unicode::canonical, unicode::decompose, unicode::decompose_default_reallocate, unicode::compose,

SamVarshavchik
           Author

       These functions implement the C++ interface for the UnicodeCanonicalDecompositionandComposition[1],
       See the description of the underlying unicode_canonical(3) C library API for more information. C++
       specific notes:

       •   The C++ decomposition reallocate callback receives a single vector of offset and size tuples instead
           of two separate arrays or vectors.  unicode::decompose_default_reallocate() is the C++ version of the
           default reallocate callback. It receives the receiving the same tuple vector parameter, too. The C++
           interface use std::u32strings to represent Unicode text strings, and
           unicode::decompose_default_reallocate() resizes it.

           Like the C callback, the C++ one gets called 0 or more times.

       •   unicode::compose() takes care of initializing, applying, and de-initialization the
           unicode_composition_t object, for decomposition. The callback receives a reference to the
           unicode_composition_t object, which the callback should not modify in any way.

       unicode::canonical, unicode::decompose, unicode::decompose_default_reallocate, unicode::compose,
       unicode::compose_default_callback - unicode canonical normalization and denormalization

        1. Unicode Canonical Decomposition and Composition
           https://www.unicode.org/reports/tr15/tr15-54.html

Courier Unicode Library                            05/18/2024                              UNICODE::CANONICAL(3)

courier-unicode(7), unicode_canonical(3).

#include<courier-unicode.h>constexprintdecompose_flag_qc=UNICODE_DECOMPOSE_FLAG_QC;constexprintdecompose_flag_compat=UNICODE_DECOMPOSE_FLAG_COMPAT;constexprintcompose_flag_removeunused=UNICODE_COMPOSE_FLAG_REMOVEUNUSED;constexprintcompose_flag_oneshot=UNICODE_COMPOSE_FLAG_ONESHOT;voiddecompose_default_reallocate(std::u32string&string,conststd::vector<std::tuple<size_t,size_t>>&list);voiddecompose(std::u32string&string,intflags=0,conststd::function<void(std::u32string&,conststd::vector<std::tuple<size_t,size_t>>)>&reallocate=decompose_default_reallocate);voidcompose_default_callback(unicode_composition_t&compositions);voidcompose(std::u32string&string,intflags=0,conststd::function<void(unicode_composition_t&)>&cb=compose_default_reallocate);