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The Unicode character ’ (U+2019 RIGHT SINGLE QUOTATION MARK) is used for both a typographic apostrophe and a single right (closing) quotation mark. [1] This is due to the many fonts and character sets (such as CP1252) that unified the characters into a single code point, and the difficulty of software distinguishing which character is intended by a user's typing. [2]
For example, to represent the string eat 'hot' dogs in Pascal one uses 'eat ''hot'' dogs'. Other languages use an escape character, often the backslash, as in 'eat \'hot\' dogs'. In the TeX typesetting program, left double quotes are produced by typing two back-ticks (``) and right double quotes by typing two apostrophes ('').
Generally, an escape character is not a particular case of (device) control characters, nor vice versa.If we define control characters as non-graphic, or as having a special meaning for an output device (e.g. printer or text terminal) then any escape character for this device is a control one.
To make typographic apostrophes easier to enter, word processing and publishing software often convert typewriter apostrophes to typographic apostrophes during text entry (at the same time converting opening and closing single and double quotes to their standard left-handed or right-handed forms). A similar facility may be offered on web ...
String functions are used in computer programming languages to manipulate a string or query information about a string (some do both).. Most programming languages that have a string datatype will have some string functions although there may be other low-level ways within each language to handle strings directly.
The Deprecated letter subheading contains a single character, Latin Small Letter N Preceded by Apostrophe, which was included for compatibility with the ISO/IEC 6937 standard. [5] It was deprecated as of Unicode version 5.2.0, [ 7 ] with the comment that U+0149 ʼn LATIN SMALL LETTER N PRECEDED BY APOSTROPHE was encoded for use in Afrikaans.
The primary difference between the letter apostrophe and U+2019 is that the letter apostrophe U+02BC has the Unicode General Category "Letter, modifier" (Lm), while U+2019 has the category "Punctuation, Final quote" (Pf). In early Unicode (versions 1.0 [2] –2.1.9 [3]) U+02BC was preferred
A string literal or anonymous string is a literal for a string value in the source code of a computer program. Modern programming languages commonly use a quoted sequence of characters, formally "bracketed delimiters", as in x = "foo", where , "foo" is a string literal with value foo. Methods such as escape sequences can be used to avoid the ...