MATLAB Programming

Regular Expressions
Operator
(??expr)
(?@cmd)
(??@cmd)
Usage
Parse expr as a separate regular expression, and include the
resulting string in the match expression. This gives you the
same results as if you called regexprep inside of a regexp
match expression.
Execute the MATLAB command cmd, discarding any output
that may be returned. This is often used for diagnosing a
regular expression.
Execute the MATLAB command cmd, and include the string
returned by cmd in the match expression. This is a combination
of the two dynamic syntaxes shown above: (??expr) and
(?@cmd).
MATLAB supports one type of dynamic expression for use in the replacement
expression of a regexprep command. See “Dynamic Operators for the
Replacement Expression” on page 3-65 for more information.
Operator
${cmd}
Usage
Execute the MATLAB command cmd, and include the string
returned by cmd in the replacement expression.
Example of a Dynamic Expression
As an example of a dynamic expression, the following regexprep command
correctly replaces the term internationalization with its abbreviated form,
i18n. However, to use it on a different term such as globalization, youhave
to use a different replacement expression:
match_expr = '(^\w)(\w*)(\w$)';
replace_expr1 = '$118$3';
regexprep('internationalization', match_expr, replace_expr1)
ans =
i18n
replace_expr2 = '$111$3';
regexprep('globalization', match_expr, replace_expr2)
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