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cli-color

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Colors, formatting and other tools for the console

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"use strict"; /* CSI - control sequence introducer */ /* SGR - set graphic rendition */ var assign = require("es5-ext/object/assign") , includes = require("es5-ext/string/#/contains") , forOwn = require("es5-ext/object/for-each") , onlyKey = require("es5-ext/object/first-key") , forEachRight = require("es5-ext/array/#/for-each-right") , uniq = require("es5-ext/array/#/uniq.js"); var CSI = "\x1b["; var sgr = function (code) { return CSI + code + "m"; }; sgr.CSI = CSI; var mods = assign( { // Style bold: { _bold: [1, 22] }, italic: { _italic: [3, 23] }, underline: { _underline: [4, 24] }, blink: { _blink: [5, 25] }, inverse: { _inverse: [7, 27] }, strike: { _strike: [9, 29] } // Color }, ["black", "red", "green", "yellow", "blue", "magenta", "cyan", "white"].reduce(function ( obj, color, index ) { // foreground obj[color] = { _fg: [30 + index, 39] }; obj[color + "Bright"] = { _fg: [90 + index, 39] }; // background obj["bg" + color[0].toUpperCase() + color.slice(1)] = { _bg: [40 + index, 49] }; obj["bg" + color[0].toUpperCase() + color.slice(1) + "Bright"] = { _bg: [100 + index, 49] }; return obj; }, {}) ); sgr.mods = mods; sgr.openers = {}; sgr.closers = {}; forOwn(mods, function (mod) { var modPair = mod[onlyKey(mod)]; sgr.openers[modPair[0]] = modPair; sgr.closers[modPair[1]] = modPair; }); sgr.openStyle = function (openedMods, code) { openedMods.push(sgr.openers[code]); }; sgr.closeStyle = function (openedMods, code) { forEachRight.call(openedMods, function (modPair, index) { if (modPair[1] === code) { openedMods.splice(index, 1); } }); }; /* prepend openers */ sgr.prepend = function (currentMods) { return currentMods.map(function (modPair) { return sgr(modPair[0]); }); }; /* complete non-closed openers with corresponding closers */ sgr.complete = function (openedMods, closerCodes) { closerCodes.forEach(function (code) { sgr.closeStyle(openedMods, code); }); // mods must be closed from the last opened to first opened openedMods = openedMods.reverse(); openedMods = openedMods.map(function (modPair) { return modPair[1]; }); // one closer can close many openers (31, 32 -> 39) openedMods = uniq.call(openedMods); return openedMods.map(sgr); }; var hasCSI = function (str) { return includes.call(str, CSI); }; sgr.hasCSI = hasCSI; var extractCode = function (csi) { var code = csi.slice(2, -1); code = Number(code); return code; }; sgr.extractCode = extractCode; module.exports = sgr;