agsamantha/node_modules/parseley/lib/ast.d.ts

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2024-10-02 15:15:21 -05:00
/**
* Specificity as defined by Selectors spec.
*
* {@link https://www.w3.org/TR/selectors/#specificity}
*
* Three levels: for id, class, tag (type).
*
* Extra level(s) used in HTML styling don't fit the scope of this package
* and no space reserved for them.
*/
export type Specificity = [number, number, number];
/**
* The `*` selector.
*
* {@link https://www.w3.org/TR/selectors/#the-universal-selector}
*
* `parseley` considers tag name and universal selectors to be unrelated entities
* for simplicity of processing.
*/
export type UniversalSelector = {
type: 'universal';
namespace: string | null;
specificity: Specificity;
};
/**
* Tag name (type) selector.
*
* {@link https://www.w3.org/TR/selectors/#type-selectors}
*
* `parseley` considers tag name and universal selectors to be unrelated entities
* for simplicity of processing.
*/
export type TagSelector = {
type: 'tag';
name: string;
namespace: string | null;
specificity: Specificity;
};
/**
* Class selector.
*
* {@link https://www.w3.org/TR/selectors/#class-html}
*/
export type ClassSelector = {
type: 'class';
name: string;
specificity: Specificity;
};
/**
* Id selector.
*
* {@link https://www.w3.org/TR/selectors/#id-selectors}
*/
export type IdSelector = {
type: 'id';
name: string;
specificity: Specificity;
};
/**
* Attribute presence selector.
*
* {@link https://www.w3.org/TR/selectors/#attribute-selectors}
*
* `parseley` considers attribute presence and value selectors to be unrelated entities
* for simplicity of processing.
*/
export type AttributePresenceSelector = {
type: 'attrPresence';
name: string;
namespace: string | null;
specificity: Specificity;
};
/**
* Attribute value selector.
*
* {@link https://www.w3.org/TR/selectors/#attribute-selectors}
*
* `parseley` considers attribute presence and value selectors to be unrelated entities
* for simplicity of processing.
*/
export type AttributeValueSelector = {
type: 'attrValue';
name: string;
namespace: string | null;
matcher: '=' | '~=' | '|=' | '^=' | '$=' | '*=';
value: string;
modifier: 'i' | 's' | null;
specificity: Specificity;
};
/**
* Represents a selectors combinator with what's on the left side of it.
*
* {@link https://www.w3.org/TR/selectors/#combinators}
*/
export type Combinator = {
type: 'combinator';
combinator: ' ' | '+' | '>' | '~' | '||';
left: CompoundSelector;
specificity: Specificity;
};
/**
* Any thing representing a single condition on an element.
*
* {@link https://www.w3.org/TR/selectors/#simple}
*
* `parseley` deviates from the spec here by adding `Combinator` to the enumeration.
* This is done for simplicity of processing.
*
* Combinator effectively considered an extra condition on a specific element
* (*"have this kind of element in relation"*).
*/
export type SimpleSelector = UniversalSelector | TagSelector | ClassSelector | IdSelector | AttributePresenceSelector | AttributeValueSelector | Combinator;
/**
* Compound selector - a set of conditions describing a single element.
*
* {@link https://www.w3.org/TR/selectors/#compound}
*
* {@link https://www.w3.org/TR/selectors/#complex}
*
* Important note: due to the way `parseley` represents combinators,
* every compound selector is also a complex selector with everything
* connected from the left side.
* Specificity value also includes any extra weight added by the left side.
*
* If there is a combinator in the selector - it is guaranteed to be
* the last entry in the list of inner selectors.
*/
export type CompoundSelector = {
type: 'compound';
list: SimpleSelector[];
specificity: Specificity;
};
/**
* Represents a comma-separated list of compound selectors.
*
* {@link https://www.w3.org/TR/selectors/#selector-list}
*
* As this kind of selector can combine different ways to match elements,
* a single specificity value doesn't make sense for it and therefore absent.
*/
export type ListSelector = {
type: 'list';
list: CompoundSelector[];
};
/**
* Any kind of selector supported by `parseley`.
*/
export type Selector = ListSelector | CompoundSelector | SimpleSelector;