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

Code Generator

Language

Generated Code

import Foundation let pattern = #"(?<=\'\),')(.*)(?=\',)"# let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines) let testString = #""" DECODE(TRUE, IN(LTRIM(RTRIM(deposit_account_type__)),'410'),'Brokered', IN(LTRIM(RTRIM(deposit_account_type__)),'411'),'CDS Listing Service', IN(LTRIM(RTRIM(deposit_account_type__)),'408'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'412'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'418'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'424'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'436'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'448'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'460'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'472'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'484'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'496'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'497'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'708'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'712'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'718'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'724'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'736'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'748'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'760'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'772'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'784'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'796'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'797'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'400'),'Public Funds CD', IN(LTRIM(RTRIM(deposit_account_type__)),'700'),'Public Funds CD', IN(LTRIM(RTRIM(deposit_account_type__)),'407'),'Short Term - Less than 1 Year', IN(LTRIM(RTRIM(deposit_account_type__)),'432'),'Short Term - Less than 1 Year', IN(LTRIM(RTRIM(deposit_account_type__)),'482'),'Short Term - Less than 1 Year', IN(LTRIM(RTRIM(deposit_account_type__)),'491'),'Short Term - Less than 1 Year', IN(LTRIM(RTRIM(deposit_account_type__)),'707'),'Short Term - Less than 1 Year', IN(LTRIM(RTRIM(deposit_account_type__)),'732'),'Short Term - Less than 1 Year', IN(LTRIM(RTRIM(deposit_account_type__)),'782'),'Short Term - Less than 1 Year', IN(LTRIM(RTRIM(deposit_account_type__)),'791'),'Short Term - Less than 1 Year', IN(LTRIM(RTRIM(deposit_account_type__)),'100'),'Checking', IN(LTRIM(RTRIM(deposit_account_type__)),'101'),'Checking', IN(LTRIM(RTRIM(deposit_account_type__)),'102'),'Checking', IN(LTRIM(RTRIM(deposit_account_type__)),'110'),'Checking', IN(LTRIM(RTRIM(deposit_account_type__)),'111'),'Checking', IN(LTRIM(RTRIM(deposit_account_type__)),'115'),'Checking', IN(LTRIM(RTRIM(deposit_account_type__)),'125'),'Checking', IN(LTRIM(RTRIM(deposit_account_type__)),'127'),'Checking', IN(LTRIM(RTRIM(deposit_account_type__)),'130'),'Checking', IN(LTRIM(RTRIM(deposit_account_type__)),'149'),'Checking', IN(LTRIM(RTRIM(deposit_account_type__)),'150'),'Checking', IN(LTRIM(RTRIM(deposit_account_type__)),'151'),'Checking', IN(LTRIM(RTRIM(deposit_account_type__)),'314'),'Checking', IN(LTRIM(RTRIM(deposit_account_type__)),'320'),'Checking', IN(LTRIM(RTRIM(deposit_account_type__)),'345'),'Checking', IN(LTRIM(RTRIM(deposit_account_type__)),'380'),'Checking', IN(LTRIM(RTRIM(deposit_account_type__)),'381'),'Checking', IN(LTRIM(RTRIM(deposit_account_type__)),'382'),'Checking', IN(LTRIM(RTRIM(deposit_account_type__)),'386'),'Checking', IN(LTRIM(RTRIM(deposit_account_type__)),'387'),'Checking', IN(LTRIM(RTRIM(deposit_account_type__)),'330'),'HSA', IN(LTRIM(RTRIM(deposit_account_type__)),'331'),'HSA', IN(LTRIM(RTRIM(deposit_account_type__)),'161'),'Money Management', IN(LTRIM(RTRIM(deposit_account_type__)),'351'),'Money Management', IN(LTRIM(RTRIM(deposit_account_type__)),'375'),'Portfolio Investment', IN(LTRIM(RTRIM(deposit_account_type__)),'376'),'Portfolio Investment', IN(LTRIM(RTRIM(deposit_account_type__)),'377'),'Portfolio Investment', IN(LTRIM(RTRIM(deposit_account_type__)),'385'),'Portfolio Investment', IN(LTRIM(RTRIM(deposit_account_type__)),'303'),'Sweep LOC', IN(LTRIM(RTRIM(deposit_account_type__)),'841'),'Sweep LOC', IN(LTRIM(RTRIM(deposit_account_type__)),'842'),'Sweep LOC', IN(LTRIM(RTRIM(deposit_account_type__)),'843'),'Sweep LOC', IN(LTRIM(RTRIM(deposit_account_type__)),'508'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'510'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'512'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'518'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'524'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'536'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'540'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'548'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'560'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'572'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'584'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'596'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'597'),'Long Term - 1 Year or More', IN(LTRIM(RTRIM(deposit_account_type__)),'599'),'Savings', IN(LTRIM(RTRIM(deposit_account_type__)),'503'),'Short Term - Less than 1 Year', IN(LTRIM(RTRIM(deposit_account_type__)),'507'),'Short Term - Less than 1 Year', IN(LTRIM(RTRIM(deposit_account_type__)),'532'),'Short Term - Less than 1 Year', IN(LTRIM(RTRIM(deposit_account_type__)),'582'),'Short Term - Less than 1 Year', IN(LTRIM(RTRIM(deposit_account_type__)),'851'),'Holiday', IN(LTRIM(RTRIM(deposit_account_type__)),'820'),'Savings', IN(LTRIM(RTRIM(deposit_account_type__)),'825'),'Savings', IN(LTRIM(RTRIM(deposit_account_type__)),'830'),'Savings', IN(LTRIM(RTRIM(deposit_account_type__)),'845'),'Savings', IN(LTRIM(RTRIM(deposit_account_type__)),'887'),'Savings' ) """# let stringRange = NSRange(location: 0, length: testString.utf16.count) let matches = regex.matches(in: testString, range: stringRange) var result: [[String]] = [] for match in matches { var groups: [String] = [] for rangeIndex in 1 ..< match.numberOfRanges { let nsRange = match.range(at: rangeIndex) guard !NSEqualRanges(nsRange, NSMakeRange(NSNotFound, 0)) else { continue } let string = (testString as NSString).substring(with: nsRange) groups.append(string) } if !groups.isEmpty { result.append(groups) } } 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