kalosm_sample/structured_parser/
sentence.rs

1use std::ops::{Deref, DerefMut};
2
3use crate::{CreateParserState, Parse, SendCreateParserState};
4use crate::{ParseStatus, Parser, StringParser};
5
6#[derive(Clone, Debug)]
7/// A single word.
8pub struct Sentence<const MIN_LENGTH: usize = 1, const MAX_LENGTH: usize = 200>(pub String);
9
10impl<const MIN_LENGTH: usize, const MAX_LENGTH: usize> Sentence<MIN_LENGTH, MAX_LENGTH> {
11    /// Create a new word.
12    pub fn new(word: String) -> Self {
13        assert!(word.len() >= MIN_LENGTH);
14        assert!(word.len() <= MAX_LENGTH);
15        Self(word)
16    }
17}
18
19impl<const MIN_LENGTH: usize, const MAX_LENGTH: usize> From<Sentence<MIN_LENGTH, MAX_LENGTH>>
20    for String
21{
22    fn from(word: Sentence<MIN_LENGTH, MAX_LENGTH>) -> Self {
23        word.0
24    }
25}
26
27impl<const MIN_LENGTH: usize, const MAX_LENGTH: usize> From<String>
28    for Sentence<MIN_LENGTH, MAX_LENGTH>
29{
30    fn from(word: String) -> Self {
31        Self(word)
32    }
33}
34
35impl<const MIN_LENGTH: usize, const MAX_LENGTH: usize> Deref for Sentence<MIN_LENGTH, MAX_LENGTH> {
36    type Target = String;
37
38    fn deref(&self) -> &Self::Target {
39        &self.0
40    }
41}
42
43impl<const MIN_LENGTH: usize, const MAX_LENGTH: usize> DerefMut
44    for Sentence<MIN_LENGTH, MAX_LENGTH>
45{
46    fn deref_mut(&mut self) -> &mut Self::Target {
47        &mut self.0
48    }
49}
50
51/// A parser for a word.
52pub struct SentenceParser<const MIN_LENGTH: usize = 1, const MAX_LENGTH: usize = 200> {
53    parser: StringParser<fn(char) -> bool>,
54}
55
56impl SentenceParser {
57    /// Create a new default sentence parser
58    pub fn new() -> Self {
59        Self::default()
60    }
61}
62
63impl<const MIN_LENGTH: usize, const MAX_LENGTH: usize> Default
64    for SentenceParser<MIN_LENGTH, MAX_LENGTH>
65{
66    fn default() -> Self {
67        Self {
68            parser: StringParser::new(MIN_LENGTH..=MAX_LENGTH).with_allowed_characters(|c| {
69                c.is_ascii_alphanumeric() || matches!(c, ' ' | '-' | ';' | ',')
70            }),
71        }
72    }
73}
74
75impl<const MIN_LENGTH: usize, const MAX_LENGTH: usize> CreateParserState
76    for SentenceParser<MIN_LENGTH, MAX_LENGTH>
77{
78    fn create_parser_state(&self) -> <Self as Parser>::PartialState {
79        self.parser.create_parser_state()
80    }
81}
82
83impl<const MIN_LENGTH: usize, const MAX_LENGTH: usize> Parser
84    for SentenceParser<MIN_LENGTH, MAX_LENGTH>
85{
86    type Output = Sentence<MIN_LENGTH, MAX_LENGTH>;
87    type PartialState = <StringParser<fn(char) -> bool> as Parser>::PartialState;
88
89    fn parse<'a>(
90        &self,
91        state: &Self::PartialState,
92        input: &'a [u8],
93    ) -> crate::ParseResult<ParseStatus<'a, Self::PartialState, Self::Output>> {
94        self.parser
95            .parse(state, input)
96            .map(|result| result.map(Into::into))
97    }
98}
99
100impl<const MIN_LENGTH: usize, const MAX_LENGTH: usize> Parse for Sentence<MIN_LENGTH, MAX_LENGTH> {
101    fn new_parser() -> impl SendCreateParserState<Output = Self> {
102        SentenceParser::default()
103    }
104}
kalosm_sample/structured_parser/sentence.rs

kalosm_sample/structured_parser/
sentence.rs
