utf8_rune/
internal.rs

1use std::iter::Iterator;
2
3pub const DEFAULT_INDENT: usize = 4;
4use crate::Error;
5
6#[cfg(feature = "debug")]
7pub fn format_bytes(bytes: &[u8], indent: Option<usize>) -> String {
8    let indent = indent.unwrap_or_else(|| DEFAULT_INDENT);
9    let padding = " ".repeat(indent);
10    fn pad(byte: u8, indent: usize) -> String {
11        let byte = byte.to_string();
12        let pad = " ".repeat(indent - (1 - byte.len()));
13        format!("{byte}{pad}")
14    }
15    format!(
16        "[\n{}{}\n]",
17        padding,
18        bytes
19            .iter()
20            .map(Clone::clone)
21            .map(|c| format!(
22                "{}{}, // {:#?}",
23                " ".repeat(indent + DEFAULT_INDENT),
24                pad(c, indent),
25                char::from(c)
26            ))
27            .collect::<Vec<String>>()
28            .join("\n"),
29    )
30}
31#[cfg(not(feature = "debug"))]
32pub fn format_bytes(bytes: &[u8], indent: Option<usize>) -> String {
33    let pad = " ".repeat(unwrap_indent(indent));
34    format!(
35        "{pad}[{}]",
36        bytes
37            .into_iter()
38            .map(|c| c.to_string())
39            .collect::<Vec<String>>()
40            .join(", ")
41    )
42}
43
44#[cfg(feature = "debug")]
45pub fn display_error<'e>(error: Error<'e>, ptr: *const u8, length: usize) {
46    let filename = file!();
47    let lineno = line!();
48    eprintln!("{filename}:{lineno} {error}");
49}
50#[cfg(not(feature = "debug"))]
51pub fn display_error<'e>(_error: Error<'e>, _ptr: *const u8, _length: usize) {}
52
53
54pub fn unwrap_indent(indent: Option<usize>) -> usize {
55    indent.unwrap_or_else(|| DEFAULT_INDENT)
56}
utf8_rune/internal.rs

utf8_rune/
internal.rs
