File: C:/Ruby27-x64/share/doc/ruby/html/Racc/GrammarFileScanner.html
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<li ><a href="#method-c-new">::new</a>
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<li ><a href="#method-i-get_quoted_re">#get_quoted_re</a>
<li ><a href="#method-i-lineno">#lineno</a>
<li ><a href="#method-i-literal_head-3F">#literal_head?</a>
<li ><a href="#method-i-next_line">#next_line</a>
<li ><a href="#method-i-read">#read</a>
<li ><a href="#method-i-reads">#reads</a>
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<li ><a href="#method-i-scan_error-21">#scan_error!</a>
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<h1 id="class-Racc::GrammarFileScanner" class="class">
class Racc::GrammarFileScanner
</h1>
<section class="description">
</section>
<section id="5Buntitled-5D" class="documentation-section">
<section class="constants-list">
<header>
<h3>Constants</h3>
</header>
<dl>
<dt id="CACHE">CACHE
<dd>
<dt id="LEFT_TO_RIGHT">LEFT_TO_RIGHT
<dd>
<dt id="ReservedWord">ReservedWord
<dd>
</dl>
</section>
<section class="attribute-method-details" class="method-section">
<header>
<h3>Attributes</h3>
</header>
<div id="attribute-i-debug" class="method-detail">
<div class="method-heading attribute-method-heading">
<span class="method-name">debug</span><span
class="attribute-access-type">[RW]</span>
</div>
<div class="method-description">
</div>
</div>
<div id="attribute-i-epilogue" class="method-detail">
<div class="method-heading attribute-method-heading">
<span class="method-name">epilogue</span><span
class="attribute-access-type">[R]</span>
</div>
<div class="method-description">
</div>
</div>
</section>
<section id="public-class-5Buntitled-5D-method-details" class="method-section">
<header>
<h3>Public Class Methods</h3>
</header>
<div id="method-c-new" class="method-detail ">
<div class="method-heading">
<span class="method-name">new</span><span
class="method-args">(str, filename = '-')</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="new-source">
<pre><span class="ruby-comment"># File lib/racc/grammarfileparser.rb, line 297</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">initialize</span>(<span class="ruby-identifier">str</span>, <span class="ruby-identifier">filename</span> = <span class="ruby-string">'-'</span>)
<span class="ruby-ivar">@lines</span> = <span class="ruby-identifier">str</span>.<span class="ruby-identifier">b</span>.<span class="ruby-identifier">split</span>(<span class="ruby-regexp">/\n|\r\n|\r/</span>)
<span class="ruby-ivar">@filename</span> = <span class="ruby-identifier">filename</span>
<span class="ruby-ivar">@lineno</span> = <span class="ruby-value">-1</span>
<span class="ruby-ivar">@line_head</span> = <span class="ruby-keyword">true</span>
<span class="ruby-ivar">@in_rule_blk</span> = <span class="ruby-keyword">false</span>
<span class="ruby-ivar">@in_conv_blk</span> = <span class="ruby-keyword">false</span>
<span class="ruby-ivar">@in_block</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-ivar">@epilogue</span> = <span class="ruby-string">''</span>
<span class="ruby-ivar">@debug</span> = <span class="ruby-keyword">false</span>
<span class="ruby-identifier">next_line</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
</section>
<section id="public-instance-5Buntitled-5D-method-details" class="method-section">
<header>
<h3>Public Instance Methods</h3>
</header>
<div id="method-i-lineno" class="method-detail ">
<div class="method-heading">
<span class="method-name">lineno</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="lineno-source">
<pre><span class="ruby-comment"># File lib/racc/grammarfileparser.rb, line 312</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">lineno</span>
<span class="ruby-ivar">@lineno</span> <span class="ruby-operator">+</span> <span class="ruby-value">1</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-yylex" class="method-detail ">
<div class="method-heading">
<span class="method-name">yylex</span><span
class="method-args">() { |sym, tok| ... }</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="yylex-source">
<pre><span class="ruby-comment"># File lib/racc/grammarfileparser.rb, line 318</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">yylex</span>(<span class="ruby-operator">&</span><span class="ruby-identifier">block</span>)
<span class="ruby-keyword">unless</span> <span class="ruby-ivar">@debug</span>
<span class="ruby-identifier">yylex0</span>(<span class="ruby-operator">&</span><span class="ruby-identifier">block</span>)
<span class="ruby-keyword">else</span>
<span class="ruby-identifier">yylex0</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">sym</span>, <span class="ruby-identifier">tok</span><span class="ruby-operator">|</span>
<span class="ruby-identifier">$stderr</span>.<span class="ruby-identifier">printf</span> <span class="ruby-string">"%7d %-10s %s\n"</span>, <span class="ruby-identifier">lineno</span>(), <span class="ruby-identifier">sym</span>.<span class="ruby-identifier">inspect</span>, <span class="ruby-identifier">tok</span>.<span class="ruby-identifier">inspect</span>
<span class="ruby-keyword">yield</span> [<span class="ruby-identifier">sym</span>, <span class="ruby-identifier">tok</span>]
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
</section>
<section id="private-instance-5Buntitled-5D-method-details" class="method-section">
<header>
<h3>Private Instance Methods</h3>
</header>
<div id="method-i-atom_symbol" class="method-detail ">
<div class="method-heading">
<span class="method-name">atom_symbol</span><span
class="method-args">(token)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="atom_symbol-source">
<pre><span class="ruby-comment"># File lib/racc/grammarfileparser.rb, line 398</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">atom_symbol</span>(<span class="ruby-identifier">token</span>)
<span class="ruby-keyword">if</span> <span class="ruby-identifier">token</span> <span class="ruby-operator">==</span> <span class="ruby-string">'end'</span>
<span class="ruby-identifier">symbol</span> = <span class="ruby-value">:END</span>
<span class="ruby-ivar">@in_conv_blk</span> = <span class="ruby-keyword">false</span>
<span class="ruby-ivar">@in_rule_blk</span> = <span class="ruby-keyword">false</span>
<span class="ruby-keyword">else</span>
<span class="ruby-keyword">if</span> <span class="ruby-ivar">@line_head</span> <span class="ruby-keyword">and</span> <span class="ruby-keyword">not</span> <span class="ruby-ivar">@in_conv_blk</span> <span class="ruby-keyword">and</span> <span class="ruby-keyword">not</span> <span class="ruby-ivar">@in_rule_blk</span>
<span class="ruby-identifier">symbol</span> = <span class="ruby-constant">ReservedWord</span>[<span class="ruby-identifier">token</span>] <span class="ruby-operator">||</span> <span class="ruby-value">:SYMBOL</span>
<span class="ruby-keyword">else</span>
<span class="ruby-identifier">symbol</span> = <span class="ruby-value">:SYMBOL</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">case</span> <span class="ruby-identifier">symbol</span>
<span class="ruby-keyword">when</span> <span class="ruby-value">:RULE</span> <span class="ruby-keyword">then</span> <span class="ruby-ivar">@in_rule_blk</span> = <span class="ruby-keyword">true</span>
<span class="ruby-keyword">when</span> <span class="ruby-value">:CONV</span> <span class="ruby-keyword">then</span> <span class="ruby-ivar">@in_conv_blk</span> = <span class="ruby-keyword">true</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-ivar">@line_head</span> = <span class="ruby-keyword">false</span>
<span class="ruby-identifier">symbol</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-get_quoted_re" class="method-detail ">
<div class="method-heading">
<span class="method-name">get_quoted_re</span><span
class="method-args">(left)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="get_quoted_re-source">
<pre><span class="ruby-comment"># File lib/racc/grammarfileparser.rb, line 549</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">get_quoted_re</span>(<span class="ruby-identifier">left</span>)
<span class="ruby-identifier">term</span> = <span class="ruby-constant">Regexp</span>.<span class="ruby-identifier">quote</span>(<span class="ruby-constant">LEFT_TO_RIGHT</span>[<span class="ruby-identifier">left</span>] <span class="ruby-operator">||</span> <span class="ruby-identifier">left</span>)
<span class="ruby-constant">CACHE</span>[<span class="ruby-identifier">left</span>] <span class="ruby-operator">||=</span> <span class="ruby-regexp">/\A[^#{term}\\]*(?:\\.[^\\#{term}]*)*#{term}/</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-literal_head-3F" class="method-detail ">
<div class="method-heading">
<span class="method-name">literal_head?</span><span
class="method-args">(pre, post)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="literal_head-3F-source">
<pre><span class="ruby-comment"># File lib/racc/grammarfileparser.rb, line 505</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">literal_head?</span>(<span class="ruby-identifier">pre</span>, <span class="ruby-identifier">post</span>)
(<span class="ruby-operator">!</span><span class="ruby-identifier">pre</span> <span class="ruby-operator">||</span> <span class="ruby-regexp">/[a-zA-Z_0-9]/n</span> <span class="ruby-operator">!~</span> <span class="ruby-identifier">pre</span>[<span class="ruby-value">-1</span>,<span class="ruby-value">1</span>]) <span class="ruby-operator">&&</span>
<span class="ruby-operator">!</span><span class="ruby-identifier">post</span>.<span class="ruby-identifier">empty?</span> <span class="ruby-operator">&&</span> <span class="ruby-regexp">/\A[\s\=]/n</span> <span class="ruby-operator">!~</span> <span class="ruby-identifier">post</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-next_line" class="method-detail ">
<div class="method-heading">
<span class="method-name">next_line</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="next_line-source">
<pre><span class="ruby-comment"># File lib/racc/grammarfileparser.rb, line 363</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">next_line</span>
<span class="ruby-ivar">@lineno</span> <span class="ruby-operator">+=</span> <span class="ruby-value">1</span>
<span class="ruby-ivar">@line</span> = <span class="ruby-ivar">@lines</span>[<span class="ruby-ivar">@lineno</span>]
<span class="ruby-keyword">if</span> <span class="ruby-keyword">not</span> <span class="ruby-ivar">@line</span> <span class="ruby-keyword">or</span> <span class="ruby-regexp">/\A----/</span> <span class="ruby-operator">=~</span> <span class="ruby-ivar">@line</span>
<span class="ruby-ivar">@epilogue</span> = <span class="ruby-ivar">@lines</span>.<span class="ruby-identifier">join</span>(<span class="ruby-string">"\n"</span>)
<span class="ruby-ivar">@lines</span>.<span class="ruby-identifier">clear</span>
<span class="ruby-ivar">@line</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-keyword">if</span> <span class="ruby-ivar">@in_block</span>
<span class="ruby-ivar">@lineno</span> <span class="ruby-operator">-=</span> <span class="ruby-value">1</span>
<span class="ruby-identifier">scan_error!</span> <span class="ruby-identifier">sprintf</span>(<span class="ruby-string">'unterminated %s'</span>, <span class="ruby-ivar">@in_block</span>)
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">false</span>
<span class="ruby-keyword">else</span>
<span class="ruby-ivar">@line</span>.<span class="ruby-identifier">sub!</span>(<span class="ruby-regexp">/(?:\n|\r\n|\r)\z/</span>, <span class="ruby-string">''</span>)
<span class="ruby-ivar">@line_head</span> = <span class="ruby-keyword">true</span>
<span class="ruby-keyword">true</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-read" class="method-detail ">
<div class="method-heading">
<span class="method-name">read</span><span
class="method-args">(len)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="read-source">
<pre><span class="ruby-comment"># File lib/racc/grammarfileparser.rb, line 510</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">read</span>(<span class="ruby-identifier">len</span>)
<span class="ruby-identifier">s</span> = <span class="ruby-ivar">@line</span>[<span class="ruby-value">0</span>, <span class="ruby-identifier">len</span>]
<span class="ruby-ivar">@line</span> = <span class="ruby-ivar">@line</span>[<span class="ruby-identifier">len</span> <span class="ruby-operator">..</span> <span class="ruby-value">-1</span>]
<span class="ruby-identifier">s</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-reads" class="method-detail ">
<div class="method-heading">
<span class="method-name">reads</span><span
class="method-args">(re)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="reads-source">
<pre><span class="ruby-comment"># File lib/racc/grammarfileparser.rb, line 516</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">reads</span>(<span class="ruby-identifier">re</span>)
<span class="ruby-identifier">m</span> = <span class="ruby-identifier">re</span>.<span class="ruby-identifier">match</span>(<span class="ruby-ivar">@line</span>) <span class="ruby-keyword">or</span> <span class="ruby-keyword">return</span> <span class="ruby-keyword">nil</span>
<span class="ruby-ivar">@line</span> = <span class="ruby-identifier">m</span>.<span class="ruby-identifier">post_match</span>
<span class="ruby-identifier">m</span>[<span class="ruby-value">0</span>]
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-scan_action" class="method-detail ">
<div class="method-heading">
<span class="method-name">scan_action</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="scan_action-source">
<pre><span class="ruby-comment"># File lib/racc/grammarfileparser.rb, line 429</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">scan_action</span>
<span class="ruby-identifier">buf</span> = <span class="ruby-string">''</span>
<span class="ruby-identifier">nest</span> = <span class="ruby-value">1</span>
<span class="ruby-identifier">pre</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-ivar">@in_block</span> = <span class="ruby-string">'action'</span>
<span class="ruby-keyword">begin</span>
<span class="ruby-identifier">pre</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">s</span> = <span class="ruby-identifier">reads</span>(<span class="ruby-regexp">/\A\s+/</span>)
<span class="ruby-comment"># does not set 'pre'</span>
<span class="ruby-identifier">buf</span> <span class="ruby-operator"><<</span> <span class="ruby-identifier">s</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">until</span> <span class="ruby-ivar">@line</span>.<span class="ruby-identifier">empty?</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">s</span> = <span class="ruby-identifier">reads</span>(<span class="ruby-regexp">/\A[^'"`{}%#\/\$]+/</span>)
<span class="ruby-identifier">buf</span> <span class="ruby-operator"><<</span> (<span class="ruby-identifier">pre</span> = <span class="ruby-identifier">s</span>)
<span class="ruby-keyword">next</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">case</span> <span class="ruby-identifier">ch</span> = <span class="ruby-identifier">read</span>(<span class="ruby-value">1</span>)
<span class="ruby-keyword">when</span> <span class="ruby-string">'{'</span>
<span class="ruby-identifier">nest</span> <span class="ruby-operator">+=</span> <span class="ruby-value">1</span>
<span class="ruby-identifier">buf</span> <span class="ruby-operator"><<</span> (<span class="ruby-identifier">pre</span> = <span class="ruby-identifier">ch</span>)
<span class="ruby-keyword">when</span> <span class="ruby-string">'}'</span>
<span class="ruby-identifier">nest</span> <span class="ruby-operator">-=</span> <span class="ruby-value">1</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">nest</span> <span class="ruby-operator">==</span> <span class="ruby-value">0</span>
<span class="ruby-ivar">@in_block</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-identifier">buf</span>.<span class="ruby-identifier">sub!</span>(<span class="ruby-regexp">/[ \t\f]+\z/</span>, <span class="ruby-string">''</span>)
<span class="ruby-keyword">return</span> <span class="ruby-identifier">buf</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">buf</span> <span class="ruby-operator"><<</span> (<span class="ruby-identifier">pre</span> = <span class="ruby-identifier">ch</span>)
<span class="ruby-keyword">when</span> <span class="ruby-string">'#'</span> <span class="ruby-comment"># comment</span>
<span class="ruby-identifier">buf</span> <span class="ruby-operator"><<</span> <span class="ruby-identifier">ch</span> <span class="ruby-operator"><<</span> <span class="ruby-ivar">@line</span>
<span class="ruby-keyword">break</span>
<span class="ruby-keyword">when</span> <span class="ruby-string">"'"</span>, <span class="ruby-string">'"'</span>, <span class="ruby-string">'`'</span>
<span class="ruby-identifier">buf</span> <span class="ruby-operator"><<</span> (<span class="ruby-identifier">pre</span> = <span class="ruby-identifier">scan_quoted</span>(<span class="ruby-identifier">ch</span>))
<span class="ruby-keyword">when</span> <span class="ruby-string">'%'</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">literal_head?</span> <span class="ruby-identifier">pre</span>, <span class="ruby-ivar">@line</span>
<span class="ruby-comment"># % string, regexp, array</span>
<span class="ruby-identifier">buf</span> <span class="ruby-operator"><<</span> <span class="ruby-identifier">ch</span>
<span class="ruby-keyword">case</span> <span class="ruby-identifier">ch</span> = <span class="ruby-identifier">read</span>(<span class="ruby-value">1</span>)
<span class="ruby-keyword">when</span> <span class="ruby-regexp">/[qQx]/n</span>
<span class="ruby-identifier">buf</span> <span class="ruby-operator"><<</span> <span class="ruby-identifier">ch</span> <span class="ruby-operator"><<</span> (<span class="ruby-identifier">pre</span> = <span class="ruby-identifier">scan_quoted</span>(<span class="ruby-identifier">read</span>(<span class="ruby-value">1</span>), <span class="ruby-string">'%string'</span>))
<span class="ruby-keyword">when</span> <span class="ruby-regexp">/wW/n</span>
<span class="ruby-identifier">buf</span> <span class="ruby-operator"><<</span> <span class="ruby-identifier">ch</span> <span class="ruby-operator"><<</span> (<span class="ruby-identifier">pre</span> = <span class="ruby-identifier">scan_quoted</span>(<span class="ruby-identifier">read</span>(<span class="ruby-value">1</span>), <span class="ruby-string">'%array'</span>))
<span class="ruby-keyword">when</span> <span class="ruby-regexp">/s/n</span>
<span class="ruby-identifier">buf</span> <span class="ruby-operator"><<</span> <span class="ruby-identifier">ch</span> <span class="ruby-operator"><<</span> (<span class="ruby-identifier">pre</span> = <span class="ruby-identifier">scan_quoted</span>(<span class="ruby-identifier">read</span>(<span class="ruby-value">1</span>), <span class="ruby-string">'%symbol'</span>))
<span class="ruby-keyword">when</span> <span class="ruby-regexp">/r/n</span>
<span class="ruby-identifier">buf</span> <span class="ruby-operator"><<</span> <span class="ruby-identifier">ch</span> <span class="ruby-operator"><<</span> (<span class="ruby-identifier">pre</span> = <span class="ruby-identifier">scan_quoted</span>(<span class="ruby-identifier">read</span>(<span class="ruby-value">1</span>), <span class="ruby-string">'%regexp'</span>))
<span class="ruby-keyword">when</span> <span class="ruby-regexp">/[a-zA-Z0-9= ]/n</span> <span class="ruby-comment"># does not include "_"</span>
<span class="ruby-identifier">scan_error!</span> <span class="ruby-node">"unknown type of % literal '%#{ch}'"</span>
<span class="ruby-keyword">else</span>
<span class="ruby-identifier">buf</span> <span class="ruby-operator"><<</span> (<span class="ruby-identifier">pre</span> = <span class="ruby-identifier">scan_quoted</span>(<span class="ruby-identifier">ch</span>, <span class="ruby-string">'%string'</span>))
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">else</span>
<span class="ruby-comment"># operator</span>
<span class="ruby-identifier">buf</span> <span class="ruby-operator"><<</span> <span class="ruby-string">'||op->'</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">$raccs_print_type</span>
<span class="ruby-identifier">buf</span> <span class="ruby-operator"><<</span> (<span class="ruby-identifier">pre</span> = <span class="ruby-identifier">ch</span>)
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">when</span> <span class="ruby-string">'/'</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">literal_head?</span> <span class="ruby-identifier">pre</span>, <span class="ruby-ivar">@line</span>
<span class="ruby-comment"># regexp</span>
<span class="ruby-identifier">buf</span> <span class="ruby-operator"><<</span> (<span class="ruby-identifier">pre</span> = <span class="ruby-identifier">scan_quoted</span>(<span class="ruby-identifier">ch</span>, <span class="ruby-string">'regexp'</span>))
<span class="ruby-keyword">else</span>
<span class="ruby-comment"># operator</span>
<span class="ruby-identifier">buf</span> <span class="ruby-operator"><<</span> <span class="ruby-string">'||op->'</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">$raccs_print_type</span>
<span class="ruby-identifier">buf</span> <span class="ruby-operator"><<</span> (<span class="ruby-identifier">pre</span> = <span class="ruby-identifier">ch</span>)
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">when</span> <span class="ruby-string">'$'</span> <span class="ruby-comment"># gvar</span>
<span class="ruby-identifier">buf</span> <span class="ruby-operator"><<</span> <span class="ruby-identifier">ch</span> <span class="ruby-operator"><<</span> (<span class="ruby-identifier">pre</span> = <span class="ruby-identifier">read</span>(<span class="ruby-value">1</span>))
<span class="ruby-keyword">else</span>
<span class="ruby-identifier">raise</span> <span class="ruby-string">'racc: fatal: must not happen'</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">buf</span> <span class="ruby-operator"><<</span> <span class="ruby-string">"\n"</span>
<span class="ruby-keyword">end</span> <span class="ruby-keyword">while</span> <span class="ruby-identifier">next_line</span>()
<span class="ruby-identifier">raise</span> <span class="ruby-string">'racc: fatal: scan finished before parser finished'</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-scan_error-21" class="method-detail ">
<div class="method-heading">
<span class="method-name">scan_error!</span><span
class="method-args">(msg)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="scan_error-21-source">
<pre><span class="ruby-comment"># File lib/racc/grammarfileparser.rb, line 554</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">scan_error!</span>(<span class="ruby-identifier">msg</span>)
<span class="ruby-identifier">raise</span> <span class="ruby-constant">CompileError</span>, <span class="ruby-node">"#{lineno()}: #{msg}"</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-scan_quoted" class="method-detail ">
<div class="method-heading">
<span class="method-name">scan_quoted</span><span
class="method-args">(left, tag = 'string')</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="scan_quoted-source">
<pre><span class="ruby-comment"># File lib/racc/grammarfileparser.rb, line 522</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">scan_quoted</span>(<span class="ruby-identifier">left</span>, <span class="ruby-identifier">tag</span> = <span class="ruby-string">'string'</span>)
<span class="ruby-identifier">buf</span> = <span class="ruby-identifier">left</span>.<span class="ruby-identifier">dup</span>
<span class="ruby-identifier">buf</span> = <span class="ruby-node">"||#{tag}->"</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">buf</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">$raccs_print_type</span>
<span class="ruby-identifier">re</span> = <span class="ruby-identifier">get_quoted_re</span>(<span class="ruby-identifier">left</span>)
<span class="ruby-identifier">sv</span>, <span class="ruby-ivar">@in_block</span> = <span class="ruby-ivar">@in_block</span>, <span class="ruby-identifier">tag</span>
<span class="ruby-keyword">begin</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">s</span> = <span class="ruby-identifier">reads</span>(<span class="ruby-identifier">re</span>)
<span class="ruby-identifier">buf</span> <span class="ruby-operator"><<</span> <span class="ruby-identifier">s</span>
<span class="ruby-keyword">break</span>
<span class="ruby-keyword">else</span>
<span class="ruby-identifier">buf</span> <span class="ruby-operator"><<</span> <span class="ruby-ivar">@line</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span> <span class="ruby-keyword">while</span> <span class="ruby-identifier">next_line</span>()
<span class="ruby-ivar">@in_block</span> = <span class="ruby-identifier">sv</span>
<span class="ruby-identifier">buf</span> <span class="ruby-operator"><<</span> <span class="ruby-node">"<-#{tag}||"</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">$raccs_print_type</span>
<span class="ruby-identifier">buf</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-skip_comment" class="method-detail ">
<div class="method-heading">
<span class="method-name">skip_comment</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="skip_comment-source">
<pre><span class="ruby-comment"># File lib/racc/grammarfileparser.rb, line 418</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">skip_comment</span>
<span class="ruby-ivar">@in_block</span> = <span class="ruby-string">'comment'</span>
<span class="ruby-keyword">until</span> <span class="ruby-identifier">m</span> = <span class="ruby-regexp">/\*\//</span>.<span class="ruby-identifier">match</span>(<span class="ruby-ivar">@line</span>)
<span class="ruby-identifier">next_line</span>
<span class="ruby-keyword">end</span>
<span class="ruby-ivar">@line</span> = <span class="ruby-identifier">m</span>.<span class="ruby-identifier">post_match</span>
<span class="ruby-ivar">@in_block</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-yylex0" class="method-detail ">
<div class="method-heading">
<span class="method-name">yylex0</span><span
class="method-args">() { |atom_symbol(s), intern| ... }</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="yylex0-source">
<pre><span class="ruby-comment"># File lib/racc/grammarfileparser.rb, line 331</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">yylex0</span>
<span class="ruby-keyword">begin</span>
<span class="ruby-keyword">until</span> <span class="ruby-ivar">@line</span>.<span class="ruby-identifier">empty?</span>
<span class="ruby-ivar">@line</span>.<span class="ruby-identifier">sub!</span>(<span class="ruby-regexp">/\A\s+/</span>, <span class="ruby-string">''</span>)
<span class="ruby-keyword">if</span> <span class="ruby-regexp">/\A\#/</span> <span class="ruby-operator">=~</span> <span class="ruby-ivar">@line</span>
<span class="ruby-keyword">break</span>
<span class="ruby-keyword">elsif</span> <span class="ruby-regexp">/\A\/\*/</span> <span class="ruby-operator">=~</span> <span class="ruby-ivar">@line</span>
<span class="ruby-identifier">skip_comment</span>
<span class="ruby-keyword">elsif</span> <span class="ruby-identifier">s</span> = <span class="ruby-identifier">reads</span>(<span class="ruby-regexp">/\A[a-zA-Z_]\w*/</span>)
<span class="ruby-keyword">yield</span> [<span class="ruby-identifier">atom_symbol</span>(<span class="ruby-identifier">s</span>), <span class="ruby-identifier">s</span>.<span class="ruby-identifier">intern</span>]
<span class="ruby-keyword">elsif</span> <span class="ruby-identifier">s</span> = <span class="ruby-identifier">reads</span>(<span class="ruby-regexp">/\A\d+/</span>)
<span class="ruby-keyword">yield</span> [<span class="ruby-value">:DIGIT</span>, <span class="ruby-identifier">s</span>.<span class="ruby-identifier">to_i</span>]
<span class="ruby-keyword">elsif</span> <span class="ruby-identifier">ch</span> = <span class="ruby-identifier">reads</span>(<span class="ruby-regexp">/\A./</span>)
<span class="ruby-keyword">case</span> <span class="ruby-identifier">ch</span>
<span class="ruby-keyword">when</span> <span class="ruby-string">'"'</span>, <span class="ruby-string">"'"</span>
<span class="ruby-keyword">yield</span> [<span class="ruby-value">:STRING</span>, <span class="ruby-identifier">eval</span>(<span class="ruby-identifier">scan_quoted</span>(<span class="ruby-identifier">ch</span>))]
<span class="ruby-keyword">when</span> <span class="ruby-string">'{'</span>
<span class="ruby-identifier">lineno</span> = <span class="ruby-identifier">lineno</span>()
<span class="ruby-keyword">yield</span> [<span class="ruby-value">:ACTION</span>, <span class="ruby-constant">SourceText</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">scan_action</span>(), <span class="ruby-ivar">@filename</span>, <span class="ruby-identifier">lineno</span>)]
<span class="ruby-keyword">else</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">ch</span> <span class="ruby-operator">==</span> <span class="ruby-string">'|'</span>
<span class="ruby-ivar">@line_head</span> = <span class="ruby-keyword">false</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">yield</span> [<span class="ruby-identifier">ch</span>, <span class="ruby-identifier">ch</span>]
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">else</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span> <span class="ruby-keyword">while</span> <span class="ruby-identifier">next_line</span>()
<span class="ruby-keyword">yield</span> <span class="ruby-keyword">nil</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
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</section>
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