regex101: PCRE (Legacy) Match Workspace

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

Non-Capturing Group(?:"([^"]*)"|([^,""<>]*))?

?repeats the group contents below at most once:

1st Alternative"([^"]*)"

"the literal " (34₁₀ / 42₈ / 22₁₆)

Group 1([^"]*)

Negated Character Class[^"]*

*matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

2nd Alternative([^,""<>]*)

Group 2([^,""<>]*)

Negated Character Class[^,""<>]*

*matches any number of characters outside the set below:

,the literal , (44₁₀ / 54₈ / 2C₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

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

Non-Capturing Group(?:(?:,|<|\s+|^)([^<@\s,]+@[^>@\s,]+)>?)

Non-Capturing Group(?:,|<|\s+|^)

1st Alternative,

,the literal , (44₁₀ / 54₈ / 2C₁₆)

2nd Alternative<

<the literal < (60₁₀ / 74₈ / 3C₁₆)

3rd Alternative\s+

\s+any whitespace character, repeated at least once

4th Alternative^

^start of line

Group 3([^<@\s,]+@[^>@\s,]+)

Negated Character Class[^<@\s,]+

+matches at least one character outside the set below:

<the literal < (60₁₀ / 74₈ / 3C₁₆)

@the literal @ (64₁₀ / 100₈ / 40₁₆)

\sany whitespace character

,the literal , (44₁₀ / 54₈ / 2C₁₆)

@the literal @ (64₁₀ / 100₈ / 40₁₆)

Negated Character Class[^>@\s,]+

+matches at least one character outside the set below:

>the literal > (62₁₀ / 76₈ / 3E₁₆)

@the literal @ (64₁₀ / 100₈ / 40₁₆)

\sany whitespace character

,the literal , (44₁₀ / 54₈ / 2C₁₆)

>?optionally matches the literal > (62₁₀ / 76₈ / 3E₁₆)

\s*any whitespace character, 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

Search reference

Regular Expression

\s*(?:"([^"]*)"|([^,""<>]*))?\s*(?:(?:,|<|\s+|^)([^<@\s,]+@[^>@\s,]+)>?)\s*

New

Test1 <test1@x.com>, Test Two test2@x.y.com,T e s t 3 <test3@z.com>, Test@4 <test4@abc.com>, test5@cde.com,
"Bob Smith" <bob@company.com>, joe@company.com, "John Doe"<john@company.com>, Billy Doe<billy@company.com>

Regular Expressions 101

Regular Expression

Extraction