Fix confusing interaction between @code macro and transpose operator (') in documentation (Bug #34661). * octave.texi: Define new @xcode macro which expands to nothing in plain text or Info output. Expands to normal @code for all other formats. * data.cc: Rephrase documentation for functions which have operator equivalents. Use @xcode macro to mark the operator equivalent for these functions. * expr.txi: Use @asis markup in table to prevent confusion between transpose operator and @code expansion in Info format. * mk_doc_cache.m, __makeinfo__.m: Add processing for new @xcode macro. * krylov.m, etreeplot.m, lu.cc, schur.cc, symbfact.cc: Use new @xcode macro.

--- a/src/DLD-FUNCTIONS/symbfact.cc	Tue Nov 01 13:30:23 2011 -0400
+++ b/src/DLD-FUNCTIONS/symbfact.cc	Tue Nov 01 11:08:18 2011 -0700
@@ -63,10 +63,10 @@
 Factorize @code{@var{S}' * @var{S}}.\n\
 \n\
 @item row\n\
-Factorize @code{@var{S} * @var{S}'}.\n\
+Factorize @xcode{@var{S} * @var{S}'}.\n\
 \n\
 @item lo\n\
-Factorize @code{@var{S}'}\n\
+Factorize @xcode{@var{S}'}\n\
 @end table\n\
 \n\
 @item mode\n\