From: jprocter Date: Thu, 26 Apr 2007 17:10:20 +0000 (+0000) Subject: double sort functions X-Git-Tag: Release_2_3~159 X-Git-Url: http://source.jalview.org/gitweb/?a=commitdiff_plain;h=10a9a04653384ec6cd075ab8add2f0c661d8bb1c;p=jalview.git double sort functions --- diff --git a/src/jalview/util/QuickSort.java b/src/jalview/util/QuickSort.java index 7836c5b..017921f 100755 --- a/src/jalview/util/QuickSort.java +++ b/src/jalview/util/QuickSort.java @@ -1,130 +1,183 @@ -/* - * Jalview - A Sequence Alignment Editor and Viewer - * Copyright (C) 2007 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 + * Copyright (C) 2007 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(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); + } + } + + 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(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; + } + } + } +}