float isGametypeInFilter(float gt, float tp, float ts, string pattern);
-typedef void(float i1, float i2, entity pass) swapfunc_t; // is only ever called for i1 < i2
-typedef float(float i1, float i2, entity pass) comparefunc_t; // <0 for <, ==0 for ==, >0 for > (like strcmp)
-void shuffle(float n, swapfunc_t swap, entity pass);
-void heapsort(float n, swapfunc_t swap, comparefunc_t cmp, entity pass);
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string swapwords(string str, float i, float j);
string shufflewords(string str);