Name
SPVM::Unicode - Unicode Utilities.
Description
The Unicode class of SPVM has methods for Unicode utilities.
Usage
use Unicode;
my $string = "あいうえお";
my $pos = 0;
while ((my $uchar = Unicode->uchar($string, \$pos)) >= 0);
# ...
}Class Methods
ERROR_INVALID_UTF8
static method INVALID_UTF8 : int ();Returns -2.
is_unicode_scalar_value
static method is_unicode_scalar_value : int ($code_point: int);If the code point $code_point is a Unicode scalar value, returns 1. Otherwise returns 0.
uchar
static method uchar : int ($string : string, $offset_ref : int*);Gets a Unicode codepoint by parsing UTF-8 string $string with the offset $$offset_ref and proceed the offset to the next parsing posision.
If $$offset_ref is over the string length, returns -1.
If an invalid UTF-8 character is found, returns the value of "ERROR_INVALID_UTF8".
uchar_to_utf8
static method uchar_to_utf8 : string ($unicode_code_point : int);Converts the Unicode codepoint $unicode_code_point to a UTF-8 character.
If the $unicode_code_point is invalid Unicode code point, returns undef.
utf8_to_utf16
static method utf8_to_utf16 : short[] ($string : string);Converts the UTF-8 string $string to a UTF-16 string, and returns it.
utf16_to_utf8
static method utf16_to_utf8 : string ($string : short[]);Converts the UTF-16 string $string to a UTF-8 string, and returns it.
utf32_to_utf16
static method utf32_to_utf16 : short[] ($string : int[]);Converts the UTF-32 string $string to a UTF-16 string, and returns it.
utf16_to_utf32
static method utf16_to_utf32 : int[] ($string : short[]);Converts the UTF-16 string $string to a UTF-32 string, and returns it.
Copyright & License
Copyright (c) 2023 Yuki Kimoto
MIT License