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From: Floris van Manen <vm@klankschap.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: [metafun example does not compile]
Date: Fri, 21 May 2021 14:03:37 +0200	[thread overview]
Message-ID: <28472600-3170-e6ae-c824-48c8f1d0a8c9@klankschap.nl> (raw)

Using the example from the wiki
https://wiki.contextgarden.net/textext_positioning

then using the latest version of lmtx

$ context --version
mtx-context     | ConTeXt Process Management 1.04
mtx-context     |
mtx-context     | main context file: 
/home/vm/context/tex/texmf-context/tex/context/base/mkiv/context.mkiv
mtx-context     | current version: 2021.05.20 16:06
mtx-context     | main context file: 
/home/vm/context/tex/texmf-context/tex/context/base/mkxl/context.mkxl
mtx-context     | current version: 2021.05.20 16:06


it will produce an error (and an empty page)


metapost        > initializing instance 'metafun:1' using format 
'metafun' and method 'default'
metapost        > loading 'metafun' as 'metafun.mpxl' using method 'default'
metapost        > initializing number mode 'scaled'
metafun         > log >
metafun         > log > error: Unknown relation will be considered false
metafun         > log >
metapost        > log >
metapost        > log > <to be read again>
metapost        > log >                    )
metapost        > log > 
thetextext->...FIX2)(rawtextext(ddecimal(EXPR3)),(EXPR4))else:if.anchortextexts>0:image(draw(EXPR3)withprescript"tx_anchor="&ddecimal(EXPR4))else:(EXPR3)fi.if(mfun_labtype(SUFFIX2)>=10)
metapost        > log > 
 
 
:shifted(0,y...
metapost        > log > 
thetextext->begingroup.if.string(EXPR3):thetextext(SUFFIX2)(rawtextext((EXPR3)),(EXPR4))
metapost        > log > 
 
elseif.numeric(EXPR3):thetextext(SUFFIX2)(rawtextext(decimal(EXPR3)),(EXPR4))elseif.pair(EXPR3):thetextext(SU...
metapost        > log > 
textext->begingroup.thetextext(SUFFIX2)((EXPR3),origin)
metapost        > log > 
       endgroup
metapost        > log > <*> ...A; draw PA withpen pencircle scaled 1.5mm 
withcolor red; pair PB ; PB := PA shifted decal ; draw textext.drt 
("DRT-" & MonTexte) shifted PB; draw textext.dflt("DFLT-" & MonTexte)
metafun         > log >
metafun         > log > Oh dear. I can't decide if the expression above 
is positive, negative, or zero.
So this comparison test won't be 'true'.




As in most of the cases with software, there is (probably) a reason to 
it ;-)


.F
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             reply	other threads:[~2021-05-21 12:03 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-21 12:03 Floris van Manen [this message]
2021-05-21 12:14 ` Taco Hoekwater
2021-05-21 12:29   ` Floris van Manen
2021-05-21 12:15 ` Floris van Manen

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