diff --git a/README.md b/README.md
index 2000c36..a14d743 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,8 @@
-# amscpptemplate25a
+# amsstring4
+
+std::strings are awkward. Also, you can never trust the standard library. std::vector<bool> anyone?
+
+This is a mutable ASCII/UTF-8 string class with every convenience feature I can think of added in, portability shims for MSVC, and support for converting to/from unicode codepoints.
+
+Depends on amsarrays from amsmathutil25 for handling arrays of strings.
 
-Rearrange my C++ project template in an attempt to harmonize everything and modernize my build scripts.
\ No newline at end of file
diff --git a/build_linux64/libamsstring4.linux64.a b/build_linux64/libamsstring4.linux64.a
index d510542..b3f7698 100644
Binary files a/build_linux64/libamsstring4.linux64.a and b/build_linux64/libamsstring4.linux64.a differ
diff --git a/build_linux64/objstore/amsstring4_convenience1.o b/build_linux64/objstore/amsstring4_convenience1.o
index f52bfc1..06818fb 100644
Binary files a/build_linux64/objstore/amsstring4_convenience1.o and b/build_linux64/objstore/amsstring4_convenience1.o differ
diff --git a/build_linux64/tests b/build_linux64/tests
index d53356e..eadb4dd 100644
Binary files a/build_linux64/tests and b/build_linux64/tests differ
diff --git a/include/amsstring4/amsstring4.hpp b/include/amsstring4/amsstring4.hpp
index f495d32..7c6e1ec 100644
--- a/include/amsstring4/amsstring4.hpp
+++ b/include/amsstring4/amsstring4.hpp
@@ -174,6 +174,10 @@ amsarray<amsstring> splitwhitespace(const amsstring &s);
 amsstring stripwhitespace(const amsstring &s);
 amsstring stripallwhitespace(const amsstring &s);
 
+//splits a string into contiguous sets of alphanumeric characters ignoring non-alphanums
+amsarray<amsstring> splitalphanum(const amsstring &s); //
+
+
 //splits into two guaranteed pieces
 //if an extension separator . is not encountered, the first piece will contain the entire string, the second ""
 amsarray<amsstring> splitext(const amsstring &s);
diff --git a/src/amsstring4/amsstring4_convenience1.cpp b/src/amsstring4/amsstring4_convenience1.cpp
index efb473a..651c703 100644
--- a/src/amsstring4/amsstring4_convenience1.cpp
+++ b/src/amsstring4/amsstring4_convenience1.cpp
@@ -379,8 +379,8 @@ amsarray<amsstring> splitpath(const amsstring &s)
     ret.resize(2);
     int ind1,ind2;
 
-    ind1 = s.find('/');
-    ind2 = s.find('\\');
+    ind1 = s.findright('/');
+    ind2 = s.findright('\\');
     if(ind1>=0)
     {
         if(ind1==0)