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A numeric character reference refers to a character by its Universal Character Set/Unicode code point, and a character entity reference refers to a character by a predefined name. A numeric character reference uses the format &#nnnn; or &#xhhhh; where nnnn is the code point in decimal form, and hhhh is the code point in hexadecimal form.
Copy the list of results and put it into a separate one-column table as described in the previous section. Then copy that column and use it to replace the code column as described here: §§ Help:Tables and Copy column from one table to another. The table will need to be alphabetized again since the codes alphabetize differently versus the full ...
The effect of left-padding with non-breaking space codes which render as blank spaces, depends on the browser: in IE they are (unlike actual blank spaces) counted for sorting as leading blank spaces, so in a list of numbers with text (for which the alphabetic sorting mode applies) they could be used to equalize the number of characters ...
For more on special characters: Unicode character name index can be used to find the Unicode number of a character. W3C list of MathML characters indexed by code or name; List of XML and HTML character entity references – includes all named entities; Glossary of mathematical symbols
The Cangjie code of a character is a string of English letters each representing a selected Cangjie component in the character. For example, the Cangjie codes of the characters in 漢字排檢法 (Methods for Chinese character sorting and retrieving) are 漢(ETLO)字(JND)排(QLMY)檢(DOMO)法(EGI), and can be sorted into a Cangjie-code order of ...
The "escape" character (ESC, code 27), for example, was intended originally to allow sending of other control characters as literals instead of invoking their meaning, an "escape sequence". This is the same meaning of "escape" encountered in URL encodings, C language strings, and other systems where certain characters have a reserved meaning.
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Like old typewriters, plain base characters (white spaces, punctuation characters, symbols, digits, or letters) can be followed by one or more non-spacing symbols (usually diacritics, like accent marks modifying letters) to form a single printable character; but Unicode also provides a limited set of precomposed characters, i.e. characters that ...