On 07/12/2011 04:57 PM, Philipp Stephani wrote:
The second pattern is used to save a math code and restore it later. You could save the math code in an integer register or macro, but then you couldn't use that as a mathematical character shorthand. I don't know what reasons Knuth had to introduce special syntax for \chardefs/\mathchardefs,
Some byte-saving or hash-saving or time-saving measure, I'll wager.
but I think most TeX users expect this syntax to be present.
Sure, I assume so. \Umathcharnumdef moved to the list for 0.80.0. Best wishes, Taco
