Regular Expressions 101

Positive Lookahead(?=\w)

\wa Unicode word character

Group 1(\w+(?=$|\s))?

?repeats the group contents below at most once:

\w+a Unicode word character, repeated at least once

Positive Lookahead(?=$|\s)

1st Alternative$

$end of string, or before its final line terminator

2nd Alternative\s

\sa Unicode whitespace character

*the literal (32₁₀ / 40₈ / 20₁₆) , repeated any number of times

\ba Unicode word boundary

Group 2(\d+\.\d+)?

?repeats the group contents below at most once:

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

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

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

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

(?=\w)(\w+(?=$|\s))? *\b(\d+\.\d+)?

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