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: / var / canvas / node_modules / cli-color / lib /

Filename : xterm-match.js

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"use strict";

var push = Array.prototype.push
  , reduce = Array.prototype.reduce
  , abs = Math.abs
  , colors
  , match
  , result
  , i;

colors = require("./xterm-colors").map(function (color) {
	return {
		r: parseInt(color.slice(0, 2), 16),
		g: parseInt(color.slice(2, 4), 16),
		b: parseInt(color.slice(4), 16)
	};
});

match = colors.slice(0, 16);

module.exports = result = [];

i = 0;
while (i < 8) {
	result.push(30 + i++);
}
i = 0;
while (i < 8) {
	result.push(90 + i++);
}
push.apply(
	result,
	colors.slice(16).map(function (data) {
		var index, diff = Infinity;
		match.every(function (innerMatch, currentIndex) {
			var ndiff = reduce.call(
				"rgb",
				function (currentDiff, channel) {
					currentDiff += abs(innerMatch[channel] - data[channel]);
					return currentDiff;
				},
				0
			);
			if (ndiff < diff) {
				index = currentIndex;
				diff = ndiff;
			}
			return ndiff;
		});
		return result[index];
	})
);