sieve-kit 0.2.1

Structured mail filter rules engine with RFC 5228 Sieve semantics: conditions, actions, vacation/notify evaluation, IMAP flags, bounded regex
Documentation 
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//! Error type for filter rule construction and validation.

use thiserror::Error as ThisError;

/// Errors produced when constructing or validating filter rules.
#[derive(Debug, ThisError)]
pub enum FilterError {
    /// A `Condition` with [`Operator::Regex`](crate::types::Operator::Regex)
    /// carries a pattern that does not compile.
    #[error("invalid regex pattern {pattern:?}")]
    InvalidRegex {
        /// The offending pattern.
        pattern: String,
        /// The underlying regex parse error.
        #[source]
        source: regex::Error,
    },
    /// The rule's `id` field is empty.
    #[error("rule id must not be empty")]
    EmptyRuleId,
    /// The rule's `name` field is empty.
    #[error("rule name must not be empty")]
    EmptyRuleName,
    /// A [`Vacation`](crate::types::Vacation) action carries invalid
    /// arguments (empty message body or a zero-day respond period).
    #[error("invalid vacation arguments: {reason}")]
    InvalidVacation {
        /// What is wrong with the vacation configuration.
        reason: String,
    },
}