(\uref): Write real definition, taking one mandatory argument and one

optional one.

texinfo.tex

@@ -1338,13 +1338,25 @@ where each line of input produces a line of output.}
 \else{\tclose{\ttsl\look}}\fi
 \else{\tclose{\ttsl\look}}\fi}
 
-% @url, @uref, @email.  Quotes do not seem necessary.
+% @url, @email.  Quotes do not seem necessary.
 \let\url=\code % perhaps include a hypertex \special eventually
-\let\uref=\code
 % rms does not like the angle brackets --karl, 17may97.
 %\def\email#1{$\langle${\tt #1}$\rangle$}
 \let\email=\code
 
+% @uref (abbreviation for `urlref') takes an optional second argument
+% specifying the text to display.  First (mandatory) arg is the url.
+% 
+\def\uref#1{\urefxxx #1,,\finish}
+\def\urefxxx#1,#2,#3\finish{%
+  \setbox0 = \hbox{\ignorespaces #2}%
+  \ifdim\wd0 > 0pt
+    \unhbox0\ (\code{#1})%
+  \else
+    \code{#1}%
+  \fi
+}
+
 % Check if we are currently using a typewriter font.  Since all the
 % Computer Modern typewriter fonts have zero interword stretch (and
 % shrink), and it is reasonable to expect all typewriter fonts to have
@@ -2089,7 +2101,7 @@ July\or August\or September\or October\or November\or December\fi
 \global\colcount=0\relax}}
 }
 
-\def\setmultitablespacing{% test to see if user has set \multitablelinespace.
+\def\setultitablespacing{% test to see if user has set \multitablelinespace.
 % If so, do nothing. If not, give it an appropriate dimension based on
 % current baselineskip.
 \ifdim\multitablelinespace=0pt