diff options
Diffstat (limited to 'node_modules/chalk/source/index.js')
-rw-r--r-- | node_modules/chalk/source/index.js | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/node_modules/chalk/source/index.js b/node_modules/chalk/source/index.js new file mode 100644 index 0000000..302024b --- /dev/null +++ b/node_modules/chalk/source/index.js @@ -0,0 +1,212 @@ +import ansiStyles from '#ansi-styles'; +import supportsColor from '#supports-color'; +import { // eslint-disable-line import/order + stringReplaceAll, + stringEncaseCRLFWithFirstIndex, +} from './utilities.js'; + +const {stdout: stdoutColor, stderr: stderrColor} = supportsColor; + +const GENERATOR = Symbol('GENERATOR'); +const STYLER = Symbol('STYLER'); +const IS_EMPTY = Symbol('IS_EMPTY'); + +// `supportsColor.level` → `ansiStyles.color[name]` mapping +const levelMapping = [ + 'ansi', + 'ansi', + 'ansi256', + 'ansi16m', +]; + +const styles = Object.create(null); + +const applyOptions = (object, options = {}) => { + if (options.level && !(Number.isInteger(options.level) && options.level >= 0 && options.level <= 3)) { + throw new Error('The `level` option should be an integer from 0 to 3'); + } + + // Detect level if not set manually + const colorLevel = stdoutColor ? stdoutColor.level : 0; + object.level = options.level === undefined ? colorLevel : options.level; +}; + +export class Chalk { + constructor(options) { + // eslint-disable-next-line no-constructor-return + return chalkFactory(options); + } +} + +const chalkFactory = options => { + const chalk = (...strings) => strings.join(' '); + applyOptions(chalk, options); + + Object.setPrototypeOf(chalk, createChalk.prototype); + + return chalk; +}; + +function createChalk(options) { + return chalkFactory(options); +} + +Object.setPrototypeOf(createChalk.prototype, Function.prototype); + +for (const [styleName, style] of Object.entries(ansiStyles)) { + styles[styleName] = { + get() { + const builder = createBuilder(this, createStyler(style.open, style.close, this[STYLER]), this[IS_EMPTY]); + Object.defineProperty(this, styleName, {value: builder}); + return builder; + }, + }; +} + +styles.visible = { + get() { + const builder = createBuilder(this, this[STYLER], true); + Object.defineProperty(this, 'visible', {value: builder}); + return builder; + }, +}; + +const getModelAnsi = (model, level, type, ...arguments_) => { + if (model === 'rgb') { + if (level === 'ansi16m') { + return ansiStyles[type].ansi16m(...arguments_); + } + + if (level === 'ansi256') { + return ansiStyles[type].ansi256(ansiStyles.rgbToAnsi256(...arguments_)); + } + + return ansiStyles[type].ansi(ansiStyles.rgbToAnsi(...arguments_)); + } + + if (model === 'hex') { + return getModelAnsi('rgb', level, type, ...ansiStyles.hexToRgb(...arguments_)); + } + + return ansiStyles[type][model](...arguments_); +}; + +const usedModels = ['rgb', 'hex', 'ansi256']; + +for (const model of usedModels) { + styles[model] = { + get() { + const {level} = this; + return function (...arguments_) { + const styler = createStyler(getModelAnsi(model, levelMapping[level], 'color', ...arguments_), ansiStyles.color.close, this[STYLER]); + return createBuilder(this, styler, this[IS_EMPTY]); + }; + }, + }; + + const bgModel = 'bg' + model[0].toUpperCase() + model.slice(1); + styles[bgModel] = { + get() { + const {level} = this; + return function (...arguments_) { + const styler = createStyler(getModelAnsi(model, levelMapping[level], 'bgColor', ...arguments_), ansiStyles.bgColor.close, this[STYLER]); + return createBuilder(this, styler, this[IS_EMPTY]); + }; + }, + }; +} + +const proto = Object.defineProperties(() => {}, { + ...styles, + level: { + enumerable: true, + get() { + return this[GENERATOR].level; + }, + set(level) { + this[GENERATOR].level = level; + }, + }, +}); + +const createStyler = (open, close, parent) => { + let openAll; + let closeAll; + if (parent === undefined) { + openAll = open; + closeAll = close; + } else { + openAll = parent.openAll + open; + closeAll = close + parent.closeAll; + } + + return { + open, + close, + openAll, + closeAll, + parent, + }; +}; + +const createBuilder = (self, _styler, _isEmpty) => { + // Single argument is hot path, implicit coercion is faster than anything + // eslint-disable-next-line no-implicit-coercion + const builder = (...arguments_) => applyStyle(builder, (arguments_.length === 1) ? ('' + arguments_[0]) : arguments_.join(' ')); + + // We alter the prototype because we must return a function, but there is + // no way to create a function with a different prototype + Object.setPrototypeOf(builder, proto); + + builder[GENERATOR] = self; + builder[STYLER] = _styler; + builder[IS_EMPTY] = _isEmpty; + + return builder; +}; + +const applyStyle = (self, string) => { + if (self.level <= 0 || !string) { + return self[IS_EMPTY] ? '' : string; + } + + let styler = self[STYLER]; + + if (styler === undefined) { + return string; + } + + const {openAll, closeAll} = styler; + if (string.includes('\u001B')) { + while (styler !== undefined) { + // Replace any instances already present with a re-opening code + // otherwise only the part of the string until said closing code + // will be colored, and the rest will simply be 'plain'. + string = stringReplaceAll(string, styler.close, styler.open); + + styler = styler.parent; + } + } + + // We can move both next actions out of loop, because remaining actions in loop won't have + // any/visible effect on parts we add here. Close the styling before a linebreak and reopen + // after next line to fix a bleed issue on macOS: https://github.com/chalk/chalk/pull/92 + const lfIndex = string.indexOf('\n'); + if (lfIndex !== -1) { + string = stringEncaseCRLFWithFirstIndex(string, closeAll, openAll, lfIndex); + } + + return openAll + string + closeAll; +}; + +Object.defineProperties(createChalk.prototype, styles); + +const chalk = createChalk(); +export const chalkStderr = createChalk({level: stderrColor ? stderrColor.level : 0}); + +export { + stdoutColor as supportsColor, + stderrColor as supportsColorStderr, +}; + +export default chalk; |