tinybufr 0.1.3

A decoder for BUFR meteorological data format
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

//! The BUFR edition 4 tables

pub mod local;
mod table_b;
mod table_c;
mod table_d;

pub use table_b::*;
pub use table_c::*;
pub use table_d::*;

use crate::{Descriptor, XY};
use hashbrown::HashMap;

/// Collection of BUFR tables (B, C, D).
pub struct Tables {
    pub table_b: HashMap<XY, &'static TableBEntry>,
    pub table_c: HashMap<(u8, Option<u8>), &'static TableCEntry>,
    pub table_d: HashMap<XY, &'static TableDEntry>,
}

impl Default for Tables {
    fn default() -> Self {
        Self {
            table_b: make_table_b(),
            table_c: make_table_c(),
            table_d: make_table_d(),
        }
    }
}

/// Entry in Table B (element descriptors).
#[derive(Debug)]
pub struct TableBEntry {
    pub xy: XY,
    pub class_name: &'static str,
    pub element_name: &'static str,
    pub unit: &'static str,
    pub scale: i8,
    pub reference_value: i32,
    pub bits: u16,
}

/// Entry in Table C (operator descriptors).
#[derive(Debug)]
pub struct TableCEntry {
    pub xy: (u8, Option<u8>),
    pub operator_name: &'static str,
    pub operation_definition: &'static str,
}

/// Entry in Table D (sequence descriptors).
#[derive(Debug)]
pub struct TableDEntry {
    pub xy: XY,
    pub category: &'static str,
    pub title: &'static str,
    pub sub_title: &'static str,
    pub elements: &'static [Descriptor],
}

/// Table B (f = 0).
fn make_table_b() -> HashMap<XY, &'static TableBEntry> {
    let mut map = HashMap::new();
    for entry in &table_b::TABLE_B {
        map.insert(entry.xy, entry);
    }
    map
}

/// Table C (f = 2).
fn make_table_c() -> HashMap<(u8, Option<u8>), &'static TableCEntry> {
    let mut map = HashMap::new();
    for entry in &table_c::TABLE_C {
        map.insert(entry.xy, entry);
    }
    map
}

/// Table D (f = 3).
fn make_table_d() -> HashMap<XY, &'static TableDEntry> {
    let mut map = HashMap::new();
    for entry in &table_d::TABLE_D {
        map.insert(entry.xy, entry);
    }
    map
}