Regular Expressions 101

Explanation

Pro

Size: the literal text Size: (case sensitive)

Non-Capturing Group(?:Age_Youth|[a-zA-Z0-9]+)

1st AlternativeAge_Youth

Age_Youththe literal text Age_Youth (case sensitive)

2nd Alternative[a-zA-Z0-9]+

Character Class[a-zA-Z0-9]+

+matches at least one character from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

0-9one character from 0 (48₁₀) to 9 (57₁₀)

Non-Capturing Group(?:[ \t]*(?:or|[-/?])[ \t]*[a-zA-Z0-9]+)+

+repeats the group contents below at least once:

Character Class[ \t]*

*matches any number of characters from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

\ta tab character (ASCII 9)

Non-Capturing Group(?:or|[-/?])

1st Alternativeor

orthe literal text or (case sensitive)

2nd Alternative[-/?]

Character Class[-/?]

-the literal - (45₁₀ / 55₈ / 2D₁₆)

/the literal / (47₁₀ / 57₈ / 2F₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

Character Class[ \t]*

*matches any number of characters from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

\ta tab character (ASCII 9)

Character Class[a-zA-Z0-9]+

+matches at least one character from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

0-9one character from 0 (48₁₀) to 9 (57₁₀)

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

No unit tests

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25 tokens

Size: (?:Age_Youth|[a-zA-Z0-9]+)(?:[ \t]*(?:or|[-/?])[ \t]*[a-zA-Z0-9]+)+

There are no unit tests.