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Copy pathmod.rs
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115 lines (109 loc) · 3.83 KB
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Copy pathmod.rs
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115 lines (109 loc) · 3.83 KB
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use std::collections::HashMap;
use std::fmt::{Debug, Formatter};
use std::str::from_utf8;
use crate::spec::tag::ns::Namespace;
#[derive(Copy, Clone, Eq, PartialEq, Debug)]
pub enum ElementClosingTag {
Omitted,
Present,
SelfClosing,
Void,
}
#[derive(Copy, Clone, Eq, PartialEq, Debug)]
pub enum ScriptOrStyleLang {
CSS,
Data,
JS,
}
// Derive Eq for testing.
#[derive(Eq, PartialEq)]
pub enum NodeData {
Bang {
code: Vec<u8>,
// If the source unexpectedly ended before `>`, we can't add it, as otherwise output could be longer than source.
ended: bool,
},
Comment {
code: Vec<u8>,
// If the source unexpectedly ended before `-->`, we can't add it, as otherwise output could be longer than source.
ended: bool,
},
Element {
attributes: HashMap<Vec<u8>, Vec<u8>>,
children: Vec<NodeData>,
// If the source doesn't have a closing tag, then we can't add one, as otherwise output could be longer than source.
closing_tag: ElementClosingTag,
name: Vec<u8>,
namespace: Namespace,
// WARNING: This should only be set during minification, as minification can alter tree (e.g. remove text nodes completely).
// If the next text or element sibling is an element, this will be set to its tag name.
// Otherwise, this will be empty. It should be empty on creation.
next_sibling_element_name: Vec<u8>,
},
Instruction {
code: Vec<u8>,
// If the source unexpectedly ended before `?>`, we can't add it, as otherwise output could be longer than source.
ended: bool,
},
// Entities should not be decoded in ScriptOrStyleContent.
ScriptOrStyleContent {
code: Vec<u8>,
lang: ScriptOrStyleLang,
},
Text {
value: Vec<u8>,
},
}
fn str(bytes: &[u8]) -> &str {
from_utf8(bytes).unwrap()
}
impl Debug for NodeData {
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
match self {
NodeData::Bang { code, ended } => f
.debug_struct("Bang")
.field("code", &from_utf8(code).unwrap().to_string())
.field("ended", ended)
.finish(),
NodeData::Comment { code, ended } => f
.debug_struct("Comment")
.field("code", &from_utf8(code).unwrap().to_string())
.field("ended", ended)
.finish(),
NodeData::Element {
attributes,
children,
closing_tag,
name,
namespace,
next_sibling_element_name,
} => f
.debug_struct("Element")
.field("tag", &{
let mut out = format!("{:?}:{}", namespace, str(name));
for (n, v) in attributes {
out.push_str(format!(" {}={}", str(n), str(v)).as_str());
}
out
})
.field("children", children)
.field("closing_tag", closing_tag)
.field(
"next_sibling_element_name",
&from_utf8(next_sibling_element_name).unwrap().to_string(),
)
.finish(),
NodeData::Instruction { code, ended } => f
.debug_struct("Instruction")
.field("code", &from_utf8(code).unwrap().to_string())
.field("ended", ended)
.finish(),
NodeData::ScriptOrStyleContent { code, lang } => f
.debug_struct("ScriptOrStyleContent")
.field("code", &from_utf8(code).unwrap().to_string())
.field("lang", lang)
.finish(),
NodeData::Text { value } => f.write_str(str(value)),
}
}
}