Regular Expressions 101

Pro

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

"the literal " (34₁₀ / 42₈ / 22₁₆)

\s*a Unicode whitespace character, repeated any number of times

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

Negated Character Class[^\d&\n]+

+matches at least one character outside the set below:

\da Unicode decimal digit

&the literal & (38₁₀ / 46₈ / 26₁₆)

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

Negative Lookahead(?!\S)

\Sany character that is not Unicode whitespace

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

Detailed match information will be displayed here automatically.

25 tokens

\d+"\s*([^\d&\n]+)(?!\S)

the size will be 12" QTR
size is 7" gnh H&M
size is 12" GNH.M gm H&M 
sizes are 12" QTR gm Best&SAP for all ages
 size is 14" qtr 14GM

the size will be 12" QTR
size is 7" gnh H&M
size is 12" GNH.M gm H&M 
sizes are 12" QTR gm Best&SAP for all ages
 size is 14" qtr 14GM