styx_format/
options.rs

1//! Formatting options for Styx serialization.
2
3/// Restrict formatting to a kind.
4#[derive(Debug, Clone, Eq, PartialEq)]
5pub enum ForceStyle {
6    None,
7
8    /// Force all objects to use comma separators
9    Inline,
10
11    /// Force all objects to use newline separators
12    Multiline,
13}
14
15/// Options for Styx serialization.
16#[derive(Debug, Clone)]
17pub struct FormatOptions {
18    /// Indentation string (default: "    " - 4 spaces)
19    pub indent: &'static str,
20
21    /// Max line width before wrapping (default: 80)
22    pub max_width: usize,
23
24    /// Minimum available width to even consider inline (default: 30)
25    /// If depth eats into max_width below this, force multi-line
26    pub min_inline_width: usize,
27
28    /// Inline objects with ≤ N entries (default: 4)
29    pub inline_object_threshold: usize,
30
31    /// Inline sequences with ≤ N items (default: 8)
32    pub inline_sequence_threshold: usize,
33
34    /// Use heredocs for strings with > N lines (default: 2)
35    pub heredoc_line_threshold: usize,
36
37    pub force_style: ForceStyle,
38}
39
40impl Default for FormatOptions {
41    fn default() -> Self {
42        Self {
43            indent: "    ",
44            max_width: 80,
45            min_inline_width: 30,
46            inline_object_threshold: 4,
47            inline_sequence_threshold: 8,
48            heredoc_line_threshold: 2,
49            force_style: ForceStyle::None,
50        }
51    }
52}
53
54impl FormatOptions {
55    /// Create new default options.
56    pub fn new() -> Self {
57        Self::default()
58    }
59
60    /// Force all output to be multi-line (newline separators).
61    pub fn multiline(mut self) -> Self {
62        self.force_style = ForceStyle::Multiline;
63        self
64    }
65
66    /// Force all output to be inline (comma separators, single line).
67    pub fn inline(mut self) -> Self {
68        self.force_style = ForceStyle::Inline;
69        self
70    }
71
72    /// Set a custom indentation string.
73    pub fn indent(mut self, indent: &'static str) -> Self {
74        self.indent = indent;
75        self
76    }
77
78    /// Set max line width.
79    pub fn max_width(mut self, width: usize) -> Self {
80        self.max_width = width;
81        self
82    }
83}
styx_format/options.rs

styx_format/
options.rs
