Enum Error 

#[non_exhaustive]
pub enum Error {
    XmlParse(String),
    NotTtmlRoot(String),
    MissingElement(&'static str),
    MissingAttribute {
        element: &'static str,
        attr: &'static str,
    },
    InvalidAttribute {
        element: &'static str,
        attr: &'static str,
        reason: String,
    },
    InvalidTimeExpression {
        value: String,
        reason: String,
    },
    Validation(String),
    UnexpectedElement {
        name: String,
        ns: String,
    },
    ProhibitedElement {
        name: String,
    },
    ProhibitedAttribute {
        attr: String,
    },
    ConstraintViolation {
        constraint: String,
        detail: String,
    },
    Serialize(String),
}

Errors that can occur during TTML/IMSC processing.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

XmlParse(String)

XML parsing failed (syntax error, not well-formed).

NotTtmlRoot(String)

The root element is not <tt> in the TTML namespace.

MissingElement(&'static str)

A required element is missing.

MissingAttribute

A required attribute is missing.

Fields

element: &'static str

The element name.

attr: &'static str

The attribute name.

InvalidAttribute

A required attribute value is malformed.

Fields

element: &'static str

The element name.

attr: &'static str

The attribute name.

reason: String

Why the value is invalid.

InvalidTimeExpression

A time-expression could not be parsed.

Fields

value: String

The raw time expression text.

reason: String

Why it’s invalid.

Validation(String)

IMSC profile validation failed.

UnexpectedElement

An unexpected element was found in a location where it is not valid.

Fields

name: String

The element local name.

ns: String

The element namespace, if any.

ProhibitedElement

An element was found that is prohibited by the content profile.

Fields

name: String

The element name.

ProhibitedAttribute

An attribute was found that is prohibited by the content profile.

Fields

attr: String

The attribute name.

ConstraintViolation

A generic constraint violation.

Fields

constraint: String

The constraint that was violated.

detail: String

Additional detail.

Serialize(String)

Serialization error.

Trait Implementations

impl Debug for Error

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Error

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for Error

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.