veryl_metadata/
format.rs

1use serde::{Deserialize, Serialize};
2
3#[derive(Clone, Copy, Debug, Default, Serialize, Deserialize)]
4#[serde(rename_all = "snake_case")]
5pub enum NewlineStyle {
6    #[default]
7    Auto,
8    Native,
9    Unix,
10    Windows,
11}
12
13impl NewlineStyle {
14    pub fn newline_str(&self, input: &str) -> &'static str {
15        match self {
16            NewlineStyle::Auto => auto_detect_newline_style(input),
17            NewlineStyle::Native => native_newline_str(),
18            NewlineStyle::Unix => "\n",
19            NewlineStyle::Windows => "\r\n",
20        }
21    }
22}
23
24fn auto_detect_newline_style(input: &str) -> &'static str {
25    let first_lf = input.find('\n');
26    match first_lf {
27        Some(pos) if pos > 0 && input.as_bytes()[pos - 1] == b'\r' => "\r\n",
28        Some(_) => "\n",
29        None => native_newline_str(),
30    }
31}
32
33fn native_newline_str() -> &'static str {
34    if cfg!(target_os = "windows") {
35        "\r\n"
36    } else {
37        "\n"
38    }
39}
40
41#[derive(Clone, Debug, Serialize, Deserialize)]
42#[serde(deny_unknown_fields)]
43pub struct Format {
44    #[serde(default = "default_indent_width")]
45    pub indent_width: usize,
46
47    #[serde(default = "default_max_width")]
48    pub max_width: usize,
49
50    #[serde(default = "default_vertical_align")]
51    pub vertical_align: bool,
52
53    #[serde(default)]
54    pub newline_style: NewlineStyle,
55}
56
57impl Default for Format {
58    fn default() -> Self {
59        toml::from_str("").unwrap()
60    }
61}
62
63fn default_indent_width() -> usize {
64    4
65}
66
67fn default_max_width() -> usize {
68    120
69}
70
71fn default_vertical_align() -> bool {
72    true
73}
veryl_metadata/format.rs

veryl_metadata/
format.rs
