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
|
use std::collections::HashMap;
use crate::khevent::KhEvent;
use crate::khline::{khlines_to_events, KhLine};
use self::cal::CalendarFilter;
use self::daterange::{SelectFilterFrom, SelectFilterTo};
use self::grep::GrepFilter;
use self::prop::PropFilter;
use self::range::RangeFilter;
mod cal;
pub mod daterange;
mod grep;
mod prop;
mod range;
#[cfg(test)]
mod test;
pub struct SelectFilters {
pub from: SelectFilterFrom,
pub to: SelectFilterTo,
pub range: Option<RangeFilter>,
others: Vec<Box<dyn SelectFilter>>,
}
pub trait SelectFilter {
fn add_term(&mut self, it: &mut dyn Iterator<Item = &&str>);
fn is_not_empty(&self) -> bool;
fn includes(&self, event: &KhEvent) -> bool;
}
impl SelectFilters {
pub fn parse_from_args_with_range(args: &[&str]) -> Result<Self, String> {
Self::parse_from_args_internal(args, true)
}
pub fn parse_from_args(args: &[&str]) -> Result<Self, String> {
Self::parse_from_args_internal(args, false)
}
fn parse_from_args_internal(args: &[&str], with_range: bool) -> Result<Self, String> {
let mut from: SelectFilterFrom = Default::default();
let mut to: SelectFilterTo = Default::default();
let mut range: Option<RangeFilter> = None;
let mut others: HashMap<&str, Box<dyn SelectFilter>> = HashMap::with_capacity(3);
others.insert("grep", Box::new(GrepFilter::default()));
others.insert("cal", Box::new(CalendarFilter::default()));
others.insert("prop", Box::new(PropFilter::default()));
let mut it = args.iter();
while let Some(arg) = it.next() {
match *arg {
"from" => {
let term = it.next().unwrap();
from = from.combine_with(&term.parse()?);
}
"to" => {
let term = it.next().unwrap();
to = to.combine_with(&term.parse()?);
}
"in" | "on" => {
let term = it.next().unwrap();
from = from.combine_with(&term.parse()?);
to = to.combine_with(&term.parse()?);
}
term => {
if let Some(filter) = others.get_mut(term) {
filter.add_term(&mut it);
} else if let Ok(parsed_range) = term.parse::<RangeFilter>() {
if !with_range {
return Err("Range selector not allowed here!".to_string());
}
if range.is_some() {
return Err("Duplicate range selector!".to_string());
}
range = Some(parsed_range);
} else {
return Err("select [from|to|in|on|grep|cal parameter]+".to_string());
}
}
}
}
let others = others
.drain()
.map(|x| x.1)
.filter(|filter| filter.is_not_empty())
.collect();
Ok(SelectFilters {
from,
to,
range,
others,
})
}
fn line_is_from(&self, event: &KhEvent) -> bool {
let starts_after = self.from.includes_date(event.get_start().unwrap().into());
let ends_after = self.from.includes_date(event.get_end().unwrap().into());
starts_after || ends_after
}
fn line_is_to(&self, event: &KhEvent) -> bool {
self.to.includes_date(event.get_start().unwrap().into())
}
fn filter_index(&self, index: usize) -> bool {
if let Some(range) = self.range.as_ref() {
range.includes(index)
} else {
true
}
}
fn others(&self, event: &KhEvent) -> bool {
self.others.is_empty() || self.others.iter().any(|filter| filter.includes(event))
}
pub fn is_selected(&self, event: &KhEvent) -> bool {
self.line_is_from(event) && self.line_is_to(event) && self.others(event)
}
pub fn is_selected_index(&self, index: usize, event: &KhEvent) -> bool {
self.filter_index(index)
&& self.line_is_from(event)
&& self.line_is_to(event)
&& self.others(event)
}
pub fn filter_khlines(
self,
khlines: impl Iterator<Item = KhLine>,
) -> impl Iterator<Item = KhEvent> {
let events = khlines_to_events(khlines);
events
.enumerate()
.filter(move |(index, event)| self.is_selected_index(*index, event))
.map(|(_, event)| event)
}
}
|
