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Allow for generically extracting unannotated string #55458

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Allow for generically extracting unannotated string #55458

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8 changes: 6 additions & 2 deletions base/strings/annotated.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,8 @@ A string with metadata, in the form of annotated regions.

More specifically, this is a simple wrapper around any other
[`AbstractString`](@ref) that allows for regions of the wrapped string to be
annotated with labeled values.
annotated with labelled values. The underlying string can be extracted by
calling a string constructor with the `AnnotatedString` as the argument.

```text
C
Expand Down Expand Up @@ -125,7 +126,10 @@ AnnotatedString(s::AnnotatedString, annots::Vector{Tuple{UnitRange{Int}, Pair{Sy
AnnotatedChar(c::AnnotatedChar, annots::Vector{Pair{Symbol, Any}}) =
AnnotatedChar(c.char, vcat(c.annotations, annots))

String(s::AnnotatedString{String}) = s.string # To avoid pointless overhead
# To allow for generically de-annotating a string.
(::Type{T})(s::AnnotatedString{T}) where {T <: AbstractString} = T(s.string)
String(s::AnnotatedString{String}) = s.string # To avoid pointless overhead (and avoid ambiguity)
AnnotatedString(s::AnnotatedString) = s # To resolve an ambiguity

## Conversion/promotion ##

Expand Down