Update documentationgh-pages

author: 2015-06-29 20:16:15 +0000
committer: 2015-06-29 20:16:15 +0000
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tree: 8c64d6e8be006486d975a651505fbbde61365cd6 /src/aho_corasick
download: irsc-gh-pages.tar.gz
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+    <section id='main' class="content source"><pre class="line-numbers"><span id="1">  1</span>
+<span id="2">  2</span>
+<span id="3">  3</span>
+<span id="4">  4</span>
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+<span id="322">322</span>
+<span id="323">323</span>
+<span id="324">324</span>
+<span id="325">325</span>
+</pre><pre class='rust '>
+<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>io</span>::{<span class='self'>self</span>, <span class='ident'>BufRead</span>, <span class='ident'>Read</span>};
+
+<span class='kw'>use</span> <span class='ident'>super</span>::{<span class='ident'>ROOT_STATE</span>, <span class='ident'>PatIdx</span>, <span class='ident'>StateIdx</span>};
+
+<span class='doccomment'>/// An abstraction over automatons and their corresponding iterators.</span>
+<span class='kw'>pub</span> <span class='kw'>trait</span> <span class='ident'>Automaton</span>: <span class='ident'>Sized</span> {
+    <span class='doccomment'>/// Return the next state given the current state and next character.</span>
+    <span class='kw'>fn</span> <span class='ident'>next_state</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>si</span>: <span class='ident'>StateIdx</span>, <span class='ident'>b</span>: <span class='ident'>u8</span>) <span class='op'>-&gt;</span> <span class='ident'>StateIdx</span>;
+
+    <span class='doccomment'>/// Return true if and only if the given state and current pattern index</span>
+    <span class='doccomment'>/// indicate a match.</span>
+    <span class='kw'>fn</span> <span class='ident'>has_match</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>si</span>: <span class='ident'>StateIdx</span>, <span class='ident'>outi</span>: <span class='ident'>PatIdx</span>) <span class='op'>-&gt;</span> <span class='ident'>bool</span>;
+
+    <span class='doccomment'>/// Build a match given the current state, pattern index and input index.</span>
+    <span class='kw'>fn</span> <span class='ident'>get_match</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>si</span>: <span class='ident'>StateIdx</span>, <span class='ident'>outi</span>: <span class='ident'>PatIdx</span>, <span class='ident'>texti</span>: <span class='ident'>usize</span>) <span class='op'>-&gt;</span> <span class='ident'>Match</span>;
+
+    <span class='doccomment'>/// Attempt to skip through the input.</span>
+    <span class='doccomment'>///</span>
+    <span class='doccomment'>/// This returns the index into `text` at which the next match attempt</span>
+    <span class='doccomment'>/// should start. (If no skipping occurred, then the return value should</span>
+    <span class='doccomment'>/// be equal to `at`.)</span>
+    <span class='doccomment'>///</span>
+    <span class='doccomment'>/// Finally, if no match is possible, then return `text.len()`.</span>
+    <span class='kw'>fn</span> <span class='ident'>skip_to</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>si</span>: <span class='ident'>StateIdx</span>, <span class='ident'>text</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>at</span>: <span class='ident'>usize</span>) <span class='op'>-&gt;</span> <span class='ident'>usize</span>;
+
+    <span class='doccomment'>/// Returns true if and only if this automaton can skip through the input.</span>
+    <span class='kw'>fn</span> <span class='ident'>is_skippable</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>bool</span>;
+
+    <span class='doccomment'>/// Returns all of the patterns matched by this automaton.</span>
+    <span class='doccomment'>///</span>
+    <span class='doccomment'>/// The order of the patterns is the order in which they were added.</span>
+    <span class='kw'>fn</span> <span class='ident'>patterns</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='kw-2'>&amp;</span>[<span class='ident'>String</span>];
+
+    <span class='doccomment'>/// Returns the pattern indexed at `i`.</span>
+    <span class='doccomment'>///</span>
+    <span class='doccomment'>/// The index corresponds to the position at which the pattern was added</span>
+    <span class='doccomment'>/// to the automaton, starting at `0`.</span>
+    <span class='kw'>fn</span> <span class='ident'>pattern</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>i</span>: <span class='ident'>usize</span>) <span class='op'>-&gt;</span> <span class='kw-2'>&amp;</span><span class='ident'>str</span>;
+
+    <span class='doccomment'>/// Return the number of patterns in the automaton.</span>
+    <span class='attribute'>#[<span class='ident'>inline</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>len</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>usize</span> {
+        <span class='self'>self</span>.<span class='ident'>patterns</span>().<span class='ident'>len</span>()
+    }
+
+    <span class='doccomment'>/// Returns true if the automaton has no patterns.</span>
+    <span class='attribute'>#[<span class='ident'>inline</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>is_empty</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>bool</span> {
+        <span class='self'>self</span>.<span class='ident'>len</span>() <span class='op'>==</span> <span class='number'>0</span>
+    }
+
+    <span class='doccomment'>/// Returns an iterator of non-overlapping matches in `s`.</span>
+    <span class='kw'>fn</span> <span class='ident'>find</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>, <span class='lifetime'>&#39;s</span><span class='op'>&gt;</span>(
+        <span class='kw-2'>&amp;</span><span class='lifetime'>&#39;a</span> <span class='self'>self</span>,
+        <span class='ident'>s</span>: <span class='kw-2'>&amp;</span><span class='lifetime'>&#39;s</span> <span class='ident'>str</span>,
+    ) <span class='op'>-&gt;</span> <span class='ident'>Matches</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>, <span class='lifetime'>&#39;s</span>, <span class='kw'>Self</span><span class='op'>&gt;</span> {
+        <span class='ident'>Matches</span> {
+            <span class='ident'>aut</span>: <span class='self'>self</span>,
+            <span class='ident'>text</span>: <span class='ident'>s</span>.<span class='ident'>as_bytes</span>(),
+            <span class='ident'>texti</span>: <span class='number'>0</span>,
+            <span class='ident'>si</span>: <span class='ident'>ROOT_STATE</span>,
+        }
+    }
+
+    <span class='doccomment'>/// Returns an iterator of overlapping matches in `s`.</span>
+    <span class='kw'>fn</span> <span class='ident'>find_overlapping</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>, <span class='lifetime'>&#39;s</span><span class='op'>&gt;</span>(
+        <span class='kw-2'>&amp;</span><span class='lifetime'>&#39;a</span> <span class='self'>self</span>,
+        <span class='ident'>s</span>: <span class='kw-2'>&amp;</span><span class='lifetime'>&#39;s</span> <span class='ident'>str</span>,
+    ) <span class='op'>-&gt;</span> <span class='ident'>MatchesOverlapping</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>, <span class='lifetime'>&#39;s</span>, <span class='kw'>Self</span><span class='op'>&gt;</span> {
+        <span class='ident'>MatchesOverlapping</span> {
+            <span class='ident'>aut</span>: <span class='self'>self</span>,
+            <span class='ident'>text</span>: <span class='ident'>s</span>.<span class='ident'>as_bytes</span>(),
+            <span class='ident'>texti</span>: <span class='number'>0</span>,
+            <span class='ident'>si</span>: <span class='ident'>ROOT_STATE</span>,
+            <span class='ident'>outi</span>: <span class='number'>0</span>,
+        }
+    }
+
+    <span class='doccomment'>/// Returns an iterator of non-overlapping matches in the given reader.</span>
+    <span class='kw'>fn</span> <span class='ident'>stream_find</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>, <span class='ident'>R</span>: <span class='ident'>io</span>::<span class='ident'>Read</span><span class='op'>&gt;</span>(
+        <span class='kw-2'>&amp;</span><span class='lifetime'>&#39;a</span> <span class='self'>self</span>,
+        <span class='ident'>rdr</span>: <span class='ident'>R</span>,
+    ) <span class='op'>-&gt;</span> <span class='ident'>StreamMatches</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>, <span class='ident'>R</span>, <span class='kw'>Self</span><span class='op'>&gt;</span> {
+        <span class='ident'>StreamMatches</span> {
+            <span class='ident'>aut</span>: <span class='self'>self</span>,
+            <span class='ident'>buf</span>: <span class='ident'>io</span>::<span class='ident'>BufReader</span>::<span class='ident'>new</span>(<span class='ident'>rdr</span>),
+            <span class='ident'>texti</span>: <span class='number'>0</span>,
+            <span class='ident'>si</span>: <span class='ident'>ROOT_STATE</span>,
+        }
+    }
+
+    <span class='doccomment'>/// Returns an iterator of overlapping matches in the given reader.</span>
+    <span class='kw'>fn</span> <span class='ident'>stream_find_overlapping</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>, <span class='ident'>R</span>: <span class='ident'>io</span>::<span class='ident'>Read</span><span class='op'>&gt;</span>(
+        <span class='kw-2'>&amp;</span><span class='lifetime'>&#39;a</span> <span class='self'>self</span>,
+        <span class='ident'>rdr</span>: <span class='ident'>R</span>,
+    ) <span class='op'>-&gt;</span> <span class='ident'>StreamMatchesOverlapping</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>, <span class='ident'>R</span>, <span class='kw'>Self</span><span class='op'>&gt;</span> {
+        <span class='ident'>StreamMatchesOverlapping</span> {
+            <span class='ident'>aut</span>: <span class='self'>self</span>,
+            <span class='ident'>buf</span>: <span class='ident'>io</span>::<span class='ident'>BufReader</span>::<span class='ident'>new</span>(<span class='ident'>rdr</span>),
+            <span class='ident'>texti</span>: <span class='number'>0</span>,
+            <span class='ident'>si</span>: <span class='ident'>ROOT_STATE</span>,
+            <span class='ident'>outi</span>: <span class='number'>0</span>,
+        }
+    }
+}
+
+<span class='doccomment'>/// Records a match in the search text.</span>
+<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Copy</span>, <span class='ident'>Clone</span>, <span class='ident'>Debug</span>, <span class='ident'>Hash</span>, <span class='ident'>PartialEq</span>, <span class='ident'>Eq</span>)]</span>
+<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>Match</span> {
+    <span class='doccomment'>/// The pattern index.</span>
+    <span class='doccomment'>///</span>
+    <span class='doccomment'>/// This corresponds to the ordering in which the matched pattern was</span>
+    <span class='doccomment'>/// added to the automaton, starting at `0`.</span>
+    <span class='kw'>pub</span> <span class='ident'>pati</span>: <span class='ident'>usize</span>,
+    <span class='doccomment'>/// The starting byte offset of the match in the search text.</span>
+    <span class='kw'>pub</span> <span class='ident'>start</span>: <span class='ident'>usize</span>,
+    <span class='doccomment'>/// The ending byte offset of the match in the search text.</span>
+    <span class='doccomment'>///</span>
+    <span class='doccomment'>/// (This can be re-captiulated with `pati` and adding the pattern&#39;s</span>
+    <span class='doccomment'>/// length to `start`, but it is convenient to have it here.)</span>
+    <span class='kw'>pub</span> <span class='ident'>end</span>: <span class='ident'>usize</span>,
+}
+
+<span class='doccomment'>/// An iterator of non-overlapping matches for in-memory text.</span>
+<span class='doccomment'>///</span>
+<span class='doccomment'>/// This iterator yields `Match` values.</span>
+<span class='doccomment'>///</span>
+<span class='doccomment'>/// `&#39;a` is the lifetime of the automaton and `&#39;s` is the lifetime of the</span>
+<span class='doccomment'>/// search text.</span>
+<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Debug</span>)]</span>
+<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>Matches</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>, <span class='lifetime'>&#39;s</span>, <span class='ident'>A</span>: <span class='lifetime'>&#39;a</span> <span class='op'>+</span> <span class='ident'>Automaton</span><span class='op'>&gt;</span> {
+    <span class='ident'>aut</span>: <span class='kw-2'>&amp;</span><span class='lifetime'>&#39;a</span> <span class='ident'>A</span>,
+    <span class='ident'>text</span>: <span class='kw-2'>&amp;</span><span class='lifetime'>&#39;s</span> [<span class='ident'>u8</span>],
+    <span class='ident'>texti</span>: <span class='ident'>usize</span>,
+    <span class='ident'>si</span>: <span class='ident'>StateIdx</span>,
+}
+
+<span class='kw'>impl</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>, <span class='lifetime'>&#39;s</span>, <span class='ident'>A</span>: <span class='ident'>Automaton</span><span class='op'>&gt;</span> <span class='ident'>Iterator</span> <span class='kw'>for</span> <span class='ident'>Matches</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>, <span class='lifetime'>&#39;s</span>, <span class='ident'>A</span><span class='op'>&gt;</span> {
+    <span class='kw'>type</span> <span class='ident'>Item</span> <span class='op'>=</span> <span class='ident'>Match</span>;
+
+    <span class='kw'>fn</span> <span class='ident'>next</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Option</span><span class='op'>&lt;</span><span class='ident'>Match</span><span class='op'>&gt;</span> {
+        <span class='comment'>// When there&#39;s an initial lone start byte, it is usually worth it</span>
+        <span class='comment'>// to use `memchr` to skip along the input. The problem is that</span>
+        <span class='comment'>// the skipping function is called in the inner match loop, which</span>
+        <span class='comment'>// can be quite costly if the skipping condition is never met.</span>
+        <span class='comment'>// Therefore, we lift the case analysis outside of the main loop at</span>
+        <span class='comment'>// the cost of repeating code.</span>
+        <span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>is_skippable</span>() {
+            <span class='self'>self</span>.<span class='ident'>texti</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>skip_to</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='self'>self</span>.<span class='ident'>text</span>, <span class='self'>self</span>.<span class='ident'>texti</span>);
+            <span class='kw'>while</span> <span class='self'>self</span>.<span class='ident'>texti</span> <span class='op'>&lt;</span> <span class='self'>self</span>.<span class='ident'>text</span>.<span class='ident'>len</span>() {
+                <span class='self'>self</span>.<span class='ident'>si</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>next_state</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='self'>self</span>.<span class='ident'>text</span>[<span class='self'>self</span>.<span class='ident'>texti</span>]);
+                <span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>has_match</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='number'>0</span>) {
+                    <span class='kw'>let</span> <span class='ident'>m</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>get_match</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='number'>0</span>, <span class='self'>self</span>.<span class='ident'>texti</span>);
+                    <span class='self'>self</span>.<span class='ident'>si</span> <span class='op'>=</span> <span class='ident'>ROOT_STATE</span>;
+                    <span class='self'>self</span>.<span class='ident'>texti</span> <span class='op'>+=</span> <span class='number'>1</span>;
+                    <span class='kw'>return</span> <span class='prelude-val'>Some</span>(<span class='ident'>m</span>);
+                }
+                <span class='self'>self</span>.<span class='ident'>texti</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>skip_to</span>(
+                    <span class='self'>self</span>.<span class='ident'>si</span>, <span class='self'>self</span>.<span class='ident'>text</span>, <span class='self'>self</span>.<span class='ident'>texti</span> <span class='op'>+</span> <span class='number'>1</span>);
+            }
+        } <span class='kw'>else</span> {
+            <span class='kw'>while</span> <span class='self'>self</span>.<span class='ident'>texti</span> <span class='op'>&lt;</span> <span class='self'>self</span>.<span class='ident'>text</span>.<span class='ident'>len</span>() {
+                <span class='self'>self</span>.<span class='ident'>si</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>next_state</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='self'>self</span>.<span class='ident'>text</span>[<span class='self'>self</span>.<span class='ident'>texti</span>]);
+                <span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>has_match</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='number'>0</span>) {
+                    <span class='kw'>let</span> <span class='ident'>m</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>get_match</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='number'>0</span>, <span class='self'>self</span>.<span class='ident'>texti</span>);
+                    <span class='self'>self</span>.<span class='ident'>si</span> <span class='op'>=</span> <span class='ident'>ROOT_STATE</span>;
+                    <span class='self'>self</span>.<span class='ident'>texti</span> <span class='op'>+=</span> <span class='number'>1</span>;
+                    <span class='kw'>return</span> <span class='prelude-val'>Some</span>(<span class='ident'>m</span>);
+                }
+                <span class='self'>self</span>.<span class='ident'>texti</span> <span class='op'>+=</span> <span class='number'>1</span>;
+            }
+        }
+        <span class='prelude-val'>None</span>
+    }
+}
+
+<span class='doccomment'>/// An iterator of non-overlapping matches for streaming text.</span>
+<span class='doccomment'>///</span>
+<span class='doccomment'>/// This iterator yields `io::Result&lt;Match&gt;` values.</span>
+<span class='doccomment'>///</span>
+<span class='doccomment'>/// `&#39;a` is the lifetime of the automaton and `R` is the type of the underlying</span>
+<span class='doccomment'>/// `io::Read`er.</span>
+<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Debug</span>)]</span>
+<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>StreamMatches</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>, <span class='ident'>R</span>, <span class='ident'>A</span>: <span class='lifetime'>&#39;a</span> <span class='op'>+</span> <span class='ident'>Automaton</span><span class='op'>&gt;</span> {
+    <span class='ident'>aut</span>: <span class='kw-2'>&amp;</span><span class='lifetime'>&#39;a</span> <span class='ident'>A</span>,
+    <span class='ident'>buf</span>: <span class='ident'>io</span>::<span class='ident'>BufReader</span><span class='op'>&lt;</span><span class='ident'>R</span><span class='op'>&gt;</span>,
+    <span class='ident'>texti</span>: <span class='ident'>usize</span>,
+    <span class='ident'>si</span>: <span class='ident'>StateIdx</span>,
+}
+
+<span class='kw'>impl</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>, <span class='ident'>R</span>: <span class='ident'>io</span>::<span class='ident'>Read</span>, <span class='ident'>A</span>: <span class='ident'>Automaton</span><span class='op'>&gt;</span> <span class='ident'>Iterator</span> <span class='kw'>for</span> <span class='ident'>StreamMatches</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>, <span class='ident'>R</span>, <span class='ident'>A</span><span class='op'>&gt;</span> {
+    <span class='kw'>type</span> <span class='ident'>Item</span> <span class='op'>=</span> <span class='ident'>io</span>::<span class='prelude-ty'>Result</span><span class='op'>&lt;</span><span class='ident'>Match</span><span class='op'>&gt;</span>;
+
+    <span class='kw'>fn</span> <span class='ident'>next</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Option</span><span class='op'>&lt;</span><span class='ident'>io</span>::<span class='prelude-ty'>Result</span><span class='op'>&lt;</span><span class='ident'>Match</span><span class='op'>&gt;&gt;</span> {
+        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>m</span> <span class='op'>=</span> <span class='prelude-val'>None</span>;
+        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>consumed</span> <span class='op'>=</span> <span class='number'>0</span>;
+<span class='lifetime'>&#39;LOOP</span>:  <span class='kw'>loop</span> {
+            <span class='self'>self</span>.<span class='ident'>buf</span>.<span class='ident'>consume</span>(<span class='ident'>consumed</span>);
+            <span class='kw'>let</span> <span class='ident'>bs</span> <span class='op'>=</span> <span class='kw'>match</span> <span class='self'>self</span>.<span class='ident'>buf</span>.<span class='ident'>fill_buf</span>() {
+                <span class='prelude-val'>Err</span>(<span class='ident'>err</span>) <span class='op'>=&gt;</span> <span class='kw'>return</span> <span class='prelude-val'>Some</span>(<span class='prelude-val'>Err</span>(<span class='ident'>err</span>)),
+                <span class='prelude-val'>Ok</span>(<span class='ident'>bs</span>) <span class='kw'>if</span> <span class='ident'>bs</span>.<span class='ident'>len</span>() <span class='op'>==</span> <span class='number'>0</span> <span class='op'>=&gt;</span> <span class='kw'>break</span>,
+                <span class='prelude-val'>Ok</span>(<span class='ident'>bs</span>) <span class='op'>=&gt;</span> <span class='ident'>bs</span>,
+            };
+            <span class='ident'>consumed</span> <span class='op'>=</span> <span class='ident'>bs</span>.<span class='ident'>len</span>(); <span class='comment'>// is shortened if we find a match</span>
+            <span class='kw'>for</span> (<span class='ident'>i</span>, <span class='kw-2'>&amp;</span><span class='ident'>b</span>) <span class='kw'>in</span> <span class='ident'>bs</span>.<span class='ident'>iter</span>().<span class='ident'>enumerate</span>() {
+                <span class='self'>self</span>.<span class='ident'>si</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>next_state</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='ident'>b</span>);
+                <span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>has_match</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='number'>0</span>) {
+                    <span class='ident'>m</span> <span class='op'>=</span> <span class='prelude-val'>Some</span>(<span class='prelude-val'>Ok</span>(<span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>get_match</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='number'>0</span>, <span class='self'>self</span>.<span class='ident'>texti</span>)));
+                    <span class='ident'>consumed</span> <span class='op'>=</span> <span class='ident'>i</span> <span class='op'>+</span> <span class='number'>1</span>;
+                    <span class='self'>self</span>.<span class='ident'>texti</span> <span class='op'>+=</span> <span class='number'>1</span>;
+                    <span class='self'>self</span>.<span class='ident'>si</span> <span class='op'>=</span> <span class='ident'>ROOT_STATE</span>;
+                    <span class='kw'>break</span> <span class='lifetime'>&#39;LOOP</span>;
+                }
+                <span class='self'>self</span>.<span class='ident'>texti</span> <span class='op'>+=</span> <span class='number'>1</span>;
+            }
+        }
+        <span class='self'>self</span>.<span class='ident'>buf</span>.<span class='ident'>consume</span>(<span class='ident'>consumed</span>);
+        <span class='ident'>m</span>
+    }
+}
+
+<span class='doccomment'>/// An iterator of overlapping matches for in-memory text.</span>
+<span class='doccomment'>///</span>
+<span class='doccomment'>/// This iterator yields `Match` values.</span>
+<span class='doccomment'>///</span>
+<span class='doccomment'>/// `&#39;a` is the lifetime of the automaton and `&#39;s` is the lifetime of the</span>
+<span class='doccomment'>/// search text.</span>
+<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Debug</span>)]</span>
+<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>MatchesOverlapping</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>, <span class='lifetime'>&#39;s</span>, <span class='ident'>A</span>: <span class='lifetime'>&#39;a</span> <span class='op'>+</span> <span class='ident'>Automaton</span><span class='op'>&gt;</span> {
+    <span class='ident'>aut</span>: <span class='kw-2'>&amp;</span><span class='lifetime'>&#39;a</span> <span class='ident'>A</span>,
+    <span class='ident'>text</span>: <span class='kw-2'>&amp;</span><span class='lifetime'>&#39;s</span> [<span class='ident'>u8</span>],
+    <span class='ident'>texti</span>: <span class='ident'>usize</span>,
+    <span class='ident'>si</span>: <span class='ident'>StateIdx</span>,
+    <span class='ident'>outi</span>: <span class='ident'>usize</span>,
+}
+
+<span class='kw'>impl</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>, <span class='lifetime'>&#39;s</span>, <span class='ident'>A</span>: <span class='ident'>Automaton</span><span class='op'>&gt;</span> <span class='ident'>Iterator</span> <span class='kw'>for</span> <span class='ident'>MatchesOverlapping</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>, <span class='lifetime'>&#39;s</span>, <span class='ident'>A</span><span class='op'>&gt;</span> {
+    <span class='kw'>type</span> <span class='ident'>Item</span> <span class='op'>=</span> <span class='ident'>Match</span>;
+
+    <span class='kw'>fn</span> <span class='ident'>next</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Option</span><span class='op'>&lt;</span><span class='ident'>Match</span><span class='op'>&gt;</span> {
+        <span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>has_match</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='self'>self</span>.<span class='ident'>outi</span>) {
+            <span class='kw'>let</span> <span class='ident'>m</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>get_match</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='self'>self</span>.<span class='ident'>outi</span>, <span class='self'>self</span>.<span class='ident'>texti</span>);
+            <span class='self'>self</span>.<span class='ident'>outi</span> <span class='op'>+=</span> <span class='number'>1</span>;
+            <span class='kw'>if</span> <span class='op'>!</span><span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>has_match</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='self'>self</span>.<span class='ident'>outi</span>) {
+                <span class='self'>self</span>.<span class='ident'>texti</span> <span class='op'>+=</span> <span class='number'>1</span>;
+            }
+            <span class='kw'>return</span> <span class='prelude-val'>Some</span>(<span class='ident'>m</span>);
+        }
+
+        <span class='self'>self</span>.<span class='ident'>outi</span> <span class='op'>=</span> <span class='number'>0</span>;
+        <span class='self'>self</span>.<span class='ident'>texti</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>skip_to</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='self'>self</span>.<span class='ident'>text</span>, <span class='self'>self</span>.<span class='ident'>texti</span>);
+        <span class='kw'>while</span> <span class='self'>self</span>.<span class='ident'>texti</span> <span class='op'>&lt;</span> <span class='self'>self</span>.<span class='ident'>text</span>.<span class='ident'>len</span>() {
+            <span class='kw'>let</span> <span class='ident'>b</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>text</span>[<span class='self'>self</span>.<span class='ident'>texti</span>];
+            <span class='self'>self</span>.<span class='ident'>si</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>next_state</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='ident'>b</span>);
+            <span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>has_match</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='self'>self</span>.<span class='ident'>outi</span>) {
+                <span class='kw'>return</span> <span class='self'>self</span>.<span class='ident'>next</span>();
+            }
+            <span class='self'>self</span>.<span class='ident'>texti</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>skip_to</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='self'>self</span>.<span class='ident'>text</span>, <span class='self'>self</span>.<span class='ident'>texti</span> <span class='op'>+</span> <span class='number'>1</span>);
+        }
+        <span class='prelude-val'>None</span>
+    }
+}
+
+<span class='doccomment'>/// An iterator of overlapping matches for streaming text.</span>
+<span class='doccomment'>///</span>
+<span class='doccomment'>/// This iterator yields `io::Result&lt;Match&gt;` values.</span>
+<span class='doccomment'>///</span>
+<span class='doccomment'>/// `&#39;a` is the lifetime of the automaton and `R` is the type of the underlying</span>
+<span class='doccomment'>/// `io::Read`er.</span>
+<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Debug</span>)]</span>
+<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>StreamMatchesOverlapping</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>, <span class='ident'>R</span>, <span class='ident'>A</span>: <span class='lifetime'>&#39;a</span> <span class='op'>+</span> <span class='ident'>Automaton</span><span class='op'>&gt;</span> {
+    <span class='ident'>aut</span>: <span class='kw-2'>&amp;</span><span class='lifetime'>&#39;a</span> <span class='ident'>A</span>,
+    <span class='ident'>buf</span>: <span class='ident'>io</span>::<span class='ident'>BufReader</span><span class='op'>&lt;</span><span class='ident'>R</span><span class='op'>&gt;</span>,
+    <span class='ident'>texti</span>: <span class='ident'>usize</span>,
+    <span class='ident'>si</span>: <span class='ident'>StateIdx</span>,
+    <span class='ident'>outi</span>: <span class='ident'>usize</span>,
+}
+
+<span class='kw'>impl</span><span class='op'>&lt;</span>
+    <span class='lifetime'>&#39;a</span>,
+    <span class='ident'>R</span>: <span class='ident'>io</span>::<span class='ident'>Read</span>,
+    <span class='ident'>A</span>: <span class='ident'>Automaton</span>,
+<span class='op'>&gt;</span> <span class='ident'>Iterator</span> <span class='kw'>for</span> <span class='ident'>StreamMatchesOverlapping</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>, <span class='ident'>R</span>, <span class='ident'>A</span><span class='op'>&gt;</span> {
+    <span class='kw'>type</span> <span class='ident'>Item</span> <span class='op'>=</span> <span class='ident'>io</span>::<span class='prelude-ty'>Result</span><span class='op'>&lt;</span><span class='ident'>Match</span><span class='op'>&gt;</span>;
+
+    <span class='kw'>fn</span> <span class='ident'>next</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Option</span><span class='op'>&lt;</span><span class='ident'>io</span>::<span class='prelude-ty'>Result</span><span class='op'>&lt;</span><span class='ident'>Match</span><span class='op'>&gt;&gt;</span> {
+        <span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>has_match</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='self'>self</span>.<span class='ident'>outi</span>) {
+            <span class='kw'>let</span> <span class='ident'>m</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>get_match</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='self'>self</span>.<span class='ident'>outi</span>, <span class='self'>self</span>.<span class='ident'>texti</span>);
+            <span class='self'>self</span>.<span class='ident'>outi</span> <span class='op'>+=</span> <span class='number'>1</span>;
+            <span class='kw'>if</span> <span class='op'>!</span><span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>has_match</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='self'>self</span>.<span class='ident'>outi</span>) {
+                <span class='self'>self</span>.<span class='ident'>texti</span> <span class='op'>+=</span> <span class='number'>1</span>;
+            }
+            <span class='kw'>return</span> <span class='prelude-val'>Some</span>(<span class='prelude-val'>Ok</span>(<span class='ident'>m</span>));
+        }
+        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>m</span> <span class='op'>=</span> <span class='prelude-val'>None</span>;
+        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>consumed</span> <span class='op'>=</span> <span class='number'>0</span>;
+        <span class='self'>self</span>.<span class='ident'>outi</span> <span class='op'>=</span> <span class='number'>0</span>;
+<span class='lifetime'>&#39;LOOP</span>:  <span class='kw'>loop</span> {
+            <span class='self'>self</span>.<span class='ident'>buf</span>.<span class='ident'>consume</span>(<span class='ident'>consumed</span>);
+            <span class='kw'>let</span> <span class='ident'>bs</span> <span class='op'>=</span> <span class='kw'>match</span> <span class='self'>self</span>.<span class='ident'>buf</span>.<span class='ident'>fill_buf</span>() {
+                <span class='prelude-val'>Err</span>(<span class='ident'>err</span>) <span class='op'>=&gt;</span> <span class='kw'>return</span> <span class='prelude-val'>Some</span>(<span class='prelude-val'>Err</span>(<span class='ident'>err</span>)),
+                <span class='prelude-val'>Ok</span>(<span class='ident'>bs</span>) <span class='kw'>if</span> <span class='ident'>bs</span>.<span class='ident'>len</span>() <span class='op'>==</span> <span class='number'>0</span> <span class='op'>=&gt;</span> <span class='kw'>break</span>,
+                <span class='prelude-val'>Ok</span>(<span class='ident'>bs</span>) <span class='op'>=&gt;</span> <span class='ident'>bs</span>,
+            };
+            <span class='ident'>consumed</span> <span class='op'>=</span> <span class='ident'>bs</span>.<span class='ident'>len</span>(); <span class='comment'>// is shortened if we find a match</span>
+            <span class='kw'>for</span> (<span class='ident'>i</span>, <span class='kw-2'>&amp;</span><span class='ident'>b</span>) <span class='kw'>in</span> <span class='ident'>bs</span>.<span class='ident'>iter</span>().<span class='ident'>enumerate</span>() {
+                <span class='self'>self</span>.<span class='ident'>si</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>next_state</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='ident'>b</span>);
+                <span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>has_match</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='self'>self</span>.<span class='ident'>outi</span>) {
+                    <span class='ident'>m</span> <span class='op'>=</span> <span class='prelude-val'>Some</span>(<span class='prelude-val'>Ok</span>(<span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>get_match</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='self'>self</span>.<span class='ident'>outi</span>,
+                                                   <span class='self'>self</span>.<span class='ident'>texti</span>)));
+                    <span class='ident'>consumed</span> <span class='op'>=</span> <span class='ident'>i</span> <span class='op'>+</span> <span class='number'>1</span>;
+                    <span class='self'>self</span>.<span class='ident'>outi</span> <span class='op'>+=</span> <span class='number'>1</span>;
+                    <span class='kw'>if</span> <span class='op'>!</span><span class='self'>self</span>.<span class='ident'>aut</span>.<span class='ident'>has_match</span>(<span class='self'>self</span>.<span class='ident'>si</span>, <span class='self'>self</span>.<span class='ident'>outi</span>) {
+                        <span class='self'>self</span>.<span class='ident'>texti</span> <span class='op'>+=</span> <span class='number'>1</span>;
+                    }
+                    <span class='kw'>break</span> <span class='lifetime'>&#39;LOOP</span>;
+                }
+                <span class='self'>self</span>.<span class='ident'>texti</span> <span class='op'>+=</span> <span class='number'>1</span>;
+            }
+        }
+        <span class='self'>self</span>.<span class='ident'>buf</span>.<span class='ident'>consume</span>(<span class='ident'>consumed</span>);
+        <span class='ident'>m</span>
+    }
+}
+
+</pre>
+</section>
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+
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+            </p>
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+\ No newline at end of file
diff --git a/src/aho_corasick/full.rs.html b/src/aho_corasick/full.rs.html
new file mode 100644
index 0000000..f9f4f65
--- /dev/null
+++ b/src/aho_corasick/full.rs.html
@@ -0,0 +1,329 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
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+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
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+    <meta name="description" content="Source to the Rust file `/home/travis/.cargo/registry/src/github.com-0a35038f75765ae4/aho-corasick-0.2.1/src/full.rs`.">
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+    </nav>
+
+    <section id='main' class="content source"><pre class="line-numbers"><span id="1">  1</span>
+<span id="2">  2</span>
+<span id="3">  3</span>
+<span id="4">  4</span>
+<span id="5">  5</span>
+<span id="6">  6</span>
+<span id="7">  7</span>
+<span id="8">  8</span>
+<span id="9">  9</span>
+<span id="10"> 10</span>
+<span id="11"> 11</span>
+<span id="12"> 12</span>
+<span id="13"> 13</span>
+<span id="14"> 14</span>
+<span id="15"> 15</span>
+<span id="16"> 16</span>
+<span id="17"> 17</span>
+<span id="18"> 18</span>
+<span id="19"> 19</span>
+<span id="20"> 20</span>
+<span id="21"> 21</span>
+<span id="22"> 22</span>
+<span id="23"> 23</span>
+<span id="24"> 24</span>
+<span id="25"> 25</span>
+<span id="26"> 26</span>
+<span id="27"> 27</span>
+<span id="28"> 28</span>
+<span id="29"> 29</span>
+<span id="30"> 30</span>
+<span id="31"> 31</span>
+<span id="32"> 32</span>
+<span id="33"> 33</span>
+<span id="34"> 34</span>
+<span id="35"> 35</span>
+<span id="36"> 36</span>
+<span id="37"> 37</span>
+<span id="38"> 38</span>
+<span id="39"> 39</span>
+<span id="40"> 40</span>
+<span id="41"> 41</span>
+<span id="42"> 42</span>
+<span id="43"> 43</span>
+<span id="44"> 44</span>
+<span id="45"> 45</span>
+<span id="46"> 46</span>
+<span id="47"> 47</span>
+<span id="48"> 48</span>
+<span id="49"> 49</span>
+<span id="50"> 50</span>
+<span id="51"> 51</span>
+<span id="52"> 52</span>
+<span id="53"> 53</span>
+<span id="54"> 54</span>
+<span id="55"> 55</span>
+<span id="56"> 56</span>
+<span id="57"> 57</span>
+<span id="58"> 58</span>
+<span id="59"> 59</span>
+<span id="60"> 60</span>
+<span id="61"> 61</span>
+<span id="62"> 62</span>
+<span id="63"> 63</span>
+<span id="64"> 64</span>
+<span id="65"> 65</span>
+<span id="66"> 66</span>
+<span id="67"> 67</span>
+<span id="68"> 68</span>
+<span id="69"> 69</span>
+<span id="70"> 70</span>
+<span id="71"> 71</span>
+<span id="72"> 72</span>
+<span id="73"> 73</span>
+<span id="74"> 74</span>
+<span id="75"> 75</span>
+<span id="76"> 76</span>
+<span id="77"> 77</span>
+<span id="78"> 78</span>
+<span id="79"> 79</span>
+<span id="80"> 80</span>
+<span id="81"> 81</span>
+<span id="82"> 82</span>
+<span id="83"> 83</span>
+<span id="84"> 84</span>
+<span id="85"> 85</span>
+<span id="86"> 86</span>
+<span id="87"> 87</span>
+<span id="88"> 88</span>
+<span id="89"> 89</span>
+<span id="90"> 90</span>
+<span id="91"> 91</span>
+<span id="92"> 92</span>
+<span id="93"> 93</span>
+<span id="94"> 94</span>
+<span id="95"> 95</span>
+<span id="96"> 96</span>
+<span id="97"> 97</span>
+<span id="98"> 98</span>
+<span id="99"> 99</span>
+<span id="100">100</span>
+<span id="101">101</span>
+<span id="102">102</span>
+<span id="103">103</span>
+<span id="104">104</span>
+<span id="105">105</span>
+<span id="106">106</span>
+<span id="107">107</span>
+<span id="108">108</span>
+<span id="109">109</span>
+<span id="110">110</span>
+<span id="111">111</span>
+<span id="112">112</span>
+<span id="113">113</span>
+<span id="114">114</span>
+<span id="115">115</span>
+<span id="116">116</span>
+</pre><pre class='rust '>
+<span class='kw'>use</span> <span class='ident'>memchr</span>::<span class='ident'>memchr</span>;
+
+<span class='kw'>use</span> <span class='ident'>super</span>::{
+    <span class='ident'>FAIL_STATE</span>, <span class='ident'>ROOT_STATE</span>,
+    <span class='ident'>StateIdx</span>, <span class='ident'>PatIdx</span>,
+    <span class='ident'>AcAutomaton</span>, <span class='ident'>Transitions</span>, <span class='ident'>Match</span>,
+};
+<span class='kw'>use</span> <span class='ident'>super</span>::<span class='ident'>autiter</span>::<span class='ident'>Automaton</span>;
+
+<span class='doccomment'>/// A complete Aho-Corasick automaton.</span>
+<span class='doccomment'>///</span>
+<span class='doccomment'>/// This uses a single transition matrix that permits each input character</span>
+<span class='doccomment'>/// to move to the next state with a single lookup in the matrix.</span>
+<span class='doccomment'>///</span>
+<span class='doccomment'>/// This is as fast as it gets, but it is guaranteed to use a lot of memory.</span>
+<span class='doccomment'>/// Namely, it will use at least `4 * 256 * #states`, where the number of</span>
+<span class='doccomment'>/// states is capped at length of all patterns concatenated.</span>
+<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Clone</span>, <span class='ident'>Debug</span>)]</span>
+<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>FullAcAutomaton</span> {
+    <span class='ident'>pats</span>: <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>String</span><span class='op'>&gt;</span>,
+    <span class='comment'>// i * #states + si</span>
+    <span class='ident'>trans</span>: <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>StateIdx</span><span class='op'>&gt;</span>,  <span class='comment'>// row-major, where states are rows</span>
+    <span class='ident'>out</span>: <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>PatIdx</span><span class='op'>&gt;&gt;</span>, <span class='comment'>// indexed by StateIdx</span>
+    <span class='ident'>start_bytes</span>: <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span>,
+}
+
+<span class='kw'>impl</span> <span class='ident'>FullAcAutomaton</span> {
+    <span class='doccomment'>/// Build a new expanded Aho-Corasick automaton from an existing</span>
+    <span class='doccomment'>/// Aho-Corasick automaton.</span>
+    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>new</span><span class='op'>&lt;</span><span class='ident'>T</span>: <span class='ident'>Transitions</span><span class='op'>&gt;</span>(<span class='ident'>ac</span>: <span class='ident'>AcAutomaton</span><span class='op'>&lt;</span><span class='ident'>T</span><span class='op'>&gt;</span>) <span class='op'>-&gt;</span> <span class='ident'>FullAcAutomaton</span> {
+        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>fac</span> <span class='op'>=</span> <span class='ident'>FullAcAutomaton</span> {
+            <span class='ident'>pats</span>: <span class='macro'>vec</span><span class='macro'>!</span>[],
+            <span class='ident'>trans</span>: <span class='macro'>vec</span><span class='macro'>!</span>[<span class='ident'>FAIL_STATE</span>; <span class='number'>256</span> <span class='op'>*</span> <span class='ident'>ac</span>.<span class='ident'>states</span>.<span class='ident'>len</span>()],
+            <span class='ident'>out</span>: <span class='macro'>vec</span><span class='macro'>!</span>[<span class='macro'>vec</span><span class='macro'>!</span>[]; <span class='ident'>ac</span>.<span class='ident'>states</span>.<span class='ident'>len</span>()],
+            <span class='ident'>start_bytes</span>: <span class='macro'>vec</span><span class='macro'>!</span>[],
+        };
+        <span class='ident'>fac</span>.<span class='ident'>build_matrix</span>(<span class='kw-2'>&amp;</span><span class='ident'>ac</span>);
+        <span class='ident'>fac</span>.<span class='ident'>pats</span> <span class='op'>=</span> <span class='ident'>ac</span>.<span class='ident'>pats</span>;
+        <span class='ident'>fac</span>.<span class='ident'>start_bytes</span> <span class='op'>=</span> <span class='ident'>ac</span>.<span class='ident'>start_bytes</span>;
+        <span class='ident'>fac</span>
+    }
+
+    <span class='kw'>fn</span> <span class='ident'>set</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>si</span>: <span class='ident'>StateIdx</span>, <span class='ident'>i</span>: <span class='ident'>u8</span>, <span class='ident'>goto</span>: <span class='ident'>StateIdx</span>) {
+        <span class='kw'>let</span> <span class='ident'>ns</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>num_states</span>();
+        <span class='self'>self</span>.<span class='ident'>trans</span>[<span class='ident'>i</span> <span class='kw'>as</span> <span class='ident'>usize</span> <span class='op'>*</span> <span class='ident'>ns</span> <span class='op'>+</span> <span class='ident'>si</span> <span class='kw'>as</span> <span class='ident'>usize</span>] <span class='op'>=</span> <span class='ident'>goto</span>;
+    }
+
+    <span class='attribute'>#[<span class='ident'>inline</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>num_states</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>usize</span> {
+        <span class='self'>self</span>.<span class='ident'>out</span>.<span class='ident'>len</span>()
+    }
+}
+
+<span class='kw'>impl</span> <span class='ident'>Automaton</span> <span class='kw'>for</span> <span class='ident'>FullAcAutomaton</span> {
+    <span class='attribute'>#[<span class='ident'>inline</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>next_state</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>si</span>: <span class='ident'>StateIdx</span>, <span class='ident'>i</span>: <span class='ident'>u8</span>) <span class='op'>-&gt;</span> <span class='ident'>StateIdx</span> {
+        <span class='self'>self</span>.<span class='ident'>trans</span>[<span class='ident'>i</span> <span class='kw'>as</span> <span class='ident'>usize</span> <span class='op'>*</span> <span class='self'>self</span>.<span class='ident'>num_states</span>() <span class='op'>+</span> <span class='ident'>si</span> <span class='kw'>as</span> <span class='ident'>usize</span>]
+    }
+
+    <span class='attribute'>#[<span class='ident'>inline</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>get_match</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>si</span>: <span class='ident'>StateIdx</span>, <span class='ident'>outi</span>: <span class='ident'>usize</span>, <span class='ident'>texti</span>: <span class='ident'>usize</span>) <span class='op'>-&gt;</span> <span class='ident'>Match</span> {
+        <span class='kw'>let</span> <span class='ident'>pati</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>out</span>[<span class='ident'>si</span> <span class='kw'>as</span> <span class='ident'>usize</span>][<span class='ident'>outi</span>];
+        <span class='kw'>let</span> <span class='ident'>patlen</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>pats</span>[<span class='ident'>pati</span>].<span class='ident'>len</span>();
+        <span class='kw'>let</span> <span class='ident'>start</span> <span class='op'>=</span> <span class='ident'>texti</span> <span class='op'>+</span> <span class='number'>1</span> <span class='op'>-</span> <span class='ident'>patlen</span>;
+        <span class='ident'>Match</span> {
+            <span class='ident'>pati</span>: <span class='ident'>pati</span>,
+            <span class='ident'>start</span>: <span class='ident'>start</span>,
+            <span class='ident'>end</span>: <span class='ident'>start</span> <span class='op'>+</span> <span class='ident'>patlen</span>,
+        }
+    }
+
+    <span class='attribute'>#[<span class='ident'>inline</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>has_match</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>si</span>: <span class='ident'>StateIdx</span>, <span class='ident'>outi</span>: <span class='ident'>usize</span>) <span class='op'>-&gt;</span> <span class='ident'>bool</span> {
+        <span class='ident'>outi</span> <span class='op'>&lt;</span> <span class='self'>self</span>.<span class='ident'>out</span>[<span class='ident'>si</span> <span class='kw'>as</span> <span class='ident'>usize</span>].<span class='ident'>len</span>()
+    }
+
+    <span class='attribute'>#[<span class='ident'>inline</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>skip_to</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>si</span>: <span class='ident'>StateIdx</span>, <span class='ident'>text</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>at</span>: <span class='ident'>usize</span>) <span class='op'>-&gt;</span> <span class='ident'>usize</span> {
+        <span class='kw'>if</span> <span class='ident'>si</span> <span class='op'>!=</span> <span class='ident'>ROOT_STATE</span> <span class='op'>||</span> <span class='op'>!</span><span class='self'>self</span>.<span class='ident'>is_skippable</span>() {
+            <span class='kw'>return</span> <span class='ident'>at</span>;
+        }
+        <span class='kw'>let</span> <span class='ident'>b</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>start_bytes</span>[<span class='number'>0</span>];
+        <span class='kw'>match</span> <span class='ident'>memchr</span>(<span class='ident'>b</span>, <span class='kw-2'>&amp;</span><span class='ident'>text</span>[<span class='ident'>at</span>..]) {
+            <span class='prelude-val'>None</span> <span class='op'>=&gt;</span> <span class='ident'>text</span>.<span class='ident'>len</span>(),
+            <span class='prelude-val'>Some</span>(<span class='ident'>i</span>) <span class='op'>=&gt;</span> <span class='ident'>at</span> <span class='op'>+</span> <span class='ident'>i</span>,
+        }
+    }
+
+    <span class='attribute'>#[<span class='ident'>inline</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>is_skippable</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>bool</span> {
+        <span class='self'>self</span>.<span class='ident'>start_bytes</span>.<span class='ident'>len</span>() <span class='op'>==</span> <span class='number'>1</span>
+    }
+
+    <span class='attribute'>#[<span class='ident'>inline</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>patterns</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='kw-2'>&amp;</span>[<span class='ident'>String</span>] {
+        <span class='kw-2'>&amp;</span><span class='self'>self</span>.<span class='ident'>pats</span>
+    }
+
+    <span class='attribute'>#[<span class='ident'>inline</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>pattern</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>i</span>: <span class='ident'>usize</span>) <span class='op'>-&gt;</span> <span class='kw-2'>&amp;</span><span class='ident'>str</span> {
+        <span class='kw-2'>&amp;</span><span class='self'>self</span>.<span class='ident'>pats</span>[<span class='ident'>i</span>]
+    }
+}
+
+<span class='kw'>impl</span> <span class='ident'>FullAcAutomaton</span> {
+    <span class='kw'>fn</span> <span class='ident'>build_matrix</span><span class='op'>&lt;</span><span class='ident'>T</span>: <span class='ident'>Transitions</span><span class='op'>&gt;</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>ac</span>: <span class='kw-2'>&amp;</span><span class='ident'>AcAutomaton</span><span class='op'>&lt;</span><span class='ident'>T</span><span class='op'>&gt;</span>) {
+        <span class='kw'>for</span> (<span class='ident'>si</span>, <span class='ident'>s</span>) <span class='kw'>in</span> <span class='ident'>ac</span>.<span class='ident'>states</span>.<span class='ident'>iter</span>().<span class='ident'>enumerate</span>().<span class='ident'>skip</span>(<span class='number'>1</span>) {
+            <span class='kw'>for</span> <span class='ident'>b</span> <span class='kw'>in</span> (<span class='number'>0</span>..<span class='number'>256</span>).<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>b</span><span class='op'>|</span> <span class='ident'>b</span> <span class='kw'>as</span> <span class='ident'>u8</span>) {
+                <span class='self'>self</span>.<span class='ident'>set</span>(<span class='ident'>si</span> <span class='kw'>as</span> <span class='ident'>StateIdx</span>, <span class='ident'>b</span>, <span class='ident'>ac</span>.<span class='ident'>next_state</span>(<span class='ident'>si</span> <span class='kw'>as</span> <span class='ident'>StateIdx</span>, <span class='ident'>b</span>));
+            }
+            <span class='kw'>for</span> <span class='kw-2'>&amp;</span><span class='ident'>pati</span> <span class='kw'>in</span> <span class='kw-2'>&amp;</span><span class='ident'>s</span>.<span class='ident'>out</span> {
+                <span class='self'>self</span>.<span class='ident'>out</span>[<span class='ident'>si</span>].<span class='ident'>push</span>(<span class='ident'>pati</span>);
+            }
+        }
+    }
+}
+</pre>
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+    <section id='main' class="content source"><pre class="line-numbers"><span id="1">  1</span>
+<span id="2">  2</span>
+<span id="3">  3</span>
+<span id="4">  4</span>
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+<span id="861">861</span>
+<span id="862">862</span>
+<span id="863">863</span>
+</pre><pre class='rust '>
+<span class='doccomment'>/*!
+An implementation of the
+[Aho-Corasick string search algorithm](https://en.wikipedia.org/wiki/Aho%E2%80%93Corasick_string_matching_algorithm).
+
+The Aho-Corasick algorithm is principally useful when you need to search many
+large texts for a fixed (possibly large) set of keywords. In particular, the
+Aho-Corasick algorithm preprocesses the set of keywords by constructing a
+finite state machine. The search phase is then a quick linear scan through the
+text. Each character in the search text causes a state transition in the
+automaton. Matches are reported when the automaton enters a match state.
+
+# Examples
+
+The main type exposed by this crate is `AcAutomaton`, which can be constructed
+from an iterator of pattern strings:
+
+```rust
+use aho_corasick::{Automaton, AcAutomaton};
+
+let aut = AcAutomaton::new(vec![&quot;apple&quot;, &quot;maple&quot;]);
+
+// AcAutomaton also implements `FromIterator`:
+let aut: AcAutomaton = [&quot;apple&quot;, &quot;maple&quot;].iter().cloned().collect();
+```
+
+Finding matches can be done with `find`:
+
+```rust
+use aho_corasick::{Automaton, AcAutomaton, Match};
+
+let aut = AcAutomaton::new(vec![&quot;apple&quot;, &quot;maple&quot;]);
+let mut it = aut.find(&quot;I like maple apples.&quot;);
+assert_eq!(it.next(), Some(Match {
+    pati: 1,
+    start: 7,
+    end: 12,
+}));
+assert_eq!(it.next(), Some(Match {
+    pati: 0,
+    start: 13,
+    end: 18,
+}));
+assert_eq!(it.next(), None);
+```
+
+Use `find_overlapping` if you want to report all matches, even if they
+overlap with each other.
+
+```rust
+use aho_corasick::{Automaton, AcAutomaton, Match};
+
+let aut = AcAutomaton::new(vec![&quot;abc&quot;, &quot;a&quot;]);
+let matches: Vec&lt;_&gt; = aut.find_overlapping(&quot;abc&quot;).collect();
+assert_eq!(matches, vec![
+    Match { pati: 1, start: 0, end: 1}, Match { pati: 0, start: 0, end: 3 },
+]);
+
+// Regular `find` will report only one match:
+let matches: Vec&lt;_&gt; = aut.find(&quot;abc&quot;).collect();
+assert_eq!(matches, vec![Match { pati: 1, start: 0, end: 1}]);
+```
+
+Finally, there are also methods for finding matches on *streams*. Namely, the
+search text does not have to live in memory. It&#39;s useful to run this on files
+that can&#39;t fit into memory:
+
+```no_run
+use std::fs::File;
+
+use aho_corasick::{Automaton, AcAutomaton};
+
+let aut = AcAutomaton::new(vec![&quot;foo&quot;, &quot;bar&quot;, &quot;baz&quot;]);
+let rdr = File::open(&quot;search.txt&quot;).unwrap();
+for m in aut.stream_find(rdr) {
+    let m = m.unwrap(); // could be an IO error
+    println!(&quot;Pattern &#39;{}&#39; matched at: ({}, {})&quot;,
+             aut.pattern(m.pati), m.start, m.end);
+}
+```
+
+There is also `stream_find_overlapping`, which is just like `find_overlapping`,
+but it operates on streams.
+
+Please see `dict-search.rs` in this crate&#39;s `examples` directory for a more
+complete example. It creates a large automaton from a dictionary and can do a
+streaming match over arbitrarily large data.
+
+# Memory usage
+
+A key aspect of an Aho-Corasick implementation is how the state transitions
+are represented. The easiest way to make the automaton fast is to store a
+sparse 256-slot map in each state. It maps an input byte to a state index.
+This makes the matching loop extremely fast, since it translates to a simple
+pointer read.
+
+The problem is that as the automaton accumulates more states, you end up paying
+a `256 * 4` (`4` is for the `u32` state index) byte penalty for every state
+regardless of how many transitions it has.
+
+To solve this, only states near the root of the automaton have this sparse
+map representation. States near the leaves of the automaton use a dense mapping
+that requires a linear scan.
+
+(The specific limit currently set is `3`, so that states with a depth less than
+or equal to `3` are less memory efficient. The result is that the memory usage
+of the automaton stops growing rapidly past ~60MB, even for automatons with
+thousands of patterns.)
+
+If you&#39;d like to opt for the less-memory-efficient-but-faster version, then
+you can construct an `AcAutomaton` with a `Sparse` transition strategy:
+
+```rust
+use aho_corasick::{Automaton, AcAutomaton, Match, Sparse};
+
+let aut = AcAutomaton::&lt;Sparse&gt;::with_transitions(vec![&quot;abc&quot;, &quot;a&quot;]);
+let matches: Vec&lt;_&gt; = aut.find(&quot;abc&quot;).collect();
+assert_eq!(matches, vec![Match { pati: 1, start: 0, end: 1}]);
+```
+*/</span>
+
+<span class='attribute'>#<span class='op'>!</span>[<span class='ident'>deny</span>(<span class='ident'>missing_docs</span>)]</span>
+
+<span class='kw'>extern</span> <span class='kw'>crate</span> <span class='ident'>memchr</span>;
+<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>test</span>)]</span> <span class='kw'>extern</span> <span class='kw'>crate</span> <span class='ident'>quickcheck</span>;
+<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>test</span>)]</span> <span class='kw'>extern</span> <span class='kw'>crate</span> <span class='ident'>rand</span>;
+
+<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>collections</span>::<span class='ident'>VecDeque</span>;
+<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>fmt</span>;
+<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>iter</span>::<span class='ident'>FromIterator</span>;
+
+<span class='kw'>use</span> <span class='ident'>memchr</span>::<span class='ident'>memchr</span>;
+
+<span class='kw'>pub</span> <span class='kw'>use</span> <span class='self'>self</span>::<span class='ident'>autiter</span>::{
+    <span class='ident'>Automaton</span>, <span class='ident'>Match</span>,
+    <span class='ident'>Matches</span>, <span class='ident'>MatchesOverlapping</span>, <span class='ident'>StreamMatches</span>, <span class='ident'>StreamMatchesOverlapping</span>,
+};
+<span class='kw'>pub</span> <span class='kw'>use</span> <span class='self'>self</span>::<span class='ident'>full</span>::<span class='ident'>FullAcAutomaton</span>;
+
+<span class='comment'>// We&#39;re specifying paths explicitly so that we can use</span>
+<span class='comment'>// these modules simultaneously from `main.rs`.</span>
+<span class='comment'>// Should probably make just make `main.rs` a separate crate.</span>
+<span class='attribute'>#[<span class='ident'>path</span> <span class='op'>=</span> <span class='string'>&quot;autiter.rs&quot;</span>]</span>
+<span class='kw'>mod</span> <span class='ident'>autiter</span>;
+<span class='attribute'>#[<span class='ident'>path</span> <span class='op'>=</span> <span class='string'>&quot;full.rs&quot;</span>]</span>
+<span class='kw'>mod</span> <span class='ident'>full</span>;
+
+<span class='doccomment'>/// The integer type used for the state index.</span>
+<span class='doccomment'>///</span>
+<span class='doccomment'>/// Limiting this to 32 bit integers can have a big impact on memory usage</span>
+<span class='doccomment'>/// when using the `Sparse` transition representation.</span>
+<span class='kw'>pub</span> <span class='kw'>type</span> <span class='ident'>StateIdx</span> <span class='op'>=</span> <span class='ident'>u32</span>;
+
+<span class='kw'>type</span> <span class='ident'>PatIdx</span> <span class='op'>=</span> <span class='ident'>usize</span>;
+
+<span class='comment'>// Constants for special state indexes.</span>
+<span class='kw'>const</span> <span class='ident'>FAIL_STATE</span>: <span class='ident'>u32</span> <span class='op'>=</span> <span class='number'>0</span>;
+<span class='kw'>const</span> <span class='ident'>ROOT_STATE</span>: <span class='ident'>u32</span> <span class='op'>=</span> <span class='number'>1</span>;
+
+<span class='comment'>// Limit the depth at which we use a dense alphabet map. Once the limit is</span>
+<span class='comment'>// reached, a sparse set is used (and lookup becomes O(n)).</span>
+<span class='comment'>//</span>
+<span class='comment'>// This does have a performance hit, but the (straight forward) alternative</span>
+<span class='comment'>// is to have a `256 * 4` byte overhead for every state.</span>
+<span class='comment'>// Given that Aho-Corasick is typically used for dictionary searching, this</span>
+<span class='comment'>// can lead to dramatic memory bloat.</span>
+<span class='comment'>//</span>
+<span class='comment'>// This limit should only be increased at your peril. Namely, in the worst</span>
+<span class='comment'>// case, `256^DENSE_DEPTH_THRESHOLD * 4` corresponds to the memory usage in</span>
+<span class='comment'>// bytes. A value of `3` gives us a solid cap at around 64MB, which works</span>
+<span class='comment'>// well in practice even for dictionary sized automatons.</span>
+<span class='comment'>//</span>
+<span class='comment'>// Why not make this user configurable? Well, it doesn&#39;t make much sense</span>
+<span class='comment'>// because we pay for it with case analysis in the matching loop. Increasing it</span>
+<span class='comment'>// doesn&#39;t have much impact on performance (outside of pathological cases?).</span>
+<span class='comment'>//</span>
+<span class='comment'>// There is probably room for adding a new automaton type that doesn&#39;t have</span>
+<span class='comment'>// this restriction.</span>
+<span class='comment'>//</span>
+<span class='comment'>// N.B. Someone else seems to have discovered an alternative, but I haven&#39;t</span>
+<span class='comment'>// grokked it yet: https://github.com/mischasan/aho-corasick</span>
+<span class='kw'>const</span> <span class='ident'>DENSE_DEPTH_THRESHOLD</span>: <span class='ident'>u32</span> <span class='op'>=</span> <span class='number'>3</span>;
+
+<span class='doccomment'>/// An Aho-Corasick finite automaton.</span>
+<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Clone</span>)]</span>
+<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>AcAutomaton</span><span class='op'>&lt;</span><span class='ident'>T</span><span class='op'>=</span><span class='ident'>Dense</span><span class='op'>&gt;</span> {
+    <span class='ident'>pats</span>: <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>String</span><span class='op'>&gt;</span>,
+    <span class='ident'>states</span>: <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>State</span><span class='op'>&lt;</span><span class='ident'>T</span><span class='op'>&gt;&gt;</span>,
+    <span class='ident'>start_bytes</span>: <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span>,
+}
+
+<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Clone</span>)]</span>
+<span class='kw'>struct</span> <span class='ident'>State</span><span class='op'>&lt;</span><span class='ident'>T</span><span class='op'>&gt;</span> {
+    <span class='ident'>out</span>: <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>PatIdx</span><span class='op'>&gt;</span>,
+    <span class='ident'>fail</span>: <span class='ident'>StateIdx</span>,
+    <span class='ident'>goto</span>: <span class='ident'>T</span>,
+    <span class='ident'>depth</span>: <span class='ident'>u32</span>,
+}
+
+<span class='kw'>impl</span> <span class='ident'>AcAutomaton</span> {
+    <span class='doccomment'>/// Create a new automaton from an iterator of patterns.</span>
+    <span class='doccomment'>///</span>
+    <span class='doccomment'>/// The patterns must be convertible to Unicode `String` values via the</span>
+    <span class='doccomment'>/// `Into` trait.</span>
+    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>new</span><span class='op'>&lt;</span><span class='ident'>S</span>, <span class='ident'>I</span><span class='op'>&gt;</span>(<span class='ident'>pats</span>: <span class='ident'>I</span>) <span class='op'>-&gt;</span> <span class='ident'>AcAutomaton</span><span class='op'>&lt;</span><span class='ident'>Dense</span><span class='op'>&gt;</span>
+            <span class='kw'>where</span> <span class='ident'>S</span>: <span class='ident'>Into</span><span class='op'>&lt;</span><span class='ident'>String</span><span class='op'>&gt;</span>, <span class='ident'>I</span>: <span class='ident'>IntoIterator</span><span class='op'>&lt;</span><span class='ident'>Item</span><span class='op'>=</span><span class='ident'>S</span><span class='op'>&gt;</span> {
+        <span class='ident'>AcAutomaton</span>::<span class='ident'>with_transitions</span>(<span class='ident'>pats</span>)
+    }
+}
+
+<span class='kw'>impl</span><span class='op'>&lt;</span><span class='ident'>T</span>: <span class='ident'>Transitions</span><span class='op'>&gt;</span> <span class='ident'>AcAutomaton</span><span class='op'>&lt;</span><span class='ident'>T</span><span class='op'>&gt;</span> {
+    <span class='doccomment'>/// Create a new automaton from an iterator of patterns.</span>
+    <span class='doccomment'>///</span>
+    <span class='doccomment'>/// This constructor allows one to choose the transition representation.</span>
+    <span class='doccomment'>///</span>
+    <span class='doccomment'>/// The patterns must be convertible to Unicode `String` values via the</span>
+    <span class='doccomment'>/// `Into` trait.</span>
+    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>with_transitions</span><span class='op'>&lt;</span><span class='ident'>S</span>, <span class='ident'>I</span><span class='op'>&gt;</span>(<span class='ident'>pats</span>: <span class='ident'>I</span>) <span class='op'>-&gt;</span> <span class='ident'>AcAutomaton</span><span class='op'>&lt;</span><span class='ident'>T</span><span class='op'>&gt;</span>
+            <span class='kw'>where</span> <span class='ident'>S</span>: <span class='ident'>Into</span><span class='op'>&lt;</span><span class='ident'>String</span><span class='op'>&gt;</span>, <span class='ident'>I</span>: <span class='ident'>IntoIterator</span><span class='op'>&lt;</span><span class='ident'>Item</span><span class='op'>=</span><span class='ident'>S</span><span class='op'>&gt;</span> {
+        <span class='ident'>AcAutomaton</span> {
+            <span class='ident'>pats</span>: <span class='macro'>vec</span><span class='macro'>!</span>[], <span class='comment'>// filled in later, avoid wrath of borrow checker</span>
+            <span class='ident'>states</span>: <span class='macro'>vec</span><span class='macro'>!</span>[<span class='ident'>State</span>::<span class='ident'>new</span>(<span class='number'>0</span>), <span class='ident'>State</span>::<span class='ident'>new</span>(<span class='number'>0</span>)], <span class='comment'>// empty and root</span>
+            <span class='ident'>start_bytes</span>: <span class='macro'>vec</span><span class='macro'>!</span>[], <span class='comment'>// also filled in later</span>
+        }.<span class='ident'>build</span>(<span class='ident'>pats</span>.<span class='ident'>into_iter</span>().<span class='ident'>map</span>(<span class='ident'>Into</span>::<span class='ident'>into</span>).<span class='ident'>collect</span>())
+    }
+
+    <span class='doccomment'>/// Build out the entire automaton into a single matrix.</span>
+    <span class='doccomment'>///</span>
+    <span class='doccomment'>/// This will make searching as fast as possible at the expense of using</span>
+    <span class='doccomment'>/// at least `4 * 256 * #states` bytes of memory.</span>
+    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>into_full</span>(<span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>FullAcAutomaton</span> {
+        <span class='ident'>FullAcAutomaton</span>::<span class='ident'>new</span>(<span class='self'>self</span>)
+    }
+}
+
+<span class='kw'>impl</span><span class='op'>&lt;</span><span class='ident'>T</span>: <span class='ident'>Transitions</span><span class='op'>&gt;</span> <span class='ident'>Automaton</span> <span class='kw'>for</span> <span class='ident'>AcAutomaton</span><span class='op'>&lt;</span><span class='ident'>T</span><span class='op'>&gt;</span> {
+    <span class='attribute'>#[<span class='ident'>inline</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>next_state</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='kw-2'>mut</span> <span class='ident'>si</span>: <span class='ident'>StateIdx</span>, <span class='ident'>b</span>: <span class='ident'>u8</span>) <span class='op'>-&gt;</span> <span class='ident'>StateIdx</span> {
+        <span class='kw'>loop</span> {
+            <span class='kw'>let</span> <span class='ident'>maybe_si</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>states</span>[<span class='ident'>si</span> <span class='kw'>as</span> <span class='ident'>usize</span>].<span class='ident'>goto</span>(<span class='ident'>b</span>);
+            <span class='kw'>if</span> <span class='ident'>maybe_si</span> <span class='op'>!=</span> <span class='ident'>FAIL_STATE</span> {
+                <span class='ident'>si</span> <span class='op'>=</span> <span class='ident'>maybe_si</span>;
+                <span class='kw'>break</span>;
+            } <span class='kw'>else</span> {
+                <span class='ident'>si</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>states</span>[<span class='ident'>si</span> <span class='kw'>as</span> <span class='ident'>usize</span>].<span class='ident'>fail</span>;
+            }
+        }
+        <span class='ident'>si</span>
+    }
+
+    <span class='attribute'>#[<span class='ident'>inline</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>get_match</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>si</span>: <span class='ident'>StateIdx</span>, <span class='ident'>outi</span>: <span class='ident'>usize</span>, <span class='ident'>texti</span>: <span class='ident'>usize</span>) <span class='op'>-&gt;</span> <span class='ident'>Match</span> {
+        <span class='kw'>let</span> <span class='ident'>pati</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>states</span>[<span class='ident'>si</span> <span class='kw'>as</span> <span class='ident'>usize</span>].<span class='ident'>out</span>[<span class='ident'>outi</span>];
+        <span class='kw'>let</span> <span class='ident'>patlen</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>pats</span>[<span class='ident'>pati</span>].<span class='ident'>len</span>();
+        <span class='kw'>let</span> <span class='ident'>start</span> <span class='op'>=</span> <span class='ident'>texti</span> <span class='op'>+</span> <span class='number'>1</span> <span class='op'>-</span> <span class='ident'>patlen</span>;
+        <span class='ident'>Match</span> {
+            <span class='ident'>pati</span>: <span class='ident'>pati</span>,
+            <span class='ident'>start</span>: <span class='ident'>start</span>,
+            <span class='ident'>end</span>: <span class='ident'>start</span> <span class='op'>+</span> <span class='ident'>patlen</span>,
+        }
+    }
+
+    <span class='attribute'>#[<span class='ident'>inline</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>has_match</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>si</span>: <span class='ident'>StateIdx</span>, <span class='ident'>outi</span>: <span class='ident'>usize</span>) <span class='op'>-&gt;</span> <span class='ident'>bool</span> {
+        <span class='ident'>outi</span> <span class='op'>&lt;</span> <span class='self'>self</span>.<span class='ident'>states</span>[<span class='ident'>si</span> <span class='kw'>as</span> <span class='ident'>usize</span>].<span class='ident'>out</span>.<span class='ident'>len</span>()
+    }
+
+    <span class='attribute'>#[<span class='ident'>inline</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>skip_to</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>si</span>: <span class='ident'>StateIdx</span>, <span class='ident'>text</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>at</span>: <span class='ident'>usize</span>) <span class='op'>-&gt;</span> <span class='ident'>usize</span> {
+        <span class='kw'>if</span> <span class='ident'>si</span> <span class='op'>!=</span> <span class='ident'>ROOT_STATE</span> <span class='op'>||</span> <span class='op'>!</span><span class='self'>self</span>.<span class='ident'>is_skippable</span>() {
+            <span class='kw'>return</span> <span class='ident'>at</span>;
+        }
+        <span class='kw'>let</span> <span class='ident'>b</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>start_bytes</span>[<span class='number'>0</span>];
+        <span class='kw'>match</span> <span class='ident'>memchr</span>(<span class='ident'>b</span>, <span class='kw-2'>&amp;</span><span class='ident'>text</span>[<span class='ident'>at</span>..]) {
+            <span class='prelude-val'>None</span> <span class='op'>=&gt;</span> <span class='ident'>text</span>.<span class='ident'>len</span>(),
+            <span class='prelude-val'>Some</span>(<span class='ident'>i</span>) <span class='op'>=&gt;</span> <span class='ident'>at</span> <span class='op'>+</span> <span class='ident'>i</span>,
+        }
+    }
+
+    <span class='attribute'>#[<span class='ident'>inline</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>is_skippable</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>bool</span> {
+        <span class='self'>self</span>.<span class='ident'>start_bytes</span>.<span class='ident'>len</span>() <span class='op'>==</span> <span class='number'>1</span>
+    }
+
+    <span class='attribute'>#[<span class='ident'>inline</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>patterns</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='kw-2'>&amp;</span>[<span class='ident'>String</span>] {
+        <span class='kw-2'>&amp;</span><span class='self'>self</span>.<span class='ident'>pats</span>
+    }
+
+    <span class='attribute'>#[<span class='ident'>inline</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>pattern</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>i</span>: <span class='ident'>usize</span>) <span class='op'>-&gt;</span> <span class='kw-2'>&amp;</span><span class='ident'>str</span> {
+        <span class='kw-2'>&amp;</span><span class='self'>self</span>.<span class='ident'>pats</span>[<span class='ident'>i</span>]
+    }
+}
+
+<span class='comment'>// Below contains code for *building* the automaton. It&#39;s a reasonably faithful</span>
+<span class='comment'>// translation of the description/psuedo-code from:</span>
+<span class='comment'>// http://www.cs.uku.fi/~kilpelai/BSA05/lectures/slides04.pdf</span>
+
+<span class='kw'>impl</span><span class='op'>&lt;</span><span class='ident'>T</span>: <span class='ident'>Transitions</span><span class='op'>&gt;</span> <span class='ident'>AcAutomaton</span><span class='op'>&lt;</span><span class='ident'>T</span><span class='op'>&gt;</span> {
+    <span class='comment'>// This is the first phase and builds the initial keyword tree.</span>
+    <span class='kw'>fn</span> <span class='ident'>build</span>(<span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>pats</span>: <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>String</span><span class='op'>&gt;</span>) <span class='op'>-&gt;</span> <span class='ident'>AcAutomaton</span><span class='op'>&lt;</span><span class='ident'>T</span><span class='op'>&gt;</span> {
+        <span class='kw'>for</span> (<span class='ident'>pati</span>, <span class='ident'>pat</span>) <span class='kw'>in</span> <span class='ident'>pats</span>.<span class='ident'>iter</span>().<span class='ident'>enumerate</span>() {
+            <span class='kw'>if</span> <span class='ident'>pat</span>.<span class='ident'>is_empty</span>() {
+                <span class='kw'>continue</span>;
+            }
+            <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>previ</span> <span class='op'>=</span> <span class='ident'>ROOT_STATE</span>;
+            <span class='kw'>for</span> <span class='kw-2'>&amp;</span><span class='ident'>b</span> <span class='kw'>in</span> <span class='ident'>pat</span>.<span class='ident'>as_bytes</span>() {
+                <span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>states</span>[<span class='ident'>previ</span> <span class='kw'>as</span> <span class='ident'>usize</span>].<span class='ident'>goto</span>(<span class='ident'>b</span>) <span class='op'>!=</span> <span class='ident'>FAIL_STATE</span> {
+                    <span class='ident'>previ</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>states</span>[<span class='ident'>previ</span> <span class='kw'>as</span> <span class='ident'>usize</span>].<span class='ident'>goto</span>(<span class='ident'>b</span>);
+                } <span class='kw'>else</span> {
+                    <span class='kw'>let</span> <span class='ident'>depth</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>states</span>[<span class='ident'>previ</span> <span class='kw'>as</span> <span class='ident'>usize</span>].<span class='ident'>depth</span> <span class='op'>+</span> <span class='number'>1</span>;
+                    <span class='kw'>let</span> <span class='ident'>nexti</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>add_state</span>(<span class='ident'>State</span>::<span class='ident'>new</span>(<span class='ident'>depth</span>));
+                    <span class='self'>self</span>.<span class='ident'>states</span>[<span class='ident'>previ</span> <span class='kw'>as</span> <span class='ident'>usize</span>].<span class='ident'>set_goto</span>(<span class='ident'>b</span>, <span class='ident'>nexti</span>);
+                    <span class='ident'>previ</span> <span class='op'>=</span> <span class='ident'>nexti</span>;
+                }
+            }
+            <span class='self'>self</span>.<span class='ident'>states</span>[<span class='ident'>previ</span> <span class='kw'>as</span> <span class='ident'>usize</span>].<span class='ident'>out</span>.<span class='ident'>push</span>(<span class='ident'>pati</span>);
+        }
+        <span class='kw'>for</span> <span class='ident'>c</span> <span class='kw'>in</span> (<span class='number'>0</span>..<span class='number'>256</span>).<span class='ident'>into_iter</span>().<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>c</span><span class='op'>|</span> <span class='ident'>c</span> <span class='kw'>as</span> <span class='ident'>u8</span>) {
+            <span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>states</span>[<span class='ident'>ROOT_STATE</span> <span class='kw'>as</span> <span class='ident'>usize</span>].<span class='ident'>goto</span>(<span class='ident'>c</span>) <span class='op'>==</span> <span class='ident'>FAIL_STATE</span> {
+                <span class='self'>self</span>.<span class='ident'>states</span>[<span class='ident'>ROOT_STATE</span> <span class='kw'>as</span> <span class='ident'>usize</span>].<span class='ident'>set_goto</span>(<span class='ident'>c</span>, <span class='ident'>ROOT_STATE</span>);
+            } <span class='kw'>else</span> {
+                <span class='self'>self</span>.<span class='ident'>start_bytes</span>.<span class='ident'>push</span>(<span class='ident'>c</span>);
+            }
+        }
+        <span class='self'>self</span>.<span class='ident'>pats</span> <span class='op'>=</span> <span class='ident'>pats</span>;
+        <span class='self'>self</span>.<span class='ident'>fill</span>()
+    }
+
+    <span class='comment'>// The second phase that fills in the back links.</span>
+    <span class='kw'>fn</span> <span class='ident'>fill</span>(<span class='kw-2'>mut</span> <span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>AcAutomaton</span><span class='op'>&lt;</span><span class='ident'>T</span><span class='op'>&gt;</span> {
+        <span class='comment'>// Fill up the queue with all non-root transitions out of the root</span>
+        <span class='comment'>// node. Then proceed by breadth first traversal.</span>
+        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>q</span> <span class='op'>=</span> <span class='ident'>VecDeque</span>::<span class='ident'>new</span>();
+        <span class='kw'>for</span> <span class='ident'>c</span> <span class='kw'>in</span> (<span class='number'>0</span>..<span class='number'>256</span>).<span class='ident'>into_iter</span>().<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>c</span><span class='op'>|</span> <span class='ident'>c</span> <span class='kw'>as</span> <span class='ident'>u8</span>) {
+            <span class='kw'>let</span> <span class='ident'>si</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>states</span>[<span class='ident'>ROOT_STATE</span> <span class='kw'>as</span> <span class='ident'>usize</span>].<span class='ident'>goto</span>(<span class='ident'>c</span>);
+            <span class='kw'>if</span> <span class='ident'>si</span> <span class='op'>!=</span> <span class='ident'>ROOT_STATE</span> {
+                <span class='ident'>q</span>.<span class='ident'>push_front</span>(<span class='ident'>si</span>);
+            }
+        }
+        <span class='kw'>while</span> <span class='kw'>let</span> <span class='prelude-val'>Some</span>(<span class='ident'>si</span>) <span class='op'>=</span> <span class='ident'>q</span>.<span class='ident'>pop_back</span>() {
+            <span class='kw'>for</span> <span class='ident'>c</span> <span class='kw'>in</span> (<span class='number'>0</span>..<span class='number'>256</span>).<span class='ident'>into_iter</span>().<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>c</span><span class='op'>|</span> <span class='ident'>c</span> <span class='kw'>as</span> <span class='ident'>u8</span>) {
+                <span class='kw'>let</span> <span class='ident'>u</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>states</span>[<span class='ident'>si</span> <span class='kw'>as</span> <span class='ident'>usize</span>].<span class='ident'>goto</span>(<span class='ident'>c</span>);
+                <span class='kw'>if</span> <span class='ident'>u</span> <span class='op'>!=</span> <span class='ident'>FAIL_STATE</span> {
+                    <span class='ident'>q</span>.<span class='ident'>push_front</span>(<span class='ident'>u</span>);
+                    <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>v</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>states</span>[<span class='ident'>si</span> <span class='kw'>as</span> <span class='ident'>usize</span>].<span class='ident'>fail</span>;
+                    <span class='kw'>while</span> <span class='self'>self</span>.<span class='ident'>states</span>[<span class='ident'>v</span> <span class='kw'>as</span> <span class='ident'>usize</span>].<span class='ident'>goto</span>(<span class='ident'>c</span>) <span class='op'>==</span> <span class='ident'>FAIL_STATE</span> {
+                        <span class='ident'>v</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>states</span>[<span class='ident'>v</span> <span class='kw'>as</span> <span class='ident'>usize</span>].<span class='ident'>fail</span>;
+                    }
+                    <span class='kw'>let</span> <span class='ident'>ufail</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>states</span>[<span class='ident'>v</span> <span class='kw'>as</span> <span class='ident'>usize</span>].<span class='ident'>goto</span>(<span class='ident'>c</span>);
+                    <span class='self'>self</span>.<span class='ident'>states</span>[<span class='ident'>u</span> <span class='kw'>as</span> <span class='ident'>usize</span>].<span class='ident'>fail</span> <span class='op'>=</span> <span class='ident'>ufail</span>;
+                    <span class='kw'>let</span> <span class='ident'>ufail_out</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>states</span>[<span class='ident'>ufail</span> <span class='kw'>as</span> <span class='ident'>usize</span>].<span class='ident'>out</span>.<span class='ident'>clone</span>();
+                    <span class='self'>self</span>.<span class='ident'>states</span>[<span class='ident'>u</span> <span class='kw'>as</span> <span class='ident'>usize</span>].<span class='ident'>out</span>.<span class='ident'>extend</span>(<span class='ident'>ufail_out</span>);
+                }
+            }
+        }
+        <span class='self'>self</span>
+    }
+
+    <span class='kw'>fn</span> <span class='ident'>add_state</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>state</span>: <span class='ident'>State</span><span class='op'>&lt;</span><span class='ident'>T</span><span class='op'>&gt;</span>) <span class='op'>-&gt;</span> <span class='ident'>StateIdx</span> {
+        <span class='kw'>let</span> <span class='ident'>i</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>states</span>.<span class='ident'>len</span>();
+        <span class='self'>self</span>.<span class='ident'>states</span>.<span class='ident'>push</span>(<span class='ident'>state</span>);
+        <span class='ident'>i</span> <span class='kw'>as</span> <span class='ident'>StateIdx</span>
+    }
+}
+
+<span class='kw'>impl</span><span class='op'>&lt;</span><span class='ident'>T</span>: <span class='ident'>Transitions</span><span class='op'>&gt;</span> <span class='ident'>State</span><span class='op'>&lt;</span><span class='ident'>T</span><span class='op'>&gt;</span> {
+    <span class='kw'>fn</span> <span class='ident'>new</span>(<span class='ident'>depth</span>: <span class='ident'>u32</span>) <span class='op'>-&gt;</span> <span class='ident'>State</span><span class='op'>&lt;</span><span class='ident'>T</span><span class='op'>&gt;</span> {
+        <span class='ident'>State</span> {
+            <span class='ident'>out</span>: <span class='macro'>vec</span><span class='macro'>!</span>[],
+            <span class='ident'>fail</span>: <span class='number'>1</span>,
+            <span class='ident'>goto</span>: <span class='ident'>Transitions</span>::<span class='ident'>new</span>(<span class='ident'>depth</span>),
+            <span class='ident'>depth</span>: <span class='ident'>depth</span>,
+        }
+    }
+
+    <span class='kw'>fn</span> <span class='ident'>goto</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>b</span>: <span class='ident'>u8</span>) <span class='op'>-&gt;</span> <span class='ident'>StateIdx</span> { <span class='self'>self</span>.<span class='ident'>goto</span>.<span class='ident'>goto</span>(<span class='ident'>b</span>) }
+    <span class='kw'>fn</span> <span class='ident'>set_goto</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>b</span>: <span class='ident'>u8</span>, <span class='ident'>si</span>: <span class='ident'>StateIdx</span>) { <span class='self'>self</span>.<span class='ident'>goto</span>.<span class='ident'>set_goto</span>(<span class='ident'>b</span>, <span class='ident'>si</span>); }
+}
+
+<span class='doccomment'>/// An abstraction over state transition strategies.</span>
+<span class='doccomment'>///</span>
+<span class='doccomment'>/// This is an attempt to let the caller choose the space/time trade offs</span>
+<span class='doccomment'>/// used for state transitions.</span>
+<span class='doccomment'>///</span>
+<span class='doccomment'>/// (It&#39;s possible that this interface is merely good enough for just the two</span>
+<span class='doccomment'>/// implementations in this crate.)</span>
+<span class='kw'>pub</span> <span class='kw'>trait</span> <span class='ident'>Transitions</span> {
+    <span class='doccomment'>/// Return a new state at the given depth.</span>
+    <span class='kw'>fn</span> <span class='ident'>new</span>(<span class='ident'>depth</span>: <span class='ident'>u32</span>) <span class='op'>-&gt;</span> <span class='kw'>Self</span>;
+    <span class='doccomment'>/// Return the next state index given the next character.</span>
+    <span class='kw'>fn</span> <span class='ident'>goto</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>alpha</span>: <span class='ident'>u8</span>) <span class='op'>-&gt;</span> <span class='ident'>StateIdx</span>;
+    <span class='doccomment'>/// Set the next state index for the character given.</span>
+    <span class='kw'>fn</span> <span class='ident'>set_goto</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>alpha</span>: <span class='ident'>u8</span>, <span class='ident'>si</span>: <span class='ident'>StateIdx</span>);
+}
+
+<span class='doccomment'>/// State transitions that can be stored either sparsely or densely.</span>
+<span class='doccomment'>///</span>
+<span class='doccomment'>/// This uses less space but at the expense of slower matching.</span>
+<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Clone</span>, <span class='ident'>Debug</span>)]</span>
+<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>Dense</span>(<span class='ident'>DenseChoice</span>);
+
+<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Clone</span>, <span class='ident'>Debug</span>)]</span>
+<span class='kw'>enum</span> <span class='ident'>DenseChoice</span> {
+    <span class='ident'>Sparse</span>(<span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>StateIdx</span><span class='op'>&gt;</span>), <span class='comment'>// indexed by alphabet</span>
+    <span class='ident'>Dense</span>(<span class='ident'>Vec</span><span class='op'>&lt;</span>(<span class='ident'>u8</span>, <span class='ident'>StateIdx</span>)<span class='op'>&gt;</span>),
+}
+
+<span class='kw'>impl</span> <span class='ident'>Transitions</span> <span class='kw'>for</span> <span class='ident'>Dense</span> {
+    <span class='kw'>fn</span> <span class='ident'>new</span>(<span class='ident'>depth</span>: <span class='ident'>u32</span>) <span class='op'>-&gt;</span> <span class='ident'>Dense</span> {
+        <span class='kw'>if</span> <span class='ident'>depth</span> <span class='op'>&lt;=</span> <span class='ident'>DENSE_DEPTH_THRESHOLD</span> {
+            <span class='ident'>Dense</span>(<span class='ident'>DenseChoice</span>::<span class='ident'>Sparse</span>(<span class='macro'>vec</span><span class='macro'>!</span>[<span class='number'>0</span>; <span class='number'>256</span>]))
+        } <span class='kw'>else</span> {
+            <span class='ident'>Dense</span>(<span class='ident'>DenseChoice</span>::<span class='ident'>Dense</span>(<span class='macro'>vec</span><span class='macro'>!</span>[]))
+        }
+    }
+
+    <span class='kw'>fn</span> <span class='ident'>goto</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>b1</span>: <span class='ident'>u8</span>) <span class='op'>-&gt;</span> <span class='ident'>StateIdx</span> {
+        <span class='kw'>match</span> <span class='self'>self</span>.<span class='number'>0</span> {
+            <span class='ident'>DenseChoice</span>::<span class='ident'>Sparse</span>(<span class='kw-2'>ref</span> <span class='ident'>m</span>) <span class='op'>=&gt;</span> <span class='ident'>m</span>[<span class='ident'>b1</span> <span class='kw'>as</span> <span class='ident'>usize</span>],
+            <span class='ident'>DenseChoice</span>::<span class='ident'>Dense</span>(<span class='kw-2'>ref</span> <span class='ident'>m</span>) <span class='op'>=&gt;</span> {
+                <span class='kw'>for</span> <span class='kw-2'>&amp;</span>(<span class='ident'>b2</span>, <span class='ident'>si</span>) <span class='kw'>in</span> <span class='ident'>m</span> {
+                    <span class='kw'>if</span> <span class='ident'>b1</span> <span class='op'>==</span> <span class='ident'>b2</span> {
+                        <span class='kw'>return</span> <span class='ident'>si</span>;
+                    }
+                }
+                <span class='ident'>FAIL_STATE</span>
+            }
+        }
+    }
+
+    <span class='kw'>fn</span> <span class='ident'>set_goto</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>b</span>: <span class='ident'>u8</span>, <span class='ident'>si</span>: <span class='ident'>StateIdx</span>) {
+        <span class='kw'>match</span> <span class='self'>self</span>.<span class='number'>0</span> {
+            <span class='ident'>DenseChoice</span>::<span class='ident'>Sparse</span>(<span class='kw-2'>ref</span> <span class='kw-2'>mut</span> <span class='ident'>m</span>) <span class='op'>=&gt;</span> <span class='ident'>m</span>[<span class='ident'>b</span> <span class='kw'>as</span> <span class='ident'>usize</span>] <span class='op'>=</span> <span class='ident'>si</span>,
+            <span class='ident'>DenseChoice</span>::<span class='ident'>Dense</span>(<span class='kw-2'>ref</span> <span class='kw-2'>mut</span> <span class='ident'>m</span>) <span class='op'>=&gt;</span> <span class='ident'>m</span>.<span class='ident'>push</span>((<span class='ident'>b</span>, <span class='ident'>si</span>)),
+        }
+    }
+}
+
+<span class='doccomment'>/// State transitions that are always sparse.</span>
+<span class='doccomment'>///</span>
+<span class='doccomment'>/// This can use enormous amounts of memory when there are many patterns,</span>
+<span class='doccomment'>/// but matching is very fast.</span>
+<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Clone</span>, <span class='ident'>Debug</span>)]</span>
+<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>Sparse</span>(<span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>StateIdx</span><span class='op'>&gt;</span>);
+
+<span class='kw'>impl</span> <span class='ident'>Transitions</span> <span class='kw'>for</span> <span class='ident'>Sparse</span> {
+    <span class='kw'>fn</span> <span class='ident'>new</span>(_: <span class='ident'>u32</span>) <span class='op'>-&gt;</span> <span class='ident'>Sparse</span> {
+        <span class='ident'>Sparse</span>(<span class='macro'>vec</span><span class='macro'>!</span>[<span class='number'>0</span>; <span class='number'>256</span>])
+    }
+
+    <span class='attribute'>#[<span class='ident'>inline</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>goto</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>b</span>: <span class='ident'>u8</span>) <span class='op'>-&gt;</span> <span class='ident'>StateIdx</span> {
+        <span class='self'>self</span>.<span class='number'>0</span>[<span class='ident'>b</span> <span class='kw'>as</span> <span class='ident'>usize</span>]
+    }
+
+    <span class='kw'>fn</span> <span class='ident'>set_goto</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>b</span>: <span class='ident'>u8</span>, <span class='ident'>si</span>: <span class='ident'>StateIdx</span>) {
+        <span class='self'>self</span>.<span class='number'>0</span>[<span class='ident'>b</span> <span class='kw'>as</span> <span class='ident'>usize</span>] <span class='op'>=</span> <span class='ident'>si</span>;
+    }
+}
+
+<span class='kw'>impl</span><span class='op'>&lt;</span><span class='ident'>S</span>: <span class='ident'>Into</span><span class='op'>&lt;</span><span class='ident'>String</span><span class='op'>&gt;&gt;</span> <span class='ident'>FromIterator</span><span class='op'>&lt;</span><span class='ident'>S</span><span class='op'>&gt;</span> <span class='kw'>for</span> <span class='ident'>AcAutomaton</span> {
+    <span class='doccomment'>/// Create an automaton from an iterator of strings.</span>
+    <span class='kw'>fn</span> <span class='ident'>from_iter</span><span class='op'>&lt;</span><span class='ident'>T</span><span class='op'>&gt;</span>(<span class='ident'>it</span>: <span class='ident'>T</span>) <span class='op'>-&gt;</span> <span class='ident'>AcAutomaton</span> <span class='kw'>where</span> <span class='ident'>T</span>: <span class='ident'>IntoIterator</span><span class='op'>&lt;</span><span class='ident'>Item</span><span class='op'>=</span><span class='ident'>S</span><span class='op'>&gt;</span> {
+        <span class='ident'>AcAutomaton</span>::<span class='ident'>new</span>(<span class='ident'>it</span>)
+    }
+}
+
+<span class='comment'>// Provide some question debug impls for viewing automatons.</span>
+<span class='comment'>// The custom impls mostly exist for special showing of sparse maps.</span>
+
+<span class='kw'>impl</span><span class='op'>&lt;</span><span class='ident'>T</span>: <span class='ident'>Transitions</span><span class='op'>&gt;</span> <span class='ident'>fmt</span>::<span class='ident'>Debug</span> <span class='kw'>for</span> <span class='ident'>AcAutomaton</span><span class='op'>&lt;</span><span class='ident'>T</span><span class='op'>&gt;</span> {
+    <span class='kw'>fn</span> <span class='ident'>fmt</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>f</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>fmt</span>::<span class='ident'>Formatter</span>) <span class='op'>-&gt;</span> <span class='ident'>fmt</span>::<span class='prelude-ty'>Result</span> {
+        <span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>iter</span>::<span class='ident'>repeat</span>;
+
+        <span class='macro'>try</span><span class='macro'>!</span>(<span class='macro'>writeln</span><span class='macro'>!</span>(<span class='ident'>f</span>, <span class='string'>&quot;{}&quot;</span>, <span class='ident'>repeat</span>(<span class='string'>&#39;-&#39;</span>).<span class='ident'>take</span>(<span class='number'>79</span>).<span class='ident'>collect</span>::<span class='op'>&lt;</span><span class='ident'>String</span><span class='op'>&gt;</span>()));
+        <span class='macro'>try</span><span class='macro'>!</span>(<span class='macro'>writeln</span><span class='macro'>!</span>(<span class='ident'>f</span>, <span class='string'>&quot;Patterns: {:?}&quot;</span>, <span class='self'>self</span>.<span class='ident'>pats</span>));
+        <span class='kw'>for</span> (<span class='ident'>i</span>, <span class='ident'>state</span>) <span class='kw'>in</span> <span class='self'>self</span>.<span class='ident'>states</span>.<span class='ident'>iter</span>().<span class='ident'>enumerate</span>().<span class='ident'>skip</span>(<span class='number'>1</span>) {
+            <span class='macro'>try</span><span class='macro'>!</span>(<span class='macro'>writeln</span><span class='macro'>!</span>(<span class='ident'>f</span>, <span class='string'>&quot;{:3}: {}&quot;</span>, <span class='ident'>i</span>, <span class='ident'>state</span>.<span class='ident'>debug</span>(<span class='ident'>i</span> <span class='op'>==</span> <span class='number'>1</span>)));
+        }
+        <span class='macro'>write</span><span class='macro'>!</span>(<span class='ident'>f</span>, <span class='string'>&quot;{}&quot;</span>, <span class='ident'>repeat</span>(<span class='string'>&#39;-&#39;</span>).<span class='ident'>take</span>(<span class='number'>79</span>).<span class='ident'>collect</span>::<span class='op'>&lt;</span><span class='ident'>String</span><span class='op'>&gt;</span>())
+    }
+}
+
+<span class='kw'>impl</span><span class='op'>&lt;</span><span class='ident'>T</span>: <span class='ident'>Transitions</span><span class='op'>&gt;</span> <span class='ident'>State</span><span class='op'>&lt;</span><span class='ident'>T</span><span class='op'>&gt;</span> {
+    <span class='kw'>fn</span> <span class='ident'>debug</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>root</span>: <span class='ident'>bool</span>) <span class='op'>-&gt;</span> <span class='ident'>String</span> {
+        <span class='macro'>format</span><span class='macro'>!</span>(<span class='string'>&quot;State {{ depth: {:?}, out: {:?}, fail: {:?}, goto: {{{}}} }}&quot;</span>,
+                <span class='self'>self</span>.<span class='ident'>depth</span>, <span class='self'>self</span>.<span class='ident'>out</span>, <span class='self'>self</span>.<span class='ident'>fail</span>, <span class='self'>self</span>.<span class='ident'>goto_string</span>(<span class='ident'>root</span>))
+    }
+
+    <span class='kw'>fn</span> <span class='ident'>goto_string</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>root</span>: <span class='ident'>bool</span>) <span class='op'>-&gt;</span> <span class='ident'>String</span> {
+        <span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>char</span>::<span class='ident'>from_u32</span>;
+
+        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>goto</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[];
+        <span class='kw'>for</span> <span class='ident'>b</span> <span class='kw'>in</span> (<span class='number'>0</span>..<span class='number'>256</span>).<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>b</span><span class='op'>|</span> <span class='ident'>b</span> <span class='kw'>as</span> <span class='ident'>u8</span>) {
+            <span class='kw'>let</span> <span class='ident'>si</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>goto</span>(<span class='ident'>b</span>);
+            <span class='kw'>if</span> (<span class='op'>!</span><span class='ident'>root</span> <span class='op'>&amp;&amp;</span> <span class='ident'>si</span> <span class='op'>==</span> <span class='ident'>FAIL_STATE</span>) <span class='op'>||</span> (<span class='ident'>root</span> <span class='op'>&amp;&amp;</span> <span class='ident'>si</span> <span class='op'>==</span> <span class='ident'>ROOT_STATE</span>) {
+                <span class='kw'>continue</span>;
+            }
+            <span class='ident'>goto</span>.<span class='ident'>push</span>(<span class='macro'>format</span><span class='macro'>!</span>(<span class='string'>&quot;{} =&gt; {}&quot;</span>, <span class='ident'>from_u32</span>(<span class='ident'>b</span> <span class='kw'>as</span> <span class='ident'>u32</span>).<span class='ident'>unwrap</span>(), <span class='ident'>si</span>));
+        }
+        <span class='ident'>goto</span>.<span class='ident'>connect</span>(<span class='string'>&quot;, &quot;</span>)
+    }
+}
+
+<span class='kw'>impl</span><span class='op'>&lt;</span><span class='ident'>T</span>: <span class='ident'>Transitions</span><span class='op'>&gt;</span> <span class='ident'>fmt</span>::<span class='ident'>Debug</span> <span class='kw'>for</span> <span class='ident'>State</span><span class='op'>&lt;</span><span class='ident'>T</span><span class='op'>&gt;</span> {
+    <span class='kw'>fn</span> <span class='ident'>fmt</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>f</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>fmt</span>::<span class='ident'>Formatter</span>) <span class='op'>-&gt;</span> <span class='ident'>fmt</span>::<span class='prelude-ty'>Result</span> {
+        <span class='macro'>write</span><span class='macro'>!</span>(<span class='ident'>f</span>, <span class='string'>&quot;{}&quot;</span>, <span class='self'>self</span>.<span class='ident'>debug</span>(<span class='boolval'>false</span>))
+    }
+}
+
+<span class='kw'>impl</span><span class='op'>&lt;</span><span class='ident'>T</span>: <span class='ident'>Transitions</span><span class='op'>&gt;</span> <span class='ident'>AcAutomaton</span><span class='op'>&lt;</span><span class='ident'>T</span><span class='op'>&gt;</span> {
+    <span class='attribute'>#[<span class='ident'>doc</span>(<span class='ident'>hidden</span>)]</span>
+    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>dot</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>String</span> {
+        <span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>fmt</span>::<span class='ident'>Write</span>;
+        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>out</span> <span class='op'>=</span> <span class='ident'>String</span>::<span class='ident'>new</span>();
+        <span class='macro'>macro_rules</span><span class='macro'>!</span> <span class='ident'>w</span> {
+            (<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>w</span>:<span class='ident'>expr</span>, $(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>tt</span>:<span class='ident'>tt</span>)<span class='op'>*</span>) <span class='op'>=&gt;</span> { {<span class='macro'>write</span><span class='macro'>!</span>(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>w</span>, $(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>tt</span>)<span class='op'>*</span>)}.<span class='ident'>unwrap</span>() }
+        }
+
+        <span class='macro'>w</span><span class='macro'>!</span>(<span class='ident'>out</span>, <span class='string'>r#&quot;
+digraph automaton {{
+    label=&lt;&lt;FONT POINT-SIZE=&quot;20&quot;&gt;{}&lt;/FONT&gt;&gt;;
+    labelloc=&quot;l&quot;;
+    labeljust=&quot;l&quot;;
+    rankdir=&quot;LR&quot;;
+&quot;#</span>, <span class='self'>self</span>.<span class='ident'>pats</span>.<span class='ident'>connect</span>(<span class='string'>&quot;, &quot;</span>));
+        <span class='kw'>for</span> (<span class='ident'>i</span>, <span class='ident'>s</span>) <span class='kw'>in</span> <span class='self'>self</span>.<span class='ident'>states</span>.<span class='ident'>iter</span>().<span class='ident'>enumerate</span>().<span class='ident'>skip</span>(<span class='number'>1</span>) {
+            <span class='kw'>let</span> <span class='ident'>i</span> <span class='op'>=</span> <span class='ident'>i</span> <span class='kw'>as</span> <span class='ident'>u32</span>;
+            <span class='kw'>if</span> <span class='ident'>s</span>.<span class='ident'>out</span>.<span class='ident'>len</span>() <span class='op'>==</span> <span class='number'>0</span> {
+                <span class='macro'>w</span><span class='macro'>!</span>(<span class='ident'>out</span>, <span class='string'>&quot;    {};\n&quot;</span>, <span class='ident'>i</span>);
+            } <span class='kw'>else</span> {
+                <span class='macro'>w</span><span class='macro'>!</span>(<span class='ident'>out</span>, <span class='string'>&quot;    {} [peripheries=2];\n&quot;</span>, <span class='ident'>i</span>);
+            }
+            <span class='macro'>w</span><span class='macro'>!</span>(<span class='ident'>out</span>, <span class='string'>&quot;    {} -&gt; {} [style=dashed];\n&quot;</span>, <span class='ident'>i</span>, <span class='ident'>s</span>.<span class='ident'>fail</span>);
+            <span class='kw'>for</span> <span class='ident'>b</span> <span class='kw'>in</span> (<span class='number'>0</span>..<span class='number'>256</span>).<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>b</span><span class='op'>|</span> <span class='ident'>b</span> <span class='kw'>as</span> <span class='ident'>u8</span>) {
+                <span class='kw'>let</span> <span class='ident'>si</span> <span class='op'>=</span> <span class='ident'>s</span>.<span class='ident'>goto</span>(<span class='ident'>b</span>);
+                <span class='kw'>if</span> <span class='ident'>si</span> <span class='op'>==</span> <span class='ident'>FAIL_STATE</span> <span class='op'>||</span> (<span class='ident'>i</span> <span class='op'>==</span> <span class='ident'>ROOT_STATE</span> <span class='op'>&amp;&amp;</span> <span class='ident'>si</span> <span class='op'>==</span> <span class='ident'>ROOT_STATE</span>) {
+                    <span class='kw'>continue</span>;
+                }
+                <span class='macro'>w</span><span class='macro'>!</span>(<span class='ident'>out</span>, <span class='string'>&quot;    {} -&gt; {} [label={}];\n&quot;</span>, <span class='ident'>i</span>, <span class='ident'>si</span>, <span class='ident'>b</span> <span class='kw'>as</span> <span class='ident'>char</span>);
+            }
+        }
+        <span class='macro'>w</span><span class='macro'>!</span>(<span class='ident'>out</span>, <span class='string'>&quot;}}&quot;</span>);
+        <span class='ident'>out</span>
+    }
+}
+
+<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>test</span>)]</span>
+<span class='kw'>mod</span> <span class='ident'>tests</span> {
+    <span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>collections</span>::<span class='ident'>HashSet</span>;
+    <span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>io</span>;
+
+    <span class='kw'>use</span> <span class='ident'>quickcheck</span>::{<span class='ident'>Arbitrary</span>, <span class='ident'>Gen</span>, <span class='ident'>quickcheck</span>};
+    <span class='kw'>use</span> <span class='ident'>rand</span>::<span class='ident'>Rng</span>;
+
+    <span class='kw'>use</span> <span class='ident'>super</span>::{<span class='ident'>Automaton</span>, <span class='ident'>AcAutomaton</span>, <span class='ident'>Match</span>};
+
+    <span class='kw'>fn</span> <span class='ident'>aut_find</span><span class='op'>&lt;</span><span class='ident'>S</span><span class='op'>&gt;</span>(<span class='ident'>xs</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>S</span>], <span class='ident'>haystack</span>: <span class='kw-2'>&amp;</span><span class='ident'>str</span>) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>Match</span><span class='op'>&gt;</span>
+            <span class='kw'>where</span> <span class='ident'>S</span>: <span class='ident'>Clone</span> <span class='op'>+</span> <span class='ident'>Into</span><span class='op'>&lt;</span><span class='ident'>String</span><span class='op'>&gt;</span> {
+        <span class='ident'>AcAutomaton</span>::<span class='ident'>new</span>(<span class='ident'>xs</span>.<span class='ident'>to_vec</span>()).<span class='ident'>find</span>(<span class='kw-2'>&amp;</span><span class='ident'>haystack</span>).<span class='ident'>collect</span>()
+    }
+
+    <span class='kw'>fn</span> <span class='ident'>aut_finds</span><span class='op'>&lt;</span><span class='ident'>S</span><span class='op'>&gt;</span>(<span class='ident'>xs</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>S</span>], <span class='ident'>haystack</span>: <span class='kw-2'>&amp;</span><span class='ident'>str</span>) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>Match</span><span class='op'>&gt;</span>
+            <span class='kw'>where</span> <span class='ident'>S</span>: <span class='ident'>Clone</span> <span class='op'>+</span> <span class='ident'>Into</span><span class='op'>&lt;</span><span class='ident'>String</span><span class='op'>&gt;</span> {
+        <span class='kw'>let</span> <span class='ident'>cur</span> <span class='op'>=</span> <span class='ident'>io</span>::<span class='ident'>Cursor</span>::<span class='ident'>new</span>(<span class='ident'>haystack</span>.<span class='ident'>as_bytes</span>());
+        <span class='ident'>AcAutomaton</span>::<span class='ident'>new</span>(<span class='ident'>xs</span>.<span class='ident'>to_vec</span>())
+            .<span class='ident'>stream_find</span>(<span class='ident'>cur</span>).<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>r</span><span class='op'>|</span> <span class='ident'>r</span>.<span class='ident'>unwrap</span>()).<span class='ident'>collect</span>()
+    }
+
+    <span class='kw'>fn</span> <span class='ident'>aut_findf</span><span class='op'>&lt;</span><span class='ident'>S</span><span class='op'>&gt;</span>(<span class='ident'>xs</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>S</span>], <span class='ident'>haystack</span>: <span class='kw-2'>&amp;</span><span class='ident'>str</span>) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>Match</span><span class='op'>&gt;</span>
+            <span class='kw'>where</span> <span class='ident'>S</span>: <span class='ident'>Clone</span> <span class='op'>+</span> <span class='ident'>Into</span><span class='op'>&lt;</span><span class='ident'>String</span><span class='op'>&gt;</span> {
+        <span class='ident'>AcAutomaton</span>::<span class='ident'>new</span>(<span class='ident'>xs</span>.<span class='ident'>to_vec</span>()).<span class='ident'>into_full</span>().<span class='ident'>find</span>(<span class='ident'>haystack</span>).<span class='ident'>collect</span>()
+    }
+
+    <span class='kw'>fn</span> <span class='ident'>aut_findfs</span><span class='op'>&lt;</span><span class='ident'>S</span><span class='op'>&gt;</span>(<span class='ident'>xs</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>S</span>], <span class='ident'>haystack</span>: <span class='kw-2'>&amp;</span><span class='ident'>str</span>) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>Match</span><span class='op'>&gt;</span>
+            <span class='kw'>where</span> <span class='ident'>S</span>: <span class='ident'>Clone</span> <span class='op'>+</span> <span class='ident'>Into</span><span class='op'>&lt;</span><span class='ident'>String</span><span class='op'>&gt;</span> {
+        <span class='kw'>let</span> <span class='ident'>cur</span> <span class='op'>=</span> <span class='ident'>io</span>::<span class='ident'>Cursor</span>::<span class='ident'>new</span>(<span class='ident'>haystack</span>.<span class='ident'>as_bytes</span>());
+        <span class='ident'>AcAutomaton</span>::<span class='ident'>new</span>(<span class='ident'>xs</span>.<span class='ident'>to_vec</span>())
+            .<span class='ident'>into_full</span>()
+            .<span class='ident'>stream_find</span>(<span class='ident'>cur</span>).<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>r</span><span class='op'>|</span> <span class='ident'>r</span>.<span class='ident'>unwrap</span>()).<span class='ident'>collect</span>()
+    }
+
+    <span class='kw'>fn</span> <span class='ident'>aut_findo</span><span class='op'>&lt;</span><span class='ident'>S</span><span class='op'>&gt;</span>(<span class='ident'>xs</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>S</span>], <span class='ident'>haystack</span>: <span class='kw-2'>&amp;</span><span class='ident'>str</span>) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>Match</span><span class='op'>&gt;</span>
+            <span class='kw'>where</span> <span class='ident'>S</span>: <span class='ident'>Clone</span> <span class='op'>+</span> <span class='ident'>Into</span><span class='op'>&lt;</span><span class='ident'>String</span><span class='op'>&gt;</span> {
+        <span class='ident'>AcAutomaton</span>::<span class='ident'>new</span>(<span class='ident'>xs</span>.<span class='ident'>to_vec</span>()).<span class='ident'>find_overlapping</span>(<span class='ident'>haystack</span>).<span class='ident'>collect</span>()
+    }
+
+    <span class='kw'>fn</span> <span class='ident'>aut_findos</span><span class='op'>&lt;</span><span class='ident'>S</span><span class='op'>&gt;</span>(<span class='ident'>xs</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>S</span>], <span class='ident'>haystack</span>: <span class='kw-2'>&amp;</span><span class='ident'>str</span>) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>Match</span><span class='op'>&gt;</span>
+            <span class='kw'>where</span> <span class='ident'>S</span>: <span class='ident'>Clone</span> <span class='op'>+</span> <span class='ident'>Into</span><span class='op'>&lt;</span><span class='ident'>String</span><span class='op'>&gt;</span> {
+        <span class='kw'>let</span> <span class='ident'>cur</span> <span class='op'>=</span> <span class='ident'>io</span>::<span class='ident'>Cursor</span>::<span class='ident'>new</span>(<span class='ident'>haystack</span>.<span class='ident'>as_bytes</span>());
+        <span class='ident'>AcAutomaton</span>::<span class='ident'>new</span>(<span class='ident'>xs</span>.<span class='ident'>to_vec</span>())
+            .<span class='ident'>stream_find_overlapping</span>(<span class='ident'>cur</span>).<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>r</span><span class='op'>|</span> <span class='ident'>r</span>.<span class='ident'>unwrap</span>()).<span class='ident'>collect</span>()
+    }
+
+    <span class='kw'>fn</span> <span class='ident'>aut_findfo</span><span class='op'>&lt;</span><span class='ident'>S</span><span class='op'>&gt;</span>(<span class='ident'>xs</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>S</span>], <span class='ident'>haystack</span>: <span class='kw-2'>&amp;</span><span class='ident'>str</span>) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>Match</span><span class='op'>&gt;</span>
+            <span class='kw'>where</span> <span class='ident'>S</span>: <span class='ident'>Clone</span> <span class='op'>+</span> <span class='ident'>Into</span><span class='op'>&lt;</span><span class='ident'>String</span><span class='op'>&gt;</span> {
+        <span class='ident'>AcAutomaton</span>::<span class='ident'>new</span>(<span class='ident'>xs</span>.<span class='ident'>to_vec</span>())
+            .<span class='ident'>into_full</span>().<span class='ident'>find_overlapping</span>(<span class='ident'>haystack</span>).<span class='ident'>collect</span>()
+    }
+
+    <span class='kw'>fn</span> <span class='ident'>aut_findfos</span><span class='op'>&lt;</span><span class='ident'>S</span><span class='op'>&gt;</span>(<span class='ident'>xs</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>S</span>], <span class='ident'>haystack</span>: <span class='kw-2'>&amp;</span><span class='ident'>str</span>) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>Match</span><span class='op'>&gt;</span>
+            <span class='kw'>where</span> <span class='ident'>S</span>: <span class='ident'>Clone</span> <span class='op'>+</span> <span class='ident'>Into</span><span class='op'>&lt;</span><span class='ident'>String</span><span class='op'>&gt;</span> {
+        <span class='kw'>let</span> <span class='ident'>cur</span> <span class='op'>=</span> <span class='ident'>io</span>::<span class='ident'>Cursor</span>::<span class='ident'>new</span>(<span class='ident'>haystack</span>.<span class='ident'>as_bytes</span>());
+        <span class='ident'>AcAutomaton</span>::<span class='ident'>new</span>(<span class='ident'>xs</span>.<span class='ident'>to_vec</span>())
+            .<span class='ident'>into_full</span>()
+            .<span class='ident'>stream_find_overlapping</span>(<span class='ident'>cur</span>).<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>r</span><span class='op'>|</span> <span class='ident'>r</span>.<span class='ident'>unwrap</span>()).<span class='ident'>collect</span>()
+    }
+
+    <span class='attribute'>#[<span class='ident'>test</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>one_pattern_one_match</span>() {
+        <span class='kw'>let</span> <span class='ident'>ns</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[<span class='string'>&quot;a&quot;</span>];
+        <span class='kw'>let</span> <span class='ident'>hay</span> <span class='op'>=</span> <span class='string'>&quot;za&quot;</span>;
+        <span class='kw'>let</span> <span class='ident'>matches</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>0</span>, <span class='ident'>start</span>: <span class='number'>1</span>, <span class='ident'>end</span>: <span class='number'>2</span> },
+        ];
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_find</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_finds</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findf</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findfs</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+    }
+
+    <span class='attribute'>#[<span class='ident'>test</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>one_pattern_many_match</span>() {
+        <span class='kw'>let</span> <span class='ident'>ns</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[<span class='string'>&quot;a&quot;</span>];
+        <span class='kw'>let</span> <span class='ident'>hay</span> <span class='op'>=</span> <span class='string'>&quot;zazazzzza&quot;</span>;
+        <span class='kw'>let</span> <span class='ident'>matches</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>0</span>, <span class='ident'>start</span>: <span class='number'>1</span>, <span class='ident'>end</span>: <span class='number'>2</span> },
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>0</span>, <span class='ident'>start</span>: <span class='number'>3</span>, <span class='ident'>end</span>: <span class='number'>4</span> },
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>0</span>, <span class='ident'>start</span>: <span class='number'>8</span>, <span class='ident'>end</span>: <span class='number'>9</span> },
+        ];
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_find</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_finds</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findf</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findfs</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+    }
+
+    <span class='attribute'>#[<span class='ident'>test</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>one_longer_pattern_one_match</span>() {
+        <span class='kw'>let</span> <span class='ident'>ns</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[<span class='string'>&quot;abc&quot;</span>];
+        <span class='kw'>let</span> <span class='ident'>hay</span> <span class='op'>=</span> <span class='string'>&quot;zazabcz&quot;</span>;
+        <span class='kw'>let</span> <span class='ident'>matches</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[ <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>0</span>, <span class='ident'>start</span>: <span class='number'>3</span>, <span class='ident'>end</span>: <span class='number'>6</span> } ];
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_find</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_finds</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findf</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findfs</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+    }
+
+    <span class='attribute'>#[<span class='ident'>test</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>one_longer_pattern_many_match</span>() {
+        <span class='kw'>let</span> <span class='ident'>ns</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[<span class='string'>&quot;abc&quot;</span>];
+        <span class='kw'>let</span> <span class='ident'>hay</span> <span class='op'>=</span> <span class='string'>&quot;zazabczzzzazzzabc&quot;</span>;
+        <span class='kw'>let</span> <span class='ident'>matches</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>0</span>, <span class='ident'>start</span>: <span class='number'>3</span>, <span class='ident'>end</span>: <span class='number'>6</span> },
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>0</span>, <span class='ident'>start</span>: <span class='number'>14</span>, <span class='ident'>end</span>: <span class='number'>17</span> },
+        ];
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_find</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_finds</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findf</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findfs</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+    }
+
+    <span class='attribute'>#[<span class='ident'>test</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>many_pattern_one_match</span>() {
+        <span class='kw'>let</span> <span class='ident'>ns</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[<span class='string'>&quot;a&quot;</span>, <span class='string'>&quot;b&quot;</span>];
+        <span class='kw'>let</span> <span class='ident'>hay</span> <span class='op'>=</span> <span class='string'>&quot;zb&quot;</span>;
+        <span class='kw'>let</span> <span class='ident'>matches</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[ <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>1</span>, <span class='ident'>start</span>: <span class='number'>1</span>, <span class='ident'>end</span>: <span class='number'>2</span> } ];
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_find</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_finds</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findf</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findfs</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+    }
+
+    <span class='attribute'>#[<span class='ident'>test</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>many_pattern_many_match</span>() {
+        <span class='kw'>let</span> <span class='ident'>ns</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[<span class='string'>&quot;a&quot;</span>, <span class='string'>&quot;b&quot;</span>];
+        <span class='kw'>let</span> <span class='ident'>hay</span> <span class='op'>=</span> <span class='string'>&quot;zbzazzzzb&quot;</span>;
+        <span class='kw'>let</span> <span class='ident'>matches</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>1</span>, <span class='ident'>start</span>: <span class='number'>1</span>, <span class='ident'>end</span>: <span class='number'>2</span> },
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>0</span>, <span class='ident'>start</span>: <span class='number'>3</span>, <span class='ident'>end</span>: <span class='number'>4</span> },
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>1</span>, <span class='ident'>start</span>: <span class='number'>8</span>, <span class='ident'>end</span>: <span class='number'>9</span> },
+        ];
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_find</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_finds</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findf</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findfs</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+    }
+
+    <span class='attribute'>#[<span class='ident'>test</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>many_longer_pattern_one_match</span>() {
+        <span class='kw'>let</span> <span class='ident'>ns</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[<span class='string'>&quot;abc&quot;</span>, <span class='string'>&quot;xyz&quot;</span>];
+        <span class='kw'>let</span> <span class='ident'>hay</span> <span class='op'>=</span> <span class='string'>&quot;zazxyzz&quot;</span>;
+        <span class='kw'>let</span> <span class='ident'>matches</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[ <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>1</span>, <span class='ident'>start</span>: <span class='number'>3</span>, <span class='ident'>end</span>: <span class='number'>6</span> } ];
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_find</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_finds</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findf</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findfs</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+    }
+
+    <span class='attribute'>#[<span class='ident'>test</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>many_longer_pattern_many_match</span>() {
+        <span class='kw'>let</span> <span class='ident'>ns</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[<span class='string'>&quot;abc&quot;</span>, <span class='string'>&quot;xyz&quot;</span>];
+        <span class='kw'>let</span> <span class='ident'>hay</span> <span class='op'>=</span> <span class='string'>&quot;zazxyzzzzzazzzabcxyz&quot;</span>;
+        <span class='kw'>let</span> <span class='ident'>matches</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>1</span>, <span class='ident'>start</span>: <span class='number'>3</span>, <span class='ident'>end</span>: <span class='number'>6</span> },
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>0</span>, <span class='ident'>start</span>: <span class='number'>14</span>, <span class='ident'>end</span>: <span class='number'>17</span> },
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>1</span>, <span class='ident'>start</span>: <span class='number'>17</span>, <span class='ident'>end</span>: <span class='number'>20</span> },
+        ];
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_find</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_finds</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findf</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findfs</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+    }
+
+    <span class='attribute'>#[<span class='ident'>test</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>many_longer_pattern_overlap_one_match</span>() {
+        <span class='kw'>let</span> <span class='ident'>ns</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[<span class='string'>&quot;abc&quot;</span>, <span class='string'>&quot;bc&quot;</span>];
+        <span class='kw'>let</span> <span class='ident'>hay</span> <span class='op'>=</span> <span class='string'>&quot;zazabcz&quot;</span>;
+        <span class='kw'>let</span> <span class='ident'>matches</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>0</span>, <span class='ident'>start</span>: <span class='number'>3</span>, <span class='ident'>end</span>: <span class='number'>6</span> },
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>1</span>, <span class='ident'>start</span>: <span class='number'>4</span>, <span class='ident'>end</span>: <span class='number'>6</span> },
+        ];
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findo</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findos</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findfo</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findfos</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+    }
+
+    <span class='attribute'>#[<span class='ident'>test</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>many_longer_pattern_overlap_one_match_reverse</span>() {
+        <span class='kw'>let</span> <span class='ident'>ns</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[<span class='string'>&quot;abc&quot;</span>, <span class='string'>&quot;bc&quot;</span>];
+        <span class='kw'>let</span> <span class='ident'>hay</span> <span class='op'>=</span> <span class='string'>&quot;xbc&quot;</span>;
+        <span class='kw'>let</span> <span class='ident'>matches</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[ <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>1</span>, <span class='ident'>start</span>: <span class='number'>1</span>, <span class='ident'>end</span>: <span class='number'>3</span> } ];
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findo</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findos</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findfo</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findfos</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+    }
+
+    <span class='attribute'>#[<span class='ident'>test</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>many_longer_pattern_overlap_many_match</span>() {
+        <span class='kw'>let</span> <span class='ident'>ns</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[<span class='string'>&quot;abc&quot;</span>, <span class='string'>&quot;bc&quot;</span>, <span class='string'>&quot;c&quot;</span>];
+        <span class='kw'>let</span> <span class='ident'>hay</span> <span class='op'>=</span> <span class='string'>&quot;zzzabczzzbczzzc&quot;</span>;
+        <span class='kw'>let</span> <span class='ident'>matches</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>0</span>, <span class='ident'>start</span>: <span class='number'>3</span>, <span class='ident'>end</span>: <span class='number'>6</span> },
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>1</span>, <span class='ident'>start</span>: <span class='number'>4</span>, <span class='ident'>end</span>: <span class='number'>6</span> },
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>2</span>, <span class='ident'>start</span>: <span class='number'>5</span>, <span class='ident'>end</span>: <span class='number'>6</span> },
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>1</span>, <span class='ident'>start</span>: <span class='number'>9</span>, <span class='ident'>end</span>: <span class='number'>11</span> },
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>2</span>, <span class='ident'>start</span>: <span class='number'>10</span>, <span class='ident'>end</span>: <span class='number'>11</span> },
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>2</span>, <span class='ident'>start</span>: <span class='number'>14</span>, <span class='ident'>end</span>: <span class='number'>15</span> },
+        ];
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findo</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findos</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findfo</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findfos</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+    }
+
+    <span class='attribute'>#[<span class='ident'>test</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>many_longer_pattern_overlap_many_match_reverse</span>() {
+        <span class='kw'>let</span> <span class='ident'>ns</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[<span class='string'>&quot;abc&quot;</span>, <span class='string'>&quot;bc&quot;</span>, <span class='string'>&quot;c&quot;</span>];
+        <span class='kw'>let</span> <span class='ident'>hay</span> <span class='op'>=</span> <span class='string'>&quot;zzzczzzbczzzabc&quot;</span>;
+        <span class='kw'>let</span> <span class='ident'>matches</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>2</span>, <span class='ident'>start</span>: <span class='number'>3</span>, <span class='ident'>end</span>: <span class='number'>4</span> },
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>1</span>, <span class='ident'>start</span>: <span class='number'>7</span>, <span class='ident'>end</span>: <span class='number'>9</span> },
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>2</span>, <span class='ident'>start</span>: <span class='number'>8</span>, <span class='ident'>end</span>: <span class='number'>9</span> },
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>0</span>, <span class='ident'>start</span>: <span class='number'>12</span>, <span class='ident'>end</span>: <span class='number'>15</span> },
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>1</span>, <span class='ident'>start</span>: <span class='number'>13</span>, <span class='ident'>end</span>: <span class='number'>15</span> },
+            <span class='ident'>Match</span> { <span class='ident'>pati</span>: <span class='number'>2</span>, <span class='ident'>start</span>: <span class='number'>14</span>, <span class='ident'>end</span>: <span class='number'>15</span> },
+        ];
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findo</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findos</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findfo</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='kw-2'>&amp;</span><span class='ident'>aut_findfos</span>(<span class='kw-2'>&amp;</span><span class='ident'>ns</span>, <span class='ident'>hay</span>), <span class='kw-2'>&amp;</span><span class='ident'>matches</span>);
+    }
+
+    <span class='comment'>// Quickcheck time.</span>
+
+    <span class='comment'>// This generates very small ascii strings, which makes them more likely</span>
+    <span class='comment'>// to interact in interesting ways with larger haystack strings.</span>
+    <span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Clone</span>, <span class='ident'>Debug</span>, <span class='ident'>PartialEq</span>, <span class='ident'>Eq</span>, <span class='ident'>PartialOrd</span>, <span class='ident'>Ord</span>)]</span>
+    <span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>SmallAscii</span>(<span class='ident'>String</span>);
+
+    <span class='kw'>impl</span> <span class='ident'>Arbitrary</span> <span class='kw'>for</span> <span class='ident'>SmallAscii</span> {
+        <span class='kw'>fn</span> <span class='ident'>arbitrary</span><span class='op'>&lt;</span><span class='ident'>G</span>: <span class='ident'>Gen</span><span class='op'>&gt;</span>(<span class='ident'>g</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>G</span>) <span class='op'>-&gt;</span> <span class='ident'>SmallAscii</span> {
+            <span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>char</span>::<span class='ident'>from_u32</span>;
+            <span class='ident'>SmallAscii</span>((<span class='number'>0</span>..<span class='number'>2</span>)
+                       .<span class='ident'>map</span>(<span class='op'>|</span>_<span class='op'>|</span> <span class='ident'>from_u32</span>(<span class='ident'>g</span>.<span class='ident'>gen_range</span>(<span class='number'>97</span>, <span class='number'>123</span>)).<span class='ident'>unwrap</span>())
+                       .<span class='ident'>collect</span>())
+        }
+
+        <span class='kw'>fn</span> <span class='ident'>shrink</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>Box</span><span class='op'>&lt;</span><span class='ident'>Iterator</span><span class='op'>&lt;</span><span class='ident'>Item</span><span class='op'>=</span><span class='ident'>SmallAscii</span><span class='op'>&gt;&gt;</span> {
+            <span class='ident'>Box</span>::<span class='ident'>new</span>(<span class='self'>self</span>.<span class='number'>0</span>.<span class='ident'>shrink</span>().<span class='ident'>map</span>(<span class='ident'>SmallAscii</span>))
+        }
+    }
+
+    <span class='kw'>impl</span> <span class='ident'>From</span><span class='op'>&lt;</span><span class='ident'>SmallAscii</span><span class='op'>&gt;</span> <span class='kw'>for</span> <span class='ident'>String</span> {
+        <span class='kw'>fn</span> <span class='ident'>from</span>(<span class='ident'>s</span>: <span class='ident'>SmallAscii</span>) <span class='op'>-&gt;</span> <span class='ident'>String</span> { <span class='ident'>s</span>.<span class='number'>0</span> }
+    }
+
+    <span class='comment'>// This is the same arbitrary impl as `String`, except it has a bias toward</span>
+    <span class='comment'>// ASCII characters.</span>
+    <span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Clone</span>, <span class='ident'>Debug</span>, <span class='ident'>PartialEq</span>, <span class='ident'>Eq</span>, <span class='ident'>PartialOrd</span>, <span class='ident'>Ord</span>)]</span>
+    <span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>BiasAscii</span>(<span class='ident'>String</span>);
+
+    <span class='kw'>impl</span> <span class='ident'>Arbitrary</span> <span class='kw'>for</span> <span class='ident'>BiasAscii</span> {
+        <span class='kw'>fn</span> <span class='ident'>arbitrary</span><span class='op'>&lt;</span><span class='ident'>G</span>: <span class='ident'>Gen</span><span class='op'>&gt;</span>(<span class='ident'>g</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>G</span>) <span class='op'>-&gt;</span> <span class='ident'>BiasAscii</span> {
+            <span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>char</span>::<span class='ident'>from_u32</span>;
+            <span class='kw'>let</span> <span class='ident'>size</span> <span class='op'>=</span> { <span class='kw'>let</span> <span class='ident'>s</span> <span class='op'>=</span> <span class='ident'>g</span>.<span class='ident'>size</span>(); <span class='ident'>g</span>.<span class='ident'>gen_range</span>(<span class='number'>0</span>, <span class='ident'>s</span>) };
+            <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>s</span> <span class='op'>=</span> <span class='ident'>String</span>::<span class='ident'>with_capacity</span>(<span class='ident'>size</span>);
+            <span class='kw'>for</span> _ <span class='kw'>in</span> <span class='number'>0</span>..<span class='ident'>size</span> {
+                <span class='kw'>if</span> <span class='ident'>g</span>.<span class='ident'>gen_weighted_bool</span>(<span class='number'>3</span>) {
+                    <span class='ident'>s</span>.<span class='ident'>push</span>(<span class='ident'>char</span>::<span class='ident'>arbitrary</span>(<span class='ident'>g</span>));
+                } <span class='kw'>else</span> {
+                    <span class='kw'>for</span> _ <span class='kw'>in</span> <span class='number'>0</span>..<span class='number'>5</span> {
+                        <span class='ident'>s</span>.<span class='ident'>push</span>(<span class='ident'>from_u32</span>(<span class='ident'>g</span>.<span class='ident'>gen_range</span>(<span class='number'>97</span>, <span class='number'>123</span>)).<span class='ident'>unwrap</span>());
+                    }
+                }
+            }
+            <span class='ident'>BiasAscii</span>(<span class='ident'>s</span>)
+        }
+
+        <span class='kw'>fn</span> <span class='ident'>shrink</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>Box</span><span class='op'>&lt;</span><span class='ident'>Iterator</span><span class='op'>&lt;</span><span class='ident'>Item</span><span class='op'>=</span><span class='ident'>BiasAscii</span><span class='op'>&gt;&gt;</span> {
+            <span class='ident'>Box</span>::<span class='ident'>new</span>(<span class='self'>self</span>.<span class='number'>0</span>.<span class='ident'>shrink</span>().<span class='ident'>map</span>(<span class='ident'>BiasAscii</span>))
+        }
+    }
+
+    <span class='kw'>fn</span> <span class='ident'>naive_find</span><span class='op'>&lt;</span><span class='ident'>S</span><span class='op'>&gt;</span>(<span class='ident'>xs</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>S</span>], <span class='ident'>haystack</span>: <span class='kw-2'>&amp;</span><span class='ident'>str</span>) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>Match</span><span class='op'>&gt;</span>
+            <span class='kw'>where</span> <span class='ident'>S</span>: <span class='ident'>Clone</span> <span class='op'>+</span> <span class='ident'>Into</span><span class='op'>&lt;</span><span class='ident'>String</span><span class='op'>&gt;</span> {
+        <span class='kw'>let</span> <span class='ident'>needles</span>: <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>String</span><span class='op'>&gt;</span> <span class='op'>=</span>
+            <span class='ident'>xs</span>.<span class='ident'>to_vec</span>().<span class='ident'>into_iter</span>().<span class='ident'>map</span>(<span class='ident'>Into</span>::<span class='ident'>into</span>).<span class='ident'>collect</span>();
+        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>matches</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[];
+        <span class='kw'>for</span> <span class='ident'>hi</span> <span class='kw'>in</span> <span class='number'>0</span>..<span class='ident'>haystack</span>.<span class='ident'>len</span>() {
+            <span class='kw'>for</span> (<span class='ident'>pati</span>, <span class='ident'>needle</span>) <span class='kw'>in</span> <span class='ident'>needles</span>.<span class='ident'>iter</span>().<span class='ident'>enumerate</span>() {
+                <span class='kw'>let</span> <span class='ident'>needle</span> <span class='op'>=</span> <span class='ident'>needle</span>.<span class='ident'>as_bytes</span>();
+                <span class='kw'>if</span> <span class='ident'>needle</span>.<span class='ident'>len</span>() <span class='op'>==</span> <span class='number'>0</span> <span class='op'>||</span> <span class='ident'>needle</span>.<span class='ident'>len</span>() <span class='op'>&gt;</span> <span class='ident'>haystack</span>.<span class='ident'>len</span>() <span class='op'>-</span> <span class='ident'>hi</span> {
+                    <span class='kw'>continue</span>;
+                }
+                <span class='kw'>if</span> <span class='ident'>needle</span> <span class='op'>==</span> <span class='kw-2'>&amp;</span><span class='ident'>haystack</span>.<span class='ident'>as_bytes</span>()[<span class='ident'>hi</span>..<span class='ident'>hi</span><span class='op'>+</span><span class='ident'>needle</span>.<span class='ident'>len</span>()] {
+                    <span class='ident'>matches</span>.<span class='ident'>push</span>(<span class='ident'>Match</span> {
+                        <span class='ident'>pati</span>: <span class='ident'>pati</span>,
+                        <span class='ident'>start</span>: <span class='ident'>hi</span>,
+                        <span class='ident'>end</span>: <span class='ident'>hi</span> <span class='op'>+</span> <span class='ident'>needle</span>.<span class='ident'>len</span>(),
+                    });
+                }
+            }
+        }
+        <span class='ident'>matches</span>
+    }
+
+    <span class='attribute'>#[<span class='ident'>test</span>]</span>
+    <span class='kw'>fn</span> <span class='ident'>qc_ac_equals_naive</span>() {
+        <span class='kw'>fn</span> <span class='ident'>prop</span>(<span class='ident'>needles</span>: <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>SmallAscii</span><span class='op'>&gt;</span>, <span class='ident'>haystack</span>: <span class='ident'>BiasAscii</span>) <span class='op'>-&gt;</span> <span class='ident'>bool</span> {
+            <span class='kw'>let</span> <span class='ident'>aut_matches</span> <span class='op'>=</span> <span class='ident'>aut_findo</span>(<span class='kw-2'>&amp;</span><span class='ident'>needles</span>, <span class='kw-2'>&amp;</span><span class='ident'>haystack</span>.<span class='number'>0</span>);
+            <span class='kw'>let</span> <span class='ident'>naive_matches</span> <span class='op'>=</span> <span class='ident'>naive_find</span>(<span class='kw-2'>&amp;</span><span class='ident'>needles</span>, <span class='kw-2'>&amp;</span><span class='ident'>haystack</span>.<span class='number'>0</span>);
+            <span class='comment'>// Ordering isn&#39;t always the same. I don&#39;t think we care, so do</span>
+            <span class='comment'>// an unordered comparison.</span>
+            <span class='kw'>let</span> <span class='ident'>aset</span>: <span class='ident'>HashSet</span><span class='op'>&lt;</span><span class='ident'>Match</span><span class='op'>&gt;</span> <span class='op'>=</span> <span class='ident'>aut_matches</span>.<span class='ident'>iter</span>().<span class='ident'>cloned</span>().<span class='ident'>collect</span>();
+            <span class='kw'>let</span> <span class='ident'>nset</span>: <span class='ident'>HashSet</span><span class='op'>&lt;</span><span class='ident'>Match</span><span class='op'>&gt;</span> <span class='op'>=</span> <span class='ident'>naive_matches</span>.<span class='ident'>iter</span>().<span class='ident'>cloned</span>().<span class='ident'>collect</span>();
+            <span class='ident'>aset</span> <span class='op'>==</span> <span class='ident'>nset</span>
+        }
+        <span class='ident'>quickcheck</span>(<span class='ident'>prop</span> <span class='kw'>as</span> <span class='kw'>fn</span>(<span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>SmallAscii</span><span class='op'>&gt;</span>, <span class='ident'>BiasAscii</span>) <span class='op'>-&gt;</span> <span class='ident'>bool</span>);
+    }
+}
+</pre>
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author		2015-06-29 20:16:15 +0000
committer		2015-06-29 20:16:15 +0000
commit	64106c4d3d4ddba8c7bc2af75376e6d3d3d75601 (patch)
tree	8c64d6e8be006486d975a651505fbbde61365cd6 /src/aho_corasick
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