MATLAB Programming

3 Basic Program Components
• “String Replacement” on page 3-67
• “Handling Multiple Strings” on page 3-69
• “Operator Summary” on page 3-72
MATLAB Regular Expression Functions
Several MATLAB functions support searching and replacing characters using
regular expressions:
Function
regexp
regexpi
regexprep
regexptranslate
Description
Match regular expression.
Match regular expression, ignoring case.
Replace string using regular expression.
Translate string into regular expression.
See the function reference pages to obtain more information on these
functions. For more information on how to use regular expressions in general,
consult a reference on that subject.
The regexp and regexpi functions return up to six outputs in the order shown
in the reference page for regexp. You can select specific outputs to be returned
by using one or more of the following qualifiers with these commands:
Qualifier
'start'
'end'
'tokenExtents'
'match'
'tokens'
'names'
Value Returned
Starting index of each substring matching the
expression
Ending index of each substring matching the expression
Starting and ending indices of each substring matching
a token in the expression
Text of each substring matching the expression
Text of each token captured
Name and text of each named token captured
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