[Bug classpath/26112] string.replaceAll("\\")

[mark at gcc dot gnu dot org]

------- Comment #1 from mark at gcc dot gnu dot org  2006-02-06 14:07 -------
Confirmed. replaceAll can be use groupbackreferences through $1-$9 and this
actually works. See Matcher.appendReplacement() and REMatcher.substituteInto().
But we don't properly handle escaping using backslash \.

Here is a small example:

public class ReplaceAll
{
  public static void main(String[] args) throws Exception
  {
    String s = "some.dotted.text ending in a dot.";
    s = s.replaceAll("\\.", "\\\\.");
    System.out.println(s);

    s = "Start by saying 'Hello Mark'";
    s = s.replaceAll("Hello (\\w+)",
                     "Welcome $1, do you want anything to drink, $1?");
    System.out.println(s);

    s = "All dollars are written as $";
    s = s.replaceAll("$", "\\$ (the dollar-sign)");
    System.out.println(s);
  }
}

We only handle the second replace correctly.


-- 

mark at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mark at gcc dot gnu dot org
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2006-02-06 14:07:18
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26112