Regular Expressions 101

\d+a digit, repeated at least once

Character Class[thndst]+

+matches at least one character from the set below:

tthe literal t (116₁₀ / 164₈ / 74₁₆) (case sensitive)

hthe literal h (104₁₀ / 150₈ / 68₁₆) (case sensitive)

nthe literal n (110₁₀ / 156₈ / 6E₁₆) (case sensitive)

dthe literal d (100₁₀ / 144₈ / 64₁₆) (case sensitive)

sthe literal s (115₁₀ / 163₈ / 73₁₆) (case sensitive)

\s+any whitespace character, repeated at least once

Positive Lookahead(?=district)

districtthe literal text district (case sensitive)

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

\d+[thndst]+\s+(?=district)

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