File: cm_utf8.h

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/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
   file LICENSE.rst or https://cmake.org/licensing for details.  */
#pragma once

#ifdef __cplusplus
extern "C" {
#endif

extern unsigned char const cm_utf8_ones[256];

/** Decode one UTF-8 character from the input byte range.  On success,
    stores the unicode character number in *pc and returns the first
    position not extracted.  On failure, returns 0.  */
char const* cm_utf8_decode_character(char const* first, char const* last,
                                     unsigned int* pc);

/** Returns whether a C string is a sequence of valid UTF-8 encoded Unicode
    codepoints.  Returns non-zero on success. */
int cm_utf8_is_valid(char const* s);

#ifdef __cplusplus
} /* extern "C" */
#endif