Regular Expressions 101

Pro

^start of line

Group 1([^\d\n]+)

Negated Character Class[^\d\n]+

+matches at least one character outside the set below:

\da Unicode decimal digit

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

Group 2(\d[\d,.-]* \d+)

\da Unicode decimal digit

Character Class[\d,.-]*

*matches any number of characters from the set below:

\da Unicode decimal digit

,the literal , (44₁₀ / 54₈ / 2C₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

the literal (32₁₀ / 40₈ / 20₁₆)

\d+a Unicode decimal digit, repeated at least once

the literal (32₁₀ / 40₈ / 20₁₆)

\da Unicode decimal digit

Character Class[\d,.]*

*matches any number of characters from the set below:

\da Unicode decimal digit

,the literal , (44₁₀ / 54₈ / 2C₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d{2}a Unicode decimal digit, repeated exactly 2 times

Group 3((?:\n(?!.*\b\d[\d,.]*\.\d{2}$).*)*)

Non-Capturing Group(?:\n(?!.*\b\d[\d,.]*\.\d{2}$).*)*

*repeats the group contents below any number of times:

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

Negative Lookahead(?!.*\b\d[\d,.]*\.\d{2}$)

.*any Unicode character (except for line terminators), repeated any number of times

\ba Unicode word boundary

\da Unicode decimal digit

Character Class[\d,.]*

*matches any number of characters from the set below:

\da Unicode decimal digit

,the literal , (44₁₀ / 54₈ / 2C₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d{2}a Unicode decimal digit, repeated exactly 2 times

$end of line

.*any Unicode character (except for line terminators), repeated any number of times

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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25 tokens

Regular Expression

^([^\d\n]+)(\d[\d,.-]* \d+) \d[\d,.]*\.\d{2}((?:\n(?!.*\b\d[\d,.]*\.\d{2}$).*)*)

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