Convert a string using regex_replace filter python and ansible

Question

i would convert all the lines here @cat\n@chicken\napple\nfruit\njuice into + : @cat : all\n+ :@chicken: all\n+ :apple : all\n+ : fruit : all\njuice : all in other hand i would get this for every line + : value : all

i would use regex_replace filter to perform the task, i don't have too much knowledge on python, i am trying to do this:

{{ '@cat\n@chicken\napple\nfruit\njuice'| regex_replace('^(?P<name>)$', '\\g<name>: ALL' , multiline=True, ignorecase=True)}} but nothing happens, i am missing something here

^(?P<name>)$ is a pattern that only matches an empty string. — Wiktor Stribiżew
– Wiktor Stribiżew, Commented Aug 11, 2022 at 21:16
thank you for the clarification so what you think is missing there? — medisamm
– medisamm, Commented Aug 11, 2022 at 21:20
unfortunately it didn't work there is something missing maybe quoting — medisamm
– medisamm, Commented Aug 11, 2022 at 21:45

Wiktor Stribiżew · Accepted Answer · 2022-08-11 21:58:49Z

3

You can use

regex_replace(r'.+', r'+ : \g<0> : all' )

to wrap each non-empty line with + : <line_here> : all text.

Note that . matches CR chars, too, and if the line endings are CRLF, you will have to replace . with [^\r\n].

Here, \g<0> is a replacement backreference to the whole match value, no need using named capturing groups.

answered Aug 11, 2022 at 21:58

Wiktor Stribiżew

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