Regular Expressions 101

^start of line

value:the literal text value: (case sensitive)

\s?optionally matches a Unicode whitespace character

Group 1([^-\n]+)

Negated Character Class[^-\n]+

+matches at least one character outside the set below:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

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

Non-Capturing Group(?:\s-.*?-\s)?

?repeats the group contents below at most once:

\sa Unicode whitespace character

-the literal - (45₁₀ / 55₈ / 2D₁₆)

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

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\sa Unicode whitespace character

Group 2([^-\n]*)

Negated Character Class[^-\n]*

*matches any number of characters outside the set below:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

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

Non-Capturing Group(?:\s|$)

1st Alternative\s

\sa Unicode whitespace character

2nd Alternative$

$end of line

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

Regular Expression

^value:\s?([^-\n]+)(?:\s-.*?-\s)?([^-\n]*)(?:\s|$)

New

value: 1.25MG - OM - PO/TUBE - ashaf
value:2.5 MG - OM - PO/TUBE -test
value: 18 UNITS(S)
value: 850 MG - TDS AFTER FOOD - SC (SUBCUTANE...
value: 75 MG - OM - PO/TUBE

Extraction

value: 1.25MG - OM - PO/TUBE - ashaf
value:2.5 MG - OM - PO/TUBE -test
value: 18 UNITS(S)
value: 850 MG - TDS AFTER FOOD - SC (SUBCUTANE...
value: 75 MG - OM - PO/TUBE