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편집 파일: quicksort.awk

# quicksort.awk --- Quicksort algorithm, with user-supplied # comparison function # # Arnold Robbins, arnold@skeeve.com, Public Domain # January 2009 # quicksort --- C.A.R. Hoare's quicksort algorithm. See Wikipedia # or almost any algorithms or computer science text. # # Adapted from K&R-II, page 110 function quicksort(data, left, right, less_than, i, last) { if (left >= right) # do nothing if array contains fewer return # than two elements quicksort_swap(data, left, int((left + right) / 2)) last = left for (i = left + 1; i <= right; i++) if (@less_than(data[i], data[left])) quicksort_swap(data, ++last, i) quicksort_swap(data, left, last) quicksort(data, left, last - 1, less_than) quicksort(data, last + 1, right, less_than) } # quicksort_swap --- helper function for quicksort, should really be inline function quicksort_swap(data, i, j, temp) { temp = data[i] data[i] = data[j] data[j] = temp }