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<!DOCTYPE html>
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<h1>Source code for nltk.app.chunkparser_app</h1><div class="highlight"><pre>
<span></span><span class="c1"># Natural Language Toolkit: Regexp Chunk Parser Application</span>
<span class="c1">#</span>
<span class="c1"># Copyright (C) 2001-2021 NLTK Project</span>
<span class="c1"># Author: Edward Loper <edloper@gmail.com></span>
<span class="c1"># URL: <http://nltk.org/></span>
<span class="c1"># For license information, see LICENSE.TXT</span>
<span class="sd">"""</span>
<span class="sd">A graphical tool for exploring the regular expression based chunk</span>
<span class="sd">parser ``nltk.chunk.RegexpChunkParser``.</span>
<span class="sd">"""</span>
<span class="c1"># Todo: Add a way to select the development set from the menubar. This</span>
<span class="c1"># might just need to be a selection box (conll vs treebank etc) plus</span>
<span class="c1"># configuration parameters to select what's being chunked (eg VP vs NP)</span>
<span class="c1"># and what part of the data is being used as the development set.</span>
<span class="kn">import</span> <span class="nn">random</span>
<span class="kn">import</span> <span class="nn">re</span>
<span class="kn">import</span> <span class="nn">textwrap</span>
<span class="kn">import</span> <span class="nn">time</span>
<span class="kn">from</span> <span class="nn">tkinter</span> <span class="kn">import</span> <span class="p">(</span>
<span class="n">Button</span><span class="p">,</span>
<span class="n">Canvas</span><span class="p">,</span>
<span class="n">Checkbutton</span><span class="p">,</span>
<span class="n">Frame</span><span class="p">,</span>
<span class="n">IntVar</span><span class="p">,</span>
<span class="n">Label</span><span class="p">,</span>
<span class="n">Menu</span><span class="p">,</span>
<span class="n">Scrollbar</span><span class="p">,</span>
<span class="n">Text</span><span class="p">,</span>
<span class="n">Tk</span><span class="p">,</span>
<span class="p">)</span>
<span class="kn">from</span> <span class="nn">tkinter.filedialog</span> <span class="kn">import</span> <span class="n">askopenfilename</span><span class="p">,</span> <span class="n">asksaveasfilename</span>
<span class="kn">from</span> <span class="nn">tkinter.font</span> <span class="kn">import</span> <span class="n">Font</span>
<span class="kn">from</span> <span class="nn">nltk.chunk</span> <span class="kn">import</span> <span class="n">ChunkScore</span><span class="p">,</span> <span class="n">RegexpChunkParser</span>
<span class="kn">from</span> <span class="nn">nltk.chunk.regexp</span> <span class="kn">import</span> <span class="n">RegexpChunkRule</span>
<span class="kn">from</span> <span class="nn">nltk.corpus</span> <span class="kn">import</span> <span class="n">conll2000</span><span class="p">,</span> <span class="n">treebank_chunk</span>
<span class="kn">from</span> <span class="nn">nltk.draw.util</span> <span class="kn">import</span> <span class="n">ShowText</span>
<span class="kn">from</span> <span class="nn">nltk.tree</span> <span class="kn">import</span> <span class="n">Tree</span>
<span class="kn">from</span> <span class="nn">nltk.util</span> <span class="kn">import</span> <span class="n">in_idle</span>
<span class="k">class</span> <span class="nc">RegexpChunkApp</span><span class="p">:</span>
<span class="sd">"""</span>
<span class="sd"> A graphical tool for exploring the regular expression based chunk</span>
<span class="sd"> parser ``nltk.chunk.RegexpChunkParser``.</span>
<span class="sd"> See ``HELP`` for instructional text.</span>
<span class="sd"> """</span>
<span class="c1">##/////////////////////////////////////////////////////////////////</span>
<span class="c1">## Help Text</span>
<span class="c1">##/////////////////////////////////////////////////////////////////</span>
<span class="c1">#: A dictionary mapping from part of speech tags to descriptions,</span>
<span class="c1">#: which is used in the help text. (This should probably live with</span>
<span class="c1">#: the conll and/or treebank corpus instead.)</span>
<span class="n">TAGSET</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">"CC"</span><span class="p">:</span> <span class="s2">"Coordinating conjunction"</span><span class="p">,</span>
<span class="s2">"PRP$"</span><span class="p">:</span> <span class="s2">"Possessive pronoun"</span><span class="p">,</span>
<span class="s2">"CD"</span><span class="p">:</span> <span class="s2">"Cardinal number"</span><span class="p">,</span>
<span class="s2">"RB"</span><span class="p">:</span> <span class="s2">"Adverb"</span><span class="p">,</span>
<span class="s2">"DT"</span><span class="p">:</span> <span class="s2">"Determiner"</span><span class="p">,</span>
<span class="s2">"RBR"</span><span class="p">:</span> <span class="s2">"Adverb, comparative"</span><span class="p">,</span>
<span class="s2">"EX"</span><span class="p">:</span> <span class="s2">"Existential there"</span><span class="p">,</span>
<span class="s2">"RBS"</span><span class="p">:</span> <span class="s2">"Adverb, superlative"</span><span class="p">,</span>
<span class="s2">"FW"</span><span class="p">:</span> <span class="s2">"Foreign word"</span><span class="p">,</span>
<span class="s2">"RP"</span><span class="p">:</span> <span class="s2">"Particle"</span><span class="p">,</span>
<span class="s2">"JJ"</span><span class="p">:</span> <span class="s2">"Adjective"</span><span class="p">,</span>
<span class="s2">"TO"</span><span class="p">:</span> <span class="s2">"to"</span><span class="p">,</span>
<span class="s2">"JJR"</span><span class="p">:</span> <span class="s2">"Adjective, comparative"</span><span class="p">,</span>
<span class="s2">"UH"</span><span class="p">:</span> <span class="s2">"Interjection"</span><span class="p">,</span>
<span class="s2">"JJS"</span><span class="p">:</span> <span class="s2">"Adjective, superlative"</span><span class="p">,</span>
<span class="s2">"VB"</span><span class="p">:</span> <span class="s2">"Verb, base form"</span><span class="p">,</span>
<span class="s2">"LS"</span><span class="p">:</span> <span class="s2">"List item marker"</span><span class="p">,</span>
<span class="s2">"VBD"</span><span class="p">:</span> <span class="s2">"Verb, past tense"</span><span class="p">,</span>
<span class="s2">"MD"</span><span class="p">:</span> <span class="s2">"Modal"</span><span class="p">,</span>
<span class="s2">"NNS"</span><span class="p">:</span> <span class="s2">"Noun, plural"</span><span class="p">,</span>
<span class="s2">"NN"</span><span class="p">:</span> <span class="s2">"Noun, singular or masps"</span><span class="p">,</span>
<span class="s2">"VBN"</span><span class="p">:</span> <span class="s2">"Verb, past participle"</span><span class="p">,</span>
<span class="s2">"VBZ"</span><span class="p">:</span> <span class="s2">"Verb,3rd ps. sing. present"</span><span class="p">,</span>
<span class="s2">"NNP"</span><span class="p">:</span> <span class="s2">"Proper noun, singular"</span><span class="p">,</span>
<span class="s2">"NNPS"</span><span class="p">:</span> <span class="s2">"Proper noun plural"</span><span class="p">,</span>
<span class="s2">"WDT"</span><span class="p">:</span> <span class="s2">"wh-determiner"</span><span class="p">,</span>
<span class="s2">"PDT"</span><span class="p">:</span> <span class="s2">"Predeterminer"</span><span class="p">,</span>
<span class="s2">"WP"</span><span class="p">:</span> <span class="s2">"wh-pronoun"</span><span class="p">,</span>
<span class="s2">"POS"</span><span class="p">:</span> <span class="s2">"Possessive ending"</span><span class="p">,</span>
<span class="s2">"WP$"</span><span class="p">:</span> <span class="s2">"Possessive wh-pronoun"</span><span class="p">,</span>
<span class="s2">"PRP"</span><span class="p">:</span> <span class="s2">"Personal pronoun"</span><span class="p">,</span>
<span class="s2">"WRB"</span><span class="p">:</span> <span class="s2">"wh-adverb"</span><span class="p">,</span>
<span class="s2">"("</span><span class="p">:</span> <span class="s2">"open parenthesis"</span><span class="p">,</span>
<span class="s2">")"</span><span class="p">:</span> <span class="s2">"close parenthesis"</span><span class="p">,</span>
<span class="s2">"``"</span><span class="p">:</span> <span class="s2">"open quote"</span><span class="p">,</span>
<span class="s2">","</span><span class="p">:</span> <span class="s2">"comma"</span><span class="p">,</span>
<span class="s2">"''"</span><span class="p">:</span> <span class="s2">"close quote"</span><span class="p">,</span>
<span class="s2">"."</span><span class="p">:</span> <span class="s2">"period"</span><span class="p">,</span>
<span class="s2">"#"</span><span class="p">:</span> <span class="s2">"pound sign (currency marker)"</span><span class="p">,</span>
<span class="s2">"$"</span><span class="p">:</span> <span class="s2">"dollar sign (currency marker)"</span><span class="p">,</span>
<span class="s2">"IN"</span><span class="p">:</span> <span class="s2">"Preposition/subord. conjunction"</span><span class="p">,</span>
<span class="s2">"SYM"</span><span class="p">:</span> <span class="s2">"Symbol (mathematical or scientific)"</span><span class="p">,</span>
<span class="s2">"VBG"</span><span class="p">:</span> <span class="s2">"Verb, gerund/present participle"</span><span class="p">,</span>
<span class="s2">"VBP"</span><span class="p">:</span> <span class="s2">"Verb, non-3rd ps. sing. present"</span><span class="p">,</span>
<span class="s2">":"</span><span class="p">:</span> <span class="s2">"colon"</span><span class="p">,</span>
<span class="p">}</span>
<span class="c1">#: Contents for the help box. This is a list of tuples, one for</span>
<span class="c1">#: each help page, where each tuple has four elements:</span>
<span class="c1">#: - A title (displayed as a tab)</span>
<span class="c1">#: - A string description of tabstops (see Tkinter.Text for details)</span>
<span class="c1">#: - The text contents for the help page. You can use expressions</span>
<span class="c1">#: like <red>...</red> to colorize the text; see ``HELP_AUTOTAG``</span>
<span class="c1">#: for a list of tags you can use for colorizing.</span>
<span class="n">HELP</span> <span class="o">=</span> <span class="p">[</span>
<span class="p">(</span>
<span class="s2">"Help"</span><span class="p">,</span>
<span class="s2">"20"</span><span class="p">,</span>
<span class="s2">"Welcome to the regular expression chunk-parser grammar editor. "</span>
<span class="s2">"You can use this editor to develop and test chunk parser grammars "</span>
<span class="s2">"based on NLTK's RegexpChunkParser class.</span><span class="se">\n\n</span><span class="s2">"</span>
<span class="c1"># Help box.</span>
<span class="s2">"Use this box ('Help') to learn more about the editor; click on the "</span>
<span class="s2">"tabs for help on specific topics:"</span>
<span class="s2">"<indent></span><span class="se">\n</span><span class="s2">"</span>
<span class="s2">"Rules: grammar rule types</span><span class="se">\n</span><span class="s2">"</span>
<span class="s2">"Regexps: regular expression syntax</span><span class="se">\n</span><span class="s2">"</span>
<span class="s2">"Tags: part of speech tags</span><span class="se">\n</span><span class="s2"></indent></span><span class="se">\n</span><span class="s2">"</span>
<span class="c1"># Grammar.</span>
<span class="s2">"Use the upper-left box ('Grammar') to edit your grammar. "</span>
<span class="s2">"Each line of your grammar specifies a single 'rule', "</span>
<span class="s2">"which performs an action such as creating a chunk or merging "</span>
<span class="s2">"two chunks.</span><span class="se">\n\n</span><span class="s2">"</span>
<span class="c1"># Dev set.</span>
<span class="s2">"The lower-left box ('Development Set') runs your grammar on the "</span>
<span class="s2">"development set, and displays the results. "</span>
<span class="s2">"Your grammar's chunks are <highlight>highlighted</highlight>, and "</span>
<span class="s2">"the correct (gold standard) chunks are "</span>
<span class="s2">"<underline>underlined</underline>. If they "</span>
<span class="s2">"match, they are displayed in <green>green</green>; otherwise, "</span>
<span class="s2">"they are displayed in <red>red</red>. The box displays a single "</span>
<span class="s2">"sentence from the development set at a time; use the scrollbar or "</span>
<span class="s2">"the next/previous buttons view additional sentences.</span><span class="se">\n\n</span><span class="s2">"</span>
<span class="c1"># Performance</span>
<span class="s2">"The lower-right box ('Evaluation') tracks the performance of "</span>
<span class="s2">"your grammar on the development set. The 'precision' axis "</span>
<span class="s2">"indicates how many of your grammar's chunks are correct; and "</span>
<span class="s2">"the 'recall' axis indicates how many of the gold standard "</span>
<span class="s2">"chunks your system generated. Typically, you should try to "</span>
<span class="s2">"design a grammar that scores high on both metrics. The "</span>
<span class="s2">"exact precision and recall of the current grammar, as well "</span>
<span class="s2">"as their harmonic mean (the 'f-score'), are displayed in "</span>
<span class="s2">"the status bar at the bottom of the window."</span><span class="p">,</span>
<span class="p">),</span>
<span class="p">(</span>
<span class="s2">"Rules"</span><span class="p">,</span>
<span class="s2">"10"</span><span class="p">,</span>
<span class="s2">"<h1>{...regexp...}</h1>"</span>
<span class="s2">"<indent></span><span class="se">\n</span><span class="s2">Chunk rule: creates new chunks from words matching "</span>
<span class="s2">"regexp.</indent></span><span class="se">\n\n</span><span class="s2">"</span>
<span class="s2">"<h1>}...regexp...{</h1>"</span>
<span class="s2">"<indent></span><span class="se">\n</span><span class="s2">Strip rule: removes words matching regexp from existing "</span>
<span class="s2">"chunks.</indent></span><span class="se">\n\n</span><span class="s2">"</span>
<span class="s2">"<h1>...regexp1...}{...regexp2...</h1>"</span>
<span class="s2">"<indent></span><span class="se">\n</span><span class="s2">Split rule: splits chunks that match regexp1 followed by "</span>
<span class="s2">"regexp2 in two.</indent></span><span class="se">\n\n</span><span class="s2">"</span>
<span class="s2">"<h1>...regexp...</span><span class="si">{}</span><span class="s2">...regexp...</h1>"</span>
<span class="s2">"<indent></span><span class="se">\n</span><span class="s2">Merge rule: joins consecutive chunks that match regexp1 "</span>
<span class="s2">"and regexp2</indent></span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span>
<span class="p">),</span>
<span class="p">(</span>
<span class="s2">"Regexps"</span><span class="p">,</span>
<span class="s2">"10 60"</span><span class="p">,</span>
<span class="c1"># "Regular Expression Syntax Summary:\n\n"</span>
<span class="s2">"<h1>Pattern</span><span class="se">\t\t</span><span class="s2">Matches...</h1></span><span class="se">\n</span><span class="s2">"</span>
<span class="s2">"<hangindent>"</span>
<span class="s2">"</span><span class="se">\t</span><span class="s2"><<var>T</var>></span><span class="se">\t</span><span class="s2">a word with tag <var>T</var> "</span>
<span class="s2">"(where <var>T</var> may be a regexp).</span><span class="se">\n</span><span class="s2">"</span>
<span class="s2">"</span><span class="se">\t</span><span class="s2"><var>x</var>?</span><span class="se">\t</span><span class="s2">an optional <var>x</var></span><span class="se">\n</span><span class="s2">"</span>
<span class="s2">"</span><span class="se">\t</span><span class="s2"><var>x</var>+</span><span class="se">\t</span><span class="s2">a sequence of 1 or more <var>x</var>'s</span><span class="se">\n</span><span class="s2">"</span>
<span class="s2">"</span><span class="se">\t</span><span class="s2"><var>x</var>*</span><span class="se">\t</span><span class="s2">a sequence of 0 or more <var>x</var>'s</span><span class="se">\n</span><span class="s2">"</span>
<span class="s2">"</span><span class="se">\t</span><span class="s2"><var>x</var>|<var>y</var></span><span class="se">\t</span><span class="s2"><var>x</var> or <var>y</var></span><span class="se">\n</span><span class="s2">"</span>
<span class="s2">"</span><span class="se">\t</span><span class="s2">.</span><span class="se">\t</span><span class="s2">matches any character</span><span class="se">\n</span><span class="s2">"</span>
<span class="s2">"</span><span class="se">\t</span><span class="s2">(<var>x</var>)</span><span class="se">\t</span><span class="s2">Treats <var>x</var> as a group</span><span class="se">\n</span><span class="s2">"</span>
<span class="s2">"</span><span class="se">\t</span><span class="s2"># <var>x...</var></span><span class="se">\t</span><span class="s2">Treats <var>x...</var> "</span>
<span class="s2">"(to the end of the line) as a comment</span><span class="se">\n</span><span class="s2">"</span>
<span class="s2">"</span><span class="se">\t\\</span><span class="s2"><var>C</var></span><span class="se">\t</span><span class="s2">matches character <var>C</var> "</span>
<span class="s2">"(useful when <var>C</var> is a special character "</span>
<span class="s2">"like + or #)</span><span class="se">\n</span><span class="s2">"</span>
<span class="s2">"</hangindent>"</span>
<span class="s2">"</span><span class="se">\n</span><span class="s2"><h1>Examples:</h1></span><span class="se">\n</span><span class="s2">"</span>
<span class="s2">"<hangindent>"</span>
<span class="s2">"</span><span class="se">\t</span><span class="s2"><regexp><NN></regexp></span><span class="se">\n</span><span class="s2">"</span>
<span class="s1">'</span><span class="se">\t\t</span><span class="s1">Matches <match>"cow/NN"</match></span><span class="se">\n</span><span class="s1">'</span>
<span class="s1">'</span><span class="se">\t\t</span><span class="s1">Matches <match>"green/NN"</match></span><span class="se">\n</span><span class="s1">'</span>
<span class="s2">"</span><span class="se">\t</span><span class="s2"><regexp><VB.*></regexp></span><span class="se">\n</span><span class="s2">"</span>
<span class="s1">'</span><span class="se">\t\t</span><span class="s1">Matches <match>"eating/VBG"</match></span><span class="se">\n</span><span class="s1">'</span>
<span class="s1">'</span><span class="se">\t\t</span><span class="s1">Matches <match>"ate/VBD"</match></span><span class="se">\n</span><span class="s1">'</span>
<span class="s2">"</span><span class="se">\t</span><span class="s2"><regexp><IN><DT><NN></regexp></span><span class="se">\n</span><span class="s2">"</span>
<span class="s1">'</span><span class="se">\t\t</span><span class="s1">Matches <match>"on/IN the/DT car/NN"</match></span><span class="se">\n</span><span class="s1">'</span>
<span class="s2">"</span><span class="se">\t</span><span class="s2"><regexp><RB>?<VBD></regexp></span><span class="se">\n</span><span class="s2">"</span>
<span class="s1">'</span><span class="se">\t\t</span><span class="s1">Matches <match>"ran/VBD"</match></span><span class="se">\n</span><span class="s1">'</span>
<span class="s1">'</span><span class="se">\t\t</span><span class="s1">Matches <match>"slowly/RB ate/VBD"</match></span><span class="se">\n</span><span class="s1">'</span>
<span class="sa">r</span><span class="s2">"\t<regexp><\#><CD> # This is a comment...</regexp>\n"</span>
<span class="s1">'</span><span class="se">\t\t</span><span class="s1">Matches <match>"#/# 100/CD"</match></span><span class="se">\n</span><span class="s1">'</span>
<span class="s2">"</hangindent>"</span><span class="p">,</span>
<span class="p">),</span>
<span class="p">(</span>
<span class="s2">"Tags"</span><span class="p">,</span>
<span class="s2">"10 60"</span><span class="p">,</span>
<span class="s2">"<h1>Part of Speech Tags:</h1></span><span class="se">\n</span><span class="s2">"</span>
<span class="o">+</span> <span class="s2">"<hangindent>"</span>
<span class="o">+</span> <span class="s2">"<<TAGSET>>"</span>
<span class="o">+</span> <span class="s2">"</hangindent></span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="c1"># this gets auto-substituted w/ self.TAGSET</span>
<span class="p">),</span>
<span class="p">]</span>
<span class="n">HELP_AUTOTAG</span> <span class="o">=</span> <span class="p">[</span>
<span class="p">(</span><span class="s2">"red"</span><span class="p">,</span> <span class="nb">dict</span><span class="p">(</span><span class="n">foreground</span><span class="o">=</span><span class="s2">"#a00"</span><span class="p">)),</span>
<span class="p">(</span><span class="s2">"green"</span><span class="p">,</span> <span class="nb">dict</span><span class="p">(</span><span class="n">foreground</span><span class="o">=</span><span class="s2">"#080"</span><span class="p">)),</span>
<span class="p">(</span><span class="s2">"highlight"</span><span class="p">,</span> <span class="nb">dict</span><span class="p">(</span><span class="n">background</span><span class="o">=</span><span class="s2">"#ddd"</span><span class="p">)),</span>
<span class="p">(</span><span class="s2">"underline"</span><span class="p">,</span> <span class="nb">dict</span><span class="p">(</span><span class="n">underline</span><span class="o">=</span><span class="kc">True</span><span class="p">)),</span>
<span class="p">(</span><span class="s2">"h1"</span><span class="p">,</span> <span class="nb">dict</span><span class="p">(</span><span class="n">underline</span><span class="o">=</span><span class="kc">True</span><span class="p">)),</span>
<span class="p">(</span><span class="s2">"indent"</span><span class="p">,</span> <span class="nb">dict</span><span class="p">(</span><span class="n">lmargin1</span><span class="o">=</span><span class="mi">20</span><span class="p">,</span> <span class="n">lmargin2</span><span class="o">=</span><span class="mi">20</span><span class="p">)),</span>
<span class="p">(</span><span class="s2">"hangindent"</span><span class="p">,</span> <span class="nb">dict</span><span class="p">(</span><span class="n">lmargin1</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">lmargin2</span><span class="o">=</span><span class="mi">60</span><span class="p">)),</span>
<span class="p">(</span><span class="s2">"var"</span><span class="p">,</span> <span class="nb">dict</span><span class="p">(</span><span class="n">foreground</span><span class="o">=</span><span class="s2">"#88f"</span><span class="p">)),</span>
<span class="p">(</span><span class="s2">"regexp"</span><span class="p">,</span> <span class="nb">dict</span><span class="p">(</span><span class="n">foreground</span><span class="o">=</span><span class="s2">"#ba7"</span><span class="p">)),</span>
<span class="p">(</span><span class="s2">"match"</span><span class="p">,</span> <span class="nb">dict</span><span class="p">(</span><span class="n">foreground</span><span class="o">=</span><span class="s2">"#6a6"</span><span class="p">)),</span>
<span class="p">]</span>
<span class="c1">##/////////////////////////////////////////////////////////////////</span>
<span class="c1">## Config Parameters</span>
<span class="c1">##/////////////////////////////////////////////////////////////////</span>
<span class="n">_EVAL_DELAY</span> <span class="o">=</span> <span class="mi">1</span>
<span class="sd">"""If the user has not pressed any key for this amount of time (in</span>
<span class="sd"> seconds), and the current grammar has not been evaluated, then</span>
<span class="sd"> the eval demon will evaluate it."""</span>
<span class="n">_EVAL_CHUNK</span> <span class="o">=</span> <span class="mi">15</span>
<span class="sd">"""The number of sentences that should be evaluated by the eval</span>
<span class="sd"> demon each time it runs."""</span>
<span class="n">_EVAL_FREQ</span> <span class="o">=</span> <span class="mf">0.2</span>
<span class="sd">"""The frequency (in seconds) at which the eval demon is run"""</span>
<span class="n">_EVAL_DEMON_MIN</span> <span class="o">=</span> <span class="mf">0.02</span>
<span class="sd">"""The minimum amount of time that the eval demon should take each time</span>
<span class="sd"> it runs -- if it takes less than this time, _EVAL_CHUNK will be</span>
<span class="sd"> modified upwards."""</span>
<span class="n">_EVAL_DEMON_MAX</span> <span class="o">=</span> <span class="mf">0.04</span>
<span class="sd">"""The maximum amount of time that the eval demon should take each time</span>
<span class="sd"> it runs -- if it takes more than this time, _EVAL_CHUNK will be</span>
<span class="sd"> modified downwards."""</span>
<span class="n">_GRAMMARBOX_PARAMS</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">(</span>
<span class="n">width</span><span class="o">=</span><span class="mi">40</span><span class="p">,</span>
<span class="n">height</span><span class="o">=</span><span class="mi">12</span><span class="p">,</span>
<span class="n">background</span><span class="o">=</span><span class="s2">"#efe"</span><span class="p">,</span>
<span class="n">highlightbackground</span><span class="o">=</span><span class="s2">"#efe"</span><span class="p">,</span>
<span class="n">highlightthickness</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span>
<span class="n">relief</span><span class="o">=</span><span class="s2">"groove"</span><span class="p">,</span>
<span class="n">border</span><span class="o">=</span><span class="mi">2</span><span class="p">,</span>
<span class="n">wrap</span><span class="o">=</span><span class="s2">"word"</span><span class="p">,</span>
<span class="p">)</span>
<span class="n">_HELPBOX_PARAMS</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">(</span>
<span class="n">width</span><span class="o">=</span><span class="mi">15</span><span class="p">,</span>
<span class="n">height</span><span class="o">=</span><span class="mi">15</span><span class="p">,</span>
<span class="n">background</span><span class="o">=</span><span class="s2">"#efe"</span><span class="p">,</span>
<span class="n">highlightbackground</span><span class="o">=</span><span class="s2">"#efe"</span><span class="p">,</span>
<span class="n">foreground</span><span class="o">=</span><span class="s2">"#555"</span><span class="p">,</span>
<span class="n">highlightthickness</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span>
<span class="n">relief</span><span class="o">=</span><span class="s2">"groove"</span><span class="p">,</span>
<span class="n">border</span><span class="o">=</span><span class="mi">2</span><span class="p">,</span>
<span class="n">wrap</span><span class="o">=</span><span class="s2">"word"</span><span class="p">,</span>
<span class="p">)</span>
<span class="n">_DEVSETBOX_PARAMS</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">(</span>
<span class="n">width</span><span class="o">=</span><span class="mi">70</span><span class="p">,</span>
<span class="n">height</span><span class="o">=</span><span class="mi">10</span><span class="p">,</span>
<span class="n">background</span><span class="o">=</span><span class="s2">"#eef"</span><span class="p">,</span>
<span class="n">highlightbackground</span><span class="o">=</span><span class="s2">"#eef"</span><span class="p">,</span>
<span class="n">highlightthickness</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span>
<span class="n">relief</span><span class="o">=</span><span class="s2">"groove"</span><span class="p">,</span>
<span class="n">border</span><span class="o">=</span><span class="mi">2</span><span class="p">,</span>
<span class="n">wrap</span><span class="o">=</span><span class="s2">"word"</span><span class="p">,</span>
<span class="n">tabs</span><span class="o">=</span><span class="p">(</span><span class="mi">30</span><span class="p">,),</span>
<span class="p">)</span>
<span class="n">_STATUS_PARAMS</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">(</span><span class="n">background</span><span class="o">=</span><span class="s2">"#9bb"</span><span class="p">,</span> <span class="n">relief</span><span class="o">=</span><span class="s2">"groove"</span><span class="p">,</span> <span class="n">border</span><span class="o">=</span><span class="mi">2</span><span class="p">)</span>
<span class="n">_FONT_PARAMS</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">(</span><span class="n">family</span><span class="o">=</span><span class="s2">"helvetica"</span><span class="p">,</span> <span class="n">size</span><span class="o">=-</span><span class="mi">20</span><span class="p">)</span>
<span class="n">_FRAME_PARAMS</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">(</span><span class="n">background</span><span class="o">=</span><span class="s2">"#777"</span><span class="p">,</span> <span class="n">padx</span><span class="o">=</span><span class="mi">2</span><span class="p">,</span> <span class="n">pady</span><span class="o">=</span><span class="mi">2</span><span class="p">,</span> <span class="n">border</span><span class="o">=</span><span class="mi">3</span><span class="p">)</span>
<span class="n">_EVALBOX_PARAMS</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">(</span>
<span class="n">background</span><span class="o">=</span><span class="s2">"#eef"</span><span class="p">,</span>
<span class="n">highlightbackground</span><span class="o">=</span><span class="s2">"#eef"</span><span class="p">,</span>
<span class="n">highlightthickness</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span>
<span class="n">relief</span><span class="o">=</span><span class="s2">"groove"</span><span class="p">,</span>
<span class="n">border</span><span class="o">=</span><span class="mi">2</span><span class="p">,</span>
<span class="n">width</span><span class="o">=</span><span class="mi">300</span><span class="p">,</span>
<span class="n">height</span><span class="o">=</span><span class="mi">280</span><span class="p">,</span>
<span class="p">)</span>
<span class="n">_BUTTON_PARAMS</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">(</span>
<span class="n">background</span><span class="o">=</span><span class="s2">"#777"</span><span class="p">,</span> <span class="n">activebackground</span><span class="o">=</span><span class="s2">"#777"</span><span class="p">,</span> <span class="n">highlightbackground</span><span class="o">=</span><span class="s2">"#777"</span>
<span class="p">)</span>
<span class="n">_HELPTAB_BG_COLOR</span> <span class="o">=</span> <span class="s2">"#aba"</span>
<span class="n">_HELPTAB_FG_COLOR</span> <span class="o">=</span> <span class="s2">"#efe"</span>
<span class="n">_HELPTAB_FG_PARAMS</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">(</span><span class="n">background</span><span class="o">=</span><span class="s2">"#efe"</span><span class="p">)</span>
<span class="n">_HELPTAB_BG_PARAMS</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">(</span><span class="n">background</span><span class="o">=</span><span class="s2">"#aba"</span><span class="p">)</span>
<span class="n">_HELPTAB_SPACER</span> <span class="o">=</span> <span class="mi">6</span>
<span class="k">def</span> <span class="nf">normalize_grammar</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">grammar</span><span class="p">):</span>
<span class="c1"># Strip comments</span>
<span class="n">grammar</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">sub</span><span class="p">(</span><span class="sa">r</span><span class="s2">"((</span><span class="se">\\</span><span class="s2">.|[^#])*)(#.*)?"</span><span class="p">,</span> <span class="sa">r</span><span class="s2">"\1"</span><span class="p">,</span> <span class="n">grammar</span><span class="p">)</span>
<span class="c1"># Normalize whitespace</span>
<span class="n">grammar</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">sub</span><span class="p">(</span><span class="s2">" +"</span><span class="p">,</span> <span class="s2">" "</span><span class="p">,</span> <span class="n">grammar</span><span class="p">)</span>
<span class="n">grammar</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">sub</span><span class="p">(</span><span class="sa">r</span><span class="s2">"\n\s+"</span><span class="p">,</span> <span class="sa">r</span><span class="s2">"\n"</span><span class="p">,</span> <span class="n">grammar</span><span class="p">)</span>
<span class="n">grammar</span> <span class="o">=</span> <span class="n">grammar</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span>
<span class="c1"># [xx] Hack: automatically backslash $!</span>
<span class="n">grammar</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">sub</span><span class="p">(</span><span class="sa">r</span><span class="s2">"([^</span><span class="se">\\</span><span class="s2">])\$"</span><span class="p">,</span> <span class="sa">r</span><span class="s2">"\1</span><span class="se">\\</span><span class="s2">$"</span><span class="p">,</span> <span class="n">grammar</span><span class="p">)</span>
<span class="k">return</span> <span class="n">grammar</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span>
<span class="bp">self</span><span class="p">,</span>
<span class="n">devset_name</span><span class="o">=</span><span class="s2">"conll2000"</span><span class="p">,</span>
<span class="n">devset</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
<span class="n">grammar</span><span class="o">=</span><span class="s2">""</span><span class="p">,</span>
<span class="n">chunk_label</span><span class="o">=</span><span class="s2">"NP"</span><span class="p">,</span>
<span class="n">tagset</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
<span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> :param devset_name: The name of the development set; used for</span>
<span class="sd"> display & for save files. If either the name 'treebank'</span>
<span class="sd"> or the name 'conll2000' is used, and devset is None, then</span>
<span class="sd"> devset will be set automatically.</span>
<span class="sd"> :param devset: A list of chunked sentences</span>
<span class="sd"> :param grammar: The initial grammar to display.</span>
<span class="sd"> :param tagset: Dictionary from tags to string descriptions, used</span>
<span class="sd"> for the help page. Defaults to ``self.TAGSET``.</span>
<span class="sd"> """</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_chunk_label</span> <span class="o">=</span> <span class="n">chunk_label</span>
<span class="k">if</span> <span class="n">tagset</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">tagset</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">TAGSET</span>
<span class="bp">self</span><span class="o">.</span><span class="n">tagset</span> <span class="o">=</span> <span class="n">tagset</span>
<span class="c1"># Named development sets:</span>
<span class="k">if</span> <span class="n">devset</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">if</span> <span class="n">devset_name</span> <span class="o">==</span> <span class="s2">"conll2000"</span><span class="p">:</span>
<span class="n">devset</span> <span class="o">=</span> <span class="n">conll2000</span><span class="o">.</span><span class="n">chunked_sents</span><span class="p">(</span><span class="s2">"train.txt"</span><span class="p">)</span> <span class="c1"># [:100]</span>
<span class="k">elif</span> <span class="n">devset</span> <span class="o">==</span> <span class="s2">"treebank"</span><span class="p">:</span>
<span class="n">devset</span> <span class="o">=</span> <span class="n">treebank_chunk</span><span class="o">.</span><span class="n">chunked_sents</span><span class="p">()</span> <span class="c1"># [:100]</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s2">"Unknown development set </span><span class="si">%s</span><span class="s2">"</span> <span class="o">%</span> <span class="n">devset_name</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">chunker</span> <span class="o">=</span> <span class="kc">None</span>
<span class="sd">"""The chunker built from the grammar string"""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">grammar</span> <span class="o">=</span> <span class="n">grammar</span>
<span class="sd">"""The unparsed grammar string"""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">normalized_grammar</span> <span class="o">=</span> <span class="kc">None</span>
<span class="sd">"""A normalized version of ``self.grammar``."""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">grammar_changed</span> <span class="o">=</span> <span class="mi">0</span>
<span class="sd">"""The last time() that the grammar was changed."""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">devset</span> <span class="o">=</span> <span class="n">devset</span>
<span class="sd">"""The development set -- a list of chunked sentences."""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">devset_name</span> <span class="o">=</span> <span class="n">devset_name</span>
<span class="sd">"""The name of the development set (for save files)."""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">devset_index</span> <span class="o">=</span> <span class="o">-</span><span class="mi">1</span>
<span class="sd">"""The index into the development set of the first instance</span>
<span class="sd"> that's currently being viewed."""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_last_keypress</span> <span class="o">=</span> <span class="mi">0</span>
<span class="sd">"""The time() when a key was most recently pressed"""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_history</span> <span class="o">=</span> <span class="p">[]</span>
<span class="sd">"""A list of (grammar, precision, recall, fscore) tuples for</span>
<span class="sd"> grammars that the user has already tried."""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_history_index</span> <span class="o">=</span> <span class="mi">0</span>
<span class="sd">"""When the user is scrolling through previous grammars, this</span>
<span class="sd"> is used to keep track of which grammar they're looking at."""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_grammar</span> <span class="o">=</span> <span class="kc">None</span>
<span class="sd">"""The grammar that is being currently evaluated by the eval</span>
<span class="sd"> demon."""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_normalized_grammar</span> <span class="o">=</span> <span class="kc">None</span>
<span class="sd">"""A normalized copy of ``_eval_grammar``."""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_index</span> <span class="o">=</span> <span class="mi">0</span>
<span class="sd">"""The index of the next sentence in the development set that</span>
<span class="sd"> should be looked at by the eval demon."""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_score</span> <span class="o">=</span> <span class="n">ChunkScore</span><span class="p">(</span><span class="n">chunk_label</span><span class="o">=</span><span class="n">chunk_label</span><span class="p">)</span>
<span class="sd">"""The ``ChunkScore`` object that's used to keep track of the score</span>
<span class="sd"> of the current grammar on the development set."""</span>
<span class="c1"># Set up the main window.</span>
<span class="n">top</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">top</span> <span class="o">=</span> <span class="n">Tk</span><span class="p">()</span>
<span class="n">top</span><span class="o">.</span><span class="n">geometry</span><span class="p">(</span><span class="s2">"+50+50"</span><span class="p">)</span>
<span class="n">top</span><span class="o">.</span><span class="n">title</span><span class="p">(</span><span class="s2">"Regexp Chunk Parser App"</span><span class="p">)</span>
<span class="n">top</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span><span class="s2">"<Control-q>"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">destroy</span><span class="p">)</span>
<span class="c1"># Variable that restricts how much of the devset we look at.</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_devset_size</span> <span class="o">=</span> <span class="n">IntVar</span><span class="p">(</span><span class="n">top</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_devset_size</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="mi">100</span><span class="p">)</span>
<span class="c1"># Set up all the tkinter widgets</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_init_fonts</span><span class="p">(</span><span class="n">top</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_init_widgets</span><span class="p">(</span><span class="n">top</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_init_bindings</span><span class="p">(</span><span class="n">top</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_init_menubar</span><span class="p">(</span><span class="n">top</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">grammarbox</span><span class="o">.</span><span class="n">focus</span><span class="p">()</span>
<span class="c1"># If a grammar was given, then display it.</span>
<span class="k">if</span> <span class="n">grammar</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">grammarbox</span><span class="o">.</span><span class="n">insert</span><span class="p">(</span><span class="s2">"end"</span><span class="p">,</span> <span class="n">grammar</span> <span class="o">+</span> <span class="s2">"</span><span class="se">\n</span><span class="s2">"</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">grammarbox</span><span class="o">.</span><span class="n">mark_set</span><span class="p">(</span><span class="s2">"insert"</span><span class="p">,</span> <span class="s2">"1.0"</span><span class="p">)</span>
<span class="c1"># Display the first item in the development set</span>
<span class="bp">self</span><span class="o">.</span><span class="n">show_devset</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">update</span><span class="p">()</span>
<span class="k">def</span> <span class="nf">_init_bindings</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">top</span><span class="p">):</span>
<span class="n">top</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span><span class="s2">"<Control-n>"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_devset_next</span><span class="p">)</span>
<span class="n">top</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span><span class="s2">"<Control-p>"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_devset_prev</span><span class="p">)</span>
<span class="n">top</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span><span class="s2">"<Control-t>"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">toggle_show_trace</span><span class="p">)</span>
<span class="n">top</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span><span class="s2">"<KeyPress>"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">update</span><span class="p">)</span>
<span class="n">top</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span><span class="s2">"<Control-s>"</span><span class="p">,</span> <span class="k">lambda</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">save_grammar</span><span class="p">())</span>
<span class="n">top</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span><span class="s2">"<Control-o>"</span><span class="p">,</span> <span class="k">lambda</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">load_grammar</span><span class="p">())</span>
<span class="bp">self</span><span class="o">.</span><span class="n">grammarbox</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span><span class="s2">"<Control-t>"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">toggle_show_trace</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">grammarbox</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span><span class="s2">"<Control-n>"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_devset_next</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">grammarbox</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span><span class="s2">"<Control-p>"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_devset_prev</span><span class="p">)</span>
<span class="c1"># Redraw the eval graph when the window size changes</span>
<span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span><span class="s2">"<Configure>"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_eval_plot</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">_init_fonts</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">top</span><span class="p">):</span>
<span class="c1"># TWhat's our font size (default=same as sysfont)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_size</span> <span class="o">=</span> <span class="n">IntVar</span><span class="p">(</span><span class="n">top</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_size</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="mi">20</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_font</span> <span class="o">=</span> <span class="n">Font</span><span class="p">(</span><span class="n">family</span><span class="o">=</span><span class="s2">"helvetica"</span><span class="p">,</span> <span class="n">size</span><span class="o">=-</span><span class="bp">self</span><span class="o">.</span><span class="n">_size</span><span class="o">.</span><span class="n">get</span><span class="p">())</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_smallfont</span> <span class="o">=</span> <span class="n">Font</span><span class="p">(</span>
<span class="n">family</span><span class="o">=</span><span class="s2">"helvetica"</span><span class="p">,</span> <span class="n">size</span><span class="o">=-</span><span class="p">(</span><span class="nb">int</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_size</span><span class="o">.</span><span class="n">get</span><span class="p">()</span> <span class="o">*</span> <span class="mi">14</span> <span class="o">//</span> <span class="mi">20</span><span class="p">))</span>
<span class="p">)</span>
<span class="k">def</span> <span class="nf">_init_menubar</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">parent</span><span class="p">):</span>
<span class="n">menubar</span> <span class="o">=</span> <span class="n">Menu</span><span class="p">(</span><span class="n">parent</span><span class="p">)</span>
<span class="n">filemenu</span> <span class="o">=</span> <span class="n">Menu</span><span class="p">(</span><span class="n">menubar</span><span class="p">,</span> <span class="n">tearoff</span><span class="o">=</span><span class="mi">0</span><span class="p">)</span>
<span class="n">filemenu</span><span class="o">.</span><span class="n">add_command</span><span class="p">(</span><span class="n">label</span><span class="o">=</span><span class="s2">"Reset Application"</span><span class="p">,</span> <span class="n">underline</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">command</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">reset</span><span class="p">)</span>
<span class="n">filemenu</span><span class="o">.</span><span class="n">add_command</span><span class="p">(</span>
<span class="n">label</span><span class="o">=</span><span class="s2">"Save Current Grammar"</span><span class="p">,</span>
<span class="n">underline</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span>
<span class="n">accelerator</span><span class="o">=</span><span class="s2">"Ctrl-s"</span><span class="p">,</span>
<span class="n">command</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">save_grammar</span><span class="p">,</span>
<span class="p">)</span>
<span class="n">filemenu</span><span class="o">.</span><span class="n">add_command</span><span class="p">(</span>
<span class="n">label</span><span class="o">=</span><span class="s2">"Load Grammar"</span><span class="p">,</span>
<span class="n">underline</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span>
<span class="n">accelerator</span><span class="o">=</span><span class="s2">"Ctrl-o"</span><span class="p">,</span>
<span class="n">command</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">load_grammar</span><span class="p">,</span>
<span class="p">)</span>
<span class="n">filemenu</span><span class="o">.</span><span class="n">add_command</span><span class="p">(</span>
<span class="n">label</span><span class="o">=</span><span class="s2">"Save Grammar History"</span><span class="p">,</span> <span class="n">underline</span><span class="o">=</span><span class="mi">13</span><span class="p">,</span> <span class="n">command</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">save_history</span>
<span class="p">)</span>
<span class="n">filemenu</span><span class="o">.</span><span class="n">add_command</span><span class="p">(</span>
<span class="n">label</span><span class="o">=</span><span class="s2">"Exit"</span><span class="p">,</span> <span class="n">underline</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">command</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">destroy</span><span class="p">,</span> <span class="n">accelerator</span><span class="o">=</span><span class="s2">"Ctrl-q"</span>
<span class="p">)</span>
<span class="n">menubar</span><span class="o">.</span><span class="n">add_cascade</span><span class="p">(</span><span class="n">label</span><span class="o">=</span><span class="s2">"File"</span><span class="p">,</span> <span class="n">underline</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">menu</span><span class="o">=</span><span class="n">filemenu</span><span class="p">)</span>
<span class="n">viewmenu</span> <span class="o">=</span> <span class="n">Menu</span><span class="p">(</span><span class="n">menubar</span><span class="p">,</span> <span class="n">tearoff</span><span class="o">=</span><span class="mi">0</span><span class="p">)</span>
<span class="n">viewmenu</span><span class="o">.</span><span class="n">add_radiobutton</span><span class="p">(</span>
<span class="n">label</span><span class="o">=</span><span class="s2">"Tiny"</span><span class="p">,</span>
<span class="n">variable</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_size</span><span class="p">,</span>
<span class="n">underline</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span>
<span class="n">value</span><span class="o">=</span><span class="mi">10</span><span class="p">,</span>
<span class="n">command</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">resize</span><span class="p">,</span>
<span class="p">)</span>
<span class="n">viewmenu</span><span class="o">.</span><span class="n">add_radiobutton</span><span class="p">(</span>
<span class="n">label</span><span class="o">=</span><span class="s2">"Small"</span><span class="p">,</span>
<span class="n">variable</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_size</span><span class="p">,</span>
<span class="n">underline</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span>
<span class="n">value</span><span class="o">=</span><span class="mi">16</span><span class="p">,</span>
<span class="n">command</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">resize</span><span class="p">,</span>
<span class="p">)</span>
<span class="n">viewmenu</span><span class="o">.</span><span class="n">add_radiobutton</span><span class="p">(</span>
<span class="n">label</span><span class="o">=</span><span class="s2">"Medium"</span><span class="p">,</span>
<span class="n">variable</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_size</span><span class="p">,</span>
<span class="n">underline</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span>
<span class="n">value</span><span class="o">=</span><span class="mi">20</span><span class="p">,</span>
<span class="n">command</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">resize</span><span class="p">,</span>
<span class="p">)</span>
<span class="n">viewmenu</span><span class="o">.</span><span class="n">add_radiobutton</span><span class="p">(</span>
<span class="n">label</span><span class="o">=</span><span class="s2">"Large"</span><span class="p">,</span>
<span class="n">variable</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_size</span><span class="p">,</span>
<span class="n">underline</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span>
<span class="n">value</span><span class="o">=</span><span class="mi">24</span><span class="p">,</span>
<span class="n">command</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">resize</span><span class="p">,</span>
<span class="p">)</span>
<span class="n">viewmenu</span><span class="o">.</span><span class="n">add_radiobutton</span><span class="p">(</span>
<span class="n">label</span><span class="o">=</span><span class="s2">"Huge"</span><span class="p">,</span>
<span class="n">variable</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_size</span><span class="p">,</span>
<span class="n">underline</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span>
<span class="n">value</span><span class="o">=</span><span class="mi">34</span><span class="p">,</span>
<span class="n">command</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">resize</span><span class="p">,</span>
<span class="p">)</span>
<span class="n">menubar</span><span class="o">.</span><span class="n">add_cascade</span><span class="p">(</span><span class="n">label</span><span class="o">=</span><span class="s2">"View"</span><span class="p">,</span> <span class="n">underline</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">menu</span><span class="o">=</span><span class="n">viewmenu</span><span class="p">)</span>
<span class="n">devsetmenu</span> <span class="o">=</span> <span class="n">Menu</span><span class="p">(</span><span class="n">menubar</span><span class="p">,</span> <span class="n">tearoff</span><span class="o">=</span><span class="mi">0</span><span class="p">)</span>
<span class="n">devsetmenu</span><span class="o">.</span><span class="n">add_radiobutton</span><span class="p">(</span>
<span class="n">label</span><span class="o">=</span><span class="s2">"50 sentences"</span><span class="p">,</span>
<span class="n">variable</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_devset_size</span><span class="p">,</span>
<span class="n">value</span><span class="o">=</span><span class="mi">50</span><span class="p">,</span>
<span class="n">command</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">set_devset_size</span><span class="p">,</span>
<span class="p">)</span>
<span class="n">devsetmenu</span><span class="o">.</span><span class="n">add_radiobutton</span><span class="p">(</span>
<span class="n">label</span><span class="o">=</span><span class="s2">"100 sentences"</span><span class="p">,</span>
<span class="n">variable</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_devset_size</span><span class="p">,</span>
<span class="n">value</span><span class="o">=</span><span class="mi">100</span><span class="p">,</span>
<span class="n">command</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">set_devset_size</span><span class="p">,</span>
<span class="p">)</span>
<span class="n">devsetmenu</span><span class="o">.</span><span class="n">add_radiobutton</span><span class="p">(</span>
<span class="n">label</span><span class="o">=</span><span class="s2">"200 sentences"</span><span class="p">,</span>
<span class="n">variable</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_devset_size</span><span class="p">,</span>
<span class="n">value</span><span class="o">=</span><span class="mi">200</span><span class="p">,</span>
<span class="n">command</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">set_devset_size</span><span class="p">,</span>
<span class="p">)</span>
<span class="n">devsetmenu</span><span class="o">.</span><span class="n">add_radiobutton</span><span class="p">(</span>
<span class="n">label</span><span class="o">=</span><span class="s2">"500 sentences"</span><span class="p">,</span>
<span class="n">variable</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_devset_size</span><span class="p">,</span>
<span class="n">value</span><span class="o">=</span><span class="mi">500</span><span class="p">,</span>
<span class="n">command</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">set_devset_size</span><span class="p">,</span>
<span class="p">)</span>
<span class="n">menubar</span><span class="o">.</span><span class="n">add_cascade</span><span class="p">(</span><span class="n">label</span><span class="o">=</span><span class="s2">"Development-Set"</span><span class="p">,</span> <span class="n">underline</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">menu</span><span class="o">=</span><span class="n">devsetmenu</span><span class="p">)</span>
<span class="n">helpmenu</span> <span class="o">=</span> <span class="n">Menu</span><span class="p">(</span><span class="n">menubar</span><span class="p">,</span> <span class="n">tearoff</span><span class="o">=</span><span class="mi">0</span><span class="p">)</span>
<span class="n">helpmenu</span><span class="o">.</span><span class="n">add_command</span><span class="p">(</span><span class="n">label</span><span class="o">=</span><span class="s2">"About"</span><span class="p">,</span> <span class="n">underline</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">command</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">about</span><span class="p">)</span>
<span class="n">menubar</span><span class="o">.</span><span class="n">add_cascade</span><span class="p">(</span><span class="n">label</span><span class="o">=</span><span class="s2">"Help"</span><span class="p">,</span> <span class="n">underline</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">menu</span><span class="o">=</span><span class="n">helpmenu</span><span class="p">)</span>
<span class="n">parent</span><span class="o">.</span><span class="n">config</span><span class="p">(</span><span class="n">menu</span><span class="o">=</span><span class="n">menubar</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">toggle_show_trace</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="n">e</span><span class="p">):</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_showing_trace</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">show_devset</span><span class="p">()</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">show_trace</span><span class="p">()</span>
<span class="k">return</span> <span class="s2">"break"</span>
<span class="n">_SCALE_N</span> <span class="o">=</span> <span class="mi">5</span> <span class="c1"># center on the last 5 examples.</span>
<span class="n">_DRAW_LINES</span> <span class="o">=</span> <span class="kc">False</span>
<span class="k">def</span> <span class="nf">_eval_plot</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="n">e</span><span class="p">,</span> <span class="o">**</span><span class="n">config</span><span class="p">):</span>
<span class="n">width</span> <span class="o">=</span> <span class="n">config</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"width"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">winfo_width</span><span class="p">())</span>
<span class="n">height</span> <span class="o">=</span> <span class="n">config</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"height"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">winfo_height</span><span class="p">())</span>
<span class="c1"># Clear the canvas</span>
<span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="s2">"all"</span><span class="p">)</span>
<span class="c1"># Draw the precision & recall labels.</span>
<span class="n">tag</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">create_text</span><span class="p">(</span>
<span class="mi">10</span><span class="p">,</span> <span class="n">height</span> <span class="o">//</span> <span class="mi">2</span> <span class="o">-</span> <span class="mi">10</span><span class="p">,</span> <span class="n">justify</span><span class="o">=</span><span class="s2">"left"</span><span class="p">,</span> <span class="n">anchor</span><span class="o">=</span><span class="s2">"w"</span><span class="p">,</span> <span class="n">text</span><span class="o">=</span><span class="s2">"Precision"</span>
<span class="p">)</span>
<span class="n">left</span><span class="p">,</span> <span class="n">right</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">bbox</span><span class="p">(</span><span class="n">tag</span><span class="p">)[</span><span class="mi">2</span><span class="p">]</span> <span class="o">+</span> <span class="mi">5</span><span class="p">,</span> <span class="n">width</span> <span class="o">-</span> <span class="mi">10</span>
<span class="n">tag</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">create_text</span><span class="p">(</span>
<span class="n">left</span> <span class="o">+</span> <span class="p">(</span><span class="n">width</span> <span class="o">-</span> <span class="n">left</span><span class="p">)</span> <span class="o">//</span> <span class="mi">2</span><span class="p">,</span>
<span class="n">height</span> <span class="o">-</span> <span class="mi">10</span><span class="p">,</span>
<span class="n">anchor</span><span class="o">=</span><span class="s2">"s"</span><span class="p">,</span>
<span class="n">text</span><span class="o">=</span><span class="s2">"Recall"</span><span class="p">,</span>
<span class="n">justify</span><span class="o">=</span><span class="s2">"center"</span><span class="p">,</span>
<span class="p">)</span>
<span class="n">top</span><span class="p">,</span> <span class="n">bot</span> <span class="o">=</span> <span class="mi">10</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">bbox</span><span class="p">(</span><span class="n">tag</span><span class="p">)[</span><span class="mi">1</span><span class="p">]</span> <span class="o">-</span> <span class="mi">10</span>
<span class="c1"># Draw masks for clipping the plot.</span>
<span class="n">bg</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_EVALBOX_PARAMS</span><span class="p">[</span><span class="s2">"background"</span><span class="p">]</span>
<span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">lower</span><span class="p">(</span>
<span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">create_rectangle</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="n">left</span> <span class="o">-</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">5000</span><span class="p">,</span> <span class="n">fill</span><span class="o">=</span><span class="n">bg</span><span class="p">,</span> <span class="n">outline</span><span class="o">=</span><span class="n">bg</span><span class="p">)</span>
<span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">lower</span><span class="p">(</span>
<span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">create_rectangle</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">bot</span> <span class="o">+</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">5000</span><span class="p">,</span> <span class="mi">5000</span><span class="p">,</span> <span class="n">fill</span><span class="o">=</span><span class="n">bg</span><span class="p">,</span> <span class="n">outline</span><span class="o">=</span><span class="n">bg</span><span class="p">)</span>
<span class="p">)</span>
<span class="c1"># Calculate the plot's scale.</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_autoscale</span><span class="o">.</span><span class="n">get</span><span class="p">()</span> <span class="ow">and</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_history</span><span class="p">)</span> <span class="o">></span> <span class="mi">1</span><span class="p">:</span>
<span class="n">max_precision</span> <span class="o">=</span> <span class="n">max_recall</span> <span class="o">=</span> <span class="mi">0</span>
<span class="n">min_precision</span> <span class="o">=</span> <span class="n">min_recall</span> <span class="o">=</span> <span class="mi">1</span>
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="nb">min</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_history</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">_SCALE_N</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)):</span>
<span class="n">grammar</span><span class="p">,</span> <span class="n">precision</span><span class="p">,</span> <span class="n">recall</span><span class="p">,</span> <span class="n">fmeasure</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_history</span><span class="p">[</span><span class="o">-</span><span class="n">i</span><span class="p">]</span>
<span class="n">min_precision</span> <span class="o">=</span> <span class="nb">min</span><span class="p">(</span><span class="n">precision</span><span class="p">,</span> <span class="n">min_precision</span><span class="p">)</span>
<span class="n">min_recall</span> <span class="o">=</span> <span class="nb">min</span><span class="p">(</span><span class="n">recall</span><span class="p">,</span> <span class="n">min_recall</span><span class="p">)</span>
<span class="n">max_precision</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="n">precision</span><span class="p">,</span> <span class="n">max_precision</span><span class="p">)</span>
<span class="n">max_recall</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="n">recall</span><span class="p">,</span> <span class="n">max_recall</span><span class="p">)</span>
<span class="c1"># if max_precision-min_precision > max_recall-min_recall:</span>
<span class="c1"># min_recall -= (max_precision-min_precision)/2</span>
<span class="c1"># max_recall += (max_precision-min_precision)/2</span>
<span class="c1"># else:</span>
<span class="c1"># min_precision -= (max_recall-min_recall)/2</span>
<span class="c1"># max_precision += (max_recall-min_recall)/2</span>
<span class="c1"># if min_recall < 0:</span>
<span class="c1"># max_recall -= min_recall</span>
<span class="c1"># min_recall = 0</span>
<span class="c1"># if min_precision < 0:</span>
<span class="c1"># max_precision -= min_precision</span>
<span class="c1"># min_precision = 0</span>
<span class="n">min_precision</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="n">min_precision</span> <span class="o">-</span> <span class="mf">0.01</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="n">min_recall</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="n">min_recall</span> <span class="o">-</span> <span class="mf">0.01</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="n">max_precision</span> <span class="o">=</span> <span class="nb">min</span><span class="p">(</span><span class="n">max_precision</span> <span class="o">+</span> <span class="mf">0.01</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
<span class="n">max_recall</span> <span class="o">=</span> <span class="nb">min</span><span class="p">(</span><span class="n">max_recall</span> <span class="o">+</span> <span class="mf">0.01</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">min_precision</span> <span class="o">=</span> <span class="n">min_recall</span> <span class="o">=</span> <span class="mi">0</span>
<span class="n">max_precision</span> <span class="o">=</span> <span class="n">max_recall</span> <span class="o">=</span> <span class="mi">1</span>
<span class="c1"># Draw the axis lines & grid lines</span>
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">11</span><span class="p">):</span>
<span class="n">x</span> <span class="o">=</span> <span class="n">left</span> <span class="o">+</span> <span class="p">(</span><span class="n">right</span> <span class="o">-</span> <span class="n">left</span><span class="p">)</span> <span class="o">*</span> <span class="p">(</span>
<span class="p">(</span><span class="n">i</span> <span class="o">/</span> <span class="mf">10.0</span> <span class="o">-</span> <span class="n">min_recall</span><span class="p">)</span> <span class="o">/</span> <span class="p">(</span><span class="n">max_recall</span> <span class="o">-</span> <span class="n">min_recall</span><span class="p">)</span>
<span class="p">)</span>
<span class="n">y</span> <span class="o">=</span> <span class="n">bot</span> <span class="o">-</span> <span class="p">(</span><span class="n">bot</span> <span class="o">-</span> <span class="n">top</span><span class="p">)</span> <span class="o">*</span> <span class="p">(</span>
<span class="p">(</span><span class="n">i</span> <span class="o">/</span> <span class="mf">10.0</span> <span class="o">-</span> <span class="n">min_precision</span><span class="p">)</span> <span class="o">/</span> <span class="p">(</span><span class="n">max_precision</span> <span class="o">-</span> <span class="n">min_precision</span><span class="p">)</span>
<span class="p">)</span>
<span class="k">if</span> <span class="n">left</span> <span class="o"><</span> <span class="n">x</span> <span class="o"><</span> <span class="n">right</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">create_line</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">top</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">bot</span><span class="p">,</span> <span class="n">fill</span><span class="o">=</span><span class="s2">"#888"</span><span class="p">)</span>
<span class="k">if</span> <span class="n">top</span> <span class="o"><</span> <span class="n">y</span> <span class="o"><</span> <span class="n">bot</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">create_line</span><span class="p">(</span><span class="n">left</span><span class="p">,</span> <span class="n">y</span><span class="p">,</span> <span class="n">right</span><span class="p">,</span> <span class="n">y</span><span class="p">,</span> <span class="n">fill</span><span class="o">=</span><span class="s2">"#888"</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">create_line</span><span class="p">(</span><span class="n">left</span><span class="p">,</span> <span class="n">top</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">bot</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">create_line</span><span class="p">(</span><span class="n">left</span><span class="p">,</span> <span class="n">bot</span><span class="p">,</span> <span class="n">right</span><span class="p">,</span> <span class="n">bot</span><span class="p">)</span>
<span class="c1"># Display the plot's scale</span>
<span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">create_text</span><span class="p">(</span>
<span class="n">left</span> <span class="o">-</span> <span class="mi">3</span><span class="p">,</span>
<span class="n">bot</span><span class="p">,</span>
<span class="n">justify</span><span class="o">=</span><span class="s2">"right"</span><span class="p">,</span>
<span class="n">anchor</span><span class="o">=</span><span class="s2">"se"</span><span class="p">,</span>
<span class="n">text</span><span class="o">=</span><span class="s2">"</span><span class="si">%d%%</span><span class="s2">"</span> <span class="o">%</span> <span class="p">(</span><span class="mi">100</span> <span class="o">*</span> <span class="n">min_precision</span><span class="p">),</span>
<span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">create_text</span><span class="p">(</span>
<span class="n">left</span> <span class="o">-</span> <span class="mi">3</span><span class="p">,</span>
<span class="n">top</span><span class="p">,</span>
<span class="n">justify</span><span class="o">=</span><span class="s2">"right"</span><span class="p">,</span>
<span class="n">anchor</span><span class="o">=</span><span class="s2">"ne"</span><span class="p">,</span>
<span class="n">text</span><span class="o">=</span><span class="s2">"</span><span class="si">%d%%</span><span class="s2">"</span> <span class="o">%</span> <span class="p">(</span><span class="mi">100</span> <span class="o">*</span> <span class="n">max_precision</span><span class="p">),</span>
<span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">create_text</span><span class="p">(</span>
<span class="n">left</span><span class="p">,</span>
<span class="n">bot</span> <span class="o">+</span> <span class="mi">3</span><span class="p">,</span>
<span class="n">justify</span><span class="o">=</span><span class="s2">"center"</span><span class="p">,</span>
<span class="n">anchor</span><span class="o">=</span><span class="s2">"nw"</span><span class="p">,</span>
<span class="n">text</span><span class="o">=</span><span class="s2">"</span><span class="si">%d%%</span><span class="s2">"</span> <span class="o">%</span> <span class="p">(</span><span class="mi">100</span> <span class="o">*</span> <span class="n">min_recall</span><span class="p">),</span>
<span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">create_text</span><span class="p">(</span>
<span class="n">right</span><span class="p">,</span>
<span class="n">bot</span> <span class="o">+</span> <span class="mi">3</span><span class="p">,</span>
<span class="n">justify</span><span class="o">=</span><span class="s2">"center"</span><span class="p">,</span>
<span class="n">anchor</span><span class="o">=</span><span class="s2">"ne"</span><span class="p">,</span>
<span class="n">text</span><span class="o">=</span><span class="s2">"</span><span class="si">%d%%</span><span class="s2">"</span> <span class="o">%</span> <span class="p">(</span><span class="mi">100</span> <span class="o">*</span> <span class="n">max_recall</span><span class="p">),</span>
<span class="p">)</span>
<span class="c1"># Display the scores.</span>
<span class="n">prev_x</span> <span class="o">=</span> <span class="n">prev_y</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="p">(</span><span class="n">_</span><span class="p">,</span> <span class="n">precision</span><span class="p">,</span> <span class="n">recall</span><span class="p">,</span> <span class="n">fscore</span><span class="p">)</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_history</span><span class="p">):</span>
<span class="n">x</span> <span class="o">=</span> <span class="n">left</span> <span class="o">+</span> <span class="p">(</span><span class="n">right</span> <span class="o">-</span> <span class="n">left</span><span class="p">)</span> <span class="o">*</span> <span class="p">(</span>
<span class="p">(</span><span class="n">recall</span> <span class="o">-</span> <span class="n">min_recall</span><span class="p">)</span> <span class="o">/</span> <span class="p">(</span><span class="n">max_recall</span> <span class="o">-</span> <span class="n">min_recall</span><span class="p">)</span>
<span class="p">)</span>
<span class="n">y</span> <span class="o">=</span> <span class="n">bot</span> <span class="o">-</span> <span class="p">(</span><span class="n">bot</span> <span class="o">-</span> <span class="n">top</span><span class="p">)</span> <span class="o">*</span> <span class="p">(</span>
<span class="p">(</span><span class="n">precision</span> <span class="o">-</span> <span class="n">min_precision</span><span class="p">)</span> <span class="o">/</span> <span class="p">(</span><span class="n">max_precision</span> <span class="o">-</span> <span class="n">min_precision</span><span class="p">)</span>
<span class="p">)</span>
<span class="k">if</span> <span class="n">i</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">_history_index</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">create_oval</span><span class="p">(</span>
<span class="n">x</span> <span class="o">-</span> <span class="mi">2</span><span class="p">,</span> <span class="n">y</span> <span class="o">-</span> <span class="mi">2</span><span class="p">,</span> <span class="n">x</span> <span class="o">+</span> <span class="mi">2</span><span class="p">,</span> <span class="n">y</span> <span class="o">+</span> <span class="mi">2</span><span class="p">,</span> <span class="n">fill</span><span class="o">=</span><span class="s2">"#0f0"</span><span class="p">,</span> <span class="n">outline</span><span class="o">=</span><span class="s2">"#000"</span>
<span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">status</span><span class="p">[</span><span class="s2">"text"</span><span class="p">]</span> <span class="o">=</span> <span class="p">(</span>
<span class="s2">"Precision: </span><span class="si">%.2f%%</span><span class="se">\t</span><span class="s2">"</span> <span class="o">%</span> <span class="p">(</span><span class="n">precision</span> <span class="o">*</span> <span class="mi">100</span><span class="p">)</span>
<span class="o">+</span> <span class="s2">"Recall: </span><span class="si">%.2f%%</span><span class="se">\t</span><span class="s2">"</span> <span class="o">%</span> <span class="p">(</span><span class="n">recall</span> <span class="o">*</span> <span class="mi">100</span><span class="p">)</span>
<span class="o">+</span> <span class="s2">"F-score: </span><span class="si">%.2f%%</span><span class="s2">"</span> <span class="o">%</span> <span class="p">(</span><span class="n">fscore</span> <span class="o">*</span> <span class="mi">100</span><span class="p">)</span>
<span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">lower</span><span class="p">(</span>
<span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">create_oval</span><span class="p">(</span>
<span class="n">x</span> <span class="o">-</span> <span class="mi">2</span><span class="p">,</span> <span class="n">y</span> <span class="o">-</span> <span class="mi">2</span><span class="p">,</span> <span class="n">x</span> <span class="o">+</span> <span class="mi">2</span><span class="p">,</span> <span class="n">y</span> <span class="o">+</span> <span class="mi">2</span><span class="p">,</span> <span class="n">fill</span><span class="o">=</span><span class="s2">"#afa"</span><span class="p">,</span> <span class="n">outline</span><span class="o">=</span><span class="s2">"#8c8"</span>
<span class="p">)</span>
<span class="p">)</span>
<span class="k">if</span> <span class="n">prev_x</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">_eval_lines</span><span class="o">.</span><span class="n">get</span><span class="p">():</span>
<span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">lower</span><span class="p">(</span>
<span class="bp">self</span><span class="o">.</span><span class="n">evalbox</span><span class="o">.</span><span class="n">create_line</span><span class="p">(</span><span class="n">prev_x</span><span class="p">,</span> <span class="n">prev_y</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">,</span> <span class="n">fill</span><span class="o">=</span><span class="s2">"#8c8"</span><span class="p">)</span>
<span class="p">)</span>
<span class="n">prev_x</span><span class="p">,</span> <span class="n">prev_y</span> <span class="o">=</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span>
<span class="n">_eval_demon_running</span> <span class="o">=</span> <span class="kc">False</span>
<span class="k">def</span> <span class="nf">_eval_demon</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">top</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">return</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">chunker</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_demon_running</span> <span class="o">=</span> <span class="kc">False</span>
<span class="k">return</span>
<span class="c1"># Note our starting time.</span>
<span class="n">t0</span> <span class="o">=</span> <span class="n">time</span><span class="o">.</span><span class="n">time</span><span class="p">()</span>
<span class="c1"># If are still typing, then wait for them to finish.</span>
<span class="k">if</span> <span class="p">(</span>
<span class="n">time</span><span class="o">.</span><span class="n">time</span><span class="p">()</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">_last_keypress</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">_EVAL_DELAY</span>
<span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">normalized_grammar</span> <span class="o">!=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_eval_normalized_grammar</span>
<span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_demon_running</span> <span class="o">=</span> <span class="kc">True</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">top</span><span class="o">.</span><span class="n">after</span><span class="p">(</span><span class="nb">int</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_EVAL_FREQ</span> <span class="o">*</span> <span class="mi">1000</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">_eval_demon</span><span class="p">)</span>
<span class="c1"># If the grammar changed, restart the evaluation.</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">normalized_grammar</span> <span class="o">!=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_eval_normalized_grammar</span><span class="p">:</span>
<span class="c1"># Check if we've seen this grammar already. If so, then</span>
<span class="c1"># just use the old evaluation values.</span>
<span class="k">for</span> <span class="p">(</span><span class="n">g</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">r</span><span class="p">,</span> <span class="n">f</span><span class="p">)</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_history</span><span class="p">:</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">normalized_grammar</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">normalize_grammar</span><span class="p">(</span><span class="n">g</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_history</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">g</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">r</span><span class="p">,</span> <span class="n">f</span><span class="p">))</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_history_index</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_history</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_plot</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_demon_running</span> <span class="o">=</span> <span class="kc">False</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_normalized_grammar</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">return</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_index</span> <span class="o">=</span> <span class="mi">0</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_score</span> <span class="o">=</span> <span class="n">ChunkScore</span><span class="p">(</span><span class="n">chunk_label</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_chunk_label</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_grammar</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">grammar</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_normalized_grammar</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">normalized_grammar</span>
<span class="c1"># If the grammar is empty, the don't bother evaluating it, or</span>
<span class="c1"># recording it in history -- the score will just be 0.</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">normalized_grammar</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span> <span class="o">==</span> <span class="s2">""</span><span class="p">:</span>
<span class="c1"># self._eval_index = self._devset_size.get()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_demon_running</span> <span class="o">=</span> <span class="kc">False</span>
<span class="k">return</span>
<span class="c1"># Score the next set of examples</span>
<span class="k">for</span> <span class="n">gold</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">devset</span><span class="p">[</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_index</span> <span class="p">:</span> <span class="nb">min</span><span class="p">(</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_index</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">_EVAL_CHUNK</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_devset_size</span><span class="o">.</span><span class="n">get</span><span class="p">()</span>
<span class="p">)</span>
<span class="p">]:</span>
<span class="n">guess</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_chunkparse</span><span class="p">(</span><span class="n">gold</span><span class="o">.</span><span class="n">leaves</span><span class="p">())</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_score</span><span class="o">.</span><span class="n">score</span><span class="p">(</span><span class="n">gold</span><span class="p">,</span> <span class="n">guess</span><span class="p">)</span>
<span class="c1"># update our index in the devset.</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_index</span> <span class="o">+=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_EVAL_CHUNK</span>
<span class="c1"># Check if we're done</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_eval_index</span> <span class="o">>=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_devset_size</span><span class="o">.</span><span class="n">get</span><span class="p">():</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_history</span><span class="o">.</span><span class="n">append</span><span class="p">(</span>
<span class="p">(</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_grammar</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_score</span><span class="o">.</span><span class="n">precision</span><span class="p">(),</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_score</span><span class="o">.</span><span class="n">recall</span><span class="p">(),</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_score</span><span class="o">.</span><span class="n">f_measure</span><span class="p">(),</span>
<span class="p">)</span>
<span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_history_index</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_history</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_plot</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_demon_running</span> <span class="o">=</span> <span class="kc">False</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_normalized_grammar</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">progress</span> <span class="o">=</span> <span class="mi">100</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">_eval_index</span> <span class="o">/</span> <span class="bp">self</span><span class="o">.</span><span class="n">_devset_size</span><span class="o">.</span><span class="n">get</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">status</span><span class="p">[</span><span class="s2">"text"</span><span class="p">]</span> <span class="o">=</span> <span class="s2">"Evaluating on Development Set (</span><span class="si">%d%%</span><span class="s2">)"</span> <span class="o">%</span> <span class="n">progress</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_eval_demon_running</span> <span class="o">=</span> <span class="kc">True</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_adaptively_modify_eval_chunk</span><span class="p">(</span><span class="n">time</span><span class="o">.</span><span class="n">time</span><span class="p">()</span> <span class="o">-</span> <span class="n">t0</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">top</span><span class="o">.</span><span class="n">after</span><span class="p">(</span><span class="nb">int</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_EVAL_FREQ</span> <span class="o">*</span> <span class="mi">1000</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">_eval_demon</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">_adaptively_modify_eval_chunk</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">t</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Modify _EVAL_CHUNK to try to keep the amount of time that the</span>
<span class="sd"> eval demon takes between _EVAL_DEMON_MIN and _EVAL_DEMON_MAX.</span>
<span class="sd"> :param t: The amount of time that the eval demon took.</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="n">t</span> <span class="o">></span> <span class="bp">self</span><span class="o">.</span><span class="n">_EVAL_DEMON_MAX</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">_EVAL_CHUNK</span> <span class="o">></span> <span class="mi">5</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_EVAL_CHUNK</span> <span class="o">=</span> <span class="nb">min</span><span class="p">(</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_EVAL_CHUNK</span> <span class="o">-</span> <span class="mi">1</span><span class="p">,</span>
<span class="nb">max</span><span class="p">(</span>
<span class="nb">int</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_EVAL_CHUNK</span> <span class="o">*</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_EVAL_DEMON_MAX</span> <span class="o">/</span> <span class="n">t</span><span class="p">)),</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_EVAL_CHUNK</span> <span class="o">-</span> <span class="mi">10</span><span class="p">,</span>
<span class="p">),</span>
<span class="p">)</span>
<span class="k">elif</span> <span class="n">t</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">_EVAL_DEMON_MIN</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_EVAL_CHUNK</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_EVAL_CHUNK</span> <span class="o">+</span> <span class="mi">1</span><span class="p">,</span>
<span class="nb">min</span><span class="p">(</span>
<span class="nb">int</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_EVAL_CHUNK</span> <span class="o">*</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_EVAL_DEMON_MIN</span> <span class="o">/</span> <span class="n">t</span><span class="p">)),</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_EVAL_CHUNK</span> <span class="o">+</span> <span class="mi">10</span><span class="p">,</span>
<span class="p">),</span>
<span class="p">)</span>
<span class="k">def</span> <span class="nf">_init_widgets</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">top</span><span class="p">):</span>
<span class="n">frame0</span> <span class="o">=</span> <span class="n">Frame</span><span class="p">(</span><span class="n">top</span><span class="p">,</span> <span class="o">**</span><span class="bp">self</span><span class="o">.</span><span class="n">_FRAME_PARAMS</span><span class="p">)</span>
<span class="n">frame0</span><span class="o">.</span><span class="n">grid_columnconfigure</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">weight</span><span class="o">=</span><span class="mi">4</span><span class="p">)</span>
<span class="n">frame0</span><span class="o">.</span><span class="n">grid_columnconfigure</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="n">weight</span><span class="o">=</span><span class="mi">2</span><span class="p">)</span>
<span class="n">frame0</span><span class="o">.</span><span class="n">grid_rowconfigure</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="n">weight</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>
<span class="n">frame0</span><span class="o">.</span><span class="n">grid_rowconfigure</span><span class="p">(</span><span class="mi">5</span><span class="p">,</span> <span class="n">weight</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>
<span class="c1"># The grammar</span>
<span class="bp">self</span><span class="o">.</span><span class="n">grammarbox</span> <span class="o">=</span> <span class="n">Text</span><span class="p">(</span><span class="n">frame0</span><span class="p">,</span> <span class="n">font</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_font</span><span class="p">,</span> <span class="o">**</span><span class="bp">self</span><span class="o">.</span><span class="n">_GRAMMARBOX_PARAMS</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">grammarlabel</span> <span class="o">=</span> <span class="n">Label</span><span class="p">(</span>
<span class="n">frame0</span><span class="p">,</span>
<span class="n">font</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_font</span><span class="p">,</span>
<span class="n">text</span><span class="o">=</span><span class="s2">"Grammar:"</span><span class="p">,</span>
<span class="n">highlightcolor</span><span class="o">=</span><span class="s2">"black"</span><span class="p">,</span>
<span class="n">background</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_GRAMMARBOX_PARAMS</span><span class="p">[</span><span class="s2">"background"</span><span class="p">],</span>
<span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">grammarlabel</span><span class="o">.</span><span class="n">grid</span><span class="p">(</span><span class="n">column</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">row</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">sticky</span><span class="o">=</span><span class="s2">"SW"</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">grammarbox</span><span class="o">.</span><span class="n">grid</span><span class="p">(</span><span class="n">column</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">row</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">sticky</span><span class="o">=</span><span class="s2">"NEWS"</span><span class="p">)</span>
<span class="c1"># Scroll bar for grammar</span>
<span class="n">grammar_scrollbar</span> <span class="o">=</span> <span class="n">Scrollbar</span><span class="p">(</span><span class="n">frame0</span><span class="p">,</span> <span class="n">command</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">grammarbox</span><span class="o">.</span><span class="n">yview</span><span class="p">)</span>
<span class="n">grammar_scrollbar</span><span class="o">.</span><span class="n">grid</span><span class="p">(</span><span class="n">column</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">row</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">sticky</span><span class="o">=</span><span class="s2">"NWS"</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">grammarbox</span><span class="o">.</span><span class="n">config</span><span class="p">(</span><span class="n">yscrollcommand</span><span class="o">=</span><span class="n">grammar_scrollbar</span><span class="o">.</span><span class="n">set</span><span class="p">)</span>
<span class="c1"># grammar buttons</span>
<span class="n">bg</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_FRAME_PARAMS</span><span class="p">[</span><span class="s2">"background"</span><span class="p">]</span>
<span class="n">frame3</span> <span class="o">=</span> <span class="n">Frame</span><span class="p">(</span><span class="n">frame0</span><span class="p">,</span> <span class="n">background</span><span class="o">=</span><span class="n">bg</span><span class="p">)</span>
<span class="n">frame3</span><span class="o">.</span><span class="n">grid</span><span class="p">(</span><span class="n">column</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">row</span><span class="o">=</span><span class="mi">2</span><span class="p">,</span> <span class="n">sticky</span><span class="o">=</span><span class="s2">"EW"</span><span class="p">)</span>
<span class="n">Button</span><span class="p">(</span>
<span class="n">frame3</span><span class="p">,</span>
<span class="n">text</span><span class="o">=</span><span class="s2">"Prev Grammar"</span><span class="p">,</span>
<span class="n">command</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_history_prev</span><span class="p">,</span>
<span class="o">**</span><span class="bp">self</span><span class="o">.</span><span class="n">_BUTTON_PARAMS</span><span class="p">,</span>
<span class="p">)</span><span class="o">.</span><span class="n">pack</span><span class="p">(</span><span class="n">side</span><span class="o">=</span><span class="s2">"left"</span><span class="p">)</span>
<span class="n">Button</span><span class="p">(</span>
<span class="n">frame3</span><span class="p">,</span>
<span class="n">text</span><span class="o">=</span><span class="s2">"Next Grammar"</span><span class="p">,</span>
<span class="n">command</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_history_next</span><span class="p">,</span>
<span class="o">**</span><span class="bp">self</span><span class="o">.</span><span class="n">_BUTTON_PARAMS</span><span class="p">,</span>
<span class="p">)</span><span class="o">.</span><span class="n">pack</span><span class="p">(</span><span class="n">side</span><span class="o">=</span><span class="s2">"left"</span><span class="p">)</span>
<span class="c1"># Help box</span>
<span class="bp">self</span><span class="o">.</span><span class="n">helpbox</span> <span class="o">=</span> <span class="n">Text</span><span class="p">(</span><span class="n">frame0</span><span class="p">,</span> <span class="n">font</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_smallfont</span><span class="p">,</span> <span class="o">**</span><span class="bp">self</span><span class="o">.</span><span class="n">_HELPBOX_PARAMS</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">helpbox</span><span class="o">.</span><span class="n">grid</span><span class="p">(</span><span class="n">column</span><span class="o">=</span><span class="mi">3</span><span class="p">,</span> <span class="n">row</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">sticky</span><span class="o">=</span><span class="s2">"NEWS"</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">helptabs</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">bg</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_FRAME_PARAMS</span><span class="p">[</span><span class="s2">"background"</span><span class="p">]</span>
<span class="n">helptab_frame</span> <span class="o">=</span> <span class="n">Frame</span><span class="p">(</span><span class="n">frame0</span><span class="p">,</span> <span class="n">background</span><span class="o">=</span><span class="n">bg</span><span class="p">)</span>
<span class="n">helptab_frame</span><span class="o">.</span><span class="n">grid</span><span class="p">(</span><span class="n">column</span><span class="o">=</span><span class="mi">3</span><span class="p">,</span> <span class="n">row</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">sticky</span><span class="o">=</span><span class="s2">"SW"</span><span class="p">)</span>
<span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="p">(</span><span class="n">tab</span><span class="p">,</span> <span class="n">tabstops</span><span class="p">,</span> <span class="n">text</span><span class="p">)</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">HELP</span><span class="p">):</span>
<span class="n">label</span> <span class="o">=</span> <span class="n">Label</span><span class="p">(</span><span class="n">helptab_frame</span><span class="p">,</span> <span class="n">text</span><span class="o">=</span><span class="n">tab</span><span class="p">,</span> <span class="n">font</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_smallfont</span><span class="p">)</span>
<span class="n">label</span><span class="o">.</span><span class="n">grid</span><span class="p">(</span><span class="n">column</span><span class="o">=</span><span class="n">i</span> <span class="o">*</span> <span class="mi">2</span><span class="p">,</span> <span class="n">row</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">sticky</span><span class="o">=</span><span class="s2">"S"</span><span class="p">)</span>
<span class="c1"># help_frame.grid_columnconfigure(i, weight=1)</span>
<span class="c1"># label.pack(side='left')</span>
<span class="n">label</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span><span class="s2">"<ButtonPress>"</span><span class="p">,</span> <span class="k">lambda</span> <span class="n">e</span><span class="p">,</span> <span class="n">tab</span><span class="o">=</span><span class="n">tab</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">show_help</span><span class="p">(</span><span class="n">tab</span><span class="p">))</span>
<span class="bp">self</span><span class="o">.</span><span class="n">helptabs</span><span class="p">[</span><span class="n">tab</span><span class="p">]</span> <span class="o">=</span> <span class="n">label</span>
<span class="n">Frame</span><span class="p">(</span>
<span class="n">helptab_frame</span><span class="p">,</span> <span class="n">height</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">width</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_HELPTAB_SPACER</span><span class="p">,</span> <span class="n">background</span><span class="o">=</span><span class="n">bg</span>
<span class="p">)</span><span class="o">.</span><span class="n">grid</span><span class="p">(</span><span class="n">column</span><span class="o">=</span><span class="n">i</span> <span class="o">*</span> <span class="mi">2</span> <span class="o">+</span> <span class="mi">1</span><span class="p">,</span> <span class="n">row</span><span class="o">=</span><span class="mi">0</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">helptabs</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">HELP</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">0</span><span class="p">]]</span><span class="o">.</span><span class="n">configure</span><span class="p">(</span><span class="n">font</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_font</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">helpbox</span><span class="o">.</span><span class="n">tag_config</span><span class="p">(</span><span class="s2">"elide"</span><span class="p">,</span> <span class="n">elide</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
<span class="k">for</span> <span class="p">(</span><span class="n">tag</span><span class="p">,</span> <span class="n">params</span><span class="p">)</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">HELP_AUTOTAG</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">helpbox</span><span class="o">.</span><span class="n">tag_config</span><span class="p">(</span><span class="s2">"tag-</span><span class="si">%s</span><span class="s2">"</span> <span class="o">%</span> <span class="n">tag</span><span class="p">,</span> <span class="o">**</span><span class="n">params</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">show_help</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">HELP</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">0</span><span class="p">])</span>
<span class="c1"># Scroll bar for helpbox</span>
<span class="n">help_scrollbar</span> <span class="o">=</span> <span class="n">Scrollbar</span><span class="p">(</span><span class="n">frame0</span><span class="p">,</span> <span class="n">command</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">helpbox</span><span class="o">.</span><span class="n">yview</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">helpbox</span><span class="o">.</span><span class="n">config</span><span class="p">(</span><span class="n">yscrollcommand</span><span class="o">=</span><span class="n">help_scrollbar</span><span class="o">.</span><span class="n">set</span><span class="p">)</span>
<span class="n">help_scrollbar</span><span class="o">.</span><span class="n">grid</span><span class="p">(</span><span class="n">column</span><span class="o">=</span><span class="mi">4</span><span class="p">,</span> <span class="n">row</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">sticky</span><span class="o">=</span><span class="s2">"NWS"</span><span class="p">)</span>
<span class="c1"># The dev set</span>
<span class="n">frame4</span> <span class="o">=</span> <span class="n">Frame</span><span class="p">(</span><span class="n">frame0</span><span class="p">,</span> <span class="n">background</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_FRAME_PARAMS</span><span class="p">[</span><span class="s2">"background"</span><span class="p">])</span>
<span class="bp">self</span><span class="o">.</span><span class="n">devsetbox</span> <span class="o">=</span> <span class="n">Text</span><span class="p">(</span><span class="n">frame4</span><span class="p">,</span> <span class="n">font</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_font</span><span class="p">,</span> <span class="o">**</span><span class="bp">self</span><span class="o">.</span><span class="n">_DEVSETBOX_PARAMS</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">devsetbox</span><span class="o">.</span><span class="n">pack</span><span class="p">(</span><span class="n">expand</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">fill</span><span class="o">=</span><span class="s2">"both"</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">devsetlabel</span> <span class="o">=</span> <span class="n">Label</span><span class="p">(</span>
<span class="n">frame0</span><span class="p">,</span>
<span class="n">font</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_font</span><span class="p">,</span>
<span class="n">text</span><span class="o">=</span><span class="s2">"Development Set:"</span><span class="p">,</span>
<span class="n">justify</span><span class="o">=</span><span class="s2">"right"</span><span class="p">,</span>
<span class="n">background</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_DEVSETBOX_PARAMS</span><span class="p">[</span><span class="s2">"background"</span><span class="p">],</span>
<span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">devsetlabel</span><span class="o">.</span><span class="n">grid</span><span class="p">(</span><span class="n">column</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">row</span><span class="o">=</span><span class="mi">4</span><span class="p">,</span> <span class="n">sticky</span><span class="o">=</span><span class="s2">"SW"</span><span class="p">)</span>
<span class="n">frame4</span><span class="o">.</span><span class="n">grid</span><span class="p">(</span><span class="n">column</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">row</span><span class="o">=</span><span class="mi">5</span><span class="p">,</span> <span class="n">sticky</span><span class="o">=</span><span class="s2">"NEWS"</span><span class="p">)</span>
<span class="c1"># dev set scrollbars</span>
<span class="bp">self</span><span class="o">.</span><span class="n">devset_scroll</span> <span class="o">=</span> <span class="n">Scrollbar</span><span class="p">(</span><span class="n">frame0</span><span class="p">,</span> <span class="n">command</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_devset_scroll</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">devset_scroll</span><span class="o">.</span><span class="n">grid</span><span class="p">(</span><span class="n">column</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">row</span><span class="o">=</span><span class="mi">5</span><span class="p">,</span> <span class="n">sticky</span><span class="o">=</span><span class="s2">"NWS"</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">devset_xscroll</span> <span class="o">=</span> <span class="n">Scrollbar</span><span class="p">(</span>
<span class="n">frame4</span><span class="p">,</span> <span class="n">command</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">devsetbox</span><span class="o">.</span><span class="n">xview</span><span class="p">,</span> <span class="n">orient</span><span class="o">=</span><span class="s2">"horiz"</span>
<span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">devsetbox</span><span class="p">[</span><span class="s2">"xscrollcommand"</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">devset_xscroll</span><span class="o">.</span><span class="n">set</span>
<span class="bp">self</span><span class="o">.</span><span class="n">devset_xscroll</span><span class="o">.</span><span class="n">pack</span><span class="p">(</span><span class="n">side</span><span class="o">=</span><span class="s2">"bottom"</span><span class="p">,</span> <span class="n">fill</span><span class="o">=</span><span class="s2">"x"</span><span class="p">)</span>
<span class="c1"># dev set buttons</span>
<span class="n">bg</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_FRAME_PARAMS</span><span class="p">[</span><span class="s2">"background"</span><span class="p">]</span>
<span class="n">frame1</span> <span class="o">=</span> <span class="n">Frame</span><span class="p">(</span><span class="n">frame0</span><span class="p">,</span> <span class="n">background</span><span class="o">=</span><span class="n">bg</span><span class="p">)</span>
<span class="n">frame1</span><span class="o">.</span><span class="n">grid</span><span class="p">(</span><span class="n">column</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">row</span><span class="o">=</span><span class="mi">7</span><span class="p">,</span> <span class="n">sticky</span><span class="o">=</span><span class="s2">"EW"</span><span class="p">)</span>
<span class="n">Button</span><span class="p">(</span>
<span class="n">frame1</span><span class="p">,</span>
<span class="n">text</span><span class="o">=</span><span class="s2">"Prev Example (Ctrl-p)"</span><span class="p">,</span>
<span class="n">command</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_devset_prev</span><span class="p">,</span>
<span class="o">**</span><span class="bp">self</span><span class="o">.</span><span class="n">_BUTTON_PARAMS</span><span class="p">,</span>
<span class="p">)</span><span class="o">.</span><span class="n">pack</span><span class="p">(</span><span class="n">side</span><span class="o">=</span><span class="s2">"left"</span><span class="p">)</span>
<span class="n">Button</span><span class="p">(</span>
<span class="n">frame1</span><span class="p">,</span>
<span class="n">text</span><span class="o">=</span><span class="s2">"Next Example (Ctrl-n)"</span><span class="p">,</span>
<span class="n">command</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_devset_next</span><span class="p">,</span>
<span class="o">**</span><span class="bp">self</span><span class="o">.</span><span class="n">_BUTTON_PARAMS</span><span class="p">,</span>
<span class="p">)</span><span class="o">.</span><span class="n">pack</span><span class="p">(</span><span class="n">side</span><span class="o">=</span><span class="s2">"left"</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">devset_button</span> <span class="o">=</span> <span class="n">Button</span><span class="p">(</span>
<span class="n">frame1</span><span class="p">,</span>