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iskeyword

Determine whether input is MATLAB keyword

Syntax

tf = iskeyword(txt)
iskeyword

Description

tf = iskeyword(txt) returns logical 1 (true) if the character vector or string scalar txt is a keyword in the MATLAB® language and logical 0 (false) otherwise. MATLAB keywords cannot be used as variable names.

iskeyword returns a list of all MATLAB keywords.

Examples

To test if the word while is a MATLAB keyword,

iskeyword('while')
ans =
    1

To obtain a list of all MATLAB keywords,

iskeyword
    'break'
    'case'
    'catch'
    'classdef'
    'continue'
    'else'
    'elseif'
    'end'
    'for'
    'function'
    'global'
    'if'
    'otherwise'
    'parfor'
    'persistent'
    'return'
    'spmd'
    'switch'
    'try'
    'while'

Extended Capabilities

Introduced before R2006a