ASCII - Wikipedia ASCII ( ˈæski ⓘ ASS-kee), [3]: 6 an acronym for American Standard Code for Information Interchange, is a character encoding standard for representing a particular set of 95 (English language focused) printable and 33 control characters – a total of 128 code points The set of available punctuation had significant impact on the syntax of computer languages and text markup ASCII hugely
Binary-to-text encoding - Wikipedia Binary-to-text encoding A binary-to-text encoding is a data encoding scheme that represents binary data as plain text Generally, the binary data consists of a sequence of arbitrary 8-bit byte (a k a octet) values and the text is restricted to the printable character codes of commonly-used character encodings such as ASCII
Control character - Wikipedia The interpretation of the control key with non-ASCII ("foreign") keys also varies between systems Control characters are often rendered into a printable form known as caret notation by printing a caret (^) and then the ASCII character that has a value of the control character plus 64
Character literal - Wikipedia A character literal is a type of literal in programming for the representation of a single character 's value within the source code of a computer program Languages that have a dedicated character data type generally include character literals; these include C, C++, Java, [1] and Visual Basic [2] Languages without character data types (like Python [3] or PHP [4]) will typically use strings
Base36 - Wikipedia Base36 is a binary-to-text encoding that represents binary data in an ASCII string format by translating it into a radix -36 representation The choice of 36 is convenient in that the digits can be represented using the numerals 0–9 and the letters a-z [1] (the lowercase ISO basic Latin alphabet)
Newline - Wikipedia Java, PHP, [20] and Python [21] provide the \r\n sequence (for ASCII CR + LF) In contrast to C, these are guaranteed to represent the values U+000D and U+000A, respectively The Java Class Library input output (I O) methods do not transparently translate these into platform-dependent newline sequences on input or output
Wide character - Wikipedia A wide character refers to the size of the datatype in memory It does not state how each value in a character set is defined Those values are instead defined using character sets, with UCS and Unicode simply being two common character sets that encode more characters than an 8-bit wide numeric value (255 total) would allow
Extended ASCII - Wikipedia Extended ASCII Output of the program ascii in Cygwin Extended ASCII is a repertoire of character encodings that include (most of) the original 96 ASCII character set, plus up to 128 additional characters
Code 128 - Wikipedia To represent all 128 ASCII values, it shifts among three code sets (A, B, C) Together, code sets A and B cover all 128 ASCII characters Code set C is used to efficiently encode digit strings The initial subset is selected by using the appropriate start symbol
Escape sequence - Wikipedia Alternatively, the following uses "\x" to indicate the subsequent two characters are hexadecimal digits; "22" being the hexadecimal ASCII value for double-quote print "Nancy said \x22Hello World!\x22 to the crowd " C, C++, Java, and Ruby allow the same two backslash escape styles PostScript and rich text format (RTF) also use backslash escapes
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