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

Generated Code

package main import ( "regexp" "fmt" ) func main() { var re = regexp.MustCompile(`(?m)(<CreditApplication ID=\x222222222\x22>)(\s+\S+.*\s+)+(<\/CreditApplication>)`) var str = `<CreditApplication ID="1111111"> <CreditApplicationDetails> <DecisionID>11223366</DecisionID> <LenderReference>256548</LenderReference> </CreditApplicationDetails> <CreditApplicationHistoryLogs> <Log ID="25486522"> <Status>FULFILLED</Status> <Timestamp>2018-06-02T11:52:05+01:00</Timestamp> </Log> </CreditApplicationHistoryLogs> <ConsumerDetails> <Title>Mr</Title> <FirstName>ROXY</FirstName> </ConsumerDetails> <Decision ID="2255222"> <PolicyName>Credit Strategy V20</PolicyName> <DecisionStatus>ACCEPT</DecisionStatus> <Timestamp>2018-06-02T11:38:36+01:00</Timestamp> <Rule> <RuleNumber>1</RuleNumber> <RuleName>Applicant over 18 years old</RuleName> </Rule> <Rule> <RuleNumber>140</RuleNumber> <RuleName>Notice of correction found</RuleName> </Rule> </Decision> <CreditSentryData> <MobileStatus>1</MobileStatus> </CreditSentryData> </CreditApplication> <CreditApplication ID="2222222"> <CreditApplicationDetails> <DecisionID>25252525</DecisionID> <LenderReference>3636365</LenderReference> </CreditApplicationDetails> <CreditApplicationHistoryLogs> <Log ID="454545"> <Status>FULFILLED</Status> <Timestamp>2018-06-02T11:52:05+01:00</Timestamp> </Log> </CreditApplicationHistoryLogs> <ConsumerDetails> <Title>Mr</Title> <FirstName>AMIT</FirstName> </ConsumerDetails> <Decision ID="112255874"> <PolicyName>Credit Strategy V20</PolicyName> <DecisionStatus>ACCEPT</DecisionStatus> <Timestamp>2018-06-02T11:38:36+01:00</Timestamp> <Rule> <RuleNumber>1</RuleNumber> <RuleName>Applicant over 18 years old</RuleName> </Rule> <Rule> <RuleNumber>140</RuleNumber> <RuleName>Notice of correction found</RuleName> </Rule> </Decision> <CreditSentryData> <MobileStatus>1</MobileStatus> </CreditSentryData> </CreditApplication> <CreditApplication ID="33665588"> <CreditApplicationDetails> <DecisionID>558454</DecisionID> <LenderReference>669855</LenderReference> </CreditApplicationDetails> <CreditApplicationHistoryLogs> <Log ID="254112"> <Status>FULFILLED</Status> <Timestamp>2018-06-02T11:52:05+01:00</Timestamp> </Log> </CreditApplicationHistoryLogs> <ConsumerDetails> <Title>Mr</Title> <FirstName>KATY</FirstName> </ConsumerDetails> <Decision ID="254125"> <PolicyName>Credit Strategy V20</PolicyName> <DecisionStatus>ACCEPT</DecisionStatus> <Timestamp>2018-06-02T11:38:36+01:00</Timestamp> <Rule> <RuleNumber>1</RuleNumber> <RuleName>Applicant over 18 years old</RuleName> </Rule> <Rule> <RuleNumber>140</RuleNumber> <RuleName>Notice of correction found</RuleName> </Rule> </Decision> <CreditSentryData> <MobileStatus>1</MobileStatus> </CreditSentryData> </CreditApplication>` var substitution = "" fmt.Println(re.ReplaceAllString(str, substitution)) }

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 Golang, please visit: https://golang.org/pkg/regexp/