Hi, Stephen,
On Fri, May 30, 2014 at 04:07:04AM +0900, Stephen J. Turnbull wrote:
Yup, "!" is not a syntax designator in XEmacs 21.5. (Nor
is "|".) I
don't really understand what these are for, the Emacs documentation is
terse and doesn't really make sense.
They're generic comment delimiters. You can put syntax-table text
properties with this value on a pair of buffer positions, and this will
syntactically turn everything between them into a comment. CC Mode uses
these in GNU Emacs to "comment out" C preprocessor directives (e.g.
#define) to speed up certain syntactic analysis. (It also needs the
category property for this).
"|" _is_ a syntactic designator in XEmacs, just as in GNU Emacs. AWK
Mode has used generic string dellimiters to mark unterminated strings for
over a decade. ;-)
--
Alan Mackenzie (Nuremberg, Germany).
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