To get video id from different formats

When encountering more than 1 pmid, make sure to return the first one

Regex supporting all formats of ISO 8601 dates (with timezone and microseconds) that are compatible with PHP DateTime constructor and strtotime.

^ # start-of-string (?=.*[0-9]) # a digit must occur at least once (?=.*[a-z]) # a lower case letter must occur at least once (?=.*[A-Z]) # an upper case letter must occur at least once (?=.*[@#$%^&+=]) # a special character must occur at least once (?=\S+$) ...

In (?!www.youtube.com\/|youtube.com\/|player.vimeo.com\/) u can add good sites for iframes: www.youtube.com/ player.vimeo.com/

http://www.rexegg.com/regex-humor.html#meaning-of-life

\TYPECODE #1\\[MARF#\].?\[EREF#\].?\[IREF#\].?\[RTRN#]\s.?\[DR #1\]

SHould pickup a cusip followed by a price in decimals or ticks.

parses the status message (response to '?') from a GRBL controller according to https://github.com/grbl/grbl/blob/master/grbl/report.c#L421 works with every possible status report mask (grbl 0.9i)

matches correct format for time

Names with only one spacing allowed in between words.

This regular expression validates if given string is formatted in Base64, additional it accepts new lines, since payload can have new lines in it.

x+x^10+10x^(-3) get all valuem one by one