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
#![feature(extended_key_value_attributes)]
#![doc=include_str!("../readme.md")]
use std::collections::{HashMap,HashSet};
pub struct ArgMap {
pub boolean: HashSet<String>,
}
pub type Map = HashMap<String,Vec<String>>;
pub type List = Vec<String>;
impl ArgMap {
pub fn new() -> Self {
Self {
boolean: HashSet::new(),
}
}
pub fn boolean<T>(mut self, key: T) -> Self where T: ToString {
self.boolean.insert(key.to_string());
self
}
pub fn booleans<T>(mut self, keys: &[T]) -> Self where T: ToString {
for key in keys.iter() {
self.boolean.insert(key.to_string());
}
self
}
pub fn parse<T>(&mut self, input: impl Iterator<Item=T>) -> (List,Map) where T: ToString {
let mut args: List = vec![];
let mut argv: Map = HashMap::new();
let mut key: Option<String> = None;
let mut dashdash = false;
for x in input {
let s = x.to_string();
if dashdash {
args.push(s);
continue;
}
if s == "--" {
dashdash = true;
} else if s == "-" {
args.push(s);
} else if s.starts_with("--") {
if let Some(k) = &key {
argv.insert(k.clone(), vec![]);
key = None;
}
let k = s[2..].to_string();
if let Some(i) = k.find("=") {
set(&mut argv, &k[0..i].to_string(), &k[i+1..].to_string());
} else if self.boolean.contains(&k) {
set_bool(&mut argv, &k)
} else {
key = Some(k);
}
} else if s.starts_with("-") {
if let Some(k) = &key {
if is_num(&s[1..2]) {
set(&mut argv, &k, &s.to_string());
key = None;
continue;
}
set_bool(&mut argv, &k);
argv.insert(k.clone(), vec![]);
key = None;
}
if let Some(i) = s.find("=") {
let sk = s[1..i].to_string();
let sv = s[i+1..].to_string();
set(&mut argv, &sk, &sv);
} else {
let mut jump = false;
for i in 1..s.len()-1 {
let k = s[i..i+1].to_string();
if let Some(sk) = &key {
if is_num(&k) || short_break(&k) {
set(&mut argv, sk, &s[i..].to_string());
key = None;
jump = true;
break;
} else {
set_bool(&mut argv, &sk);
}
key = None;
}
if self.boolean.contains(&k) {
set_bool(&mut argv, &k);
} else {
key = Some(k);
}
}
if jump { continue }
let k = s[s.len()-1..].to_string();
if let Some(sk) = &key {
if self.boolean.contains(&k) {
set_bool(&mut argv, sk);
set_bool(&mut argv, &k);
} else if is_num(&k) || short_break(&k) {
set(&mut argv, sk, &k);
key = None;
} else {
set_bool(&mut argv, sk);
key = Some(k);
}
} else if self.boolean.contains(&k) {
set_bool(&mut argv, &k);
} else {
key = Some(k);
}
}
} else if let Some(k) = key {
set(&mut argv, &k, &s);
key = None;
} else {
args.push(s);
}
}
if let Some(k) = key {
set_bool(&mut argv, &k);
}
(args,argv)
}
}
pub fn new() -> ArgMap {
ArgMap::new()
}
pub fn parse<T>(input: impl Iterator<Item=T>) -> (List,Map) where T: ToString {
ArgMap::new().parse(input)
}
fn is_num(s: &str) -> bool {
s.chars().nth(0).and_then(|c| Some('0' <= c && c <= '9')).unwrap_or(false)
}
fn short_break(s: &String) -> bool {
s.chars().next()
.and_then(|c| Some(!c.is_alphabetic()))
.unwrap_or(false)
}
fn set(argv: &mut Map, key: &String, value: &String) {
if let Some(values) = argv.get_mut(key) {
values.push(value.clone());
} else {
argv.insert(key.clone(), vec![value.clone()]);
}
}
fn set_bool(argv: &mut Map, key: &String) {
if !argv.contains_key(key) {
argv.insert(key.clone(), vec![]);
}
}