Regular Expressions 101

^start of line

Group 1(0(?:[123]|{.+?})+0)

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

Non-Capturing Group(?:[123]|{.+?})+

+repeats the group contents below at least once:

1st Alternative[123]

Character Class[123]

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

3the literal 3 (51₁₀ / 63₈ / 33₁₆)

2nd Alternative{.+?}

{the literal { (123₁₀ / 173₈ / 7B₁₆)

.+?any character (except for line terminators), repeated at least once

}the literal } (125₁₀ / 175₈ / 7D₁₆)

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

^(0(?:[123]|{.+?})+0)

New

01232231{whatever 3 gArBaGe? I want.}121{foo}2310312{bar}3120123
01212121{hello 0}121312
01213123123123{21310030123012301}31231230123