- ntg-context - Mailing Lists

Re: [NTG-context] new version luatex / mkiv
by Wolfgang Werners-Lucchini 13 Apr '08

13 Apr '08

On 12 Apr 2008 at 12:00, ntg-context-request(a)ntg.nl wrote: Hallo Taco, > Real API documentation will be provided once I am past the "alpha" > release stage. At the moment, I do not trust the API enough to > expose it to anything except controlled environments (lua mplib, > newmpost) > > >> Isn't mplib a dll under windows? > > It is possible to build the unix version as a .so because support > for that comes from autofoo automatically, but that is not yet > officially supported: debugging dynamic libraries is harder than > debugging static code. On the other side, it is very easy to replace a dll by a new version, if the interface stays stable. > MPlib could become a dll on windows eventually, but first someone > will have to explain to me how to create a windows dll (and I vastly > prefer a solution that does not involve me having to pay Microsoft any > money). You have not to pay anything, to build a Dll. And there is Msys for example, which works in a unix-environment under windows. Should be no problem. > I have exactly zero knowledge in that area and do not have a > Windows installation either: the one and only XP machine here is my > wife's gaming machine and that is strictly offlimits to me. :-) > Future versions of luatex and mpost itself (and potential other > texlive programs) will almost certainly remain statically linked > because that is much more convenient for us as maintainers. If there is more than one program, which is using mplib, you have to update all theses programs, if you make some mplib changes. But I think that a dll could very much boost the metapost usage. It would than be very easy to write third party software. Wolfgang

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Re: [NTG-context] new version luatex / mkiv
by Wolfgang Werners-Lucchini 13 Apr '08

13 Apr '08

Hallo, > > is there or will there be a documented interface description for > mplib. > > In the luatex reference manual (for now). > > http://foundry.supelec.fr/plugins/scmsvn/viewcvs.php/tags/beta-0.25. > 2/manual/?root=luatex This manual is not viewable without deleting a html-frame. Or what I am doing wrong? The manual describes a lua interface. Isn't mplib a dll under windows? If yes, where can I find a header-file of the export table. If no, how have you implemented the library? Wolfgang

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Re: [NTG-context] luatexing
by Wolfgang Werners-Lucchini 13 Apr '08

13 Apr '08

On 12 Apr 2008 at 9:39, ntg-context-request(a)ntg.nl wrote: > > I have a few silly questions about > > > > tex.print() > > > > To produce > > > > $\sqrt{2}=1.4142135623731$ > > > > it should be enough to write > > > > tex.print("$\\sqrt{2}=" .. math.sqrt(2) .. "$") > > this is because \\ can mean anything, for instance it may expand to > \par or \crlf or .. May be I do not understand this right, but I thought that '\' is luas escape character and tex.print() returns '\' not '\\'. So TeX sees no macro '\\' which could expand to whatever. > there is a \luaescapestring primitive which catches things like > quotes Can you make a little example of usage? > tex.print("\detokenize{$\sqrt{2}=}" .. math.sqrt(2) .. "$") Could not find the definition of \detokenize. Wolfgang

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mplib & undefined commands
by Mojca Miklavec 13 Apr '08

13 Apr '08

Hello Hans, I have modified the gnuplot module a bit, and stumbled upon: 1.) the need for \ifx\savebuffer\undefined \else \savebuffer[...]\fi which has been expected 2.) undefined command \forceMPTEXcheck{put_text} I have now used a wrapper to skip that line in LuaTeX (btw: what's the suggested \if clause or \beginNOLUATEX to check for luatex/mkiv?) Does it make sense to define \let\forceMPTEXcheck\empty in mkiv perhaps? 3.) undefined command \obeyMPlines. I actually forgot why I needed it, but according to the comment: \obeyMPlines % <- no longer a problem \def\obeyedline{}% <- thanks to this I simply commented out the first line and hoped for no problems in mkii 4.) It seems to work without problems now, except for one tiny detail that I get in the final PDF. [do we need TeXtexts in MkIV] What is that supposed to mean? I need to admit that I have the following piece of code in the module (in case that matters). Maybe I'm the only one who uses it, so if you have any idea how to modify the macros to make \sometxt[gp][iwona,14pt]{text} work in mkiv, I will happily drop the old code/replace it for mkiv. Thanks a lot, Mojca The relevant code from the module: %D Aditya, thanks a lot for requesting it! %D Hans, thanks a lot for implementing this! \definetextext[gp]{\strut} %D TODO (feature request): %D \starttyping %D \sometxt[gp][ss,20pt]{abc} %D \stoptyping %D should become equivalent to %D \starttyping %D \sometxt{\switchtobodyfont[ss,20pt]\strut abc} %D \stoptyping %D The following patch has been written by Aditya and seems to work OK, %D however it would be more clean to have this functionality in the core. %D Redefining low-level macros might be a bit dangerous, esp. since %D they tend to change over time. %D %D TODO: remind Hans to implement it in core ;) %D and remove this patch from the module \long\def\redofiltersometxt[#1]% {\doifnextcharelse[{\reredofiltersometxt[#1]}{\redodofiltersometxt[#1]}} \long\def\redodofiltersometxt[#1]#2% {\increment\txtcounter \TeXtext[#1]\txtcounter{#2}% \filtersometxt} \long\def\reredofiltersometxt[#1][#2]#3% {\increment\txtcounter \TeXtext[#1]\txtcounter{\switchtobodyfont[#2]\strut#3}% \filtersometxt}

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updating minimals
by Jean Magnan de Bornier 13 Apr '08

13 Apr '08

Hi all, Trying this morning to update my minimal context with the first-setup script, I get this error when running "texexec --make en --luatex" ................................... LuaTools | running command: luatex --ini --lua="cont-en.luc" "/win/context/tex/texmf-context/tex/context/base/cont-en.tex" \\dump (/win/context/tex/texmf-context/tex/context/base/cont-en.tex (/win/context/tex/texmf-context/tex/context/base/context.tex (/win/context/tex/texmf-context/tex/context/base/syst-pln.tex) (/win/context/tex/texmf-context/tex/context/base/syst-prm.tex) (/win/context/tex/texmf-context/tex/context/base/luat-env.tex) (/win/context/tex/texmf-context/tex/context/base/luat-lib.tex ! LuaTeX error ...context/tex/texmf-context/tex/context/base/l-aux.lua:55: attempt to call field 'Carg' (a nil value). \ctxluabytecode ...ode " .. "#1" .. str) end end } \registerctxluafile ...{\the \luabytecodecounter } \fi l.45 \registerctxluafile{l-aux} {1.001} ? ................................... I'm lost! -- Jean

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Re: [NTG-context] mplib
by Wolfgang Werners-Lucchini 13 Apr '08

13 Apr '08

On 12 Apr 2008 at 9:39, ntg-context-request(a)ntg.nl wrote: > > \startlua > > mp = mplib.new ( { > > hash_size = 100000, > > main_memory = 2000000, > > param_size = 100000, > > } ) > > > > if mp then > > res = mp:execute( > > "beginfig(1) draw (0,0) .. (1,1) .. (2,1); endfig; bye;" ) > > tex.print("[" .. tostring(res.status) .. "]") > > mp:finish() > > end > > \stoplua > > no format, so beginfig, draw etc are unknown I thought 'plain.mem' is the default. But I see, there exists only 'metafun.mem'. So I wrote: ------------------------------------------------------ mp = mplib.new ( { hash_size = 100000, main_memory = 2000000, param_size = 100000, mem_name = "metafun.mem" } ) ------------------------------------------------------ and it get the same result > metapost.process("metafun","some commands") > > may work better ------------------------------------------------------ \startlua mp = mplib.new ( { hash_size = 100000, main_memory = 2000000, param_size = 100000 } ) if mp then res = metapost.process("metafun","beginfig(1) draw (0,0) .. (1,1) .. (2,1); endfig; bye;") tex.print("[" .. tostring(res.status) .. "]") mp:finish() end \stoplua ------------------------------------------------------ results in : ------------------------------------------------------ mplib : loading format: metafun.mp, name: d:/context/tex/texmf-cache/luatex- cache/context/c80dc1fd5292ec817c6e82c295beaf1e/formats/cont-en- metafun.mem ! Emergency stop. \@@expanded ..... "]") -- mp:finish() -- end } l.54 \stoplua ! ==> Fatal error occurred, no output PDF file produced! ------------------------------------------------------ why does it load 'metafun.mp'? after that I tried ------------------------------------------------------ \startlua mp = mplib.new ( { hash_size = 100000, main_memory = 2000000, param_size = 100000, mem_name = "metafun.mem" } ) if mp then res = metapost.process(mp, "beginfig(1) draw (0,0) .. (1,1) .. (2,1); endfig; bye;") tex.print("[" .. tostring(res.status) .. "]") mp:finish() end \stoplua ------------------------------------------------------ which gives the following error: ------------------------------------------------------ report >> error: This is MetaPost, Version 1.003 (Cweb version 0.40) I can't find the PLAIN mem file! ------------------------------------------------------ What else should I check to find the error? Wolfgang

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two easy xml-questions
by Thomas A. Schmitz 13 Apr '08

13 Apr '08

Hi gang, speaking of xml... I have two easy questions, but can't find an answer. It's about tweaking the pdf-output I get: 1. How do you add an additional hyphenation to a word? How would I enter the equivalent of super\-duper in an xml-file? I tried super&addhyphen;duper with this definition: \defineXMLentity[addhyphen]{\-} in my environment, but this doesn't seem to work. 2. Similar question: how to prevent an unwanted ligature, esp. in German? In TeX, I write Kauf{}laden. What would be a good way to do this in xml? I was thinking of Kauf&nolig;laden and \defineXMLentity[nolig]{\kern0pt} Any thoughts? Thanks! Thomas

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hyphenating bug
by Yue Wang 13 Apr '08

13 Apr '08

Hi Taco and Hans I was typesetting the manual of a software developed by me using ConTeXt while the problem occurred. I try to minimized the problem and the result is attached. luatex.pdf --- pdf produced by luatex 0.25.2 It seems luatex forgets to hyphenating capital words. I am not sure whether it is a bug of LuaTeX or ConTeXt. the output of pdftex 1.40.3 seems fine using the same output file described below. --input file \starttext THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. \stoptext I hope my information helpful. Yue Wang

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t-bib: URL and '%'; spacing between number and text
by Tobias Burnus 12 Apr '08

12 Apr '08

Hi all, I have a .bib file which contains @article{foo, url = {http://..../a%bb%cc.html} i.e. an URL with % sign. I want to typeset it in the references using: \def\gotoURL#1{\useURL[foo][#1]\goto{\url[foo]}[url(foo)]} \unprotect \setuppublicationlayout[article]{% ... \insertbiburl{ }{.}{}% The problem is: If I do not escape the % signs, I get a TeX error. If I escape them with \%, both the link and the printed text show the backslash. What is the proper way of doing it? Another problem is that I have in the reference list, the space between "]" and the author name in [123]Author is too small (they overlap). Is there an easy possibility to make the spacing automatically right or does one need to tweek it manually? Tobias

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Footnotes set outside of columns when using columnsets
by Elliot Clifton 12 Apr '08

12 Apr '08

Hi, When using columnsets is it possible to have footnotes placed at the bottom of the page rather than in columns? I searched the documentation and haven't found a way to do this. Minimal examples. Using columnsets: \definecolumnset[twocolumn][n=2] \starttext \startcolumnset[twocolumn] \dorecurse{4}{\input knuth \footnote[footnote]{footnote}\par} \stopcolumnset \stoptext It produces footnotes in columns which isn't what I want. The behaviour I want is the that produced by this example using \startcolumns: \starttext \startcolumns \dorecurse{4}{\input knuth \footnote[footnote]{footnote}\par} \stopcolumns \stoptext I'd like to be able to take advantage of the addition feature offered by using columnsets but need the footnotes to be set at the bottomof the page outside of the columns. Advice on how to do this would be much appreciated. Thanks in advance, Elliot

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