Module input 

Validation helpers for path and text inputs.

Functions

reject_unicode_controls

Reject control characters that can hide or reorder text.

validate_optional_trimmed

Validate an optional string when present and return None for absent values.

validate_path_safe_identifier

Validate a required identifier that is safe to use as a path segment.

validate_required_trimmed

Validate a required string that must not contain leading or trailing whitespace.

validate_safe_path

Validate that a path-like input cannot traverse outside its base.