Regular Expressions 101

^start of line

Group code(?<code>\+?\d{1,3})

\+?optionally matches the literal + (43₁₀ / 53₈ / 2B₁₆)

\d{1,3}a Unicode decimal digit, repeated between 1 and 3 times

Character Class[-\s]{0,}

{0,}matches any number of characters from the set below:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\sa Unicode whitespace character

Group number(?<number>$?\d{3}$?[-\s]{0,}\d{3}[-\s]{0,}\d{2}[-\s]{0,}\d{2})

\(?optionally matches the literal ( (40₁₀ / 50₈ / 28₁₆)

\d{3}a Unicode decimal digit, repeated exactly 3 times

\)?optionally matches the literal ) (41₁₀ / 51₈ / 29₁₆)

Character Class[-\s]{0,}

{0,}matches any number of characters from the set below:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\sa Unicode whitespace character

\d{3}a Unicode decimal digit, repeated exactly 3 times

Character Class[-\s]{0,}

{0,}matches any number of characters from the set below:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\sa Unicode whitespace character

\d{2}a Unicode decimal digit, repeated exactly 2 times

Character Class[-\s]{0,}

{0,}matches any number of characters from the set below:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\sa Unicode whitespace character

\d{2}a Unicode decimal digit, repeated exactly 2 times

$end of line

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

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Search reference

Regular Expression

^(?<code>\+?\d{1,3})[-\s]{0,}(?<number>\(?\d{3}\)?[-\s]{0,}\d{3}[-\s]{0,}\d{2}[-\s]{0,}\d{2})$

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