* @version 1.03 25 Oct 1997\r
* @author Cay Horstmann\r
*/\r
-\r
-\r
package jalview.util;\r
\r
import java.io.*;\r
\r
+\r
public class Format {\r
+ private int width;\r
+ private int precision;\r
+ private String pre;\r
+ private String post;\r
+ private boolean leading_zeroes;\r
+ private boolean show_plus;\r
+ private boolean alternate;\r
+ private boolean show_space;\r
+ private boolean left_align;\r
+ private char fmt; // one of cdeEfgGiosxXos\r
+\r
+ public Format(String s) {\r
+ width = 0;\r
+ precision = -1;\r
+ pre = "";\r
+ post = "";\r
+ leading_zeroes = false;\r
+ show_plus = false;\r
+ alternate = false;\r
+ show_space = false;\r
+ left_align = false;\r
+ fmt = ' ';\r
+\r
+ int state = 0;\r
+ int length = s.length();\r
+ int parse_state = 0;\r
+\r
+ // 0 = prefix, 1 = flags, 2 = width, 3 = precision,\r
+ // 4 = format, 5 = end\r
+ int i = 0;\r
+\r
+ while (parse_state == 0) {\r
+ if (i >= length) {\r
+ parse_state = 5;\r
+ } else if (s.charAt(i) == '%') {\r
+ if (i < (length - 1)) {\r
+ if (s.charAt(i + 1) == '%') {\r
+ pre = pre + '%';\r
+ i++;\r
+ } else {\r
+ parse_state = 1;\r
+ }\r
+ } else {\r
+ throw new java.lang.IllegalArgumentException();\r
+ }\r
+ } else {\r
+ pre = pre + s.charAt(i);\r
+ }\r
+\r
+ i++;\r
+ }\r
+\r
+ while (parse_state == 1) {\r
+ if (i >= length) {\r
+ parse_state = 5;\r
+ } else if (s.charAt(i) == ' ') {\r
+ show_space = true;\r
+ } else if (s.charAt(i) == '-') {\r
+ left_align = true;\r
+ } else if (s.charAt(i) == '+') {\r
+ show_plus = true;\r
+ } else if (s.charAt(i) == '0') {\r
+ leading_zeroes = true;\r
+ } else if (s.charAt(i) == '#') {\r
+ alternate = true;\r
+ } else {\r
+ parse_state = 2;\r
+ i--;\r
+ }\r
+\r
+ i++;\r
+ }\r
+\r
+ while (parse_state == 2) {\r
+ if (i >= length) {\r
+ parse_state = 5;\r
+ } else if (('0' <= s.charAt(i)) && (s.charAt(i) <= '9')) {\r
+ width = ((width * 10) + s.charAt(i)) - '0';\r
+ i++;\r
+ } else if (s.charAt(i) == '.') {\r
+ parse_state = 3;\r
+ precision = 0;\r
+ i++;\r
+ } else {\r
+ parse_state = 4;\r
+ }\r
+ }\r
+\r
+ while (parse_state == 3) {\r
+ if (i >= length) {\r
+ parse_state = 5;\r
+ } else if (('0' <= s.charAt(i)) && (s.charAt(i) <= '9')) {\r
+ precision = ((precision * 10) + s.charAt(i)) - '0';\r
+ i++;\r
+ } else {\r
+ parse_state = 4;\r
+ }\r
+ }\r
+\r
+ if (parse_state == 4) {\r
+ if (i >= length) {\r
+ parse_state = 5;\r
+ } else {\r
+ fmt = s.charAt(i);\r
+ }\r
+\r
+ i++;\r
+ }\r
+\r
+ if (i < length) {\r
+ post = s.substring(i, length);\r
+ }\r
+ }\r
+\r
/**\r
* Formats the number following printf conventions.\r
* Main limitation: Can only handle one format parameter at a time\r
* @exception IllegalArgumentException if bad format\r
*\r
*/\r
+ public static String getHexString(java.awt.Color color) {\r
+ String r;\r
+ String g;\r
+ String b;\r
+ r = Integer.toHexString(color.getRed());\r
+\r
+ if (r.length() < 2) {\r
+ r = "0" + r;\r
+ }\r
\r
- public static String getHexString(java.awt.Color color)\r
- {\r
- String r, g, b;\r
- r = Integer.toHexString(color.getRed());\r
- if (r.length() < 2)\r
- r = "0" + r;\r
- g = Integer.toHexString(color.getGreen());\r
- if (g.length() < 2)\r
- g = "0" + g;\r
- b = Integer.toHexString(color.getBlue());\r
- if (b.length() < 2)\r
- b = "0" + b;\r
-\r
- return r+g+b;\r
- }\r
-\r
-\r
- public Format(String s) {\r
- width = 0;\r
- precision = -1;\r
- pre = "";\r
- post = "";\r
- leading_zeroes = false;\r
- show_plus = false;\r
- alternate = false;\r
- show_space = false;\r
- left_align = false;\r
- fmt = ' ';\r
-\r
- int state = 0;\r
- int length = s.length();\r
- int parse_state = 0;\r
- // 0 = prefix, 1 = flags, 2 = width, 3 = precision,\r
- // 4 = format, 5 = end\r
- int i = 0;\r
-\r
- while (parse_state == 0) {\r
- if (i >= length)\r
- parse_state = 5;\r
- else if (s.charAt(i) == '%') {\r
- if (i < length - 1) {\r
- if (s.charAt(i + 1) == '%') {\r
- pre = pre + '%';\r
- i++;\r
- } else\r
- parse_state = 1;\r
- } else\r
- throw new java.lang.IllegalArgumentException();\r
- } else\r
- pre = pre + s.charAt(i);\r
- i++;\r
+ g = Integer.toHexString(color.getGreen());\r
+\r
+ if (g.length() < 2) {\r
+ g = "0" + g;\r
+ }\r
+\r
+ b = Integer.toHexString(color.getBlue());\r
+\r
+ if (b.length() < 2) {\r
+ b = "0" + b;\r
+ }\r
+\r
+ return r + g + b;\r
}\r
- while (parse_state == 1) {\r
- if (i >= length)\r
- parse_state = 5;\r
- else if (s.charAt(i) == ' ')\r
- show_space = true;\r
- else if (s.charAt(i) == '-')\r
- left_align = true;\r
- else if (s.charAt(i) == '+')\r
- show_plus = true;\r
- else if (s.charAt(i) == '0')\r
- leading_zeroes = true;\r
- else if (s.charAt(i) == '#')\r
- alternate = true;\r
- else {\r
- parse_state = 2;\r
- i--;\r
- }\r
- i++;\r
+\r
+ /**\r
+ * prints a formatted number following printf conventions\r
+ * @param s a PrintStream\r
+ * @param fmt the format string\r
+ * @param x the double to print\r
+ */\r
+ public static void print(java.io.PrintStream s, String fmt, double x) {\r
+ s.print(new Format(fmt).form(x));\r
}\r
- while (parse_state == 2) {\r
- if (i >= length)\r
- parse_state = 5;\r
- else if ('0' <= s.charAt(i) && s.charAt(i) <= '9') {\r
- width = width * 10 + s.charAt(i) - '0';\r
- i++;\r
- } else if (s.charAt(i) == '.') {\r
- parse_state = 3;\r
- precision = 0;\r
- i++;\r
- } else\r
- parse_state = 4;\r
+\r
+ /**\r
+ * prints a formatted number following printf conventions\r
+ * @param s a PrintStream\r
+ * @param fmt the format string\r
+ * @param x the long to print\r
+ */\r
+ public static void print(java.io.PrintStream s, String fmt, long x) {\r
+ s.print(new Format(fmt).form(x));\r
}\r
- while (parse_state == 3) {\r
- if (i >= length)\r
- parse_state = 5;\r
- else if ('0' <= s.charAt(i) && s.charAt(i) <= '9') {\r
- precision = precision * 10 + s.charAt(i) - '0';\r
- i++;\r
- } else\r
- parse_state = 4;\r
+\r
+ /**\r
+ * prints a formatted number following printf conventions\r
+ * @param s a PrintStream\r
+ * @param fmt the format string\r
+ * @param x the character to\r
+ */\r
+ public static void print(java.io.PrintStream s, String fmt, char x) {\r
+ s.print(new Format(fmt).form(x));\r
}\r
- if (parse_state == 4) {\r
- if (i >= length)\r
- parse_state = 5;\r
- else\r
- fmt = s.charAt(i);\r
- i++;\r
+\r
+ /**\r
+ * prints a formatted number following printf conventions\r
+ * @param s a PrintStream, fmt the format string\r
+ * @param x a string that represents the digits to print\r
+ */\r
+ public static void print(java.io.PrintStream s, String fmt, String x) {\r
+ s.print(new Format(fmt).form(x));\r
}\r
- if (i < length)\r
- post = s.substring(i, length);\r
- }\r
-\r
- /**\r
- * prints a formatted number following printf conventions\r
- * @param s a PrintStream\r
- * @param fmt the format string\r
- * @param x the double to print\r
- */\r
-\r
- public static void print(java.io.PrintStream s, String fmt, double x) {\r
- s.print(new Format(fmt).form(x));\r
- }\r
-\r
- /**\r
- * prints a formatted number following printf conventions\r
- * @param s a PrintStream\r
- * @param fmt the format string\r
- * @param x the long to print\r
- */\r
- public static void print(java.io.PrintStream s, String fmt, long x) {\r
- s.print(new Format(fmt).form(x));\r
- }\r
-\r
- /**\r
- * prints a formatted number following printf conventions\r
- * @param s a PrintStream\r
- * @param fmt the format string\r
- * @param x the character to\r
- */\r
-\r
- public static void print(java.io.PrintStream s, String fmt, char x) {\r
- s.print(new Format(fmt).form(x));\r
- }\r
-\r
- /**\r
- * prints a formatted number following printf conventions\r
- * @param s a PrintStream, fmt the format string\r
- * @param x a string that represents the digits to print\r
- */\r
-\r
- public static void print(java.io.PrintStream s, String fmt, String x) {\r
- s.print(new Format(fmt).form(x));\r
- }\r
-\r
- /**\r
- * Converts a string of digits (decimal, octal or hex) to an integer\r
- * @param s a string\r
- * @return the numeric value of the prefix of s representing a base 10 integer\r
- */\r
-\r
- public static int atoi(String s) {\r
- return (int)atol(s);\r
- }\r
-\r
- /**\r
- * Converts a string of digits (decimal, octal or hex) to a long integer\r
- * @param s a string\r
- * @return the numeric value of the prefix of s representing a base 10 integer\r
- */\r
-\r
- public static long atol(String s) {\r
- int i = 0;\r
-\r
- while (i < s.length() && Character.isWhitespace(s.charAt(i)))\r
- i++;\r
- if (i < s.length() && s.charAt(i) == '0') {\r
- if (i + 1 < s.length() && (s.charAt(i + 1) == 'x' || s.charAt(i + 1) == 'X'))\r
- return parseLong(s.substring(i + 2), 16);\r
- else\r
- return parseLong(s, 8);\r
- } else\r
- return parseLong(s, 10);\r
- }\r
-\r
- private static long parseLong(String s, int base) {\r
- int i = 0;\r
- int sign = 1;\r
- long r = 0;\r
-\r
- while (i < s.length() && Character.isWhitespace(s.charAt(i)))\r
- i++;\r
- if (i < s.length() && s.charAt(i) == '-') {\r
- sign = -1;\r
- i++;\r
- } else if (i < s.length() && s.charAt(i) == '+') {\r
- i++;\r
+\r
+ /**\r
+ * Converts a string of digits (decimal, octal or hex) to an integer\r
+ * @param s a string\r
+ * @return the numeric value of the prefix of s representing a base 10 integer\r
+ */\r
+ public static int atoi(String s) {\r
+ return (int) atol(s);\r
}\r
- while (i < s.length()) {\r
- char ch = s.charAt(i);\r
- if ('0' <= ch && ch < '0' + base)\r
- r = r * base + ch - '0';\r
- else if ('A' <= ch && ch < 'A' + base - 10)\r
- r = r * base + ch - 'A' + 10 ;\r
- else if ('a' <= ch && ch < 'a' + base - 10)\r
- r = r * base + ch - 'a' + 10 ;\r
- else\r
- return r * sign;\r
- i++;\r
+\r
+ /**\r
+ * Converts a string of digits (decimal, octal or hex) to a long integer\r
+ * @param s a string\r
+ * @return the numeric value of the prefix of s representing a base 10 integer\r
+ */\r
+ public static long atol(String s) {\r
+ int i = 0;\r
+\r
+ while ((i < s.length()) && Character.isWhitespace(s.charAt(i)))\r
+ i++;\r
+\r
+ if ((i < s.length()) && (s.charAt(i) == '0')) {\r
+ if (((i + 1) < s.length()) &&\r
+ ((s.charAt(i + 1) == 'x') || (s.charAt(i + 1) == 'X'))) {\r
+ return parseLong(s.substring(i + 2), 16);\r
+ } else {\r
+ return parseLong(s, 8);\r
+ }\r
+ } else {\r
+ return parseLong(s, 10);\r
+ }\r
}\r
- return r * sign;\r
- }\r
-\r
- /**\r
- * Converts a string of digits to an double\r
- * @param s a string\r
- */\r
-\r
- public static double atof(String s) {\r
- int i = 0;\r
- int sign = 1;\r
- double r = 0; // integer part\r
- double f = 0; // fractional part\r
- double p = 1; // exponent of fractional part\r
- int state = 0; // 0 = int part, 1 = frac part\r
-\r
- while (i < s.length() && Character.isWhitespace(s.charAt(i)))\r
- i++;\r
- if (i < s.length() && s.charAt(i) == '-') {\r
- sign = -1;\r
- i++;\r
- } else if (i < s.length() && s.charAt(i) == '+') {\r
- i++;\r
+\r
+ private static long parseLong(String s, int base) {\r
+ int i = 0;\r
+ int sign = 1;\r
+ long r = 0;\r
+\r
+ while ((i < s.length()) && Character.isWhitespace(s.charAt(i)))\r
+ i++;\r
+\r
+ if ((i < s.length()) && (s.charAt(i) == '-')) {\r
+ sign = -1;\r
+ i++;\r
+ } else if ((i < s.length()) && (s.charAt(i) == '+')) {\r
+ i++;\r
+ }\r
+\r
+ while (i < s.length()) {\r
+ char ch = s.charAt(i);\r
+\r
+ if (('0' <= ch) && (ch < ('0' + base))) {\r
+ r = ((r * base) + ch) - '0';\r
+ } else if (('A' <= ch) && (ch < (('A' + base) - 10))) {\r
+ r = ((r * base) + ch) - 'A' + 10;\r
+ } else if (('a' <= ch) && (ch < (('a' + base) - 10))) {\r
+ r = ((r * base) + ch) - 'a' + 10;\r
+ } else {\r
+ return r * sign;\r
+ }\r
+\r
+ i++;\r
+ }\r
+\r
+ return r * sign;\r
}\r
- while (i < s.length()) {\r
- char ch = s.charAt(i);\r
- if ('0' <= ch && ch <= '9') {\r
- if (state == 0)\r
- r = r * 10 + ch - '0';\r
- else if (state == 1) {\r
- p = p / 10;\r
- r = r + p * (ch - '0');\r
- }\r
- } else if (ch == '.') {\r
- if (state == 0)\r
- state = 1;\r
- else\r
- return sign * r;\r
- } else if (ch == 'e' || ch == 'E') {\r
- long e = (int)parseLong(s.substring(i + 1), 10);\r
- return sign * r * Math.pow(10, e);\r
- } else\r
+\r
+ /**\r
+ * Converts a string of digits to an double\r
+ * @param s a string\r
+ */\r
+ public static double atof(String s) {\r
+ int i = 0;\r
+ int sign = 1;\r
+ double r = 0; // integer part\r
+ double f = 0; // fractional part\r
+ double p = 1; // exponent of fractional part\r
+ int state = 0; // 0 = int part, 1 = frac part\r
+\r
+ while ((i < s.length()) && Character.isWhitespace(s.charAt(i)))\r
+ i++;\r
+\r
+ if ((i < s.length()) && (s.charAt(i) == '-')) {\r
+ sign = -1;\r
+ i++;\r
+ } else if ((i < s.length()) && (s.charAt(i) == '+')) {\r
+ i++;\r
+ }\r
+\r
+ while (i < s.length()) {\r
+ char ch = s.charAt(i);\r
+\r
+ if (('0' <= ch) && (ch <= '9')) {\r
+ if (state == 0) {\r
+ r = ((r * 10) + ch) - '0';\r
+ } else if (state == 1) {\r
+ p = p / 10;\r
+ r = r + (p * (ch - '0'));\r
+ }\r
+ } else if (ch == '.') {\r
+ if (state == 0) {\r
+ state = 1;\r
+ } else {\r
+ return sign * r;\r
+ }\r
+ } else if ((ch == 'e') || (ch == 'E')) {\r
+ long e = (int) parseLong(s.substring(i + 1), 10);\r
+\r
+ return sign * r * Math.pow(10, e);\r
+ } else {\r
+ return sign * r;\r
+ }\r
+\r
+ i++;\r
+ }\r
+\r
return sign * r;\r
- i++;\r
}\r
- return sign * r;\r
- }\r
-\r
- /**\r
- * Formats a double into a string (like sprintf in C)\r
- * @param x the number to format\r
- * @return the formatted string\r
- * @exception IllegalArgumentException if bad argument\r
- */\r
-\r
- public String form(double x) {\r
- String r;\r
- if (precision < 0)\r
- precision = 6;\r
- int s = 1;\r
- if (x < 0) {\r
- x = -x;\r
- s = -1;\r
+\r
+ /**\r
+ * Formats a double into a string (like sprintf in C)\r
+ * @param x the number to format\r
+ * @return the formatted string\r
+ * @exception IllegalArgumentException if bad argument\r
+ */\r
+ public String form(double x) {\r
+ String r;\r
+\r
+ if (precision < 0) {\r
+ precision = 6;\r
+ }\r
+\r
+ int s = 1;\r
+\r
+ if (x < 0) {\r
+ x = -x;\r
+ s = -1;\r
+ }\r
+\r
+ if (fmt == 'f') {\r
+ r = fixed_format(x);\r
+ } else if ((fmt == 'e') || (fmt == 'E') || (fmt == 'g') ||\r
+ (fmt == 'G')) {\r
+ r = exp_format(x);\r
+ } else {\r
+ throw new java.lang.IllegalArgumentException();\r
+ }\r
+\r
+ return pad(sign(s, r));\r
}\r
- if (fmt == 'f')\r
- r = fixed_format(x);\r
- else if (fmt == 'e' || fmt == 'E' || fmt == 'g' || fmt == 'G')\r
- r = exp_format(x);\r
- else\r
- throw new java.lang.IllegalArgumentException();\r
-\r
- return pad(sign(s, r));\r
- }\r
-\r
- /**\r
- * Formats a long integer into a string (like sprintf in C)\r
- * @param x the number to format\r
- * @return the formatted string\r
- */\r
-\r
- public String form(long x) {\r
- String r;\r
- int s = 0;\r
- if (fmt == 'd' || fmt == 'i') {\r
- if (x < 0) {\r
- r = ("" + x).substring(1);\r
- s = -1;\r
- } else {\r
- r = "" + x;\r
- s = 1;\r
- }\r
- } else if (fmt == 'o')\r
- r = convert(x, 3, 7, "01234567");\r
- else if (fmt == 'x')\r
- r = convert(x, 4, 15, "0123456789abcdef");\r
- else if (fmt == 'X')\r
- r = convert(x, 4, 15, "0123456789ABCDEF");\r
- else\r
- throw new java.lang.IllegalArgumentException();\r
-\r
- return pad(sign(s, r));\r
- }\r
-\r
- /**\r
- * Formats a character into a string (like sprintf in C)\r
- * @param x the value to format\r
- * @return the formatted string\r
- */\r
-\r
- public String form(char c) {\r
- if (fmt != 'c')\r
- throw new java.lang.IllegalArgumentException();\r
-\r
- String r = "" + c;\r
- return pad(r);\r
- }\r
-\r
- /**\r
- * Formats a string into a larger string (like sprintf in C)\r
- * @param x the value to format\r
- * @return the formatted string\r
- */\r
-\r
- public String form(String s) {\r
- if (fmt != 's')\r
- throw new java.lang.IllegalArgumentException();\r
- if (precision >= 0)\r
- s = s.substring(0, precision);\r
- return pad(s);\r
- }\r
-\r
-\r
- /**\r
- * a test stub for the format class\r
- */\r
-\r
- public static void main(String[] a) {\r
- double x = 1.23456789012;\r
- double y = 123;\r
- double z = 1.2345e30;\r
- double w = 1.02;\r
- double u = 1.234e-5;\r
- int d = 0xCAFE;\r
- Format.print(System.out, "x = |%f|\n", x);\r
- Format.print(System.out, "u = |%20f|\n", u);\r
- Format.print(System.out, "x = |% .5f|\n", x);\r
- Format.print(System.out, "w = |%20.5f|\n", w);\r
- Format.print(System.out, "x = |%020.5f|\n", x);\r
- Format.print(System.out, "x = |%+20.5f|\n", x);\r
- Format.print(System.out, "x = |%+020.5f|\n", x);\r
- Format.print(System.out, "x = |% 020.5f|\n", x);\r
- Format.print(System.out, "y = |%#+20.5f|\n", y);\r
- Format.print(System.out, "y = |%-+20.5f|\n", y);\r
- Format.print(System.out, "z = |%20.5f|\n", z);\r
-\r
- Format.print(System.out, "x = |%e|\n", x);\r
- Format.print(System.out, "u = |%20e|\n", u);\r
- Format.print(System.out, "x = |% .5e|\n", x);\r
- Format.print(System.out, "w = |%20.5e|\n", w);\r
- Format.print(System.out, "x = |%020.5e|\n", x);\r
- Format.print(System.out, "x = |%+20.5e|\n", x);\r
- Format.print(System.out, "x = |%+020.5e|\n", x);\r
- Format.print(System.out, "x = |% 020.5e|\n", x);\r
- Format.print(System.out, "y = |%#+20.5e|\n", y);\r
- Format.print(System.out, "y = |%-+20.5e|\n", y);\r
-\r
- Format.print(System.out, "x = |%g|\n", x);\r
- Format.print(System.out, "z = |%g|\n", z);\r
- Format.print(System.out, "w = |%g|\n", w);\r
- Format.print(System.out, "u = |%g|\n", u);\r
- Format.print(System.out, "y = |%.2g|\n", y);\r
- Format.print(System.out, "y = |%#.2g|\n", y);\r
-\r
- Format.print(System.out, "d = |%d|\n", d);\r
- Format.print(System.out, "d = |%20d|\n", d);\r
- Format.print(System.out, "d = |%020d|\n", d);\r
- Format.print(System.out, "d = |%+20d|\n", d);\r
- Format.print(System.out, "d = |% 020d|\n", d);\r
- Format.print(System.out, "d = |%-20d|\n", d);\r
- Format.print(System.out, "d = |%20.8d|\n", d);\r
- Format.print(System.out, "d = |%x|\n", d);\r
- Format.print(System.out, "d = |%20X|\n", d);\r
- Format.print(System.out, "d = |%#20x|\n", d);\r
- Format.print(System.out, "d = |%020X|\n", d);\r
- Format.print(System.out, "d = |%20.8x|\n", d);\r
- Format.print(System.out, "d = |%o|\n", d);\r
- Format.print(System.out, "d = |%020o|\n", d);\r
- Format.print(System.out, "d = |%#20o|\n", d);\r
- Format.print(System.out, "d = |%#020o|\n", d);\r
- Format.print(System.out, "d = |%20.12o|\n", d);\r
-\r
- Format.print(System.out, "s = |%-20s|\n", "Hello");\r
- Format.print(System.out, "s = |%-20c|\n", '!');\r
-\r
- // regression test to confirm fix of reported bugs\r
-\r
- Format.print(System.out, "|%i|\n", Long.MIN_VALUE);\r
-\r
- Format.print(System.out, "|%6.2e|\n", 0.0);\r
- Format.print(System.out, "|%6.2g|\n", 0.0);\r
-\r
- Format.print(System.out, "|%6.2f|\n", 9.99);\r
- Format.print(System.out, "|%6.2f|\n", 9.999);\r
-\r
- Format.print(System.out, "|%6.0f|\n", 9.999);\r
- }\r
-\r
- private static String repeat(char c, int n) {\r
- if (n <= 0)\r
- return "";\r
- StringBuffer s = new StringBuffer(n);\r
- for (int i = 0; i < n; i++)\r
- s.append(c);\r
- return s.toString();\r
- }\r
-\r
- private static String convert(long x, int n, int m, String d) {\r
- if (x == 0)\r
- return "0";\r
- String r = "";\r
- while (x != 0) {\r
- r = d.charAt((int)(x & m)) + r;\r
- x = x >>> n;\r
+\r
+ /**\r
+ * Formats a long integer into a string (like sprintf in C)\r
+ * @param x the number to format\r
+ * @return the formatted string\r
+ */\r
+ public String form(long x) {\r
+ String r;\r
+ int s = 0;\r
+\r
+ if ((fmt == 'd') || (fmt == 'i')) {\r
+ if (x < 0) {\r
+ r = ("" + x).substring(1);\r
+ s = -1;\r
+ } else {\r
+ r = "" + x;\r
+ s = 1;\r
+ }\r
+ } else if (fmt == 'o') {\r
+ r = convert(x, 3, 7, "01234567");\r
+ } else if (fmt == 'x') {\r
+ r = convert(x, 4, 15, "0123456789abcdef");\r
+ } else if (fmt == 'X') {\r
+ r = convert(x, 4, 15, "0123456789ABCDEF");\r
+ } else {\r
+ throw new java.lang.IllegalArgumentException();\r
+ }\r
+\r
+ return pad(sign(s, r));\r
}\r
- return r;\r
- }\r
-\r
- private String pad(String r) {\r
- String p = repeat(' ', width - r.length());\r
- if (left_align)\r
- return pre + r + p + post;\r
- else\r
- return pre + p + r + post;\r
- }\r
-\r
- private String sign(int s, String r) {\r
- String p = "";\r
- if (s < 0)\r
- p = "-";\r
- else if (s > 0) {\r
- if (show_plus)\r
- p = "+";\r
- else if (show_space)\r
- p = " ";\r
- } else {\r
- if (fmt == 'o' && alternate && r.length() > 0 && r.charAt(0) != '0')\r
- p = "0";\r
- else if (fmt == 'x' && alternate)\r
- p = "0x";\r
- else if (fmt == 'X' && alternate)\r
- p = "0X";\r
+\r
+ /**\r
+ * Formats a character into a string (like sprintf in C)\r
+ * @param x the value to format\r
+ * @return the formatted string\r
+ */\r
+ public String form(char c) {\r
+ if (fmt != 'c') {\r
+ throw new java.lang.IllegalArgumentException();\r
+ }\r
+\r
+ String r = "" + c;\r
+\r
+ return pad(r);\r
}\r
- int w = 0;\r
- if (leading_zeroes)\r
- w = width;\r
- else if ((fmt == 'd' || fmt == 'i' || fmt == 'x' || fmt == 'X' || fmt == 'o')\r
- && precision > 0)\r
- w = precision;\r
-\r
- return p + repeat('0', w - p.length() - r.length()) + r;\r
- }\r
-\r
- private String fixed_format(double d) {\r
- boolean removeTrailing\r
- = (fmt == 'G' || fmt == 'g') && !alternate;\r
- // remove trailing zeroes and decimal point\r
-\r
- if (d > 0x7FFFFFFFFFFFFFFFL)\r
- return exp_format(d);\r
- if (precision == 0)\r
- return (long)(d + 0.5) + (removeTrailing ? "" : ".");\r
-\r
- long whole = (long)d;\r
- double fr = d - whole; // fractional part\r
- if (fr >= 1 || fr < 0)\r
- return exp_format(d);\r
-\r
- double factor = 1;\r
- String leading_zeroes = "";\r
- for (int i = 1; i <= precision && factor <= 0x7FFFFFFFFFFFFFFFL; i++) {\r
- factor *= 10;\r
- leading_zeroes = leading_zeroes + "0";\r
+\r
+ /**\r
+ * Formats a string into a larger string (like sprintf in C)\r
+ * @param x the value to format\r
+ * @return the formatted string\r
+ */\r
+ public String form(String s) {\r
+ if (fmt != 's') {\r
+ throw new java.lang.IllegalArgumentException();\r
+ }\r
+\r
+ if (precision >= 0) {\r
+ s = s.substring(0, precision);\r
+ }\r
+\r
+ return pad(s);\r
}\r
- long l = (long) (factor * fr + 0.5);\r
- if (l >= factor) {\r
- l = 0;\r
- whole++;\r
- } // CSH 10-25-97\r
-\r
- String z = leading_zeroes + l;\r
- z = "." + z.substring(z.length() - precision, z.length());\r
-\r
- if (removeTrailing) {\r
- int t = z.length() - 1;\r
- while (t >= 0 && z.charAt(t) == '0')\r
- t--;\r
- if (t >= 0 && z.charAt(t) == '.')\r
- t--;\r
- z = z.substring(0, t + 1);\r
+\r
+ /**\r
+ * a test stub for the format class\r
+ */\r
+ public static void main(String[] a) {\r
+ double x = 1.23456789012;\r
+ double y = 123;\r
+ double z = 1.2345e30;\r
+ double w = 1.02;\r
+ double u = 1.234e-5;\r
+ int d = 0xCAFE;\r
+ Format.print(System.out, "x = |%f|\n", x);\r
+ Format.print(System.out, "u = |%20f|\n", u);\r
+ Format.print(System.out, "x = |% .5f|\n", x);\r
+ Format.print(System.out, "w = |%20.5f|\n", w);\r
+ Format.print(System.out, "x = |%020.5f|\n", x);\r
+ Format.print(System.out, "x = |%+20.5f|\n", x);\r
+ Format.print(System.out, "x = |%+020.5f|\n", x);\r
+ Format.print(System.out, "x = |% 020.5f|\n", x);\r
+ Format.print(System.out, "y = |%#+20.5f|\n", y);\r
+ Format.print(System.out, "y = |%-+20.5f|\n", y);\r
+ Format.print(System.out, "z = |%20.5f|\n", z);\r
+\r
+ Format.print(System.out, "x = |%e|\n", x);\r
+ Format.print(System.out, "u = |%20e|\n", u);\r
+ Format.print(System.out, "x = |% .5e|\n", x);\r
+ Format.print(System.out, "w = |%20.5e|\n", w);\r
+ Format.print(System.out, "x = |%020.5e|\n", x);\r
+ Format.print(System.out, "x = |%+20.5e|\n", x);\r
+ Format.print(System.out, "x = |%+020.5e|\n", x);\r
+ Format.print(System.out, "x = |% 020.5e|\n", x);\r
+ Format.print(System.out, "y = |%#+20.5e|\n", y);\r
+ Format.print(System.out, "y = |%-+20.5e|\n", y);\r
+\r
+ Format.print(System.out, "x = |%g|\n", x);\r
+ Format.print(System.out, "z = |%g|\n", z);\r
+ Format.print(System.out, "w = |%g|\n", w);\r
+ Format.print(System.out, "u = |%g|\n", u);\r
+ Format.print(System.out, "y = |%.2g|\n", y);\r
+ Format.print(System.out, "y = |%#.2g|\n", y);\r
+\r
+ Format.print(System.out, "d = |%d|\n", d);\r
+ Format.print(System.out, "d = |%20d|\n", d);\r
+ Format.print(System.out, "d = |%020d|\n", d);\r
+ Format.print(System.out, "d = |%+20d|\n", d);\r
+ Format.print(System.out, "d = |% 020d|\n", d);\r
+ Format.print(System.out, "d = |%-20d|\n", d);\r
+ Format.print(System.out, "d = |%20.8d|\n", d);\r
+ Format.print(System.out, "d = |%x|\n", d);\r
+ Format.print(System.out, "d = |%20X|\n", d);\r
+ Format.print(System.out, "d = |%#20x|\n", d);\r
+ Format.print(System.out, "d = |%020X|\n", d);\r
+ Format.print(System.out, "d = |%20.8x|\n", d);\r
+ Format.print(System.out, "d = |%o|\n", d);\r
+ Format.print(System.out, "d = |%020o|\n", d);\r
+ Format.print(System.out, "d = |%#20o|\n", d);\r
+ Format.print(System.out, "d = |%#020o|\n", d);\r
+ Format.print(System.out, "d = |%20.12o|\n", d);\r
+\r
+ Format.print(System.out, "s = |%-20s|\n", "Hello");\r
+ Format.print(System.out, "s = |%-20c|\n", '!');\r
+\r
+ // regression test to confirm fix of reported bugs\r
+ Format.print(System.out, "|%i|\n", Long.MIN_VALUE);\r
+\r
+ Format.print(System.out, "|%6.2e|\n", 0.0);\r
+ Format.print(System.out, "|%6.2g|\n", 0.0);\r
+\r
+ Format.print(System.out, "|%6.2f|\n", 9.99);\r
+ Format.print(System.out, "|%6.2f|\n", 9.999);\r
+\r
+ Format.print(System.out, "|%6.0f|\n", 9.999);\r
}\r
\r
- return whole + z;\r
- }\r
-\r
- private String exp_format(double d) {\r
- String f = "";\r
- int e = 0;\r
- double dd = d;\r
- double factor = 1;\r
- if (d != 0) {\r
- while (dd > 10) {\r
- e++;\r
- factor /= 10;\r
- dd = dd / 10;\r
- }\r
- while (dd < 1) {\r
- e--;\r
- factor *= 10;\r
- dd = dd * 10;\r
- }\r
+ private static String repeat(char c, int n) {\r
+ if (n <= 0) {\r
+ return "";\r
+ }\r
+\r
+ StringBuffer s = new StringBuffer(n);\r
+\r
+ for (int i = 0; i < n; i++)\r
+ s.append(c);\r
+\r
+ return s.toString();\r
}\r
- if ((fmt == 'g' || fmt == 'G') && e >= -4 && e < precision)\r
- return fixed_format(d);\r
-\r
- d = d * factor;\r
- f = f + fixed_format(d);\r
-\r
- if (fmt == 'e' || fmt == 'g')\r
- f = f + "e";\r
- else\r
- f = f + "E";\r
-\r
- String p = "000";\r
- if (e >= 0) {\r
- f = f + "+";\r
- p = p + e;\r
- } else {\r
- f = f + "-";\r
- p = p + (-e);\r
+\r
+ private static String convert(long x, int n, int m, String d) {\r
+ if (x == 0) {\r
+ return "0";\r
+ }\r
+\r
+ String r = "";\r
+\r
+ while (x != 0) {\r
+ r = d.charAt((int) (x & m)) + r;\r
+ x = x >>> n;\r
+ }\r
+\r
+ return r;\r
}\r
\r
- return f + p.substring(p.length() - 3, p.length());\r
- }\r
-\r
- private int width;\r
- private int precision;\r
- private String pre;\r
- private String post;\r
- private boolean leading_zeroes;\r
- private boolean show_plus;\r
- private boolean alternate;\r
- private boolean show_space;\r
- private boolean left_align;\r
- private char fmt; // one of cdeEfgGiosxXos\r
-}\r
+ private String pad(String r) {\r
+ String p = repeat(' ', width - r.length());\r
+\r
+ if (left_align) {\r
+ return pre + r + p + post;\r
+ } else {\r
+ return pre + p + r + post;\r
+ }\r
+ }\r
\r
+ private String sign(int s, String r) {\r
+ String p = "";\r
+\r
+ if (s < 0) {\r
+ p = "-";\r
+ } else if (s > 0) {\r
+ if (show_plus) {\r
+ p = "+";\r
+ } else if (show_space) {\r
+ p = " ";\r
+ }\r
+ } else {\r
+ if ((fmt == 'o') && alternate && (r.length() > 0) &&\r
+ (r.charAt(0) != '0')) {\r
+ p = "0";\r
+ } else if ((fmt == 'x') && alternate) {\r
+ p = "0x";\r
+ } else if ((fmt == 'X') && alternate) {\r
+ p = "0X";\r
+ }\r
+ }\r
+\r
+ int w = 0;\r
+\r
+ if (leading_zeroes) {\r
+ w = width;\r
+ } else if (((fmt == 'd') || (fmt == 'i') || (fmt == 'x') ||\r
+ (fmt == 'X') || (fmt == 'o')) && (precision > 0)) {\r
+ w = precision;\r
+ }\r
+\r
+ return p + repeat('0', w - p.length() - r.length()) + r;\r
+ }\r
+\r
+ private String fixed_format(double d) {\r
+ boolean removeTrailing = ((fmt == 'G') || (fmt == 'g')) && !alternate;\r
\r
+ // remove trailing zeroes and decimal point\r
+ if (d > 0x7FFFFFFFFFFFFFFFL) {\r
+ return exp_format(d);\r
+ }\r
+\r
+ if (precision == 0) {\r
+ return (long) (d + 0.5) + (removeTrailing ? "" : ".");\r
+ }\r
+\r
+ long whole = (long) d;\r
+ double fr = d - whole; // fractional part\r
+\r
+ if ((fr >= 1) || (fr < 0)) {\r
+ return exp_format(d);\r
+ }\r
+\r
+ double factor = 1;\r
+ String leading_zeroes = "";\r
+\r
+ for (int i = 1; (i <= precision) && (factor <= 0x7FFFFFFFFFFFFFFFL);\r
+ i++) {\r
+ factor *= 10;\r
+ leading_zeroes = leading_zeroes + "0";\r
+ }\r
+\r
+ long l = (long) ((factor * fr) + 0.5);\r
+\r
+ if (l >= factor) {\r
+ l = 0;\r
+ whole++;\r
+ }\r
+ // CSH 10-25-97\r
\r
+ String z = leading_zeroes + l;\r
+ z = "." + z.substring(z.length() - precision, z.length());\r
\r
+ if (removeTrailing) {\r
+ int t = z.length() - 1;\r
\r
+ while ((t >= 0) && (z.charAt(t) == '0'))\r
+ t--;\r
+\r
+ if ((t >= 0) && (z.charAt(t) == '.')) {\r
+ t--;\r
+ }\r
+\r
+ z = z.substring(0, t + 1);\r
+ }\r
+\r
+ return whole + z;\r
+ }\r
+\r
+ private String exp_format(double d) {\r
+ String f = "";\r
+ int e = 0;\r
+ double dd = d;\r
+ double factor = 1;\r
+\r
+ if (d != 0) {\r
+ while (dd > 10) {\r
+ e++;\r
+ factor /= 10;\r
+ dd = dd / 10;\r
+ }\r
+\r
+ while (dd < 1) {\r
+ e--;\r
+ factor *= 10;\r
+ dd = dd * 10;\r
+ }\r
+ }\r
+\r
+ if (((fmt == 'g') || (fmt == 'G')) && (e >= -4) && (e < precision)) {\r
+ return fixed_format(d);\r
+ }\r
+\r
+ d = d * factor;\r
+ f = f + fixed_format(d);\r
+\r
+ if ((fmt == 'e') || (fmt == 'g')) {\r
+ f = f + "e";\r
+ } else {\r
+ f = f + "E";\r
+ }\r
+\r
+ String p = "000";\r
+\r
+ if (e >= 0) {\r
+ f = f + "+";\r
+ p = p + e;\r
+ } else {\r
+ f = f + "-";\r
+ p = p + (-e);\r
+ }\r
+\r
+ return f + p.substring(p.length() - 3, p.length());\r
+ }\r
+}\r
git://source.jalview.org / jalview.git / blobdiff