141 lines
3.7 KiB
JavaScript
141 lines
3.7 KiB
JavaScript
"use strict";
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exports.__esModule = true;
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exports.default = function (rawLines, lineNumber, colNumber) {
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var opts = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
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colNumber = Math.max(colNumber, 0);
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var highlighted = opts.highlightCode && _chalk2.default.supportsColor || opts.forceColor;
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var chalk = _chalk2.default;
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if (opts.forceColor) {
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chalk = new _chalk2.default.constructor({ enabled: true });
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}
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var maybeHighlight = function maybeHighlight(chalkFn, string) {
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return highlighted ? chalkFn(string) : string;
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};
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var defs = getDefs(chalk);
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if (highlighted) rawLines = highlight(defs, rawLines);
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var linesAbove = opts.linesAbove || 2;
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var linesBelow = opts.linesBelow || 3;
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var lines = rawLines.split(NEWLINE);
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var start = Math.max(lineNumber - (linesAbove + 1), 0);
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var end = Math.min(lines.length, lineNumber + linesBelow);
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if (!lineNumber && !colNumber) {
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start = 0;
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end = lines.length;
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}
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var numberMaxWidth = String(end).length;
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var frame = lines.slice(start, end).map(function (line, index) {
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var number = start + 1 + index;
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var paddedNumber = (" " + number).slice(-numberMaxWidth);
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var gutter = " " + paddedNumber + " | ";
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if (number === lineNumber) {
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var markerLine = "";
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if (colNumber) {
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var markerSpacing = line.slice(0, colNumber - 1).replace(/[^\t]/g, " ");
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markerLine = ["\n ", maybeHighlight(defs.gutter, gutter.replace(/\d/g, " ")), markerSpacing, maybeHighlight(defs.marker, "^")].join("");
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}
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return [maybeHighlight(defs.marker, ">"), maybeHighlight(defs.gutter, gutter), line, markerLine].join("");
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} else {
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return " " + maybeHighlight(defs.gutter, gutter) + line;
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}
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}).join("\n");
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if (highlighted) {
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return chalk.reset(frame);
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} else {
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return frame;
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}
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};
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var _jsTokens = require("js-tokens");
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var _jsTokens2 = _interopRequireDefault(_jsTokens);
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var _esutils = require("esutils");
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var _esutils2 = _interopRequireDefault(_esutils);
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var _chalk = require("chalk");
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var _chalk2 = _interopRequireDefault(_chalk);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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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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gutter: chalk.grey,
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marker: chalk.red.bold
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};
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}
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var NEWLINE = /\r\n|[\n\r\u2028\u2029]/;
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var JSX_TAG = /^[a-z][\w-]*$/i;
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var BRACKET = /^[()\[\]{}]$/;
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function getTokenType(match) {
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var _match$slice = match.slice(-2),
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offset = _match$slice[0],
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text = _match$slice[1];
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var token = (0, _jsTokens.matchToToken)(match);
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if (token.type === "name") {
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if (_esutils2.default.keyword.isReservedWordES6(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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return token.type;
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}
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function highlight(defs, text) {
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return text.replace(_jsTokens2.default, function () {
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for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
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args[_key] = arguments[_key];
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}
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var type = getTokenType(args);
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var colorize = defs[type];
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if (colorize) {
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return args[0].split(NEWLINE).map(function (str) {
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return colorize(str);
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}).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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module.exports = exports["default"]; |