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use crate::*;
impl HtmlLinter {
pub(crate) fn check_element_order(
&self,
rule: &Rule,
index: &DOMIndex,
) -> Result<Vec<LintResult>, LinterError> {
let mut results = Vec::new();
if rule.condition == "sequential-order" {
let mut heading_stack = Vec::new();
// More efficient iteration using direct node access
for node_idx in 0..index.get_nodes().len() {
if let Some(node) = index.get_node(node_idx) {
let tag_name = index.resolve_symbol(node.tag_name).unwrap_or_default();
// Check if it's a heading and parse level
if let Some(level) = parse_heading_level(&tag_name) {
match heading_stack.last() {
Some(&prev_level) => {
// Check for skipped heading levels
if level > prev_level + 1 {
results.push(LintResult {
rule: rule.name.clone(),
severity: rule.severity.clone(),
message: format!(
"Heading level jumped from h{} to h{}",
prev_level, level
),
location: Location {
line: node.source_info.line,
column: node.source_info.column,
element: tag_name.clone(),
},
source: node.source_info.source.clone(),
});
}
// Handle heading level changes
if level > prev_level {
heading_stack.push(level);
} else {
while let Some(&stack_level) = heading_stack.last() {
if stack_level >= level {
heading_stack.pop();
} else {
break;
}
}
heading_stack.push(level);
}
}
None => heading_stack.push(level),
}
}
}
}
}
Ok(results)
}
pub(crate) fn check_nesting(
&self,
rule: &Rule,
index: &DOMIndex,
) -> Result<Vec<LintResult>, LinterError> {
let mut results = Vec::new();
let matches = index.query(&rule.selector);
for node_idx in matches {
if let Some(node) = index.get_node(node_idx) {
let should_report = match rule.condition.as_str() {
"parent-label-or-for" => {
!self.has_label_parent(node_idx, index)
&& !self.has_matching_label(node_idx, index)
}
_ => false,
};
if should_report {
results.push(self.create_lint_result(rule, node, index));
}
}
}
Ok(results)
}
pub(crate) fn check_document_structure(
&self,
rule: &Rule,
index: &DOMIndex,
) -> Result<Vec<LintResult>, LinterError> {
let mut results = Vec::new();
match rule.condition.as_str() {
"doctype-present" => {
let has_doctype = index
.get_source_map()
.lines
.iter()
.any(|line| line.trim().to_lowercase().starts_with("<!doctype"));
if !has_doctype {
results.push(LintResult {
rule: rule.name.clone(),
severity: rule.severity.clone(),
message: rule.message.clone(),
location: Location {
line: 1,
column: 1,
element: String::new(),
},
source: String::new(),
});
}
}
_ => {}
}
Ok(results)
}
fn has_label_parent(&self, node_idx: usize, index: &DOMIndex) -> bool {
let mut current_idx = node_idx;
while let Some(parent_idx) = index.get_node(current_idx).and_then(|n| n.parent) {
if let Some(parent_node) = index.get_node(parent_idx) {
if index
.resolve_symbol(parent_node.tag_name)
.unwrap_or_default()
== "label"
{
return true;
}
current_idx = parent_idx;
}
}
false
}
fn has_matching_label(&self, node_idx: usize, index: &DOMIndex) -> bool {
// Get the ID of the current node
if let Some(node) = index.get_node(node_idx) {
let node_id = node.attributes.iter().find_map(|attr| {
if index.resolve_symbol(attr.name).unwrap_or_default() == "id" {
Some(index.resolve_symbol(attr.value).unwrap_or_default())
} else {
None
}
});
// If the node has no ID, it can't have a matching label
if let Some(id) = node_id {
// Look for any label with a matching "for" attribute
index.get_nodes().iter().any(|other_node| {
if index
.resolve_symbol(other_node.tag_name)
.unwrap_or_default()
== "label"
{
other_node.attributes.iter().any(|attr| {
index.resolve_symbol(attr.name).unwrap_or_default() == "for"
&& index.resolve_symbol(attr.value).unwrap_or_default() == id
})
} else {
false
}
})
} else {
false
}
} else {
false
}
}
}
// Helper function to safely parse heading levels
fn parse_heading_level(tag_name: &str) -> Option<i32> {
if !tag_name.starts_with('h') {
return None;
}
tag_name[1..]
.parse::<i32>()
.ok()
.filter(|&level| level >= 1 && level <= 6)
}