Regular Expressions 101

Pro

^start of line

\p{L}+any Unicode letter, repeated at least once

Non-Capturing Group(?:[’'-]\p{L}+)*

*repeats the group contents below any number of times:

Character Class[’'-]

’the literal ’ (8217₁₀ / 20031₈ / 2019₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\p{L}+any Unicode letter, repeated at least once

Non-Capturing Group(?: +\p{L}+(?:[’'-]\p{L}+)*)*

*repeats the group contents below any number of times:

+the literal (32₁₀ / 40₈ / 20₁₆) , repeated at least once

\p{L}+any Unicode letter, repeated at least once

Non-Capturing Group(?:[’'-]\p{L}+)*

*repeats the group contents below any number of times:

Character Class[’'-]

’the literal ’ (8217₁₀ / 20031₈ / 2019₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\p{L}+any Unicode letter, repeated at least once

$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

u modifier: unicode. Treats the pattern and subject as UTF-16

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25 tokens

^\p{L}+(?:[’'-]\p{L}+)*(?: +\p{L}+(?:[’'-]\p{L}+)*)*$

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