On Wed, Sep 04, 2024 at 04:23:17PM +0200, Emanuele Torre wrote:
>
> I have not looked at the code of busybox sed much, but I think there is
> alredy some code that can detect whether a character is in a bracket
Not totally true. Similar logic exist in editors/sed.c:366,
index_of_next_unescaped_regexp_delim(), but doesn't handle elements
containing a bracket, like word class, correctly. For example,
echo a | sed 's/[[:alpha:]/]/b/'
busybox:
sed: bad option in substitution expression
GNU sed:
b
This function should be fixed as well.
> expression or not because in e.g. s/[/]// the / in the bracket
> expression does not terminate the pattern of the substitute command.
>
> Maybe you can reuse or adapt that code.
Best regards,
Yao Zi
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