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IPLD ♦ alice-words

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href="/design/tricky-choices/string-domain/">string-domain</a></li></ul></li> <li> <a href="/design/open-research/">Open Research</a><ul> <li> <a href="/design/open-research/ADL-autoexecution/">ADL autoexecution</a></li></ul></li></ul></li> <li> <a href="/tools/">Tools</a></li> <li> <a href="/glossary/">Glossary</a></li> <li> <a href="/media/">Media</a></li> <li> <a href="/FAQ/">FAQ</a></li></ul> </nav> </aside> <main> <div class=content> <h1>alice-words</h1> <p>This fixture builds a HAMT cataloging the locations of all words appearing in the first chapter of <a href="https://www.gutenberg.org/files/11/11-h/11-h.htm">Lewis Carroll's Alice in Wonderland</a>.</p> <ul> <li>The reference text is available in <a href="./words.txt">words.txt</a>.</li> <li>Words are matched using a simple <code>/\w+/</code> regular expression.</li> <li>The HAMT uses a <code>bitWidth</code> of <code>5</code> (maximum of 32 entries or buckets per node) and a <code>bucketSize</code> of <code>3</code>.</li> <li>Blocks are encoded using DAG-CBOR and CIDs use a SHA2-256 multihash.</li> <li>Each entry is keyed by the word (as <code>Bytes</code> as per the <a href="../../spec/">HAMT spec</a>) and the values are stored inline.</li> <li>Values are an array of the line and column location of each occurrence of the word, in order of appearance.</li> <li>Values take the following form:</li> </ul> <pre class="language-ipldsch"><code class="language-ipldsch"><span class="token typedef"><span class="token keyword">type</span> <span class="token class-name">Value</span></span> <span class="token punctuation">[</span>Datum<span class="token punctuation">]</span> <span class="token typedef"><span class="token keyword">type</span> <span class="token class-name">Datum</span></span> <span class="token builtin">struct</span> <span class="token punctuation">{</span> line Int column Int <span class="token punctuation">}</span></code></pre> <p>Once compiled:</p> <ul> <li>The root CID of such a HAMT should be <code>bafyreic672jz6huur4c2yekd3uycswe2xfqhjlmtmm5dorb6yoytgflova</code>. This root is listed as the root of the CAR containing the blocks.</li> <li>There will be 36 blocks: 1 root and 25 non-roots, matching the schema in the HAMT spec.</li> </ul> <p>Files:</p> <ul> <li><a href="./hamt.car">hamt.car</a> - CAR containing 36 blocks</li> <li><a href="./hamt.json">hamt.json</a> - A sorted JSON representation of the data contained in the HAMT, with a mapping of word to locations in the text.</li> <li><a href="./words.txt">words.txt</a> - The source text used to generate the data.</li> </ul> </div> </main> </body> </html>

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