(octave.info)Strings

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5 Strings
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A “string constant” consists of a sequence of characters enclosed in
either double-quote or single-quote marks.  For example, both of the
following expressions

     "parrot"
     'parrot'

represent the string whose contents are ‘parrot’.  Strings in Octave can
be of any length.

   Since the single-quote mark is also used for the transpose operator
(Note: Arithmetic Ops) but double-quote marks have no other purpose in
Octave, it is best to use double-quote marks to denote strings.

   Strings can be concatenated using the notation for defining matrices.
For example, the expression

     [ "foo" , "bar" , "baz" ]

produces the string whose contents are ‘foobarbaz’.  Note: Numeric Data
Types, for more information about creating matrices.

Escape Sequences in String Constants

Character Arrays

Creating Strings

Comparing Strings

Manipulating Strings

String Conversions

Character Class Functions