Enum PatternError 

#[non_exhaustive]
pub enum PatternError {
    Empty,
    Whitespace,
    BareWildcard,
    MisplacedWildcard,
    MultiSegmentGlob,
    EmptySuffix,
    NoDot,
    EmptyLabel,
    LabelHyphenBorder {
        label: String,
    },
    BadChar {
        label: String,
    },
}

Closed-enum classification of a single pattern’s rejection reason. Used by validate_pattern and carried as the kind field on InvalidPatternIssue. S3b’s doiget config doctor surface branches on this for actionable per-error rendering.

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.

Empty

Empty string.

Whitespace

Leading or trailing whitespace.

BareWildcard

Bare * with no leading-segment suffix.

MisplacedWildcard

* appearing anywhere other than the very first character followed by ..

MultiSegmentGlob

Multi-segment glob (a second * after stripping *. prefix).

EmptySuffix

Nothing after the *. prefix (*. alone).

NoDot

No . in the host portion (single-label hostnames rejected).

EmptyLabel

A label is empty (consecutive .s or leading/trailing .).

LabelHyphenBorder

A label starts or ends with -.

Fields

label: String

The offending label.

BadChar

A label contains a character outside the allowed host charset.

Fields

label: String

The offending label.

Trait Implementations

impl Clone for PatternError

fn clone(&self) -> PatternError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PatternError

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

Formats the value using the given formatter.

impl Display for PatternError

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

Formats the value using the given formatter.

impl Error for PatternError

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 PatternError

fn eq(&self, other: &PatternError) -> 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 Eq for PatternError

impl StructuralPartialEq for PatternError