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export function merge(...sets) {
if (sets.length > 1) {
sets[0] = sets[0].slice(0, -1);
const xl = sets.length - 1;
for (let x = 1; x < xl; ++x) {
sets[x] = sets[x].slice(1, -1);
}
sets[xl] = sets[xl].slice(1);
return sets.join('');
}
else {
return sets[0];
}
}
export function subexp(str) {
return "(?:" + str + ")";
}
export function typeOf(o) {
return o === undefined ? "undefined" : (o === null ? "null" : Object.prototype.toString.call(o).split(" ").pop().split("]").shift().toLowerCase());
}
export function toUpperCase(str) {
return str.toUpperCase();
}
export function toArray(obj) {
return obj !== undefined && obj !== null ? (obj instanceof Array ? obj : (typeof obj.length !== "number" || obj.split || obj.setInterval || obj.call ? [obj] : Array.prototype.slice.call(obj))) : [];
}
export function assign(target, source) {
const obj = target;
if (source) {
for (const key in source) {
obj[key] = source[key];
}
}
return obj;
}
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