Struct Locale 

pub struct Locale {
    pub code: String,
    pub date_order: DateOrder,
    pub primary_date_sep: char,
    pub lcid: u16,
    pub two_digit_year_pivot: u32,
    pub default_year: Option<i32>,
}

A spreadsheet regional locale configuring date and number parsing rules.

Fields

code: String

Language / country tag (e.g. "en-US", "en-GB", "de-DE", "fr-FR").

date_order: DateOrder

Primary date field ordering.

primary_date_sep: char

Primary date separator ('/', '.' , or '-').

lcid: u16

Windows LCID (e.g., 0x0409 for en-US, 0x0809 for en-GB, 0x0407 for de-DE).

two_digit_year_pivot: u32

2-digit year pivot threshold (default 29 -> 00..29 is 20xx, 30..99 is 19xx).

default_year: Option<i32>

Default calendar year for 2-part dates (if None, defaults to 2026).

Implementations

impl Locale

pub fn en_us() -> Self

English (United States) locale: MDY, separator /, LCID 0x0409.

pub fn en_gb() -> Self

English (United Kingdom) locale: DMY, separator /, LCID 0x0809.

pub fn de_de() -> Self

German (Germany) locale: DMY, separator ., LCID 0x0407.

pub fn fr_fr() -> Self

French (France) locale: DMY, separator /, LCID 0x040C.

pub fn es_es() -> Self

Spanish (Spain) locale: DMY, separator /, LCID 0x0C0A.

pub fn it_it() -> Self

Italian (Italy) locale: DMY, separator /, LCID 0x0410.

pub fn pt_br() -> Self

Portuguese (Brazil) locale: DMY, separator /, LCID 0x0416.

pub fn nl_nl() -> Self

Dutch (Netherlands) locale: DMY, separator -, LCID 0x0413.

pub fn ru_ru() -> Self

Russian (Russia) locale: DMY, separator ., LCID 0x0419.

pub fn zh_cn() -> Self

Chinese (Simplified, China) locale: YMD, separator /, LCID 0x0804.

pub fn ja_jp() -> Self

Japanese (Japan) locale: YMD, separator /, LCID 0x0411.

pub fn from_code(code: &str) -> Option<Self>

Look up or construct a locale from a BCP 47 or POSIX language tag.

Recognizes tags like "en-US", "en_US", "en-GB", "de", "de-DE", "fr", "es", "it", "pt", "nl", "ru", "zh", "ja", etc.

pub fn default_year(&self) -> i32

The default year for 2-part dates (e.g. 6/22 or 22-Jun).

pub fn expand_two_digit_year(&self, year: i32) -> i32

Convert a 2-digit year to a 4-digit year using this locale’s pivot.

pub fn match_month_word(&self, word: &str) -> Option<(u32, bool)>

Attempts to match a month name/word token against this locale’s month dictionaries (or English as fallback). Returns (month_1_based, is_full_name).

Trait Implementations

impl Clone for Locale

fn clone(&self) -> Locale

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Locale

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Locale

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Locale

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Locale

impl PartialEq for Locale

fn eq(&self, other: &Locale) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for Locale

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Locale