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minibar: more documentation (in minibar-api.html)
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src/runtime/javascript/minibar/minibar-api.html
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src/runtime/javascript/minibar/minibar-api.html
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<!DOCTYPE html>
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<html>
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<head>
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<title>GF web services API examples</title>
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<meta charset="UTF-8">
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<style type="text/css">
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body { background: #eee; }
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h1, h2, h3, small, th { font-family: sans-serif; }
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th { text-align: left; }
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h1,h2 { border-bottom: 2px solid black }
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dt { background: #cef; }
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code { background: #ffc; }
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dt.js { background: white; margin-bottom: 1ex; }
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dt.js em { color: #36f; }
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dd { background: #ffc; margin-top: 1ex; margin-bottom: 1ex; }
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dl.apiexamples>dt, dl.apiexamples>dd { font-family: monospace; }
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dl.apiexamples>dd { white-space: pre; }
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table.border { border-collapse: collapse; margin-top: 1ex; margin-bottom: 1ex; }
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table.border td, table.border th { border: 1px solid black; background: #fcfcfc; }
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div.modtime { float: right; }
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.modtime { color: #666; white-space: nowrap; }
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</style>
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<body>
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<h1>Minibar API</h1>
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The minibar is structured as three object:
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<ul>
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<li><a href="#Minibar">Minibar</a>
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<li><a href="#Input">Input</a>
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<li><a href="#Translations">Translations</a>
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</ul>
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They are described below.
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<h2 id=Minibar>The Minibar object</h2>
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<p>
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This is the complete Minibar web app. It is defined in
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<a href="minibar.js">minibar.js</a>. It also uses the <code>Input</code>
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and <code>Translations</code> objects, and some auxiliary functions defined
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in <a href="minibar_support.js">minibar_support.js</a>
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and <a href="support.js">support.js</a>, so to use it in an
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HTML file, you would normally include at least the following:
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<blockquote><pre>
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<script type="text/JavaScript" src="minibar.js"></script>
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<script type="text/JavaScript" src="minibar_input.js"></script>
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<script type="text/JavaScript" src="minibar_translations.js"></script>
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<script type="text/JavaScript" src="minibar_support.js"></script>
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<script type="text/JavaScript" src="support.js"></script>
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</pre></blockquote>
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<p>
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For an example, see <a href="minibar.html">minibar.html</a>.
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<h3>Constructor</h3>
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<code>var minibar=new Minibar(server,options,target)</code>
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<ul>
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<li><code>server</code> is the PGF service object.
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<li><code>options</code> is an object where the following properties
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can be set to override various default options:
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<table class=border>
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<tr><th>Option<th>Default<th>Description
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<tr><td>show_abstract<td>false<td rowspan=3>See Translations,
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not used directly by Minibar
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<tr><td>show_trees<td>false
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<tr><td>show_grouped_translations<td>true
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<tr><td>delete_button_text<td>"⌫"<td rowspan=3>See Input,
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not used directly by Minibar
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<tr><td>default_source_language<td>null
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<tr><td>random_button<td>true
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<tr><td>try_google<td>true<td>Include a button to try the current
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sentence in Google Translate
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<tr><td>feedback_url<td>null<td>Include a button to open a feedback
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form. The HTTP server must be configured to handle form submissions
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for this to work.
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<tr><td>help_url<td>null<td>Include a button to open a help text.
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</table>
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<li><code>target</code> is the <code>id</code> of the HTML element inside
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which the minibar user interface is created. It can be omitted if
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the <code>id</code> is <code>minibar</code>. The HTML document should
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contain something like this:
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<blockquote><code><div id="minibar"></div></code></blockquote>
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</ul>
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<h3>Methods</h3>
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There are several internal methods, but since this is a self-contained
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web app, there is usually no need to call any methods from outside.
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<h2 id=Input>The Input object</h2>
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This object handles user input. Text can be entered by typing or by clicking
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on the "refrigerator magnets".
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<p>
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It is defined in
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<a href="minibar_input.js">minibar_input.js</a>.
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It also uses some auxiliary functions defined
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in <a href="minibar_support.js">minibar_support.js</a>
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and <a href="support.js">support.js</a>, so to use it in an
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HTML file, you would normally include at least the following:
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<blockquote><pre>
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<script type="text/JavaScript" src="minibar_input.js"></script>
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<script type="text/JavaScript" src="minibar_support.js"></script>
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<script type="text/JavaScript" src="support.js"></script>
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</pre></blockquote>
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<h3>Constructor</h3>
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<code>var input=new Input(server,options,translations)</code>
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<ul>
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<li><code>server</code> is the PGF service object
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<li><code>options</code> is an object where the following properties
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can be set to override various default options:
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<table class=border>
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<tr><th>Option<th>Default<th>Description
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<tr><td>delete_button_text<td>"⌫"<td>the label for the button that deletes the last word
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<tr><td>default_source_language<td>null<td>the concrete language to
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use for input in case the user's browers doesn't supply a suitable
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default. If none is provided the first language in alphabetical
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order will be used.
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<tr><td>random_button<td>true<td>include a button to generate a
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random sentence
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</table>
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<li><code>translations</code> is the object that is notified when the input
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has changed. In the minibar, this is the object that display translations.
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The following methods will be called:
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<ul>
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<li><code>translations.clear()</code>
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<li><code>translations.translateFrom({from:<var>conc</var>,input:<var>string</code>})</code>
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</ul>
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</ul>
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<h3>Properties and user interface</h3>
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The <code>input</code> object created by the <code>Input</code>constructor
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contains two field that the caller should add to the user interface:
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<ul>
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<li><code>input.main</code> is the main user interface where the current
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input and the refrigerator magnets are displayed.
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<li><code>input.menus</code> contains the menu for selecting input language,
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and buttons for deleting the last word, clearing the input and generating
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a random sentence (if enabled in the options)
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</ul>
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<h3>Methods</h3>
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<ul>
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<li><code>input.change_grammar(grammar_info)</code> should be called
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after a different grammar is selected in the <code>server</code> object. It
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will clear away old input and magnets, and update the input language menu
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with the languages available in the new grammar.
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</ul>
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<h2 id=Translations>The Translations object</h2>
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This object display translations. It is defined in
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<a href="minibar_translations.js">minibar_translations.js</a>.
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It also uses some auxiliary functions defined
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in <a href="minibar_support.js">minibar_support.js</a>
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and <a href="support.js">support.js</a>, so to use it in an
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HTML file, you would normally include at least the following:
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<blockquote><pre>
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<script type="text/JavaScript" src="minibar_input.js"></script>
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<script type="text/JavaScript" src="minibar_support.js"></script>
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<script type="text/JavaScript" src="support.js"></script>
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</pre></blockquote>
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<h3>Constructor</h3>
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<code>var translations=new Translations(server,options)</code>
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<ul>
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<li><code>server</code> is the PGF service object.
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<li><p><code>options</code> is an object where the following properties
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can be set to override various default options:
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<table class=border>
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<tr><th>Option<th>Default<th>Description
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<tr><td>show_abstract<td>false<td>show the abstract syntax in addition
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to the concrete syntax for the translations
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<tr><td>show_trees<td>false<td>add buttons to display syntax trees
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next to translations.
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<tr><td>show_grouped_translations<td>true<td>in case there are
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multiple translations, group them by concrete language
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</table>
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</ul>
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<h3>Properties and user interface</h3>
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The <code>translations</code> object created by the
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<code>Translations</code> constructor contains two field that the caller
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should add to the user interface:
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<ul>
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<li><code>input.main</code> is the main user interface where the current
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translations are displayed.
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<li><code>input.menus</code> contains the menu for selecting target language.
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</ul>
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<h3>Methods</h3>
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<ul>
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<li><code>translations.change_grammar(grammar_info)</code> should be called
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after a different grammar is selected in the <code>server</code> object. It
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will clear away old translations and update the target language menu
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with the languages available in the new grammar.
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</ul>
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<hr>
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<div class=modtime>
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<small class=modtime>
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HTML <!-- hhmts start --> Last modified: Tue Aug 9 17:55:19 CEST 2011 <!-- hhmts end -->
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</small>
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</div>
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<address>
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<a href="Http://www.cse.chalmers.se/~hallgren/">TH</a>
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</address>
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