On 9/12/2016 8:25 PM, Hans Åberg wrote:
Found a workaround: The idea is to use \csname …\endcsname with two delimiters not likely to be used in math mode, below chosen to ‘…’.
But then there seems to be a bug in the LuaTex \letcharcode command: There must be a character between “$” and the first occurring \activecatcode letter. Possibly this also causes a bug in \startformula, as discussed before.
it's not a bug .. tex looks ahead for a second $ and in the process expands the next token which happens to be a letter at that point so it gets injected as letter (it's the way tex works) \appendtoks \catcode`𝐝\lettercatcode \catcode`𝐢\lettercatcode \catcode`𝐦\lettercatcode \to \everymathematics \definemathcommand[𝐝𝐢𝐦][nolop]{\mfunction{𝐦𝐢𝐝}} \starttext Note that $ \𝐝𝐢𝐦 𝑉 = 𝖫$, although $\dim 𝑉 = 4$. And a bug: $\𝐝𝐢𝐦 𝑉$. \stoptext fwiw, the current beta makes math characters also letters now ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------