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Minor regular-expressions.Rmd modification #1

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2 changes: 1 addition & 1 deletion vignettes/regular-expressions.Rmd
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Expand Up @@ -206,7 +206,7 @@ You can also create your own __character classes__ using `[]`:
* `[a-z]`: matches every character between a and z
(in Unicode code point order).
* `[^abc]`: matches anything except a, b, or c.
* `[\^\-]`: matches `-` or `\`.
* `[\^\-]`: matches `-` or `^`.

There are a number of pre-built classes that you can use inside `[]`:

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