Regex pattern for selecting an inverted word on a list of strings

[jean-christophe manciot]

The goal is to select all the lines of a list which do NOT contain a specific word.

For instance, "{{ files }}" contains a list of filenames. We need to select all the filenames which do not include the word 'all'.

So with:

files:

- aaaaaaaaaaa

- bbbbbbbbbbb

- cccccccccccc

- d-all-ddddddd

The expected result would be:

files_filtered::

- aaaaaaaaaaa

- bbbbbbbbbbb

- cccccccccccc

I unsuccessfully tried:

  set_fact:

        files_filtered: "{{ files | select('match', '^(.*^((?!all).)*.+)$') | list }}"

The result is empty.

Any suggestion?

[Kai Stian Olstad]

On 06.08.2019 14:57, jean-christophe manciot wrote:
> The goal is to* select all the lines of a list which do NOT contain a
> specific word*.

>
> For instance, "{{ files }}" contains a list of filenames. We need to
> select
> all the filenames which do not include the word 'all'.
>
> So with:
> files:
> - aaaaaaaaaaa
> - bbbbbbbbbbb
> - cccccccccccc
> - d-all-ddddddd
>
> The expected result would be:
> files_filtered::
> - aaaaaaaaaaa
> - bbbbbbbbbbb
> - cccccccccccc
>
> I unsuccessfully tried:
> set_fact:
> files_filtered: "{{ files | select('match',
> '^(.*^((?!all).)*.+)$') | list }}"
>
> The result is empty.
>
> Any suggestion?

Use reject instead of select, and since you looking for containing use
search instead of match.

{{ files | reject('search', 'all') | list }}


--
Kai Stian Olstad