printer-notifications/node_modules/vite-plugin-tailwind-purgecss/dist/index.mjs

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2023-11-13 21:10:04 +00:00
// src/index.ts
import { PurgeCSS } from "purgecss";
// src/extractors/regex.ts
var REGEX_SPECIAL = /[\\^$.*+?()[\]{}|]/g;
var REGEX_HAS_SPECIAL = RegExp(REGEX_SPECIAL.source);
function toSource(source) {
source = Array.isArray(source) ? source : [source];
source = source.map((item) => item instanceof RegExp ? item.source : item);
return source.join("");
}
function pattern(source) {
return new RegExp(toSource(source), "g");
}
function any(sources) {
return `(?:${sources.map(toSource).join("|")})`;
}
function optional(source) {
return `(?:${toSource(source)})?`;
}
// src/extractors/default-extractor.ts
function defaultExtractor() {
let patterns = Array.from(buildRegExps());
return (content) => {
let results = [];
for (let pattern2 of patterns) {
results = [...results, ...content.match(pattern2) ?? []];
}
return results.filter((v) => v !== void 0).map(clipAtBalancedParens);
};
}
function* buildRegExps() {
let separator = ":";
let prefix = "";
let utility = any([
/\[[^\s:'"`]+:[^\s\[\]]+\]/,
/\[[^\s:'"`]+:[^\s]+?\[[^\s]+\][^\s]+?\]/,
pattern([
/-?(?:\w+)/,
optional(
any([
pattern([
/-(?:\w+-)*\[[^\s:]+\]/,
/(?![{([]])/,
/(?:\/[^\s'"`\\><$]*)?/
]),
pattern([
/-(?:\w+-)*\[[^\s]+\]/,
/(?![{([]])/,
/(?:\/[^\s'"`\\$]*)?/
]),
/[-\/][^\s'"`\\$={><]*/
])
)
])
]);
let variantPatterns = [
any([
pattern([/@\[[^\s"'`]+\](\/[^\s"'`]+)?/, separator]),
pattern([/([^\s"'`\[\\]+-)?\[[^\s"'`]+\]/, separator]),
pattern([/[^\s"'`\[\\]+/, separator])
]),
any([
pattern([/([^\s"'`\[\\]+-)?\[[^\s`]+\]/, separator]),
pattern([/[^\s`\[\\]+/, separator])
])
];
for (const variantPattern of variantPatterns) {
yield pattern([
"((?=((",
variantPattern,
")+))\\2)?",
/!?/,
prefix,
utility
]);
}
yield /[^<>"'`\s.(){}[\]#=%$]*[^<>"'`\s.(){}[\]#=%:$]/g;
}
var SPECIALS = /([\[\]'"`])([^\[\]'"`])?/g;
var ALLOWED_CLASS_CHARACTERS = /[^"'`\s<>\]]+/;
function clipAtBalancedParens(input) {
if (!input.includes("-[")) {
return input;
}
let depth = 0;
let openStringTypes = [];
let matches = input.matchAll(SPECIALS);
const matched = Array.from(matches).flatMap((match) => {
const [, ...groups] = match;
return groups.map(
(group, idx) => Object.assign([], match, {
index: match.index + idx,
0: group
})
);
});
for (let match of matched) {
let char = match[0];
let inStringType = openStringTypes.at(-1);
if (char === inStringType) {
openStringTypes.pop();
} else if (char === "'" || char === '"' || char === "`") {
openStringTypes.push(char);
}
if (inStringType) {
continue;
} else if (char === "[") {
depth++;
continue;
} else if (char === "]") {
depth--;
continue;
}
if (depth < 0) {
return input.substring(0, match.index - 1);
}
if (depth === 0 && !ALLOWED_CLASS_CHARACTERS.test(char)) {
return input.substring(0, match.index);
}
}
return input;
}
// src/index.ts
import { walk } from "estree-walker";
import { join } from "path";
var EXT_CSS = /\.(css)$/;
var MAX_STRING_LITERAL_LENGTH = 5e4;
function purgeCss(purgeOptions) {
var _a;
let viteConfig;
const selectors = /* @__PURE__ */ new Set();
const standard = [
"*",
"html",
"body",
/aria-current/,
/^\:[-a-z]+$/,
...((_a = purgeOptions == null ? void 0 : purgeOptions.safelist) == null ? void 0 : _a.standard) ?? []
];
const extractor = (purgeOptions == null ? void 0 : purgeOptions.defaultExtractor) ?? defaultExtractor();
const moduleIds = /* @__PURE__ */ new Set();
return {
name: "vite-plugin-tailwind-purgecss",
apply: "build",
enforce: "post",
load(id) {
if (EXT_CSS.test(id))
return;
moduleIds.add(id);
},
configResolved(config) {
viteConfig = config;
},
async generateBundle(options, bundle) {
var _a2;
const assets = {};
for (const id of moduleIds) {
const info = this.getModuleInfo(id);
if ((info == null ? void 0 : info.isIncluded) !== true || info.code === null)
continue;
const ast = this.parse(info.code);
walk(ast, {
enter(node, parent, key, index) {
if (node.type === "Literal" && typeof node.value === "string") {
node.value.split(/\s+/).forEach((word) => {
if (word.length < MAX_STRING_LITERAL_LENGTH) {
extractor(word).forEach((selector) => selectors.add(selector));
} else
selectors.add(word);
});
}
if (node.type === "Identifier") {
selectors.add(node.name);
}
if (node.type === "TemplateElement") {
const value = node.value.cooked ?? node.value.raw;
value.split(/\s+/).forEach((word) => {
if (word.length < MAX_STRING_LITERAL_LENGTH) {
extractor(word).forEach((selector) => selectors.add(selector));
} else
selectors.add(word);
});
}
}
});
}
for (const [fileName, chunkOrAsset] of Object.entries(bundle)) {
if (chunkOrAsset.type === "asset" && EXT_CSS.test(fileName)) {
assets[fileName] = chunkOrAsset;
}
}
for (const selector of selectors) {
standard.push(selector);
}
for (const [fileName, asset] of Object.entries(assets)) {
const purgeCSSResult = await new PurgeCSS().purge({
...purgeOptions,
content: [join(viteConfig.root, "**/*.html"), ...(purgeOptions == null ? void 0 : purgeOptions.content) ?? []],
css: [{ raw: asset.source.trim(), name: fileName }],
rejected: true,
rejectedCss: true,
safelist: {
...purgeOptions == null ? void 0 : purgeOptions.safelist,
standard,
greedy: [/svelte-/, /data-theme/, ...((_a2 = purgeOptions == null ? void 0 : purgeOptions.safelist) == null ? void 0 : _a2.greedy) ?? []]
}
});
if (purgeCSSResult[0]) {
delete bundle[asset.fileName];
this.emitFile({
...asset,
type: "asset",
source: purgeCSSResult[0].css
});
}
}
}
};
}
var src_default = purgeCss;
export {
src_default as default,
purgeCss
};
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