grep(/[\(\d+\)]?\d+-\d+/) : Regexps « Development « Ruby
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Ruby
»
Development
»
Regexps
grep(/[\(\d+\)]?\d+-\d+/)
phone =
"(555)123-4567"
phone.grep
(
/
[
\
(
\d+\
)]
?\d+-\d+/
)
# =>
[
"(555)123-4567"
]
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Regexps use elements to instruct the regular expression engine on how to find a given string.
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An example of a regular expression used to match a string with the String method scan.
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Implementing Class and Singleton Methods
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Match a time
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19.
Match Perl, a space, and Python
20.
Match Perl, zero or more spaces, and Python
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Match Perl, one or more spaces, and Python
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Match Perl, whitespace characters, then Python
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sub and gsub replace with regular expressions
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The method Regexp#match matches a regular expression against a string.
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