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Uni.pm6
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Uni.pm6
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my class NFC is repr('VMArray') is array_type(uint32) { ... }
my class NFD is repr('VMArray') is array_type(uint32) { ... }
my class NFKC is repr('VMArray') is array_type(uint32) { ... }
my class NFKD is repr('VMArray') is array_type(uint32) { ... }
my class Uni does Positional[uint32] does Stringy is repr('VMArray') is array_type(uint32) {
multi method new(Uni:) { nqp::create(self) }
multi method new(Uni: *@codes) {
@codes.elems; # reify and test for lazy sequences
my $uni := nqp::create(self);
my $codepoints := nqp::getattr(@codes,List,'$!reified');
nqp::while(
nqp::elems($codepoints),
nqp::push_i($uni,nqp::shift($codepoints))
);
$uni
}
# array[uint32] candidate added in core_epilogue
my class UniList does PredictiveIterator {
has $!uni;
has int $!els;
has int $!i;
method !SET-SELF(\uni) {
$!uni := uni;
$!i = -1;
$!els = nqp::elems(uni);
self
}
method new (\uni) { nqp::create(self)!SET-SELF: uni }
method pull-one {
nqp::islt_i(($!i = nqp::add_i($!i, 1)), $!els)
?? nqp::atpos_i($!uni, $!i)
!! IterationEnd
}
method skip-one {
nqp::islt_i(($!i = nqp::add_i($!i, 1)), $!els)
}
method push-all(\target --> IterationEnd) {
my $uni := $!uni; # lexicals faster than attrs
my int $els = $!els;
my int $i = $!i;
nqp::while(
nqp::islt_i(($i = nqp::add_i($i, 1)), $els),
target.push: nqp::atpos_i($uni, $i)
);
$!i = $i;
}
method count-only(--> Int:D) {
nqp::p6box_i($!els - $!i - nqp::islt_i($!i,$!els))
}
method sink-all(--> IterationEnd) { $!i = $!els }
}
method list(Uni:D:) { Seq.new(UniList.new(self)) }
method Uni(Uni:D:) {
self
}
method NFC(Uni:D:) {
nqp::normalizecodes(self, nqp::const::NORMALIZE_NFC, nqp::create(NFC))
}
method NFD(Uni:D:) {
nqp::normalizecodes(self, nqp::const::NORMALIZE_NFD, nqp::create(NFD))
}
method NFKC(Uni:D:) {
nqp::normalizecodes(self, nqp::const::NORMALIZE_NFKC, nqp::create(NFKC))
}
method NFKD(Uni:D:) {
nqp::normalizecodes(self, nqp::const::NORMALIZE_NFKD, nqp::create(NFKD))
}
multi method Str(Uni:D:) {
nqp::strfromcodes(self)
}
multi method Bool(Uni:D:) {
nqp::hllbool(nqp::elems(self));
}
method codes(Uni:D:) { nqp::elems(self) }
method elems(Uni:D:) { nqp::elems(self) }
method Numeric(Uni:D:) { nqp::elems(self) }
method Int(Uni:D:) { nqp::elems(self) }
multi method EXISTS-POS(Uni:D: int \pos) {
nqp::hllbool(
nqp::islt_i(pos,nqp::elems(self)) && nqp::isge_i(pos,0)
);
}
multi method EXISTS-POS(Uni:D: Int:D \pos) {
pos < nqp::elems(self) && pos >= 0;
}
multi method AT-POS(Uni:D: int \pos) {
nqp::isge_i(pos,nqp::elems(self)) || nqp::islt_i(pos,0)
?? Failure.new(X::OutOfRange.new(
:what($*INDEX // 'Index'),
:got(pos),
:range("0..{nqp::elems(self)-1}")))
!! nqp::atpos_i(self, pos)
}
multi method AT-POS(Uni:D: Int:D \pos) {
my int $pos = nqp::unbox_i(pos);
nqp::isge_i($pos,nqp::elems(self)) || nqp::islt_i($pos,0)
?? Failure.new(X::OutOfRange.new(
:what($*INDEX // 'Index'),
:got(pos),
:range("0..{nqp::elems(self)-1}")))
!! nqp::atpos_i(self,$pos)
}
multi method gist(Uni:D:) {
self.^name ~ ':0x<' ~ self.list.fmt('%04x', ' ') ~ '>'
}
multi method raku(Uni:D:) {
'Uni.new(' ~ self.list.fmt('0x%04x', ', ') ~ ')' ~
(self.WHAT === Uni ?? '' !! '.' ~ self.^name);
}
}
my class NFD is Uni {
method new(|) {
die "Cannot create an NFD directly"; # XXX typed, better message
}
method NFD() { self }
}
my class NFC is Uni {
method new(|) {
die "Cannot create an NFC directly"; # XXX typed, better message
}
method NFC() { self }
}
my class NFKD is Uni {
method new(|) {
die "Cannot create an NFKD directly"; # XXX typed, better message
}
method NFKD() { self }
}
my class NFKC is Uni {
method NFKC() { self }
method new(|) {
die "Cannot create an NFKC directly"; # XXX typed, better message
}
}
# vim: expandtab shiftwidth=4