Regular Expressions 101

Pro

\ban ASCII word boundary

Group 1(0x[\da-fA-F]+|[\d]+|0b[01]+)

1st Alternative0x[\da-fA-F]+

0xthe literal text 0x (case sensitive)

Character Class[\da-fA-F]+

+matches at least one character from the set below:

\da digit

a-fone character from a (97₁₀) to f (102₁₀) (case sensitive)

A-Fone character from A (65₁₀) to F (70₁₀) (case sensitive)

2nd Alternative[\d]+

Character Class[\d]+

+matches at least one character from the set below:

\da digit

3rd Alternative0b[01]+

0bthe literal text 0b (case sensitive)

Character Class[01]+

+matches at least one character from the set below:

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

\ban ASCII word boundary

Global pattern flags

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

Detailed match information will be displayed here automatically.

25 tokens

\b(0x[\da-fA-F]+|[\d]+|0b[01]+)\b

New

1234   (decimal)
0x12CD (hex)
0x12cd (hex lowercase)
12CD   (hex without the 0x prefix)
0b0010101011
0bh24j

1234   (decimal)
0x12CD (hex)
0x12cd (hex lowercase)
12CD   (hex without the 0x prefix)
0b0010101011
0bh24j