Hi,
I upgrsded lmtx. A few small things (emntioned already) at the tex end
but Alan and I are now in metafun mode.
I (finally) adpated lmtx to delegated mplib logging, so
\startMPcode{doublefun}
tracingall ; fill fullcircle scaled 3cm withcolor "darkmagenta" ;
\stopMPcode
should work. Just in case someone keeps an eye on the metafun code and
wonders what 'records' are, here is an example:
\starttext
\startMPcode
record FooA ; interim FooA := newrecord [
name = "FooA"
index = 123
] ;
record FooB ; interim FooB := newrecord [
name = "FooB"
index = 456
] ;
record FooC ; interim FooC := newrecord [
name = "FooC"
index = 789,
crap = [
more = "MORE"
]
] ;
draw textext(getrecord(FooA).name) rotated -45 withcolor
"darkred" ;
draw textext(getrecord(FooB).name) rotated 0 withcolor
"darkgreen" ;
draw textext(getrecord(FooC).name) rotated 45 withcolor
"darkblue" ;
draw textext(getrecord(FooC).crap.more) rotated 90 withcolor
"darkgray" ;
begingroup;
interim FooC := newrecord [
name = "FooC"
index = 789,
crap = [
more = "NESTED 1"
]
] ;
draw textext(getrecord(FooC).crap.more) shifted (0,-1cm)
withcolor "darkgray" ;
draw textext(FooC) shifted (2cm,-1cm) withcolor "darkgray" ;
begingroup;
interim FooC := newrecord [
crap = [
more = "NESTED 2"
]
] ;
draw textext(getrecord(FooC).index) shifted (4cm,-2cm)
withcolor "darkgray" ;
draw textext(getrecord(FooC).crap.more) shifted (0,-2cm)
withcolor "darkgray" ;
draw textext(FooC) shifted (2cm,-2cm) withcolor "darkgray" ;
endgroup;
endgroup;
draw textext(getrecord(FooC).crap.more) shifted (0,-3cm) withcolor
"darkgray" ;
draw textext(FooC) shifted (2cm,-3cm) withcolor "darkgray" ;
record FooD ; interim FooD := newrecord [
name = "FooD"
list = { 11, 22, 33, 44 }
] ;
for i=1 upto getrecord FooD.list[] :
draw textext(getrecord(FooD).list[i]) shifted (i*cm,-5cm)
withcolor "darkgray" ;
endfor ;
for i=1 upto getrecord FooD.#list :
draw textext(getrecord(FooD).list[i]) shifted (5cm+i*cm,-5cm)
withcolor "darkred" ;
endfor ;
numeric v ;
for i=1 upto 10000 :
v := 0 ;
for j=1 upto 4 :
v := v + getrecord FooD.list[j] ;
endfor ;
endfor ;
draw textext(v) shifted (12cm,-5cm) withcolor "darkgray" ;
interim FooD := setrecord [
name = "FooD"
tsil = { 44, 33, 22, 11 }
] ;
for i=1 upto getrecord FooD.#list :
draw textext(getrecord FooD.list[i]) shifted (5cm+i*cm,-6cm)
withcolor "darkgreen" ;
endfor ;
for i=1 upto getrecord FooD.#tsil :
draw textext(getrecord FooD.tsil[i]) shifted (5cm+i*cm,-7cm)
withcolor "darkgray" ;
endfor ;
tracingall ;
draw textext(getrecord FooD.list[2]) shifted (5cm,-8cm) withcolor
"darkmagenta" ;
\stopMPcode
\startluacode
inspect(metapost.getrecord("FooA"))
inspect(metapost.getrecord("FooB"))
inspect(metapost.getrecord("FooC"))
inspect(metapost.getrecord("FooD"))
\stopluacode
\stoptext
So, one can store structured data at the mp end, use it there, and
access it also from lua (after all it's done in lua). It honors metapost
grouping (which is what interim does with internals, and records use
metapost internals as reference).
Hans
-----------------------------------------------------------------
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-----------------------------------------------------------------
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