regex101: Comprehensive PO Box detection (with generator code in Javascript)

Pro

\ban ASCII word boundary

Group 1(((?:(P(?:ost(?:al)?)?)[ ./\-_]*(O(?:ff(?:ice)?)?)?[ ./\-_]*(b(?:o?x|in)?))|(?:(P(?:ost(?:al)?)?)[ ./\-_]*(O(?:ff(?:ice)?)?)[ ./\-_]*(b(?:o?x|in)?)?)|(?:(?<!(r(?:ural)?[ ./\-_]*r(?:oute)?)[ ./\-_]*((n\.?(?:o|um(?:ber)?)?\.?)?[ ./\-_]*#*[ ./\-_]*(\d+))?[ ./\-_]*)(box|bin)))[ ./\-_]*((n\.?(?:o|um(?:ber)?)?\.?)?[ ./\-_]*#*[ ./\-_]*(\d+)))

Group 2((?:(P(?:ost(?:al)?)?)[ ./\-_]*(O(?:ff(?:ice)?)?)?[ ./\-_]*(b(?:o?x|in)?))|(?:(P(?:ost(?:al)?)?)[ ./\-_]*(O(?:ff(?:ice)?)?)[ ./\-_]*(b(?:o?x|in)?)?)|(?:(?<!(r(?:ural)?[ ./\-_]*r(?:oute)?)[ ./\-_]*((n\.?(?:o|um(?:ber)?)?\.?)?[ ./\-_]*#*[ ./\-_]*(\d+))?[ ./\-_]*)(box|bin)))

1st Alternative(?:(P(?:ost(?:al)?)?)[ ./\-_]*(O(?:ff(?:ice)?)?)?[ ./\-_]*(b(?:o?x|in)?))

Non-Capturing Group(?:(P(?:ost(?:al)?)?)[ ./\-_]*(O(?:ff(?:ice)?)?)?[ ./\-_]*(b(?:o?x|in)?))

Group 3(P(?:ost(?:al)?)?)

Pthe literal P (80₁₀ / 120₈ / 50₁₆) (case insensitive)

Non-Capturing Group(?:ost(?:al)?)?

?repeats the group contents below at most once:

ostthe literal text ost (case insensitive)

Non-Capturing Group(?:al)?

?repeats the group contents below at most once:

althe literal text al (case insensitive)

Character Class[ ./\-_]*

*matches any number of characters from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

/the literal / (47₁₀ / 57₈ / 2F₁₆)

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

Group 4(O(?:ff(?:ice)?)?)?

?repeats the group contents below at most once:

Othe literal O (79₁₀ / 117₈ / 4F₁₆) (case insensitive)

Non-Capturing Group(?:ff(?:ice)?)?

?repeats the group contents below at most once:

ffthe literal text ff (case insensitive)

Non-Capturing Group(?:ice)?

?repeats the group contents below at most once:

icethe literal text ice (case insensitive)

Character Class[ ./\-_]*

*matches any number of characters from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

/the literal / (47₁₀ / 57₈ / 2F₁₆)

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

Group 5(b(?:o?x|in)?)

bthe literal b (98₁₀ / 142₈ / 62₁₆) (case insensitive)

Non-Capturing Group(?:o?x|in)?

?repeats the group contents below at most once:

1st Alternativeo?x

o?optionally matches the literal o (111₁₀ / 157₈ / 6F₁₆) (case insensitive)

xthe literal x (120₁₀ / 170₈ / 78₁₆) (case insensitive)

2nd Alternativein

inthe literal text in (case insensitive)

2nd Alternative(?:(P(?:ost(?:al)?)?)[ ./\-_]*(O(?:ff(?:ice)?)?)[ ./\-_]*(b(?:o?x|in)?)?)

Non-Capturing Group(?:(P(?:ost(?:al)?)?)[ ./\-_]*(O(?:ff(?:ice)?)?)[ ./\-_]*(b(?:o?x|in)?)?)

Group 6(P(?:ost(?:al)?)?)

Pthe literal P (80₁₀ / 120₈ / 50₁₆) (case insensitive)

Non-Capturing Group(?:ost(?:al)?)?

?repeats the group contents below at most once:

ostthe literal text ost (case insensitive)

Non-Capturing Group(?:al)?

?repeats the group contents below at most once:

althe literal text al (case insensitive)

Character Class[ ./\-_]*

*matches any number of characters from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

/the literal / (47₁₀ / 57₈ / 2F₁₆)

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

Group 7(O(?:ff(?:ice)?)?)

Othe literal O (79₁₀ / 117₈ / 4F₁₆) (case insensitive)

Non-Capturing Group(?:ff(?:ice)?)?

?repeats the group contents below at most once:

ffthe literal text ff (case insensitive)

Non-Capturing Group(?:ice)?

?repeats the group contents below at most once:

icethe literal text ice (case insensitive)

Character Class[ ./\-_]*

Group 8(b(?:o?x|in)?)?

3rd Alternative(?:(?<!(r(?:ural)?[ ./\-_]*r(?:oute)?)[ ./\-_]*((n\.?(?:o|um(?:ber)?)?\.?)?[ ./\-_]*#*[ ./\-_]*(\d+))?[ ./\-_]*)(box|bin))

Character Class[ ./\-_]*

Group 14((n\.?(?:o|um(?:ber)?)?\.?)?[ ./\-_]*#*[ ./\-_]*(\d+))

\ban ASCII word boundary

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

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

26 tokens

Regular Expression

\b(((?:(P(?:ost(?:al)?)?)[ ./\-_]*(O(?:ff(?:ice)?)?)?[ ./\-_]*(b(?:o?x|in)?))|(?:(P(?:ost(?:al)?)?)[ ./\-_]*(O(?:ff(?:ice)?)?)[ ./\-_]*(b(?:o?x|in)?)?)|(?:(?<!(r(?:ural)?[ ./\-_]*r(?:oute)?)[ ./\-_]*((n\.?(?:o|um(?:ber)?)?\.?)?[ ./\-_]*#*[ ./\-_]*(\d+))?[ ./\-_]*)(box|bin)))[ ./\-_]*((n\.?(?:o|um(?:ber)?)?\.?)?[ ./\-_]*#*[ ./\-_]*(\d+)))\b

Unit Tests

There are no unit tests, click to add some.