On 2/25/20 3:48 PM, jean-christophe manciot wrote:
> ansible 2.9.5 (pip3)
>
> The following sed command:
> - function is to replace all '_' by '-' in all keys only (and not values)
> within a list of dictionaries in memory
> - uses character classes which are probably not supported by regex_replace:
> + [:blank:]: space and tab
> + [:space:]: tab, newline, vertical tab, form feed, carriage return, and
> space
> - a label and loop
>
> |
> sed -E ':l;
> s/^([[:blank:]]*(-[[:blank:]]*)?[^[:space:]:_]*)_([^[:space:]:]*:)/\1-\3/;
> tl;'
> |
>
> I need to use the previous sed over a yaml list of dictionaries.
> If I use a shell command (such as printf "%s\n" "{{ var }}" | sed ...), the
> resulting structure is not yaml anymore.
>
> I could save the var into a file, perform the function over the file and
> reopen the resulting file into memory.
> However, I'm looking for a more efficient way, that is perform only memory
> operation(s).
>
> Is there a way to translate the previous sed expression into a regex_replace
> command?
> Or maybe there is another more ansible way to perform the same function?
Start with "{{ var | from_yaml }}" and you get a Python object which can be
traversed and manipulated.
Regards
Racke
>
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