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GRAPHEME_IS_UPPERCASE(3) - Library Functions Manual

NAME

grapheme_is_uppercase - check if codepoint array is uppercase

SYNOPSIS

#include <grapheme.h>

size_t
grapheme_is_uppercase(const uint_least32_t *str, size_t len, size_t *caselen);

DESCRIPTION

The grapheme_is_uppercase() function checks if the codepoint array str is uppercase and writes the length of the matching uppercase-sequence to the integer pointed to by caselen, unless caselen is set to NULL.

If len is set to SIZE_MAX (stdint.h is already included by grapheme.h) the codepoint array src is interpreted to be NUL-terminated and processing stops when a NUL-byte is encountered.

For UTF-8-encoded input data grapheme_is_uppercase_utf8(3) can be used instead.

RETURN VALUES

The grapheme_is_uppercase() function returns true if the codepoint array str is uppercase, otherwise false.

SEE ALSO

grapheme_is_uppercase_utf8(3), libgrapheme(7)

STANDARDS

grapheme_is_uppercase() is compliant with the Unicode 15.0.0 specification.

AUTHORS

Laslo Hunhold (dev@frign.de)

suckless.org - 2022-10-06