Revert "Make StringPiece data members private."

This reverts commit 904c9610fe66c4f4bd63a07d6f057c8603d24394.
The commit caused issue #380, this revert fixes it. The revert
also makes the test from the previous commit pass.

1 files changed, 5 insertions, 5 deletions

diff --git a/src/edit_distance.cc b/src/edit_distance.cc
index 50e641d..22db4fe 100644
--- a/src/edit_distance.cc
+++ b/src/edit_distance.cc
@@ -29,8 +29,8 @@ int EditDistance(const StringPiece& s1,
   // Although the algorithm is typically described using an m x n
   // array, only two rows are used at a time, so this implemenation
   // just keeps two separate vectors for those two rows.
-  int m = s1.len();
-  int n = s2.len();
+  int m = s1.len_;
+  int n = s2.len_;
 
   std::vector<int> previous(n + 1);
   std::vector<int> current(n + 1);
@@ -44,11 +44,11 @@ int EditDistance(const StringPiece& s1,
 
     for (int x = 1; x <= n; ++x) {
       if (allow_replacements) {
-        current[x] = min(previous[x-1] + (s1.str()[y-1] == s2.str()[x-1] ?
-            0 : 1), min(current[x-1], previous[x]) + 1);
+        current[x] = min(previous[x-1] + (s1.str_[y-1] == s2.str_[x-1] ? 0 : 1),
+                         min(current[x-1], previous[x])+1);
       }
       else {
-        if (s1.str()[y-1] == s2.str()[x-1])
+        if (s1.str_[y-1] == s2.str_[x-1])
           current[x] = previous[x-1];
         else
           current[x] = min(current[x-1], previous[x]) + 1;