unicode_fold.hpp File Reference

Unicode simple case-folding orbits for text-mode flags::icase. More...

#include "real/version.hpp"
#include <cstddef>
#include <cstdint>

Include dependency graph for unicode_fold.hpp:

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Classes
struct	real::detail::fold_entry
	A code point and the other members of its case-fold orbit (up to 3; orbits <= 4). More...

Namespaces
namespace	real
namespace	real::detail

Functions
constexpr std::size_t	real::detail::find_fold_index (std::uint32_t cp)
	Binary-searches unicode_fold_table for cp; returns its index, or unicode_fold_table_size if cp is not cased. An index (not a pointer into the table) keeps this usable in a constant expression on every compiler — g++ rejects a &table[i] != nullptr comparison inside a static_regex. Shared by the parser (is a literal cased?) and the compiler (its fold partners).

Variables
constexpr const char *	real::detail::unicode_fold_unidata_version {"16.0.0"}
	The Unicode data version these orbits were generated from (16.0.0).
constexpr fold_entry	real::detail::unicode_fold_table []
	Fold orbits, sorted by fold_entry::cp for binary search.
constexpr std::size_t	real::detail::unicode_fold_table_size {2940}
	Number of entries in unicode_fold_table.

Detailed Description

Unicode simple case-folding orbits for text-mode flags::icase.

GENERATED by tools/gen_unicode_fold.py – DO NOT EDIT BY HAND.

Each entry maps a code point to the other members of its case-fold orbit (the set that matches it under IGNORECASE). Built from, and exhaustively validated against, CPython's own case-insensitive matching, so REAL's text-mode icase is identical to re.IGNORECASE by construction. Unicode data version: 16.0.0 (asserted at compile time).

Definition in file unicode_fold.hpp.