Hagen - Pragma ADE

94
Features
In fact, in addition to already mentioned mapfiles and virtuals subtables, we can pass
variables and overload parameters.
return {
name = "lm-math",
...
mathematics = {
mapfiles = {
...
},
virtuals = {
...
variables = {
joinrelfactor = 3, -- default anyway
},
parameters = { -- test values
-- FactorA = 123.456,
-- FactorB = false,
-- FactorC = function(value,target,original)
-- return 7.89 * target.factor
-- end,
-- FactorD = "Hi There!",
},
}
}
This kind of goodie functionality is typical for the development of LuaT E X and experimental
math fonts and no user should ever be bothered with it. However, it demonstrates
that we’re not stuck with only features built in the fonts.
It can be that a user is not satisfied by some aspects of a math font design. There is not
much that we can do about the shapes, but we can manipulate for instance dimensions.
For this there are two mechanism available: automatically applied dimensional fixes
and a mathdimensions feature. Both work with the same goody specification.
mathematics = {
...
dimensions = {
},
...
}
The entries in a dimensions table are tables themselves. There can be many of them so
one can organize dimensional tweaks in groups. The default group is always applied,
while others are applied on demand. Say that want to tweak all ± and ∓. 6
6 In fact, this mechanism is a a response to a mail on the ConTE Xt mailing list.