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Typography and the Web
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<p><img alt="Screenshot of first in small caps with and without ligatures." src="/Scratch/img/blog/Typography-and-the-Web/first_sc_screenshot.png" /></p>
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<div class="intro">
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<p><span class="sc"><abbr title="Too long; didn't read">tl;dr</abbr>: </span> Web typography sucks and we’ll have to wait forever before it will be fixed.</p>
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</div>
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<p>I stumbled upon <a href="http://opentypography.org/">open typography</a>. Their main message is:</p>
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<blockquote>
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<p>«There is no reason to wait for browser development to catch up.
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We can all create better web typography ourselves, today.»</p>
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</blockquote>
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<p>As somebody who tried to make my website using some nice typography features and in particular <em>ligatures</em>, I believe this is wrong.</p>
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<p>I already made an automatic system which will detect and replace text by their ligatures in my blog. But this I never published this on the web and this is why.</p>
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<p>First, what is a ligatures?</p>
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<p><img alt="A ligature example" src="/Scratch/img/blog/Typography-and-the-Web/ligatures.png" /></p>
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<p>What is the problem between the Web and ligatures?
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The first one is: you cannot search them. For example, try to search the word “first”:</p>
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<ul>
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<li>first ← No ligature, no problem</li>
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<li><span style="color: #800">fi</span>r<span style="color: #800">st </span> ← ligature nice but unsearchable</li>
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</ul>
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<p>The second one is the rendering, for example, try to use a ligature character with small caps:</p>
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<ul>
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<li>
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<span class="sc">first</span>
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</li>
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<li>
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<span class="sc"><span style="color:#800">fi</span>r<span style="color:#800">st</span></span>
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</li>
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</ul>
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<p>Here is a screenshot of what I see:</p>
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<p><img alt="Screenshot of first in small caps with and without ligatures." src="/Scratch/img/blog/Typography-and-the-Web/first_sc_screenshot.png" /></p>
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<p>The browser isn’t able to understand that the ligature character “<span style="color:#800">fi</span>” should render as <span class="sc">fi</span> when rendered in small caps. And one part of the problem is you should choose to display a character in small caps using <span class="sc">css</span>.</p>
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<p>This way, how could you use a ligature Unicode character on a site on which you could change the <span class="sc">css</span>?</p>
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<p>Let’s compare to <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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<p><img alt="LaTeX screenshot" src="/Scratch/img/blog/Typography-and-the-Web/first_latex_screenshot.png" /></p>
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<p>If you take attention to detail, you’ll see the first “first” contains a ligature. Of course the second render nicely. The code I used were:</p>
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<pre class="twilight">
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<span class="Keyword"><span class="Keyword">\</span>item</span> first
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<span class="Keyword"><span class="Keyword">\</span>item</span> {\sc first}
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</pre>
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<p><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> was intelligent enough to create himself the ligatures when needed.</p>
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<p>The “<span style="color:#800">st</span>” ligature is rare and not rendered in <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> by default. But if you want you could also render rare ligature using <span style="text-transform: uppercase">X<sub style="vertical-align: -0.5ex; margin-left: -0.1667em; margin-right: -0.125em; font-size: 1em">Ǝ</sub>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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<p><img alt="XeLaTeX ligatures" src="/Scratch/img/blog/Typography-and-the-Web/xelatex_ligatures.jpg" /></p>
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<p>I took this image from the excellent article of <a href="http://nitens.org/taraborelli/latex#rare">Dario Taraborelli</a>.</p>
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<p>Clearly fix the rendering of ligature in a browser is a difficult task.
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Simply imagine the number of strange little exceptions:</p>
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<ul>
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<li>The text is rendered in small caps, I cannot use ligature.</li>
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<li>The current word contains a ligature unicode character, I should search for ligature in this one.</li>
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<li>The current font does not defined the ligature unicode character, we shouldn’t use it, etc</li>
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<li>A javascript command changed the CSS, I should verify if I had to revert the insertion of ligatures characters</li>
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<li>etc…</li>
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</ul>
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<p>Nonetheless if someone has a solution, I would be happy to hear about it.</p>
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<a href="/Scratch/en/blog/Yesod-tutorial-for-newbies/"><span class="nicer">«</span> Haskell web programming</a>
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<a rel="license" href="http://creativecommons.org/licenses/by-sa/3.0/">Copyright ©, Yann Esposito</a>
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Created: 02/02/2012
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Modified: 02/02/2012
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Entirely done with
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and
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<a href="http://nanoc.stoneship.org">nanoc</a>
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