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Re: help required w.r.t " vardef "
by vinuth madinur 15 Apr '04

15 Apr '04

Thanks Hans! That wolud help me a lot.Also thanks for the reference u mentioned.I'll try it. Now one last thing : Is there a way of having variable arrays whose contents can be used as "suffixes"? something like , a[0]:= "A" ; a[1]:= "B" ; a[2]:= "C" ; %a variable array "a[]" there are other three "pair" variables : T.A,T.B,T.C; so now I want to have , i := 0; T.a[i] = blahblah(); so here I want to use the contents of "a[]" as suffix of variable " T " . I don't know what kind of data type to use for "a[]". I tried a[] as string type and used it with forsuffixes $=a[0],a[1],a[2]: ..... endfor; but this does not work. So, can u please help me out here? thanx in advance. Vinuth. -- ______________________________________________ Check out the latest SMS services @ http://www.linuxmail.org This allows you to send and receive SMS through your mailbox. Powered by Outblaze

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Pragma-ade site down?
by John Culleton 14 Apr '04

14 Apr '04

I can no longer access the www.pragma-ade.nl site. What has happened? I recommended it to others and they were blocked also. -- John Culleton Able Typesetters and Indexers http://wexfordpress.com

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Moving chapternumber in the margin ...
by Willi Egger 13 Apr '04

13 Apr '04

Hi everybody, Studying the details manual I thought to have found a way to print the chapter number on the margin. Each increase of the chapternumber would move the figure a predefined distance downwards. Now when using a \def{\dimexpr(\realpageno\rightmarginwidth)} my chapternumber moves down. Replacing the \realpageno with \currentheadnumber the chapternumber is not moving or only after a couple of pages ... Is there someone who could hint me how to approach this? Please refer to the attached sample file "bleedingchapternumber.tex" Thanks and regards Willi % pagenumbers in the margin at half makeupheight % % Context file % filename: bleedingchapternumber.tex % W. Egger % 12.04.2004 \setupoutput[pdftex] \usetypescript[palatino][texnansi] \setupbodyfont[palatino,rm,12pt] \setuppapersize[A4][A3,portrait] \setuplayout[location=middle] \setupcolors[state=start] \def\shifted{% \dimexpr(\realpageno\rightmarginwidth)} % \def\shifted{% % \dimexpr(\currentheadnumber\rightmarginwidth)} \setuppagenumbering[state=start,location={footer,marginedge}] \startreusableMPgraphic{Pagenumberbackground} path p; p := fullcircle scaled 50pt ; fill p withcolor blue; p := unitsquare xyscaled 50pt shifted (0,-25pt); fill p withcolor blue; setbounds currentpicture to boundingbox currentpicture leftenlarged 50pt ; % draw bbox currentpicture withcolor red ; \stopreusableMPgraphic \defineoverlay[Pagenumberbackground] [\useMPgraphic{Pagenumberbackground}] \definelayer [Pagenumber] [width=\rightmarginwidth, height=\makeupheight] \startsetups Pagenumber \setups[Pagenumber:Number] \setups[Pagenumber:Finish] \stopsetups \startsetups Pagenumber:Number \setlayerframed [Pagenumber] [x=1mm, y=\shifted, location={right,top}] [width=\dimexpr(\cutspace-\rightmargindistance), height=\dimexpr(\cutspace-\rightmargindistance), foregroundcolor=yellow, background=Pagenumberbackground, frame=on, offset=none] {\framed[frame=on, width=.8\rightmarginwidth, align={left,lohi}, offset=8pt] {\placeheadnumber[chapter]}}% \stopsetups \startsetups Pagenumber:Finish \framed [width=\rightmarginwidth, height=\makeupheight, background=Pagenumber, frame=off] {} \stopsetups \setuptexttexts[margin] [] [\setups{Pagenumber}] \starttext \showframe \chapter{This is chapter no \headnumber[chapter]} \chapter{This is chapter no \headnumber[chapter]} \chapter{This is chapter no \headnumber[chapter]} \chapter{This is chapter no \headnumber[chapter]} \chapter{This is chapter no \headnumber[chapter]} \stoptext

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Two lines in header
by John Culleton 13 Apr '04

13 Apr '04

A current book has a title that is too long to fit in the textwidth when set with expanded spacing. I want to set up the even page header like this: 101 Home Based Businesses for Pet Lovers \break doesn't work. Two backslashes don't work. Suggestions? -- John Culleton Able Typesetters and Indexers http://wexfordpress.com

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syntax on bbl files
by a 13 Apr '04

13 Apr '04

Hello, new user ...having troubles with m-bib ... I did a test file worked fine the file was smiall... Is there a way besides the log to track down errors in your bbl file for bibtex ?? kv

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Re: help required w.r.t " vardef "
by vinuth madinur 13 Apr '04

13 Apr '04

Thankx Hans, But why does this work with "def" and not with "vardef" . "list" is just a macro name i've used. And "A,B,C,A" is just the replacement text I want when I call the macro "list". Is there any other way of doing this? Vinuth. -- ______________________________________________ Check out the latest SMS services @ http://www.linuxmail.org This allows you to send and receive SMS through your mailbox. Powered by Outblaze

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Page number in outer margin?
by John Culleton 12 Apr '04

12 Apr '04

I want to place the page number vertically centered in the outer margin, with some prettyprinting. Does one do this with the \setpagenumber command, the \inmargin command, or some combination thereof? I can figure out how to do it in plain TeX but I hate to revert to plain just for this feature. -- John Culleton Able Typesetters and Indexers http://wexfordpress.com

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Re: ntg-context digest, Vol 1 #715 - 2 msgs
by Jonathan Nicholl 09 Apr '04

09 Apr '04

On 7 Apr 2004, at 11:00, ntg-context-request(a)ntg.nl wrote: > In the following code : > > vardef list = > A , B , C , A > enddef; > > def triangle = > forsuffixes $=list: > pair T.$; > endfor; > enddef; > > beginfig(1) > triangle; > > path T; > > T.A = (2,3); > T.B = (3,5); > T.C = (2,6); > > T = T.A -- T.B -- T.C -- cycle; > draw T; > > endfig; > > end; > > > In macro "list" if i give just "def" instead of "vardef" the program > works fine. > But with "vardef" i'm getting many errors. > I'm not able to figure this out. > Please help; > > thanx in advance. > Vinuth. Vinuth, I've been trying to get clear about issues like this recently. Perhaps my answer will not be completely correct. But here goes. One difference between 'def' and 'vardef' is that 'def' makes the symbolic token which follows into a spark, whereas vardef leaves it as a tag. (This is the language that Knuth uses in his Metafont Book.) The difference between sparks and tags is the readiness with which Metafont interprets their meaning. So far as Metafont is concerned, your input consists of a stream of tokens, and at some point in its digestion of your input file it has to interpret each of these tokens. But the stage of digestion at which it interprets a symbolic token depends on whether it is a spark or a tag. It interprets sparks sooner than it interprets tags. Generally speaking - there are ways to prevent it - Metafont interprets sparks in its mouth, whereas the stage at which it interprets tags depends on the circumstances. This is why your program works if you define the symbolic token 'list' using 'def': 'list' becomes a spark whose meaning is 'A,B,C,A'. As soon as Metafont reads 'for suffixes $=list' it interprets 'list', replacing it with 'A,B,C,A'. So writing 'forsuffixes $=list' is equivalent to writing 'forsuffixes $=A,B,C,A'. Perhaps you have guessed now why your program does not work if you define 'list' using 'vardef': 'list' remains a tag and so when Metafont reads 'forsuffixes $=list' it does not interpret it at once. In fact, it never interprets it. For the tags in the suffixes of variable names are never interpreted, and 'forsuffixes' causes 'list' to be treated as the suffix of a variable name. The tags in the suffixes of variable names just form part of the name. Only the subscripts in the suffixes of variable names are interpreted. 'forsuffixes $=list: pair T.$[]; endfor;' is equivalent to 'pair T.list;' Look at the following program: 1 vardef list = 2 1 3 enddef; 4 5 forsuffixes $=list: 6 T $ = 2; 7 endfor; 8 9 show(T list); 10 show(T 1); 11 show(T [list]); 12 13 end; Lines 1-3 assign the meaning the number 1 to the variable name 'list'; they are equivalent to 'list := 1;'. Lines 5-7 make the number 2 the meaning of the variable name 'T list'; they are equivalent to 'T list = 2;'. Line 9 produces the output '>>2', because 2 is the value of 'T list'. Line 10 produces the output '>>T1' because the variable has no value; 'T1' is undefined. Line 11 is interesting. The square brackets around 'list' force evaluation of the variable 'list', so 'show(T [list]);' is equivalent to 'show(T 1);'. The output is '>>T1' again. What do you think that the output of the following program will be? def list = 1 enddef; forsuffixes $=list: T $ = 2; endfor; show(T list); show(T 1); show(T [list]); end; In summary, vardef is intended for giving meanings to variable names. You should be suspicious of 'vardef list = A,B,C,A; enddef;' because A,B,C,A cannot be the value of a variable name. (I assume that this was Hans's point, when he said that Metapost lacks the concept of a list.) If you want to understand things like this, I strongly recommend that you read Knuth's Metafont Book. It makes everything very clear, and nowhere else is the detail explained. The most relevant chapters are the ones on variables, macros, and loops. Best wishes, Jonathan Afterthought: to grasp the difference between a name and the meaning of the name compare '"Vinuth" contains six letters' with 'Vinuth contains six letters.'

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help required w.r.t " vardef " in mpost.
by vinuth madinur 07 Apr '04

07 Apr '04

In the following code : vardef list = A , B , C , A enddef; def triangle = forsuffixes $=list: pair T.$; endfor; enddef; beginfig(1) triangle; T.A = (2,3); T.B = (3,5); T.C = (2,6); T = T.A -- T.B -- T.C -- cycle; draw T; endfig; end; In macro "list" if i give just "def" instead of "vardef" the program works fine. But with "vardef" i'm getting many errors. I'm not able to figure this out. Please help; thanx in advance. Vinuth. -- ______________________________________________ Check out the latest SMS services @ http://www.linuxmail.org This allows you to send and receive SMS through your mailbox. Powered by Outblaze

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[Thanks !] mpost called from context
by Laurent Chéno 07 Apr '04

07 Apr '04

( please excuse my poor english ) Thank you very much : this works now very well. Best regards, Laurent For others beginners under MacOS X, there is the right way I used : 0. intall the Gerben Wierda's distribution of teTeX : see http://www.rna.nl/tex.html 1. modify line 50 of /usr/local/teTeX/texmf.cnf so it is : shell_escape = t 2. copy /usr/local/teTeX/share/texmf.tetex/tex/context/user/cont-sys.rme into ~/Library/texmf/tex/context/cont-sys.tex and delete the %-comment in front of lines 87--88 : \runMPgraphicstrue \runMPTEXgraphicstrue

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