harness_read/
format.rs

1use crate::constants::max_bytes_label;
2
3pub struct FormatTextArgs<'a> {
4    pub path: &'a str,
5    pub offset: usize,
6    pub lines: &'a [String],
7    pub total_lines: usize,
8    pub more: bool,
9    pub byte_cap: bool,
10}
11
12pub fn format_text(args: FormatTextArgs<'_>) -> String {
13    let header = format!(
14        "<path>{}</path>\n<type>file</type>\n<content>",
15        args.path
16    );
17
18    if args.lines.is_empty() && args.total_lines == 0 {
19        return format!("{}\n(File exists but is empty)\n</content>", header);
20    }
21
22    let body: String = args
23        .lines
24        .iter()
25        .enumerate()
26        .map(|(i, line)| format!("{}: {}", args.offset + i, line))
27        .collect::<Vec<_>>()
28        .join("\n");
29    let last = args.offset + args.lines.len() - 1;
30    let next = last + 1;
31
32    let hint = if args.byte_cap {
33        let pct = if args.total_lines > 0 {
34            (last as f64 / args.total_lines as f64 * 100.0).round() as i64
35        } else {
36            0
37        };
38        let remaining = args.total_lines.saturating_sub(last);
39        format!(
40            "(Output capped at {}. Showing lines {}-{} of {} · {}% covered · {} lines remaining. Next offset: {}.)",
41            max_bytes_label(),
42            args.offset,
43            last,
44            args.total_lines,
45            pct,
46            remaining,
47            next
48        )
49    } else if args.more {
50        let pct = (last as f64 / args.total_lines as f64 * 100.0).round() as i64;
51        let remaining = args.total_lines.saturating_sub(last);
52        format!(
53            "(Showing lines {}-{} of {} · {}% covered · {} lines remaining. Next offset: {}.)",
54            args.offset, last, args.total_lines, pct, remaining, next
55        )
56    } else {
57        format!("(End of file · {} lines total)", args.total_lines)
58    };
59
60    format!("{}\n{}\n\n{}\n</content>", header, body, hint)
61}
62
63pub struct FormatDirArgs<'a> {
64    pub path: &'a str,
65    pub entries: &'a [String],
66    pub offset: usize,
67    pub total_entries: usize,
68    pub more: bool,
69}
70
71pub fn format_directory(args: FormatDirArgs<'_>) -> String {
72    let header = format!(
73        "<path>{}</path>\n<type>directory</type>\n<entries>",
74        args.path
75    );
76    let body = args.entries.join("\n");
77    let last = args.offset + args.entries.len() - 1;
78    let next = last + 1;
79    let remaining = args.total_entries.saturating_sub(last);
80    let hint = if args.more {
81        format!(
82            "(Showing {} of {} entries · {} remaining. Next offset: {}.)",
83            args.entries.len(),
84            args.total_entries,
85            remaining,
86            next
87        )
88    } else {
89        format!("({} entries)", args.total_entries)
90    };
91    format!("{}\n{}\n\n{}\n</entries>", header, body, hint)
92}
93
94pub fn format_attachment(kind: &str) -> String {
95    format!("{} read successfully", kind)
96}
harness_read/format.rs

harness_read/
format.rs
