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]
  • Character class intersection
    [\w&&[^\d]]
  • 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

re = /[A-Za-z\u00C0-\u017F]+/ str = '############################ # World Cup 2014 Brazil Group A | Brazil Croatia Mexico Cameroon Group B | Spain Netherlands Chile Australia Group C | Colombia Greece Côte d\'Ivoire Japan Group D | Uruguay Costa Rica England Italy Group E | Switzerland Ecuador France Honduras Group F | Argentina Bosnia-Herzegovina Iran Nigeria Group G | Germany Portugal Ghana United States Group H | Belgium Algeria Russia South Korea Group A: (1) Thu Jun/12 17:00 Brazil 3-1 Croatia @ Arena de São Paulo, São Paulo (UTC-3) [Neymar 29\' 71\', Oscar 91\', Marcelo 11\' (o.g.)] (2) Fri Jun/13 13:00 Mexico 1-0 Cameroon @ Estádio das Dunas, Natal (UTC-3) [Oribe Peralta: 61\'] (17) Tue Jun/17 16:00 Brazil 0-0 Mexico @ Estádio Castelão, Fortaleza (UTC-3) (18) Wed Jun/18 18:00 Cameroon 0-4 Croatia @ Arena Amazônia, Manaus (UTC-4) [-; Ivica Olić 11\', Ivan Perišić 48\', Mario Mandžukić 61\' 73\'] (33) Mon Jun/23 17:00 Cameroon 1-4 Brazil @ Estádio Nacional Mané Garrincha, Brasília (UTC-3) [Joel Matip 26\'; Neymar 17\' 35\', Fred 49\', Fernandinho 84\'] (34) Mon Jun/23 17:00 Croatia 1-3 Mexico @ Arena Pernambuco, Recife (UTC-3) [Ivan Perišić 87\'; Rafael Márquez 72\', Andres Guardado 75\', Javier Hernández 82\'] Group B: (3) Fri Jun/13 16:00 Spain 1-5 Netherlands @ Arena Fonte Nova, Salvador (UTC-3) [Xabi Alonso 27\' (pen.); Robin Van Persie 44\' 72\', Arjen Robben 53\' 80\', Stefan De Vrij 65\'] (4) Fri Jun/13 18:00 Chile 3-1 Australia @ Arena Pantanal, Cuiabá (UTC-4) [Alexis Sánchez 12\', Jorge Valdívia 14\', Jean Beausejour 92\'; Cahill 35\'] (19) Wed Jun/18 16:00 Spain 0-2 Chile @ Estádio do Maracanã, Rio de Janeiro (UTC-3) [-; Eduardo Vargas 20\', Charles Aránguiz 43\'] (20) Wed Jun/18 13:00 Australia 2-3 Netherlands @ Estádio Beira-Rio, Porto Alegre (UTC-3) [Tim Cahill 21\', Mile Jedinak 54\' (pen.); Arjen Robben 20\', Robin Van Persie 58\', Memphis Depay 68\'] (35) Mon Jun/23 13:00 Australia 0-3 Spain @ Arena da Baixada, Curitiba (UTC-3) [-; David Villa 36\', Fernando Torres 69\', Juan Mata 82\'] (36) Mon Jun/23 13:00 Netherlands 2-0 Chile @ Arena de São Paulo, São Paulo (UTC-3) [Leroy Fer 77\', Memphis Depay 92\'] Group C: (5) Sat Jun/14 13:00 Colombia 3-0 Greece @ Estádio Mineirão, Belo Horizonte (UTC-3) [Pablo Armero 5\', Teofilo Gutiérrez 58\', James Rodríguez 93\'] (6) Sat Jun/14 22:00 Côte d\'Ivoire 2-1 Japan @ Arena Pernambuco, Recife (UTC-3) [Wilfried Bony 64\', Gervinho 66\'; Keisuke Honda 16\'] (21) Thu Jun/19 13:00 Colombia 2-1 Côte d\'Ivoire @ Estádio Nacional Mané Garrincha, Brasília (UTC-3) [James Rodríguez 64\', Juan Quintero 70\'; Gervinho 73\'] (22) Thu Jun/19 19:00 Japan 0-0 Greece @ Estádio das Dunas, Natal (UTC-3) (37) Tue Jun/24 16:00 Japan 1-4 Colombia @ Arena Pantanal, Cuiabá (UTC-4) [Shinji Okazaki 46\'; Juan Cuadrado 17\' (pen.), Jackson Martínez 55\' 82\', James Rodríguez 90\'] (38) Tue Jun/24 17:00 Greece 2-1 Côte d\'Ivoire @ Estádio Castelão, Fortaleza (UTC-3) [Andreas Samaris 42\', Georgios Samaras 93\' (pen.); Wilfried Bony 74\'] Group D: (7) Sat Jun/14 16:00 Uruguay 1-3 Costa Rica @ Estádio Castelão, Fortaleza (UTC-3) [Edinson Cavani 24\' (pen.); Joel Campbell 54\', Oscar Duarte 57\', Marcos Ureña 84\'] (8) Sat Jun/14 18:00 England 1-2 Italy @ Arena Amazônia, Manaus (UTC-4) [Daniel Sturridge 37\'; Claudio Marchisio 35\', Mario Balotelli 50\'] (23) Thu Jun/19 16:00 Uruguay 2-1 England @ Arena de São Paulo, São Paulo (UTC-3) [Luis Suárez 39\' 85\'; Wayne Rooney 75\'] (24) Fri Jun/20 13:00 Italy 0-1 Costa Rica @ Arena Pernambuco, Recife (UTC-3) [-; Bryan Ruiz 44\'] (39) Tue Jun/24 13:00 Italy 0-1 Uruguay @ Estádio das Dunas, Natal (UTC-3) [-; Diego Godín 81\'] (40) Tue Jun/24 13:00 Costa Rica 0-0 England @ Estádio Mineirão, Belo Horizonte (UTC-3) Group E: (9) Sun Jun/15 13:00 Switzerland 2-1 Ecuador @ Estádio Nacional Mané Garrincha, Brasília (UTC-3) [Admir Mehmedi 48\', Haris Seferović 93\'; Enner Valencia 22\'] (10) Sun Jun/15 16:00 France 3-0 Honduras @ Estádio Beira-Rio, Porto Alegre (UTC-3) [Noel Valladares 48\' (o.g.), Karim Benzema 45\' (pen.) 72\'] (25) Fri Jun/20 16:00 Switzerland 2-5 France @ Arena Fonte Nova, Salvador (UTC-3) [Blerim Džemaili 81\', Granit Xhaka 87\'; Olivier Giroud 17\', Blaise Matuidi 18\', Mathieu Valbuena 40\', Karim Benzema 67\', Moussa Sissoko 73\'] (26) Fri Jun/20 19:00 Honduras 1-2 Ecuador @ Arena da Baixada, Curitiba (UTC-3) [Carlo Costly 31\'; Enner Valencia 34\' 65\'] (41) Wed Jun/25 16:00 Honduras 0-3 Switzerland @ Arena Amazônia, Manaus (UTC-4) [-; Xherdan Shaqiri 6\' 31\' 71\'] (42) Wed Jun/25 17:00 Ecuador 0-0 France @ Estádio do Maracanã, Rio de Janeiro (UTC-3) Group F: (11) Sun Jun/15 19:00 Argentina 2-1 Bosnia-Herzegovina @ Estádio do Maracanã, Rio de Janeiro (UTC-3) [Sead Kolašinac 3\' (o.g.), Lionel Messi 65\'; Vedad Ibišević 85\'] (12) Mon Jun/16 16:00 Iran 0-0 Nigeria @ Arena da Baixada, Curitiba (UTC-3) (27) Sat Jun/21 13:00 Argentina 1-0 Iran @ Estádio Mineirão, Belo Horizonte (UTC-3) [Lionel Messi 90\'] (28) Sat Jun/21 18:00 Nigeria 1-0 Bosnia-Herzegovina @ Arena Pantanal, Cuiabá (UTC-4) [Peter Odemwingie 29\'] (43) Wed Jun/25 13:00 Nigeria 2-3 Argentina @ Estádio Beira-Rio, Porto Alegre (UTC-3) [Ahmed Musa 4\' 47\'; Lionel Messi 3\' 46\', Marcos Rojo 50\'] (44) Wed Jun/25 13:00 Bosnia-Herzegovina 3-1 Iran @ Arena Fonte Nova, Salvador (UTC-3) [Edin Džeko 23\', Miralem Pjanić 59\', Avdija Vršajević 83\'; Reza Ghoochannejhad 82\'] Group G: (13) Mon Jun/16 13:00 Germany 4-0 Portugal @ Arena Fonte Nova, Salvador (UTC-3) [Thomas Müller 12\' (pen.) 46\' 78\', Mats Hummels 32\'] (14) Mon Jun/16 19:00 Ghana 1-2 United States @ Estádio das Dunas, Natal (UTC-3) [André Ayew 82\'; Clint Dempsey 1\', John Brooks 86\'] (29) Sat Jun/21 16:00 Germany 2-2 Ghana @ Estádio Castelão, Fortaleza (UTC-3) [Mario Götze 51\', Miroslav Klose 71\'; André Ayew 54\', Asamoah Gyan 63\'] (30) Sun Jun/22 18:00 United States 2-2 Portugal @ Arena Amazônia, Manaus (UTC-4) [Jermaine Jones 64\', Clint Dempsey 81\'; Nani 5\', Varela 95\'] (45) Thu Jun/26 13:00 United States 0-1 Germany @ Arena Pernambuco, Recife (UTC-3) [-; Thomas Müller 55\'] (46) Thu Jun/26 13:00 Portugal 2-1 Ghana @ Estádio Nacional Mané Garrincha, Brasília (UTC-3) [John Boye 31\' (o.g.), Cristiano Ronaldo 80\'; Asamoah Gyan 57\'] Group H: (15) Tue Jun/17 13:00 Belgium 2-1 Algeria @ Estádio Mineirão, Belo Horizonte (UTC-3) [Marouane Fellaini 70\', Dries Mertens 80\'; Sofiane Feghouli 25\' (pen.)] (16) Tue Jun/17 18:00 Russia 1-1 South Korea @ Arena Pantanal, Cuiabá (UTC-4) [Alexander Kerzhakov 74\'; Lee Keunho 68\'] (31) Sun Jun/22 13:00 Belgium 1-0 Russia @ Estádio do Maracanã, Rio de Janeiro (UTC-3) [Divock Origi 88\'] (32) Sun Jun/22 16:00 South Korea 2-4 Algeria @ Estádio Beira-Rio, Porto Alegre (UTC-3) [Son Heung Min 50\', Koo Jacheol 72\'; Islam Slimani 26\', Rafik Halliche 28\', Abdelmoumene Djabou 38\', Yacine Brahimi 62\'] (47) Thu Jun/26 17:00 South Korea 0-1 Belgium @ Arena de São Paulo, São Paulo (UTC-3) [-; Jan Vertonghen 78\'] (48) Thu Jun/26 17:00 Algeria 1-1 Russia @ Arena da Baixada, Curitiba (UTC-3) [Islam Slimani 60\'; Alexander Kokorin 6\'] ###################### # Finals # Round of 16 (49) Sat Jun/28 13:00 Brazil 1-1 (3-2 pen.) Chile @ Estádio Mineirão, Belo Horizonte (UTC-3) # 1A - 2B [David Luiz 18\'; Alexis Sánchez 32\'] (50) Sat Jun/28 17:00 Colombia 2-0 Uruguay @ Estádio do Maracanã, Rio de Janeiro (UTC-3) # 1C - 2D [James Rodríguez 28\' 50\'] (51) Sun Jun/29 13:00 Netherlands 2-1 Mexico @ Estádio Castelão, Fortaleza (UTC-3) # 1B - 2A [Wesley Sneijder 88\' Klaas Jan Huntelaar 90\' (pen); Giovani dos Santos 48\'] (52) Sun Jun/29 17:00 Costa Rica 1-1 (5-3 pen.) Greece @ Arena Pernambuco, Recife (UTC-3) # 1D - 2C [Bryan Ruiz 52\'; Socratis Papastathopoulos 90\'] (53) Mon Jun/30 13:00 France 2-0 Nigeria @ Estádio Nacional Mané Garrincha, Brasília (UTC-3) # 1E - 2F [Paul Pogba 79\', Joseph Yobo 92\' (o.g.)] (54) Mon Jun/30 17:00 Germany 2-1 Algeria @ Estádio Beira-Rio, Porto Alegre (UTC-3) # 1G - 2H [André Schürrle 92\', Mesut Özil 120\'; Abdelmoumene Djabou 121\'] (55) Tue Jul/1 13:00 Argentina 1-0 Switzerland @ Arena de São Paulo, São Paulo # 1F - 2E [Ángel di María 118\'] (56) Tue Jul/1 17:00 Belgium 2-1 United States @ Arena Fonte Nova, Salvador # 1H - 2G [Kevin De Bruyne 93\', Romelu Lukaku 105\'; Julian Green 107\'] # Quarter-finals (57) Fri Jul/4 17:00 Brazil 2-1 Colombia @ Estádio Castelão, Fortaleza # W49 - W50 [Thiago Silva 7\', David Luiz 69\'; James Rodríguez 80\' (pen.)] (58) Fri Jul/4 13:00 France 0-1 Germany @ Estádio do Maracanã, Rio de Janeiro (UTC-3) # W53 - W54 [-; Mats Hummels 13\'] (59) Sat Jul/5 17:00 Netherlands 0-0 (4-3 pen.) Costa Rica @ Arena Fonte Nova, Salvador (UTC-3) # W51 - W52 (60) Sat Jul/5 13:00 Argentina 1-0 Belgium @ Estádio Nacional Mané Garrincha, Brasília (UTC-3) # W55 - W56 [Gonzalo Higuaín 8\'] # Semi-finals (61) Tue Jul/8 17:00 Brazil 1-7 Germany @ Estádio Mineirão, Belo Horizonte (UTC-3) # W57 - W58 [Oscar 90\'; Thomas Müller 11\', Miroslav Klose 23\', Toni Kroos 24\' 26\', Sami Khedira 29\', Andre Schürrle 69\' 79\'] (62) Wed Jul/9 17:00 Netherlands 0-0 (2-4 pen.) Argentina @ Arena de São Paulo, São Paulo (UTC-3) # W59 - W69 (19) Match for third place (63) Sat Jul/12 17:00 Brazil 0-3 Netherlands @ Estádio Nacional Mané Garrincha, Brasília (UTC-3) # L61 - L62 [-; Robin Van Persie 3\' (pen.), Daley Blind 17\', Georginio Wijnaldum 91\'] # Final (64) Sun Jul/13 16:00 Germany 1-0 Argentina @ Estádio do Maracanã, Rio de Janeiro (UTC-3) # W61 - W62 [Mario Götze 113\'] ' # Print the match result str.scan(re) do |match| puts match.to_s end

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