Hello, world! :)

I'm a recent LaTeX->ConTeXt convert, and I've started working on .lfg files for

MnSymbol (and related MdSymbol and FdSymbol) fonts. The code written so far is

Here's a bit of info first, and then a couple of questions.

MnSymbol font consists of following files in several design sizes:

- MnSymbolA*.tfm - arrows

- MnSymbolB*.tfm - negated (stroked) arrows

- MnSymbolC*.tfm - binary operators

- MnSymbolD*.tfm - relations

- MnSymbolE*.tfm - brackets, braces, parens, sqrt, overbrace, widehat,...

- MnSymbolF*.tfm - big operators

Getting MnSymbolA-D to work is a matter of writing the right unicode->tfm slot

vectors ("symb-a", ..., "symb-d") and is a WIP.

1. I couldn't get MnSymbolE to work with "extension=true", so I have patched

math-vfu.lua in a way that allows me to set bigger sizes for brackets, etc.

manually in mnsymbol.lfg. Is there a better/smarter way to do this?

2. MnSymbol has a lot of non-unicode glyphs. What's the right way of using

(some of) them in ConTeXt? I was thinking of mapping them to a private use area

(eg. [0x0F000] = 18) and then defining \def\somename{\Umathchar"0"0"F000} on TeX

end. What is the syntax of \Umathchar? I skimmed the LuaTeX manual, but couldn't

find it.

3. Overbrace and underbrace don't work at all, but they do give correct output

with \showmathfontcharacters. I can't figure out why. Widetilde and widehat work

OK.

4. MnSymbol has both / (slash, solidus) and \ (backslash, reverse solidus) in

several sizes. Slash works with \left, \middle, \right, but backslash doesn't.

How can this be fixed?

5. There are glyphs for \cdots, \vdots, \udots, etc. in MnSymbolC, but even

after setting them in "symb-c" vector, I'm under the impression that faked dots

from math-vfu.lua are used. Am I wrong?

6. How can I set rule thickness for \sqrt?

Thanks in advance!

-- Nikola Milinković