Regular Expressions 101

Explanation

Pro

+repeats the group contents below at least once:

1st Alternativea+(?(?!b)(*ACCEPT))

a+the literal a (97₁₀ / 141₈ / 61₁₆) (case sensitive), repeated at least once

Condition(?(?!b)(*ACCEPT))

Uses the first branch if the lookaround matches

Negative Lookahead(?!b)

bthe literal b (98₁₀ / 142₈ / 62₁₆) (case sensitive)

If the condition is true, match this branch:(*ACCEPT)

(*ACCEPT)immediately succeeds the current match or subroutine; inside an assertion, resolves it according to whether it is positive or negative

2nd Alternativeb+(?(?!c)(*ACCEPT))

b+the literal b (98₁₀ / 142₈ / 62₁₆) (case sensitive), repeated at least once

Condition(?(?!c)(*ACCEPT))

Uses the first branch if the lookaround matches

Negative Lookahead(?!c)

cthe literal c (99₁₀ / 143₈ / 63₁₆) (case sensitive)

If the condition is true, match this branch:(*ACCEPT)

(*ACCEPT)immediately succeeds the current match or subroutine; inside an assertion, resolves it according to whether it is positive or negative

3rd Alternativec+(?(?!d)(*ACCEPT))

c+the literal c (99₁₀ / 143₈ / 63₁₆) (case sensitive), repeated at least once

Condition(?(?!d)(*ACCEPT))

Uses the first branch if the lookaround matches

Negative Lookahead(?!d)

dthe literal d (100₁₀ / 144₈ / 64₁₆) (case sensitive)

If the condition is true, match this branch:(*ACCEPT)

(*ACCEPT)immediately succeeds the current match or subroutine; inside an assertion, resolves it according to whether it is positive or negative

4th Alternatived+(?(?!e)(*ACCEPT))

d+the literal d (100₁₀ / 144₈ / 64₁₆) (case sensitive), repeated at least once

Condition(?(?!e)(*ACCEPT))

Uses the first branch if the lookaround matches

Negative Lookahead(?!e)

ethe literal e (101₁₀ / 145₈ / 65₁₆) (case sensitive)

If the condition is true, match this branch:(*ACCEPT)

(*ACCEPT)immediately succeeds the current match or subroutine; inside an assertion, resolves it according to whether it is positive or negative

5th Alternativee+(?(?!f)(*ACCEPT))

e+the literal e (101₁₀ / 145₈ / 65₁₆) (case sensitive), repeated at least once

Condition(?(?!f)(*ACCEPT))

Uses the first branch if the lookaround matches

Negative Lookahead(?!f)

fthe literal f (102₁₀ / 146₈ / 66₁₆) (case sensitive)

If the condition is true, match this branch:(*ACCEPT)

(*ACCEPT)immediately succeeds the current match or subroutine; inside an assertion, resolves it according to whether it is positive or negative

6th Alternativef+(?(?!g)(*ACCEPT))

f+the literal f (102₁₀ / 146₈ / 66₁₆) (case sensitive), repeated at least once

Condition(?(?!g)(*ACCEPT))

Uses the first branch if the lookaround matches

Negative Lookahead(?!g)

gthe literal g (103₁₀ / 147₈ / 67₁₆) (case sensitive)

If the condition is true, match this branch:(*ACCEPT)

7th Alternativeg+(?(?!h)(*ACCEPT))

8th Alternativeh+(?(?!i)(*ACCEPT))

9th Alternativei+(?(?!j)(*ACCEPT))

10th Alternativej+(?(?!k)(*ACCEPT))

11th Alternativek+(?(?!l)(*ACCEPT))

12th Alternativel+(?(?!m)(*ACCEPT))

13th Alternativem+(?(?!n)(*ACCEPT))

14th Alternativen+(?(?!o)(*ACCEPT))

15th Alternativeo+(?(?!p)(*ACCEPT))

16th Alternativep+(?(?!q)(*ACCEPT))

17th Alternativeq+(?(?!r)(*ACCEPT))

18th Alternativer+(?(?!s)(*ACCEPT))

19th Alternatives+(?(?!t)(*ACCEPT))

20th Alternativet+(?(?!u)(*ACCEPT))

21st Alternativeu+(?(?!v)(*ACCEPT))

22nd Alternativev+(?(?!w)(*ACCEPT))

23rd Alternativew+(?(?!x)(*ACCEPT))

24th Alternativex+(?(?!y)(*ACCEPT))

25th Alternativey+(?(?!z)(*ACCEPT))

26th Alternativez+(?(?!$)(*ACCEPT))

Global pattern flags

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

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

((?:a+(?(?!b)(*ACCEPT))|b+(?(?!c)(*ACCEPT))|c+(?(?!d)(*ACCEPT))|d+(?(?!e)(*ACCEPT))|e+(?(?!f)(*ACCEPT))|f+(?(?!g)(*ACCEPT))|g+(?(?!h)(*ACCEPT))|h+(?(?!i)(*ACCEPT))|i+(?(?!j)(*ACCEPT))|j+(?(?!k)(*ACCEPT))|k+(?(?!l)(*ACCEPT))|l+(?(?!m)(*ACCEPT))|m+(?(?!n)(*ACCEPT))|n+(?(?!o)(*ACCEPT))|o+(?(?!p)(*ACCEPT))|p+(?(?!q)(*ACCEPT))|q+(?(?!r)(*ACCEPT))|r+(?(?!s)(*ACCEPT))|s+(?(?!t)(*ACCEPT))|t+(?(?!u)(*ACCEPT))|u+(?(?!v)(*ACCEPT))|v+(?(?!w)(*ACCEPT))|w+(?(?!x)(*ACCEPT))|x+(?(?!y)(*ACCEPT))|y+(?(?!z)(*ACCEPT))|z+(?(?!$)(*ACCEPT)))+)

New

abcghiijkyxz