mtx-t-mtx-context.lua' resolvers | resolving | using suffix based filetype 'lua' resolvers | resolving | remembering file 'mtx-t-mtx-contexts.lua' using hash 'lua::mtx-t-mtx-contexts.lua' resolvers | resolving | remembered file 'mtx-t-mtx-context.lua' resolvers | resolving | remembered file 'mtx-context.lua' mtxrun | unknown script 'mtx-context.lua' or 'mtx-mtx-context.lua' There are no warnings, no errors, but it does not work. Why? _____________________________________________________________________ ConTeXt Compilation Report (Pages: 0) Errors: 0 Warnings: 0 Bad Boxes: 0 Many thanks Uschi

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Textbackground inside Layer?
by Jon Wong 09 Dec '19

09 Dec '19

\setupwhitespace[line] % A line's spacing between paragraphs. \starttext \definetextbackground[InfoText][ location=paragraph, frame=on] \definelayer[testlayer] \setlayer[testlayer][x=1cm,y=3cm]{% \startInfoText \stopInfoText } \flushlayer[testlayer] \stoptext Doesn’t work. Only works if I put text inside the layer.

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Re: [NTG-context] problem with a new installation of LMTX: Solved!
by Otared Kavian 09 Dec '19

09 Dec '19

Dear Dalyoung, Thank you for the good news! Now I will add to the wiki the procedure I described, which you followed, but we have to find a way for people to get a zip file containing a complete tree of LuaMetaTeX which can be installed « by hand » under MacOS 10.15 Catalina. Maybe Hans or Mojca have a suggestion in this regard. Best regards: OK > On 9 Dec 2019, at 15:21, Jeong Dal <haksan(a)me.com> wrote: > > Dear Otared, > > I followed your instruction. During the process, “mtxrun —generate” and “context —make —all” work well. > > After rebooting the system, “context test.tex” produces a pdf output finally. Wow! > It is a long way around, but I learned many things. > > Thank you for your help. > > Best regards, > > Dalyoung

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Eofill extension (Metafun)
by Fabrice Couvreur 09 Dec '19

09 Dec '19

Hello, Is it possible to use the eofill extension in this code ? I tried without success. Thank you. Fabrice \starttext \startMPcode path carre, disque; carre = fullsquare scaled 200; disque = fullcircle scaled 200; draw carre numberstriped (.25,15,5) withcolor \MPcolor{magenta}; fill disque withcolor white; draw carre withcolor \MPcolor{orange}; draw disque withcolor \MPcolor{orange}; path a[]; a1 = origin -- point 3.5 of carre; interim ahangle := 30; drawdblarrow a1 withpen pencircle scaled 1.5pt withcolor darkred; label.top("$R$", point 1/2 of a1); \stopMPcode \stoptext

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