Regular expressions: Difference between revisions

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 =={{header|D}}==
-<lang d>import std.stdio, std.regexp;
+<lang d>import std.stdio, std.regex;
 void main() {
-    string s = "I am a string";
+    immutable string s = "I am a string";
     // Test:
-    if (search(s, r"string$"))
+    if (!match(s, r"string$").empty)
-        writefln("Ends with 'string'");
+        writeln("Ends with 'string'.");
-    // Test, storing the regular expression:
-    auto re1 = RegExp(r"string$");
-    if (re1.search(s).test)
-        writefln("Ends with 'string'");
     // Substitute:
-    writefln(sub(s, " a ", " another "));
+    replace(s, regex(" a "), " another ").writeln();
-    // Substitute, storing the regular expression:
-    auto re2 = RegExp(" a ");
-    writefln(re2.replace(s, " another "));
 }</lang>
+{{out}}
+<pre>Ends with 'string'.
-Note that in std.string there are string functions to perform those string operations in a faster way.
+I am another string</pre>
+In std.string there are string functions to perform the same operations more efficiently.
 =={{header|Erlang}}==