Update playbooks_filters.rst (#41628)
Add an example on how to use regexp_replace to modify list items. +label: docsite_pr Fix typo
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@ -910,6 +910,9 @@ To replace text in a string with regex, use the "regex_replace" filter::
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# convert "localhost:80" to "localhost"
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{{ 'localhost:80' | regex_replace(':80') }}
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# add "https://" prefix to each item in a list
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{{ hosts | map('regex_replace', '^(.*)$', 'https://\\1') | list }}
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.. note:: Prior to ansible 2.0, if "regex_replace" filter was used with variables inside YAML arguments (as opposed to simpler 'key=value' arguments),
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then you needed to escape backreferences (e.g. ``\\1``) with 4 backslashes (``\\\\``) instead of 2 (``\\``).
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