Struct BuiltinRules 

pub struct BuiltinRules;

Available on crate feature analysis only.

Built-in lint rules registry

Provides access to all built-in rules that check for common issues in ASS subtitle scripts. Rules are organized by category and can be used individually or as a complete set.

Performance

All rules are designed for efficient execution with minimal memory overhead. Most rules have O(n) or O(n log n) time complexity.

Rule List

• TimingOverlapRule: Detects overlapping dialogue events
• NegativeDurationRule: Finds events with invalid durations
• InvalidColorRule: Validates color formats in styles and tags
• MissingStyleRule: Checks for undefined style references
• InvalidTagRule: Detects malformed override tags
• PerformanceRule: Identifies performance-impacting patterns
• EncodingRule: Validates text encoding and character usage
• AccessibilityRule: Ensures readability and compatibility

Implementations

impl BuiltinRules

pub fn all_rules() -> Vec<Box<dyn LintRule>>

Get all built-in linting rules

Returns a vector of all available built-in rules ready for use. Rules are returned in their default configuration with standard severity levels and categories.

Example

use ass_core::analysis::linting::rules::BuiltinRules;

let rules = BuiltinRules::all_rules();
assert_eq!(rules.len(), 8); // All built-in rules

pub fn rules_for_category(category: IssueCategory) -> Vec<Box<dyn LintRule>>

Get rules by category

Returns only rules that check issues in the specified category. Useful for focused linting or when only certain types of issues need to be checked.

Arguments

• category - The issue category to filter by

Example

use ass_core::analysis::linting::{IssueCategory, rules::BuiltinRules};

let timing_rules = BuiltinRules::rules_for_category(IssueCategory::Timing);
// Returns timing-related rules only

pub fn rule_by_id(id: &str) -> Option<Box<dyn LintRule>>

Get rule by ID

Returns the rule with the specified ID, or None if no such rule exists. Rule IDs are unique identifiers used for configuration and reporting.

Arguments

• id - The rule ID to search for

Example

use ass_core::analysis::linting::rules::BuiltinRules;

let rule = BuiltinRules::rule_by_id("timing-overlap");
assert!(rule.is_some());
assert_eq!(rule.unwrap().id(), "timing-overlap");

pub fn all_rule_ids() -> Vec<&'static str>

Get all rule IDs

Returns a vector of all available rule IDs for configuration and reporting purposes.

Example

use ass_core::analysis::linting::rules::BuiltinRules;

let ids = BuiltinRules::all_rule_ids();
assert!(ids.contains(&"timing-overlap"));
assert!(ids.contains(&"negative-duration"));