Regular Expressions 101

Explanation

Pro

Negative Lookbehind(?<!\S)

\Sany non-whitespace character

Non-Capturing Group(?:[1-9]\d\d?,\d{3}|(?:[1-9]\d?|1[0-4]\d),\d{3},\d{3}|150,000,000)

1st Alternative[1-9]\d\d?,\d{3}

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

\da digit

\d?optionally matches a digit

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d{3}a digit, repeated exactly 3 times

2nd Alternative(?:[1-9]\d?|1[0-4]\d),\d{3},\d{3}

Non-Capturing Group(?:[1-9]\d?|1[0-4]\d)

1st Alternative[1-9]\d?

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

\d?optionally matches a digit

2nd Alternative1[0-4]\d

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

Character Class[0-4]

0-4one character from 0 (48₁₀) to 4 (52₁₀)

\da digit

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d{3}a digit, repeated exactly 3 times

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d{3}a digit, repeated exactly 3 times

3rd Alternative150,000,000

150,000,000the literal text 150,000,000

Negative Lookahead(?!\S)

\Sany non-whitespace character

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

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

(?<!\S)(?:[1-9]\d\d?,\d{3}|(?:[1-9]\d?|1[0-4]\d),\d{3},\d{3}|150,000,000)(?!\S)

New

10,000
10,001
10,100
100,000
999,999
149,999,999
150,000,000
55,555
99,999
73,129
834,101
1,333,333
149,000,000
20,111,000
99,001,000
10,001,000
10,999,999
2,999,999
950,000
999,999
910,000
949,999
950,000

949,999,999
1,999,999,999
100,949,999,999
1
1,0
9,000
9,999
5,555
250,000,000
9,999
100000
150,000,001
150,000,100
150,001,000
150,100,000
151,000,000
9,150,000,000
160,000,000
000,000,000

Extraction

10,000
10,001
10,100
100,000
999,999
149,999,999
150,000,000
55,555
99,999
73,129
834,101
1,333,333
149,000,000
20,111,000
99,001,000
10,001,000
10,999,999
2,999,999
950,000
999,999
910,000
949,999
950,000

949,999,999
1,999,999,999
100,949,999,999
1
1,0
9,000
9,999
5,555
250,000,000
9,999
100000
150,000,001
150,000,100
150,001,000
150,100,000
151,000,000
9,150,000,000
160,000,000
000,000,000