regex101: PCRE (Legacy) Substitution Workspace

1st Alternative(?:\w+::\w+(?:)?|\p{L}+(?:[-'_$]\p{L}+)*)(*SKIP)(*F)

Non-Capturing Group(?:\w+::\w+(?:)?|\p{L}+(?:[-'_$]\p{L}+)*)

1st Alternative\w+::\w+(?:)?

\w+any word character, repeated at least once

::the literal text ::

\w+any word character, repeated at least once

Non-Capturing Group(?:)?

?repeats the group contents below at most once:

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

2nd Alternative\p{L}+(?:[-'_$]\p{L}+)*

\p{L}+any Unicode letter, repeated at least once

Non-Capturing Group(?:[-'_$]\p{L}+)*

*repeats the group contents below any number of times:

Character Class[-'_$]

-the literal - (45₁₀ / 55₈ / 2D₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

$the literal $ (36₁₀ / 44₈ / 24₁₆)

\p{L}+any Unicode letter, repeated at least once

(*SKIP)acts like (*PRUNE), but the next unanchored match attempt starts where (*SKIP) was reached instead of at the next subject character

(*F)forces the current match attempt to fail at this position

2nd Alternative[^\p{L}\s]

Negated Character Class[^\p{L}\s]

\p{L}any Unicode letter

\sany whitespace character

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

25 tokens

Regular Expression

(?:\w+::\w+(?:\(\))?|\p{L}+(?:[-'_$]\p{L}+)*)(*SKIP)(*F)|[^\p{L}\s]

New

# Re-loading pkgdown while it's running causes weird behaviour with # the context cache don't
# Needs to handle NA for desc::desc_get()
# Update href of toc anchors , use "-" instead "."
# Keep something$col or here_you::must_stay

Substitution

# Re-loading pkgdown while it's running causes weird behaviour with # the context cache don't
# Needs to handle NA for desc::desc_get()
# Update href of toc anchors , use "-" instead "."
# Keep something$col or here_you::must_stay