Anchors only support a limited subset of characters
Author: michaelruigrokCreated Nov 12, 2022Updated Mar 3, 2025
The YAML spec allows for anchors to contain any non-whitespace printable character except for []{},.
https://yaml.org/spec/1.2.2/#692-node-anchors
The implementation currently only supports ascii alphanumerics a-zA-Z0-9_-.
Source: go-yaml/yaml