Enum ttf_parser::CFFError

pub enum CFFError {
    NoCharStrings,
    InvalidOperand,
    InvalidOperator,
    UnsupportedOperator,
    InvalidFloat,
    InvalidOffsetSize,
    NestingLimitReached,
    ArgumentsStackLimitReached,
    InvalidArgumentsStackLength,
}

A list of errors that can occur during a CFF table parsing.

Variants

NoCharStrings

The CFF table doesn't have any char strings.

InvalidOperand

An invalid operand occurred.

InvalidOperator

An invalid operator occurred.

UnsupportedOperator

An unsupported operator occurred.

InvalidFloat

Failed to parse a float number.

InvalidOffsetSize

The OffSize value must be in 1..4 range.

Adobe Technical Note #5176, Table 2 CFF Data Types

NestingLimitReached

Subroutines nesting is limited by 10.

Adobe Technical Note #5177 Appendix B.

ArgumentsStackLimitReached

An arguments stack size is limited by 48 values.

Adobe Technical Note #5177 Appendix B.

InvalidArgumentsStackLength

Each operand expects a specific amount of arguments on the stack.

Usually indicates an implementation error and should not occur on valid fonts.

Trait Implementations

impl Copy for CFFError

impl From<CFFError> for Error

fn from(e: CFFError) -> Self

Performs the conversion.

impl Clone for CFFError

fn clone(&self) -> CFFError

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CFFError

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

Formats the value using the given formatter.

impl Display for CFFError

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

Formats the value using the given formatter.

impl Error for CFFError

fn description(&self) -> &str

This method is soft-deprecated.

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

Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

The lower-level cause of this error, if any.

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

The lower-level source of this error, if any.