X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Futil%2FFormat.java;h=d85013ca0be50db96a9a84ee30a3f08bcb72d39a;hb=797df64fa2a0a30773d0f48f5494d4155e5a8be3;hp=dda9cdefff25b91feadbf3863b41a64ea56bcae3;hpb=fdfa02ece56124c3b72dad1963de2d79a3ad8584;p=jalview.git diff --git a/src/jalview/util/Format.java b/src/jalview/util/Format.java index dda9cde..d85013c 100755 --- a/src/jalview/util/Format.java +++ b/src/jalview/util/Format.java @@ -1,629 +1,938 @@ -/* - * Cay S. Horstmann & Gary Cornell, Core Java - * Published By Sun Microsystems Press/Prentice-Hall - * Copyright (C) 1997 Sun Microsystems Inc. - * All Rights Reserved. - * - * Permission to use, copy, modify, and distribute this - * software and its documentation for NON-COMMERCIAL purposes - * and without fee is hereby granted provided that this - * copyright notice appears in all copies. - * - * THE AUTHORS AND PUBLISHER MAKE NO REPRESENTATIONS OR - * WARRANTIES ABOUT THE SUITABILITY OF THE SOFTWARE, EITHER - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE - * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A - * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. THE AUTHORS - * AND PUBLISHER SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED - * BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING - * THIS SOFTWARE OR ITS DERIVATIVES. - */ - -/** - * A class for formatting numbers that follows printf conventions. - * Also implements C-like atoi and atof functions - * @version 1.03 25 Oct 1997 - * @author Cay Horstmann - */ - -package jalview.util; - -import java.io.*; - -public class Format { /** - * Formats the number following printf conventions. - * Main limitation: Can only handle one format parameter at a time - * Use multiple Format objects to format more than one number - * @param s the format string following printf conventions - * The string has a prefix, a format code and a suffix. The prefix and suffix - * become part of the formatted output. The format code directs the - * formatting of the (single) parameter to be formatted. The code has the - * following structure - * - * @exception IllegalArgumentException if bad format - */ - - public static String getHexString(java.awt.Color color) - { - String r, g, b; - r = Integer.toHexString(color.getRed()); - if (r.length() < 2) - r = "0" + r; - g = Integer.toHexString(color.getGreen()); - if (g.length() < 2) - g = "0" + g; - b = Integer.toHexString(color.getBlue()); - if (b.length() < 2) - b = "0" + b; - - return r+g+b; - } - - - public Format(String s) { - width = 0; - precision = -1; - pre = ""; - post = ""; - leading_zeroes = false; - show_plus = false; - alternate = false; - show_space = false; - left_align = false; - fmt = ' '; - - int state = 0; - int length = s.length(); - int parse_state = 0; - // 0 = prefix, 1 = flags, 2 = width, 3 = precision, - // 4 = format, 5 = end - int i = 0; - - while (parse_state == 0) { - if (i >= length) - parse_state = 5; - else if (s.charAt(i) == '%') { - if (i < length - 1) { - if (s.charAt(i + 1) == '%') { - pre = pre + '%'; - i++; - } else - parse_state = 1; - } else - throw new java.lang.IllegalArgumentException(); - } else - pre = pre + s.charAt(i); - i++; - } - while (parse_state == 1) { - if (i >= length) - parse_state = 5; - else if (s.charAt(i) == ' ') - show_space = true; - else if (s.charAt(i) == '-') - left_align = true; - else if (s.charAt(i) == '+') - show_plus = true; - else if (s.charAt(i) == '0') - leading_zeroes = true; - else if (s.charAt(i) == '#') - alternate = true; - else { - parse_state = 2; - i--; - } - i++; - } - while (parse_state == 2) { - if (i >= length) - parse_state = 5; - else if ('0' <= s.charAt(i) && s.charAt(i) <= '9') { - width = width * 10 + s.charAt(i) - '0'; - i++; - } else if (s.charAt(i) == '.') { - parse_state = 3; - precision = 0; - i++; - } else - parse_state = 4; - } - while (parse_state == 3) { - if (i >= length) - parse_state = 5; - else if ('0' <= s.charAt(i) && s.charAt(i) <= '9') { - precision = precision * 10 + s.charAt(i) - '0'; - i++; - } else - parse_state = 4; - } - if (parse_state == 4) { - if (i >= length) - parse_state = 5; - else - fmt = s.charAt(i); - i++; - } - if (i < length) - post = s.substring(i, length); - } - - /** - * prints a formatted number following printf conventions - * @param s a PrintStream - * @param fmt the format string - * @param x the double to print - */ - - public static void print(java.io.PrintStream s, String fmt, double x) { - s.print(new Format(fmt).form(x)); - } - - /** - * prints a formatted number following printf conventions - * @param s a PrintStream - * @param fmt the format string - * @param x the long to print - */ - public static void print(java.io.PrintStream s, String fmt, long x) { - s.print(new Format(fmt).form(x)); - } - - /** - * prints a formatted number following printf conventions - * @param s a PrintStream - * @param fmt the format string - * @param x the character to - */ - - public static void print(java.io.PrintStream s, String fmt, char x) { - s.print(new Format(fmt).form(x)); - } - - /** - * prints a formatted number following printf conventions - * @param s a PrintStream, fmt the format string - * @param x a string that represents the digits to print - */ - - public static void print(java.io.PrintStream s, String fmt, String x) { - s.print(new Format(fmt).form(x)); - } - - /** - * Converts a string of digits (decimal, octal or hex) to an integer - * @param s a string - * @return the numeric value of the prefix of s representing a base 10 integer - */ - - public static int atoi(String s) { - return (int)atol(s); - } - - /** - * Converts a string of digits (decimal, octal or hex) to a long integer - * @param s a string - * @return the numeric value of the prefix of s representing a base 10 integer - */ - - public static long atol(String s) { - int i = 0; - - while (i < s.length() && Character.isWhitespace(s.charAt(i))) - i++; - if (i < s.length() && s.charAt(i) == '0') { - if (i + 1 < s.length() && (s.charAt(i + 1) == 'x' || s.charAt(i + 1) == 'X')) - return parseLong(s.substring(i + 2), 16); - else - return parseLong(s, 8); - } else - return parseLong(s, 10); - } - - private static long parseLong(String s, int base) { - int i = 0; - int sign = 1; - long r = 0; - - while (i < s.length() && Character.isWhitespace(s.charAt(i))) - i++; - if (i < s.length() && s.charAt(i) == '-') { - sign = -1; - i++; - } else if (i < s.length() && s.charAt(i) == '+') { - i++; - } - while (i < s.length()) { - char ch = s.charAt(i); - if ('0' <= ch && ch < '0' + base) - r = r * base + ch - '0'; - else if ('A' <= ch && ch < 'A' + base - 10) - r = r * base + ch - 'A' + 10 ; - else if ('a' <= ch && ch < 'a' + base - 10) - r = r * base + ch - 'a' + 10 ; - else - return r * sign; - i++; - } - return r * sign; - } - - /** - * Converts a string of digits to an double - * @param s a string - */ - - public static double atof(String s) { - int i = 0; - int sign = 1; - double r = 0; // integer part - double f = 0; // fractional part - double p = 1; // exponent of fractional part - int state = 0; // 0 = int part, 1 = frac part - - while (i < s.length() && Character.isWhitespace(s.charAt(i))) - i++; - if (i < s.length() && s.charAt(i) == '-') { - sign = -1; - i++; - } else if (i < s.length() && s.charAt(i) == '+') { - i++; - } - while (i < s.length()) { - char ch = s.charAt(i); - if ('0' <= ch && ch <= '9') { - if (state == 0) - r = r * 10 + ch - '0'; - else if (state == 1) { - p = p / 10; - r = r + p * (ch - '0'); - } - } else if (ch == '.') { - if (state == 0) - state = 1; - else - return sign * r; - } else if (ch == 'e' || ch == 'E') { - long e = (int)parseLong(s.substring(i + 1), 10); - return sign * r * Math.pow(10, e); - } else - return sign * r; - i++; - } - return sign * r; - } - - /** - * Formats a double into a string (like sprintf in C) - * @param x the number to format - * @return the formatted string - * @exception IllegalArgumentException if bad argument - */ - - public String form(double x) { - String r; - if (precision < 0) - precision = 6; - int s = 1; - if (x < 0) { - x = -x; - s = -1; - } - if (fmt == 'f') - r = fixed_format(x); - else if (fmt == 'e' || fmt == 'E' || fmt == 'g' || fmt == 'G') - r = exp_format(x); - else - throw new java.lang.IllegalArgumentException(); - - return pad(sign(s, r)); - } - - /** - * Formats a long integer into a string (like sprintf in C) - * @param x the number to format - * @return the formatted string - */ - - public String form(long x) { - String r; - int s = 0; - if (fmt == 'd' || fmt == 'i') { - if (x < 0) { - r = ("" + x).substring(1); - s = -1; - } else { - r = "" + x; - s = 1; - } - } else if (fmt == 'o') - r = convert(x, 3, 7, "01234567"); - else if (fmt == 'x') - r = convert(x, 4, 15, "0123456789abcdef"); - else if (fmt == 'X') - r = convert(x, 4, 15, "0123456789ABCDEF"); - else - throw new java.lang.IllegalArgumentException(); - - return pad(sign(s, r)); - } - - /** - * Formats a character into a string (like sprintf in C) - * @param x the value to format - * @return the formatted string - */ - - public String form(char c) { - if (fmt != 'c') - throw new java.lang.IllegalArgumentException(); - - String r = "" + c; - return pad(r); - } - - /** - * Formats a string into a larger string (like sprintf in C) - * @param x the value to format - * @return the formatted string - */ - - public String form(String s) { - if (fmt != 's') - throw new java.lang.IllegalArgumentException(); - if (precision >= 0) - s = s.substring(0, precision); - return pad(s); - } - - - /** - * a test stub for the format class - */ - - public static void main(String[] a) { - double x = 1.23456789012; - double y = 123; - double z = 1.2345e30; - double w = 1.02; - double u = 1.234e-5; - int d = 0xCAFE; - Format.print(System.out, "x = |%f|\n", x); - Format.print(System.out, "u = |%20f|\n", u); - Format.print(System.out, "x = |% .5f|\n", x); - Format.print(System.out, "w = |%20.5f|\n", w); - Format.print(System.out, "x = |%020.5f|\n", x); - Format.print(System.out, "x = |%+20.5f|\n", x); - Format.print(System.out, "x = |%+020.5f|\n", x); - Format.print(System.out, "x = |% 020.5f|\n", x); - Format.print(System.out, "y = |%#+20.5f|\n", y); - Format.print(System.out, "y = |%-+20.5f|\n", y); - Format.print(System.out, "z = |%20.5f|\n", z); - - Format.print(System.out, "x = |%e|\n", x); - Format.print(System.out, "u = |%20e|\n", u); - Format.print(System.out, "x = |% .5e|\n", x); - Format.print(System.out, "w = |%20.5e|\n", w); - Format.print(System.out, "x = |%020.5e|\n", x); - Format.print(System.out, "x = |%+20.5e|\n", x); - Format.print(System.out, "x = |%+020.5e|\n", x); - Format.print(System.out, "x = |% 020.5e|\n", x); - Format.print(System.out, "y = |%#+20.5e|\n", y); - Format.print(System.out, "y = |%-+20.5e|\n", y); - - Format.print(System.out, "x = |%g|\n", x); - Format.print(System.out, "z = |%g|\n", z); - Format.print(System.out, "w = |%g|\n", w); - Format.print(System.out, "u = |%g|\n", u); - Format.print(System.out, "y = |%.2g|\n", y); - Format.print(System.out, "y = |%#.2g|\n", y); - - Format.print(System.out, "d = |%d|\n", d); - Format.print(System.out, "d = |%20d|\n", d); - Format.print(System.out, "d = |%020d|\n", d); - Format.print(System.out, "d = |%+20d|\n", d); - Format.print(System.out, "d = |% 020d|\n", d); - Format.print(System.out, "d = |%-20d|\n", d); - Format.print(System.out, "d = |%20.8d|\n", d); - Format.print(System.out, "d = |%x|\n", d); - Format.print(System.out, "d = |%20X|\n", d); - Format.print(System.out, "d = |%#20x|\n", d); - Format.print(System.out, "d = |%020X|\n", d); - Format.print(System.out, "d = |%20.8x|\n", d); - Format.print(System.out, "d = |%o|\n", d); - Format.print(System.out, "d = |%020o|\n", d); - Format.print(System.out, "d = |%#20o|\n", d); - Format.print(System.out, "d = |%#020o|\n", d); - Format.print(System.out, "d = |%20.12o|\n", d); - - Format.print(System.out, "s = |%-20s|\n", "Hello"); - Format.print(System.out, "s = |%-20c|\n", '!'); - - // regression test to confirm fix of reported bugs - - Format.print(System.out, "|%i|\n", Long.MIN_VALUE); - - Format.print(System.out, "|%6.2e|\n", 0.0); - Format.print(System.out, "|%6.2g|\n", 0.0); - - Format.print(System.out, "|%6.2f|\n", 9.99); - Format.print(System.out, "|%6.2f|\n", 9.999); - - Format.print(System.out, "|%6.0f|\n", 9.999); - } - - private static String repeat(char c, int n) { - if (n <= 0) - return ""; - StringBuffer s = new StringBuffer(n); - for (int i = 0; i < n; i++) - s.append(c); - return s.toString(); - } - - private static String convert(long x, int n, int m, String d) { - if (x == 0) - return "0"; - String r = ""; - while (x != 0) { - r = d.charAt((int)(x & m)) + r; - x = x >>> n; - } - return r; - } - - private String pad(String r) { - String p = repeat(' ', width - r.length()); - if (left_align) - return pre + r + p + post; - else - return pre + p + r + post; - } - - private String sign(int s, String r) { - String p = ""; - if (s < 0) - p = "-"; - else if (s > 0) { - if (show_plus) - p = "+"; - else if (show_space) - p = " "; - } else { - if (fmt == 'o' && alternate && r.length() > 0 && r.charAt(0) != '0') - p = "0"; - else if (fmt == 'x' && alternate) - p = "0x"; - else if (fmt == 'X' && alternate) - p = "0X"; - } - int w = 0; - if (leading_zeroes) - w = width; - else if ((fmt == 'd' || fmt == 'i' || fmt == 'x' || fmt == 'X' || fmt == 'o') - && precision > 0) - w = precision; - - return p + repeat('0', w - p.length() - r.length()) + r; - } - - private String fixed_format(double d) { - boolean removeTrailing - = (fmt == 'G' || fmt == 'g') && !alternate; - // remove trailing zeroes and decimal point - - if (d > 0x7FFFFFFFFFFFFFFFL) - return exp_format(d); - if (precision == 0) - return (long)(d + 0.5) + (removeTrailing ? "" : "."); - - long whole = (long)d; - double fr = d - whole; // fractional part - if (fr >= 1 || fr < 0) - return exp_format(d); - - double factor = 1; - String leading_zeroes = ""; - for (int i = 1; i <= precision && factor <= 0x7FFFFFFFFFFFFFFFL; i++) { - factor *= 10; - leading_zeroes = leading_zeroes + "0"; - } - long l = (long) (factor * fr + 0.5); - if (l >= factor) { - l = 0; - whole++; - } // CSH 10-25-97 - - String z = leading_zeroes + l; - z = "." + z.substring(z.length() - precision, z.length()); - - if (removeTrailing) { - int t = z.length() - 1; - while (t >= 0 && z.charAt(t) == '0') - t--; - if (t >= 0 && z.charAt(t) == '.') - t--; - z = z.substring(0, t + 1); - } - - return whole + z; - } - - private String exp_format(double d) { - String f = ""; - int e = 0; - double dd = d; - double factor = 1; - if (d != 0) { - while (dd > 10) { - e++; - factor /= 10; - dd = dd / 10; - } - while (dd < 1) { - e--; - factor *= 10; - dd = dd * 10; - } - } - if ((fmt == 'g' || fmt == 'G') && e >= -4 && e < precision) - return fixed_format(d); - - d = d * factor; - f = f + fixed_format(d); - - if (fmt == 'e' || fmt == 'g') - f = f + "e"; - else - f = f + "E"; - - String p = "000"; - if (e >= 0) { - f = f + "+"; - p = p + e; - } else { - f = f + "-"; - p = p + (-e); - } - - return f + p.substring(p.length() - 3, p.length()); - } - - private int width; - private int precision; - private String pre; - private String post; - private boolean leading_zeroes; - private boolean show_plus; - private boolean alternate; - private boolean show_space; - private boolean left_align; - private char fmt; // one of cdeEfgGiosxXos -} - - - - - +/* + * Jalview - A Sequence Alignment Editor and Viewer (Version 2.7) + * Copyright (C) 2011 J Procter, AM Waterhouse, J Engelhardt, LM Lui, 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 . + */ +/** + * A class for formatting numbers that follows printf conventions. + * Also implements C-like atoi and atof functions + * @version 1.03 25 Oct 1997 + * @author Cay Horstmann + */ +package jalview.util; + +/** + * DOCUMENT ME! + * + * @author $author$ + * @version $Revision$ + */ +public class Format +{ + private int width; + + private int precision; + + private String pre; + + private String post; + + private boolean leading_zeroes; + + private boolean show_plus; + + private boolean alternate; + + private boolean show_space; + + private boolean left_align; + + private char fmt; // one of cdeEfgGiosxXos + + /** + * Creates a new Format object. + * + * @param s + * DOCUMENT ME! + */ + public Format(String s) + { + width = 0; + precision = -1; + pre = ""; + post = ""; + leading_zeroes = false; + show_plus = false; + alternate = false; + show_space = false; + left_align = false; + fmt = ' '; + + int length = s.length(); + int parse_state = 0; + + // 0 = prefix, 1 = flags, 2 = width, 3 = precision, + // 4 = format, 5 = end + int i = 0; + + while (parse_state == 0) + { + if (i >= length) + { + parse_state = 5; + } + else if (s.charAt(i) == '%') + { + if (i < (length - 1)) + { + if (s.charAt(i + 1) == '%') + { + pre = pre + '%'; + i++; + } + else + { + parse_state = 1; + } + } + else + { + throw new java.lang.IllegalArgumentException(); + } + } + else + { + pre = pre + s.charAt(i); + } + + i++; + } + + while (parse_state == 1) + { + if (i >= length) + { + parse_state = 5; + } + else if (s.charAt(i) == ' ') + { + show_space = true; + } + else if (s.charAt(i) == '-') + { + left_align = true; + } + else if (s.charAt(i) == '+') + { + show_plus = true; + } + else if (s.charAt(i) == '0') + { + leading_zeroes = true; + } + else if (s.charAt(i) == '#') + { + alternate = true; + } + else + { + parse_state = 2; + i--; + } + + i++; + } + + while (parse_state == 2) + { + if (i >= length) + { + parse_state = 5; + } + else if (('0' <= s.charAt(i)) && (s.charAt(i) <= '9')) + { + width = ((width * 10) + s.charAt(i)) - '0'; + i++; + } + else if (s.charAt(i) == '.') + { + parse_state = 3; + precision = 0; + i++; + } + else + { + parse_state = 4; + } + } + + while (parse_state == 3) + { + if (i >= length) + { + parse_state = 5; + } + else if (('0' <= s.charAt(i)) && (s.charAt(i) <= '9')) + { + precision = ((precision * 10) + s.charAt(i)) - '0'; + i++; + } + else + { + parse_state = 4; + } + } + + if (parse_state == 4) + { + if (i >= length) + { + parse_state = 5; + } + else + { + fmt = s.charAt(i); + } + + i++; + } + + if (i < length) + { + post = s.substring(i, length); + } + } + + /** + * Formats the number following printf conventions. Main limitation: Can only + * handle one format parameter at a time Use multiple Format objects to format + * more than one number + * + * @param s + * the format string following printf conventions The string has a + * prefix, a format code and a suffix. The prefix and suffix become + * part of the formatted output. The format code directs the + * formatting of the (single) parameter to be formatted. The code has + * the following structure + * + * @exception IllegalArgumentException + * if bad format + * + */ + public static String getHexString(java.awt.Color color) + { + String r; + String g; + String b; + r = Integer.toHexString(color.getRed()); + + if (r.length() < 2) + { + r = "0" + r; + } + + g = Integer.toHexString(color.getGreen()); + + if (g.length() < 2) + { + g = "0" + g; + } + + b = Integer.toHexString(color.getBlue()); + + if (b.length() < 2) + { + b = "0" + b; + } + + return r + g + b; + } + + /** + * prints a formatted number following printf conventions + * + * @param s + * a PrintStream + * @param fmt + * the format string + * @param x + * the double to print + */ + public static void print(java.io.PrintStream s, String fmt, double x) + { + s.print(new Format(fmt).form(x)); + } + + /** + * prints a formatted number following printf conventions + * + * @param s + * a PrintStream + * @param fmt + * the format string + * @param x + * the long to print + */ + public static void print(java.io.PrintStream s, String fmt, long x) + { + s.print(new Format(fmt).form(x)); + } + + /** + * prints a formatted number following printf conventions + * + * @param s + * a PrintStream + * @param fmt + * the format string + * @param x + * the character to + */ + public static void print(java.io.PrintStream s, String fmt, char x) + { + s.print(new Format(fmt).form(x)); + } + + /** + * prints a formatted number following printf conventions + * + * @param s + * a PrintStream, fmt the format string + * @param x + * a string that represents the digits to print + */ + public static void print(java.io.PrintStream s, String fmt, String x) + { + s.print(new Format(fmt).form(x)); + } + + /** + * Converts a string of digits (decimal, octal or hex) to an integer + * + * @param s + * a string + * @return the numeric value of the prefix of s representing a base 10 integer + */ + public static int atoi(String s) + { + return (int) atol(s); + } + + /** + * Converts a string of digits (decimal, octal or hex) to a long integer + * + * @param s + * a string + * @return the numeric value of the prefix of s representing a base 10 integer + */ + public static long atol(String s) + { + int i = 0; + + while ((i < s.length()) && Character.isWhitespace(s.charAt(i))) + { + i++; + } + + if ((i < s.length()) && (s.charAt(i) == '0')) + { + if (((i + 1) < s.length()) + && ((s.charAt(i + 1) == 'x') || (s.charAt(i + 1) == 'X'))) + { + return parseLong(s.substring(i + 2), 16); + } + else + { + return parseLong(s, 8); + } + } + else + { + return parseLong(s, 10); + } + } + + /** + * DOCUMENT ME! + * + * @param s + * DOCUMENT ME! + * @param base + * DOCUMENT ME! + * + * @return DOCUMENT ME! + */ + private static long parseLong(String s, int base) + { + int i = 0; + int sign = 1; + long r = 0; + + while ((i < s.length()) && Character.isWhitespace(s.charAt(i))) + { + i++; + } + + if ((i < s.length()) && (s.charAt(i) == '-')) + { + sign = -1; + i++; + } + else if ((i < s.length()) && (s.charAt(i) == '+')) + { + i++; + } + + while (i < s.length()) + { + char ch = s.charAt(i); + + if (('0' <= ch) && (ch < ('0' + base))) + { + r = ((r * base) + ch) - '0'; + } + else if (('A' <= ch) && (ch < (('A' + base) - 10))) + { + r = ((r * base) + ch) - 'A' + 10; + } + else if (('a' <= ch) && (ch < (('a' + base) - 10))) + { + r = ((r * base) + ch) - 'a' + 10; + } + else + { + return r * sign; + } + + i++; + } + + return r * sign; + } + + /** + * Converts a string of digits to an double + * + * @param s + * a string + */ + public static double atof(String s) + { + int i = 0; + int sign = 1; + double r = 0; // integer part + // double f = 0; // fractional part + double p = 1; // exponent of fractional part + int state = 0; // 0 = int part, 1 = frac part + + while ((i < s.length()) && Character.isWhitespace(s.charAt(i))) + { + i++; + } + + if ((i < s.length()) && (s.charAt(i) == '-')) + { + sign = -1; + i++; + } + else if ((i < s.length()) && (s.charAt(i) == '+')) + { + i++; + } + + while (i < s.length()) + { + char ch = s.charAt(i); + + if (('0' <= ch) && (ch <= '9')) + { + if (state == 0) + { + r = ((r * 10) + ch) - '0'; + } + else if (state == 1) + { + p = p / 10; + r = r + (p * (ch - '0')); + } + } + else if (ch == '.') + { + if (state == 0) + { + state = 1; + } + else + { + return sign * r; + } + } + else if ((ch == 'e') || (ch == 'E')) + { + long e = (int) parseLong(s.substring(i + 1), 10); + + return sign * r * Math.pow(10, e); + } + else + { + return sign * r; + } + + i++; + } + + return sign * r; + } + + /** + * Formats a double into a string (like sprintf in C) + * + * @param x + * the number to format + * @return the formatted string + * @exception IllegalArgumentException + * if bad argument + */ + public String form(double x) + { + String r; + + if (precision < 0) + { + precision = 6; + } + + int s = 1; + + if (x < 0) + { + x = -x; + s = -1; + } + + if (fmt == 'f') + { + r = fixed_format(x); + } + else if ((fmt == 'e') || (fmt == 'E') || (fmt == 'g') || (fmt == 'G')) + { + r = exp_format(x); + } + else + { + throw new java.lang.IllegalArgumentException(); + } + + return pad(sign(s, r)); + } + + /** + * Formats a long integer into a string (like sprintf in C) + * + * @param x + * the number to format + * @return the formatted string + */ + public String form(long x) + { + String r; + int s = 0; + + if ((fmt == 'd') || (fmt == 'i')) + { + if (x < 0) + { + r = ("" + x).substring(1); + s = -1; + } + else + { + r = "" + x; + s = 1; + } + } + else if (fmt == 'o') + { + r = convert(x, 3, 7, "01234567"); + } + else if (fmt == 'x') + { + r = convert(x, 4, 15, "0123456789abcdef"); + } + else if (fmt == 'X') + { + r = convert(x, 4, 15, "0123456789ABCDEF"); + } + else + { + throw new java.lang.IllegalArgumentException(); + } + + return pad(sign(s, r)); + } + + /** + * Formats a character into a string (like sprintf in C) + * + * @param x + * the value to format + * @return the formatted string + */ + public String form(char c) + { + if (fmt != 'c') + { + throw new java.lang.IllegalArgumentException(); + } + + String r = "" + c; + + return pad(r); + } + + /** + * Formats a string into a larger string (like sprintf in C) + * + * @param x + * the value to format + * @return the formatted string + */ + public String form(String s) + { + if (fmt != 's') + { + throw new java.lang.IllegalArgumentException(); + } + + if (precision >= 0) + { + s = s.substring(0, precision); + } + + return pad(s); + } + + /** + * DOCUMENT ME! + * + * @param c + * DOCUMENT ME! + * @param n + * DOCUMENT ME! + * + * @return DOCUMENT ME! + */ + private static String repeat(char c, int n) + { + if (n <= 0) + { + return ""; + } + + StringBuffer s = new StringBuffer(n); + + for (int i = 0; i < n; i++) + { + s.append(c); + } + + return s.toString(); + } + + /** + * DOCUMENT ME! + * + * @param x + * DOCUMENT ME! + * @param n + * DOCUMENT ME! + * @param m + * DOCUMENT ME! + * @param d + * DOCUMENT ME! + * + * @return DOCUMENT ME! + */ + private static String convert(long x, int n, int m, String d) + { + if (x == 0) + { + return "0"; + } + + String r = ""; + + while (x != 0) + { + r = d.charAt((int) (x & m)) + r; + x = x >>> n; + } + + return r; + } + + /** + * DOCUMENT ME! + * + * @param r + * DOCUMENT ME! + * + * @return DOCUMENT ME! + */ + private String pad(String r) + { + String p = repeat(' ', width - r.length()); + + if (left_align) + { + return pre + r + p + post; + } + else + { + return pre + p + r + post; + } + } + + /** + * DOCUMENT ME! + * + * @param s + * DOCUMENT ME! + * @param r + * DOCUMENT ME! + * + * @return DOCUMENT ME! + */ + private String sign(int s, String r) + { + String p = ""; + + if (s < 0) + { + p = "-"; + } + else if (s > 0) + { + if (show_plus) + { + p = "+"; + } + else if (show_space) + { + p = " "; + } + } + else + { + if ((fmt == 'o') && alternate && (r.length() > 0) + && (r.charAt(0) != '0')) + { + p = "0"; + } + else if ((fmt == 'x') && alternate) + { + p = "0x"; + } + else if ((fmt == 'X') && alternate) + { + p = "0X"; + } + } + + int w = 0; + + if (leading_zeroes) + { + w = width; + } + else if (((fmt == 'd') || (fmt == 'i') || (fmt == 'x') || (fmt == 'X') || (fmt == 'o')) + && (precision > 0)) + { + w = precision; + } + + return p + repeat('0', w - p.length() - r.length()) + r; + } + + /** + * DOCUMENT ME! + * + * @param d + * DOCUMENT ME! + * + * @return DOCUMENT ME! + */ + private String fixed_format(double d) + { + boolean removeTrailing = ((fmt == 'G') || (fmt == 'g')) && !alternate; + + // remove trailing zeroes and decimal point + if (d > 0x7FFFFFFFFFFFFFFFL) + { + return exp_format(d); + } + + if (precision == 0) + { + return (long) (d + 0.5) + (removeTrailing ? "" : "."); + } + + long whole = (long) d; + double fr = d - whole; // fractional part + + if ((fr >= 1) || (fr < 0)) + { + return exp_format(d); + } + + double factor = 1; + String leading_zeroes = ""; + + for (int i = 1; (i <= precision) && (factor <= 0x7FFFFFFFFFFFFFFFL); i++) + { + factor *= 10; + leading_zeroes = leading_zeroes + "0"; + } + + long l = (long) ((factor * fr) + 0.5); + + if (l >= factor) + { + l = 0; + whole++; + } + + // CSH 10-25-97 + String z = leading_zeroes + l; + z = "." + z.substring(z.length() - precision, z.length()); + + if (removeTrailing) + { + int t = z.length() - 1; + + while ((t >= 0) && (z.charAt(t) == '0')) + { + t--; + } + + if ((t >= 0) && (z.charAt(t) == '.')) + { + t--; + } + + z = z.substring(0, t + 1); + } + + return whole + z; + } + + /** + * DOCUMENT ME! + * + * @param d + * DOCUMENT ME! + * + * @return DOCUMENT ME! + */ + private String exp_format(double d) + { + String f = ""; + int e = 0; + double dd = d; + double factor = 1; + + if (d != 0) + { + while (dd > 10) + { + e++; + factor /= 10; + dd = dd / 10; + } + + while (dd < 1) + { + e--; + factor *= 10; + dd = dd * 10; + } + } + + if (((fmt == 'g') || (fmt == 'G')) && (e >= -4) && (e < precision)) + { + return fixed_format(d); + } + + d = d * factor; + f = f + fixed_format(d); + + if ((fmt == 'e') || (fmt == 'g')) + { + f = f + "e"; + } + else + { + f = f + "E"; + } + + String p = "000"; + + if (e >= 0) + { + f = f + "+"; + p = p + e; + } + else + { + f = f + "-"; + p = p + (-e); + } + + return f + p.substring(p.length() - 3, p.length()); + } +}