/////////////////////////

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// exported functions //

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// declaration //

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/////////////////////////

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function fromCodePoint(codepoint) {

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var code = typeof codepoint === 'string' ?

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parseInt(codepoint, 16) : codepoint;

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if (code < 0x10000) {

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return fromCharCode(code);

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}

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code -= 0x10000;

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return fromCharCode(

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0xD800 + (code >> 10),

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0xDC00 + (code & 0x3FF)

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);

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}

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function parse(what, how) {

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if (!how || typeof how === 'function') {

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how = {callback: how};

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}

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// if first argument is string, inject html <img> tags

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// otherwise use the DOM tree and parse text nodes only

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return (typeof what === 'string' ? parseString : parseNode)(what, {

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callback: how.callback || defaultImageSrcGenerator,

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attributes: typeof how.attributes === 'function' ? how.attributes : returnNull,

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base: typeof how.base === 'string' ? how.base : twemoji.base,

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ext: how.ext || twemoji.ext,

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size: how.folder || toSizeSquaredAsset(how.size || twemoji.size),

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className: how.className || twemoji.className,

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onerror: how.onerror || twemoji.onerror

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});

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}

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function replace(text, callback) {

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return String(text).replace(re, callback);

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}

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function test(text) {

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// IE6 needs a reset before too

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re.lastIndex = 0;

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var result = re.test(text);

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re.lastIndex = 0;

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return result;

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}

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function toCodePoint(unicodeSurrogates, sep) {

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var

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r = [],

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c = 0,

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p = 0,

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i = 0;

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while (i < unicodeSurrogates.length) {

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c = unicodeSurrogates.charCodeAt(i++);

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if (p) {

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r.push((0x10000 + ((p - 0xD800) << 10) + (c - 0xDC00)).toString(16));

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p = 0;

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} else if (0xD800 <= c && c <= 0xDBFF) {

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p = c;

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} else {

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r.push(c.toString(16));

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}

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}

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return r.join(sep || '-');

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}

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}());

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