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Add documentation of SubString #23957

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Oct 3, 2017
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Add documentation of SubString #23957

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Add documentation of SubString
bkamins Oct 1, 2017
c5f29c8
moved to basics section
bkamins Oct 2, 2017
af03cae
improved the description
bkamins Oct 2, 2017
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18 changes: 18 additions & 0 deletions doc/src/manual/strings.md
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Expand Up @@ -228,6 +228,24 @@ julia> str[6:6]
The former is a single character value of type `Char`, while the latter is a string value that
happens to contain only a single character. In Julia these are very different things.

Range indexing makes a copy of the selected part of the original string.
Alternatively, it is possible to create a view into a string using the type `SubString`,
for example:

```jldoctest
julia> str = "long string"
"long string"

julia> substr = SubString(str, 1, 4)
"long"

julia> typeof(substr)
SubString{String}
```

Several standard functions like [`chop`](@ref), [`chomp`](@ref) or [`strip`](@ref)
return a `SubString`.

## Unicode and UTF-8

Julia fully supports Unicode characters and strings. As [discussed above](@ref man-characters), in character
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