Issue 5146 - Implement DownloadableSubscription parsing in C++

compiled/String.h

Index: compiled/String.h
===================================================================
--- a/compiled/String.h
+++ b/compiled/String.h
@@ -186,16 +186,33 @@
       if (currChar >= u'A' && currChar <= u'Z')
         mBuf[i] = currChar + u'a' - u'A';
       else if (currChar >= 128)
       {
         mBuf[i] = CharToLower(currChar);
       }
     }
   }
+
+  int toInt() const
+  {

[hub, 2017/11/27 17:15:44]

This is redundant with some of the changes in
https://codereview.adblockplus.org/29548581/

+    size_type count = 0;
+    int value = 0;
+    for (size_type i = 0; i < length(); i++)
+    {
+      if (mBuf[i] < u'0' || mBuf[i] > u'9')
+        return 0;
+      value *= 10;
+      value += mBuf[i] - u'0';
+      count++;
+      if (count > 8)
+        return 0;
+    }
+    return value;
+  }
 };
 
 class DependentString : public String
 {
 public:
   explicit DependentString()
       : String(nullptr, 0, INVALID)
   {