107 lines
3.4 KiB
JavaScript
107 lines
3.4 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.shouldHighlight = shouldHighlight;
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exports.getChalk = getChalk;
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exports.default = highlight;
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var _jsTokens = _interopRequireWildcard(require("js-tokens"));
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var _helperValidatorIdentifier = require("@babel/helper-validator-identifier");
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var _chalk = _interopRequireDefault(require("chalk"));
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
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function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
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function getDefs(chalk) {
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return {
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keyword: chalk.cyan,
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capitalized: chalk.yellow,
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jsx_tag: chalk.yellow,
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punctuator: chalk.yellow,
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number: chalk.magenta,
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string: chalk.green,
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regex: chalk.magenta,
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comment: chalk.grey,
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invalid: chalk.white.bgRed.bold
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};
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}
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const NEWLINE = /\r\n|[\n\r\u2028\u2029]/;
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const JSX_TAG = /^[a-z][\w-]*$/i;
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const BRACKET = /^[()[\]{}]$/;
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function getTokenType(match) {
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const [offset, text] = match.slice(-2);
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const token = (0, _jsTokens.matchToToken)(match);
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if (token.type === "name") {
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if ((0, _helperValidatorIdentifier.isKeyword)(token.value) || (0, _helperValidatorIdentifier.isReservedWord)(token.value)) {
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return "keyword";
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}
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if (JSX_TAG.test(token.value) && (text[offset - 1] === "<" || text.substr(offset - 2, 2) == "</")) {
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return "jsx_tag";
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}
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if (token.value[0] !== token.value[0].toLowerCase()) {
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return "capitalized";
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}
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}
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if (token.type === "punctuator" && BRACKET.test(token.value)) {
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return "bracket";
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}
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if (token.type === "invalid" && (token.value === "@" || token.value === "#")) {
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return "punctuator";
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}
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return token.type;
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}
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function highlightTokens(defs, text) {
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return text.replace(_jsTokens.default, function (...args) {
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const type = getTokenType(args);
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const colorize = defs[type];
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if (colorize) {
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return args[0].split(NEWLINE).map(str => colorize(str)).join("\n");
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} else {
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return args[0];
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}
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});
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}
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function shouldHighlight(options) {
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return _chalk.default.supportsColor || options.forceColor;
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}
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function getChalk(options) {
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let chalk = _chalk.default;
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if (options.forceColor) {
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chalk = new _chalk.default.constructor({
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enabled: true,
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level: 1
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});
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}
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return chalk;
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}
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function highlight(code, options = {}) {
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if (shouldHighlight(options)) {
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const chalk = getChalk(options);
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const defs = getDefs(chalk);
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return highlightTokens(defs, code);
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} else {
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return code;
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}
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}
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