Regular Expressions 101

Save & Share

  • Regex Version: ver. 1
  • Update Regex
    ctrl+⇧+s
  • Save new Regex
    ctrl+s
  • Add to Community Library

Flavor

  • PCRE2 (PHP >=7.3)
  • PCRE (PHP <7.3)
  • ECMAScript (JavaScript)
  • Python
  • Golang
  • Java 8
  • .NET 7.0 (C#)
  • Rust
  • Regex Flavor Guide

Function

  • Match
  • Substitution
  • List
  • Unit Tests

Tools

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
No Match

/
/
gm

Test String

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"(?<=\d{4}\.\d{3}\.\d{3}.*).*\n(.+)" test_str = ("Number\n" "5012993885\n" "Transport\n" "23943538\n" "Contact person\n" "Lenka Boček\n" "E-Mail\n" "Date\n" "24.01.2024\n\n" "Telephone\n" "00420 731316628\n" " \n" " \n" "Your VAT No.\n" "BG175423111\n" " \n" "Shipment by\n" "Parcel service\n" "Forwarder\n" "UPS United Parcel Service\n" "Item Part Number\n" "Description\n" "Suffix Quantity\n" "Piece\n" "Price/ \n" "EUR \n" " Per\n" " PCE\n" "Disc.% Amount\n" "EUR\n" "Customer Material / Material entered / OE-Number\n" "Transport: 23943538\n" "Order No.: 3192166 Your Reference: A202401241118\n" " 11 4149.310.025 000 1 37,78 1 37,78 \n" "PISTON\n" "HS.code: 87084099 Country of origin: EU/DE\n" "EAN: 2050000141478\n" " 21 0734.401.251 000 4 3,05 1 12,20 \n" "PISTON RING\n" "HS.code: 73182100 Country of origin: JP\n" "EAN: 2050000026638\n" " 31 0750.116.391 000 1 35,50 1 35,50 \n" "BALL BEARING\n" "HS.code: 84821090 Country of origin: JP\n" "EAN: 2050000088643\n" " 41 0634.314.358 000 1 5,57 1 5,57 \n" "O-RING\n" "HS.code: 39269097 Country of origin: EU/IT\n" "EAN: 2050000017476\n" " 51 0734.401.080 000 1 5,41 1 5,41 \n" "PISTON RING\n" "HS.code: 73182100 Country of origin: JP\n" "EAN: 2050000028885\n" " 61 4139.210.082 000 1 55,70 1 55,70 \n" "BUSH\n" "HS.code: 73182900 Country of origin: EU/DE\n" "EAN: 2050000111631\n" "Number 5012993885\n" "Date 24.01.2024\n" "carry forward 152,16 \n" "Item Part Number\n" "Description\n" "Suffix Quantity\n" "Piece\n" "Price/ \n" "EUR \n" " Per\n" " PCE\n" "Disc.% Amount\n" "EUR\n" "Customer Material / Material entered / OE-Number\n" " 71 0734.401.277 000 1 110,41 1 110,41 \n" "RECTANGULAR RING\n" "HS.code: 73182100 Country of origin: QU\n" "EAN: 2050000103230\n" " 81 0634.313.017 000 1 0,81 1 0,81 \n" "O-RING\n" "HS.code: 39269097 Country of origin: EU/IT\n" "EAN: 2050000057557\n" " 91 4149.320.018 000 1 79,19 1 79,19 \n" "BUSH\n" "HS.code: 76169990 Country of origin: EU/DE\n" "EAN: 2050000144653\n" " 101 0750.115.518 000 1 2,16 1 2,16 \n" "NEEDLE SLEEVE\n" "HS.code: 84824000 Country of origin: EU/DE\n" "EAN: 2050000086328\n" " 111 0730.150.625 000 1 3,67 1 3,67 \n" "THRUST WASHER\n" "HS.code: 39269097 Country of origin: EU/DE\n" "EAN: 2050000082290\n" " 121 0750.115.520 000 2 5,97 1 11,94 \n" "NEEDLE CAGE\n" "HS.code: 84824000 Country of origin: EU/SK\n" "EAN: 2050000116179\n" " 131 0730.150.638 000 1 5,98 1 5,98 \n" "THRUST WASHER\n" "HS.code: 39269097 Country of origin: EU/DE\n" "EAN: 2050000104367\n" " 141 0730.150.630 000 1 12,98 1 12,98 \n" "THRUST WASHER\n" "HS.code: 39269097 Country of origin: EU/DE\n" "EAN: 2050000112317\n" " 151 0735.320.782 000 2 8,76 1 17,52 \n" "NEEDLE CAGE\n" "HS.code: 84824000 Country of origin: EU/SK\n" "EAN: 2050000060595\n" " 161 0730.150.637 000 1 4,67 1 4,67 \n" "THRUST WASHER\n" "HS.code: 39269097 Country of origin: EU/DE\n" "EAN: 2050000115325\n" " 171 0730.150.636 000 1 6,82 1 6,82 \n" "THRUST WASHER\n" "HS.code: 39269097 Country of origin: EU/DE\n" "EAN: 2050000082610\n" " 181 0730.150.639 000 1 3,55 1 3,55 \n" "THRUST WASHER\n" "HS.code: 39269097 Country of origin: EU/DE\n" "EAN: 2050000054846\n" " 191 0750.115.519 000 1 4,06 1 4,06 \n" "NEEDLE SLEEVE\n" "HS.code: 84824000 Country of origin: US\n" "EAN: 2050000080418\n" " 201 4139.333.040 000 1 2,10 1 2,10 \n" "FIXING PLATE\n" "HS.code: 87084099 Country of origin: EU/DE\n" "EAN: 2050000043369\n" "Item Part Number\n" "Description\n" "Suffix Quantity\n" "Piece\n" "Price/ \n" "EUR \n" " Per\n" " PCE\n" "Disc.% Amount\n" "EUR\n" "Customer Material / Material entered / OE-Number\n" " 211 0630.513.028 000 1 1,25 1 1,25 \n" "SNAP RING\n" "HS.code: 73182100 Country of origin: EU/IT\n" "EAN: 2050000007927\n" " 221 4139.333.373 000 1 18,43 1 18,43 \n" "DISC\n" "HS.code: 87084099 Country of origin: EU/DE\n" "EAN: 2050000055355\n" " 231 4139.333.172 000 1 13,40 1 13,40 \n" "O.CLUTCH DISC\n" "HS.code: 87084099 Country of origin: EU/DE\n" "EAN: 2050000139765\n" " 241 4139.333.036 000 1 4,55 1 4,55 \n" "I.CLUTCH DISC\n" "HS.code: 87084099 Country of origin: EU/DE\n" "EAN: 2050000132223\n" " 251 4149.370.005 000 1 12,96 1 12,96 \n" "O.CLUTCH DISC\n" "HS.code: 87084099 Country of origin: EU/DE\n" "EAN: 2050000134135\n" " 261 4139.333.437 000 1 18,36 1 18,36 \n" "DISC\n" "HS.code: 87084099 Country of origin: EU/DE\n" "EAN: 2050000071713\n" " 271 4139.333.263 000 1 17,98 1 17,98 \n" "O.CLUTCH DISC\n" "HS.code: 87084099 Country of origin: EU/DE\n" "EAN: 2050000104916\n" " 281 4139.333.745 000 3 17,05 1 51,15 \n" "O.CLUTCH DISC\n" "HS.code: 87084099 Country of origin: EU/DE\n" "EAN: 2050000143649\n" " 291 4139.333.766 000 1 21,36 1 21,36 \n" "O.CLUTCH DISC\n" "HS.code: 87084099 Country of origin: EU/DE\n" "EAN: 2050000081705\n" " 301 0734.307.302 000 1 18,92 1 18,92 \n" "LIP SEALING RING\n" "HS.code: 84842000 Country of origin: EU/DE\n" "EAN: 2050000176593\n" " 311 0734.300.504 000 1 15,46 1 15,46 \n" "PISTON RING\n" "HS.code: 39269097 Country of origin: EU/DE\n" "EAN: 2050000174032\n" " 321 0734.300.503 000 1 12,19 1 12,19 \n" "PISTON RING\n" "HS.code: 39269097 Country of origin: EU/DE\n" "EAN: 2050000176807\n" " 331 0750.117.625 000 1 31,26 1 31,26 \n" "TAPERED ROLLER BEARING\n" "HS.code: 84822000 Country of origin: CN\n" "EAN: 2050000123405\n" " 341 0730.103.590 000 1 2,79 1 2,79 \n" "WASHER\n" "HS.code: 73182200 Country of origin: EU/DE\n" "EAN: 2050000109447\n" "carry forward 658,08 4/7 \n" "Item Part Number\n" "Description\n" "Suffix Quantity\n" "Piece\n" "Price/ \n" "EUR \n" " Per\n" " PCE\n" "Disc.% Amount\n" "EUR\n" "Customer Material / Material entered / OE-Number\n" " 351 0730.103.589 000 1 2,00 1 2,00 \n" "WASHER\n" "HS.code: 73182200 Country of origin: EU/DE\n" "EAN: 2050000099366\n" " 361 0750.117.621 000 1 32,82 1 32,82 \n" "TAPERED ROLLER BEARING\n" "HS.code: 84822000 Country of origin: JP\n" "EAN: 2050000124365\n" " 371 0730.103.362 000 1 7,67 1 7,67 \n" "SPACER WASHER\n" "HS.code: 73182200 Country of origin: EU/DE\n" "EAN: 2050000071355\n" " 381 0730.008.417 000 1 3,02 1 3,02 \n" "WASHER\n" "HS.code: 73182200 Country of origin: EU/DE\n" "EAN: 2050006139165\n" " 391 0730.008.418 000 1 3,02 1 3,02 \n" "WASHER\n" "HS.code: 73182200 Country of origin: EU/DE\n" "EAN: 2050000101281\n" " 401 0730.008.420 000 1 4,31 1 4,31 \n" "WASHER\n" "HS.code: 73182200 Country of origin: EU/DE\n" "EAN: 2050000158292\n" " 411 0730.008.423 000 1 3,02 1 3,02 \n" "WASHER\n" "HS.code: 73182200 Country of origin: EU/DE\n" "EAN: 2050000052804\n" " 421 0634.313.016 000 2 0,34 1 0,68 \n" "O-RING\n" "HS.code: 39269097 Country of origin: EU/IT\n" "EAN: 2050000024382\n" " 431 0730.002.769 000 7 0,74 1 5,18 \n" "WASHER\n" "HS.code: 73182200 Country of origin: EU/DE\n" "EAN: 2050000109171\n" " 441 0630.502.007 000 7 0,41 1 2,87 \n" "CIRCLIP\n" "HS.code: 73182100 Country of origin: CN\n" "EAN: 2050000012969\n" " 451 4139.306.217 000 7 7,95 1 55,65 \n" "PIN\n" "HS.code: 73170080 Country of origin: EU/DE\n" "EAN: 2050000093951\n" " 461 0501.214.850 000 1 68,29 1 68,29 \n" "OIL DIPSTICK\n" "HS.code: 90261089 Country of origin: EU/DE\n" "EAN: 2050000096211\n" " 471 4139.301.617 000 1 0,70 1 0,70 \n" "TAB WASHER\n" "HS.code: 73182100 Country of origin: EU/DE\n" "EAN: 2050000084041\n" " 481 0769.151.009 000 1 1,87 1 1,87 \n" "O-RING\n" "HS.code: 39269097 Country of origin: EU/IT\n" "EAN: 2050011096262\n" "carry forward 849,18 5/7 \n" "carry forward 849,18 \n" "Item Part Number\n" "Description\n" "Suffix Quantity\n" "Piece\n" "Price/ \n" "EUR \n" " Per\n" " PCE\n" "Disc.% Amount\n" "EUR\n" "Customer Material / Material entered / OE-Number\n" " 491 0501.210.798 000 1 10,08 1 10,08 \n" "SCREEN INSERT\n" "HS.code: 87084099 Country of origin: EU/IT\n" "EAN: 2050000005534\n" " 501 0735.368.102 000 1 70,18 1 70,18 \n" "AXIAL ROLLER BEARING\n" "HS.code: 84825000 Country of origin: EU/SK\n" "EAN: 2050000123191\n" " 511 0635.330.035 000 2 25,15 1 50,30 \n" "BALL BEARING\n" "HS.code: 84821090 Country of origin: IN\n" "EAN: 2050000051746\n" " 521 0635.900.523 000 1 8,94 1 8,94 \n" "AX.NEEDLE CAGE\n" "HS.code: 84829900 Country of origin: EU/DE\n" "EAN: 2050000012099\n" " 531 0634.402.140 000 1 3,22 1 3,22 \n" "R-RING\n" "HS.code: 73262000 Country of origin: JP\n" "EAN: 2050000102523\n" " 541 0501.213.150 000 2 52,97 1 105,94 \n" "I.CLUTCH DISC\n" "HS.code: 87084099 Country of origin: EU/PL\n" "EAN: 2050000017186\n" " 551 0501.334.482 000 2 91,72 1 183,44 \n" "OUTER CLUTCH DISK\n" "HS.code: 87084099 Country of origin: EU/DE\n" "EAN: 2050011198423\n" " 561 0501.334.483 000 2 116,68 1 233,36 \n" "OUTER CLUTCH DISK\n" "HS.code: 87084099 Country of origin: EU/DE\n" "EAN: 2050011198416\n" " 571 0750.106.074 000 1 124,26 1 124,26 \n" "CUP SPRING\n" "HS.code: 73209030 Country of origin: EU/DE\n" "EAN: 2050000062230\n" " 581 0501.320.311 000 1 16,72 1 16,72 \n" "SEALING RING\n" "HS.code: 40169300 Country of origin: EU/IE\n" "EAN: 2050000006746\n" " 591 0501.320.312 000 1 27,75 1 27,75 \n" "SEALING RING\n" "HS.code: 40169300 Country of origin: EU/IE\n" "EAN: 2050000021688\n" " 601 0634.313.840 000 1 15,01 1 15,01 \n" "O-RING\n" "HS.code: 39269097 Country of origin: EU/IT\n" "EAN: 2050000043406\n" " 611 0736.101.046 000 1 3,91 1 3,91 \n" "CAP SCREW\n" "HS.code: 73181568 Country of origin: EU/DE\n" "EAN: 2050000066542\n" " 621 0730.005.592 000 1 11,45 1 11,45 \n" "WASHER\n" "HS.code: 73182200 Country of origin: EU/DE\n" "EAN: 2050000028366\n" "carry forward 1.713,74 6/7 \n" "Item Part Number\n" "Description\n" "Suffix Quantity\n" "Piece\n" "Price/ \n" "EUR \n" " Per\n" " PCE\n" "Disc.% Amount\n" "EUR\n" "Customer Material / Material entered / OE-Number\n" " 631 0634.313.628 000 2 1,76 1 3,52 \n" "O-RING\n" "HS.code: 39269097 Country of origin: EU/IT\n" "EAN: 2050000092503\n" " 641 0501.221.565 000 1 111,27 1 111,27 \n" "PISTON\n" "HS.code: 87084099 Country of origin: EU/DE\n" "EAN: 2050010978361\n" " 651 4139.347.284 000 1 1,32 1 1,32 \n" "GASKET\n" "HS.code: 40169300 Country of origin: EU/DE\n" "EAN: 2050000074042\n" " 661 4139.347.275 000 2 0,69 1 1,38 \n" "GASKET\n" "HS.code: 40169300 Country of origin: EU/DE\n" "EAN: 2050005683713\n" " 671 4139.347.273 000 2 77,93 1 155,86 \n" "CONN.PART\n" "HS.code: 87084099 Country of origin: EU/DE\n" "EAN: 2050001798787\n" " 681 4139.298.939 009 1 52,37 1 52,37 \n" "SEALING RING KIT\n" "HS.code: 84849000 Country of origin: EU/DE\n" "EAN: 4053202129457\n" " 691 4139.298.943 009 1 115,37 1 115,37 \n" "SEAL KIT\n" "HS.code: 84849000 Country of origin: EU/DE\n" "EAN: 4053202129426\n" "Goods value: 2.154,83 \n" "Freight charges 14,45 \n" "Transport: 23943551\n" " 711 0630.361.026 000 1 6,82 1 6,82 \n" "SEALING CAP\n" "HS.code: 73269098 Country of origin: EU/DE\n" "EAN: 2050000286988\n" " 721 0634.303.110 000 1 2,62 1 2,62 \n" "O-RING\n" "HS.code: 40169300 Country of origin: EU/IT\n" "EAN: 2050000069956\n" " 731 0634.316.304 000 1 3,77 1 3,77 \n" "O-RING\n" "HS.code: 39269097 Country of origin: EU/IT\n" "EAN: 2050000014369\n" "Goods value: 13,21 \n" "Freight charges 24,40 \n" "Subtotal 2.168,04 \n" "Freight charges 38,85 \n" "Total amount 2.206,89 \n" "Terms of payment Up to 07.02.2024 you receive 2,000 % discount Up to 24.03.2024 without deduction\n" "Tax free supply within the EEC in terms of §6a VAT Law.\n" "Packaging 2 collies Gross weight/kg 19,00 Net weight/kg 17,50 \n" "Marks:7/7 \n\n") matches = re.finditer(regex, test_str, re.MULTILINE) for matchNum, match in enumerate(matches, start=1): print ("Match {matchNum} was found at {start}-{end}: {match}".format(matchNum = matchNum, start = match.start(), end = match.end(), match = match.group())) for groupNum in range(0, len(match.groups())): groupNum = groupNum + 1 print ("Group {groupNum} found at {start}-{end}: {group}".format(groupNum = groupNum, start = match.start(groupNum), end = match.end(groupNum), group = match.group(groupNum))) # 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