[pypy-svn] pypy default: Implement str.rsplit for the cli backend

[amauryfa]

Author: Amaury Forgeot d'Arc <amauryfa at gmail.com>
Branch: 
Changeset: r43027:56cab8762a29
Date: 2011-03-30 13:28 +0200
http://bitbucket.org/pypy/pypy/changeset/56cab8762a29/

Log:	Implement str.rsplit for the cli backend

diff --git a/pypy/translator/cli/src/pypylib.cs b/pypy/translator/cli/src/pypylib.cs
--- a/pypy/translator/cli/src/pypylib.cs
+++ b/pypy/translator/cli/src/pypylib.cs
@@ -26,7 +26,10 @@
             else {
                 string res = "";
                 foreach(char ch in x)
-                    res+= string.Format("\\x{0:X2}", (int)ch);
+                    if (ch >= 32 && ch < 128)
+                        res+= ch;
+                    else
+                        res+= string.Format("\\x{0:X2}", (int)ch);
                 return string.Format("'{0}'", res);
             }
         }
@@ -725,6 +728,25 @@
                 return s.Split(new Char[] {ch}, max + 1);
         }
 
+        public static string[] ll_rsplit_chr(string s, char ch, int max)
+        {
+            string[] splits = s.Split(ch);
+            if (max < 0 || splits.Length <= max + 1)
+                return splits;
+            else {
+                /* XXX not very efficient */
+                string first = splits[0];
+                // join the first (length - max - 1) items
+                int i;
+                for (i = 1; i < splits.Length - max; i++)
+                    first += ch + splits[i];
+                splits[0] = first;
+                Array.Copy(splits, i, splits, 1, max);
+                Array.Resize(ref splits, max + 1);
+                return splits;
+            }
+        }
+
         public static bool ll_contains(string s, char ch)
         {
             return s.IndexOf(ch) != -1;