csv_nose/
sample.rs

1/// Sample size configuration for sniffing.
2#[derive(Debug, Clone, Copy, PartialEq, Eq)]
3pub enum SampleSize {
4    /// Sample a specific number of records.
5    Records(usize),
6    /// Sample a specific number of bytes.
7    Bytes(usize),
8    /// Read the entire file.
9    All,
10}
11
12impl Default for SampleSize {
13    fn default() -> Self {
14        // Default to 100 records which is reasonable for most files
15        SampleSize::Records(100)
16    }
17}
18
19impl SampleSize {
20    /// Returns the number of records to sample, or None for All.
21    pub fn records(&self) -> Option<usize> {
22        match self {
23            SampleSize::Records(n) => Some(*n),
24            _ => None,
25        }
26    }
27
28    /// Returns the number of bytes to sample, or None for other modes.
29    pub fn bytes(&self) -> Option<usize> {
30        match self {
31            SampleSize::Bytes(n) => Some(*n),
32            _ => None,
33        }
34    }
35}
36
37/// Date format preference for ambiguous date parsing.
38#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
39pub enum DatePreference {
40    /// Day-Month-Year format (e.g., 31/12/2023).
41    DmyFormat,
42    /// Month-Day-Year format (e.g., 12/31/2023).
43    #[default]
44    MdyFormat,
45}
46
47impl DatePreference {
48    /// Returns true if day comes before month in ambiguous dates.
49    pub fn is_dmy(&self) -> bool {
50        matches!(self, DatePreference::DmyFormat)
51    }
52}
csv_nose/sample.rs

csv_nose/
sample.rs
