| 1 | #include <malloc.h> |
| 2 | #include <stdio.h> |
| 3 | #include <string.h> |
| 4 | |
| 5 | #include "format.h" |
| 6 | |
| 7 | /* global variables */ |
| 8 | |
| 9 | #define DEFAULT_FORMAT "=> %.6g\n" |
| 10 | char *_format = NULL; |
| 11 | #define DEFAULT_MINFORM "%.6g" |
| 12 | char *_minform = NULL; |
| 13 | |
| 14 | int _precision = 6; |
| 15 | |
| 16 | #define DEFAULT_PROMPT "=> " |
| 17 | char *_prompt = NULL; |
| 18 | |
| 19 | /* print function */ |
| 20 | |
| 21 | void set_precision (int precision) |
| 22 | { |
| 23 | _precision = precision; |
| 24 | } |
| 25 | |
| 26 | int get_precision () |
| 27 | { |
| 28 | return _precision; |
| 29 | } |
| 30 | |
| 31 | void set_prompt (char *prompt) |
| 32 | { |
| 33 | if (_prompt) { |
| 34 | free (_prompt); |
| 35 | } |
| 36 | _prompt = strdup (prompt); |
| 37 | } |
| 38 | |
| 39 | void set_format () |
| 40 | { |
| 41 | char buffer[128] = {0}; |
| 42 | sprintf (buffer, "%s%%.%dg\n", _prompt ? _prompt : DEFAULT_PROMPT, _precision); |
| 43 | if (_format) { |
| 44 | free (_format); |
| 45 | } |
| 46 | _format = strdup (buffer); |
| 47 | sprintf (buffer, "%%.%dg", _precision); |
| 48 | if (_minform) { |
| 49 | free (_minform); |
| 50 | } |
| 51 | _minform = strdup (buffer); |
| 52 | } |
| 53 | |
| 54 | void free_format () |
| 55 | { |
| 56 | if (_format) { |
| 57 | free (_format); |
| 58 | _format = NULL; |
| 59 | } |
| 60 | if (_minform) { |
| 61 | free (_minform); |
| 62 | _minform = NULL; |
| 63 | } |
| 64 | if (_prompt) { |
| 65 | free (_prompt); |
| 66 | _prompt = NULL; |
| 67 | } |
| 68 | } |
| 69 | |
| 70 | double print (double value) |
| 71 | { |
| 72 | fprintf (stdout, _format ? _format : DEFAULT_FORMAT, value); |
| 73 | fflush (stdout); |
| 74 | return value; |
| 75 | } |
| 76 | |
| 77 | double printl (double value) |
| 78 | { |
| 79 | fprintf (stdout, _minform ? _minform : DEFAULT_MINFORM, value); |
| 80 | fflush (stdout); |
| 81 | return value; |
| 82 | } |
| 83 | |
| 84 | /* vim: set ts=4 sw=4 et: */ |