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import * as postcss from "postcss";
interface RawContent<T = string> {
extension: string;
raw: T;
}
interface RawCSS {
raw: string;
}
interface ExtractorResultDetailed {
attributes: {
names: string[];
values: string[];
};
classes: string[];
ids: string[];
tags: string[];
undetermined: string[];
}
type ExtractorResult = ExtractorResultDetailed | string[];
type ExtractorFunction<T = string> = (content: T) => ExtractorResult;
interface Extractors {
extensions: string[];
extractor: ExtractorFunction;
}
type StringRegExpArray = Array<RegExp | string>;
type ComplexSafelist = {
standard?: StringRegExpArray;
deep?: RegExp[];
greedy?: RegExp[];
variables?: StringRegExpArray;
keyframes?: StringRegExpArray;
};
type UserDefinedSafelist = StringRegExpArray | ComplexSafelist;
interface UserDefinedOptions {
content: Array<string | RawContent>;
css: Array<string | RawCSS>;
defaultExtractor?: ExtractorFunction;
extractors?: Array<Extractors>;
fontFace?: boolean;
keyframes?: boolean;
output?: string;
rejected?: boolean;
stdin?: boolean;
stdout?: boolean;
variables?: boolean;
safelist?: UserDefinedSafelist;
blocklist?: StringRegExpArray;
skippedContentGlobs?: Array<string>;
dynamicAttributes?: string[];
}
interface Options {
content: Array<string | RawContent>;
css: Array<string | RawCSS>;
defaultExtractor: ExtractorFunction;
extractors: Array<Extractors>;
fontFace: boolean;
keyframes: boolean;
output?: string;
rejected: boolean;
stdin: boolean;
stdout: boolean;
variables: boolean;
safelist: Required<ComplexSafelist>;
blocklist: StringRegExpArray;
skippedContentGlobs: Array<string>;
dynamicAttributes: string[];
}
interface ResultPurge {
css: string;
file?: string;
rejected?: string[];
}
declare class ExtractorResultSets {
private undetermined;
private attrNames;
private attrValues;
private classes;
private ids;
private tags;
constructor(er: ExtractorResult);
merge(that: ExtractorResult | ExtractorResultSets): this;
hasAttrName(name: string): boolean;
private someAttrValue;
hasAttrPrefix(prefix: string): boolean;
hasAttrSuffix(suffix: string): boolean;
hasAttrSubstr(substr: string): boolean;
hasAttrValue(value: string): boolean;
hasClass(name: string): boolean;
hasId(id: string): boolean;
hasTag(tag: string): boolean;
}
declare const defaultOptions: Options;
declare function standardizeSafelist(userDefinedSafelist?: UserDefinedSafelist): Required<ComplexSafelist>;
/**
* Load the configuration file from the path
* @param configFile Path of the config file
*/
declare function setOptions(configFile?: string): Promise<Options>;
/**
* Merge two extractor selectors
* @param extractorSelectorsA extractor selectors A
* @param extractorSelectorsB extractor selectors B
*/
declare function mergeExtractorSelectors(...extractors: (ExtractorResultDetailed | ExtractorResultSets)[]): ExtractorResultSets;
declare class PurgeCSS {
private ignore;
private atRules;
private usedAnimations;
private usedFontFaces;
selectorsRemoved: Set<string>;
private variablesStructure;
options: Options;
private collectDeclarationsData;
/**
* Get the extractor corresponding to the extension file
* @param filename Name of the file
* @param extractors Array of extractors definition
*/
/**
* Get the extractor corresponding to the extension file
* @param filename Name of the file
* @param extractors Array of extractors definition
*/
private getFileExtractor;
/**
* Extract the selectors present in the files using a purgecss extractor
* @param files Array of files path or glob pattern
* @param extractors Array of extractors
*/
/**
* Extract the selectors present in the files using a purgecss extractor
* @param files Array of files path or glob pattern
* @param extractors Array of extractors
*/
extractSelectorsFromFiles(files: string[], extractors: Extractors[]): Promise<ExtractorResultSets>;
/**
* Extract the selectors present in the passed string using a PurgeCSS extractor
* @param content Array of content
* @param extractors Array of extractors
*/
/**
* Extract the selectors present in the passed string using a PurgeCSS extractor
* @param content Array of content
* @param extractors Array of extractors
*/
extractSelectorsFromString(content: RawContent[], extractors: Extractors[]): Promise<ExtractorResultSets>;
/**
* Evaluate at-rule and register it for future reference
* @param node node of postcss AST
*/
/**
* Evaluate at-rule and register it for future reference
* @param node node of postcss AST
*/
private evaluateAtRule;
/**
* Evaluate css selector and decide if it should be removed or not
* @param node node of postcss AST
* @param selectors selectors used in content files
*/
/**
* Evaluate css selector and decide if it should be removed or not
* @param node node of postcss AST
* @param selectors selectors used in content files
*/
private evaluateRule;
/**
* Get the purged version of the css based on the files
* @param cssOptions css options, files or raw strings
* @param selectors set of extracted css selectors
*/
/**
* Get the purged version of the css based on the files
* @param cssOptions css options, files or raw strings
* @param selectors set of extracted css selectors
*/
getPurgedCSS(cssOptions: Array<string | RawCSS>, selectors: ExtractorResultSets): Promise<ResultPurge[]>;
/**
* Check if the keyframe is safelisted with the option safelist keyframes
* @param keyframesName name of the keyframe animation
*/
/**
* Check if the keyframe is safelisted with the option safelist keyframes
* @param keyframesName name of the keyframe animation
*/
private isKeyframesSafelisted;
/**
* Check if the selector is blocklisted with the option blocklist
* @param selector css selector
*/
/**
* Check if the selector is blocklisted with the option blocklist
* @param selector css selector
*/
private isSelectorBlocklisted;
/**
* Check if the selector is safelisted with the option safelist standard
* @param selector css selector
*/
/**
* Check if the selector is safelisted with the option safelist standard
* @param selector css selector
*/
private isSelectorSafelisted;
/**
* Check if the selector is safelisted with the option safelist deep
* @param selector selector
*/
/**
* Check if the selector is safelisted with the option safelist deep
* @param selector selector
*/
private isSelectorSafelistedDeep;
/**
* Check if the selector is safelisted with the option safelist greedy
* @param selector selector
*/
/**
* Check if the selector is safelisted with the option safelist greedy
* @param selector selector
*/
private isSelectorSafelistedGreedy;
/**
* Remove unused css
* @param userOptions PurgeCSS options
*/
/**
* Remove unused css
* @param userOptions PurgeCSS options
*/
purge(userOptions: UserDefinedOptions | string | undefined): Promise<ResultPurge[]>;
/**
* Remove unused CSS variables
*/
/**
* Remove unused CSS variables
*/
removeUnusedCSSVariables(): void;
/**
* Remove unused font-faces
*/
/**
* Remove unused font-faces
*/
removeUnusedFontFaces(): void;
/**
* Remove unused keyframes
*/
/**
* Remove unused keyframes
*/
removeUnusedKeyframes(): void;
/**
* Transform a selector node into a string
*/
/**
* Transform a selector node into a string
*/
private getSelectorValue;
/**
* Determine if the selector should be kept, based on the selectors found in the files
* @param selector set of css selectors found in the content files or string
* @param selectorsFromExtractor selectors in the css rule
*/
/**
* Determine if the selector should be kept, based on the selectors found in the files
* @param selector set of css selectors found in the content files or string
* @param selectorsFromExtractor selectors in the css rule
*/
private shouldKeepSelector;
/**
* Walk through the CSS AST and remove unused CSS
* @param root root node of the postcss AST
* @param selectors selectors used in content files
*/
/**
* Walk through the CSS AST and remove unused CSS
* @param root root node of the postcss AST
* @param selectors selectors used in content files
*/
walkThroughCSS(root: postcss.Root, selectors: ExtractorResultSets): void;
}
export { PurgeCSS as default, PurgeCSS, defaultOptions, standardizeSafelist, setOptions, mergeExtractorSelectors };