contents/glyph/book/text_editing/inclusions.html
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 |
----- title: "Glyph - Content Reuse" content-type: page ----- <nav class="navigation"><a href="/glyph/book/text_editing/stylesheets.html">← Adding Stylesheets</a> | <a href="/glyph/book/index.html">Contents</a> | <a href="/glyph/book/text_editing/conditionals.html">Conditional Macros →</a></nav> <section class="section"> <header> <h3 id="file-inclusions" class="toc">File inclusions</h1> </header> <p>If you’re authoring a user manual, a long article, or a book, writing everything inside a single <code>document.glyph</code> file may not be optimal. For this reason, Glyph provides an <a href="/glyph/book/macros/macros_core.html#m_include"><code>include</code></a> macro that can be used to include the contents of any file within the <code>text/</code> directory:</p> <p><code>include[general/introduction.textile]</code></p> <p>The macro call above loads the contents of the <code>introduction.textile</code> file, within the <code>text/general</code> directory.</p> <p>When including a text file, an input filter macro is applied to its contents by default, based on the file extension used:</p> <ul> <li><code>.textile</code> or <code>.txt</code> → <a href="/glyph/book/macros/macros_filters.html#m_textile"><code>textile</code></a> macro</li> <li><code>.markdown</code> or <code>.md</code> → <a href="/glyph/book/macros/macros_filters.html#m_markdown"><code>markdown</code></a> macro</li> </ul> <p>You can override this behavior by setting the <code>filters.by_file_extensions</code> configuration setting to <code>false</code>. If no extension is specified, <code>.glyph</code> is assumed.</p> <section class="section"> <header> <h3 id="h_39" class="toc">Remarks</h1> </header> <ul> <li>The <a href="/glyph/book/macros/macros_core.html#m_include"><code>include</code></a> macro can also be used to include (and evaluate) ruby files (with a <code>.rb</code> extension). In this case, the ruby file must be placed within the <code>lib/</code> directory of the current project.</li> <li>The <a href="/glyph/book/macros/macros_core.html#m_load"><code>load</code></a> macro macro can be used to include the content of any file <em>without</em> performing any evaluation.</li> </ul> </section> </section> <section class="section"> <header> <h3 id="snippets" class="toc">Snippets</h1> </header> <p>While including the context of an entire file is definitely a useful feature for content reuse, sometimes it can be an overkill. What if, for example, you just want to reuse a short procedure or even a sentence or a single word? In this case, you may want to consider using a <em>snippet</em> instead.</p> <p>Snippets can be defined using the <a href="/glyph/book/macros/macros_core.html#m_snippet_"><code>snippet:</code></a> macro (aliased by <code>&:</code>) and called by using the <a href="/glyph/book/macros/macros_core.html#m_snippet"><code>snippet</code></a> macro (aliased by <code>&</code>). Consider the following simple example:</p> <div class="CodeRay"> <div class="code"> <pre><span class="line-numbers"><a href="#n1" name="n1">1</a></span>&:[markups|Textile or Markdown] <span class="line-numbers"><a href="#n2" name="n2">2</a></span> <span class="line-numbers"><a href="#n3" name="n3">3</a></span>Glyph supports &[markups].</pre> </div> </div> <p>You can use <code>&[markups]</code> anywhere in your document instead of having to type "Textile or Markdown" every time. Additionally, later on you can change the value of the <code>markups</code> to change it everywhere else in the document.</p> </section> <aside class="tip"> <span class="note-title">Tip</span>Snippets (or any other macro) can be nested within other snippets. Glyph takes care of checking if you nested snippets or macros mutually and warns you as necessary. </aside> <nav class="navigation"><a href="/glyph/book/text_editing/stylesheets.html">← Adding Stylesheets</a> | <a href="/glyph/book/index.html">Contents</a> | <a href="/glyph/book/text_editing/conditionals.html">Conditional Macros →</a></nav> |