\ban ASCII word boundary
xthe literal x (12010 / 1708 / 7816) (case sensitive)
\.the literal . (4610 / 568 / 2E16)
setthe literal text set (case sensitive) \(the literal ( (4010 / 508 / 2816)
Non-Capturing Group(?:\s*(?:,\s*)?(?<o>[-+]?\d*\.?\d+(?:[Ee][-+]?\d+)?|\w+(?<a>\((?:[^()]++|(?&a))*\))*|'[^'\\]*(?:\\.[^'\\]*)*'|"[^"\\]*(?:\\.[^"\\]*)*"))* *repeats the group contents below any number of times:
\s*any whitespace character, repeated any number of times
Non-Capturing Group(?:,\s*)? ?repeats the group contents below at most once:
,the literal , (4410 / 548 / 2C16)
\s*any whitespace character, repeated any number of times
Group o(?<o>[-+]?\d*\.?\d+(?:[Ee][-+]?\d+)?|\w+(?<a>\((?:[^()]++|(?&a))*\))*|'[^'\\]*(?:\\.[^'\\]*)*'|"[^"\\]*(?:\\.[^"\\]*)*") 1st Alternative[-+]?\d*\.?\d+(?:[Ee][-+]?\d+)? ?matches at most one character from the set below:
-the literal - (4510 / 558 / 2D16)
+the literal + (4310 / 538 / 2B16)
\d*a digit, repeated any number of times
\.?optionally matches the literal . (4610 / 568 / 2E16)
\d+a digit, repeated at least once
Non-Capturing Group(?:[Ee][-+]?\d+)? ?repeats the group contents below at most once:
Ethe literal E (6910 / 1058 / 4516) (case sensitive)
ethe literal e (10110 / 1458 / 6516) (case sensitive)
?matches at most one character from the set below:
-the literal - (4510 / 558 / 2D16)
+the literal + (4310 / 538 / 2B16)
\d+a digit, repeated at least once
2nd Alternative\w+(?<a>\((?:[^()]++|(?&a))*\))* \w+any word character, repeated at least once
Group a(?<a>\((?:[^()]++|(?&a))*\))* *repeats the group contents below any number of times:
\(the literal ( (4010 / 508 / 2816)
Non-Capturing Group(?:[^()]++|(?&a))* *repeats the group contents below any number of times:
Negated Character Class[^()]++ ++matches at least one character outside the set below:
(the literal ( (4010 / 508 / 2816)
)the literal ) (4110 / 518 / 2916)
(?&a)calls group a as a subroutine
\)the literal ) (4110 / 518 / 2916)
3rd Alternative'[^'\\]*(?:\\.[^'\\]*)*' 'the literal ' (3910 / 478 / 2716)
Negated Character Class[^'\\]* *matches any number of characters outside the set below:
'the literal ' (3910 / 478 / 2716)
\\the literal \ (9210 / 1348 / 5C16)
Non-Capturing Group(?:\\.[^'\\]*)* *repeats the group contents below any number of times:
\\the literal \ (9210 / 1348 / 5C16)
.any character (except for line terminators)
Negated Character Class[^'\\]* *matches any number of characters outside the set below:
'the literal ' (3910 / 478 / 2716)
\\the literal \ (9210 / 1348 / 5C16)
'the literal ' (3910 / 478 / 2716)
4th Alternative"[^"\\]*(?:\\.[^"\\]*)*" "the literal " (3410 / 428 / 2216)
Negated Character Class[^"\\]* *matches any number of characters outside the set below:
"the literal " (3410 / 428 / 2216)
\\the literal \ (9210 / 1348 / 5C16)
Non-Capturing Group(?:\\.[^"\\]*)* *repeats the group contents below any number of times:
\\the literal \ (9210 / 1348 / 5C16)
.any character (except for line terminators)
Negated Character Class[^"\\]* *matches any number of characters outside the set below:
"the literal " (3410 / 428 / 2216)
\\the literal \ (9210 / 1348 / 5C16)
"the literal " (3410 / 428 / 2216)
\s*any whitespace character, repeated any number of times
\)the literal ) (4110 / 518 / 2916)
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