Terminal Markdown previewer — GUI-like experience.
chore: split markdown toc
+46
-45
+3
-39
src/app.rs
+3
-39
src/app.rs
···
1
1
use crate::{
2
2
markdown::{
3
-
build_plain_lines, hash_file_contents, hash_str, parse_markdown_with_width, read_file_state,
3
+
build_plain_lines, hash_file_contents, hash_str, parse_markdown_with_width,
4
+
read_file_state,
5
+
toc::{should_hide_single_h1, should_promote_h2_when_no_h1, toc_display_level, TocEntry},
4
6
},
5
7
render::{build_status_bar, build_toc_line_with_index, toc_header_line},
6
8
theme::{
···
34
36
".next",
35
37
".cache",
36
38
];
37
-
38
-
#[derive(Clone)]
39
-
pub(crate) struct TocEntry {
40
-
pub(crate) level: u8,
41
-
pub(crate) title: String,
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-
pub(crate) line: usize,
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-
}
44
39
45
40
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
46
41
pub(crate) struct FileState {
···
1674
1669
true
1675
1670
}
1676
1671
}
1677
-
1678
-
pub(crate) fn should_hide_single_h1(toc: &[TocEntry]) -> bool {
1679
-
let h1_count = toc.iter().filter(|entry| entry.level == 1).count();
1680
-
let has_h2 = toc.iter().any(|entry| entry.level == 2);
1681
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h1_count == 1 && has_h2
1682
-
}
1683
-
1684
-
pub(crate) fn should_promote_h2_when_no_h1(toc: &[TocEntry]) -> bool {
1685
-
!toc.iter().any(|entry| entry.level == 1) && toc.iter().any(|entry| entry.level == 2)
1686
-
}
1687
-
1688
-
pub(crate) fn toc_display_level(level: u8, hide_single_h1: bool, promote_h2_root: bool) -> u8 {
1689
-
if hide_single_h1 || promote_h2_root {
1690
-
match level {
1691
-
2 => 1,
1692
-
3 => 2,
1693
-
_ => level,
1694
-
}
1695
-
} else {
1696
-
level
1697
-
}
1698
-
}
1699
-
1700
-
pub(crate) fn normalize_toc(mut toc: Vec<TocEntry>) -> Vec<TocEntry> {
1701
-
if should_hide_single_h1(&toc) || should_promote_h2_when_no_h1(&toc) {
1702
-
toc.retain(|entry| matches!(entry.level, 1..=3));
1703
-
} else {
1704
-
toc.retain(|entry| matches!(entry.level, 1..=2));
1705
-
}
1706
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toc
1707
-
}
+1
-1
src/main.rs
+1
-1
src/main.rs
+4
-4
src/markdown.rs
src/markdown/mod.rs
+4
-4
src/markdown.rs
src/markdown/mod.rs
···
1
-
use crate::{
2
-
app::{normalize_toc, TocEntry},
3
-
theme::{app_theme, MarkdownTheme},
4
-
};
1
+
pub(crate) mod toc;
2
+
3
+
use crate::theme::{app_theme, MarkdownTheme};
5
4
use pulldown_cmark::{
6
5
Alignment, CodeBlockKind, Event as MdEvent, HeadingLevel, Options, Parser, Tag, TagEnd,
7
6
};
···
17
16
use syntect::{
18
17
easy::HighlightLines, highlighting::Theme, parsing::SyntaxSet, util::LinesWithEndings,
19
18
};
19
+
use toc::{normalize_toc, TocEntry};
20
20
use unicode_width::{UnicodeWidthChar, UnicodeWidthStr};
21
21
22
22
const TAB_STOP: usize = 4;
+37
src/markdown/toc.rs
+37
src/markdown/toc.rs
···
1
+
#[derive(Clone)]
2
+
pub(crate) struct TocEntry {
3
+
pub(crate) level: u8,
4
+
pub(crate) title: String,
5
+
pub(crate) line: usize,
6
+
}
7
+
8
+
pub(crate) fn should_hide_single_h1(toc: &[TocEntry]) -> bool {
9
+
let h1_count = toc.iter().filter(|entry| entry.level == 1).count();
10
+
let has_h2 = toc.iter().any(|entry| entry.level == 2);
11
+
h1_count == 1 && has_h2
12
+
}
13
+
14
+
pub(crate) fn should_promote_h2_when_no_h1(toc: &[TocEntry]) -> bool {
15
+
!toc.iter().any(|entry| entry.level == 1) && toc.iter().any(|entry| entry.level == 2)
16
+
}
17
+
18
+
pub(crate) fn toc_display_level(level: u8, hide_single_h1: bool, promote_h2_root: bool) -> u8 {
19
+
if hide_single_h1 || promote_h2_root {
20
+
match level {
21
+
2 => 1,
22
+
3 => 2,
23
+
_ => level,
24
+
}
25
+
} else {
26
+
level
27
+
}
28
+
}
29
+
30
+
pub(crate) fn normalize_toc(mut toc: Vec<TocEntry>) -> Vec<TocEntry> {
31
+
if should_hide_single_h1(&toc) || should_promote_h2_when_no_h1(&toc) {
32
+
toc.retain(|entry| matches!(entry.level, 1..=3));
33
+
} else {
34
+
toc.retain(|entry| matches!(entry.level, 1..=2));
35
+
}
36
+
toc
37
+
}