Regular Expressions 101

Pro

1st Alternative[^n]y

Negated Character Class[^n]

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

ythe literal y (121₁₀ / 171₈ / 79₁₆) (case sensitive)

2nd Alternative[^a]ny

Negated Character Class[^a]

athe literal a (97₁₀ / 141₈ / 61₁₆) (case sensitive)

nythe literal text ny (case sensitive)

3rd Alternativea(?!ny)

athe literal a (97₁₀ / 141₈ / 61₁₆) (case sensitive)

Negative Lookahead(?!ny)

nythe literal text ny (case sensitive)

4th Alternativean(?!y)

anthe literal text an (case sensitive)

Negative Lookahead(?!y)

ythe literal y (121₁₀ / 171₈ / 79₁₆) (case sensitive)

5th Alternative[^a]n(?=y)

Negated Character Class[^a]

athe literal a (97₁₀ / 141₈ / 61₁₆) (case sensitive)

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

Positive Lookahead(?=y)

ythe literal y (121₁₀ / 171₈ / 79₁₆) (case sensitive)

6th Alternativen(?!y)

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

Negative Lookahead(?!y)

ythe literal y (121₁₀ / 171₈ / 79₁₆) (case sensitive)

7th Alternative[^any\d]

Negated Character Class[^any\d]

athe literal a (97₁₀ / 141₈ / 61₁₆) (case sensitive)

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

ythe literal y (121₁₀ / 171₈ / 79₁₆) (case sensitive)

\da digit

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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26 tokens

[^n]y|[^a]ny|a(?!ny)|an(?!y)|[^a]n(?=y)|n(?!y)|[^any\d]

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