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      <dt style="clear: both; float: left; font-weight: bold; width: 8em">Author</dt>
      <dd style="margin-left: 8.5em">YUKI Hiroshi &lt;shimo****@clear*****&gt;</dd>
      <dt style="clear: both; float: left; font-weight: bold; width: 8em">Date</dt>
      <dd style="margin-left: 8.5em">2015-04-21 21:47:50 +0900 (Tue, 21 Apr 2015)</dd>
      <dt style="clear: both; float: left; font-weight: bold; width: 8em">New Revision</dt>
      <dd style="margin-left: 8.5em"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f">34ce5004bf7086c4265a74d9d64227238ab8aa6f</a></dd>
      <dt style="clear: both; float: left; font-weight: bold; width: 8em">Message</dt>
      <dd style="margin-left: 8.5em"><pre style="border: 1px solid #aaa; font-family: Consolas, Menlo, &quot;Liberation Mono&quot;, Courier, monospace; line-height: 1.2; padding: 0.5em; width: auto">Sum all values if both values are hashes and there are only numeric values.

ex.:
  x = { a: 0, b: 1, c: 2 }
  y = { a: 1, b: 2, c: 3, d: 4 }
   =&gt; { a: 1, b: 3, c: 5, d: 4 }</pre></dd>
      <dt style="clear: both; float: left; font-weight: bold; width: 8em">Modified files</dt>
      <dd style="margin-left: 8.5em">
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          <li><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#diff-0">lib/droonga/reducer.rb</a></li>
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<pre style="border: 0; font-family: Consolas, Menlo, &quot;Liberation Mono&quot;, Courier, monospace; line-height: 1.2; margin: 0; padding: 0.5em; white-space: normal; width: auto"><span class="diff-header" style="background-color: #eaf2f5; color: #999999; display: block; white-space: pre">  Modified: lib/droonga/reducer.rb (+33 -1)</span>
<span class="diff-header-mark" style="background-color: #eaf2f5; color: #999999; display: block; white-space: pre">===================================================================</span>
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<pre style="border: 0; font-family: Consolas, Menlo, &quot;Liberation Mono&quot;, Courier, monospace; line-height: 1.2; margin: 0; padding: 0.5em; white-space: normal; width: auto"><span class="diff-line-number-hunk-header" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0L76">...</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0L77">77</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0L78">78</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0L79">79</a></span>
<span class="diff-line-number-deleted" style="background-color: #ffaaaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0L80">80</a></span>
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<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0L81">81</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0L82">82</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0L83">83</a></span>
<span class="diff-line-number-hunk-header" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0L164">...</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0L165">165</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0L166">166</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0L167">167</a></span>
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<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0L168">168</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0L169">169</a></span>
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<pre style="border: 0; font-family: Consolas, Menlo, &quot;Liberation Mono&quot;, Courier, monospace; line-height: 1.2; margin: 0; padding: 0.5em; white-space: normal; width: auto"><span class="diff-line-number-hunk-header" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R76">...</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R77">77</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R78">78</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R79">79</a></span>
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<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R80">80</a></span>
<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R81">81</a></span>
<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R82">82</a></span>
<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R83">83</a></span>
<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R84">84</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R85">85</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R86">86</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R87">87</a></span>
<span class="diff-line-number-hunk-header" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R168">...</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R169">169</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R170">170</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R171">171</a></span>
<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R172">172</a></span>
<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R173">173</a></span>
<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R174">174</a></span>
<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R175">175</a></span>
<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R176">176</a></span>
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<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R178">178</a></span>
<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R179">179</a></span>
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<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R182">182</a></span>
<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R183">183</a></span>
<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R184">184</a></span>
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<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R187">187</a></span>
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<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R192">192</a></span>
<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R193">193</a></span>
<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R194">194</a></span>
<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R195">195</a></span>
<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R196">196</a></span>
<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R197">197</a></span>
<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R198">198</a></span>
<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R199">199</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R200">200</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/droonga/droonga-engine/commit/34ce5004bf7086c4265a74d9d64227238ab8aa6f#L0R201">201</a></span>
</pre>
            </th>
            <td class="diff-content" style="border: 1px solid #aaa">
<pre style="border: 0; font-family: Consolas, Menlo, &quot;Liberation Mono&quot;, Courier, monospace; line-height: 1.2; margin: 0; padding: 0.5em; white-space: normal; width: auto"><span class="diff-hunk-header" style="background-color: #eaf2f5; color: #999999; display: block; white-space: pre">@@ -77,7 +77,11 @@ <span class="diff-context" style="background-color: #ffffaa; color: #000000">module Droonga</span></span>
<span class="diff-not-changed" style="display: block; white-space: pre">       return x || y if x.nil? or y.nil?</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> </span>
<span class="diff-not-changed" style="display: block; white-space: pre">       if x.is_a?(Hash) and y.is_a?(Hash)</span>
<span class="diff-deleted" style="background-color: #ffaaaa; color: #000000; display: block; white-space: pre">-        x.merge(y)</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+        if number_hash?(x) and number_hash?(y)</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+          sum_number_hashes(x, y)</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+        else</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+          x.merge(y)</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+        end</span>
<span class="diff-not-changed" style="display: block; white-space: pre">       else</span>
<span class="diff-not-changed" style="display: block; white-space: pre">         x + y</span>
<span class="diff-not-changed" style="display: block; white-space: pre">       end</span>
<span class="diff-hunk-header" style="background-color: #eaf2f5; color: #999999; display: block; white-space: pre">@@ -165,5 +169,33 @@ <span class="diff-context" style="background-color: #ffffaa; color: #000000">module Droonga</span></span>
<span class="diff-not-changed" style="display: block; white-space: pre">         end</span>
<span class="diff-not-changed" style="display: block; white-space: pre">       end</span>
<span class="diff-not-changed" style="display: block; white-space: pre">     end</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+    def number_hash?(hash)</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+      return false unless hash.is_a?(Hash)</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+      hash.values.all? do |value|</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+        case value</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+        when Numeric</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+          true</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+        when Hash</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+          number_hash?(value)</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+        else</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+          false</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+        end</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+      end</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+    end</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+    def sum_number_hashes(x, y)</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+      sum = {}</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+      (x.keys + y.keys).each do |key|</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+        x_value = x[key]</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+        y_value = y[key]</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+        if number_hash?(x_value) and number_hash?(y_value)</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+          sum[key] = sum_number_hashes(x_value, y_value)</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+        else</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+          sum[key] = (x_value || 0) + (y_value || 0)</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+        end</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+      end</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+      sum</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+    end</span>
<span class="diff-not-changed" style="display: block; white-space: pre">   end</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> end</span>
</pre>
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