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Throughout your system also removes the need to track and convert between various character encodings.Ĭontent authors need to find out how to declare the characterĮncoding used for the document format they are working with.ĭeclaring a different encoding in your page won't change the bytes you need to save the text in that encoding too.Īs a content author, you need to check what encoding your editor or scripts are saving text in, and how to save text in UTF-8. This Unicode encoding is a good choice because you can use a single character encoding to handle any character you are likely to need. For example:Īs a content author or developer, you should nowadays always choose the UTF-8Ĭharacter encoding for your content or data. See a square box, a question mark or some other character instead.
TEXT ENCODING FORMATS SOFTWARE
If your font doesn't have a glyph for a particular character, some browsers or software applications will look for the missing glyphs in otherįonts on your system (which will mean that the glyph will look different from the surrounding text, like a ransom note). (Of course, if the encoding information was wrong, it will be looking up glyphs for the wrong characters.)Ī given font will usually cover a single character set, or in the case of a large character set like Unicode, just a subset of all theĬharacters in the set.
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Once your browser or app has worked out what characters it is dealing with, it will then look in the font for glyphs it can use to display definitions of the shapes used to display characters. How do fonts fit into this?Ī font is a collection of glyph definitions, ie. You will just need to be sure that you consider the advice in the Most of the time, however, you will not need to know the details. The section Additional information provides a little more detail for those who are interested. many different ways of mapping between bytes,Ĭode points and characters. Unfortunately, there are many different character sets and character encodings, ie. So, when you input text using a keyboard or in some other way, the character encoding maps characters you choose to specific bytes in computer memory, and then to display the text it reads the bytes back into characters. You shouldīe aware of this usage, but stick to using the term character encodings whenever you can. The misleading term charset is often used to refer to what are in reality character encodings. Without the key, the data looks like garbage. It is a set of mappings between the bytes in the computer and the characters in the character set. A character encoding provides a key to unlock (ie. Basically, you can visualise this by assuming that all characters are stored in computers using a special code, like the ciphers used in espionage.