// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license. // Copyright Joyent, Inc. and other Node contributors. // // Permission is hereby granted, free of charge, to any person obtaining a // copy of this software and associated documentation files (the // "Software"), to deal in the Software without restriction, including // without limitation the rights to use, copy, modify, merge, publish, // distribute, sublicense, and/or sell copies of the Software, and to permit // persons to whom the Software is furnished to do so, subject to the // following conditions: // // The above copyright notice and this permission notice shall be included // in all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN // NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE // USE OR OTHER DEALINGS IN THE SOFTWARE. // TODO(petamoriken): enable prefer-primordials for node polyfills // deno-lint-ignore-file prefer-primordials import { validateObject, validateOneOf, validateString, } from "ext:deno_node/internal/validators.mjs"; import { codes } from "ext:deno_node/internal/error_codes.ts"; import { colors, createStylizeWithColor, formatBigInt, formatNumber, formatValue, styles, } from "ext:deno_console/01_console.js"; // Set Graphics Rendition https://en.wikipedia.org/wiki/ANSI_escape_code#graphics // Each color consists of an array with the color code as first entry and the // reset code as second entry. const defaultFG = 39; const defaultBG = 49; inspect.colors = { reset: [0, 0], bold: [1, 22], dim: [2, 22], // Alias: faint italic: [3, 23], underline: [4, 24], blink: [5, 25], // Swap foreground and background colors inverse: [7, 27], // Alias: swapcolors, swapColors hidden: [8, 28], // Alias: conceal strikethrough: [9, 29], // Alias: strikeThrough, crossedout, crossedOut doubleunderline: [21, 24], // Alias: doubleUnderline black: [30, defaultFG], red: [31, defaultFG], green: [32, defaultFG], yellow: [33, defaultFG], blue: [34, defaultFG], magenta: [35, defaultFG], cyan: [36, defaultFG], white: [37, defaultFG], bgBlack: [40, defaultBG], bgRed: [41, defaultBG], bgGreen: [42, defaultBG], bgYellow: [43, defaultBG], bgBlue: [44, defaultBG], bgMagenta: [45, defaultBG], bgCyan: [46, defaultBG], bgWhite: [47, defaultBG], framed: [51, 54], overlined: [53, 55], gray: [90, defaultFG], // Alias: grey, blackBright redBright: [91, defaultFG], greenBright: [92, defaultFG], yellowBright: [93, defaultFG], blueBright: [94, defaultFG], magentaBright: [95, defaultFG], cyanBright: [96, defaultFG], whiteBright: [97, defaultFG], bgGray: [100, defaultBG], // Alias: bgGrey, bgBlackBright bgRedBright: [101, defaultBG], bgGreenBright: [102, defaultBG], bgYellowBright: [103, defaultBG], bgBlueBright: [104, defaultBG], bgMagentaBright: [105, defaultBG], bgCyanBright: [106, defaultBG], bgWhiteBright: [107, defaultBG], }; function defineColorAlias(target, alias) { Object.defineProperty(inspect.colors, alias, { get() { return this[target]; }, set(value) { this[target] = value; }, configurable: true, enumerable: false, }); } defineColorAlias("gray", "grey"); defineColorAlias("gray", "blackBright"); defineColorAlias("bgGray", "bgGrey"); defineColorAlias("bgGray", "bgBlackBright"); defineColorAlias("dim", "faint"); defineColorAlias("strikethrough", "crossedout"); defineColorAlias("strikethrough", "strikeThrough"); defineColorAlias("strikethrough", "crossedOut"); defineColorAlias("hidden", "conceal"); defineColorAlias("inverse", "swapColors"); defineColorAlias("inverse", "swapcolors"); defineColorAlias("doubleunderline", "doubleUnderline"); // TODO(BridgeAR): Add function style support for more complex styles. // Don't use 'blue' not visible on cmd.exe inspect.styles = Object.assign(Object.create(null), { special: "cyan", number: "yellow", bigint: "yellow", boolean: "yellow", undefined: "grey", null: "bold", string: "green", symbol: "green", date: "magenta", // "name": intentionally not styling // TODO(BridgeAR): Highlight regular expressions properly. regexp: "red", module: "underline", }); const inspectDefaultOptions = { indentationLvl: 0, currentDepth: 0, stylize: stylizeNoColor, showHidden: false, depth: 2, colors: false, showProxy: false, breakLength: 80, escapeSequences: true, compact: 3, sorted: false, getters: false, // node only maxArrayLength: 100, maxStringLength: 10000, // deno: strAbbreviateSize: 100 customInspect: true, // deno only /** You can override the quotes preference in inspectString. * Used by util.inspect() */ // TODO(kt3k): Consider using symbol as a key to hide this from the public // API. quotes: ["'", '"', "`"], iterableLimit: Infinity, // similar to node's maxArrayLength, but doesn't only apply to arrays trailingComma: false, inspect, // TODO(@crowlKats): merge into indentationLvl indentLevel: 0, }; /** * Echos the value of any input. Tries to print the value out * in the best way possible given the different types. */ /* Legacy: value, showHidden, depth, colors */ export function inspect(value, opts) { // Default options const ctx = { budget: {}, seen: [], ...inspectDefaultOptions, }; if (arguments.length > 1) { // Legacy... if (arguments.length > 2) { if (arguments[2] !== undefined) { ctx.depth = arguments[2]; } if (arguments.length > 3 && arguments[3] !== undefined) { ctx.colors = arguments[3]; } } // Set user-specified options if (typeof opts === "boolean") { ctx.showHidden = opts; } else if (opts) { const optKeys = Object.keys(opts); for (let i = 0; i < optKeys.length; ++i) { const key = optKeys[i]; // TODO(BridgeAR): Find a solution what to do about stylize. Either make // this function public or add a new API with a similar or better // functionality. if ( // deno-lint-ignore no-prototype-builtins inspectDefaultOptions.hasOwnProperty(key) || key === "stylize" ) { ctx[key] = opts[key]; } else if (ctx.userOptions === undefined) { // This is required to pass through the actual user input. ctx.userOptions = opts; } } } } if (ctx.colors) { ctx.stylize = createStylizeWithColor(inspect.styles, inspect.colors); } if (ctx.maxArrayLength === null) ctx.maxArrayLength = Infinity; if (ctx.maxStringLength === null) ctx.maxStringLength = Infinity; return formatValue(ctx, value, 0); } const customInspectSymbol = Symbol.for("nodejs.util.inspect.custom"); inspect.custom = customInspectSymbol; Object.defineProperty(inspect, "defaultOptions", { get() { return inspectDefaultOptions; }, set(options) { validateObject(options, "options"); return Object.assign(inspectDefaultOptions, options); }, }); function stylizeNoColor(str) { return str; } const builtInObjects = new Set( Object.getOwnPropertyNames(globalThis).filter((e) => /^[A-Z][a-zA-Z0-9]+$/.test(e) ), ); // Regex used for ansi escape code splitting // Adopted from https://github.com/chalk/ansi-regex/blob/HEAD/index.js // License: MIT, authors: @sindresorhus, Qix-, arjunmehta and LitoMore // Matches all ansi escape code sequences in a string const ansiPattern = "[\\u001B\\u009B][[\\]()#;?]*" + "(?:(?:(?:(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]+)*" + "|[a-zA-Z\\d]+(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]*)*)?\\u0007)" + "|(?:(?:\\d{1,4}(?:;\\d{0,4})*)?[\\dA-PR-TZcf-ntqry=><~]))"; const ansi = new RegExp(ansiPattern, "g"); /** * Returns the number of columns required to display the given string. */ export function getStringWidth(str, removeControlChars = true) { let width = 0; if (removeControlChars) { str = stripVTControlCharacters(str); } str = str.normalize("NFC"); for (const char of str[Symbol.iterator]()) { const code = char.codePointAt(0); if (isFullWidthCodePoint(code)) { width += 2; } else if (!isZeroWidthCodePoint(code)) { width++; } } return width; } /** * Returns true if the character represented by a given * Unicode code point is full-width. Otherwise returns false. */ const isFullWidthCodePoint = (code) => { // Code points are partially derived from: // https://www.unicode.org/Public/UNIDATA/EastAsianWidth.txt return code >= 0x1100 && ( code <= 0x115f || // Hangul Jamo code === 0x2329 || // LEFT-POINTING ANGLE BRACKET code === 0x232a || // RIGHT-POINTING ANGLE BRACKET // CJK Radicals Supplement .. Enclosed CJK Letters and Months (code >= 0x2e80 && code <= 0x3247 && code !== 0x303f) || // Enclosed CJK Letters and Months .. CJK Unified Ideographs Extension A (code >= 0x3250 && code <= 0x4dbf) || // CJK Unified Ideographs .. Yi Radicals (code >= 0x4e00 && code <= 0xa4c6) || // Hangul Jamo Extended-A (code >= 0xa960 && code <= 0xa97c) || // Hangul Syllables (code >= 0xac00 && code <= 0xd7a3) || // CJK Compatibility Ideographs (code >= 0xf900 && code <= 0xfaff) || // Vertical Forms (code >= 0xfe10 && code <= 0xfe19) || // CJK Compatibility Forms .. Small Form Variants (code >= 0xfe30 && code <= 0xfe6b) || // Halfwidth and Fullwidth Forms (code >= 0xff01 && code <= 0xff60) || (code >= 0xffe0 && code <= 0xffe6) || // Kana Supplement (code >= 0x1b000 && code <= 0x1b001) || // Enclosed Ideographic Supplement (code >= 0x1f200 && code <= 0x1f251) || // Miscellaneous Symbols and Pictographs 0x1f300 - 0x1f5ff // Emoticons 0x1f600 - 0x1f64f (code >= 0x1f300 && code <= 0x1f64f) || // CJK Unified Ideographs Extension B .. Tertiary Ideographic Plane (code >= 0x20000 && code <= 0x3fffd) ); }; const isZeroWidthCodePoint = (code) => { return code <= 0x1F || // C0 control codes (code >= 0x7F && code <= 0x9F) || // C1 control codes (code >= 0x300 && code <= 0x36F) || // Combining Diacritical Marks (code >= 0x200B && code <= 0x200F) || // Modifying Invisible Characters // Combining Diacritical Marks for Symbols (code >= 0x20D0 && code <= 0x20FF) || (code >= 0xFE00 && code <= 0xFE0F) || // Variation Selectors (code >= 0xFE20 && code <= 0xFE2F) || // Combining Half Marks (code >= 0xE0100 && code <= 0xE01EF); // Variation Selectors }; function hasBuiltInToString(value) { // TODO(wafuwafu13): Implement // // Prevent triggering proxy traps. // const getFullProxy = false; // const proxyTarget = getProxyDetails(value, getFullProxy); const proxyTarget = undefined; if (proxyTarget !== undefined) { value = proxyTarget; } // Count objects that have no `toString` function as built-in. if (typeof value.toString !== "function") { return true; } // The object has a own `toString` property. Thus it's not a built-in one. if (Object.prototype.hasOwnProperty.call(value, "toString")) { return false; } // Find the object that has the `toString` property as own property in the // prototype chain. let pointer = value; do { pointer = Object.getPrototypeOf(pointer); } while (!Object.prototype.hasOwnProperty.call(pointer, "toString")); // Check closer if the object is a built-in. const descriptor = Object.getOwnPropertyDescriptor(pointer, "constructor"); return descriptor !== undefined && typeof descriptor.value === "function" && builtInObjects.has(descriptor.value.name); } const firstErrorLine = (error) => error.message.split("\n", 1)[0]; let CIRCULAR_ERROR_MESSAGE; function tryStringify(arg) { try { return JSON.stringify(arg); } catch (err) { // Populate the circular error message lazily if (!CIRCULAR_ERROR_MESSAGE) { try { const a = {}; a.a = a; JSON.stringify(a); } catch (circularError) { CIRCULAR_ERROR_MESSAGE = firstErrorLine(circularError); } } if ( err.name === "TypeError" && firstErrorLine(err) === CIRCULAR_ERROR_MESSAGE ) { return "[Circular]"; } throw err; } } export function format(...args) { return formatWithOptionsInternal(undefined, args); } export function formatWithOptions(inspectOptions, ...args) { if (typeof inspectOptions !== "object" || inspectOptions === null) { throw new codes.ERR_INVALID_ARG_TYPE( "inspectOptions", "object", inspectOptions, ); } return formatWithOptionsInternal(inspectOptions, args); } function formatNumberNoColor(number, options) { return formatNumber( stylizeNoColor, number, options?.numericSeparator ?? inspectDefaultOptions.numericSeparator, ); } function formatBigIntNoColor(bigint, options) { return formatBigInt( stylizeNoColor, bigint, options?.numericSeparator ?? inspectDefaultOptions.numericSeparator, ); } function formatWithOptionsInternal(inspectOptions, args) { const first = args[0]; let a = 0; let str = ""; let join = ""; if (typeof first === "string") { if (args.length === 1) { return first; } let tempStr; let lastPos = 0; for (let i = 0; i < first.length - 1; i++) { if (first.charCodeAt(i) === 37) { // '%' const nextChar = first.charCodeAt(++i); if (a + 1 !== args.length) { switch (nextChar) { // deno-lint-ignore no-case-declarations case 115: // 's' const tempArg = args[++a]; if (typeof tempArg === "number") { tempStr = formatNumberNoColor(tempArg, inspectOptions); } else if (typeof tempArg === "bigint") { tempStr = formatBigIntNoColor(tempArg, inspectOptions); } else if ( typeof tempArg !== "object" || tempArg === null || !hasBuiltInToString(tempArg) ) { tempStr = String(tempArg); } else { tempStr = inspect(tempArg, { ...inspectOptions, compact: 3, colors: false, depth: 0, }); } break; case 106: // 'j' tempStr = tryStringify(args[++a]); break; // deno-lint-ignore no-case-declarations case 100: // 'd' const tempNum = args[++a]; if (typeof tempNum === "bigint") { tempStr = formatBigIntNoColor(tempNum, inspectOptions); } else if (typeof tempNum === "symbol") { tempStr = "NaN"; } else { tempStr = formatNumberNoColor(Number(tempNum), inspectOptions); } break; case 79: // 'O' tempStr = inspect(args[++a], inspectOptions); break; case 111: // 'o' tempStr = inspect(args[++a], { ...inspectOptions, showHidden: true, showProxy: true, depth: 4, }); break; // deno-lint-ignore no-case-declarations case 105: // 'i' const tempInteger = args[++a]; if (typeof tempInteger === "bigint") { tempStr = formatBigIntNoColor(tempInteger, inspectOptions); } else if (typeof tempInteger === "symbol") { tempStr = "NaN"; } else { tempStr = formatNumberNoColor( Number.parseInt(tempInteger), inspectOptions, ); } break; // deno-lint-ignore no-case-declarations case 102: // 'f' const tempFloat = args[++a]; if (typeof tempFloat === "symbol") { tempStr = "NaN"; } else { tempStr = formatNumberNoColor( Number.parseFloat(tempFloat), inspectOptions, ); } break; case 99: // 'c' a += 1; tempStr = ""; break; case 37: // '%' str += first.slice(lastPos, i); lastPos = i + 1; continue; default: // Any other character is not a correct placeholder continue; } if (lastPos !== i - 1) { str += first.slice(lastPos, i - 1); } str += tempStr; lastPos = i + 1; } else if (nextChar === 37) { str += first.slice(lastPos, i); lastPos = i + 1; } } } if (lastPos !== 0) { a++; join = " "; if (lastPos < first.length) { str += first.slice(lastPos); } } } while (a < args.length) { const value = args[a]; str += join; str += typeof value !== "string" ? inspect(value, inspectOptions) : value; join = " "; a++; } return str; } /** * Remove all VT control characters. Use to estimate displayed string width. */ export function stripVTControlCharacters(str) { validateString(str, "str"); return str.replace(ansi, ""); } export function styleText(format, text) { validateString(text, "text"); const formatCodes = inspect.colors[format]; if (formatCodes == null) { validateOneOf(format, "format", Object.keys(inspect.colors)); } return `\u001b[${formatCodes[0]}m${text}\u001b[${formatCodes[1]}m`; } export default { format, getStringWidth, inspect, stripVTControlCharacters, formatWithOptions, styleText, };