[569] | 1 | /* |
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| 2 | * $Id: Format.java,v 1.4 2002/03/04 16:37:57 dwd Exp $ |
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| 3 | * |
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| 4 | * Gary Cornell and Cay S. Horstmann, Core Java (Book/CD-ROM) |
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| 5 | * Published By SunSoft Press/Prentice-Hall |
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| 6 | * Copyright (C) 1996 Sun Microsystems Inc. |
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| 7 | * All Rights Reserved. ISBN 0-13-596891-7 |
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| 8 | * |
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| 9 | * Permission to use, copy, modify, and distribute this |
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| 10 | * software and its documentation for NON-COMMERCIAL purposes |
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| 11 | * and without fee is hereby granted provided that this |
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| 12 | * copyright notice appears in all copies. |
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| 13 | * |
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| 14 | * THE AUTHORS AND PUBLISHER MAKE NO REPRESENTATIONS OR |
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| 15 | * WARRANTIES ABOUT THE SUITABILITY OF THE SOFTWARE, EITHER |
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| 16 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE |
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| 17 | * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A |
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| 18 | * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. THE AUTHORS |
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| 19 | * AND PUBLISHER SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED |
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| 20 | * BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING |
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| 21 | * THIS SOFTWARE OR ITS DERIVATIVES. |
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| 22 | */ |
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| 23 | |
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| 24 | package gov.noaa.pmel.sgt; |
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| 25 | import java.io.*; |
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| 26 | /** |
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| 27 | * A class for formatting numbers that follows printf conventions. |
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| 28 | * Also implements C-like atoi and atof functions |
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| 29 | * |
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| 30 | * @version 1.01 15 Feb 1996 |
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| 31 | * @since 1.0 |
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| 32 | * @author Cay Horstmann |
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| 33 | */ |
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| 34 | public class Format { |
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| 35 | private int width; |
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| 36 | private int precision; |
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| 37 | private String pre; |
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| 38 | private String post; |
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| 39 | private boolean leading_zeroes; |
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| 40 | private boolean show_plus; |
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| 41 | private boolean alternate; |
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| 42 | private boolean show_space; |
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| 43 | private boolean left_align; |
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| 44 | private char fmt; |
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| 45 | private static long parseLong(String s,int base) { |
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| 46 | int i = 0; int sign = 1; |
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| 47 | long r = 0; |
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| 48 | |
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| 49 | while (i < s.length() && Character.isWhitespace(s.charAt(i))) i++; |
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| 50 | if (i < s.length() && s.charAt(i) == '-') { sign = -1; i++; } |
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| 51 | else if (i < s.length() && s.charAt(i) == '+') { i++; } |
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| 52 | while (i < s.length()) |
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| 53 | { char ch = s.charAt(i); |
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| 54 | if ('0' <= ch && ch < '0' + base) |
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| 55 | r = r * base + ch - '0'; |
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| 56 | else if ('A' <= ch && ch < 'A' + base - 10) |
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| 57 | r = r * base + ch - 'A' + 10 ; |
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| 58 | else if ('a' <= ch && ch < 'a' + base - 10) |
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| 59 | r = r * base + ch - 'a' + 10 ; |
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| 60 | else |
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| 61 | return r * sign; |
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| 62 | i++; |
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| 63 | } |
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| 64 | return r * sign; |
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| 65 | } |
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| 66 | /** |
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| 67 | * a test stub for the format class |
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| 68 | */ |
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| 69 | /*public static void main(String[] a) |
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| 70 | { double x = 1.23456789012; |
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| 71 | double xx= 1.0000006; |
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| 72 | double y = 123; |
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| 73 | double z = 1.2345e30; |
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| 74 | double w = 1.02; |
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| 75 | double u = 1.234e-5; |
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| 76 | int d = 0xCAFE; |
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| 77 | Format.print(System.out, "xx = |%.6f|\n", xx); |
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| 78 | Format.print(System.out, "x = |%f|\n", x); |
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| 79 | Format.print(System.out, "u = |%20f|\n", u); |
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| 80 | Format.print(System.out, "x = |% .5f|\n", x); |
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| 81 | Format.print(System.out, "w = |%20.5f|\n", w); |
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| 82 | Format.print(System.out, "x = |%020.5f|\n", x); |
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| 83 | Format.print(System.out, "x = |%+20.5f|\n", x); |
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| 84 | Format.print(System.out, "x = |%+020.5f|\n", x); |
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| 85 | Format.print(System.out, "x = |% 020.5f|\n", x); |
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| 86 | Format.print(System.out, "y = |%#+20.5f|\n", y); |
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| 87 | Format.print(System.out, "y = |%-+20.5f|\n", y); |
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| 88 | Format.print(System.out, "z = |%20.5f|\n", z); |
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| 89 | |
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| 90 | Format.print(System.out, "x = |%e|\n", x); |
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| 91 | Format.print(System.out, "u = |%20e|\n", u); |
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| 92 | Format.print(System.out, "x = |% .5e|\n", x); |
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| 93 | Format.print(System.out, "w = |%20.5e|\n", w); |
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| 94 | Format.print(System.out, "x = |%020.5e|\n", x); |
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| 95 | Format.print(System.out, "x = |%+20.5e|\n", x); |
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| 96 | Format.print(System.out, "x = |%+020.5e|\n", x); |
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| 97 | Format.print(System.out, "x = |% 020.5e|\n", x); |
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| 98 | Format.print(System.out, "y = |%#+20.5e|\n", y); |
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| 99 | Format.print(System.out, "y = |%-+20.5e|\n", y); |
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| 100 | |
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| 101 | Format.print(System.out, "x = |%g|\n", x); |
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| 102 | Format.print(System.out, "z = |%g|\n", z); |
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| 103 | Format.print(System.out, "w = |%g|\n", w); |
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| 104 | Format.print(System.out, "u = |%g|\n", u); |
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| 105 | Format.print(System.out, "y = |%.2g|\n", y); |
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| 106 | Format.print(System.out, "y = |%#.2g|\n", y); |
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| 107 | |
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| 108 | Format.print(System.out, "d = |%d|\n", d); |
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| 109 | Format.print(System.out, "d = |%20d|\n", d); |
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| 110 | Format.print(System.out, "d = |%020d|\n", d); |
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| 111 | Format.print(System.out, "d = |%+20d|\n", d); |
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| 112 | Format.print(System.out, "d = |% 020d|\n", d); |
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| 113 | Format.print(System.out, "d = |%-20d|\n", d); |
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| 114 | Format.print(System.out, "d = |%20.8d|\n", d); |
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| 115 | Format.print(System.out, "d = |%x|\n", d); |
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| 116 | Format.print(System.out, "d = |%20X|\n", d); |
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| 117 | Format.print(System.out, "d = |%#20x|\n", d); |
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| 118 | Format.print(System.out, "d = |%020X|\n", d); |
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| 119 | Format.print(System.out, "d = |%20.8x|\n", d); |
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| 120 | Format.print(System.out, "d = |%o|\n", d); |
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| 121 | Format.print(System.out, "d = |%020o|\n", d); |
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| 122 | Format.print(System.out, "d = |%#20o|\n", d); |
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| 123 | Format.print(System.out, "d = |%#020o|\n", d); |
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| 124 | Format.print(System.out, "d = |%20.12o|\n", d); |
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| 125 | |
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| 126 | Format.print(System.out, "s = |%-20s|\n", "Hello"); |
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| 127 | Format.print(System.out, "s = |%-20c|\n", '!'); |
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| 128 | }*/ |
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| 129 | |
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| 130 | private static String repeat(char c,int n) { |
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| 131 | if (n <= 0) return ""; StringBuffer s = new StringBuffer(n); |
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| 132 | for (int i = 0; i < n; i++) s.append(c); |
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| 133 | return s.toString(); |
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| 134 | } |
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| 135 | private static String convert(long x,int n,int m,String d) { |
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| 136 | if (x == 0) return "0"; String r = ""; |
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| 137 | while (x != 0) |
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| 138 | { r = d.charAt((int)(x & m)) + r; |
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| 139 | x = x >>> n; |
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| 140 | } |
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| 141 | return r; |
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| 142 | } |
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| 143 | private String pad(String r) { |
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| 144 | String p = repeat(' ', width - r.length()); if (left_align) return pre + r + p + post; |
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| 145 | else return pre + p + r + post; |
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| 146 | } |
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| 147 | private String sign(int s,String r) { |
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| 148 | String p = ""; if (s < 0) p = "-"; |
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| 149 | else if (s > 0) |
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| 150 | { if (show_plus) p = "+"; |
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| 151 | else if (show_space) p = " "; |
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| 152 | } |
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| 153 | else |
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| 154 | { if (fmt == 'o' && alternate && r.length() > 0 && r.charAt(0) != '0') p = "0"; |
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| 155 | else if (fmt == 'x' && alternate) p = "0x"; |
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| 156 | else if (fmt == 'X' && alternate) p = "0X"; |
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| 157 | } |
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| 158 | int w = 0; |
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| 159 | if (leading_zeroes) |
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| 160 | w = width; |
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| 161 | else if ((fmt == 'd' || fmt == 'i' || fmt == 'x' || fmt == 'X' || fmt == 'o') |
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| 162 | && precision > 0) w = precision; |
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| 163 | |
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| 164 | return p + repeat('0', w - p.length() - r.length()) + r; |
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| 165 | } |
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| 166 | private String fixed_format(double d) { |
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| 167 | String f = ""; |
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| 168 | if (d > Long.MAX_VALUE) return exp_format(d); |
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| 169 | //here is the first change to the code (04/03/02) |
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| 170 | long l=(long) (d+=0.5*Math.pow(10D,-precision)); |
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| 171 | //long l = (long)(precision == 0 ? d + 0.5 : d); |
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| 172 | f =f + l; |
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| 173 | double fr = d - l; // fractional part |
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| 174 | if (fr >= 1 || fr < 0 && precision != 0) return exp_format(d); |
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| 175 | |
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| 176 | return f + frac_part(fr); |
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| 177 | } |
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| 178 | // precondition: 0 <= fr < 1 |
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| 179 | private String frac_part(double fr) { |
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| 180 | String z = ""; |
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| 181 | if (precision > 0){ |
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| 182 | double factor = 1; |
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| 183 | String leading_zeroes = ""; |
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| 184 | for (int i = 1; i <= precision && factor <= Double.MAX_VALUE; i++) { |
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| 185 | factor *= 10; |
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| 186 | leading_zeroes = leading_zeroes + "0"; |
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| 187 | } |
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| 188 | //here is the second change to the code (04/03/02) |
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| 189 | long l = (long) (factor * fr ); |
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| 190 | //long l = (long) (factor * fr + 0.5); |
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| 191 | z = leading_zeroes + l; |
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| 192 | z = z.substring(z.length() - precision, z.length()); |
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| 193 | } |
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| 194 | |
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| 195 | |
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| 196 | if (precision > 0 || alternate) z = "." + z; |
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| 197 | if ((fmt == 'G' || fmt == 'g') && !alternate) |
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| 198 | // remove trailing zeroes and decimal point |
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| 199 | { int t = z.length() - 1; |
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| 200 | while (t >= 0 && z.charAt(t) == '0') t--; |
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| 201 | if (t >= 0 && z.charAt(t) == '.') t--; |
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| 202 | z = z.substring(0, t + 1); |
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| 203 | } |
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| 204 | return z; |
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| 205 | } |
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| 206 | private String exp_format(double d) { |
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| 207 | String f = ""; int e = 0; |
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| 208 | double dd = d; |
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| 209 | double factor = 1; |
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| 210 | if (dd == 0) return "0"; |
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| 211 | while (dd > 10) { e++; factor /= 10; dd = dd / 10; } |
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| 212 | while (dd < 1) { e--; factor *= 10; dd = dd * 10; } |
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| 213 | if ((fmt == 'g' || fmt == 'G') && e >= -4 && e < precision) |
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| 214 | return fixed_format(d); |
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| 215 | |
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| 216 | d = d * factor; |
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| 217 | f = f + fixed_format(d); |
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| 218 | |
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| 219 | if (fmt == 'e' || fmt == 'g') |
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| 220 | f = f + "e"; |
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| 221 | else |
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| 222 | f = f + "E"; |
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| 223 | |
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| 224 | String p = "000"; |
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| 225 | if (e >= 0) |
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| 226 | { f = f + "+"; |
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| 227 | p = p + e; |
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| 228 | } |
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| 229 | else |
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| 230 | { f = f + "-"; |
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| 231 | p = p + (-e); |
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| 232 | } |
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| 233 | |
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| 234 | return f + p.substring(p.length() - 3, p.length()); |
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| 235 | } |
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| 236 | /** |
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| 237 | * Formats the number following printf conventions. |
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| 238 | * Main limitation: Can only handle one format parameter at a time |
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| 239 | * Use multiple Format objects to format more than one number |
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| 240 | * @param s the format string following printf conventions |
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| 241 | * The string has a prefix, a format code and a suffix. The prefix and suffix |
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| 242 | * become part of the formatted output. The format code directs the |
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| 243 | * formatting of the (single) parameter to be formatted. The code has the |
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| 244 | * following structure |
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| 245 | * <ul> |
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| 246 | * <li> a % (required) |
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| 247 | * <li> a modifier (optional) |
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| 248 | * <dl> |
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| 249 | * <dt> + <dd> forces display of + for positive numbers |
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| 250 | * <dt> 0 <dd> show leading zeroes |
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| 251 | * <dt> - <dd> align left in the field |
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| 252 | * <dt> space <dd> prepend a space in front of positive numbers |
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| 253 | * <dt> # <dd> use "alternate" format. Add 0 or 0x for octal or hexadecimal numbers. Don't suppress trailing zeroes in general floating point format. |
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| 254 | * </dl> |
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| 255 | * <li> an integer denoting field width (optional) |
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| 256 | * <li> a period followed by an integer denoting precision (optional) |
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| 257 | * <li> a format descriptor (required) |
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| 258 | * <dl> |
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| 259 | * <dt>f <dd> floating point number in fixed format |
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| 260 | * <dt>e, E <dd> floating point number in exponential notation (scientific format). The E format results in an uppercase E for the exponent (1.14130E+003), the e format in a lowercase e. |
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| 261 | * <dt>g, G <dd> floating point number in general format (fixed format for small numbers, exponential format for large numbers). Trailing zeroes are suppressed. The G format results in an uppercase E for the exponent (if any), the g format in a lowercase e. |
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| 262 | * <dt>d, i <dd> integer in decimal |
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| 263 | * <dt>x <dd> integer in hexadecimal |
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| 264 | * <dt>o <dd> integer in octal |
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| 265 | * <dt>s <dd> string |
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| 266 | * <dt>c <dd> character |
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| 267 | * </dl> |
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| 268 | * </ul> |
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| 269 | * @exception IllegalArgumentException if bad format |
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| 270 | */ |
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| 271 | public Format(String s) { |
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| 272 | width = 0; precision = -1; |
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| 273 | pre = ""; |
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| 274 | post = ""; |
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| 275 | leading_zeroes = false; |
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| 276 | show_plus = false; |
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| 277 | alternate = false; |
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| 278 | show_space = false; |
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| 279 | left_align = false; |
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| 280 | fmt = ' '; |
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| 281 | |
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| 282 | int state = 0; |
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| 283 | int length = s.length(); |
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| 284 | int parse_state = 0; |
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| 285 | // 0 = prefix, 1 = flags, 2 = width, 3 = precision, |
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| 286 | // 4 = format, 5 = end |
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| 287 | int i = 0; |
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| 288 | |
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| 289 | while (parse_state == 0) |
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| 290 | { if (i >= length) parse_state = 5; |
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| 291 | else if (s.charAt(i) == '%') |
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| 292 | { if (i < length - 1) |
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| 293 | { if (s.charAt(i + 1) == '%') |
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| 294 | { pre = pre + '%'; |
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| 295 | i++; |
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| 296 | } |
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| 297 | else |
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| 298 | parse_state = 1; |
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| 299 | } |
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| 300 | else throw new java.lang.IllegalArgumentException(); |
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| 301 | } |
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| 302 | else |
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| 303 | pre = pre + s.charAt(i); |
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| 304 | i++; |
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| 305 | } |
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| 306 | while (parse_state == 1) |
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| 307 | { if (i >= length) parse_state = 5; |
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| 308 | else if (s.charAt(i) == ' ') show_space = true; |
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| 309 | else if (s.charAt(i) == '-') left_align = true; |
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| 310 | else if (s.charAt(i) == '+') show_plus = true; |
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| 311 | else if (s.charAt(i) == '0') leading_zeroes = true; |
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| 312 | else if (s.charAt(i) == '#') alternate = true; |
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| 313 | else { parse_state = 2; i--; } |
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| 314 | i++; |
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| 315 | } |
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| 316 | while (parse_state == 2) |
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| 317 | { if (i >= length) parse_state = 5; |
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| 318 | else if ('0' <= s.charAt(i) && s.charAt(i) <= '9') |
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| 319 | { width = width * 10 + s.charAt(i) - '0'; |
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| 320 | i++; |
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| 321 | } |
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| 322 | else if (s.charAt(i) == '.') |
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| 323 | { parse_state = 3; |
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| 324 | precision = 0; |
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| 325 | i++; |
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| 326 | } |
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| 327 | else |
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| 328 | parse_state = 4; |
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| 329 | } |
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| 330 | while (parse_state == 3) |
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| 331 | { if (i >= length) parse_state = 5; |
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| 332 | else if ('0' <= s.charAt(i) && s.charAt(i) <= '9') |
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| 333 | { precision = precision * 10 + s.charAt(i) - '0'; |
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| 334 | i++; |
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| 335 | } |
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| 336 | else |
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| 337 | parse_state = 4; |
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| 338 | } |
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| 339 | if (parse_state == 4) |
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| 340 | { if (i >= length) parse_state = 5; |
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| 341 | else fmt = s.charAt(i); |
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| 342 | i++; |
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| 343 | } |
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| 344 | if (i < length) |
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| 345 | post = s.substring(i, length); |
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| 346 | } |
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| 347 | /** |
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| 348 | * prints a formatted number following printf conventions |
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| 349 | * @param s a PrintStream |
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| 350 | * @param fmt the format string |
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| 351 | * @param x the double to print |
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| 352 | */ |
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| 353 | public static void print(java.io.PrintStream s,String fmt,double x) { |
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| 354 | s.print(new Format(fmt).form(x)); |
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| 355 | } |
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| 356 | /** |
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| 357 | * prints a formatted number following printf conventions |
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| 358 | * @param s a PrintStream |
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| 359 | * @param fmt the format string |
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| 360 | * @param x the long to print |
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| 361 | */ |
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| 362 | public static void print(java.io.PrintStream s,String fmt,long x) { |
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| 363 | s.print(new Format(fmt).form(x)); |
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| 364 | } |
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| 365 | /** |
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| 366 | * prints a formatted number following printf conventions |
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| 367 | * @param s a PrintStream |
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| 368 | * @param fmt the format string |
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| 369 | * @param x the character to |
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| 370 | */ |
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| 371 | public static void print(java.io.PrintStream s,String fmt,char x) { |
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| 372 | s.print(new Format(fmt).form(x)); |
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| 373 | } |
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| 374 | /** |
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| 375 | * prints a formatted number following printf conventions |
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| 376 | * @param s a PrintStream, fmt the format string |
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| 377 | * @param x a string that represents the digits to print |
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| 378 | */ |
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| 379 | public static void print(java.io.PrintStream s,String fmt,String x) { |
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| 380 | s.print(new Format(fmt).form(x)); |
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| 381 | } |
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| 382 | /** |
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| 383 | * Converts a string of digits (decimal, octal or hex) to an integer |
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| 384 | * @param s a string |
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| 385 | * @return the numeric value of the prefix of s representing a base 10 integer |
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| 386 | */ |
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| 387 | public static int atoi(String s) { |
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| 388 | return (int)atol(s); |
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| 389 | } |
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| 390 | /** |
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| 391 | * Converts a string of digits (decimal, octal or hex) to a long integer |
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| 392 | * @param s a string |
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| 393 | * @return the numeric value of the prefix of s representing a base 10 integer |
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| 394 | */ |
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| 395 | public static long atol(String s) { |
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| 396 | int i = 0; |
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| 397 | while (i < s.length() && Character.isWhitespace(s.charAt(i))) i++; |
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| 398 | if (i < s.length() && s.charAt(i) == '0') |
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| 399 | { if (i + 1 < s.length() && (s.charAt(i + 1) == 'x' || s.charAt(i + 1) == 'X')) |
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| 400 | return parseLong(s.substring(i + 2), 16); |
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| 401 | else return parseLong(s, 8); |
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| 402 | } |
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| 403 | else return parseLong(s, 10); |
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| 404 | } |
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| 405 | /** |
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| 406 | * Computes the format based on desired prescision and |
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| 407 | * minimum, maximum values. |
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| 408 | * |
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| 409 | * @param min minimum value |
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| 410 | * @param max maximum value |
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| 411 | * @param pres prescision |
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| 412 | */ |
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| 413 | public static String computeFormat(double min,double max,int pres) { |
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| 414 | double dx, xx; |
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| 415 | int ip, id, ib; |
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| 416 | String frmt; |
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| 417 | |
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| 418 | dx = Math.abs(max - min); |
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| 419 | xx = Math.abs(max); |
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| 420 | if(xx < Math.abs(min)) xx = Math.abs(min); |
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| 421 | if(pres >= 0 && (xx >= 1000000.0f || xx < 0.001f)) { |
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| 422 | id = pres -1; |
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| 423 | if(id < 0) id=0; |
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| 424 | frmt = "%" + "." + id + "e"; |
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| 425 | } else { |
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| 426 | ip = Math.abs(pres); |
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| 427 | id = ip - (int)(log10(dx) + 0.5); |
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| 428 | if(id < 0) id = 0; |
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| 429 | frmt = "%" + "." + id + "f"; |
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| 430 | } |
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| 431 | return frmt; |
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| 432 | } |
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| 433 | static final double log10(double x) { |
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| 434 | return 0.4342944819*Math.log(x); |
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| 435 | } |
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| 436 | /** |
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| 437 | * Converts a string of digits to an double |
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| 438 | * @param s a string |
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| 439 | */ |
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| 440 | public static double atof(String s) { |
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| 441 | int i = 0; int sign = 1; |
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| 442 | double r = 0; // integer part |
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| 443 | double f = 0; // fractional part |
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| 444 | double p = 1; // exponent of fractional part |
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| 445 | int state = 0; // 0 = int part, 1 = frac part |
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| 446 | |
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| 447 | while (i < s.length() && Character.isWhitespace(s.charAt(i))) i++; |
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| 448 | if (i < s.length() && s.charAt(i) == '-') { sign = -1; i++; } |
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| 449 | else if (i < s.length() && s.charAt(i) == '+') { i++; } |
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| 450 | while (i < s.length()) |
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| 451 | { char ch = s.charAt(i); |
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| 452 | if ('0' <= ch && ch <= '9') |
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| 453 | { if (state == 0) |
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| 454 | r = r * 10 + ch - '0'; |
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| 455 | else if (state == 1) |
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| 456 | { p = p / 10; |
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| 457 | r = r + p * (ch - '0'); |
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| 458 | } |
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| 459 | } |
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| 460 | else if (ch == '.') |
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| 461 | { if (state == 0) state = 1; |
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| 462 | else return sign * r; |
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| 463 | } |
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| 464 | else if (ch == 'e' || ch == 'E') |
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| 465 | { long e = (int)parseLong(s.substring(i + 1), 10); |
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| 466 | return sign * r * Math.pow(10, e); |
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| 467 | } |
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| 468 | else return sign * r; |
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| 469 | i++; |
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| 470 | } |
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| 471 | return sign * r; |
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| 472 | } |
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| 473 | /** |
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| 474 | * Formats a double into a string (like sprintf in C) |
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| 475 | * @param x the number to format |
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| 476 | * @return the formatted string |
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| 477 | * @exception IllegalArgumentException if bad argument |
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| 478 | */ |
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| 479 | public String form(double x) { |
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| 480 | String r; if (precision < 0) precision = 6; |
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| 481 | int s = 1; |
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| 482 | if (x < 0) { x = -x; s = -1; } |
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| 483 | if (fmt == 'f'){ |
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| 484 | r = fixed_format(x); |
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| 485 | } |
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| 486 | else if (fmt == 'e' || fmt == 'E' || fmt == 'g' || fmt == 'G') |
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| 487 | r = exp_format(x); |
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| 488 | else throw new java.lang.IllegalArgumentException(); |
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| 489 | return pad(sign(s, r)); |
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| 490 | } |
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| 491 | /** |
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| 492 | * Formats a long integer into a string (like sprintf in C) |
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| 493 | * @param x the number to format |
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| 494 | * @return the formatted string |
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| 495 | */ |
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| 496 | public String form(long x) { |
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| 497 | String r; int s = 0; |
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| 498 | if (fmt == 'd' || fmt == 'i') |
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| 499 | { s = 1; |
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| 500 | if (x < 0) { x = -x; s = -1; } |
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| 501 | r = "" + x; |
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| 502 | } |
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| 503 | else if (fmt == 'o') |
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| 504 | r = convert(x, 3, 7, "01234567"); |
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| 505 | else if (fmt == 'x') |
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| 506 | r = convert(x, 4, 15, "0123456789abcdef"); |
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| 507 | else if (fmt == 'X') |
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| 508 | r = convert(x, 4, 15, "0123456789ABCDEF"); |
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| 509 | else throw new java.lang.IllegalArgumentException(); |
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| 510 | |
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| 511 | return pad(sign(s, r)); |
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| 512 | } |
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| 513 | /** |
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| 514 | * Formats a character into a string (like sprintf in C) |
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| 515 | * @param x the value to format |
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| 516 | * @return the formatted string |
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| 517 | */ |
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| 518 | public String form(char c) { |
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| 519 | if (fmt != 'c') throw new java.lang.IllegalArgumentException(); |
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| 520 | |
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| 521 | String r = "" + c; |
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| 522 | return pad(r); |
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| 523 | } |
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| 524 | /** |
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| 525 | * Formats a string into a larger string (like sprintf in C) |
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| 526 | * @param x the value to format |
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| 527 | * @return the formatted string |
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| 528 | */ |
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| 529 | public String form(String s) { |
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| 530 | if (fmt != 's') throw new java.lang.IllegalArgumentException(); |
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| 531 | if (precision >= 0) s = s.substring(0, precision); |
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| 532 | return pad(s); |
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| 533 | } |
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| 534 | } |
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