--- a/doc/interpreter/macros.texi
+++ b/doc/interpreter/macros.texi
@@ -16,8 +16,8 @@
 @c along with Octave; see the file COPYING.  If not, see
 @c <http://www.gnu.org/licenses/>.
 
-@c FIXME -- someday, we might replace this with @backslashchar, which
-@c has been added to Texinfo.
+@c FIXME: someday, when Texinfo 5.X is standard, we might replace this with
+@c @backslashchar, which is an new addition to Texinfo.
 
 @macro xbackslashchar
 \\
@@ -62,12 +62,12 @@
 @c expansion of the @code{XXX} macro is `XXX'.  The use of the apostrophe
 @c can be confusing if the code segment itself ends with a transpose operator.
 @ifinfo
-@macro xcode{arg}
+@macro tcode{arg}
 \arg\
 @end macro
 @end ifinfo
 @ifnotinfo
-@macro xcode{arg}
+@macro tcode{arg}
 @code{\arg\}
 @end macro
 @end ifnotinfo

--- a/libinterp/corefcn/data.cc
+++ b/libinterp/corefcn/data.cc
@@ -5369,7 +5369,7 @@
 DEFUN (uplus, args, ,
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} uplus (@var{x})\n\
-This function and @w{@xcode{+ x}} are equivalent.\n\
+This function and @w{@tcode{+ x}} are equivalent.\n\
 @seealso{uminus, plus, minus}\n\
 @end deftypefn")
 {
@@ -5379,7 +5379,7 @@
 DEFUN (uminus, args, ,
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} uminus (@var{x})\n\
-This function and @w{@xcode{- x}} are equivalent.\n\
+This function and @w{@tcode{- x}} are equivalent.\n\
 @seealso{uplus, minus}\n\
 @end deftypefn")
 {
@@ -5390,7 +5390,7 @@
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} transpose (@var{x})\n\
 Return the transpose of @var{x}.\n\
-This function and @xcode{x.'} are equivalent.\n\
+This function and @tcode{x.'} are equivalent.\n\
 @seealso{ctranspose}\n\
 @end deftypefn")
 {
@@ -5421,7 +5421,7 @@
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} ctranspose (@var{x})\n\
 Return the complex conjugate transpose of @var{x}.\n\
-This function and @xcode{x'} are equivalent.\n\
+This function and @tcode{x'} are equivalent.\n\
 @seealso{transpose}\n\
 @end deftypefn")
 {
@@ -5495,7 +5495,7 @@
   "-*- texinfo -*-\n\
 @deftypefn  {Built-in Function} {} plus (@var{x}, @var{y})\n\
 @deftypefnx {Built-in Function} {} plus (@var{x1}, @var{x2}, @dots{})\n\
-This function and @w{@xcode{x + y}} are equivalent.\n\
+This function and @w{@tcode{x + y}} are equivalent.\n\
 If more arguments are given, the summation is applied\n\
 cumulatively from left to right:\n\
 \n\
@@ -5514,7 +5514,7 @@
 DEFUN (minus, args, ,
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} minus (@var{x}, @var{y})\n\
-This function and @w{@xcode{x - y}} are equivalent.\n\
+This function and @w{@tcode{x - y}} are equivalent.\n\
 @seealso{plus, uminus}\n\
 @end deftypefn")
 {
@@ -5526,7 +5526,7 @@
 @deftypefn  {Built-in Function} {} mtimes (@var{x}, @var{y})\n\
 @deftypefnx {Built-in Function} {} mtimes (@var{x1}, @var{x2}, @dots{})\n\
 Return the matrix multiplication product of inputs.\n\
-This function and @w{@xcode{x * y}} are equivalent.\n\
+This function and @w{@tcode{x * y}} are equivalent.\n\
 If more arguments are given, the multiplication is applied\n\
 cumulatively from left to right:\n\
 \n\
@@ -5546,7 +5546,7 @@
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} mrdivide (@var{x}, @var{y})\n\
 Return the matrix right division of @var{x} and @var{y}.\n\
-This function and @w{@xcode{x / y}} are equivalent.\n\
+This function and @w{@tcode{x / y}} are equivalent.\n\
 @seealso{mldivide, rdivide, plus, minus}\n\
 @end deftypefn")
 {
@@ -5557,7 +5557,7 @@
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} mpower (@var{x}, @var{y})\n\
 Return the matrix power operation of @var{x} raised to the @var{y} power.\n\
-This function and @w{@xcode{x ^ y}} are equivalent.\n\
+This function and @w{@tcode{x ^ y}} are equivalent.\n\
 @seealso{power, mtimes, plus, minus}\n\
 @end deftypefn")
 {
@@ -5568,7 +5568,7 @@
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} mldivide (@var{x}, @var{y})\n\
 Return the matrix left division of @var{x} and @var{y}.\n\
-This function and @w{@xcode{x @xbackslashchar{} y}} are equivalent.\n\
+This function and @w{@tcode{x @xbackslashchar{} y}} are equivalent.\n\
 @seealso{mrdivide, ldivide, rdivide}\n\
 @end deftypefn")
 {
@@ -5642,7 +5642,7 @@
 @deftypefn  {Built-in Function} {} times (@var{x}, @var{y})\n\
 @deftypefnx {Built-in Function} {} times (@var{x1}, @var{x2}, @dots{})\n\
 Return the element-by-element multiplication product of inputs.\n\
-This function and @w{@xcode{x .* y}} are equivalent.\n\
+This function and @w{@tcode{x .* y}} are equivalent.\n\
 If more arguments are given, the multiplication is applied\n\
 cumulatively from left to right:\n\
 \n\
@@ -5662,7 +5662,7 @@
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} rdivide (@var{x}, @var{y})\n\
 Return the element-by-element right division of @var{x} and @var{y}.\n\
-This function and @w{@xcode{x ./ y}} are equivalent.\n\
+This function and @w{@tcode{x ./ y}} are equivalent.\n\
 @seealso{ldivide, mrdivide, times, plus}\n\
 @end deftypefn")
 {
@@ -5678,7 +5678,7 @@
 @code{realpow}, @code{realsqrt}, @code{cbrt}, or @code{nthroot} if a\n\
 real result is preferred.\n\
 \n\
-This function and @w{@xcode{x .^ y}} are equivalent.\n\
+This function and @w{@tcode{x .^ y}} are equivalent.\n\
 @seealso{mpower, realpow, realsqrt, cbrt, nthroot}\n\
 @end deftypefn")
 {
@@ -5689,7 +5689,7 @@
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} ldivide (@var{x}, @var{y})\n\
 Return the element-by-element left division of @var{x} and @var{y}.\n\
-This function and @w{@xcode{x .@xbackslashchar{} y}} are equivalent.\n\
+This function and @w{@tcode{x .@xbackslashchar{} y}} are equivalent.\n\
 @seealso{rdivide, mldivide, times, plus}\n\
 @end deftypefn")
 {

--- a/libinterp/corefcn/lu.cc
+++ b/libinterp/corefcn/lu.cc
@@ -615,7 +615,7 @@
 @end example\n\
 \n\
 @noindent\n\
-then a factorization of @xcode{@var{A}+@var{x}*@var{y}.'} can be obtained\n\
+then a factorization of @tcode{@var{A}+@var{x}*@var{y}.'} can be obtained\n\
 either as\n\
 \n\
 @example\n\

--- a/libinterp/corefcn/schur.cc
+++ b/libinterp/corefcn/schur.cc
@@ -305,7 +305,7 @@
 $U^{\\dagger} U$ is the identity matrix I.\n\
 @end tex\n\
 @ifnottex\n\
-@xcode{@var{UR} * @var{TR} * @var{UR}' = @var{U} * @var{T} * @var{U}'} and\n\
+@tcode{@var{UR} * @var{TR} * @var{UR}' = @var{U} * @var{T} * @var{U}'} and\n\
 @code{@var{U}' * @var{U}} is the identity matrix I.\n\
 @end ifnottex\n\
 \n\

--- a/libinterp/dldfcn/symbfact.cc
+++ b/libinterp/dldfcn/symbfact.cc
@@ -63,10 +63,10 @@
 Factorize @code{@var{S}' * @var{S}}.\n\
 \n\
 @item row\n\
-Factorize @xcode{@var{S} * @var{S}'}.\n\
+Factorize @tcode{@var{S} * @var{S}'}.\n\
 \n\
 @item lo\n\
-Factorize @xcode{@var{S}'}\n\
+Factorize @tcode{@var{S}'}\n\
 @end table\n\
 \n\
 @item mode\n\

--- a/scripts/linear-algebra/krylov.m
+++ b/scripts/linear-algebra/krylov.m
@@ -28,8 +28,8 @@
 ## Using Householder reflections to guard against loss of orthogonality.
 ##
 ## If @var{V} is a vector, then @var{h} contains the Hessenberg matrix
-## such that @nospell{@xcode{a*u == u*h+rk*ek'}}, in which @code{rk =
-## a*u(:,k)-u*h(:,k)}, and @nospell{@xcode{ek'}} is the vector
+## such that @nospell{@tcode{a*u == u*h+rk*ek'}}, in which @code{rk =
+## a*u(:,k)-u*h(:,k)}, and @nospell{@tcode{ek'}} is the vector
 ## @code{[0, 0, @dots{}, 1]} of length @code{k}.  Otherwise, @var{h} is
 ## meaningless.
 ##

--- a/scripts/sparse/etreeplot.m
+++ b/scripts/sparse/etreeplot.m
@@ -20,7 +20,7 @@
 ## @deftypefn  {Function File} {} etreeplot (@var{A})
 ## @deftypefnx {Function File} {} etreeplot (@var{A}, @var{node_style}, @var{edge_style})
 ## Plot the elimination tree of the matrix @var{A} or
-## @xcode{@var{A}+@var{A}'} if @var{A} in not symmetric.  The optional
+## @tcode{@var{A}+@var{A}'} if @var{A} in not symmetric.  The optional
 ## parameters @var{node_style} and @var{edge_style} define the output
 ## style.
 ## @seealso{treeplot, gplot}