Hi,
I'm learning to use luatex these days, one day actually. It's very
interesting. Although reference manuals are available, I still don't
know how to implement my designation.
The thing is, I know there's a "self" variable for object-oriented
programming, like
==================================================================
\startluacode
testdata = { a = 0,
b = 0,
c = 0,
plus = function (self)
self.c = self.a + self.b
end
}
mytest = testdata
mytest.a=10
mytest.b=100
mytest:plus()
tex.print(mytest.c)
\stopluacode
==================================================================
OK, but what if I wanna do something more, like substract? I would
like to use another object, like
==================================================================
\startluacode
testdata = { a = 0,
b = 0,
c = 0,
calc = Calc
}
Calc = { plus = function (self)
self.c = self.a + self.b
end,
substract = function (self)
self.c = self.a - self.b
end
}
mytest = testdata
mytest.a=10
mytest.b=100
mytest.calc:plus()
tex.print(mytest.c)
\stopluacode
==================================================================
Of course this won't work, for the "self" in Calc refers to mytest.calc
rather than mytest. How to implement things like that?
Thanks in advance.
--
Best Regards
Chen
----------------------------------------------------------------
Zhi-chu Chen | Shanghai Synchrotron Radiation Facility
No. 2019 | Jialuo Rd. | Jiading | Shanghai | P.R. China
tel: 086 21 5955 3405 | zhichu.chen.googlepages.com
| www.sinap.ac.cn
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