Fixed function links in doc/manual/strings.rst

doc/manual/strings.rst

@@ -97,7 +97,7 @@ convert an integer value back to a ``Char`` just as easily:
  'x'
 
 Not all integer values are valid Unicode code points, but for
-performance, the ``char`` conversion does not check that every character
+performance, the :func:`char` conversion does not check that every character
 value is valid. If you want to check that each converted value is a
 valid code point, use the :func:`is_valid_char` function:
 
@@ -388,7 +388,7 @@ One of the most common and useful string operations is concatenation:
  "Hello, world.\n"
 
 Constructing strings like this can become a bit cumbersome, however. To
-reduce the need for these verbose calls to ``string``, Julia allows
+reduce the need for these verbose calls to :func:`string`, Julia allows
 interpolation into string literals using ``$``, as in Perl:
 
 .. doctest::
@@ -466,7 +466,7 @@ operators:
  true
 
 You can search for the index of a particular character using the
-``search`` function:
+:func:`search` function:
 
 .. doctest::
 
@@ -493,7 +493,7 @@ a third argument:
  julia> search("xylophone", 'o', 8)
  0
 
-Two other handy string functions are ``repeat`` and ``join``:
+Two other handy string functions are :func:`repeat` and :func:`join`:
 
 .. doctest::
 
@@ -558,7 +558,7 @@ any options turned on just uses ``r"..."``:
  julia> typeof(ans)
  Regex (constructor with 3 methods)
 
-To check if a regex matches a string, use the ``ismatch`` function:
+To check if a regex matches a string, use the :func:`ismatch` function:
 
 .. doctest::
 
@@ -572,7 +572,7 @@ As one can see here, ``ismatch`` simply returns true or false,
 indicating whether the given regex matches the string or not. Commonly,
 however, one wants to know not just whether a string matched, but also
 *how* it matched. To capture this information about a match, use the
-``match`` function instead:
+:func:`match` function instead:
 
 .. doctest::