feisty meow concerns codebase 2.140
math_bits.cpp
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1/*****************************************************************************\
2* *
3* Name : mathematical operations group *
4* Author : Chris Koeritz *
5* *
6*******************************************************************************
7* Copyright (c) 1996-$now By Author. This program is free software; you can *
8* redistribute it and/or modify it under the terms of the GNU General Public *
9* License as published by the Free Software Foundation; either version 2 of *
10* the License or (at your option) any later version. This is online at: *
11* http://www.fsf.org/copyleft/gpl.html *
12* Please send any updates to: fred@gruntose.com *
13\*****************************************************************************/
14
15#include "math_bits.h"
16
17#include <basis/astring.h>
18
19using namespace basis;
20
21namespace geometric {
22
23astring crop_numeric(const astring &input)
24{
25 astring to_return(input);
26 for (int i = 0; i < to_return.length(); i++)
27 if ( ( (to_return[i] >= '0') && (to_return[i] <= '9') )
28 || (to_return[i] == '.')
29 || (to_return[i] == '+') || (to_return[i] == '-')
30 || (to_return[i] == 'E') || (to_return[i] == 'e') ) {
31 to_return.zap(i, i); // remove non-useful character.
32 i--; // move backwards in loop.
33 } else break;
34 return to_return;
35}
36
37astring crop_non_numeric(const astring &input)
38{
39 astring to_return(input);
40 for (int i = 0; i < to_return.length(); i++)
41 if ( ! ((to_return[i] >= '0') && (to_return[i] <= '9'))
42 && (to_return[i] != '.')
43 && (to_return[i] != '+') && (to_return[i] != '-')
44 && (to_return[i] != 'E') && (to_return[i] != 'e') ) {
45 to_return.zap(i, i); // remove non-useful character.
46 i--; // move backwards in loop.
47 } else break;
48 return to_return;
49}
50
51}
52
basis::astring
Provides a dynamically resizable ASCII character string.
Definition astring.h:35
math_bits.h
Provides some fairly low-level math support.
basis
The guards collection helps in testing preconditions and reporting errors.
Definition array.h:30
geometric
Contains all of our objects for geometry and avoids name clashes.
Definition angle.h:25
geometric::crop_non_numeric
astring crop_non_numeric(const astring &input)
Eats the non-numeric characters from the front of "input".
Definition math_bits.cpp:37
geometric::crop_numeric
astring crop_numeric(const astring &input)
Eats the numeric characters from the front of "input".
Definition math_bits.cpp:23