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Update docs/regex/tutorial.md

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Co-authored-by: yubiuser <github@yubiuser.dev>
Signed-off-by: Dominik <DL6ER@users.noreply.github.com>
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2025-03-10 21:36:21 +01:00
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@@ -106,7 +106,7 @@ Character class | Equivalent | Pi-hole specific | Interpretation
*) FTL matches case-insensitive by default as case does not matter in domain names
Note that character classes are abbreviations, they need to be used in character groups, i.e., enclosed in `[]`. As such, the equivalent of `[0-9]` would be `[[:digit:]]`, *not* `[:digit:]`. It ia allowed to mix character classes with classical character groups. For example, `[a-z0-9]` is identical to `[a-z[:digit:]]`.
Note that character classes are abbreviations, they need to be used in character groups, i.e., enclosed in `[]`. As such, the equivalent of `[0-9]` would be `[[:digit:]]`, *not* `[:digit:]`. It is allowed to mix character classes with classical character groups. For example, `[a-z0-9]` is identical to `[a-z[:digit:]]`.
# Advanced examples