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The second is a link to the article that details that symbol, using its Unicode standard name or common alias. (Holding the mouse pointer on the hyperlink will pop up a summary of the symbol's function.); The third gives symbols listed elsewhere in the table that are similar to it in meaning or appearance, or that may be confused with it;
The name period is first attested (as the Latin loanword peridos) in Ælfric of Eynsham's Old English treatment on grammar. There, it was distinguished from the full stop (the distinctio) and continued the Greek underdot's earlier function as a comma between phrases. [5]
The phrase grammar of most programming languages can be specified using a Type-2 grammar, i.e., they are context-free grammars, [8] though the overall syntax is context-sensitive (due to variable declarations and nested scopes), hence Type-1. However, there are exceptions, and for some languages the phrase grammar is Type-0 (Turing-complete).
Punctuation marks are marks indicating how a piece of written text should be read (silently or aloud) and, consequently, understood. [1] The oldest known examples of punctuation marks were found in the Mesha Stele from the 9th century BC, consisting of points between the words and horizontal strokes between sections.
In languages using the ISO basic Latin alphabet, terminal punctuation marks are defined as the period, the question mark, and the exclamation mark. [3] [4] These punctuation marks may bring sentences to a close. In their widest sense, terminal punctuation marks bring any element of written text to a close, including other conventions, such as ...
and ) are parentheses / p ə ˈ r ɛ n θ ɪ s iː z / (singular parenthesis / p ə ˈ r ɛ n θ ɪ s ɪ s /) in American English, and either round brackets or simply brackets in British English. [1] [4] They are also known as "parens" / p ə ˈ r ɛ n z /, "circle brackets", or "smooth brackets". In formal writing, "parentheses" is also used ...
Punctuation in the English language helps the reader to understand a sentence through visual means other than just the letters of the alphabet. [1] English punctuation has two complementary aspects: phonological punctuation, linked to how the sentence can be read aloud, particularly to pausing; [2] and grammatical punctuation, linked to the structure of the sentence. [3]
The last major use of the comma, semicolon, and period hierarchy is in Erlang (1986), where commas separate expressions; semicolons separate clauses, both for control flow and for function clauses; and periods terminate statements, such as function definitions or module attributes, not the entire program. Drawbacks of having multiple different ...