Regular Expressions 101

Negative Lookbehind(?<!\.)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group 1(\b(?:\d{2,3}|[2-9])(?:\.\d+)?\b|\b1\.(?:1\d?|0[1-9])\b)

1st Alternative\b(?:\d{2,3}|[2-9])(?:\.\d+)?\b

\ban ASCII word boundary

Non-Capturing Group(?:\d{2,3}|[2-9])

1st Alternative\d{2,3}

\d{2,3}a digit, repeated between 2 and 3 times

2nd Alternative[2-9]

Character Class[2-9]

2-9one character from 2 (50₁₀) to 9 (57₁₀)

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

?repeats the group contents below at most once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d+a digit, repeated at least once

\ban ASCII word boundary

2nd Alternative\b1\.(?:1\d?|0[1-9])\b

\ban ASCII word boundary

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

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

1st Alternative1\d?

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

\d?optionally matches a digit

2nd Alternative0[1-9]

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

Character Class[1-9]

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

\ban ASCII word boundary

Negative Lookahead(?!%|\.)

1st Alternative%

%the literal % (37₁₀ / 45₈ / 25₁₆)

2nd Alternative\.

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

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

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Search reference

Regular Expression

(?<!\.)(\b(?:\d{2,3}|[2-9])(?:\.\d+)?\b|\b1\.(?:1\d?|0[1-9])\b)(?!%|\.)

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