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

r"
"
g

Test String

Code Generator

Language

Generated Code

package main import ( "regexp" "fmt" ) func main() { var re = regexp.MustCompile(` · ?(.*)`) var str = ` ТРК CITY MALL Zaporizhzhia, Zaporizhia Oblast · 050 463 9113 Shopping Center Ukraine # it's being captured as well تطوان، المغرب · +212 669-599239 طنجة، المغرب · +212 5393-01148 طنجة، المغرب · +212 679-897627 Coffeyville, KS · (620) 251-3330 Independence, KS · (620) 331-7177 Bartlesville, OK · (918) 333-6060 Carrefour Guéret Centre Commercial Auchan Domérat Saint-Victor · 04 70 28 00 16 ТРК Сіті Мол Запоріжжя, Запорізька область · 050 463 9113 Дніпро, Дніпропетровська область · 050 463 9114 Mühlhausen/Thüringen · 03601 815390 Nordhausen · 03631 600294 Laucha · 03622 900140 CinecittàDue Roma RM · 06 8746 5219 Roma RM · 06 8746 2321 長野県上田市 · 0268-28-4551 長野県上田市 · 0268-42-1482 長野県松本市 · 0263-36-5258 Langham Place Mong Kok · 2393 4246 Mong Kok · 2396 2415 Pärnu, Pärnu maakond · 522 6113 Rocca Al Mare Parking Tallinn · 5561 7011 Silkeborg · 86 81 41 11 Viborg · 22 40 77 75 Viborg · 86 69 68 95 Pardubice · 724 372 891 Pardubice · 725 878 984 Osice · 725 752 422 ` for i, match := range re.FindAllString(str, -1) { fmt.Println(match, "found at index", i) } }

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 Golang, please visit: https://golang.org/pkg/regexp/