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
Processing...

Test String

Code Generator

Language

Generated Code

import re regex = re.compile(r"(?P<line1>^(\w|\s+\w)[a-z]\w+[^\d:]*$)\n(\s+)?(?P<line2>(([A-Za-z ,()]+)|(.*)?(\(\w+.*\)))(\s+)?((-[\d,]+|[\d,]+)\s(\s+)?(-[\d,]+|[\d,]+).*))", flags=re.MULTILINE) test_str = ("Frontken Corporation Berhad -651020-T 55\n" "ANNUAL REPORT 2016\n" "statements Of cash Flows \n" "For The Year Ended 31 December 2016\n" " The Group The company \n" " 2016 2015 2016 2015\n" " Rm Rm Rm Rm\n" "CASH FLOWS FROM/ (FOR) OPERATING ACTIVITIES \n" "Profit before tax 33,344,738 15,998,086 6,154,262 178,853\n" "Adjustments for: \n" " Depreciation of property, plant \n" " and equipment 17,193,402 18,132,726 24,047 23,816\n" " Interest expense 1,146,951 1,494,353 340,916 555,514\n" " Allowance for impairment loss \n" " on plant and equipment 51,841 1,713,303 0 0 \n" " Unrealised (gain)/loss on \n" " foreign exchange -1,428,927 -2,918,303 -14,377 2,217,362\n" " Allowance for impairment losses \n" " on amount owing by a subsidiary 0 0 1,476,080 0 \n" " Allowance for impairment losses \n" " on receivables 133,461 294,518 0 0 \n" " Impairment loss on investment \n" " in subsidiaries 0 0 0 441,468\n" " Inventories written down to net \n" " realisable value 0 52,272 0 0 \n" " Inventories written off 492,724 146,823 0 0 \n" " (Gain)/Loss on dissolution of a subsidiary -719,412 0 107,770 0 \n" " Property, plant and equipment written off 411,330 2,919,978 0 0 \n" " Share of results in associates 108,525 -25,186 0 0 \n" " Loss on disposal of investment in \n" " a subsidiary 0 1,870,011 0 323,468\n" " Interest income -769,559 -780,339 -593,490 -879,365\n" " Loss/(Gain) on disposal of property, \n" " plant and equipment 68,214 -6,669 0 0 \n" " Writeback of allowance for impairment \n" " losses on trade receivables -1,196 -717,433 0 0 \n" " dividend income from subsidiaries 0 0 -10,313,095 -5,084,439 \n" "Operating Profit/(Loss) Before\n" " Working Capital Changes 50,032,092 38,174,140 -2,817,887 -2,223,323\n" "The accompanying Notes form an integral part of these Financial Statements.\n" "56 Frontken Corporation Berhad -651020-T\n" "ANNUAL REPORT 2016\n" "statements Of cash Flows \n" "For The Year Ended 31 December 2016 (cont’d)\n" " The Group The company \n" " 2016 2015 2016 2015\n" " Rm Rm Rm Rm\n" "Decrease/(Increase) in: \n" " Inventories 752,679 -968,022 0 0 \n" " Amount owing by a contract \n" " customer 0 1,837,000 0 0 \n" " Trade receivables -5,097,661 27,182,094 0 0 \n" " Other receivables and \n" " prepaid expenses 1,172,632 -733,496 -23,556 25,634\n" " Amount owing by associates -3,771 28,485 0 0 \n" "Increase/(Decrease) in: \n" " Trade payables -11,074,834 -8,029,512 0 0 \n" " Other payables and accrued expenses 15,324,322 -4,748,405 -138,524 -455,447 \n" "Cash Generated From/\n" " (For) Operations 51,105,459 52,742,284 -2,979,967 -2,653,136 \n" "Taxes paid -6,681,818 -8,242,591 0 0 \n" "Net Cash From/(For) \n" " Operating Activities 44,423,641 44,499,693 -2,979,967 -2,653,136 \n" "CASH FLOWS (FOR)/FROM INVESTING ACTIVITIES \n" "Repayment from subsidiaries 0 0 8,435,398 5,252,690\n" "Purchase of property, plant and \n" " equipment -27,730,908 -7,196,780 -2,929 -2,849\n" "dividend received from subsidiaries 0 0 4,268,995 4,634,439\n" "Additional investment/acquisition \n" " of subsidiaries (Note 11) -7,399,144 -6,862,024 -7,399,142 -5,103,100\n" "Net cash outflow on disposal of a \n" " subsidiary (Note 11) 0 -785,413 0 0 \n" "Proceeds from disposal of property, plant\n" " and equipment 188,769 77,955 0 -\n" "proceeds from disposal of a subsidiary 0 0 0 85,304\n" "Short-term investment -2,243,001 0 0 0 \n" "Net withdrawal/(placement) of fixed\n" " deposits with licensed banks 1,377,357 6,600,196 -32,254 6,967,605\n" "Interest received 769,559 780,339 593,490 879,365 \n" "Net Cash (For)/From \n" " Investing Activities -35,037,368 -7,385,727 5,863,558 12,713,454\n" "The accompanying Notes form an integral part of these Financial Statements.\n" "Frontken Corporation Berhad -651020-T 57\n" "ANNUAL REPORT 2016\n" "statements Of cash Flows \n" "For The Year Ended 31 December 2016 (cont’d)\n" " The Group The company \n" " note 2016 2015 2016 2015\n" " Rm Rm Rm Rm\n" "CASH FLOWS (FOR)/FROM FINANCING ACTIVITIES \n" "decrease in amount owing to\n" " subsidiaries 0 0 -1,680,840 -2,275,689\n" "Treasury shares acquired -64,491 -33,751 -64,491 -33,751\n" "proceeds from issuance of shares 0 7,564,855 0 7,564,855\n" "repayment of term loans -30,567,224 -878,769 -1,936,843 -1,810,825\n" "Interest paid -1,146,951 -1,494,353 -340,916 -555,514\n" "dividend paid by a subsidiary to non-\n" " controlling interests -2,151,371 -1,806,882 0 0 \n" "Drawdown of term loans 16,146,540 4,401,620 0 -\n" "payment of hire purchase payables -689,599 -1,506,234 0 0 \n" "net cash (For)/From\n" " Financing Activities -18,473,096 6,246,486 -4,023,090 2,889,076 \n" "net (Decrease)/increase \n" " in cash And cash \n" " Equivalents -9,086,823 43,360,452 -1,139,499 12,949,394 \n" "Effect of exchange rate changes 2,037,383 9,181,739 63,094 116,833 \n" "cAsH AnD cAsH EQUiVALEnTs \n" " AT BEGinninG OF YEAR 105,117,339 52,575,148 16,460,512 3,394,285 \n" "cAsH AnD cAsH EQUiVALEnTs \n" "*\n" " AT EnD OF YEAR 98,067,899 105,117,339 15,384,107 16,460,512\n" "Note : During the financial year, the Group and the Company acquired property, plant and equipment at an aggregate cost \n" "of RM27,900,908 and RM2,929 -2015 : RM7,196,780 and RM2,849, respectively, of which RM170,000 and NIL \n" "-2015 : NIL and NIL, respectively, was acquired under hire-purchase arrangements. \n" "*\n" " The Group The company \n" " 2016 2015 2016 2015\n" " Rm Rm Rm Rm\n" "cAsH AnD cAsH EQUiVALEnTs \n" "Cash and bank balances 88,745,512 94,486,988 9,993,581 14,460,511\n" "Fixed deposits with licensed banks 5,872,035 15,310,588 1,072,697 3,040,444\n" "Short-term investments - unit trust 6,753,232 0 5,390,526 0 \n" " 101,370,779 109,797,576 16,456,804 17,500,955\n" "Less: Fixed deposits pledged with banks -3,205,263 -4,680,237 -1,072,697 -1,040,443\n" "Less: Fixed deposits with maturity \n" " period more than 3months -97,617 0 0 0 \n" "Cash and cash equivalents 98,067,899 105,117,339 15,384,107 16,460,512\n" "The accompanying Notes form an integral part of these Financial Statements.") matches = regex.finditer(test_str) for match_num, match in enumerate(matches, start=1): print(f"Match {match_num} 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