logos.lang.unicode
Module lang · package logos-lang
Types
enumGeneralCategory
enum GeneralCategorySubset of Unicode general-category codes.
Variants mirror UCD GC abbreviations (as in Rust’s core::unicode::category::Category);
only the categories our scaffolded tables populate are exposed — the rest map to Other
(Cn = unassigned).
Variants
CcLlLoLuNdOtherPoScSmSoZsFunctions
fnunicode_general_category
fn unicode_general_category(cp: u32) -> GeneralCategoryReturns the Unicode general category of codepoint cp.
Accurate only for ASCII + Latin-1 Supplement (U+0000–U+00FF), with Pd/Ps/Pe lumped into
Po; every codepoint above U+00FF maps to GeneralCategory::Other.
fnunicode_is_alphabetic
fn unicode_is_alphabetic(cp: u32) -> boolReturns true if cp is a letter (Lu, Ll, or Lo).
Category coverage stops at U+00FF; letters above that return false.
fnunicode_is_control
fn unicode_is_control(cp: u32) -> boolReturns true if cp is a control code (Cc): U+0000–U+001F or U+007F–U+009F.
Exact for all of Unicode — Cc exists only in those ranges.
fnunicode_is_lowercase
fn unicode_is_lowercase(cp: u32) -> boolReturns true if cp is a lowercase letter (Ll).
Category coverage stops at U+00FF; lowercase letters above that return false.
fnunicode_is_numeric
fn unicode_is_numeric(cp: u32) -> boolReturns true if cp is a decimal digit (Nd).
With the current table only ASCII 0–9 qualify.
fnunicode_is_uppercase
fn unicode_is_uppercase(cp: u32) -> boolReturns true if cp is an uppercase letter (Lu).
Category coverage stops at U+00FF; uppercase letters above that return false.
fnunicode_is_whitespace
fn unicode_is_whitespace(cp: u32) -> boolReturns true if cp has the Unicode White_Space property.
Uses an explicit full list (not limited to U+00FF), but omits U+0085 (NEL), unlike UCD
and Rust’s char::is_whitespace.