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<td><h1>CodeIgniter User Guide Version 2.1.3</h1></td>
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<h1>Typography Class</h1>
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<p>The Typography Class provides functions that help you format text.</p>
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<h2>Initializing the Class</h2>
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<p>Like most other classes in CodeIgniter, the Typography class is initialized in your controller using the <dfn>$this->load->library</dfn> function:</p>
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<code>$this->load->library('typography');</code>
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<p>Once loaded, the Typography library object will be available using: <dfn>$this->typography</dfn></p>
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<h2>auto_typography()</h2>
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<p>Formats text so that it is semantically and typographically correct HTML. Takes a string as input and returns it with
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the following formatting:</p>
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<li>Surrounds paragraphs within <p></p> (looks for double line breaks to identify paragraphs).</li>
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<li>Single line breaks are converted to <br />, except those that appear within <pre> tags.</li>
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<li>Block level elements, like <div> tags, are not wrapped within paragraphs, but their contained text is if it contains paragraphs.</li>
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<li>Quotes are converted to correctly facing curly quote entities, except those that appear within tags.</li>
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<li>Apostrophes are converted to curly apostrophe entities.</li>
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<li>Double dashes (either like -- this or like--this) are converted to em—dashes.</li>
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<li>Three consecutive periods either preceding or following a word are converted to ellipsis…</li>
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<li>Double spaces following sentences are converted to non-breaking spaces to mimic double spacing.</li>
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<code>$string = $this->typography->auto_typography($string);</code>
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<p>There is one optional parameters that determines whether the parser should reduce more then two consecutive line breaks down to two. Use boolean <kbd>TRUE</kbd> or <kbd>FALSE</kbd>.</p>
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<p>By default the parser does not reduce line breaks. In other words, if no parameters are submitted, it is the same as doing this:</p>
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<code>$string = $this->typography->auto_typography($string, <kbd>FALSE</kbd>);</code>
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<p class="important"><strong>Note:</strong> Typographic formatting can be processor intensive, particularly if you have a lot of content being formatted.
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If you choose to use this function you may want to consider
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<a href="../general/caching.html">caching</a> your pages.</p>
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<h2>format_characters()</h2>
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<p>This function is similar to the <dfn>auto_typography</dfn> function above, except that it only does character conversion:</p>
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<li>Quotes are converted to correctly facing curly quote entities, except those that appear within tags.</li>
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<li>Apostrophes are converted to curly apostrophe entities.</li>
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<li>Double dashes (either like -- this or like--this) are converted to em—dashes.</li>
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<li>Three consecutive periods either preceding or following a word are converted to ellipsis…</li>
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<li>Double spaces following sentences are converted to non-breaking spaces to mimic double spacing.</li>
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<p>Usage example:</p>
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<code>$string = $this->typography->format_characters($string);</code>
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<h2>nl2br_except_pre()</h2>
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<p>Converts newlines to <br /> tags unless they appear within <pre> tags.
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This function is identical to the native PHP <dfn>nl2br()</dfn> function, except that it ignores <pre> tags.</p>
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<p>Usage example:</p>
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<code>$string = $this->typography->nl2br_except_pre($string);</code>
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<h2>protect_braced_quotes</h2>
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<p>When using the Typography library in conjunction with the Template Parser library it can often be desirable to protect single
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and double quotes within curly braces. To enable this, set the <kbd>protect_braced_quotes</kbd> class property to <samp>TRUE</samp>.</p>
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<p>Usage example:</p>
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<code>$this->load->library('typography');<br />
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$this->typography->protect_braced_quotes = TRUE;
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Previous Topic: <a href="parser.html">Template Parser</a>
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