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Description
Describe the problem
In this documentation example, a function(?) called regex_search is used:
validator: >-
{% if not (project_name | regex_search('^[a-z][a-z0-9\-]+$')) %}
project_name must start with a letter, followed one or more letters, digits or dashes all lowercase.
{% endif %}
There is no further mention of this in the documentation or any additional validator methods that are discussed. It is also not part of the jinja2 docs.
Template
NA
To Reproduce
No response
Logs
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Expected behavior
Please include available validation commands in the documentation.
Screenshots/screencasts/logs
No response
Operating system
Linux
Operating system distribution and version
NA
Copier version
9.1.1
Python version
NA
Installation method
pipx+pypi
Additional context
I am trying to find if it is possible to validate input based on existing file names or bash command outputs (for instance trying to validate that a response to a question is unique based on grep output in bash... regex seems to exist with regex_search but no further validation methods are documented).