>>>>> "A" == Aristarkh A Zagorodnikov <xm / w3d.ru> writes:

A> def expand_path(path, _path_info = '')
[...]
A> end

 a smaller example :

pigeon% cat b.rb
#!./ruby -v
def tt(aa)
   aa.insert 0, "abc"
   aa.scan /.*/
end
p tt("12345678901234567")
pigeon% 

pigeon% b.rb
ruby 1.7.1 (2001-07-15) [i686-linux]
./b.rb:4: warning: ambiguous first argument; make sure
["\001\000\000\000\001\000\000\000\210\307\020\0100\213\020\010\030\000\000\000", ""]
pigeon% 


 This is rb_str_insert() which has a problem, *wait* for confirmation from
 matz because *I'm not really sure* that this is the right modification to do 

pigeon% diff -u string.c.old string.c
--- string.c.old        Sat Jul 14 17:29:34 2001
+++ string.c    Sat Jul 14 17:38:28 2001
@@ -1208,6 +1208,7 @@
 {
     long pos = NUM2LONG(idx);
 
+    rb_str_modify(str);
     if (pos == -1) {
        pos = RSTRING(str)->len;
     }
pigeon% 
 
pigeon% b.rb
ruby 1.7.1 (2001-07-15) [i686-linux]
./b.rb:4: warning: ambiguous first argument; make sure
["abc12345678901234567", ""]
pigeon% 



Guy Decoux