Regular Expressions 101

Pro

Group title(?P<title>[^\n]+)

Negated Character Class[^\n]+

+matches at least one character outside the set below:

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

Group subtitle(?P<subtitle>[^\n]+)

Negated Character Class[^\n]+

+matches at least one character outside the set below:

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

Group 3((?P<etc>[^\n].*?)\n\n|\n)

1st Alternative(?P<etc>[^\n].*?)\n\n

Group etc(?P<etc>[^\n].*?)

Negated Character Class[^\n]

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

.*?any character, repeated any number of times

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

2nd Alternative\n

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

Global pattern flags

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

s modifier: single line. Allows a dot to match line terminators

x modifier: extended. Ignores unescaped whitespace and comments outside character classes

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25 tokens


(?P<title>[^\n]+)\n
(?P<subtitle>[^\n]+)\n
((?P<etc>[^\n].*?)\n\n|\n)

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