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

/
/
gm

Test String

Substitution

Processing...

Code Generator

Language

Generated Code

# coding=utf8 # the above tag defines encoding for this document and is for Python 2.x compatibility import re regex = r"(?<g1>^.+)(?<g2>\|)(?<g3>\w*)" test_str = ("VERNIZ FOSCO PU 5:1|6190734832\n" "VERNIZ FOSCO PU BICO|6190737676\n" "VERNIZ FOSCO SAYERLACK 900ML|5482326670\n" "VERNIZ MARITIMO INCOLOR - [3,6 LT]|6605544243\n" "VERNIZ MARITIMO INCOLOR - [900 ML]|6605544245\n" "VERNIZ PU 0491 - DUXONE|2739465076\n" "VERNIZ PU 10.000 SKYLACK|5026534877\n" "VERNIZ PU 6100 - LAZZURIL|2422595915\n" "VERNIZ PU 8050 - LAZZURIL|2422595909\n" "VERNIZ PU BRILHO 20|5109244189\n" "VERNIZ PU FOSCO - LAZZURIL|2730718333\n" "VERNIZ PU FOSCO - [750 ML] - SKYLACK|3551612362\n" "VERNIZ PU MASCARA NEGRA|4988056487\n" "VERNIZ PU SEMI-FOSCO|4717802264\n" "VERNIZ PU SEMI-FOSCO - 3600 ML - FARBEN|3850897363\n" "VERNIZ PU SEMI-FOSCO - 750 ML|4909315994\n" "VERNIZ PU SEMI-FOSCO - 900 ML - FARBEN|3850897360\n" "VERNIZ PU SEMI-FOSCO 750ML|5026534871\n" "VERNIZ PU TRANSPARENTE FOSCO – 6713 - SAYERLACK|3475203973\n" "VERNIZ SKYFAST HS 5:1 - SKYDUR - [900 ML]|4359364616\n" "VERNIZ ULTRA 7000|2587796536\n" "VESUVIO|4507424840\n" "VIOLETA PU C/ CAT|6902409301\n" "WASH PRIMER - [600 M|6190739255\n" "WASH PRIMER - [600 ML] - BRAZILIAN|6121038554\n" "WASH PRIMER VINILICO|6190737471\n" "WASH/PRETO FOSCO - DX9000 - [600 ML] - BRASILUX - KIT|2422594658\n" "WASH/PRETO FOSCO - DX9000 - [600 ML] - DUXONE - KIT|3147792988\n" "WASH/PRETO FOSCO - [600 ML] - MAXIRUBBER|4528448069\n" "WASH/PRETO FOSCO - [900 ML] - MAZA - KIT|3583355677\n" "WASHPRIMER 1/4|6190735139\n" "WHITE LUB - [300 ML]|4648227158\n" "ZARCAO - [3,6 LT]|6605544226\n") subst = "${g3}" # You can manually specify the number of replacements by changing the 4th argument result = re.sub(regex, subst, test_str, 0, re.MULTILINE) if result: print (result) # Note: for Python 2.7 compatibility, use ur"" to prefix the regex and u"" to prefix the test string and 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 Python, please visit: https://docs.python.org/3/library/re.html