regex101: PCRE (Legacy) Match Workspace

Group 1([^\nw].{5}|.[^\no].{4}|.{2}[^\nr].{3}|.{3}[^\nl].{2}|.{4}[^\nd].|.{5}[^\n.]$|^.{0,5})

1st Alternative[^\nw].{5}

Negated Character Class[^\nw]

\na line-feed (newline) character (ASCII 10)

wthe literal w (119₁₀ / 167₈ / 77₁₆) (case sensitive)

.{5}any character (except for line terminators), repeated exactly 5 times

2nd Alternative.[^\no].{4}

.any character (except for line terminators)

Negated Character Class[^\no]

\na line-feed (newline) character (ASCII 10)

othe literal o (111₁₀ / 157₈ / 6F₁₆) (case sensitive)

.{4}any character (except for line terminators), repeated exactly 4 times

3rd Alternative.{2}[^\nr].{3}

.{2}any character (except for line terminators), repeated exactly 2 times

Negated Character Class[^\nr]

\na line-feed (newline) character (ASCII 10)

rthe literal r (114₁₀ / 162₈ / 72₁₆) (case sensitive)

.{3}any character (except for line terminators), repeated exactly 3 times

4th Alternative.{3}[^\nl].{2}

.{3}any character (except for line terminators), repeated exactly 3 times

Negated Character Class[^\nl]

\na line-feed (newline) character (ASCII 10)

lthe literal l (108₁₀ / 154₈ / 6C₁₆) (case sensitive)

.{2}any character (except for line terminators), repeated exactly 2 times

5th Alternative.{4}[^\nd].

.{4}any character (except for line terminators), repeated exactly 4 times

Negated Character Class[^\nd]

\na line-feed (newline) character (ASCII 10)

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

.any character (except for line terminators)

6th Alternative.{5}[^\n.]$

.{5}any character (except for line terminators), repeated exactly 5 times

Negated Character Class[^\n.]

\na line-feed (newline) character (ASCII 10)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

$end of line

7th Alternative^.{0,5}

^start of line

.{0,5}any character (except for line terminators), repeated between 0 and 5 times

$end of line

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

Search reference

Regular Expression

([^\nw].{5}|.[^\no].{4}|.{2}[^\nr].{3}|.{3}[^\nl].{2}|.{4}[^\nd].|.{5}[^\n.]$|^.{0,5})$

New

1
12
123
1234
12345
123456
Hello, world.
Hello, world
Hello, world.                
             ^ Spaces added ^

Regular Expressions 101

Regular Expression

Extraction