X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Futil%2FQuickSort.java;h=94ec1aa2cd88c837475d2f7e950d7af0b16c2d07;hb=d25788049914c6da6c71d203822a9adfe548d3be;hp=36241447b4911a18ce629e1d69b7d03f5b0ec333;hpb=99c58ee0ae2a848f982552e53feaf6d5cb9925e5;p=jalview.git diff --git a/src/jalview/util/QuickSort.java b/src/jalview/util/QuickSort.java index 3624144..94ec1aa 100755 --- a/src/jalview/util/QuickSort.java +++ b/src/jalview/util/QuickSort.java @@ -1,110 +1,229 @@ -/* -* Jalview - A Sequence Alignment Editor and Viewer -* Copyright (C) 2005 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle -* -* This program is free software; you can redistribute it and/or -* modify it under the terms of the GNU General Public License -* as published by the Free Software Foundation; either version 2 -* of the License, or (at your option) any later version. -* -* This program is distributed in the hope that it will be useful, -* but WITHOUT ANY WARRANTY; without even the implied warranty of -* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -* GNU General Public License for more details. -* -* You should have received a copy of the GNU General Public License -* along with this program; if not, write to the Free Software -* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA -*/ - -package jalview.util; - - -public class QuickSort { - - public static void sort(float[] arr,Object[] s) { - sort(arr,0,arr.length-1,s); - } - - public static void sort(String[] arr,Object[] s) { - stringSort(arr,0,arr.length-1,s); - } - - public static void stringSort(String[] arr,int p, int r,Object[] s) { - int q; - - if (p < r) { - q = stringPartition(arr,p,r,s); - stringSort(arr,p,q,s); - stringSort(arr,q+1,r,s); - } - } - - public static void sort(float[] arr,int p, int r,Object[] s) { - int q; - - if (p < r) { - q = partition(arr,p,r,s); - sort(arr,p,q,s); - sort(arr,q+1,r,s); - } - } - - private static int partition(float[] arr, int p, int r,Object[] s) { - float x = arr[p]; - int i = p-1; - int j = r+1; - - while(true) { - do { - j = j-1; - } while (arr[j] > x); - - do { - i = i+1; - } while (arr[i] < x); - - if ( i < j) { - float tmp = arr[i]; - arr[i] = arr[j]; - arr[j] = tmp; - - Object tmp2 = s[i]; - s[i] = s[j]; - s[j] = tmp2; - } else { - return j; - } - } - } - private static int stringPartition(String[] arr, int p, int r,Object[] s) { - String x = arr[p]; - int i = p-1; - int j = r+1; - - while(true) { - do { - j = j-1; - } while (arr[j].compareTo(x) < 0); - - do { - i = i+1; - } while (arr[i].compareTo(x) > 0); - - if ( i < j) { - String tmp = arr[i]; - arr[i] = arr[j]; - arr[j] = tmp; - - Object tmp2 = s[i]; - s[i] = s[j]; - s[j] = tmp2; - } else { - return j; - } - } - } -} - - - +/* + * Jalview - A Sequence Alignment Editor and Viewer (Version 2.7) + * Copyright (C) 2011 J Procter, AM Waterhouse, G Barton, M Clamp, S Searle + * + * This file is part of Jalview. + * + * Jalview is free software: you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. + * + * Jalview is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR + * PURPOSE. See the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along with Jalview. If not, see . + */ +package jalview.util; + +public class QuickSort +{ + public static void sort(int[] arr, Object[] s) + { + sort(arr, 0, arr.length - 1, s); + } + + public static void sort(float[] arr, Object[] s) + { + sort(arr, 0, arr.length - 1, s); + } + + public static void sort(double[] arr, Object[] s) + { + sort(arr, 0, arr.length - 1, s); + } + + public static void sort(String[] arr, Object[] s) + { + stringSort(arr, 0, arr.length - 1, s); + } + + public static void stringSort(String[] arr, int p, int r, Object[] s) + { + int q; + + if (p < r) + { + q = stringPartition(arr, p, r, s); + stringSort(arr, p, q, s); + stringSort(arr, q + 1, r, s); + } + } + + public static void sort(float[] arr, int p, int r, Object[] s) + { + int q; + + if (p < r) + { + q = partition(arr, p, r, s); + sort(arr, p, q, s); + sort(arr, q + 1, r, s); + } + } + + public static void sort(double[] arr, int p, int r, Object[] s) + { + int q; + + if (p < r) + { + q = partition(arr, p, r, s); + sort(arr, p, q, s); + sort(arr, q + 1, r, s); + } + } + + public static void sort(int[] arr, int p, int r, Object[] s) + { + int q; + + if (p < r) + { + q = partition(arr, p, r, s); + sort(arr, p, q, s); + sort(arr, q + 1, r, s); + } + } + + private static int partition(float[] arr, int p, int r, Object[] s) + { + float x = arr[p]; + int i = p - 1; + int j = r + 1; + + while (true) + { + do + { + j = j - 1; + } while (arr[j] > x); + + do + { + i = i + 1; + } while (arr[i] < x); + + if (i < j) + { + float tmp = arr[i]; + arr[i] = arr[j]; + arr[j] = tmp; + + Object tmp2 = s[i]; + s[i] = s[j]; + s[j] = tmp2; + } + else + { + return j; + } + } + } + + private static int partition(int[] arr, int p, int r, Object[] s) + { + int x = arr[p]; + int i = p - 1; + int j = r + 1; + + while (true) + { + do + { + j = j - 1; + } while (arr[j] > x); + + do + { + i = i + 1; + } while (arr[i] < x); + + if (i < j) + { + int tmp = arr[i]; + arr[i] = arr[j]; + arr[j] = tmp; + + Object tmp2 = s[i]; + s[i] = s[j]; + s[j] = tmp2; + } + else + { + return j; + } + } + } + + private static int partition(double[] arr, int p, int r, Object[] s) + { + double x = arr[p]; + int i = p - 1; + int j = r + 1; + + while (true) + { + do + { + j = j - 1; + } while (arr[j] > x); + + do + { + i = i + 1; + } while (arr[i] < x); + + if (i < j) + { + double tmp = arr[i]; + arr[i] = arr[j]; + arr[j] = tmp; + + Object tmp2 = s[i]; + s[i] = s[j]; + s[j] = tmp2; + } + else + { + return j; + } + } + } + + private static int stringPartition(String[] arr, int p, int r, Object[] s) + { + String x = arr[p]; + int i = p - 1; + int j = r + 1; + + while (true) + { + do + { + j = j - 1; + } while (arr[j].compareTo(x) < 0); + + do + { + i = i + 1; + } while (arr[i].compareTo(x) > 0); + + if (i < j) + { + String tmp = arr[i]; + arr[i] = arr[j]; + arr[j] = tmp; + + Object tmp2 = s[i]; + s[i] = s[j]; + s[j] = tmp2; + } + else + { + return j; + } + } + } +}