On 9/12/2016 10:02 PM, Hans Åberg wrote:
On 12 Sep 2016, at 21:45, Hans Hagen <pra...@wxs.nl> wrote:
On 9/12/2016 8:25 PM, Hans Åberg wrote:
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)
I’m not sure what you mean here: I must write $ ‘𝐝𝐢𝐦’ 𝑉$, because $‘𝐝𝐢𝐦’ 𝑉$
will not see the \catcode`‘=\activecatcode. So LuaTeX must see an ordinary
letter after $ before it can see an \activecatcode character.
It does not happen with TeX using
\catcode`\‘=\active
\def‘#1’{\csname #1\endcsname}
sure, but when you do
\appendtoks
\catcode`\‘=\active
\def‘#1’{\csname #1\endcsname}
\to ...
only tokens get added to the register ... so the ‘ after the \def is not
active (yet)
in addition when tex sees a $ it will look for a next token (in case
it's a $ for display mode) and it sees a quote (no everymath doen then)
which it will push back
Hans
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Hans Hagen | PRAGMA ADE
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