icu_locale_core/parser/
errors.rs

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1// This file is part of ICU4X. For terms of use, please see the file
2// called LICENSE at the top level of the ICU4X source tree
3// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).
4
5use displaydoc::Display;
6
7/// List of parser errors that can be generated
8/// while parsing [`LanguageIdentifier`](crate::LanguageIdentifier), [`Locale`](crate::Locale),
9/// [`subtags`](crate::subtags) or [`extensions`](crate::extensions).
10#[derive(Display, Debug, PartialEq, Copy, Clone)]
11#[non_exhaustive]
12pub enum ParseError {
13    /// Invalid language subtag.
14    ///
15    /// # Examples
16    ///
17    /// ```
18    /// use icu::locale::subtags::Language;
19    /// use icu::locale::ParseError;
20    ///
21    /// assert_eq!("x2".parse::<Language>(), Err(ParseError::InvalidLanguage));
22    /// ```
23    #[displaydoc("The given language subtag is invalid")]
24    InvalidLanguage,
25
26    /// Invalid script, region or variant subtag.
27    ///
28    /// # Examples
29    ///
30    /// ```
31    /// use icu::locale::subtags::Region;
32    /// use icu::locale::ParseError;
33    ///
34    /// assert_eq!("#@2X".parse::<Region>(), Err(ParseError::InvalidSubtag));
35    /// ```
36    #[displaydoc("Invalid subtag")]
37    InvalidSubtag,
38
39    /// Invalid extension subtag.
40    ///
41    /// # Examples
42    ///
43    /// ```
44    /// use icu::locale::extensions::unicode::Key;
45    /// use icu::locale::ParseError;
46    ///
47    /// assert_eq!("#@2X".parse::<Key>(), Err(ParseError::InvalidExtension));
48    /// ```
49    #[displaydoc("Invalid extension")]
50    InvalidExtension,
51
52    /// Duplicated extension.
53    ///
54    /// # Examples
55    ///
56    /// ```
57    /// use icu::locale::Locale;
58    /// use icu::locale::ParseError;
59    ///
60    /// assert_eq!(
61    ///     "und-u-hc-h12-u-ca-calendar".parse::<Locale>(),
62    ///     Err(ParseError::DuplicatedExtension)
63    /// );
64    /// ```
65    #[displaydoc("Duplicated extension")]
66    DuplicatedExtension,
67}
68
69impl core::error::Error for ParseError {}
icu_locale_core/parser/errors.rs

icu_locale_core/parser/
errors.rs
