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- <h3 class="section-header">Methods</h3>
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-
- <li><a href="#method-i-porter2_ends_with_short_syllable%3F">#porter2_ends_with_short_syllable?</a></li>
-
- <li><a href="#method-i-porter2_is_short_word%3F">#porter2_is_short_word?</a></li>
-
- <li><a href="#method-i-porter2_postprocess">#porter2_postprocess</a></li>
-
- <li><a href="#method-i-porter2_preprocess">#porter2_preprocess</a></li>
-
- <li><a href="#method-i-porter2_r1">#porter2_r1</a></li>
-
- <li><a href="#method-i-porter2_r2">#porter2_r2</a></li>
-
- <li><a href="#method-i-porter2_stem">#porter2_stem</a></li>
-
- <li><a href="#method-i-porter2_stem_verbose">#porter2_stem_verbose</a></li>
-
- <li><a href="#method-i-porter2_step0">#porter2_step0</a></li>
-
- <li><a href="#method-i-porter2_step1a">#porter2_step1a</a></li>
-
- <li><a href="#method-i-porter2_step1b">#porter2_step1b</a></li>
-
- <li><a href="#method-i-porter2_step1c">#porter2_step1c</a></li>
-
- <li><a href="#method-i-porter2_step2">#porter2_step2</a></li>
-
- <li><a href="#method-i-porter2_step3">#porter2_step3</a></li>
-
- <li><a href="#method-i-porter2_step4">#porter2_step4</a></li>
-
- <li><a href="#method-i-porter2_step5">#porter2_step5</a></li>
-
- <li><a href="#method-i-porter2_tidy">#porter2_tidy</a></li>
-
- <li><a href="#method-i-stem">#stem</a></li>
-
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- <li><a href="./Porter2.html">Porter2</a></li>
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-
- <div id="documentation">
- <h1 class="class">String</h1>
-
- <div id="description">
- <p>
-Implementation of the Porter 2 stemmer. <a
-href="String.html#method-i-porter2_stem">String#porter2_stem</a> is the
-main stemming procedure.
-</p>
-
- </div>
-
- <!-- Constants -->
-
-
- <!-- Attributes -->
-
-
- <!-- Methods -->
-
- <div id="public-instance-method-details" class="method-section section">
- <h3 class="section-header">Public Instance Methods</h3>
-
-
- <div id="porter-ends-with-short-syllable--method" class="method-detail ">
- <a name="method-i-porter2_ends_with_short_syllable%3F"></a>
-
- <div class="method-heading">
-
- <span class="method-name">porter2_ends_with_short_syllable?</span><span
- class="method-args">()</span>
- <span class="method-click-advice">click to toggle source</span>
-
- </div>
-
- <div class="method-description">
-
- <p>
-Returns true if the word ends with a short syllable
-</p>
-
-
-
- <div class="method-source-code"
- id="porter-ends-with-short-syllable--source">
-<pre>
- <span class="ruby-comment cmt"># File lib/porter2_implementation.rb, line 59</span>
-59: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">porter2_ends_with_short_syllable?</span>
-60: <span class="ruby-keyword kw">self</span> <span class="ruby-operator">=~</span> <span class="ruby-node">/#{Porter2::SHORT_SYLLABLE}$/</span> <span class="ruby-operator">?</span> <span class="ruby-keyword kw">true</span> <span class="ruby-operator">:</span> <span class="ruby-keyword kw">false</span>
-61: <span class="ruby-keyword kw">end</span></pre>
- </div>
-
- </div>
-
-
-
-
- </div>
-
-
- <div id="porter-is-short-word--method" class="method-detail ">
- <a name="method-i-porter2_is_short_word%3F"></a>
-
- <div class="method-heading">
-
- <span class="method-name">porter2_is_short_word?</span><span
- class="method-args">()</span>
- <span class="method-click-advice">click to toggle source</span>
-
- </div>
-
- <div class="method-description">
-
- <p>
-A word is short if it ends in a short syllable, and R1 is null
-</p>
-
-
-
- <div class="method-source-code"
- id="porter-is-short-word--source">
-<pre>
- <span class="ruby-comment cmt"># File lib/porter2_implementation.rb, line 65</span>
-65: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">porter2_is_short_word?</span>
-66: <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">porter2_ends_with_short_syllable?</span> <span class="ruby-keyword kw">and</span> <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">porter2_r1</span>.<span class="ruby-identifier">empty?</span>
-67: <span class="ruby-keyword kw">end</span></pre>
- </div>
-
- </div>
-
-
-
-
- </div>
-
-
- <div id="porter-postprocess-method" class="method-detail ">
- <a name="method-i-porter2_postprocess"></a>
-
- <div class="method-heading">
-
- <span class="method-name">porter2_postprocess</span><span
- class="method-args">()</span>
- <span class="method-click-advice">click to toggle source</span>
-
- </div>
-
- <div class="method-description">
-
- <p>
-Turn all Y letters into y
-</p>
-
-
-
- <div class="method-source-code"
- id="porter-postprocess-source">
-<pre>
- <span class="ruby-comment cmt"># File lib/porter2_implementation.rb, line 261</span>
-261: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">porter2_postprocess</span>
-262: <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">gsub</span>(<span class="ruby-regexp re">/Y/</span>, <span class="ruby-value str">'y'</span>)
-263: <span class="ruby-keyword kw">end</span></pre>
- </div>
-
- </div>
-
-
-
-
- </div>
-
-
- <div id="porter-preprocess-method" class="method-detail ">
- <a name="method-i-porter2_preprocess"></a>
-
- <div class="method-heading">
-
- <span class="method-name">porter2_preprocess</span><span
- class="method-args">()</span>
- <span class="method-click-advice">click to toggle source</span>
-
- </div>
-
- <div class="method-description">
-
- <p>
-Preprocess the word. Remove any initial ’, if present. Then, set
-initial y, or y after a vowel, to Y
-</p>
-<p>
-(The comment to ‘establish the regions R1 and R2’ in the
-original description is an implementation optimisation that identifies
-where the regions start. As no modifications are made to the word that
-affect those positions, you may want to cache them now. This implementation
-doesn’t do that.)
-</p>
-
-
-
- <div class="method-source-code"
- id="porter-preprocess-source">
-<pre>
- <span class="ruby-comment cmt"># File lib/porter2_implementation.rb, line 25</span>
-25: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">porter2_preprocess</span>
-26: <span class="ruby-identifier">w</span> = <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">dup</span>
-27:
-28: <span class="ruby-comment cmt"># remove any initial apostrophe</span>
-29: <span class="ruby-identifier">w</span>.<span class="ruby-identifier">gsub!</span>(<span class="ruby-regexp re">/^'*(.)/</span>, <span class="ruby-value str">'\1'</span>)
-30:
-31: <span class="ruby-comment cmt"># set initial y, or y after a vowel, to Y</span>
-32: <span class="ruby-identifier">w</span>.<span class="ruby-identifier">gsub!</span>(<span class="ruby-regexp re">/^y/</span>, <span class="ruby-value str">"Y"</span>)
-33: <span class="ruby-identifier">w</span>.<span class="ruby-identifier">gsub!</span>(<span class="ruby-node">/(#{Porter2::V})y/</span>, <span class="ruby-value str">'\1Y'</span>)
-34:
-35: <span class="ruby-identifier">w</span>
-36: <span class="ruby-keyword kw">end</span></pre>
- </div>
-
- </div>
-
-
-
-
- </div>
-
-
- <div id="porter-r--method" class="method-detail ">
- <a name="method-i-porter2_r1"></a>
-
- <div class="method-heading">
-
- <span class="method-name">porter2_r1</span><span
- class="method-args">()</span>
- <span class="method-click-advice">click to toggle source</span>
-
- </div>
-
- <div class="method-description">
-
- <p>
-R1 is the portion of the word after the first non-vowel after the first
-vowel (with words beginning ‘gener-’, ‘commun-’,
-and ‘arsen-’ treated as special cases
-</p>
-
-
-
- <div class="method-source-code"
- id="porter-r--source">
-<pre>
- <span class="ruby-comment cmt"># File lib/porter2_implementation.rb, line 41</span>
-41: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">porter2_r1</span>
-42: <span class="ruby-keyword kw">if</span> <span class="ruby-keyword kw">self</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/^(gener|commun|arsen)(?<r1>.*)/</span>
-43: <span class="ruby-constant">Regexp</span>.<span class="ruby-identifier">last_match</span>(<span class="ruby-value">:r1</span>)
-44: <span class="ruby-keyword kw">else</span>
-45: <span class="ruby-keyword kw">self</span> <span class="ruby-operator">=~</span> <span class="ruby-node">/#{Porter2::V}#{Porter2::C}(?<r1>.*)$/</span>
-46: <span class="ruby-constant">Regexp</span>.<span class="ruby-identifier">last_match</span>(<span class="ruby-value">:r1</span>) <span class="ruby-operator">||</span> <span class="ruby-value str">""</span>
-47: <span class="ruby-keyword kw">end</span>
-48: <span class="ruby-keyword kw">end</span></pre>
- </div>
-
- </div>
-
-
-
-
- </div>
-
-
- <div id="porter-r--method" class="method-detail ">
- <a name="method-i-porter2_r2"></a>
-
- <div class="method-heading">
-
- <span class="method-name">porter2_r2</span><span
- class="method-args">()</span>
- <span class="method-click-advice">click to toggle source</span>
-
- </div>
-
- <div class="method-description">
-
- <p>
-R2 is the portion of R1 (<a
-href="String.html#method-i-porter2_r1">porter2_r1</a>) after the first
-non-vowel after the first vowel
-</p>
-
-
-
- <div class="method-source-code"
- id="porter-r--source">
-<pre>
- <span class="ruby-comment cmt"># File lib/porter2_implementation.rb, line 52</span>
-52: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">porter2_r2</span>
-53: <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">porter2_r1</span> <span class="ruby-operator">=~</span> <span class="ruby-node">/#{Porter2::V}#{Porter2::C}(?<r2>.*)$/</span>
-54: <span class="ruby-constant">Regexp</span>.<span class="ruby-identifier">last_match</span>(<span class="ruby-value">:r2</span>) <span class="ruby-operator">||</span> <span class="ruby-value str">""</span>
-55: <span class="ruby-keyword kw">end</span></pre>
- </div>
-
- </div>
-
-
-
-
- </div>
-
-
- <div id="porter-stem-method" class="method-detail ">
- <a name="method-i-porter2_stem"></a>
-
- <div class="method-heading">
-
- <span class="method-name">porter2_stem</span><span
- class="method-args">(gb_english = false)</span>
- <span class="method-click-advice">click to toggle source</span>
-
- </div>
-
- <div class="method-description">
-
- <p>
-Perform the stemming procedure. If <tt>gb_english</tt> is true, treat
-’-ise’ and similar suffixes as ’-ize’ in American
-English.
-</p>
-
-
-
- <div class="method-source-code"
- id="porter-stem-source">
-<pre>
- <span class="ruby-comment cmt"># File lib/porter2_implementation.rb, line 269</span>
-269: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">porter2_stem</span>(<span class="ruby-identifier">gb_english</span> = <span class="ruby-keyword kw">false</span>)
-270: <span class="ruby-identifier">preword</span> = <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">porter2_tidy</span>
-271: <span class="ruby-keyword kw">return</span> <span class="ruby-identifier">preword</span> <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">preword</span>.<span class="ruby-identifier">length</span> <span class="ruby-operator"><=</span> <span class="ruby-value">2</span>
-272:
-273: <span class="ruby-identifier">word</span> = <span class="ruby-identifier">preword</span>.<span class="ruby-identifier">porter2_preprocess</span>
-274:
-275: <span class="ruby-keyword kw">if</span> <span class="ruby-constant">Porter2</span><span class="ruby-operator">::</span><span class="ruby-constant">SPECIAL_CASES</span>.<span class="ruby-identifier">has_key?</span> <span class="ruby-identifier">word</span>
-276: <span class="ruby-constant">Porter2</span><span class="ruby-operator">::</span><span class="ruby-constant">SPECIAL_CASES</span>[<span class="ruby-identifier">word</span>]
-277: <span class="ruby-keyword kw">else</span>
-278: <span class="ruby-identifier">w1a</span> = <span class="ruby-identifier">word</span>.<span class="ruby-identifier">porter2_step0</span>.<span class="ruby-identifier">porter2_step1a</span>
-279: <span class="ruby-keyword kw">if</span> <span class="ruby-constant">Porter2</span><span class="ruby-operator">::</span><span class="ruby-constant">STEP_1A_SPECIAL_CASES</span>.<span class="ruby-identifier">include?</span> <span class="ruby-identifier">w1a</span>
-280: <span class="ruby-identifier">w1a</span>
-281: <span class="ruby-keyword kw">else</span>
-282: <span class="ruby-identifier">w1a</span>.<span class="ruby-identifier">porter2_step1b</span>(<span class="ruby-identifier">gb_english</span>).<span class="ruby-identifier">porter2_step1c</span>.<span class="ruby-identifier">porter2_step2</span>(<span class="ruby-identifier">gb_english</span>).<span class="ruby-identifier">porter2_step3</span>(<span class="ruby-identifier">gb_english</span>).<span class="ruby-identifier">porter2_step4</span>(<span class="ruby-identifier">gb_english</span>).<span class="ruby-identifier">porter2_step5</span>.<span class="ruby-identifier">porter2_postprocess</span>
-283: <span class="ruby-keyword kw">end</span>
-284: <span class="ruby-keyword kw">end</span>
-285: <span class="ruby-keyword kw">end</span></pre>
- </div>
-
- </div>
-
-
- <div class="aliases">
- Also aliased as: <a href="String.html#method-i-stem">stem</a>
- </div>
-
-
-
- </div>
-
-
- <div id="porter-stem-verbose-method" class="method-detail ">
- <a name="method-i-porter2_stem_verbose"></a>
-
- <div class="method-heading">
-
- <span class="method-name">porter2_stem_verbose</span><span
- class="method-args">(gb_english = false)</span>
- <span class="method-click-advice">click to toggle source</span>
-
- </div>
-
- <div class="method-description">
-
- <p>
-A verbose version of <a
-href="String.html#method-i-porter2_stem">porter2_stem</a> that prints the
-output of each stage to STDOUT
-</p>
-
-
-
- <div class="method-source-code"
- id="porter-stem-verbose-source">
-<pre>
- <span class="ruby-comment cmt"># File lib/porter2_implementation.rb, line 288</span>
-288: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">porter2_stem_verbose</span>(<span class="ruby-identifier">gb_english</span> = <span class="ruby-keyword kw">false</span>)
-289: <span class="ruby-identifier">preword</span> = <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">porter2_tidy</span>
-290: <span class="ruby-identifier">puts</span> <span class="ruby-node">"Preword: #{preword}"</span>
-291: <span class="ruby-keyword kw">return</span> <span class="ruby-identifier">preword</span> <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">preword</span>.<span class="ruby-identifier">length</span> <span class="ruby-operator"><=</span> <span class="ruby-value">2</span>
-292:
-293: <span class="ruby-identifier">word</span> = <span class="ruby-identifier">preword</span>.<span class="ruby-identifier">porter2_preprocess</span>
-294: <span class="ruby-identifier">puts</span> <span class="ruby-node">"Preprocessed: #{word}"</span>
-295:
-296: <span class="ruby-keyword kw">if</span> <span class="ruby-constant">Porter2</span><span class="ruby-operator">::</span><span class="ruby-constant">SPECIAL_CASES</span>.<span class="ruby-identifier">has_key?</span> <span class="ruby-identifier">word</span>
-297: <span class="ruby-identifier">puts</span> <span class="ruby-node">"Returning #{word} as special case #{Porter2::SPECIAL_CASES[word]}"</span>
-298: <span class="ruby-constant">Porter2</span><span class="ruby-operator">::</span><span class="ruby-constant">SPECIAL_CASES</span>[<span class="ruby-identifier">word</span>]
-299: <span class="ruby-keyword kw">else</span>
-300: <span class="ruby-identifier">r1</span> = <span class="ruby-identifier">word</span>.<span class="ruby-identifier">porter2_r1</span>
-301: <span class="ruby-identifier">r2</span> = <span class="ruby-identifier">word</span>.<span class="ruby-identifier">porter2_r2</span>
-302: <span class="ruby-identifier">puts</span> <span class="ruby-node">"R1 = #{r1}, R2 = #{r2}"</span>
-303:
-304: <span class="ruby-identifier">w0</span> = <span class="ruby-identifier">word</span>.<span class="ruby-identifier">porter2_step0</span> ; <span class="ruby-identifier">puts</span> <span class="ruby-node">"After step 0: #{w0} (R1 = #{w0.porter2_r1}, R2 = #{w0.porter2_r2})"</span>
-305: <span class="ruby-identifier">w1a</span> = <span class="ruby-identifier">w0</span>.<span class="ruby-identifier">porter2_step1a</span> ; <span class="ruby-identifier">puts</span> <span class="ruby-node">"After step 1a: #{w1a} (R1 = #{w1a.porter2_r1}, R2 = #{w1a.porter2_r2})"</span>
-306:
-307: <span class="ruby-keyword kw">if</span> <span class="ruby-constant">Porter2</span><span class="ruby-operator">::</span><span class="ruby-constant">STEP_1A_SPECIAL_CASES</span>.<span class="ruby-identifier">include?</span> <span class="ruby-identifier">w1a</span>
-308: <span class="ruby-identifier">puts</span> <span class="ruby-node">"Returning #{w1a} as 1a special case"</span>
-309: <span class="ruby-identifier">w1a</span>
-310: <span class="ruby-keyword kw">else</span>
-311: <span class="ruby-identifier">w1b</span> = <span class="ruby-identifier">w1a</span>.<span class="ruby-identifier">porter2_step1b</span>(<span class="ruby-identifier">gb_english</span>) ; <span class="ruby-identifier">puts</span> <span class="ruby-node">"After step 1b: #{w1b} (R1 = #{w1b.porter2_r1}, R2 = #{w1b.porter2_r2})"</span>
-312: <span class="ruby-identifier">w1c</span> = <span class="ruby-identifier">w1b</span>.<span class="ruby-identifier">porter2_step1c</span> ; <span class="ruby-identifier">puts</span> <span class="ruby-node">"After step 1c: #{w1c} (R1 = #{w1c.porter2_r1}, R2 = #{w1c.porter2_r2})"</span>
-313: <span class="ruby-identifier">w2</span> = <span class="ruby-identifier">w1c</span>.<span class="ruby-identifier">porter2_step2</span>(<span class="ruby-identifier">gb_english</span>) ; <span class="ruby-identifier">puts</span> <span class="ruby-node">"After step 2: #{w2} (R1 = #{w2.porter2_r1}, R2 = #{w2.porter2_r2})"</span>
-314: <span class="ruby-identifier">w3</span> = <span class="ruby-identifier">w2</span>.<span class="ruby-identifier">porter2_step3</span>(<span class="ruby-identifier">gb_english</span>) ; <span class="ruby-identifier">puts</span> <span class="ruby-node">"After step 3: #{w3} (R1 = #{w3.porter2_r1}, R2 = #{w3.porter2_r2})"</span>
-315: <span class="ruby-identifier">w4</span> = <span class="ruby-identifier">w3</span>.<span class="ruby-identifier">porter2_step4</span>(<span class="ruby-identifier">gb_english</span>) ; <span class="ruby-identifier">puts</span> <span class="ruby-node">"After step 4: #{w4} (R1 = #{w4.porter2_r1}, R2 = #{w4.porter2_r2})"</span>
-316: <span class="ruby-identifier">w5</span> = <span class="ruby-identifier">w4</span>.<span class="ruby-identifier">porter2_step5</span> ; <span class="ruby-identifier">puts</span> <span class="ruby-node">"After step 5: #{w5}"</span>
-317: <span class="ruby-identifier">wpost</span> = <span class="ruby-identifier">w5</span>.<span class="ruby-identifier">porter2_postprocess</span> ; <span class="ruby-identifier">puts</span> <span class="ruby-node">"After postprocess: #{wpost}"</span>
-318: <span class="ruby-identifier">wpost</span>
-319: <span class="ruby-keyword kw">end</span>
-320: <span class="ruby-keyword kw">end</span>
-321: <span class="ruby-keyword kw">end</span></pre>
- </div>
-
- </div>
-
-
-
-
- </div>
-
-
- <div id="porter-step--method" class="method-detail ">
- <a name="method-i-porter2_step0"></a>
-
- <div class="method-heading">
-
- <span class="method-name">porter2_step0</span><span
- class="method-args">()</span>
- <span class="method-click-advice">click to toggle source</span>
-
- </div>
-
- <div class="method-description">
-
- <p>
-Search for the longest among the suffixes,
-</p>
-<ul>
-<li><p>
-‘
-</p>
-</li>
-<li><p>
-’s
-</p>
-</li>
-<li><p>
-’s’
-</p>
-</li>
-</ul>
-<p>
-and remove if found.
-</p>
-
-
-
- <div class="method-source-code"
- id="porter-step--source">
-<pre>
- <span class="ruby-comment cmt"># File lib/porter2_implementation.rb, line 75</span>
-75: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">porter2_step0</span>
-76: <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">sub!</span>(<span class="ruby-regexp re">/(.)('s'|'s|')$/</span>, <span class="ruby-value str">'\1'</span>) <span class="ruby-operator">||</span> <span class="ruby-keyword kw">self</span>
-77: <span class="ruby-keyword kw">end</span></pre>
- </div>
-
- </div>
-
-
-
-
- </div>
-
-
- <div id="porter-step-a-method" class="method-detail ">
- <a name="method-i-porter2_step1a"></a>
-
- <div class="method-heading">
-
- <span class="method-name">porter2_step1a</span><span
- class="method-args">()</span>
- <span class="method-click-advice">click to toggle source</span>
-
- </div>
-
- <div class="method-description">
-
- <p>
-Search for the longest among the following suffixes, and perform the action
-indicated.
-</p>
-<table>
-<tr><td valign="top">sses</td><td><p>
-replace by ss
-</p>
-</td></tr>
-<tr><td valign="top">ied, ies</td><td><p>
-replace by i if preceded by more than one letter, otherwise by ie
-</p>
-</td></tr>
-<tr><td valign="top">s</td><td><p>
-delete if the preceding word part contains a vowel not immediately before
-the s
-</p>
-</td></tr>
-<tr><td valign="top">us, ss</td><td><p>
-do nothing
-</p>
-</td></tr>
-</table>
-
-
-
- <div class="method-source-code"
- id="porter-step-a-source">
-<pre>
- <span class="ruby-comment cmt"># File lib/porter2_implementation.rb, line 85</span>
- 85: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">porter2_step1a</span>
- 86: <span class="ruby-keyword kw">if</span> <span class="ruby-keyword kw">self</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/sses$/</span>
- 87: <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">sub</span>(<span class="ruby-regexp re">/sses$/</span>, <span class="ruby-value str">'ss'</span>)
- 88: <span class="ruby-keyword kw">elsif</span> <span class="ruby-keyword kw">self</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/..(ied|ies)$/</span>
- 89: <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">sub</span>(<span class="ruby-regexp re">/(ied|ies)$/</span>, <span class="ruby-value str">'i'</span>)
- 90: <span class="ruby-keyword kw">elsif</span> <span class="ruby-keyword kw">self</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/(ied|ies)$/</span>
- 91: <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">sub</span>(<span class="ruby-regexp re">/(ied|ies)$/</span>, <span class="ruby-value str">'ie'</span>)
- 92: <span class="ruby-keyword kw">elsif</span> <span class="ruby-keyword kw">self</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/(us|ss)$/</span>
- 93: <span class="ruby-keyword kw">self</span>
- 94: <span class="ruby-keyword kw">elsif</span> <span class="ruby-keyword kw">self</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/s$/</span>
- 95: <span class="ruby-keyword kw">if</span> <span class="ruby-keyword kw">self</span> <span class="ruby-operator">=~</span> <span class="ruby-node">/(#{Porter2::V}.+)s$/</span>
- 96: <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">sub</span>(<span class="ruby-regexp re">/s$/</span>, <span class="ruby-value str">''</span>)
- 97: <span class="ruby-keyword kw">else</span>
- 98: <span class="ruby-keyword kw">self</span>
- 99: <span class="ruby-keyword kw">end</span>
-100: <span class="ruby-keyword kw">else</span>
-101: <span class="ruby-keyword kw">self</span>
-102: <span class="ruby-keyword kw">end</span>
-103: <span class="ruby-keyword kw">end</span></pre>
- </div>
-
- </div>
-
-
-
-
- </div>
-
-
- <div id="porter-step-b-method" class="method-detail ">
- <a name="method-i-porter2_step1b"></a>
-
- <div class="method-heading">
-
- <span class="method-name">porter2_step1b</span><span
- class="method-args">(gb_english = false)</span>
- <span class="method-click-advice">click to toggle source</span>
-
- </div>
-
- <div class="method-description">
-
- <p>
-Search for the longest among the following suffixes, and perform the action
-indicated.
-</p>
-<table>
-<tr><td valign="top">eed, eedly</td><td><p>
-replace by ee if the suffix is also in R1
-</p>
-</td></tr>
-<tr><td valign="top">ed, edly, ing, ingly</td><td><p>
-delete if the preceding word part contains a vowel and, after the
-deletion:
-</p>
-<ul>
-<li><p>
-if the word ends at, bl or iz: add e, or
-</p>
-</li>
-</ul>
-<ul>
-<li><p>
-if the word ends with a double: remove the last letter, or
-</p>
-</li>
-</ul>
-<ul>
-<li><p>
-if the word is short: add e
-</p>
-</li>
-</ul>
-</td></tr>
-</table>
-<p>
-(If gb_english is <tt>true</tt>, treat the ‘is’ suffix as
-‘iz’ above.)
-</p>
-
-
-
- <div class="method-source-code"
- id="porter-step-b-source">
-<pre>
- <span class="ruby-comment cmt"># File lib/porter2_implementation.rb, line 115</span>
-115: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">porter2_step1b</span>(<span class="ruby-identifier">gb_english</span> = <span class="ruby-keyword kw">false</span>)
-116: <span class="ruby-keyword kw">if</span> <span class="ruby-keyword kw">self</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/(eed|eedly)$/</span>
-117: <span class="ruby-keyword kw">if</span> <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">porter2_r1</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/(eed|eedly)$/</span>
-118: <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">sub</span>(<span class="ruby-regexp re">/(eed|eedly)$/</span>, <span class="ruby-value str">'ee'</span>)
-119: <span class="ruby-keyword kw">else</span>
-120: <span class="ruby-keyword kw">self</span>
-121: <span class="ruby-keyword kw">end</span>
-122: <span class="ruby-keyword kw">else</span>
-123: <span class="ruby-identifier">w</span> = <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">dup</span>
-124: <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">w</span> <span class="ruby-operator">=~</span> <span class="ruby-node">/#{Porter2::V}.*(ed|edly|ing|ingly)$/</span>
-125: <span class="ruby-identifier">w</span>.<span class="ruby-identifier">sub!</span>(<span class="ruby-regexp re">/(ed|edly|ing|ingly)$/</span>, <span class="ruby-value str">''</span>)
-126: <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">w</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/(at|lb|iz)$/</span>
-127: <span class="ruby-identifier">w</span> <span class="ruby-operator">+=</span> <span class="ruby-value str">'e'</span>
-128: <span class="ruby-keyword kw">elsif</span> <span class="ruby-identifier">w</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/is$/</span> <span class="ruby-keyword kw">and</span> <span class="ruby-identifier">gb_english</span>
-129: <span class="ruby-identifier">w</span> <span class="ruby-operator">+=</span> <span class="ruby-value str">'e'</span>
-130: <span class="ruby-keyword kw">elsif</span> <span class="ruby-identifier">w</span> <span class="ruby-operator">=~</span> <span class="ruby-node">/#{Porter2::Double}$/</span>
-131: <span class="ruby-identifier">w</span>.<span class="ruby-identifier">chop!</span>
-132: <span class="ruby-keyword kw">elsif</span> <span class="ruby-identifier">w</span>.<span class="ruby-identifier">porter2_is_short_word?</span>
-133: <span class="ruby-identifier">w</span> <span class="ruby-operator">+=</span> <span class="ruby-value str">'e'</span>
-134: <span class="ruby-keyword kw">end</span>
-135: <span class="ruby-keyword kw">end</span>
-136: <span class="ruby-identifier">w</span>
-137: <span class="ruby-keyword kw">end</span>
-138: <span class="ruby-keyword kw">end</span></pre>
- </div>
-
- </div>
-
-
-
-
- </div>
-
-
- <div id="porter-step-c-method" class="method-detail ">
- <a name="method-i-porter2_step1c"></a>
-
- <div class="method-heading">
-
- <span class="method-name">porter2_step1c</span><span
- class="method-args">()</span>
- <span class="method-click-advice">click to toggle source</span>
-
- </div>
-
- <div class="method-description">
-
- <p>
-Replace a suffix of y or Y by i if it is preceded by a non-vowel which is
-not the first letter of the word.
-</p>
-
-
-
- <div class="method-source-code"
- id="porter-step-c-source">
-<pre>
- <span class="ruby-comment cmt"># File lib/porter2_implementation.rb, line 143</span>
-143: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">porter2_step1c</span>
-144: <span class="ruby-keyword kw">if</span> <span class="ruby-keyword kw">self</span> <span class="ruby-operator">=~</span> <span class="ruby-node">/.+#{Porter2::C}(y|Y)$/</span>
-145: <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">sub</span>(<span class="ruby-regexp re">/(y|Y)$/</span>, <span class="ruby-value str">'i'</span>)
-146: <span class="ruby-keyword kw">else</span>
-147: <span class="ruby-keyword kw">self</span>
-148: <span class="ruby-keyword kw">end</span>
-149: <span class="ruby-keyword kw">end</span></pre>
- </div>
-
- </div>
-
-
-
-
- </div>
-
-
- <div id="porter-step--method" class="method-detail ">
- <a name="method-i-porter2_step2"></a>
-
- <div class="method-heading">
-
- <span class="method-name">porter2_step2</span><span
- class="method-args">(gb_english = false)</span>
- <span class="method-click-advice">click to toggle source</span>
-
- </div>
-
- <div class="method-description">
-
- <p>
-Search for the longest among the suffixes listed in the keys of
-Porter2::STEP_2_MAPS. If one is found and that suffix occurs in R1,
-replace it with the value found in STEP_2_MAPS.
-</p>
-<p>
-(Suffixes ‘ogi’ and ‘li’ are treated as special
-cases in the procedure.)
-</p>
-<p>
-(If gb_english is <tt>true</tt>, replace the ‘iser’ and
-‘isation’ suffixes with ‘ise’, similarly to how
-‘izer’ and ‘ization’ are treated.)
-</p>
-
-
-
- <div class="method-source-code"
- id="porter-step--source">
-<pre>
- <span class="ruby-comment cmt"># File lib/porter2_implementation.rb, line 160</span>
-160: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">porter2_step2</span>(<span class="ruby-identifier">gb_english</span> = <span class="ruby-keyword kw">false</span>)
-161: <span class="ruby-identifier">r1</span> = <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">porter2_r1</span>
-162: <span class="ruby-identifier">s2m</span> = <span class="ruby-constant">Porter2</span><span class="ruby-operator">::</span><span class="ruby-constant">STEP_2_MAPS</span>.<span class="ruby-identifier">dup</span>
-163: <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">gb_english</span>
-164: <span class="ruby-identifier">s2m</span>[<span class="ruby-value str">"iser"</span>] = <span class="ruby-value str">"ise"</span>
-165: <span class="ruby-identifier">s2m</span>[<span class="ruby-value str">"isation"</span>] = <span class="ruby-value str">"ise"</span>
-166: <span class="ruby-keyword kw">end</span>
-167: <span class="ruby-identifier">step_2_re</span> = <span class="ruby-constant">Regexp</span>.<span class="ruby-identifier">union</span>(<span class="ruby-identifier">s2m</span>.<span class="ruby-identifier">keys</span>.<span class="ruby-identifier">map</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">r</span><span class="ruby-operator">|</span> <span class="ruby-constant">Regexp</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">r</span> <span class="ruby-operator">+</span> <span class="ruby-value str">"$"</span>)})
-168: <span class="ruby-keyword kw">if</span> <span class="ruby-keyword kw">self</span> <span class="ruby-operator">=~</span> <span class="ruby-identifier">step_2_re</span>
-169: <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">r1</span> <span class="ruby-operator">=~</span> <span class="ruby-node">/#{$&}$/</span>
-170: <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">sub</span>(<span class="ruby-node">/#{$&}$/</span>, <span class="ruby-identifier">s2m</span>[<span class="ruby-node">$&</span>])
-171: <span class="ruby-keyword kw">else</span>
-172: <span class="ruby-keyword kw">self</span>
-173: <span class="ruby-keyword kw">end</span>
-174: <span class="ruby-keyword kw">elsif</span> <span class="ruby-identifier">r1</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/li$/</span> <span class="ruby-keyword kw">and</span> <span class="ruby-keyword kw">self</span> <span class="ruby-operator">=~</span> <span class="ruby-node">/(#{Porter2::Valid_LI})li$/</span>
-175: <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">sub</span>(<span class="ruby-regexp re">/li$/</span>, <span class="ruby-value str">''</span>)
-176: <span class="ruby-keyword kw">elsif</span> <span class="ruby-identifier">r1</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/ogi$/</span> <span class="ruby-keyword kw">and</span> <span class="ruby-keyword kw">self</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/logi$/</span>
-177: <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">sub</span>(<span class="ruby-regexp re">/ogi$/</span>, <span class="ruby-value str">'og'</span>)
-178: <span class="ruby-keyword kw">else</span>
-179: <span class="ruby-keyword kw">self</span>
-180: <span class="ruby-keyword kw">end</span>
-181: <span class="ruby-keyword kw">end</span></pre>
- </div>
-
- </div>
-
-
-
-
- </div>
-
-
- <div id="porter-step--method" class="method-detail ">
- <a name="method-i-porter2_step3"></a>
-
- <div class="method-heading">
-
- <span class="method-name">porter2_step3</span><span
- class="method-args">(gb_english = false)</span>
- <span class="method-click-advice">click to toggle source</span>
-
- </div>
-
- <div class="method-description">
-
- <p>
-Search for the longest among the suffixes listed in the keys of
-Porter2::STEP_3_MAPS. If one is found and that suffix occurs in R1,
-replace it with the value found in STEP_3_MAPS.
-</p>
-<p>
-(Suffix ‘ative’ is treated as a special case in the procedure.)
-</p>
-<p>
-(If gb_english is <tt>true</tt>, replace the ‘alise’ suffix
-with ‘al’, similarly to how ‘alize’ is treated.)
-</p>
-
-
-
- <div class="method-source-code"
- id="porter-step--source">
-<pre>
- <span class="ruby-comment cmt"># File lib/porter2_implementation.rb, line 192</span>
-192: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">porter2_step3</span>(<span class="ruby-identifier">gb_english</span> = <span class="ruby-keyword kw">false</span>)
-193: <span class="ruby-keyword kw">if</span> <span class="ruby-keyword kw">self</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/ative$/</span> <span class="ruby-keyword kw">and</span> <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">porter2_r2</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/ative$/</span>
-194: <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">sub</span>(<span class="ruby-regexp re">/ative$/</span>, <span class="ruby-value str">''</span>)
-195: <span class="ruby-keyword kw">else</span>
-196: <span class="ruby-identifier">s3m</span> = <span class="ruby-constant">Porter2</span><span class="ruby-operator">::</span><span class="ruby-constant">STEP_3_MAPS</span>.<span class="ruby-identifier">dup</span>
-197: <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">gb_english</span>
-198: <span class="ruby-identifier">s3m</span>[<span class="ruby-value str">"alise"</span>] = <span class="ruby-value str">"al"</span>
-199: <span class="ruby-keyword kw">end</span>
-200: <span class="ruby-identifier">step_3_re</span> = <span class="ruby-constant">Regexp</span>.<span class="ruby-identifier">union</span>(<span class="ruby-identifier">s3m</span>.<span class="ruby-identifier">keys</span>.<span class="ruby-identifier">map</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">r</span><span class="ruby-operator">|</span> <span class="ruby-constant">Regexp</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">r</span> <span class="ruby-operator">+</span> <span class="ruby-value str">"$"</span>)})
-201: <span class="ruby-identifier">r1</span> = <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">porter2_r1</span>
-202: <span class="ruby-keyword kw">if</span> <span class="ruby-keyword kw">self</span> <span class="ruby-operator">=~</span> <span class="ruby-identifier">step_3_re</span> <span class="ruby-keyword kw">and</span> <span class="ruby-identifier">r1</span> <span class="ruby-operator">=~</span> <span class="ruby-node">/#{$&}$/</span>
-203: <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">sub</span>(<span class="ruby-node">/#{$&}$/</span>, <span class="ruby-identifier">s3m</span>[<span class="ruby-node">$&</span>])
-204: <span class="ruby-keyword kw">else</span>
-205: <span class="ruby-keyword kw">self</span>
-206: <span class="ruby-keyword kw">end</span>
-207: <span class="ruby-keyword kw">end</span>
-208: <span class="ruby-keyword kw">end</span></pre>
- </div>
-
- </div>
-
-
-
-
- </div>
-
-
- <div id="porter-step--method" class="method-detail ">
- <a name="method-i-porter2_step4"></a>
-
- <div class="method-heading">
-
- <span class="method-name">porter2_step4</span><span
- class="method-args">(gb_english = false)</span>
- <span class="method-click-advice">click to toggle source</span>
-
- </div>
-
- <div class="method-description">
-
- <p>
-Search for the longest among the suffixes listed in the keys of
-Porter2::STEP_4_MAPS. If one is found and that suffix occurs in R2,
-replace it with the value found in STEP_4_MAPS.
-</p>
-<p>
-(Suffix ‘ion’ is treated as a special case in the procedure.)
-</p>
-<p>
-(If gb_english is <tt>true</tt>, delete the ‘ise’ suffix if
-found.)
-</p>
-
-
-
- <div class="method-source-code"
- id="porter-step--source">
-<pre>
- <span class="ruby-comment cmt"># File lib/porter2_implementation.rb, line 218</span>
-218: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">porter2_step4</span>(<span class="ruby-identifier">gb_english</span> = <span class="ruby-keyword kw">false</span>)
-219: <span class="ruby-keyword kw">if</span> <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">porter2_r2</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/ion$/</span> <span class="ruby-keyword kw">and</span> <span class="ruby-keyword kw">self</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/(s|t)ion$/</span>
-220: <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">sub</span>(<span class="ruby-regexp re">/ion$/</span>, <span class="ruby-value str">''</span>)
-221: <span class="ruby-keyword kw">else</span>
-222: <span class="ruby-identifier">s4m</span> = <span class="ruby-constant">Porter2</span><span class="ruby-operator">::</span><span class="ruby-constant">STEP_4_MAPS</span>.<span class="ruby-identifier">dup</span>
-223: <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">gb_english</span>
-224: <span class="ruby-identifier">s4m</span>[<span class="ruby-value str">"ise"</span>] = <span class="ruby-value str">""</span>
-225: <span class="ruby-keyword kw">end</span>
-226: <span class="ruby-identifier">step_4_re</span> = <span class="ruby-constant">Regexp</span>.<span class="ruby-identifier">union</span>(<span class="ruby-identifier">s4m</span>.<span class="ruby-identifier">keys</span>.<span class="ruby-identifier">map</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">r</span><span class="ruby-operator">|</span> <span class="ruby-constant">Regexp</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">r</span> <span class="ruby-operator">+</span> <span class="ruby-value str">"$"</span>)})
-227: <span class="ruby-identifier">r2</span> = <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">porter2_r2</span>
-228: <span class="ruby-keyword kw">if</span> <span class="ruby-keyword kw">self</span> <span class="ruby-operator">=~</span> <span class="ruby-identifier">step_4_re</span>
-229: <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">r2</span> <span class="ruby-operator">=~</span> <span class="ruby-node">/#{$&}/</span>
-230: <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">sub</span>(<span class="ruby-node">/#{$&}$/</span>, <span class="ruby-identifier">s4m</span>[<span class="ruby-node">$&</span>])
-231: <span class="ruby-keyword kw">else</span>
-232: <span class="ruby-keyword kw">self</span>
-233: <span class="ruby-keyword kw">end</span>
-234: <span class="ruby-keyword kw">else</span>
-235: <span class="ruby-keyword kw">self</span>
-236: <span class="ruby-keyword kw">end</span>
-237: <span class="ruby-keyword kw">end</span>
-238: <span class="ruby-keyword kw">end</span></pre>
- </div>
-
- </div>
-
-
-
-
- </div>
-
-
- <div id="porter-step--method" class="method-detail ">
- <a name="method-i-porter2_step5"></a>
-
- <div class="method-heading">
-
- <span class="method-name">porter2_step5</span><span
- class="method-args">()</span>
- <span class="method-click-advice">click to toggle source</span>
-
- </div>
-
- <div class="method-description">
-
- <p>
-Search for the the following suffixes, and, if found, perform the action
-indicated.
-</p>
-<table>
-<tr><td valign="top">e</td><td><p>
-delete if in R2, or in R1 and not preceded by a short syllable
-</p>
-</td></tr>
-<tr><td valign="top">l</td><td><p>
-delete if in R2 and preceded by l
-</p>
-</td></tr>
-</table>
-
-
-
- <div class="method-source-code"
- id="porter-step--source">
-<pre>
- <span class="ruby-comment cmt"># File lib/porter2_implementation.rb, line 244</span>
-244: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">porter2_step5</span>
-245: <span class="ruby-keyword kw">if</span> <span class="ruby-keyword kw">self</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/ll$/</span> <span class="ruby-keyword kw">and</span> <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">porter2_r2</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/l$/</span>
-246: <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">sub</span>(<span class="ruby-regexp re">/ll$/</span>, <span class="ruby-value str">'l'</span>)
-247: <span class="ruby-keyword kw">elsif</span> <span class="ruby-keyword kw">self</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/e$/</span> <span class="ruby-keyword kw">and</span> <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">porter2_r2</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/e$/</span>
-248: <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">sub</span>(<span class="ruby-regexp re">/e$/</span>, <span class="ruby-value str">''</span>)
-249: <span class="ruby-keyword kw">else</span>
-250: <span class="ruby-identifier">r1</span> = <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">porter2_r1</span>
-251: <span class="ruby-keyword kw">if</span> <span class="ruby-keyword kw">self</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/e$/</span> <span class="ruby-keyword kw">and</span> <span class="ruby-identifier">r1</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/e$/</span> <span class="ruby-keyword kw">and</span> <span class="ruby-keyword kw">not</span> <span class="ruby-keyword kw">self</span> <span class="ruby-operator">=~</span> <span class="ruby-node">/#{Porter2::SHORT_SYLLABLE}e$/</span>
-252: <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">sub</span>(<span class="ruby-regexp re">/e$/</span>, <span class="ruby-value str">''</span>)
-253: <span class="ruby-keyword kw">else</span>
-254: <span class="ruby-keyword kw">self</span>
-255: <span class="ruby-keyword kw">end</span>
-256: <span class="ruby-keyword kw">end</span>
-257: <span class="ruby-keyword kw">end</span></pre>
- </div>
-
- </div>
-
-
-
-
- </div>
-
-
- <div id="porter-tidy-method" class="method-detail ">
- <a name="method-i-porter2_tidy"></a>
-
- <div class="method-heading">
-
- <span class="method-name">porter2_tidy</span><span
- class="method-args">()</span>
- <span class="method-click-advice">click to toggle source</span>
-
- </div>
-
- <div class="method-description">
-
- <p>
-Tidy up the word before we get down to the algorithm
-</p>
-
-
-
- <div class="method-source-code"
- id="porter-tidy-source">
-<pre>
- <span class="ruby-comment cmt"># File lib/porter2_implementation.rb, line 7</span>
- 7: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">porter2_tidy</span>
- 8: <span class="ruby-identifier">preword</span> = <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">to_s</span>.<span class="ruby-identifier">strip</span>.<span class="ruby-identifier">downcase</span>
- 9:
-10: <span class="ruby-comment cmt"># map apostrophe-like characters to apostrophes</span>
-11: <span class="ruby-identifier">preword</span>.<span class="ruby-identifier">gsub!</span>(<span class="ruby-regexp re">/‘/</span>, <span class="ruby-value str">"'"</span>)
-12: <span class="ruby-identifier">preword</span>.<span class="ruby-identifier">gsub!</span>(<span class="ruby-regexp re">/’/</span>, <span class="ruby-value str">"'"</span>)
-13:
-14: <span class="ruby-identifier">preword</span>
-15: <span class="ruby-keyword kw">end</span></pre>
- </div>
-
- </div>
-
-
-
-
- </div>
-
-
- <div id="stem-method" class="method-detail method-alias">
- <a name="method-i-stem"></a>
-
- <div class="method-heading">
-
- <span class="method-name">stem</span><span
- class="method-args">(gb_english = false)</span>
- <span class="method-click-advice">click to toggle source</span>
-
- </div>
-
- <div class="method-description">
-
-
-
-
-
- </div>
-
-
-
-
- <div class="aliases">
- Alias for: <a href="String.html#method-i-porter2_stem">porter2_stem</a>
- </div>
-
- </div>
-
-
- </div>
-
-
- </div>
-
-
- <div id="rdoc-debugging-section-dump" class="debugging-section">
-
- <p>Disabled; run with --debug to generate this.</p>
-
- </div>
-
- <div id="validator-badges">
- <p><small><a href="http://validator.w3.org/check/referer">[Validate]</a></small></p>
- <p><small>Generated with the <a href="http://deveiate.org/projects/Darkfish-Rdoc/">Darkfish
- Rdoc Generator</a> 1.1.6</small>.</p>
- </div>
-
-</body>
-</html>
-
projects / porter2stemmer.git / blobdiff