imported>Covert23: basic grammar clarification

2024-07-07T22:03:45Z

basic grammar clarification

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{{Short description|Syntactically valid part of a program formed from lexical tokens}}
{{More sources|date=January 2021}}

In [[computer programming]], a '''language construct''' is "a [[Syntax (programming languages)|syntactically]] allowable part of a [[Computer program|program]] that may be formed from one or more [[lexical token]]s in accordance with the rules of the [[programming language]]", as defined by in the [[ISO/IEC 2382]] standard ([[ISO/IEC JTC 1]]).<ref name="ISO/IEC 2382">{{cite web |title=ISO/IEC 2382, Information technology — Vocabulary |url=https://www.iso.org/obp/ui/#iso:std:iso-iec:2382:ed-1:v1:en}}</ref>
A '''term''' is defined as a "linguistic construct in a [[conceptual schema]] language that refers to an entity".<ref name="ISO/IEC 2382"/>

While the terms "language construct" and "control structure" are often used synonymously, there are additional types of logical constructs within a computer program, including [[variable (computer science)|variables]], [[expression (computer science)|expressions]], [[function (computer science)|functions]], or [[modular programming|modules]].

[[Control flow]] statements (such as [[Conditional (computer programming)|conditionals]], [[foreach loop]]s, [[while loop]]s, etc) are language constructs, not [[Subroutine|function]]s. So <code>while (true)</code> is a language construct, while <code>add(10)</code> is a function call.

==Examples of language constructs==
In [[PHP]] <code>print</code> is a language construct.<ref>{{Cite web |title=PHP: print - Manual |url=https://www.php.net/manual/en/function.print.php |access-date=2022-11-18 |website=www.php.net}}</ref>
<syntaxhighlight lang="php">
<?php
print 'Hello world';
?>
</syntaxhighlight>

is the same as:

<syntaxhighlight lang="php">
<?php
print('Hello world');
?>
</syntaxhighlight>

{{DEFAULTSORT:Language Construct}}
[[Category:Programming constructs]]

In Java a [[class (computer programming)|class]] is written in this format:<syntaxhighlight lang="java">
public class MyClass {
//Code . . . . . .
}
</syntaxhighlight>

In C++ a class is written in this format:<syntaxhighlight lang="c++">
class MyCPlusPlusClass {
//Code . . . .
};
</syntaxhighlight>
==References==
{{reflist}}{{Compu-lang-stub}}

Language construct - Revision history

imported>Covert23: basic grammar clarification