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
  • Match everything enclosed
    (?:...)
  • Capture everything enclosed
    (...)
  • 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

/
/
smg

Test String

Substitution

Processing...

Code Generator

Language

Generated Code

re = /^(\S*)\s+([\-\+])\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)/m str = 'BER_333_10173 - 72 812 1372 2180 2250 87 BER_333_10173 + 72 812 1372 2180 2250 88 BER_333_10173 + 72 812 1372 2180 2250 92 BER_333_10173 - 72 812 1372 2180 2250 93 633310098 + 69,7 909,7 1619,8 2379,8 2430 111 633310098 - 69,8 909,8 1619,8 2379,8 2430 110 633310098 - 69,7 909,7 1619,8 2379,8 2430 97 633310098 + 69,8 909,8 1619,8 2379,8 2430 96 633310099 - 71,11 662,02 1343,05 2050 2100 55 633310099 + 71,11 662,01 1343,08 2050 2100 56 633310099 + 71,11 662,02 1343,05 2050 2100 59 633310099 - 71,11 662,01 1343,08 2050 2100 60 633310108 - 68,7 716 1461 2249 2299 112 633310108 + 68,7 716 1461 2249 2299 113 BER_333_10176 - 153,5 843,5 1503,5 2278,5 2430 119 BER_333_10176 + 153,5 843,5 1503,5 2278,5 2430 120 BER_333_10195 - 72,55 522,53 1172,51 1722,55 1875 63 BER_333_10195 + 72,55 522,53 1172,51 1722,55 1875 64 BER_333_10195 + 72,55 522,53 1172,51 1722,55 1875 61 BER_333_10195 - 72,55 522,53 1172,51 1722,55 1875 62 BER_333_10175 - 99,8 939,8 1899,8 0 1980 125 BER_333_10175 + 99,8 939,8 1899,8 0 1980 126 BER_333_10175 + 99,8 939,8 1899,8 0 1980 123 BER_333_10175 - 99,8 939,8 1899,8 0 1980 124 BER_333_10197 - 62 716 1249 1949 1999 121 BER_333_10197 + 62 716 1249 1949 1999 122 BER_333_10193 - 72,46 522,47 1172,41 1722,43 1875 65 BER_333_10193 + 72,43 522,44 1172,41 1722,43 1875 66 ' subst = ';$1\\nLBL $8\\nQ10 = $2 $7 ; Longueur entretoises\\nQ11 = $2 $3 ; TROU 1\\nQ12 = $2 $4 ; TROU 2\\nQ13 = $2 $5 ; TROU 3\\nQ14 = $2 $6 ; TROU 4\\nCALL LBL 1' 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