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  2. Concatenation - Wikipedia

    en.wikipedia.org/wiki/Concatenation

    A spreadsheet's concatenate ("&") function is used to assemble a complex text string—in this example, XML code for an SVG "circle" element. In formal language theory and computer programming, string concatenation is the operation of joining character strings end-to-end. For example, the concatenation of "snow" and "ball" is "snowball".

  3. Vertical bar - Wikipedia

    en.wikipedia.org/wiki/Vertical_bar

    Similarly, the vertical bar may see use as a delimiter for regular expression operations (e.g. in sed). This is useful when the regular expression contains instances of the more common forward slash (/) delimiter; using a vertical bar eliminates the need to escape all instances of the forward slash. However, this makes the bar unusable as the ...

  4. Concatenation (disambiguation) - Wikipedia

    en.wikipedia.org/wiki/Concatenation_(disambiguation)

    Packet concatenation, a computer networking optimization that coalesces multiple packets under a single header; cat (Unix), a Unix command to write the contents of one or more files to the standard output "Concatenation", the opening track of Swedish extreme metal band Meshuggah's album Chaosphere

  5. Concatenative programming language - Wikipedia

    en.wikipedia.org/wiki/Concatenative_programming...

    A concatenative programming language is a point-free computer programming language in which all expressions denote functions, and the juxtaposition of expressions denotes function composition. [1] Concatenative programming replaces function application , which is common in other programming styles, with function composition as the default way ...

  6. cat (Unix) - Wikipedia

    en.wikipedia.org/wiki/Cat_(Unix)

    Useless use of cat (UUOC) is common Unix jargon for command line constructs that only provide a function of convenience to the user. [12] In computing, the word "abuse", [ 13 ] in the second sense of the definition, is used to disparage the excessive or unnecessary use of a language construct; thus, abuse of cat is sometimes called "cat abuse".

  7. Range concatenation grammar - Wikipedia

    en.wikipedia.org/wiki/Range_concatenation_grammar

    Range concatenation grammar (RCG) is a grammar formalism developed by Pierre Boullier [1] in 1998 as an attempt to characterize a number of phenomena of natural language, such as Chinese numbers and German word order scrambling, which are outside the bounds of the mildly context-sensitive languages.

  8. Tilde - Wikipedia

    en.wikipedia.org/wiki/Tilde

    A tilde is also used to indicate "approximately equal to" (e.g. 1.902 ~= 2). This usage probably developed as a typed alternative to the libra symbol used for the same purpose in written mathematics, which is an equal sign with the upper bar replaced by a bar with an upward hump, bump, or loop in the middle (︍︍♎︎) or, sometimes, a tilde ...

  9. Simplified Molecular Input Line Entry System - Wikipedia

    en.wikipedia.org/wiki/Simplified_Molecular_Input...

    SMILES generation algorithm for ciprofloxacin: break cycles, then write as branches off a main backbone. The Simplified Molecular Input Line Entry System (SMILES) is a specification in the form of a line notation for describing the structure of chemical species using short ASCII strings.