Regular Expressions 101

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An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression
No Match

/
/
gm

Test String

Substitution

Processing...

Code Generator

Language

Generated Code

import Foundation let pattern = #".*((?<=:\s)[\w\s]+(?=\s\(\d{5}\))).*((?<=\s)[\w._-]+@[\w._-]+).*"# let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines) let testString = ##"Residential Status: Active LP: $3,495,000 Sales MLS #: 000000 Orig.Price: $3,695,000 Price: MT: 273 APN: 000-00 List Date: 02/11/2009 AMT: 269 Listing Type: Exclusive Agency (A) Court/Lndr Apprvl Needed: N Address: 16595 La Gracia Unit#/Space#: City: Rancho Santa Fe, CA Zip: 92067 MapCode: 1164D4 Bedrooms: 5 Year Built: 1990 Zoning: RR1 Units In Complex: Media: 12 - VT: http://www.previewfirst.com/ REMARKS AND SHOWING INFO Confidential Remarks: Showing Instructions: CLOFATS LISTING AGENT AND OFFICE INFORMATION Listing Agent: This Person (00000) Agent Phone: (000) 000-4024 Add'l Phone: (000) 000-4024 2nd Agent: Jason A. (000) 2nd Agt Phone: (000) 000-4024 2nd Add'l Phone: (000) 000-4024 Listing Office: Estates, Inc. Office Phone: (000) 000-4024 Broker Office ID: 000 Email: thisemail@aol.com Fax: (000) 000-9553 Pager: SOLD INFORMATION Off Market Date: Close of Escrow: Expiration Date: Sale Price: Selling Agent"## let stringRange = NSRange(location: 0, length: testString.utf16.count) let substitutionString = #"Name: $1, Email: $2"# let result = regex.stringByReplacingMatches(in: testString, range: stringRange, withTemplate: substitutionString) print(result)

Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Swift 5.2, please visit: https://developer.apple.com/documentation/foundation/nsregularexpression