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declare namespace postcssValueParser {
interface BaseNode {
/**
* The offset, inclusive, inside the CSS value at which the node starts.
*/
sourceIndex: number;
/**
* The offset, exclusive, inside the CSS value at which the node ends.
*/
sourceEndIndex: number;
/**
* The node's characteristic value
*/
value: string;
}
interface ClosableNode {
/**
* Whether the parsed CSS value ended before the node was properly closed
*/
unclosed?: true;
}
interface AdjacentAwareNode {
/**
* The token at the start of the node
*/
before: string;
/**
* The token at the end of the node
*/
after: string;
}
interface CommentNode extends BaseNode, ClosableNode {
type: "comment";
}
interface DivNode extends BaseNode, AdjacentAwareNode {
type: "div";
}
interface FunctionNode extends BaseNode, ClosableNode, AdjacentAwareNode {
type: "function";
/**
* Nodes inside the function
*/
nodes: Node[];
}
interface SpaceNode extends BaseNode {
type: "space";
}
interface StringNode extends BaseNode, ClosableNode {
type: "string";
/**
* The quote type delimiting the string
*/
quote: '"' | "'";
}
interface UnicodeRangeNode extends BaseNode {
type: "unicode-range";
}
interface WordNode extends BaseNode {
type: "word";
}
/**
* Any node parsed from a CSS value
*/
type Node =
| CommentNode
| DivNode
| FunctionNode
| SpaceNode
| StringNode
| UnicodeRangeNode
| WordNode;
interface CustomStringifierCallback {
/**
* @param node The node to stringify
* @returns The serialized CSS representation of the node
*/
(nodes: Node): string | undefined;
}
interface WalkCallback {
/**
* @param node The currently visited node
* @param index The index of the node in the series of parsed nodes
* @param nodes The series of parsed nodes
* @returns Returning `false` will prevent traversal of descendant nodes (only applies if `bubble` was set to `true` in the `walk()` call)
*/
(node: Node, index: number, nodes: Node[]): void | boolean;
}
/**
* A CSS dimension, decomposed into its numeric and unit parts
*/
interface Dimension {
number: string;
unit: string;
}
/**
* A wrapper around a parsed CSS value that allows for inspecting and walking nodes
*/
interface ParsedValue {
/**
* The series of parsed nodes
*/
nodes: Node[];
/**
* Walk all parsed nodes, applying a callback
*
* @param callback A visitor callback that will be executed for each node
* @param bubble When set to `true`, walking will be done inside-out instead of outside-in
*/
walk(callback: WalkCallback, bubble?: boolean): this;
}
interface ValueParser {
/**
* Decompose a CSS dimension into its numeric and unit part
*
* @param value The dimension to decompose
* @returns An object representing `number` and `unit` part of the dimension or `false` if the decomposing fails
*/
unit(value: string): Dimension | false;
/**
* Serialize a series of nodes into a CSS value
*
* @param nodes The nodes to stringify
* @param custom A custom stringifier callback
* @returns The generated CSS value
*/
stringify(nodes: Node | Node[], custom?: CustomStringifierCallback): string;
/**
* Walk a series of nodes, applying a callback
*
* @param nodes The nodes to walk
* @param callback A visitor callback that will be executed for each node
* @param bubble When set to `true`, walking will be done inside-out instead of outside-in
*/
walk(nodes: Node[], callback: WalkCallback, bubble?: boolean): void;
/**
* Parse a CSS value into a series of nodes to operate on
*
* @param value The value to parse
*/
new (value: string): ParsedValue;
/**
* Parse a CSS value into a series of nodes to operate on
*
* @param value The value to parse
*/
(value: string): ParsedValue;
}
}
declare const postcssValueParser: postcssValueParser.ValueParser;
export = postcssValueParser;
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