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Browse Expressions by Category

91 regular expressions found in this category!

Expressions in category: Strings

Change page:   |    Displaying page 2 of 5 pages; Items 21 to 40
Title Test Details Pattern Title
Expression
<[^>]+>
Description
This expression finds all opening and closing tags. Good for stripping out tags in an XML or HTML document. I used it to clean-up HTML documents that had XML mixed in. It found all the tags, then I just deleted the ones that weren't standard. I used it in HOMESITES extended find.
Matches
<html> | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> | <
Non-Matches
Any plain old text | http://www.regexlib.com/Add.aspx | xml>
Author Rating: The rating for this expression. X Man
Title Test Details Pattern Title
Expression
"((\\")|[^"(\\")])+"
Description
Matches quoted string, using \" as an escape to place quotes in the string
Matches
"test" | "escape\"quote" | "\""
Non-Matches
test | "test | "test\"
Author Rating: The rating for this expression. Alessandro Vergani
Title Test Details Pattern Title
Expression
^([51|52|53|54|55]{2})([0-9]{14})$
Description
Validate against any mastercard number. All MC's start with a number between 51 and 55 and are followed by 14 other numbers.
Matches
5125632154125412 | 5225632154125412 | 5525632154125412
Non-Matches
5625632154125412 | 4825632154125412 | 6011632154125412
Author Rating: The rating for this expression. Jeff Johns
Title Test Details Pattern Title
Expression
^(?n:(?<lastname>(St\.\ )?(?-i:[A-Z]\'?\w+?\-?)+)(?<suffix>\ (?i:([JS]R)|((X(X{1,2})?)?((I((I{1,2})|V|X)?)|(V(I{0,3})))?)))?,((?<prefix>Dr|Prof|M(r?|(is)?)s)\ )?(?<firstname>(?-i:[A-Z]\'?(\w+?|\.)\ ??){1,2})?(\ (?<mname>(?-i:[A-Z])(\'?\w+?|\.))){0,2})$
Description
This pattern captures &lt;lastname&gt;&lt;suffix&gt;,&lt;prefix&gt;&lt;firstname&gt;&lt;mname&gt; Names must start with a capital letter. Last names may be hyphenated. First names can have two parts ie &quot;Mary Anne&quot; if there are more than two names after the comma. Suffixes can number up to XXX (30th). Standard prefixes are optional (Mr Miss)
Matches
O'Brien, Miles | McDonald,Mary Ann Alison | Windsor-Smith,Barry
Non-Matches
jones, john
Author Rating: The rating for this expression. Michael Ash
Title Test Details Pattern Title
Expression
^((?:4\d{3})|(?:5[1-5]\d{2})|(?:6011)|(?:3[68]\d{2})|(?:30[012345]\d))[ -]?(\d{4})[ -]?(\d{4})[ -]?(\d{4}|3[4,7]\d{13})$
Description
This just a minor mod to Steven Smith's credit card re to accept spaces as separators, as well as return the four parts of the card. [Updated Oct-18-2002 to work with Diners Club/Carte Blanche (prefix must be 36, 38, or 300-305)]
Matches
6011567812345678 | 6011 5678 1234 5678 | 6011-5678-1234-5678
Non-Matches
1234567890123456
Author Rating: Not yet rated. Glenn Carr
Title Test Details Pattern Title
Expression
^\s*[a-zA-Z,\s]+\s*$
Description
Any Expression Upper/Lower Case, with commas and space between the text, with any amount of space before or after
Matches
Smith, Ed | Ed Smith | aBcDeFgH
Non-Matches
a123 | AB5 | Mr. Ed
Author Rating: Not yet rated. Mart Maasikas
Title Test Details Pattern Title
Expression
^([1-zA-Z0-1@.\s]{1,255})$
Description
A general string validation to insure no malicious code is being passed through user input. General enough too allow email address, names, address, passwords, so on. Disallows ‘,\*&amp;$&lt;&gt; or other characters that could cause issues.
Matches
email@email.com | My Name | asdf12df
Non-Matches
‘,\*&amp;$&lt;&gt; | 1001' string
Author Rating: Not yet rated. Paul Miller
Title Test Details Pattern Title
Expression
^([A-Z]{1}[a-z]{1,})$|^([A-Z]{1}[a-z]{1,}\040[A-Z]{1}[a-z]{1,})$|^([A-Z]{1}[a-z]{1,}\040[A-Z]{1}[a-z]{1,}\040[A-Z]{1}[a-z]{1,})$|^$
Description
Matches up to three alphabet words separated by spaces with first alphabet character of each word uppercase. Also matches empty strings.
Matches
Sacramento | San Francisco | San Luis Obispo
Non-Matches
SanFrancisco | SanLuisObispo | San francisco
Author Rating: Not yet rated. Don Batchelor
Title Test Details Pattern Title
Expression
.*[Pp]re[Ss\$]cr[iI1]pt.*
Description
Spam Stopper
Matches
Pre$criptions
Non-Matches
na
Author Rating: Not yet rated. Alanski Perryman
Title Test Details Pattern Title
Expression
.*[Oo0][Ee][Mm].*
Description
Spam Stopper
Matches
OEM | 0em
Non-Matches
na
Author Rating: Not yet rated. Alanski Perryman
Title Test Details Pattern Title
Expression
^\d{9}[\d|X]$
Description
A very simple ISBN validation expression - it just checks for a 10 digit number where the last digit could also be a capital 'X'. Complete specs for ISBN available here: http://www.isbn.org/standards/home/isbn/international/html/usm4.htm. An enhancement would be to allow exactly 3 or 0 hyphens or 3 or 0 spaces, since these are also valid formats.
Matches
1234123412 | 123412341X
Non-Matches
not an isbn
Author Rating: Not yet rated. Steven Smith
Title Test Details Pattern Title
Expression
.*\$AVE|\$ave.*
Description
Spam Stopper
Matches
$ave
Non-Matches
save
Author Rating: Not yet rated. Alanski Perryman
Title Test Details Pattern Title
Expression
(\b\w+\b) # Match a word and capture it \s+ \1 # Use backreference \1 to match double-ups
Description
Matches
This is is a match
Non-Matches
This isn't!
Author Rating: Not yet rated. Darren Neimke
Title Test Details Pattern Title
Expression
(\w+)\s+\1
Description
This expression uses a BackReference to find occurrences of the same word twice in a row (separated by a space). Matches things like 'mandate dated', which may not be desirable. See Sean Carley's update for a better expression for true repeated word matching.
Matches
hubba hubba | mandate dated | an annual
Non-Matches
may day | gogo | 1212
Author Rating: Not yet rated. Steven Smith
Title Test Details Pattern Title
Expression
[\\s+,]
Description
Simple expression for matching all commas and all whitespace characters: ASCII (13,10,44)
Matches
, | whitespace | carrage returns
Non-Matches
cat
Author Rating: Not yet rated. andrew stone
Title Test Details Pattern Title
Expression
(?s)(?:\e\[(?:(\d+);?)*([A-Za-z])(.*?))(?=\e\[|\z)
Description
This expression will match all of the commands(escape codes) used in ANSI files. These are what were used to create the colors/blocks on BBS's for those of us that once dialed into them. http://www.wikipedia.org/wiki/ANSI_escape_code has a reference for ANSI escape codes. http://idledreams.net/lordscarlet/posts/153.aspx shows an example of the engine I have created surrounding the expression
Matches
Hello | Test | 
Non-Matches
abc
Author Rating: Not yet rated. Doug Moore
Title Test Details Pattern Title
Expression
^\d{3}-\d{2}-\d{4}$
Description
This regular expression will match a hyphen-separated Social Security Number (SSN) in the format NNN-NN-NNNN.
Matches
333-22-4444 | 123-45-6789
Non-Matches
123456789 | SSN
Author Rating: Not yet rated. Steven Smith
Title Test Details Any One US ASCII Letter
Expression
^[a-zA-Z]$
Description
Matches any single upper- or lower-case letter.
Matches
a | B | c
Non-Matches
0 | &amp; | AbC
Author Rating: Not yet rated. Steven Smith
Title Test Details Pattern Title
Expression
^(\d{4}[- ]){3}\d{4}|\d{16}$
Description
Credit card validator. Just checks that the format is either 16 numbers in groups of four separated by a &quot;-&quot; or a &quot; &quot; or nothing at all.
Matches
1234-1234-1234-1234 | 1234 1234 1234 1234 | 1234123412341234
Non-Matches
Visa | 1234 | 123-1234-12345
Author Rating: Not yet rated. Steven Smith
Title Test Details Pattern Title
Expression
foo
Description
The &quot;hello world&quot; of regular expressions, this will match any string with an instance of 'foo' in it.
Matches
foo
Non-Matches
bar
Author Rating: Not yet rated. Steven Smith
Change page:   |    Displaying page 2 of 5 pages; Items 21 to 40

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