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

r"
"
gm

Test String

Substitution

Processing...

Code Generator

Language

Generated Code

re = /(?m)\s*'\s*(.*?)\s*'\s*(?:,\s*|$)/m str = '\'MLS Number\\n2201211\\nCounty\\nCass\\nCity\\nRaymore\\nSub Div\\nEvan Brook\\nType\\nSingle Family\\nFloor Plan Description\\nSplit Entry\\nBdrms\\n4\\nBaths Full\\n3\\nBaths Half\\n0\\nAge Description\\n16-20 Years\\nYear Built\\n2003\\nSqft Main\\n1500\\nSQFT MAIN SOURCE\\nOwner\\nBelow Grade Finished Sq Ft\\n500\\nBelow Grade Finished Sq Ft Source\\nOwner\\nSqft\\n2000\\nLot Size\\n115x130\\nSchool District\\nRaymore-Peculiar\\nLegal Description\\nEVAN-BROOK LOT 184\\nS Terms\\nConventional\', \'Fireplace?\\nY\\nFireplace Description\\nFamily Room\\nBasement\\nY\\nBasement Description\\nConcrete, Finished, Walk Out\\nDining Area Description\\nKit/Dining Combo\\nUtility Room\\nOff The Kitchen, Laundry Room\\nOther Room\\nFamily Room\\nInterior Features\\nKitchen Island, Painted Cabinets, Vaulted Ceiling, Walk-In Closet, Whirlpool Tub, Wood Floor\\nEquipment\\nCeiling Fan(s), Dishwasher, Disposal, Gar Door Opener(s), Rng/Oven- Electric, Refrigerator, Stainless Appliances\', \'Rooms\\nLiving Room\\nLevel 1\\nKitchen\\nLevel 1\\nLiving Rm- 2nd\\nLevel B\\nBathroom Full\\nLevel 1\\nMaster Bedroom\\nLevel 1\\nMaster Bathroom\\nLevel 1\\nSecond Bedroom\\nLevel 1\\nThird Bedroom\\nLevel 1\\nFourth Bedroom\\nLevel B\\n2nd Full Bath\\nLevel B\', \'Garage/Parking?\\nY\\nGarage/Parking #\\n3\\nGarage Description\\nAttached, Side Entry\\nConstruction\\nFrame\\nArchitecture\\nTraditional\\nRoof\\nComposition\\nLot Description\\nCorner Lot\\nIn Floodplain\\nNo\\nExterior Features\\nDeck, Fence- Wood, Porch, Storage Shed\', \'Central Air\\nY\\nHeat\\nForced Air Gas\\nCool\\nCentral Electric\\nWater\\nCity/Public\\nSewer\\nCity/Public\' ' subst = '\\1\\\\n' result = str.gsub(re, subst) # Print the result of the substitution puts 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 Ruby, please visit: http://ruby-doc.org/core-2.2.0/Regexp.html