Regular Expressions 101

matches strings like: "01/04/2023", "14/May/24" and "20" (age). WARNING: for american dates swap day and month! Groups: Date - the whole date Day - day Month - month Year - year (4 or 2 digits) Age - if the string is just one number (Ex. "18"), matches the same as year

1000-9999 years '-', ' ', ':', '.', or '/' may be user as divider

1-12 / 2022

Write a program, which matches a date in the format "dd{separator}MMM{separator}yyyy". Use capturing groups in your regular expression.

Simple datetime expression for [DD.MM[.YYYY]]T[hh[:mm]]

expression pour checker les dates

this regular expression is for validating dates in yyyy-mm-dd format

Parses most of the variations of ISO8601 that are allowed, including dates only and date/time with or without the time zone.

Matching %d-%b date format with or without leading 0 in the day

/(^((\d{4}-(((013578]|[1)-(01-9]|[1-2]\d|3[01]))))|((\d{4}-(((0[469]|[1)-(01-9]|[1-2]\d|[3)))))|((\d{4}-(02]-(0[1-9]|[1-2]\d)))))T(([01]\d|2[0-3]):([0-5]\d):([0-5]\d))?([+-\d:[0-5]\d)$)/gm

Extract Amount and Date from Paystub

Parses ISO date like: 2021-01-19T15:21:32.59+02:00 and returns these named groups: fulldate (full date and time) date (2021-01-19) time (15:21:32.59) tz (+02:00)

For Dates formatted YYYY-MM-DD separated by Dot (.) Dash(-) or Slash(/) like (2021-04-08) with Zeros for single digit Month and Day.

For Dates formatted YYYY-M-D separated by Dot (.) Dash(-) or Slash(/) like (2021-9-2) without leading Zeros for single digit Month and Day.

For Dates formatted DD-MM-YYYY separated by Dot (.) Dash(-) or Slash(/) like (28–02-2021) with leading Zeros for single digit Month and Day.

For Dates formatted D-M-YYYY separated by Dot (.) Dash(-) or Slash(/) like (28-2-2021) without leading Zeros for single digit Month and Day.

For Dates formatted M-D-YYYY separated by Dot (.) Dash(-) or Slash(/) like (9-2-2021) without leading Zeros for single digit Month and Day.

For Dates formatted MM-DD-YYYY separated by Dot (.) Dash(-) or Slash(/) like (09-02-2021) with leading Zeros for single digit Month and Day.

Regex pattern (1/2) for function "def extract_appealscourt_dispo()" for Mississippi. This function extracts the part of the dispo relative to the court of appeals when dispo is reported relative to multiple courts.

Regex pattern (2/2) for function "def extract_appealscourt_dispo()" for Mississippi. This function extracts the part of the dispo relative to the court of appeals when dispo is reported relative to multiple courts.

Takes a syslog with the basic pattern: date-&-time server process: message

1/Jul/2013 03:27:12ss

Grab time from datetime

Trying out based on list of these formats

Trying out based on list of these formats

Trying out based on list of these formats

Matches Date & time in group 1, and the PID in group 4. will update to match computer name and user names too when i can.

used to pull Date, time and PID from linux log files

Used this for a lab in my R class. We copied and pasted WHAS 500 data. The the data values in the raw data do not have quotes around them.

YYYYMMDD YYYY-MM-DD YYYY.MM.DD YYYY/MM/DD YYYY-M-D YYYY.M.D YYYY/M/D If the sep[-./] is not given, "0" must appear before a single num. such as 20180203, 20190905. If the sep [-./] is given, the prefix 0 is optional.

This Regex parse whats-app messages to 4 groups: Group1- Date (dd/mm/yyyy) Group2- Time (hh:mm) Group3- Author/Sender (name or phone number) Group4- Chat (actual chat data)

YYYYMMDD YYYY-MM-DD YYYY.MM.DD YYYY/MM/DD YYYY-M-D YYYY.M.D YYYY/M/D If the sep[-./] is not given, "0" must appear before a single num. such as 20180203, 20190905. If the sep [-./] is given, the prefix 0 is optional.

import time print(time.time()) import datetime print(datetime.datetime.now()) from datetime import datetime print(datetime.now()) from datetime import datetime as dt print(dt.now())

Three letter or full text month name (including Sept for September) with or without upper case first letter for month followed by one or two digit day with no intervening white space. examples: Jan10 february29 Sept15 september30 Invalid dates can get by: eg February30, Jun31

GS1Numeric Serialized GTIN with Lot and Expiry Will recognize and pull into groups the following: GTIN-14 Serial Number Expiration Date Lot

A collection of dates used for the Data Science with Python course

Matches dates in the following format: %Y/%m/%dT%H:%M:%S This is 24h format (00-23h) and no leap seconds.

Matches dates in the following format: %Y/%m/%dT%H:%M:%S This is 24h format (00-23h) and no leap seconds.

designed to work specifically with the parser of the python dateutil package

http://www.pelagodesign.com/blog/2009/05/20/iso-8601-date-validation-that-doesnt-suck/