Save & Share

Flavor

  • PCRE2 (PHP)
  • ECMAScript (JavaScript)
  • Python
  • Golang
  • Java
  • .NET 7.0 (C#)
  • Rust
  • PCRE (Legacy)
  • Regex Flavor Guide

Function

  • Match
  • Substitution
  • List
  • Unit Tests
Sponsors
There are currently no sponsors. Become a sponsor today!
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
Processing...

Test String

Code Generator

Language

Generated Code

import re regex = re.compile(r"'Target.*Write MBps\n(?:[\w; %\.]+,){9}([\w; %\.]+)") test_str = ("'Test Type,Test Description,,,,,,,,,,\n" "0,,,,,,,,,,,\n" "'Version,,,,,,,,,,,\n" "2006.07.27,,,,,,,,,,,\n" "'Time Stamp,,,,,,,,,,,\n" "2016-01-06 19:40:56:182,,,,,,,,,,,\n" "'Test Type,Test Description,,,,,,,,,,\n" "0,,,,,,,,,,,\n" "'Version,,,,,,,,,,,\n" "2006.07.27,,,,,,,,,,,\n" "'Time Stamp,,,,,,,,,,,\n" "2016-01-06 19:41:32:625,,,,,,,,,,,\n" "'Test Type,Test Description,,,,,,,,,,\n" "0,,,,,,,,,,,\n" "'Version,,,,,,,,,,,\n" "2006.07.27,,,,,,,,,,,\n" "'Time Stamp,,,,,,,,,,,\n" "2016-01-06 19:41:53:145,,,,,,,,,,,\n" "'Test Type,Test Description,,,,,,,,,,\n" "0,,,,,,,,,,,\n" "'Version,,,,,,,,,,,\n" "2006.07.27,,,,,,,,,,,\n" "'Time Stamp,,,,,,,,,,,\n" "2016-01-06 19:43:53:456,,,,,,,,,,,\n" "'Access specifications,,,,,,,,,,,\n" "'Access specification name,default assignment,,,,,,,,,,\n" "512B; 100% Read; 0% random,0,,,,,,,,,,\n" "'size,% of size,% reads,% random,delay,burst,align,reply,,,,\n" "209715712,100,100,0,0,1,0,0,,,,\n" "'End access specifications,,,,,,,,,,,\n" "'Results,,,,,,,,,,,\n" "'Target Type,Target Name,Access Specification Name,# Managers,# Workers,# Disks,IOps,Read IOps,Write IOps,MBps,Read MBps,Write MBps\n" "ALL,All,512B; 100% Read; 0% random,1,1,1,0.571416,0.571416,0,114.283511,114.283511,0\n" "MANAGER,A01030016NB,512B; 100% Read; 0% random,,1,1,0.571416,0.571416,0,114.283511,114.283511,0\n" "PROCESSOR,CPU 0,,,,,,,,,,\n" "PROCESSOR,CPU 1,,,,,,,,,,\n" "PROCESSOR,CPU 2,,,,,,,,,,\n" "PROCESSOR,CPU 3,,,,,,,,,,\n" "WORKER,Worker 1,512B; 100% Read; 0% random,,,1,0.571416,0.571416,0,114.283511,114.283511,0\n" "DISK,F:新增磁碟區,,,,,0.571416,0.571416,0,114.283511,114.283511,0\n" "'Time Stamp,,,,,,,,,,,\n" "2016-01-06 19:44:21:973,,,,,,,,,,,\n" "'Test Type,Test Description,,,,,,,,,,\n" "0,,,,,,,,,,,\n" "'Version,,,,,,,,,,,\n" "2006.07.27,,,,,,,,,,,\n" "'Time Stamp,,,,,,,,,,,\n" "2016-01-06 19:45:17:785,,,,,,,,,,,\n" "'Access specifications,,,,,,,,,,,\n" "'Access specification name,default assignment,,,,,,,,,,\n" "512B; 100% Read; 0% random,0,,,,,,,,,,\n" "'size,% of size,% reads,% random,delay,burst,align,reply,,,,\n" "102912,100,100,0,0,1,0,0,,,,\n" "'End access specifications,,,,,,,,,,,\n" "'Results,,,,,,,,,,,\n" "'Target Type,Target Name,Access Specification Name,# Managers,# Workers,# Disks,IOps,Read IOps,Write IOps,MBps,Read MBps,Write MBps\n" "ALL,All,512B; 100% Read; 0% random,1,1,1,1216.250748,1216.250748,0,119.36836,119.36836,0\n" "MANAGER,A01030016NB,512B; 100% Read; 0% random,,1,1,1216.250748,1216.250748,0,119.36836,119.36836,0\n" "PROCESSOR,CPU 0,,,,,,,,,,\n" "PROCESSOR,CPU 1,,,,,,,,,,\n" "PROCESSOR,CPU 2,,,,,,,,,,\n" "PROCESSOR,CPU 3,,,,,,,,,,\n" "WORKER,Worker 1,512B; 100% Read; 0% random,,,1,1216.250748,1216.250748,0,119.36836,119.36836,0\n" "DISK,F:新增磁碟區,,,,,1216.250748,1216.250748,0,119.36836,119.36836,0\n" "'Time Stamp,,,,,,,,,,,\n" "2016-01-06 19:45:30:673,,,,,,,,,,,") match = regex.search(test_str) if match: print(f"Match was found at {match.start()}-{match.end()}: {match.group()}") for group_num, group in enumerate(match.groups(), start=1): print(f"Group {group_num} found at {match.start(group_num)}-{match.end(group_num)}: {group}")

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 Python, please visit: https://docs.python.org/3/library/re.html