Regular Expressions 101

Pro

\ban ASCII word boundary

Group 1(\d+(?:\.\d+)?)

\d+a digit, repeated at least once

Non-Capturing Group(?:\.\d+)?

?repeats the group contents below at most once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d+a digit, repeated at least once

Negated Character Class[^\dxX\n]*

*matches any number of characters outside the set below:

\da digit

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

Xthe literal X (88₁₀ / 130₈ / 58₁₆) (case sensitive)

\na line-feed (newline) character (ASCII 10)

Character Class[xX]

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

Xthe literal X (88₁₀ / 130₈ / 58₁₆) (case sensitive)

Negated Character Class[^\dxX\n]*

*matches any number of characters outside the set below:

\da digit

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

Xthe literal X (88₁₀ / 130₈ / 58₁₆) (case sensitive)

\na line-feed (newline) character (ASCII 10)

Group 2(\d+(?:\.\d+)?)

\d+a digit, repeated at least once

Non-Capturing Group(?:\.\d+)?

?repeats the group contents below at most once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d+a digit, repeated at least once

Global pattern flags

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

g modifier: global. Finds all matches instead of stopping after the first

Detailed match information will be displayed here automatically.

25 tokens

\b(\d+(?:\.\d+)?)[^\dxX\n]*[xX][^\dxX\n]*(\d+(?:\.\d+)?)

40cm x 100cm

2.3 x 8.6

height: 100cm x width: 200.2cm

25K Gold

60 diam

50 diam

68X55 CM

40cm x 100cm

2.3 x 8.6

height: 100cm x width: 200.2cm

25K Gold

60 diam

50 diam

68X55 CM