Regular Expressions 101

1st Alternative(^1\|.*)

Group 1(^1\|.*)

^start of line

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

\|the literal | (124₁₀ / 174₈ / 7C₁₆)

.*any character (except for line terminators), repeated any number of times

2nd Alternative(.*\|1\|.*)

Group 2(.*\|1\|.*)

.*any character (except for line terminators), repeated any number of times

\|the literal | (124₁₀ / 174₈ / 7C₁₆)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

\|the literal | (124₁₀ / 174₈ / 7C₁₆)

.*any character (except for line terminators), repeated any number of times

3rd Alternative(.*\|1$)

Group 3(.*\|1$)

.*any character (except for line terminators), repeated any number of times

\|the literal | (124₁₀ / 174₈ / 7C₁₆)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

$end of line

Global pattern flags

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(^1\|.*)|(.*\|1\|.*)|(.*\|1$)

New

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