Negative Lookbehind(?<!\S) \Sany character that is not Unicode whitespace
\d+a Unicode decimal digit, repeated at least once
Non-Capturing Group(?:,\d+)? ?repeats the group contents below at most once:
,the literal , (4410 / 548 / 2C16)
\d+a Unicode decimal digit, repeated at least once
*the literal (3210 / 408 / 2016) , repeated any number of times
Non-Capturing Group(?:(?:in(?:ch)?|")(?: +W)?)? ?repeats the group contents below at most once:
Non-Capturing Group(?:in(?:ch)?|") inthe literal text in (case sensitive) Non-Capturing Group(?:ch)? ?repeats the group contents below at most once:
chthe literal text ch (case sensitive) "the literal " (3410 / 428 / 2216)
Non-Capturing Group(?: +W)? ?repeats the group contents below at most once:
+the literal (3210 / 408 / 2016) , repeated at least once
Wthe literal W (8710 / 1278 / 5716) (case sensitive)
?optionally matches the literal (3210 / 408 / 2016)
Non-Capturing Group(?:x|by) xthe literal x (12010 / 1708 / 7816) (case sensitive)
bythe literal text by (case sensitive) ?optionally matches the literal (3210 / 408 / 2016)
\d+a Unicode decimal digit, repeated at least once
Non-Capturing Group(?:,\d+)? ?repeats the group contents below at most once:
,the literal , (4410 / 548 / 2C16)
\d+a Unicode decimal digit, repeated at least once
Non-Capturing Group(?: ?x ?\d+(?:,\d+)?)* *repeats the group contents below any number of times:
?optionally matches the literal (3210 / 408 / 2016)
xthe literal x (12010 / 1708 / 7816) (case sensitive)
?optionally matches the literal (3210 / 408 / 2016)
\d+a Unicode decimal digit, repeated at least once
Non-Capturing Group(?:,\d+)? ?repeats the group contents below at most once:
,the literal , (4410 / 548 / 2C16)
\d+a Unicode decimal digit, repeated at least once
*the literal (3210 / 408 / 2016) , repeated any number of times
Non-Capturing Group(?:(?:in(?:ch)?|")(?: +L)?)? ?repeats the group contents below at most once:
Non-Capturing Group(?:in(?:ch)?|") inthe literal text in (case sensitive) Non-Capturing Group(?:ch)? ?repeats the group contents below at most once:
chthe literal text ch (case sensitive) "the literal " (3410 / 428 / 2216)
Non-Capturing Group(?: +L)? ?repeats the group contents below at most once:
+the literal (3210 / 408 / 2016) , repeated at least once
Lthe literal L (7610 / 1148 / 4C16) (case sensitive)
Non-Capturing Group(?: ?x ?(\d+(?:,\d+)?))* *repeats the group contents below any number of times:
?optionally matches the literal (3210 / 408 / 2016)
xthe literal x (12010 / 1708 / 7816) (case sensitive)
?optionally matches the literal (3210 / 408 / 2016)
\d+a Unicode decimal digit, repeated at least once
Non-Capturing Group(?:,\d+)? ?repeats the group contents below at most once:
,the literal , (4410 / 548 / 2C16)
\d+a Unicode decimal digit, repeated at least once
*the literal (3210 / 408 / 2016) , repeated any number of times
Non-Capturing Group(?:(?:in(?:ch)?|")(?: +H)?)? 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