regex101: PCRE (Legacy) Match Workspace

Pro

1st Alternativeonce

oncethe literal text once (case insensitive)

2nd Alternativeevery (?:(?:([1-9][0-9]?[0-9]? )?(hours?|days?))|(?:(?:(?:(1st|2nd|3rd|4th|5th))? ?(monday|tuesday|wednesday|thursday|friday|saturday|sunday))|((?:[1-9]|[1-2][0-9]|3[0-1])(?:st|nd|rd|th))) ?(?:(of the month)? ?(?:(?:repeated every )([2-9][0-9]?[0-9]?) (weeks|months))?)?)

every the literal text every (case insensitive)

Non-Capturing Group(?:(?:([1-9][0-9]?[0-9]? )?(hours?|days?))|(?:(?:(?:(1st|2nd|3rd|4th|5th))? ?(monday|tuesday|wednesday|thursday|friday|saturday|sunday))|((?:[1-9]|[1-2][0-9]|3[0-1])(?:st|nd|rd|th))) ?(?:(of the month)? ?(?:(?:repeated every )([2-9][0-9]?[0-9]?) (weeks|months))?)?)

1st Alternative(?:([1-9][0-9]?[0-9]? )?(hours?|days?))

Non-Capturing Group(?:([1-9][0-9]?[0-9]? )?(hours?|days?))

Group 1([1-9][0-9]?[0-9]? )?

?repeats the group contents below at most once:

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

Character Class[0-9]?

?matches at most one character from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

Character Class[0-9]?

?matches at most one character from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

the literal (32₁₀ / 40₈ / 20₁₆)

Group 2(hours?|days?)

1st Alternativehours?

hourthe literal text hour (case insensitive)

s?optionally matches the literal s (115₁₀ / 163₈ / 73₁₆) (case insensitive)

2nd Alternativedays?

daythe literal text day (case insensitive)

s?optionally matches the literal s (115₁₀ / 163₈ / 73₁₆) (case insensitive)

2nd Alternative(?:(?:(?:(1st|2nd|3rd|4th|5th))? ?(monday|tuesday|wednesday|thursday|friday|saturday|sunday))|((?:[1-9]|[1-2][0-9]|3[0-1])(?:st|nd|rd|th))) ?(?:(of the month)? ?(?:(?:repeated every )([2-9][0-9]?[0-9]?) (weeks|months))?)?

Non-Capturing Group(?:(?:(?:(1st|2nd|3rd|4th|5th))? ?(monday|tuesday|wednesday|thursday|friday|saturday|sunday))|((?:[1-9]|[1-2][0-9]|3[0-1])(?:st|nd|rd|th)))

Non-Capturing Group(?:(1st|2nd|3rd|4th|5th))?

?repeats the group contents below at most once:

Group 3(1st|2nd|3rd|4th|5th)

1st Alternative1st

1stthe literal text 1st (case insensitive)

2nd Alternative2nd

2ndthe literal text 2nd (case insensitive)

3rd Alternative3rd

3rdthe literal text 3rd (case insensitive)

4th Alternative4th

4ththe literal text 4th (case insensitive)

5th Alternative5th

5ththe literal text 5th (case insensitive)

?optionally matches the literal (32₁₀ / 40₈ / 20₁₆)

1st Alternativemonday

mondaythe literal text monday (case insensitive)

2nd Alternativetuesday

3rd Alternativewednesday

4th Alternativethursday

5th Alternativefriday

6th Alternativesaturday

7th Alternativesunday

2nd Alternative((?:[1-9]|[1-2][0-9]|3[0-1])(?:st|nd|rd|th))

?optionally matches the literal (32₁₀ / 40₈ / 20₁₆)

Non-Capturing Group(?:(of the month)? ?(?:(?:repeated every )([2-9][0-9]?[0-9]?) (weeks|months))?)?

Global pattern flags

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

g modifier: global. Finds all matches instead of stopping after the first

25 tokens

Regular Expression

once|every (?:(?:([1-9][0-9]?[0-9]? )?(hours?|days?))|(?:(?:(?:(1st|2nd|3rd|4th|5th))? ?(monday|tuesday|wednesday|thursday|friday|saturday|sunday))|((?:[1-9]|[1-2][0-9]|3[0-1])(?:st|nd|rd|th))) ?(?:(of the month)? ?(?:(?:repeated every )([2-9][0-9]?[0-9]?) (weeks|months))?)?)

New

Every 20th of the month
Once
Every hour
Every day
Every 2 hours
Every 2 days
Every Monday
Every 1st of the month
Every 1st of the month repeated every 3 months
Every 2nd Monday of the month
Every 2nd Monday of the month repeated every 3 months