TL;DR

Escape field names before interpolating them into sed regex patterns to prevent incorrect matches.

Guidance

• Identify all occurrences of field name interpolation in sed patterns and apply escaping to prevent regex metacharacter issues.
• Use the suggested fix as a template to escape field names: ESCAPED_FIELD=$(printf '%s\n' "$FIELD" | sed -e 's/[]\/$*.^[]/\\&/g').
• Review plugins/plugin-dev/skills/plugin-settings/scripts/validate-settings.sh (line 77) for the same issue and apply the fix.
• Test the changes with field names containing regex metacharacters to verify correct behavior.

Example

The provided suggested fix code snippet demonstrates how to escape field names:

ESCAPED_FIELD=$(printf '%s\n' "$FIELD" | sed -e 's/[]\/$*.^[]/\\&/g')
VALUE=$(echo "$FRONTMATTER" | grep "^${FIELD}:" | sed "s/${ESCAPED_FIELD}: *//" | ...)

Notes

This fix assumes that the field names do not contain newline characters, as the printf and sed commands are designed to handle single-line input.

Recommendation

Apply the workaround by escaping field names before interpolation, as it directly addresses the identified issue and prevents incorrect sed pattern matches.