MATLAB Programming

3 Basic Program Components
Operator
Usage
. Any single character, including white space
[c 1
c 2
c 3
] Any character contained within the brackets: c 1
or c 2
or c 3
[^c 1
c 2
c 3
]
Any character not contained within the brackets:
anything but c 1
or c 2
or c 3
[c 1
-c 2
] Any character in the range of c 1
through c 2
\s Any white-space character; equivalent to [
\f\n\r\t\v]
\S Any non-whitespace character; equivalent to [^
\f\n\r\t\v]
\w Any alphabetic, numeric, or underscore character;
equivalent to [a-zA-Z_0-9]. (This does not apply to
non-English character sets).
\W Any character that is not alphabetic, numeric, or
underscore; equivalent to [^a-zA-Z_0-9]. (Trueonly
for English character sets).
\d Any numeric digit; equivalent to [0-9]
\D Any nondigit character; equivalent to [^0-9]
The following examples demonstrate how to use the character classes listed
above. See the regexp reference page for help with syntax. Most of these
examples use the following string:
str = 'The rain in Spain falls mainly on the plain.';
Any Character — .
Use '..ain' in an expression to match a sequence of five characters ending
in 'ain'. Notethat. matches white-space characters as well:
regexp(str, '..ain')
ans =
4 13 24 39
3-34