Regular Expressions 101

1st Alternative[1-578]\d\d

Character Class[1-578]

1-5one character from 1 (49₁₀) to 5 (53₁₀)

7the literal 7 (55₁₀ / 67₈ / 37₁₆)

8the literal 8 (56₁₀ / 70₈ / 38₁₆)

\da digit

2nd Alternative(?:0\d[1-9]|0[1-9]\d)

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

1st Alternative0\d[1-9]

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

\da digit

Character Class[1-9]

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

2nd Alternative0[1-9]\d

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

Character Class[1-9]

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

\da digit

3rd Alternative(?:6\d[0-57-9]|6[0-57-9]\d)

Non-Capturing Group(?:6\d[0-57-9]|6[0-57-9]\d)

1st Alternative6\d[0-57-9]

6the literal 6 (54₁₀ / 66₈ / 36₁₆)

\da digit

Character Class[0-57-9]

0-5one character from 0 (48₁₀) to 5 (53₁₀)

7-9one character from 7 (55₁₀) to 9 (57₁₀)

2nd Alternative6[0-57-9]\d

6the literal 6 (54₁₀ / 66₈ / 36₁₆)

Character Class[0-57-9]

0-5one character from 0 (48₁₀) to 5 (53₁₀)

7-9one character from 7 (55₁₀) to 9 (57₁₀)

\da digit

Global pattern flags

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

[1-578]\d\d|(?:0\d[1-9]|0[1-9]\d)|(?:6\d[0-57-9]|6[0-57-9]\d)

New

I am supposed to exclude the numbers 000, 666, and all numbers between 900-999.

001
000
002
100
600
660
666
606
900
899
999