Regular Expressions 101

Explanation

Pro

\d+a digit, repeated at least once

Character Class[,.]

,the literal , (44₁₀ / 54₈ / 2C₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d+a digit, repeated at least once

Positive Lookahead(?=[\s\S]*key)

Character Class[\s\S]*

*matches any number of characters from the set below:

\sany whitespace character

\Sany non-whitespace character

keythe literal text key (case sensitive)

Global pattern flags

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

Detailed match information will be displayed here automatically.

26 tokens

\d+[,.]\d+(?=[\s\S]*key)

New

blabl

texta 1,40
textb 3.50
textc 6,90

blabal 2 3
ddd 3 jj d 

key textd textf
2,30 4,70 5,90

blabl

texta 1,40
textb 3.50
textc 6,90

blabal 2 3
ddd 3 jj d 

key textd textf
2,30 4,70 5,90