pub const PARSE_ERROR: &str = "dtcs:parse-error";
pub const UNSUPPORTED_VERSION: &str = "dtcs:unsupported-version";
pub const MISSING_REQUIRED_FIELD: &str = "dtcs:missing-required-field";
pub const DUPLICATE_IDENTIFIER: &str = "dtcs:duplicate-identifier";
pub const INVALID_IDENTIFIER: &str = "dtcs:invalid-identifier";
pub const UNKNOWN_FIELD: &str = "dtcs:unknown-field";
pub const MISSING_LINEAGE: &str = "dtcs:missing-lineage";
pub const AMBIGUOUS_REFERENCE: &str = "dtcs:ambiguous-reference";
pub const INVALID_TYPE: &str = "dtcs:invalid-type";
pub const UNRESOLVED_REFERENCE: &str = "dtcs:unresolved-reference";
pub const INVALID_SEMANTIC_ACTION: &str = "dtcs:invalid-semantic-action";
pub const INVALID_RULE: &str = "dtcs:invalid-rule";
pub const INVALID_EXTENSION: &str = "dtcs:invalid-extension";