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IDProjectCategoryView StatusDate SubmittedLast Update
0000993MetaPostbugpublic2016-10-31 10:152016-11-25 11:42
Reportertoby Assigned Toluigi scarso  
PrioritynormalSeverityminorReproducibilityhave not tried
Status closedResolutionfixed 
Platformtexlive 2016OSmacosOS Version10.12.1
Product Version1.890 
Summary0000993: Cannot assign to transform variable
DescriptionCannot assign directly to transform variables.

This appears to be some form of parsing error.
Steps To ReproduceThis program:

show mpversion;
pair P; P = (a,b); show P;
color R; R = (d,e,f); show R;
cmykcolor C; C = (g,h,i,j); show C;
transform T; T = (k,l,m,n,o,p); show T;
end

gives

This is MetaPost, version 1.9991 (TeX Live 2016) (kpathsea version 6.2.2)
(/usr/local/texlive/2016/texmf-dist/metapost/base/mpost.mp
(/usr/local/texlive/2016/texmf-dist/metapost/base/plain.mp
Preloading the plain mem file, version 1.005) ) (./t.mp
>> "1.9991"
>> (xpart P,ypart P)
>> (redpart R,greenpart R,bluepart R)
>> (cyanpart C,magentapart C,yellowpart C,blackpart C)
! Missing `)' has been inserted.
<to be read again>
                   ,
l.5 transform T; T = (k,l,m,n,
                               o,p); show T;
?

Same program adapted for luamplib causes seg fault 11
Additional InformationSomething similar was discussed in the maiking list
http://www.tug.org/pipermail/metapost/2016-October/003159.html

so I checked out the latest svn level and recompiled, but I still get the same fault.
TagsNo tags attached.

Activities

luigi scarso

2016-11-03 10:39

manager   ~0001652

Last edited: 2016-11-03 10:40

 I don't see a seg. fault in mplib with the example.

toby

2016-11-03 10:53

reporter   ~0001653

Here's a lualatex example:

\RequirePackage{luatex85}
\documentclass[border=5mm]{standalone}
\usepackage{luamplib}
\begin{document}
\mplibtextextlabel{enable}
\begin{mplibcode}
beginfig(1);
    transform G;
    G = (a,b,c,d,e,f);
    show G;
endfig;
\end{mplibcode}
\end{document}

output: (from screen, no log is produced)

This is LuaTeX, Version 0.95.0 (TeX Live 2016)
 restricted system commands enabled.
(./t.tex
LaTeX2e <2016/03/31> patch level 3
Babel <3.9r> and hyphenation patterns for 1 language(s) loaded.
(/usr/local/texlive/2016/texmf-dist/tex/generic/luatex85/luatex85.sty)
(/usr/local/texlive/2016/texmf-dist/tex/latex/standalone/standalone.cls
Document Class: standalone 2015/07/15 v1.2 Class to compile TeX sub-files stand
alone
(/usr/local/texlive/2016/texmf-dist/tex/generic/oberdiek/ifluatex.sty)
(/usr/local/texlive/2016/texmf-dist/tex/generic/oberdiek/ifpdf.sty)
(/usr/local/texlive/2016/texmf-dist/tex/generic/ifxetex/ifxetex.sty)
(/usr/local/texlive/2016/texmf-dist/tex/latex/xkeyval/xkeyval.sty
(/usr/local/texlive/2016/texmf-dist/tex/generic/xkeyval/xkeyval.tex
(/usr/local/texlive/2016/texmf-dist/tex/generic/xkeyval/xkvutils.tex
(/usr/local/texlive/2016/texmf-dist/tex/generic/xkeyval/keyval.tex))))
(/usr/local/texlive/2016/texmf-dist/tex/latex/standalone/standalone.cfg)
(/usr/local/texlive/2016/texmf-dist/tex/latex/base/article.cls
Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
(/usr/local/texlive/2016/texmf-dist/tex/latex/base/size10.clo)))
(/usr/local/texlive/2016/texmf-dist/tex/luatex/luamplib/luamplib.sty) (./t.aux)
Segmentation fault: 11

luigi scarso

2016-11-03 11:33

manager   ~0001654

can you check luatex from experimental ?

luigi scarso

2016-11-24 18:26

manager   ~0001656

Latest luatex from experimental looks ok, i.e. it shows the right error message and it doesn't give a seg. fault. Note that if t is a transform then
it cannot initialize with a six-upla (e.g. t := (0,0,1,0,0,1) ; ) as we can do with rgb and cmyk type --- this is by design.

Issue History

Date Modified Username Field Change
2016-10-31 10:15 toby New Issue
2016-11-03 10:39 luigi scarso Note Added: 0001652
2016-11-03 10:40 luigi scarso Note Edited: 0001652
2016-11-03 10:53 toby Note Added: 0001653
2016-11-03 11:33 luigi scarso Note Added: 0001654
2016-11-24 18:26 luigi scarso Note Added: 0001656
2016-11-25 11:42 luigi scarso Status new => closed
2016-11-25 11:42 luigi scarso Assigned To => luigi scarso
2016-11-25 11:42 luigi scarso Resolution open => fixed