Markup identifier regexps as <code> for better readability

git-svn-id: http://svn.php.net/repository/phpdoc/en@345951 c90b9560-bf6c-de11-be94-00142212c4b1

Author: cmb

trunk/language/constants.xml

@@ -16,7 +16,7 @@
    valid constant name starts with a letter or underscore, followed
    by any number of letters, numbers, or underscores. As a regular
    expression, it would be expressed thusly:
-   <literal>[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*</literal>
+   <code>[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*</code>
   </para>
   &tip.userlandnaming;
   <para>

trunk/language/functions.xml

@@ -36,7 +36,7 @@ function foo($arg_1, $arg_2, /* ..., */ $arg_n)
     valid function name starts with a letter or underscore, followed
     by any number of letters, numbers, or underscores. As a regular
     expression, it would be expressed thus:
-    <literal>[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*</literal>.
+    <code>[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*</code>.
    </para>
    &tip.userlandnaming;
    <simpara>

trunk/language/variables.xml

@@ -16,7 +16,7 @@
     valid variable name starts with a letter or underscore, followed
     by any number of letters, numbers, or underscores. As a regular
     expression, it would be expressed thus:
-    '<literal>[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*</literal>'
+    <code>[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*</code>
    </para>
 
    <note>