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Syntax highlighting
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<p>Syntax highlighting is a feature of <a href="/facts/Text_editor/jPCgtbvN">text editors</a> that is used for <a href="/facts/Programming_language/cWTYbgWa">programming</a>, <a href="/facts/Scripting_language/8pF4ajBL">scripting</a>, or <a href="/facts/Markup_language/WwhlNVIu">markup</a> languages, such as <a href="/facts/HTML/sSc3fT78">HTML</a>. The feature displays text, especially <a href="/facts/Source_code/o9J6Jv23">source code</a>, in different <a href="/facts/Text_color/RXGfXwcG">colours</a> and <a href="/facts/Font/04Q7sE8J">fonts</a> according to the category of terms. This feature facilitates writing in a structured language such as a programming language or a markup language as both structures and <a href="/facts/Syntax_error/DSHa31rg">syntax errors</a> are visually distinct. This feature is also employed in many programming related contexts (such as programming manuals), either in the form of colorful books or online websites to make understanding code snippets easier for readers. Highlighting does not affect the meaning of the text itself; it is intended only for human readers. </p><p>Syntax highlighting is a form of <a href="/facts/Secondary_notation/0zjpR3Le">secondary notation</a>, since the highlights are not part of the text meaning, but serve to reinforce it. Some editors also integrate syntax highlighting with other features, such as <a href="/facts/Spell_checking/Dg3GUjUd">spell checking</a> or <a href="/facts/Code_folding/vQ0vqmmE">code folding</a>, as aids to editing which are external to the language. </p>