src/gcalccmd.vala

   1 /*
   2  * Copyright (C) 2009 Rich Burridge
   3  * Copyright (C) 2012 Robert Ancell
   4  *
   5  * This program is free software: you can redistribute it and/or modify it under
   6  * the terms of the GNU General Public License as published by the Free Software
   7  * Foundation, either version 2 of the License, or (at your option) any later
   8  * version. See http://www.gnu.org/copyleft/gpl.html the full text of the
   9  * license.
  10  */
  11
  12 private const int MAXLINE = 1024;
  13
  14 private static Serializer result_serializer;
  15
  16 static void solve (string equation)
  17 {
  18     var e = new Equation (equation);
  19     e.base = 10;
  20     e.wordlen = 32;
  21     e.angle_units = AngleUnit.DEGREES;
  22
  23     ErrorCode ret;
  24     var z = e.parse (out ret, null);
  25
  26     if (z != null)
  27         stdout.printf ("%s\n", result_serializer.to_string (z));
  28     else if (ret == ErrorCode.MP)
  29         stderr.printf ("Error %s\n", mp_get_error ());
  30     else
  31         stderr.printf ("Error %d\n", ret);
  32 }
  33
  34 public static int main (string[] args)
  35 {
  36     /* Seed random number generator. */
  37     var now = new DateTime.now_utc ();
  38     Random.set_seed (now.get_microsecond ());
  39
  40     Intl.setlocale (LocaleCategory.ALL, "");
  41
  42     result_serializer = new Serializer (DisplayFormat.AUTOMATIC, 10, 9);
  43
  44     var buffer = new char[1024];
  45     while (true)
  46     {
  47         stdout.printf ("> ");
  48         var line = stdin.gets (buffer);
  49
  50         line = line.strip ();
  51         if (line == null || line == "exit" || line == "quit" || line == "")
  52             break;
  53
  54         solve (line);
  55     }
  56
  57     return Posix.EXIT_SUCCESS;
  58 }