num-format 0.1.2

A Rust crate for producing string-representations of numbers, formatted according to international standards
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115

use core::fmt;

use crate::constants::{MAX_INF_LEN, MAX_MIN_LEN, MAX_NAN_LEN};
use crate::errors::Error;

/// Simple wrapper type for a `&str` to make sure its length is less than the maximum for
/// an infinity symbol (64 bytes).
#[derive(Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct InfinityStr<'a>(&'a str);

impl<'a> InfinityStr<'a> {
    /// Constructs an `InfinityStr`, ensuring that the length is less than the maximum for
    /// an infinity symbol (64 bytes).
    ///
    /// # Errors
    ///
    /// Returns an `Error` if the provided `&str`'s length is more than 64 bytes.
    pub fn new(s: &'a str) -> Result<InfinityStr<'a>, Error> {
        if s.len() > MAX_INF_LEN {
            return Err(Error::capacity(MAX_INF_LEN));
        }
        Ok(InfinityStr(s))
    }

    /// Allows recovery of the initial / wrapped `&str`.
    pub fn into_str(self) -> &'a str {
        self.0
    }
}

impl<'a> fmt::Debug for InfinityStr<'a> {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "{:?}", self.0)
    }
}

impl<'a> fmt::Display for InfinityStr<'a> {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "{}", self.0)
    }
}

/// Simple wrapper type for a `&str` to make sure its length is less than the maximum for
/// a minus sign (7 bytes).
#[derive(Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct MinusSignStr<'a>(&'a str);

impl<'a> MinusSignStr<'a> {
    /// Constructs a `MinusSignStr`, ensuring that the length is less than the maximum for
    /// a minus sign (7 bytes).
    ///
    /// # Errors
    ///
    /// Returns an `Error` if the provided `&str`'s length is more than 7 bytes.
    pub fn new(s: &'a str) -> Result<MinusSignStr<'a>, Error> {
        if s.len() > MAX_MIN_LEN {
            return Err(Error::capacity(MAX_MIN_LEN));
        }
        Ok(MinusSignStr(s))
    }

    /// Allows recovery of the initial / wrapped `&str`.
    pub fn into_str(self) -> &'a str {
        self.0
    }
}

impl<'a> fmt::Debug for MinusSignStr<'a> {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "{:?}", self.0)
    }
}

impl<'a> fmt::Display for MinusSignStr<'a> {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "{}", self.0)
    }
}

/// Simple wrapper type for a `&str` to make sure its length is less than the maximum for
/// a nan symbol (64 bytes).
#[derive(Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct NanStr<'a>(&'a str);

impl<'a> NanStr<'a> {
    /// Constructs an `NanStr`, ensuring that the length is less than the maximum for
    /// a nan symbol (64 bytes).
    ///
    /// # Errors
    ///
    /// Returns an `Error` if the provided `&str`'s length is more than 64 bytes.
    pub fn new(s: &'a str) -> Result<NanStr<'a>, Error> {
        if s.len() > MAX_NAN_LEN {
            return Err(Error::capacity(MAX_NAN_LEN));
        }
        Ok(NanStr(s))
    }

    /// Allows recovery of the initial / wrapped `&str`.
    pub fn into_str(self) -> &'a str {
        self.0
    }
}

impl<'a> fmt::Debug for NanStr<'a> {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "{:?}", self.0)
    }
}

impl<'a> fmt::Display for NanStr<'a> {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "{}", self.0)
    }
}