Regular Expressions 101

Explanation

Pro

Negative Lookbehind(?<!\\)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

Group code_all(?<code_all> (?<code_start>\`{1,}) (?<code_content>.+?) (?<!`) \g{code_start} (?!`) )

Group code_start(?<code_start>\`{1,})

\`{1,}the literal ` (96₁₀ / 140₈ / 60₁₆) , repeated at least once

Group code_content(?<code_content>.+?)

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

Negative Lookbehind(?<!`)

`the literal ` (96₁₀ / 140₈ / 60₁₆)

\g{code_start}the text saved by group code_start

Negative Lookahead(?!`)

`the literal ` (96₁₀ / 140₈ / 60₁₆)

Global pattern flags

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

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

Ready to run

25 tokens

(?<!\\)
(?<code_all>
    (?<code_start>\`{1,})
    (?<code_content>.+?)
    (?<!`)
    \g{code_start}
    (?!`)
)