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"use strict";
var d = require("d")
, assign = require("es5-ext/object/assign")
, forEach = require("es5-ext/object/for-each")
, map = require("es5-ext/object/map")
, primitiveSet = require("es5-ext/object/primitive-set")
, setPrototypeOf = require("es5-ext/object/set-prototype-of")
, memoize = require("memoizee")
, memoizeMethods = require("memoizee/methods")
, sgr = require("./lib/sgr")
, supportsColor = require("./lib/supports-color");
var mods = sgr.mods
, join = Array.prototype.join
, defineProperty = Object.defineProperty
, max = Math.max
, min = Math.min
, variantModes = primitiveSet("_fg", "_bg")
, xtermMatch = process.platform === "win32" ? require("./lib/xterm-match") : null;
var getFn;
// Some use cli-color as: console.log(clc.red('Error!'));
// Which is inefficient as on each call it configures new clc object
// with memoization we reuse once created object
var memoized = memoize(function (scope, mod) {
return defineProperty(getFn(), "_cliColorData", d(assign({}, scope._cliColorData, mod)));
});
var proto = Object.create(
Function.prototype,
assign(
map(mods, function (mod) {
return d.gs(function () { return memoized(this, mod); });
}),
memoizeMethods({
// xterm (255) color
xterm: d(function (code) {
code = isNaN(code) ? 255 : min(max(code, 0), 255);
return defineProperty(
getFn(), "_cliColorData",
d(
assign({}, this._cliColorData, {
_fg: [xtermMatch ? xtermMatch[code] : "38;5;" + code, 39]
})
)
);
}),
bgXterm: d(function (code) {
code = isNaN(code) ? 255 : min(max(code, 0), 255);
return defineProperty(
getFn(), "_cliColorData",
d(
assign({}, this._cliColorData, {
_bg: [xtermMatch ? xtermMatch[code] + 10 : "48;5;" + code, 49]
})
)
);
})
})
)
);
var getEndRe = memoize(function (code) { return new RegExp("\x1b\\[" + code + "m", "g"); }, {
primitive: true
});
getFn = function () {
return setPrototypeOf(
function self(/* …msg*/) {
var start = ""
, end = ""
, msg = join.call(arguments, " ")
, conf = self._cliColorData
, hasAnsi = sgr.hasCSI(msg);
forEach(
conf,
function (mod, key) {
end = sgr(mod[1]) + end;
start += sgr(mod[0]);
if (hasAnsi) {
msg = msg.replace(getEndRe(mod[1]), variantModes[key] ? sgr(mod[0]) : "");
}
},
null,
true
);
if (!supportsColor.isColorSupported()) return msg;
return start + msg + end;
},
proto
);
};
module.exports = Object.defineProperties(getFn(), {
xtermSupported: d(!xtermMatch),
_cliColorData: d("", {})
});
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