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(\n|\s)(?:(?:\+?(\d{1}|\d{2}|\d{3})\s*)\s*(?:\(\s*(\d{1}|\d{2}|\d{3})\s*\)|(\d{1,3}))\s*\-?(?:\(\s*(\d{1,3})\s*\)|(\d{3}))\s*\-?(?:\d{2}\s*\-?\d{2}))

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gm

1st Capturing Group

(\n|\s)

1st Alternative

\n

\n matches a line-feed (newline) character (ASCII 10)

2nd Alternative

\s

\s matches any whitespace character (equivalent to [\r\n\t\f\v \u00a0\u1680\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff])

Non-capturing group

(?:(?:\+?(\d{1}|\d{2}|\d{3})\s*)\s*(?:\(\s*(\d{1}|\d{2}|\d{3})\s*\)|(\d{1,3}))\s*\-?(?:\(\s*(\d{1,3})\s*\)|(\d{3}))\s*\-?(?:\d{2}\s*\-?\d{2}))

Non-capturing group

(?:\+?(\d{1}|\d{2}|\d{3})\s*)

\+

matches the character + with index 43? matches the previous token between zero and one times, as many times as possible, giving back as needed (greedy)

2nd Capturing Group

(\d{1}|\d{2}|\d{3})

1st Alternative

\d{1}

\d

matches a digit (equivalent to [0-9]){1} matches the previous token exactly one time (meaningless quantifier)

2nd Alternative

\d{2}

\d

matches a digit (equivalent to [0-9]){2} matches the previous token exactly 2 times

3rd Alternative

\d{3}

\d

matches a digit (equivalent to [0-9]){3} matches the previous token exactly 3 times

\s

matches any whitespace character (equivalent to [\r\n\t\f\v \u00a0\u1680\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff])* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)

\s

matches any whitespace character (equivalent to [\r\n\t\f\v \u00a0\u1680\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff])* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)

Non-capturing group

(?:\(\s*(\d{1}|\d{2}|\d{3})\s*\)|(\d{1,3}))

1st Alternative

\(\s*(\d{1}|\d{2}|\d{3})\s*\)

\( matches the character ( with index 40_{10} (28_{16} or 50_{8}) literally (case sensitive)

\s

matches any whitespace character (equivalent to [\r\n\t\f\v \u00a0\u1680\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff])* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)

3rd Capturing Group

(\d{1}|\d{2}|\d{3})

1st Alternative

\d{1}

\d

matches a digit (equivalent to [0-9]){1} matches the previous token exactly one time (meaningless quantifier)

2nd Alternative

\d{2}

\d

matches a digit (equivalent to [0-9]){2} matches the previous token exactly 2 times

3rd Alternative

\d{3}

\d

matches a digit (equivalent to [0-9]){3} matches the previous token exactly 3 times

\s

matches any whitespace character (equivalent to [\r\n\t\f\v \u00a0\u1680\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff])\) matches the character ) with index 41_{10} (29_{16} or 51_{8}) literally (case sensitive)

2nd Alternative

(\d{1,3})

4th Capturing Group

(\d{1,3})

\d

matches a digit (equivalent to [0-9]){1,3} matches the previous token between 1 and 3 times, as many times as possible, giving back as needed (greedy)

\s

matches any whitespace character (equivalent to [\r\n\t\f\v \u00a0\u1680\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff])\-

matches the character - with index 45? matches the previous token between zero and one times, as many times as possible, giving back as needed (greedy)

Non-capturing group

(?:\(\s*(\d{1,3})\s*\)|(\d{3}))

1st Alternative

\(\s*(\d{1,3})\s*\)

\( matches the character ( with index 40_{10} (28_{16} or 50_{8}) literally (case sensitive)

\s

matches any whitespace character (equivalent to [\r\n\t\f\v \u00a0\u1680\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff])5th Capturing Group

(\d{1,3})

\d

matches a digit (equivalent to [0-9]){1,3} matches the previous token between 1 and 3 times, as many times as possible, giving back as needed (greedy)

\s

matches any whitespace character (equivalent to [\r\n\t\f\v \u00a0\u1680\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff])\) matches the character ) with index 41_{10} (29_{16} or 51_{8}) literally (case sensitive)

2nd Alternative

(\d{3})

6th Capturing Group

(\d{3})

\d

matches a digit (equivalent to [0-9]){3} matches the previous token exactly 3 times

\s

matches any whitespace character (equivalent to [\r\n\t\f\v \u00a0\u1680\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff])\-

matches the character - with index 45? matches the previous token between zero and one times, as many times as possible, giving back as needed (greedy)

Non-capturing group

(?:\d{2}\s*\-?\d{2})

\d

matches a digit (equivalent to [0-9]){2} matches the previous token exactly 2 times

\s

matches any whitespace character (equivalent to [\r\n\t\f\v \u00a0\u1680\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff])\-

matches the character - with index 45\d

matches a digit (equivalent to [0-9])Global pattern flags

g modifier: **g**lobal. All matches (don't return after first match)

m modifier: **m**ulti line. Causes ^ and $ to match the begin/end of each line (not only begin/end of string)

Your regular expression does not match the subject string.

No Match

/

/

gm

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