Update style to (almost) conform to ndn-cxx style using clang-format
diff --git a/src/hash-helper.cpp b/src/hash-helper.cpp
index cfd94e4..6ffdbcd 100644
--- a/src/hash-helper.cpp
+++ b/src/hash-helper.cpp
@@ -21,118 +21,123 @@
 #include "hash-helper.h"
 
 #include <boost/assert.hpp>
-#include <boost/throw_exception.hpp>
-#include <boost/make_shared.hpp>
 #include <boost/lexical_cast.hpp>
-#include <openssl/evp.h>
+#include <boost/make_shared.hpp>
+#include <boost/throw_exception.hpp>
 #include <fstream>
+#include <openssl/evp.h>
 
 typedef boost::error_info<struct tag_errmsg, std::string> errmsg_info_str;
 typedef boost::error_info<struct tag_errmsg, int> errmsg_info_int;
 
-#include <boost/archive/iterators/transform_width.hpp>
-#include <boost/iterator/transform_iterator.hpp>
 #include <boost/archive/iterators/dataflow_exception.hpp>
+#include <boost/archive/iterators/transform_width.hpp>
 #include <boost/filesystem/fstream.hpp>
+#include <boost/iterator/transform_iterator.hpp>
 
 using namespace boost;
 using namespace boost::archive::iterators;
 using namespace std;
 namespace fs = boost::filesystem;
 
-template<class CharType>
+template <class CharType>
 struct hex_from_4_bit
 {
   typedef CharType result_type;
-  CharType operator () (CharType ch) const
+  CharType
+  operator()(CharType ch) const
   {
-    const char *lookup_table = "0123456789abcdef";
+    const char* lookup_table = "0123456789abcdef";
     // cout << "New character: " << (int) ch << " (" << (char) ch << ")" << "\n";
-    BOOST_ASSERT (ch < 16);
+    BOOST_ASSERT(ch < 16);
     return lookup_table[static_cast<size_t>(ch)];
   }
 };
 
 typedef transform_iterator<hex_from_4_bit<string::const_iterator::value_type>,
-                           transform_width<string::const_iterator, 4, 8, string::const_iterator::value_type> > string_from_binary;
+                           transform_width<string::const_iterator, 4, 8, string::const_iterator::value_type>>
+  string_from_binary;
 
 
-template<class CharType>
+template <class CharType>
 struct hex_to_4_bit
 {
   typedef CharType result_type;
-  CharType operator () (CharType ch) const
+  CharType
+  operator()(CharType ch) const
   {
-    const signed char lookup_table [] = {
-      -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-      -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-      -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-      0, 1, 2, 3, 4, 5, 6, 7, 8, 9,-1,-1,-1,-1,-1,-1,
-      -1,10,11,12,13,14,15,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-      -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-      -1,10,11,12,13,14,15,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-      -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
-    };
+    const signed char lookup_table[] = {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+                                        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+                                        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+                                        -1, -1, -1, 0,  1,  2,  3,  4,  5,  6,  7,  8,  9,  -1, -1,
+                                        -1, -1, -1, -1, -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1,
+                                        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+                                        -1, -1, -1, -1, -1, -1, -1, 10, 11, 12, 13, 14, 15, -1, -1,
+                                        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+                                        -1, -1, -1, -1, -1, -1, -1, -1};
 
     // cout << "New character: " << hex << (int) ch << " (" << (char) ch << ")" << "\n";
     signed char value = -1;
     if ((unsigned)ch < 128)
-      value = lookup_table [(unsigned)ch];
+      value = lookup_table[(unsigned)ch];
     if (value == -1)
-      BOOST_THROW_EXCEPTION (Error::HashConversion () << errmsg_info_int ((int)ch));
+      BOOST_THROW_EXCEPTION(Error::HashConversion() << errmsg_info_int((int)ch));
 
     return value;
   }
 };
 
-typedef transform_width<transform_iterator<hex_to_4_bit<string::const_iterator::value_type>, string::const_iterator>, 8, 4> string_to_binary;
+typedef transform_width<
+  transform_iterator<hex_to_4_bit<string::const_iterator::value_type>, string::const_iterator>,
+  8,
+  4>
+  string_to_binary;
 
 
-std::ostream &
-operator << (std::ostream &os, const Hash &hash)
+std::ostream&
+operator<<(std::ostream& os, const Hash& hash)
 {
   if (hash.m_length == 0)
     return os;
 
-  ostreambuf_iterator<char> out_it (os); // ostream iterator
+  ostreambuf_iterator<char> out_it(os); // ostream iterator
   // need to encode to base64
-  copy (string_from_binary (reinterpret_cast<const char*> (hash.m_buf)),
-        string_from_binary (reinterpret_cast<const char*> (hash.m_buf+hash.m_length)),
-        out_it);
+  copy(string_from_binary(reinterpret_cast<const char*>(hash.m_buf)),
+       string_from_binary(reinterpret_cast<const char*>(hash.m_buf + hash.m_length)),
+       out_it);
 
   return os;
 }
 
 std::string
-Hash::shortHash () const
+Hash::shortHash() const
 {
-  return lexical_cast<string> (*this).substr (0, 10);
+  return lexical_cast<string>(*this).substr(0, 10);
 }
 
 
 unsigned char Hash::_origin = 0;
-HashPtr Hash::Origin(new Hash(&Hash::_origin, sizeof(unsigned char)));
+HashPtr
+Hash::Origin(new Hash(&Hash::_origin, sizeof(unsigned char)));
 
 HashPtr
-Hash::FromString (const std::string &hashInTextEncoding)
+Hash::FromString(const std::string& hashInTextEncoding)
 {
-  HashPtr retval = make_shared<Hash> (reinterpret_cast<void*> (0), 0);
+  HashPtr retval = make_shared<Hash>(reinterpret_cast<void*>(0), 0);
 
-  if (hashInTextEncoding.size () == 0)
-    {
-      return retval;
-    }
+  if (hashInTextEncoding.size() == 0) {
+    return retval;
+  }
 
-  if (hashInTextEncoding.size () > EVP_MAX_MD_SIZE * 2)
-    {
-      cerr << "Input hash is too long. Returning an empty hash" << endl;
-      return retval;
-    }
+  if (hashInTextEncoding.size() > EVP_MAX_MD_SIZE * 2) {
+    cerr << "Input hash is too long. Returning an empty hash" << endl;
+    return retval;
+  }
 
-  retval->m_buf = new unsigned char [EVP_MAX_MD_SIZE];
+  retval->m_buf = new unsigned char[EVP_MAX_MD_SIZE];
 
-  unsigned char *end = copy (string_to_binary (hashInTextEncoding.begin ()),
-                            string_to_binary (hashInTextEncoding.end ()),
+  unsigned char* end = copy(string_to_binary(hashInTextEncoding.begin()),
+                            string_to_binary(hashInTextEncoding.end()),
                             retval->m_buf);
 
   retval->m_length = end - retval->m_buf;
@@ -141,50 +146,47 @@
 }
 
 HashPtr
-Hash::FromFileContent (const fs::path &filename)
+Hash::FromFileContent(const fs::path& filename)
 {
-  HashPtr retval = make_shared<Hash> (reinterpret_cast<void*> (0), 0);
-  retval->m_buf = new unsigned char [EVP_MAX_MD_SIZE];
+  HashPtr retval = make_shared<Hash>(reinterpret_cast<void*>(0), 0);
+  retval->m_buf = new unsigned char[EVP_MAX_MD_SIZE];
 
-  EVP_MD_CTX *hash_context = EVP_MD_CTX_create ();
-  EVP_DigestInit_ex (hash_context, HASH_FUNCTION (), 0);
+  EVP_MD_CTX* hash_context = EVP_MD_CTX_create();
+  EVP_DigestInit_ex(hash_context, HASH_FUNCTION(), 0);
 
-  fs::ifstream iff (filename, std::ios::in | std::ios::binary);
-  while (iff.good ())
-    {
-      char buf[1024];
-      iff.read (buf, 1024);
-      EVP_DigestUpdate (hash_context, buf, iff.gcount ());
-    }
+  fs::ifstream iff(filename, std::ios::in | std::ios::binary);
+  while (iff.good()) {
+    char buf[1024];
+    iff.read(buf, 1024);
+    EVP_DigestUpdate(hash_context, buf, iff.gcount());
+  }
 
-  retval->m_buf = new unsigned char [EVP_MAX_MD_SIZE];
+  retval->m_buf = new unsigned char[EVP_MAX_MD_SIZE];
 
-  EVP_DigestFinal_ex (hash_context,
-                      retval->m_buf, &retval->m_length);
+  EVP_DigestFinal_ex(hash_context, retval->m_buf, &retval->m_length);
 
-  EVP_MD_CTX_destroy (hash_context);
+  EVP_MD_CTX_destroy(hash_context);
 
   return retval;
 }
 
 HashPtr
-Hash::FromBytes (const Ndnx::Bytes &bytes)
+Hash::FromBytes(const Ccnx::Bytes& bytes)
 {
-  HashPtr retval = make_shared<Hash> (reinterpret_cast<void*> (0), 0);
-  retval->m_buf = new unsigned char [EVP_MAX_MD_SIZE];
+  HashPtr retval = make_shared<Hash>(reinterpret_cast<void*>(0), 0);
+  retval->m_buf = new unsigned char[EVP_MAX_MD_SIZE];
 
-  EVP_MD_CTX *hash_context = EVP_MD_CTX_create ();
-  EVP_DigestInit_ex (hash_context, HASH_FUNCTION (), 0);
+  EVP_MD_CTX* hash_context = EVP_MD_CTX_create();
+  EVP_DigestInit_ex(hash_context, HASH_FUNCTION(), 0);
 
   // not sure whether it's bad to do so if bytes.size is huge
   EVP_DigestUpdate(hash_context, Ndnx::head(bytes), bytes.size());
 
-  retval->m_buf = new unsigned char [EVP_MAX_MD_SIZE];
+  retval->m_buf = new unsigned char[EVP_MAX_MD_SIZE];
 
-  EVP_DigestFinal_ex (hash_context,
-                      retval->m_buf, &retval->m_length);
+  EVP_DigestFinal_ex(hash_context, retval->m_buf, &retval->m_length);
 
-  EVP_MD_CTX_destroy (hash_context);
+  EVP_MD_CTX_destroy(hash_context);
 
   return retval;
 }