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<link rel="alternate" lang="fr" xml:lang="fr" title="Des macros LaTeX pour markdown" type="text/html" hreflang="fr" href="/Scratch/fr/blog/2010-10-26-LaTeX-like-macro-and-markdown/" />
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<link rel="alternate" lang="en" xml:lang="en" title="LaTeX like macro for markdown" type="text/html" hreflang="en" href="/Scratch/en/blog/2010-10-26-LaTeX-like-macro-and-markdown/" />
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<title>Des macros LaTeX pour markdown</title>
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<a href="/Scratch/en/blog/2010-10-26-LaTeX-like-macro-and-markdown/" onclick="setLanguage('en')">in English</a>
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<h1>
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Des macros LaTeX pour markdown
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<p><span class="sc"><abbr title="Trop long à lire">tlàl</abbr> : </span> J’ai fait un système simple de macros pour mon blog. Par exemple, il me suffit d’écrire %<span></span>latex et ça affiche <span style="text-transform: uppercase">L<sup style="vertical-align: 0.15em; margin-left: -0.36em; margin-right: -0.15em; font-size: .85em">a</sup>T<sub style="vertical-align: -0.5ex; margin-left: -0.1667em; margin-right: -0.125em; font-size: 1em">e</sub>X</span>.</p>
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</div>
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<p>J’ai ajouter un système de macro pour mon système de blog.
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Lorsqu’on est habitué à <span style="text-transform: uppercase">L<sup style="vertical-align: 0.15em; margin-left: -0.36em; margin-right: -0.15em; font-size: .85em">a</sup>T<sub style="vertical-align: -0.5ex; margin-left: -0.1667em; margin-right: -0.125em; font-size: 1em">e</sub>X</span> et que l’on commence à écrire des articles
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un peu conséquent avec des notations mathématiques,
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les macros deviennent vite quelque chose d’indispensable.</p>
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<p>Dans l’entête de mes fichiers j’écris simplement:</p>
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<pre><code class="yaml">macros:
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test: "This is a macro test"
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latex: '<span style="text-transform: uppercase">L<sup style="vertical-align: 0.15em; margin-left: -0.36em; margin-right: -0.15em; font-size: .85em">a</sup>T<sub style="vertical-align: -0.5ex; margin-left: -0.1667em; margin-right: -0.125em; font-size: 1em">e</sub>X</span>'
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</code></pre>
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<p>Puis dans le corps ça va remplacer :</p>
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<ul>
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<li>%<span></span>test par <em>This is a macro test</em> ;</li>
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<li>et %<span></span>latex par <em><span style="text-transform: uppercase">L<sup style="vertical-align: 0.15em; margin-left: -0.36em; margin-right: -0.15em; font-size: .85em">a</sup>T<sub style="vertical-align: -0.5ex; margin-left: -0.1667em; margin-right: -0.125em; font-size: 1em">e</sub>X</span></em></li>
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</ul>
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<p>Le code est assez simple.
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Pour les utilisateurs de <code>nanoc</code> il suffit de copier le fichier suivant dans le répertoire <code>lib</code>. </p>
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<div class="codefile"><a href="/Scratch/fr/blog/2010-10-26-LaTeX-like-macro-and-markdown/code/macros.rb">➥ macros.rb</a></div>
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<pre><code class="ruby"># usage:
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# ---
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# ...
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# macros:
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# test: "passed test"
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# ---
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# ...
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# Here is a This is a macro test.
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#
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class Macros < Nanoc3::Filter
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identifier :falacy
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attr_accessor :macro
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def initialize(arg)
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super
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@macro={}
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@macro[:tlal] = %{<span class="sc"><abbr title="Trop long à lire">tlàl</abbr> : </span>}
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@macro[:tldr] = %{<span class="sc"><abbr title="Too long; didn't read">tl;dr</abbr>: </span>}
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if @item.nil?
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if not arg.nil?
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@macro.merge!( arg )
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end
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else
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if not @item[:macros].nil?
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@macro.merge!( @item[:macros] )
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end
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end
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end
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def macro_value_for(macro_name)
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if macro_name.nil? or macro_name=="" or @macro[macro_name.intern].nil?
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return %{%#{macro_name}}
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end
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return @macro[macro_name.intern]
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end
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def run(content, params={})
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content.gsub(/%(\w*)/) do |m|
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if m != '%'
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macro_value_for($1)
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else
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m
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end
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end
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end
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end
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</code></pre>
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<p>Les macros peuvent être vraiment utiles. Lisez <a href="http://adam.gomaa.us/blog/2007/oct/22/markdown-doesnt-scale/index.html">cet article</a> par exemple.</p>
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<a rel="license" href="http://creativecommons.org/licenses/by-sa/3.0/deed.fr">Droits de reproduction ©, Yann Esposito</a>
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<div id="lastmod">
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Écrit le : 26/10/2010
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modifié le : 26/10/2011
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Site entièrement réalisé avec
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<a href="http://www.vim.org">Vim</a>
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et
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<a href="http://nanoc.stoneship.org">nanoc</a>
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