Enum ParseError 

pub enum ParseError {
    InvalidByte {
        offset: usize,
        line: usize,
        value: u8,
    },
    MissingHeader {
        line: usize,
    },
    UnsupportedVersion {
        line: usize,
        version: String,
    },
    MissingRequiredField {
        field: &'static str,
    },
    InvalidNumber {
        line: usize,
        field: &'static str,
        value: String,
    },
    MalformedRecord {
        line: usize,
        keyword: &'static str,
        reason: &'static str,
    },
}

Errors returned by crate::parse. Line numbers are 1-based.

Examples

use adobe_font_metrics::{ParseError, parse};

let err = parse("").err();

assert!(matches!(err, Some(ParseError::MissingHeader { line: 1 })));

Variants

InvalidByte

A byte is outside the supported AFM ASCII text repertoire.

Fields

offset: usize

Zero-based byte offset in the input.

line: usize

One-based source line number.

value: u8

The rejected byte.

MissingHeader

First non-blank, non-comment line was not StartFontMetrics.

Fields

line: usize

1-based source line number where the missing header was expected.

UnsupportedVersion

StartFontMetrics declared a version outside the 4.x family.

Fields

line: usize

1-based source line number of the offending StartFontMetrics.

version: String

Version literal that was rejected (e.g. "5.0").

MissingRequiredField

A required field is missing: FontName, FontBBox, or EscChar when MappingScheme is 3.

Fields

field: &'static str

Name of the missing field.

InvalidNumber

A token that should have parsed as a number didn’t.

Fields

line: usize

1-based source line number where parsing failed.

field: &'static str

Logical field whose value couldn’t be parsed (e.g. "FontBBox").

value: String

The raw token that failed to parse.

MalformedRecord

A record was structurally malformed (wrong arity, unrecognised boolean, etc.).

Fields

line: usize

1-based source line number where the record appeared.

keyword: &'static str

AFM keyword that introduced the record.

reason: &'static str

Human-readable description of how the record was malformed.

Trait Implementations

impl Clone for ParseError

fn clone(&self) -> ParseError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParseError

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

Formats the value using the given formatter.

impl Display for ParseError

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

Formats the value using the given formatter.

impl Eq for ParseError

impl Error for ParseError

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.

impl PartialEq for ParseError

fn eq(&self, other: &ParseError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for ParseError