| Regular Expression |
Meaning |
| |
|
| /a.c/ |
the letter a followed by any character then c
|
| /a+c/ |
one or more a's followed by c
|
| /a*c/ |
zero or more a's followed by c, so even "c" matches.
|
| /a?c/ |
zero or one a followed by c: "ac" or "c"
|
| /a.+c/ |
a followed by one or more characters, then c
|
| /a.*c/ |
a followed by zero or more characters, then c, so even "ac" matches.
|
| /a|bc/ |
"a" or "bc"
|
| /(a|b)c/ |
"ac" or "bc"
|
| /(a|b)+c/ |
one or more a's or b's, followed by c:
ac, bc, aac, abc, aaac, abbabababbac.
|
| /(a|A)\ssample\smatch/ |
"A" or "a" followed by one whitespace character, then "sample", then one whitespace character, then "match".
|
| /\d\d\d-\d\d\d-\d\d\d\d/ |
Any phone number like this: 250-123-1234
|
| /\(\d\d\d\)\s\d\d\d\-\d\d\d\d/ |
Any North American phone number like this: (250) 123-1234
|
| /\(\d{3}\)\s\d{3}-\d{4}/ |
As above, but using the count specifier
|
| /<title.*title>/ |
An html title tag, with any title. The .* match would include the > and <\ characters
|
| /<title>.*<\/title>/ |
An html title tag, with any title. The </title> tag needs a backslash quote in front of the slash, \/, to prevent the slash from being taken as the end of the pattern The .* match would include only the title text, not the > and </ as above
|
| /first.*second.*third/ |
Any sequence of text with the word first before the word second before the word third. Any or no characters can lie in between the words
|
| /^\t+\S+\s*/ |
Any line of text starting with one or more tabs, containing at least one nonwhitespace characer, followed by no or some whitespace
|
| /^b[aeiouy]+t/ |
Any line of text starting with b followed by any combination of 1 or more vowels and then the letter t/
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