1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
|
use crate::doc_formatter::{DocumentFormatter, TextFormat};
use crate::text_annotations::{InlineAnnotation, Overlay, TextAnnotations};
impl TextFormat {
fn new_test(softwrap: bool) -> Self {
TextFormat {
soft_wrap: softwrap,
tab_width: 2,
max_wrap: 3,
max_indent_retain: 4,
wrap_indicator: ".".into(),
wrap_indicator_highlight: None,
// use a prime number to allow lining up too often with repeat
viewport_width: 17,
}
}
}
impl<'t> DocumentFormatter<'t> {
fn collect_to_str(&mut self) -> String {
use std::fmt::Write;
let mut res = String::new();
let viewport_width = self.text_fmt.viewport_width;
let mut line = 0;
for (grapheme, pos) in self {
if pos.row != line {
line += 1;
assert_eq!(pos.row, line);
write!(res, "\n{}", ".".repeat(pos.col)).unwrap();
assert!(
pos.col <= viewport_width as usize,
"softwrapped failed {}<={viewport_width}",
pos.col
);
}
write!(res, "{}", grapheme.grapheme).unwrap();
}
res
}
}
fn softwrap_text(text: &str) -> String {
DocumentFormatter::new_at_prev_checkpoint(
text.into(),
&TextFormat::new_test(true),
&TextAnnotations::default(),
0,
)
.0
.collect_to_str()
}
#[test]
fn basic_softwrap() {
assert_eq!(
softwrap_text(&"foo ".repeat(10)),
"foo foo foo foo \n.foo foo foo foo \n.foo foo "
);
assert_eq!(
softwrap_text(&"fooo ".repeat(10)),
"fooo fooo fooo \n.fooo fooo fooo \n.fooo fooo fooo \n.fooo "
);
// check that we don't wrap unnecessarily
assert_eq!(softwrap_text("\t\txxxx1xxxx2xx\n"), " xxxx1xxxx2xx \n ");
}
#[test]
fn softwrap_indentation() {
assert_eq!(
softwrap_text("\t\tfoo1 foo2 foo3 foo4 foo5 foo6\n"),
" foo1 foo2 \n.....foo3 foo4 \n.....foo5 foo6 \n "
);
assert_eq!(
softwrap_text("\t\t\tfoo1 foo2 foo3 foo4 foo5 foo6\n"),
" foo1 foo2 \n.foo3 foo4 foo5 \n.foo6 \n "
);
}
#[test]
fn long_word_softwrap() {
assert_eq!(
softwrap_text("\t\txxxx1xxxx2xxxx3xxxx4xxxx5xxxx6xxxx7xxxx8xxxx9xxx\n"),
" xxxx1xxxx2xxx\n.....x3xxxx4xxxx5\n.....xxxx6xxxx7xx\n.....xx8xxxx9xxx \n "
);
assert_eq!(
softwrap_text("xxxxxxxx1xxxx2xxx\n"),
"xxxxxxxx1xxxx2xxx\n. \n "
);
assert_eq!(
softwrap_text("\t\txxxx1xxxx 2xxxx3xxxx4xxxx5xxxx6xxxx7xxxx8xxxx9xxx\n"),
" xxxx1xxxx \n.....2xxxx3xxxx4x\n.....xxx5xxxx6xxx\n.....x7xxxx8xxxx9\n.....xxx \n "
);
assert_eq!(
softwrap_text("\t\txxxx1xxx 2xxxx3xxxx4xxxx5xxxx6xxxx7xxxx8xxxx9xxx\n"),
" xxxx1xxx 2xxx\n.....x3xxxx4xxxx5\n.....xxxx6xxxx7xx\n.....xx8xxxx9xxx \n "
);
}
fn overlay_text(text: &str, char_pos: usize, softwrap: bool, overlays: &[Overlay]) -> String {
DocumentFormatter::new_at_prev_checkpoint(
text.into(),
&TextFormat::new_test(softwrap),
TextAnnotations::default().add_overlay(overlays, None),
char_pos,
)
.0
.collect_to_str()
}
#[test]
fn overlay() {
assert_eq!(
overlay_text(
"foobar",
0,
false,
&[Overlay::new(0, "X"), Overlay::new(2, "\t")],
),
"Xo bar "
);
assert_eq!(
overlay_text(
&"foo ".repeat(10),
0,
true,
&[
Overlay::new(2, "\t"),
Overlay::new(5, "\t"),
Overlay::new(16, "X"),
]
),
"fo f o foo \n.foo Xoo foo foo \n.foo foo foo "
);
}
fn annotate_text(text: &str, softwrap: bool, annotations: &[InlineAnnotation]) -> String {
DocumentFormatter::new_at_prev_checkpoint(
text.into(),
&TextFormat::new_test(softwrap),
TextAnnotations::default().add_inline_annotations(annotations, None),
0,
)
.0
.collect_to_str()
}
#[test]
fn annotation() {
assert_eq!(
annotate_text("bar", false, &[InlineAnnotation::new(0, "foo")]),
"foobar "
);
assert_eq!(
annotate_text(
&"foo ".repeat(10),
true,
&[InlineAnnotation::new(0, "foo ")]
),
"foo foo foo foo \n.foo foo foo foo \n.foo foo foo "
);
}
#[test]
fn annotation_and_overlay() {
let annotations = [InlineAnnotation {
char_idx: 0,
text: "fooo".into(),
}];
let overlay = [Overlay {
char_idx: 0,
grapheme: "\t".into(),
}];
assert_eq!(
DocumentFormatter::new_at_prev_checkpoint(
"bbar".into(),
&TextFormat::new_test(false),
TextAnnotations::default()
.add_inline_annotations(annotations.as_slice(), None)
.add_overlay(overlay.as_slice(), None),
0,
)
.0
.collect_to_str(),
"fooo bar "
);
}
|
