FM / chalk

/usr/lib/node_modules/npm/node_modules/chalk/

/usr/lib/node_modules/npm/node_modules/chalk

Name	Size	Mode	Actions
types/	-	0755	rm
index.js	6439	0644	edit dl rm
index.js.flow	1914	0644	edit dl rm
license	1109	0644	edit dl rm
package.json	2338	0644	edit dl rm
templates.js	3133	0644	edit dl rm

Edit: /usr/lib/node_modules/npm/node_modules/chalk/templates.js (3133B)

'use strict';
const TEMPLATE_REGEX = /(?:\$u[a-f\d]{4}|x[a-f\d]{2}|.))|(?:\{(~)?(\w+(?:\([^)]*$)?(?:\.\w+(?:$[^)]*$)?)*)(?:[ \t]|(?=\r?\n)))|(\})|((?:.|[\r\n\f])+?)/gi;
const STYLE_REGEX = /(?:^|\.)(\w+)(?:$([^)]*)$)?/g;
const STRING_REGEX = /^(['"])((?:\\.|(?!\1)[^\\])*)\1$/;
const ESCAPE_REGEX = /\\(u[a-f\d]{4}|x[a-f\d]{2}|.)|([^\\])/gi;

const ESCAPES = new Map([
	['n', '\n'],
	['r', '\r'],
	['t', '\t'],
	['b', '\b'],
	['f', '\f'],
	['v', '\v'],
	['0', '\0'],
	['\\', '\\'],
	['e', '\u001B'],
	['a', '\u0007']
]);

function unescape(c) {
	if ((c[0] === 'u' && c.length === 5) || (c[0] === 'x' && c.length === 3)) {
		return String.fromCharCode(parseInt(c.slice(1), 16));
	}

return ESCAPES.get(c) || c;
}

function parseArguments(name, args) {
	const results = [];
	const chunks = args.trim().split(/\s*,\s*/g);
	let matches;

for (const chunk of chunks) {
		if (!isNaN(chunk)) {
			results.push(Number(chunk));
		} else if ((matches = chunk.match(STRING_REGEX))) {
			results.push(matches[2].replace(ESCAPE_REGEX, (m, escape, chr) => escape ? unescape(escape) : chr));
		} else {
			throw new Error(`Invalid Chalk template style argument: ${chunk} (in style '${name}')`);
		}
	}

return results;
}

function parseStyle(style) {
	STYLE_REGEX.lastIndex = 0;

const results = [];
	let matches;

while ((matches = STYLE_REGEX.exec(style)) !== null) {
		const name = matches[1];

if (matches[2]) {
			const args = parseArguments(name, matches[2]);
			results.push([name].concat(args));
		} else {
			results.push([name]);
		}
	}

return results;
}

function buildStyle(chalk, styles) {
	const enabled = {};

for (const layer of styles) {
		for (const style of layer.styles) {
			enabled[style[0]] = layer.inverse ? null : style.slice(1);
		}
	}

let current = chalk;
	for (const styleName of Object.keys(enabled)) {
		if (Array.isArray(enabled[styleName])) {
			if (!(styleName in current)) {
				throw new Error(`Unknown Chalk style: ${styleName}`);
			}

if (enabled[styleName].length > 0) {
				current = current[styleName].apply(current, enabled[styleName]);
			} else {
				current = current[styleName];
			}
		}
	}

return current;
}

module.exports = (chalk, tmp) => {
	const styles = [];
	const chunks = [];
	let chunk = [];

// eslint-disable-next-line max-params
	tmp.replace(TEMPLATE_REGEX, (m, escapeChar, inverse, style, close, chr) => {
		if (escapeChar) {
			chunk.push(unescape(escapeChar));
		} else if (style) {
			const str = chunk.join('');
			chunk = [];
			chunks.push(styles.length === 0 ? str : buildStyle(chalk, styles)(str));
			styles.push({inverse, styles: parseStyle(style)});
		} else if (close) {
			if (styles.length === 0) {
				throw new Error('Found extraneous } in Chalk template literal');
			}

chunks.push(buildStyle(chalk, styles)(chunk.join('')));
			chunk = [];
			styles.pop();
		} else {
			chunk.push(chr);
		}
	});

chunks.push(chunk.join(''));

if (styles.length > 0) {
		const errMsg = `Chalk template literal is missing ${styles.length} closing bracket${styles.length === 1 ? '' : 's'} (\`}\`)`;
		throw new Error(errMsg);
	}

return chunks.join('');
};

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