- ntg-context - Mailing Lists

byte order marks in utf-8 (old)
by Taco Hoekwater 28 Dec '05

28 Dec '05

Hi, A long time ago, Hans wrote: > Patrick Gundlach wrote: > >> are you sure that your scite does not use utf-16 and puts the BOM (byte >> order mark) there? > > scite indeed does this (kind of annoying) It is the BOM, in utf-8 file encoding. A bit pointless (utf-8 is based on opcodes instead of byte ordering), but is allowed by the unicode specification. > context can handle that for xml files > > i can consider handling it automatically (i.e. when BOM before first start-stop, > then assume utf-8) It is a safe bet that any document that starts with the three bytes 0xEF 0xBB 0xBF is encoded as UTF-8, esp. if it is supposed to be text input. Cheers, Taco

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expert font access
by Henning Hraban Ramm 28 Dec '05

28 Dec '05

Ahoi! One decorative font that I use contains some additional (swashed etc.) characters. At the moment I access them like this: \def\DelitschC#1{\getglyph{\defaultencoding-raw-delitschantiqua} {\char#1}} \definetextmodediscretionary A {\DelitschC{197}} So I get the alternative A as |A|, and that's enough for me. But in this way |A| always takes this character from the same font. How could I solve this more generally, two cases: 1. if several fonts use the same "expert" encoding 2. if I change the font, I'd like to get a simple A instead of |A| At the moment I need (2.), because I'd like to use something like \chapter{|A|nfang}; that's ok with my definition of chapter style=\hw (Delitsch font being defined as handwriting), but not in the ToC (rm font). Further (don't know how different), how could I define "take this special character always at the end/beginning of a word" or the like, e.g. how could I enable the different 's' of gothic fonts? Another one: How can I define additional ligatures, e.g. if my font provides a "Qu" or some other unusual ligature? Grüßlis vom Hraban! --- http://www.fiee.net/texnique/ http://contextgarden.net http://www.cacert.org (I'm an assurer)

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description question (bis)
by VnPenguin 27 Dec '05

27 Dec '05

Hi, I have another question about description list : How to make description list with idented text, not header ? Example: This is header This is the text of description. This is the text of description. This is the text of description. This is the text of description. This is the text of description. This is the text of description. Thank you in advance, Cheers, -- http://vnoss.org Vietnamese Open Source Software Community

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more font packages
by Henning Hraban Ramm 27 Dec '05

27 Dec '05

Here's a present for you: http://www.fiee.net/texnique/?menu=0-1-4 I made some more font packages and also published some symbol packages (Apostrophe HardTalk, FontShop FFDingbests, Klein RudolfsBats and my own Unitas2). The additional files of the newer packages are finally in the right places (docs/fonts/... and tex/context/third) I'll think about a better structure of the page including preview pictures... Merry Christmas (or whatever)! Grüßlis vom Hraban! --- http://www.fiee.net/texnique/ http://contextgarden.net http://www.cacert.org (I'm an assurer)

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hlingrid text t parameter?
by David Arnold 27 Dec '05

27 Dec '05

All, In mp-grid.mp, I find this definition: def hlingrid (expr Min, Max, Step, Length, Width) text t = image ( for i=Min step Step until Max+grid_eps : draw (origin--(Width,0)) shifted (0,i*(Length/Max)) t ; endfor ; ) ; enddef ; See the text t at the end of the first line? Can someone tell me what that does and can I have a small example of its use? Thanks.

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\startMPpage ... \stopMPpage
by David Arnold 27 Dec '05

27 Dec '05

Hans, Taco, et al, There's a quote in metafun-s.pdf (page 539) that says "You can embed the graphic in a \startMPpage construct and process it with TEXEXEC. In that case you have the full MetaFun functionality available. Before processing the file, TEXEXEC will do a couple of checks on the file. It will also make sure that the auxiliary files (mpt for textext’s and mpo for outline fonts) are taken care of too." I am really unsure of what this means as the code below will attest. Simply uncomment % \startMPpage % \includeMPgraphic{EnglishRule} % \stopMPpage at the end and the file will not compile. Just what can and cannot be used between a \startMPpage ... \stopMPpage pair? This is first introduced in metafun-s.pdf on page 214 and wish there were more said there. %output=pdf \setupcolors[state=start] \definecolor[gridlines][s=0.7] \startMPinclusions color gridlines; gridlines:=\MPcolor{gridlines}; \stopMPinclusions \starttext \setupMPvariables [EnglishRule] [height=1ex, width=\localhsize, color=darkred] \startuniqueMPgraphic{EnglishRule}{height,width,color} numeric height; height=\MPvar{height}; x1=0; x3=\MPvar{width}; x2=x4=.5x3; y1=y3=0; y2:=-y4=height/2; fill z1..z2..z3 & z3..z4..z1 & cycle withcolor \MPvar{color}; \stopuniqueMPgraphic \defineblank [EnglishRule] [medium] \def\EnglishRule% {\startlinecorrection[EnglishRule] \setlocalhsize \noindent \reuseMPgraphic{EnglishRule} \stoplinecorrection} Why is this called an English line? \startnarrower \EnglishRule Is it because they cannot draw a straight one? This could be ture after a few strong beers, but then, ow do Germans draw a line? \EnglishRule \stopnarrower \defineblank [EnglishRule] [big] Why is this called an English line? \startnarrower \EnglishRule Is it because they cannot draw a straight one? This could be ture after a few strong beers, but then, ow do Germans draw a line? \EnglishRule \stopnarrower % \startMPpage % \includeMPgraphic{EnglishRule} % \stopMPpage \stoptext %%% Local Variables: %%% mode: conTeXt-en %%% End:

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\setupMPvariables in \startMPpage
by David Arnold 27 Dec '05

27 Dec '05

All, Why doesn't this work? %output=pdf \startuseMPgraphic{usquare} draw unitsquare scaled 4cm; \stopuseMPgraphic \starttext \startMPpage \useMPgraphic{square} \stopMPpage \stoptext Why doesn't this work? %output=pdf \startuseMPgraphic{usquare} draw unitsquare scaled \MPvar{u}; \stopuseMPgraphic \starttext \startMPpage \setupMPvariables[usquare][u=4cm] \includeMPgraphic{usquare} \stopMPpage \stoptext

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\definedescription question
by VnPenguin 27 Dec '05

27 Dec '05

Hi all, I'm trying to define a description: \definedescription [Desc] [location=top,hang=3,headcolor=red] But my PDF has not color for description header (I have already \setupcolors[state=start]). Another test: \definedescription [Desc] [location=top,hang=3,headstyle={\switchtobodyfont[16pt]\red\bf}] Does not work :( Question: How to define color & font size for description header ? The document of description is not complet. Search on Wiki & Mailing list can not help me. Thank you in advance, -- http://vnoss.org Vietnamese Open Source Software Community

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It works, passing text
by David Arnold 27 Dec '05

27 Dec '05

Taco, I have something that works. Thanks for hanging in there with me. %output=pdf \setupcolors[state=start] \definecolor[gridlines][s=0.7] \startMPinclusions color gridlines; gridlines:=\MPcolor{gridlines}; vardef create_grid(expr xxmin,xxmax,xxscl,yymin,yymax,yyscl,uux,uuy)= for k=xxmin step xxscl until xxmax: draw (xmin*uux,k*uuy)--(xmax*uux,k*uuy) withcolor \MPcolor {gridlines}; draw (k*uux,ymin*uuy)--(k*uux,ymax*uuy) withcolor \MPcolor {gridlines}; endfor; enddef; vardef create_axes (expr xxmin,xxmax,yymin,yymax,uux,uuy) (text xlbl,ylbl) = textextoffset:=3pt; picture p; p:=textext.rt(xlbl); p:=p shifted (1.05*xxmax*ux,0); picture q; q:=textext.top(ylbl); q:=q shifted (0,1.05*yymax*uy); drawdblarrow (1.05*xxmin*uux,0)--(1.05*xxmax*uux,0); draw p; drawdblarrow (0,1.05*yymin*uuy)--(0,1.05*yymax*uuy); draw q; enddef; vardef drawf(expr xxmin,xxmax,yymin,yymax,uux,uuy,n)= path p; p:=(xxmin,f(xxmin)); numeric dx; dx=(xxmax-xxmin)/n; for x=xmin step dx until xxmax: p:=p--(x,f(x)); endfor; p:=p--(xxmax,f(xxmax)); path cpath; cpath:=(xxmin,yymin)--(xxmax,yymin)--(xxmax,yymax)--(xxmin,yymax)-- cycle; p:=p cutbefore cpath; p:=reverse p; p:=p cutbefore cpath; p:=p xyscaled (uux,uuy); drawdblarrow p withcolor blue; enddef; \stopMPinclusions \starttext \startMPpage %initialize function vardef f(expr x)= x*x enddef; %initialize window parameters numeric xmin, xmax, xscl, ymin, ymax, yscl; xmin:=-5; xmax:=5; xscl:=1; ymin:=-5; ymax:=5; yscl:=1; %initialize number of points numeric num_points; num_points:=100; %initialize dimensions of image numeric width, height; width=3in; height=3in; %initialize scale numeric ux, uy; (xmax-xmin)*ux=width; (ymax-ymin)*uy=height; %create the grid create_grid(xmin,xmax,xscl,ymin,ymax,yscl,ux,uy); %create the axes create_axes(xmin,xmax,ymin,ymax,ux,uy)("$x$")("$y$"); %draw the function drawf(xmin,xmax,ymin,ymax,ux,uy,num_points); \stopMPpage \stoptext %%% Local Variables: %%% mode: conTeXt-en %%% End:

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no 'D' in math-eul.tex
by Johan Sandblom 27 Dec '05

27 Dec '05

In May I discovered that there was a typo in math-eul.tex rendering the lower-case 'd' an 'e'. Amazingly, the same problem occurs also for the upper-case 'D', and requires changing the line \definemathcharacter [D] [nothing] [mr] ["45] into \definemathcharacter [D] [nothing] [mr] ["44] Apparently this beautiful font is severely underused to allow this typo to survive! Regards, Johan -- Johan Sandblom N8, MRC, Karolinska sjh t +46851776108 17176 Stockholm m +46735521477 Sweden "What is wanted is not the will to believe, but the will to find out, which is the exact opposite" - Bertrand Russell

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