Regular Expressions 101

1st Alternative($some text$\n|$some test$\n|(\[abc\]))

Group 1($some text$\n|$some test$\n|(\[abc\]))

1st Alternative$some text$\n

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

some textthe literal text some text (case sensitive)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

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

2nd Alternative$some test$\n

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

some testthe literal text some test (case sensitive)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

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

3rd Alternative(\[abc\])

Group 2(\[abc\])

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

abcthe literal text abc (case sensitive)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

2nd Alternative(^$\n)

Group 3(^$\n)

^start of line

$end of line

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

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

(\(some text\)\n|\(some test\)\n|(\[abc\]))|(^$\n)

New

Title: (some text)
My Title [abc]

Content: (some test)
My long content paragraph. With multiple sentences. [abc]

Short Content: (some text)
Short content [abc]

Regular Expression

Substitution