Enum ConcealRuleError 

pub enum ConcealRuleError {
    EmptyPattern,
    PatternTooLong {
        len: usize,
    },
    BadRegex {
        detail: String,
    },
    NothingHidden,
    HidesWholeMatch,
    UnknownGroup {
        group: u32,
        groups: u32,
    },
    TooManyRules {
        limit: usize,
    },
}

Why one rule was refused.

Every variant names the rule, because the message reaches a plugin author who has several and needs to know which.

Variants

EmptyPattern

PatternTooLong

Fields

len: usize

BadRegex

Fields

detail: String

NothingHidden

No groups listed, so the rule would hide nothing and cost a match per line to do it.

HidesWholeMatch

Group 0 is the whole match. Hiding it is a deletion rather than a concealment and is almost always a pattern that forgot its capture parentheses.

UnknownGroup

A hide index past the pattern’s group count. Caught here rather than per line, where it would log at rebuild rate.

Fields

group: u32

groups: u32

TooManyRules

The language already declared MAX_CONCEAL_RULES.

Fields

limit: usize

Trait Implementations

impl Clone for ConcealRuleError

fn clone(&self) -> ConcealRuleError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConcealRuleError

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

Formats the value using the given formatter.

impl Display for ConcealRuleError

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

Formats the value using the given formatter.

impl Eq for ConcealRuleError

impl Error for ConcealRuleError

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 ConcealRuleError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ConcealRuleError