(?=.*[A-Z]) # must contain 1 uppercase letter (?=.*[0-9]) # must contain 1 digit (?!.\n) # must not contain a newline character (?!.*\s) # must not contain any whitespace characters (?=.*[!$#+@%&]) # nust contain one of these symbols .{8,} # match a...

splits into command arguments: spaces split quotes keep spaced texts together \" escapes the quote

matches all positive or negative float or integers

Regex for validating Nigerian phone numbers using all mobile prefixes in the country

Validates DateTime of format YYYYMMDDhhmmss including Leap Year

validate email address

seperates url path and query

Will only capture patterns matching 4 levels, found at the beginning of a line if /gm tag is used

http://stackoverflow.com/questions/34474298/regex-match-pattern-with-prefixed-string/34474387#34474325

Are you pissed off with your regular expression homework? well then. here is the answer. ^([0-9]|1-9|1(0-9)|2(0-4|5[0-5]))\.([0-9]|1-9|1(0-9)|2(0-4|5[0-5]))\.([0-9]|1-9|1(0-9)|2(0-4|5[0-5]))\.([0-9]|1-9|1(0-9)|2(0-4|5[0-5]))$

Match switch case statemen in C++

it accept -, / and . operator date formate 29-Dec-2015

Find the ID/name of facebook users/pages in widgets, or links.

For Visa, Mastercard, Discover, and AMEX