blob: b0d1be7f553b64c5abe292db5339741ba29ace6f [file] [log] [blame]
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.shouldHighlight = shouldHighlight;
exports.getChalk = getChalk;
exports.default = highlight;
var _jsTokens = _interopRequireWildcard(require("js-tokens"));
var _helperValidatorIdentifier = require("@babel/helper-validator-identifier");
var _chalk = _interopRequireDefault(require("chalk"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
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; }
function getDefs(chalk) {
return {
keyword: chalk.cyan,
capitalized: chalk.yellow,
jsx_tag: chalk.yellow,
punctuator: chalk.yellow,
number: chalk.magenta,
string: chalk.green,
regex: chalk.magenta,
comment: chalk.grey,
invalid: chalk.white.bgRed.bold
};
}
const NEWLINE = /\r\n|[\n\r\u2028\u2029]/;
const JSX_TAG = /^[a-z][\w-]*$/i;
const BRACKET = /^[()[\]{}]$/;
function getTokenType(match) {
const [offset, text] = match.slice(-2);
const token = (0, _jsTokens.matchToToken)(match);
if (token.type === "name") {
if ((0, _helperValidatorIdentifier.isKeyword)(token.value) || (0, _helperValidatorIdentifier.isReservedWord)(token.value)) {
return "keyword";
}
if (JSX_TAG.test(token.value) && (text[offset - 1] === "<" || text.substr(offset - 2, 2) == "</")) {
return "jsx_tag";
}
if (token.value[0] !== token.value[0].toLowerCase()) {
return "capitalized";
}
}
if (token.type === "punctuator" && BRACKET.test(token.value)) {
return "bracket";
}
if (token.type === "invalid" && (token.value === "@" || token.value === "#")) {
return "punctuator";
}
return token.type;
}
function highlightTokens(defs, text) {
return text.replace(_jsTokens.default, function (...args) {
const type = getTokenType(args);
const colorize = defs[type];
if (colorize) {
return args[0].split(NEWLINE).map(str => colorize(str)).join("\n");
} else {
return args[0];
}
});
}
function shouldHighlight(options) {
return _chalk.default.supportsColor || options.forceColor;
}
function getChalk(options) {
let chalk = _chalk.default;
if (options.forceColor) {
chalk = new _chalk.default.constructor({
enabled: true,
level: 1
});
}
return chalk;
}
function highlight(code, options = {}) {
if (shouldHighlight(options)) {
const chalk = getChalk(options);
const defs = getDefs(chalk);
return highlightTokens(defs, code);
} else {
return code;
}
}