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

@"
"
gm

Test String

Substitution

Processing...

Code Generator

Language

Generated Code

using System; using System.Text.RegularExpressions; public class Example { public static void Main() { string pattern = @"(?'Code'[A-Z]{3})\t(?'Number'[0-9]{3})\t(?'NumbersAfterDecimal'.*)\t(?'Name'.*)\t(?'UsedIn'.*)"; string substitution = @"/// <summary>\n/// \tCurrency: ${Name}\n/// \tUsed in: ${UsedIn}\n/// </summary>\n${Code} = ${Number},\n"; string input = @"AED 784 2 United Arab Emirates dirham United Arab Emirates AFN 971 2 Afghan afghani Afghanistan ALL 008 2 Albanian lek Albania AMD 051 2 Armenian dram Armenia ANG 532 2 Netherlands Antillean guilder Curaçao (CW), Sint Maarten (SX) AOA 973 2 Angolan kwanza Angola ARS 032 2 Argentine peso Argentina AUD 036 2 Australian dollar Australia, Christmas Island (CX), Cocos (Keeling) Islands (CC), Heard Island and McDonald Islands (HM), Kiribati (KI), Nauru (NR), Norfolk Island (NF), Tuvalu (TV) AWG 533 2 Aruban florin Aruba AZN 944 2 Azerbaijani manat Azerbaijan BAM 977 2 Bosnia and Herzegovina convertible mark Bosnia and Herzegovina BBD 052 2 Barbados dollar Barbados BDT 050 2 Bangladeshi taka Bangladesh BGN 975 2 Bulgarian lev Bulgaria BHD 048 3 Bahraini dinar Bahrain BIF 108 0 Burundian franc Burundi BMD 060 2 Bermudian dollar Bermuda BND 096 2 Brunei dollar Brunei BOB 068 2 Boliviano Bolivia BOV 984 2 Bolivian Mvdol (funds code) Bolivia BRL 986 2 Brazilian real Brazil BSD 044 2 Bahamian dollar Bahamas BTN 064 2 Bhutanese ngultrum Bhutan BWP 072 2 Botswana pula Botswana BYN 933 2 Belarusian ruble Belarus BZD 084 2 Belize dollar Belize CAD 124 2 Canadian dollar Canada CDF 976 2 Congolese franc Democratic Republic of the Congo CHE 947 2 WIR euro (complementary currency) Switzerland CHF 756 2 Swiss franc Switzerland, Liechtenstein (LI) CHW 948 2 WIR franc (complementary currency) Switzerland CLF 990 4 Unidad de Fomento (funds code) Chile CLP 152 0 Chilean peso Chile COP 170 2 Colombian peso Colombia COU 970 2[6] Unidad de Valor Real (UVR) (funds code)[6] Colombia CRC 188 2 Costa Rican colon Costa Rica CUC 931 2 Cuban convertible peso Cuba CUP 192 2 Cuban peso Cuba CVE 132 2 Cape Verdean escudo Cabo Verde CZK 203 2 Czech koruna Czechia[7] DJF 262 0 Djiboutian franc Djibouti DKK 208 2 Danish krone Denmark, Faroe Islands (FO), Greenland (GL) DOP 214 2 Dominican peso Dominican Republic DZD 012 2 Algerian dinar Algeria EGP 818 2 Egyptian pound Egypt ERN 232 2 Eritrean nakfa Eritrea ETB 230 2 Ethiopian birr Ethiopia EUR 978 2 Euro Åland Islands (AX), European Union (EU), Andorra (AD), Austria (AT), Belgium (BE), Croatia (HR), Cyprus (CY), Estonia (EE), Finland (FI), France (FR), French Southern and Antarctic Lands (TF), Germany (DE), Greece (GR), Guadeloupe (GP), Ireland (IE), Italy (IT), Kosovo (XK), Latvia (LV), Lithuania (LT), Luxembourg (LU), Malta (MT), French Guiana (GF), Martinique (MQ), Mayotte (YT), Monaco (MC), Montenegro (ME), Netherlands (NL), Portugal (PT), Réunion (RE), Saint Barthélemy (BL), Saint Martin (MF), Saint Pierre and Miquelon (PM), San Marino (SM), Slovakia (SK), Slovenia (SI), Spain (ES), Vatican City (VA) FJD 242 2 Fiji dollar Fiji FKP 238 2 Falkland Islands pound Falkland Islands (pegged to GBP 1:1) GBP 826 2 Pound sterling United Kingdom, Isle of Man (IM, see Manx pound), Jersey (JE, see Jersey pound), Guernsey (GG, see Guernsey pound), Tristan da Cunha (SH-TA) GEL 981 2 Georgian lari Georgia GHS 936 2 Ghanaian cedi Ghana GIP 292 2 Gibraltar pound Gibraltar (pegged to GBP 1:1) GMD 270 2 Gambian dalasi Gambia GNF 324 0 Guinean franc Guinea GTQ 320 2 Guatemalan quetzal Guatemala GYD 328 2 Guyanese dollar Guyana HKD 344 2 Hong Kong dollar Hong Kong HNL 340 2 Honduran lempira Honduras HTG 332 2 Haitian gourde Haiti HUF 348 2 Hungarian forint Hungary IDR 360 2 Indonesian rupiah Indonesia ILS 376 2 Israeli new shekel Israel INR 356 2 Indian rupee India, Bhutan IQD 368 3 Iraqi dinar Iraq IRR 364 2 Iranian rial Iran ISK 352 0 Icelandic króna (plural: krónur) Iceland JMD 388 2 Jamaican dollar Jamaica JOD 400 3 Jordanian dinar Jordan JPY 392 0 Japanese yen Japan KES 404 2 Kenyan shilling Kenya KGS 417 2 Kyrgyzstani som Kyrgyzstan KHR 116 2 Cambodian riel Cambodia KMF 174 0 Comoro franc Comoros KPW 408 2 North Korean won North Korea KRW 410 0[c] South Korean won South Korea KWD 414 3 Kuwaiti dinar Kuwait KYD 136 2 Cayman Islands dollar Cayman Islands KZT 398 2 Kazakhstani tenge Kazakhstan LAK 418 2 Lao kip Laos LBP 422 2 Lebanese pound Lebanon LKR 144 2 Sri Lankan rupee Sri Lanka LRD 430 2 Liberian dollar Liberia LSL 426 2 Lesotho loti Lesotho LYD 434 3 Libyan dinar Libya MAD 504 2 Moroccan dirham Morocco, Western Sahara MDL 498 2 Moldovan leu Moldova MGA 969 2[d] Malagasy ariary Madagascar MKD 807 2 Macedonian denar North Macedonia MMK 104 2 Myanmar kyat Myanmar MNT 496 2 Mongolian tögrög Mongolia MOP 446 2 Macanese pataca Macau MRU 929 2[d][9] Mauritanian ouguiya Mauritania MUR 480 2 Mauritian rupee Mauritius MVR 462 2 Maldivian rufiyaa Maldives MWK 454 2 Malawian kwacha Malawi MXN 484 2 Mexican peso Mexico MXV 979 2 Mexican Unidad de Inversion (UDI) (funds code) Mexico MYR 458 2 Malaysian ringgit Malaysia MZN 943 2 Mozambican metical Mozambique NAD 516 2 Namibian dollar Namibia (pegged to ZAR 1:1) NGN 566 2 Nigerian naira Nigeria NIO 558 2 Nicaraguan córdoba Nicaragua NOK 578 2 Norwegian krone Norway, Svalbard and Jan Mayen (SJ), Bouvet Island (BV) NPR 524 2 Nepalese rupee Nepal NZD 554 2 New Zealand dollar New Zealand, Cook Islands (CK), Niue (NU), Pitcairn Islands (PN; see also Pitcairn Islands dollar), Tokelau (TK) OMR 512 3 Omani rial Oman PAB 590 2 Panamanian balboa Panama PEN 604 2 Peruvian sol Peru PGK 598 2 Papua New Guinean kina Papua New Guinea PHP 608 2 Philippine peso[10] Philippines PKR 586 2 Pakistani rupee Pakistan PLN 985 2 Polish złoty Poland PYG 600 0 Paraguayan guaraní Paraguay QAR 634 2 Qatari riyal Qatar RON 946 2 Romanian leu Romania RSD 941 2 Serbian dinar Serbia CNY 156 2 Renminbi[11] China RUB 643 2 Russian ruble Russia RWF 646 0 Rwandan franc Rwanda SAR 682 2 Saudi riyal Saudi Arabia SBD 090 2 Solomon Islands dollar Solomon Islands SCR 690 2 Seychelles rupee Seychelles SDG 938 2 Sudanese pound Sudan SEK 752 2 Swedish krona (plural: kronor) Sweden SGD 702 2 Singapore dollar Singapore SHP 654 2 Saint Helena pound Saint Helena (SH-SH), Ascension Island (SH-AC) SLE 925 2 Sierra Leonean leone (new leone)[12][13][14] Sierra Leone SLL 694 2 Sierra Leonean leone (old leone)[12][13][14][15] Sierra Leone SOS 706 2 Somali shilling Somalia SRD 968 2 Surinamese dollar Suriname SSP 728 2 South Sudanese pound South Sudan STN 930 2[16] São Tomé and Príncipe dobra São Tomé and Príncipe SVC 222 2 Salvadoran colón El Salvador SYP 760 2 Syrian pound Syria SZL 748 2 Swazi lilangeni Eswatini[10] THB 764 2 Thai baht Thailand TJS 972 2 Tajikistani somoni Tajikistan TMT 934 2 Turkmenistan manat Turkmenistan TND 788 3 Tunisian dinar Tunisia TOP 776 2 Tongan paʻanga Tonga TRY 949 2 Turkish lira Turkey TTD 780 2 Trinidad and Tobago dollar Trinidad and Tobago TWD 901 2 New Taiwan dollar Taiwan TZS 834 2 Tanzanian shilling Tanzania UAH 980 2 Ukrainian hryvnia Ukraine UGX 800 0 Ugandan shilling Uganda USD 840 2 United States dollar United States, American Samoa (AS), British Indian Ocean Territory (IO) (also uses GBP), British Virgin Islands (VG), Caribbean Netherlands (BQ – Bonaire, Sint Eustatius and Saba), Ecuador (EC), El Salvador (SV), Guam (GU), Marshall Islands (MH), Federated States of Micronesia (FM), Northern Mariana Islands (MP), Palau (PW), Panama (PA) (as well as Panamanian Balboa), Puerto Rico (PR), Timor-Leste (TL), Turks and Caicos Islands (TC), U.S. Virgin Islands (VI), United States Minor Outlying Islands (UM) USN 997 2 United States dollar (next day) (funds code) United States UYI 940 0 Uruguay Peso en Unidades Indexadas (URUIURUI) (funds code) Uruguay UYU 858 2 Uruguayan peso Uruguay UYW 927 4 Unidad previsional[17] Uruguay UZS 860 2 Uzbekistan sum Uzbekistan VED 926 2 Venezuelan digital bolívar[18] Venezuela VES 928 2 Venezuelan sovereign bolívar[10] Venezuela VND 704 0 Vietnamese đồng Vietnam VUV 548 0 Vanuatu vatu Vanuatu WST 882 2 Samoan tala Samoa XAF 950 0 CFA franc BEAC Cameroon (CM), Central African Republic (CF), Republic of the Congo (CG), Chad (TD), Equatorial Guinea (GQ), Gabon (GA) XAG 961 . Silver (one troy ounce) XAU 959 . Gold (one troy ounce) XBA 955 . European Composite Unit (EURCO) (bond market unit) XBB 956 . European Monetary Unit (E.M.U.-6) (bond market unit) XBC 957 . European Unit of Account 9 (E.U.A.-9) (bond market unit) XBD 958 . European Unit of Account 17 (E.U.A.-17) (bond market unit) XCD 951 2 East Caribbean dollar Anguilla (AI), Antigua and Barbuda (AG), Dominica (DM), Grenada (GD), Montserrat (MS), Saint Kitts and Nevis (KN), Saint Lucia (LC), Saint Vincent and the Grenadines (VC) XDR 960 . Special drawing rights International Monetary Fund XOF 952 0 CFA franc BCEAO Benin (BJ), Burkina Faso (BF), Côte d'Ivoire (CI), Guinea-Bissau (GW), Mali (ML), Niger (NE), Senegal (SN), Togo (TG) XPD 964 . Palladium (one troy ounce) XPF 953 0 CFP franc (franc Pacifique) French territories of the Pacific Ocean: French Polynesia (PF), New Caledonia (NC), Wallis and Futuna (WF) XPT 962 . Platinum (one troy ounce) XSU 994 . SUCRE Unified System for Regional Compensation (SUCRE)[19] XTS 963 . Code reserved for testing XUA 965 . ADB Unit of Account African Development Bank[20] XXX 999 . No currency YER 886 2 Yemeni rial Yemen ZAR 710 2 South African rand Eswatini, Lesotho, Namibia, South Africa ZMW 967 2 Zambian kwacha Zambia ZWL 932 2 Zimbabwean dollar (fifth)[e] Zimbabwe"; RegexOptions options = RegexOptions.Multiline; Regex regex = new Regex(pattern, options); string result = regex.Replace(input, 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 C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx