Arthur Reutenauer wrote:
On Tue, Nov 15, 2011 at 02:20:17PM +0000, Philip TAYLOR wrote:
No ! "A catcode is for life, not just for Christmas" ! Once a
character has been read, and bound into a character/catcode pair,
that catcode remains immutable.
Do you mean that as a general good practice in TeX programming, or as
a description of how TeX works? The latter is obviously wrong.
"The latter" is what the TeXbok says (P.~39) : "Once a category code
has been attached to a character token, the attachment is permanent."
** Phil.
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