strfmt/
types.rs

1use std::error;
2use std::fmt;
3use std::result;
4use std::string::String;
5
6#[derive(Debug, Clone, PartialEq)]
7pub enum Alignment {
8    Unspecified, // default Left for strings, Right for numbers
9    Left,
10    Center,
11    Right,
12    Equal,
13}
14
15#[derive(Debug, Clone, PartialEq)]
16pub enum Sign {
17    Unspecified,
18    Plus,
19    Minus,
20    Space,
21}
22
23impl Sign {
24    pub fn is_unspecified(&self) -> bool {
25        match *self {
26            Sign::Unspecified => false,
27            _ => true,
28        }
29    }
30}
31
32pub type Result<T> = result::Result<T, FmtError>;
33
34/// LOC-error
35#[derive(Debug, PartialEq)]
36pub enum FmtError {
37    Invalid(String),   // format string is structued incorrectly
38    KeyError(String),  // key error in formatting string
39    TypeError(String), // invalid type used
40}
41
42impl fmt::Display for FmtError {
43    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
44        match *self {
45            FmtError::Invalid(ref s) => write!(f, "Invalid({})", s),
46            FmtError::KeyError(ref s) => write!(f, "KeyError({})", s),
47            FmtError::TypeError(ref s) => write!(f, "TypeError({})", s),
48        }
49    }
50}
51
52impl error::Error for FmtError {
53    fn description(&self) -> &str {
54        match *self {
55            FmtError::Invalid(_) => "invalid format string",
56            FmtError::KeyError(_) => "invalid key",
57            FmtError::TypeError(_) => "error during type resolution",
58        }
59    }
60
61    fn cause(&self) -> Option<&dyn error::Error> {
62        None
63    }
64}
65
66// enum Type {
67//     // integer types
68//     Bin,
69//     Char,
70//     Decimal,
71//     Octal,
72//     Hex,
73//     HexUpper,
74
75//     // both
76//     Number,
77
78//     // Floating point types
79//     Exponent,
80//     ExponentUpper,
81//     Fixed,
82//     General,
83//     GeneralUppercase,
84//     Percengage,
85
86//     // other types
87//     None,
88//     String,
89//     Debug,
90// }
strfmt/types.rs

strfmt/
types.rs
