Widthless space

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ISO symbol for the blank space

The wide-free space " ," even zero wide spaces ( English space zero-width , abbreviated ZWSP ) is a control character in the digital set for marking a word boundary by a distance that is generally not visible. Although it is not a space , the term “space” - or its equivalent - is used in German and in other languages ​​for the name of this control character.

description

In electronic word processing , the blank space allows a line break in suitable places that are not marked by a space. In contrast to the conditional hyphen , no hyphen is inserted. It is regularly used in writing systems that do not always separate words with spaces, such as Thai . But URLs , email addresses , kompress set slashes and other text parts, which are not automatically separated properly from the word processor can thus be fitted with invisible parting ways.

The blank space is also useful in a microblogging service like Twitter to append a genitive -s to a user name or hashtag without a space being visible or an apostrophe being required. The basic form of the user name or the hashtag can be obtained with this character. ( Example: If a tweet is about “@Peters Fahrrad”, a space with no width is inserted after the basic form of the username “@Peter”. Then the name is kept in front of the genitive-s as it is correct here. Without the blank space in front of the s, “@Peters” would refer to a different username, namely “@Peters”. Then the user “Peter” would most likely not hear about the tweet and would not find out what someone else wanted to tell him about his bike .) The same applies to the use in compound words .

Coding

The non-width space (logically invisible in the display, e.g. here between the quotation marks: "") in Unicode : U + 200B zero width space and as HTML / XML entities : ​ (hex.) And ​ (dec.)

In LaTeX with a TeX distro following commands work: TeX : \hskip0pt; LaTeX : \hspace{0pt}; groff :\:

symbol

A symbol for use on keyboards and in descriptions is standardized in Amendment 1 (2012) to ISO / IEC 9995 -7: 2009 "Information technology - Keyboard layouts for text and office systems - Symbols used to represent functions" as symbol 87, as well as in IEC 60417 "Graphical Symbols for use on Equipment" as symbol IEC 60417-6177-10.

See also

Web links

Wiktionary: spaces  - explanations of meanings, word origins, synonyms, translations

Individual evidence

  1. a b The Unicode Consortium: Unicode Character Code Charts - General Punctuation (PDF, 304 kB) Accessed January 28, 2014.
  2. Unicode Technical Note # 27 . Retrieved January 28, 2014.
  3. Rainer Seitel: Unicode TM 6.2 characters and symbols in German . Retrieved January 28, 2014.
  4. The Unicode Consortium: The Unicode Standard 6.2 - Core Specification (PDF, 11.5 MB) p. 366. Retrieved January 29, 2014.
  5. ^ The LaTeX Companion. Chapter 3: Basic Formatting Tools . Archived from the original on May 12, 2013. Retrieved February 8, 2014.
  6. groff (7) - Linux manual page . Retrieved February 8, 2014.