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jnthnjnthn
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Toss qalt_nfas from P5Regex.
Alternations are always sequential.
1 parent 8ae6f20 commit 29b1d0c

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+91
-112
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1 file changed

+91
-112
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‎src/QRegex/P5Regex/Actions.nqp‎

Lines changed: 91 additions & 112 deletions
Original file line numberDiff line numberDiff line change
@@ -187,6 +187,97 @@ class QRegex::P5Regex::Actions is HLL::Actions {
187187
elsif $mod eq '+' { $ast.backtrack('g') }
188188
$ast;
189189
}
190+
191+
our sub qbuildsub($qast, $block = QAST::Block.new(), :$anon, :$addself) {
192+
my $blockid := $block.cuid;
193+
my $hashpast := QAST::Op.new( :op<hash> );
194+
for capnames($qast, 0) {
195+
if $_.key gt '' {
196+
$hashpast.push(QAST::SVal.new( :value($_.key) ));
197+
$hashpast.push(QAST::IVal.new( :value(
198+
nqp::iscclass(pir::const::CCLASS_NUMERIC, $_.key, 0) + ($_.value > 1) * 2) ));
199+
}
200+
}
201+
my $initpast := QAST::Stmts.new();
202+
if $addself {
203+
$initpast.push(QAST::Var.new( :name('self'), :scope('local'), :decl('param') ));
204+
}
205+
my $capblock := QAST::BlockMemo.new( :name($blockid ~ '_caps'), $hashpast );
206+
$initpast.push(QAST::Stmt.new($capblock));
207+
208+
my $nfapast := QRegex::NFA.new.addnode($qast).qast;
209+
if $nfapast {
210+
my $nfablock := QAST::BlockMemo.new( :name($blockid ~ '_nfa'), $nfapast);
211+
$initpast.push(QAST::Stmt.new($nfablock));
212+
}
213+
214+
unless $block.symbol('$¢') {
215+
$initpast.push(QAST::Var.new(:name<$¢>, :scope<lexical>, :decl('var')));
216+
$block.symbol('$¢', :scope<lexical>);
217+
}
218+
219+
$block<orig_qast> := $qast;
220+
221+
$qast := QAST::Regex.new( :rxtype<concat>,
222+
QAST::Regex.new( :rxtype<scan> ),
223+
$qast,
224+
($anon ??
225+
QAST::Regex.new( :rxtype<pass> ) !!
226+
QAST::Regex.new( :rxtype<pass>, :name(%*RX<name>) )));
227+
$block.push($initpast);
228+
$block.push($qast);
229+
$block;
230+
}
231+
232+
sub capnames($ast, $count) {
233+
my %capnames;
234+
my $rxtype := $ast.rxtype;
235+
if $rxtype eq 'concat' {
236+
for $ast.list {
237+
my %x := capnames($_, $count);
238+
for %x { %capnames{$_.key} := +%capnames{$_.key} + $_.value; }
239+
$count := %x{''};
240+
}
241+
}
242+
elsif $rxtype eq 'altseq' || $rxtype eq 'alt' {
243+
my $max := $count;
244+
for $ast.list {
245+
my %x := capnames($_, $count);
246+
for %x {
247+
%capnames{$_.key} := +%capnames{$_.key} < 2 && %x{$_.key} == 1 ?? 1 !! 2;
248+
}
249+
$max := %x{''} if %x{''} > $max;
250+
}
251+
$count := $max;
252+
}
253+
elsif $rxtype eq 'subrule' && $ast.subtype eq 'capture' {
254+
my $name := $ast.name;
255+
if $name eq '' { $name := $count; $ast.name($name); }
256+
my @names := nqp::split('=', $name);
257+
for @names {
258+
if $_ eq '0' || $_ > 0 { $count := $_ + 1; }
259+
%capnames{$_} := 1;
260+
}
261+
}
262+
elsif $rxtype eq 'subcapture' {
263+
for nqp::split(' ', $ast.name) {
264+
if $_ eq '0' || $_ > 0 { $count := $_ + 1; }
265+
%capnames{$_} := 1;
266+
}
267+
my %x := capnames($ast[0], $count);
268+
for %x { %capnames{$_.key} := +%capnames{$_.key} + %x{$_.key} }
269+
$count := %x{''};
270+
}
271+
elsif $rxtype eq 'quant' {
272+
my %astcap := capnames($ast[0], $count);
273+
for %astcap { %capnames{$_} := 2 }
274+
$count := %astcap{''};
275+
}
276+
%capnames{''} := $count;
277+
nqp::deletekey(%capnames, '$!from');
278+
nqp::deletekey(%capnames, '$!to');
279+
%capnames;
280+
}
190281

191282

192283
# XXX Below here copied from p6regex; needs review
@@ -419,118 +510,6 @@ class QRegex::P5Regex::Actions is HLL::Actions {
419510
make 0;
420511
}
421512

422-
our sub qbuildsub($qast, $block = QAST::Block.new(), :$anon, :$addself) {
423-
my $blockid := $block.cuid;
424-
my $hashpast := QAST::Op.new( :op<hash> );
425-
for capnames($qast, 0) {
426-
if $_.key gt '' {
427-
$hashpast.push(QAST::SVal.new( :value($_.key) ));
428-
$hashpast.push(QAST::IVal.new( :value(
429-
nqp::iscclass(pir::const::CCLASS_NUMERIC, $_.key, 0) + ($_.value > 1) * 2) ));
430-
}
431-
}
432-
my $initpast := QAST::Stmts.new();
433-
if $addself {
434-
$initpast.push(QAST::Var.new( :name('self'), :scope('local'), :decl('param') ));
435-
}
436-
my $capblock := QAST::BlockMemo.new( :name($blockid ~ '_caps'), $hashpast );
437-
$initpast.push(QAST::Stmt.new($capblock));
438-
439-
my $nfapast := QRegex::NFA.new.addnode($qast).qast;
440-
if $nfapast {
441-
my $nfablock := QAST::BlockMemo.new( :name($blockid ~ '_nfa'), $nfapast);
442-
$initpast.push(QAST::Stmt.new($nfablock));
443-
}
444-
qalt_nfas($qast, $blockid, $initpast);
445-
446-
unless $block.symbol('$¢') {
447-
$initpast.push(QAST::Var.new(:name<$¢>, :scope<lexical>, :decl('var')));
448-
$block.symbol('$¢', :scope<lexical>);
449-
}
450-
451-
$block<orig_qast> := $qast;
452-
453-
$qast := QAST::Regex.new( :rxtype<concat>,
454-
QAST::Regex.new( :rxtype<scan> ),
455-
$qast,
456-
($anon ??
457-
QAST::Regex.new( :rxtype<pass> ) !!
458-
QAST::Regex.new( :rxtype<pass>, :name(%*RX<name>) )));
459-
$block.push($initpast);
460-
$block.push($qast);
461-
$block;
462-
}
463-
464-
sub capnames($ast, $count) {
465-
my %capnames;
466-
my $rxtype := $ast.rxtype;
467-
if $rxtype eq 'concat' {
468-
for $ast.list {
469-
my %x := capnames($_, $count);
470-
for %x { %capnames{$_.key} := +%capnames{$_.key} + $_.value; }
471-
$count := %x{''};
472-
}
473-
}
474-
elsif $rxtype eq 'altseq' || $rxtype eq 'alt' {
475-
my $max := $count;
476-
for $ast.list {
477-
my %x := capnames($_, $count);
478-
for %x {
479-
%capnames{$_.key} := +%capnames{$_.key} < 2 && %x{$_.key} == 1 ?? 1 !! 2;
480-
}
481-
$max := %x{''} if %x{''} > $max;
482-
}
483-
$count := $max;
484-
}
485-
elsif $rxtype eq 'subrule' && $ast.subtype eq 'capture' {
486-
my $name := $ast.name;
487-
if $name eq '' { $name := $count; $ast.name($name); }
488-
my @names := nqp::split('=', $name);
489-
for @names {
490-
if $_ eq '0' || $_ > 0 { $count := $_ + 1; }
491-
%capnames{$_} := 1;
492-
}
493-
}
494-
elsif $rxtype eq 'subcapture' {
495-
for nqp::split(' ', $ast.name) {
496-
if $_ eq '0' || $_ > 0 { $count := $_ + 1; }
497-
%capnames{$_} := 1;
498-
}
499-
my %x := capnames($ast[0], $count);
500-
for %x { %capnames{$_.key} := +%capnames{$_.key} + %x{$_.key} }
501-
$count := %x{''};
502-
}
503-
elsif $rxtype eq 'quant' {
504-
my %astcap := capnames($ast[0], $count);
505-
for %astcap { %capnames{$_} := 2 }
506-
$count := %astcap{''};
507-
}
508-
%capnames{''} := $count;
509-
nqp::deletekey(%capnames, '$!from');
510-
nqp::deletekey(%capnames, '$!to');
511-
%capnames;
512-
}
513-
514-
sub qalt_nfas($ast, $subid, $initpast) {
515-
my $rxtype := $ast.rxtype;
516-
if $rxtype eq 'alt' {
517-
my $nfapast := QAST::Op.new( :op('list') );
518-
$ast.name(QAST::Node.unique('alt_nfa_') ~ '_' ~ ~nqp::time_n());
519-
for $ast.list {
520-
qalt_nfas($_, $subid, $initpast);
521-
$nfapast.push(QRegex::NFA.new.addnode($_).qast(:non_empty));
522-
}
523-
my $nfablock := QAST::BlockMemo.new( :name($subid ~ '_' ~ $ast.name), $nfapast);
524-
$initpast.push(QAST::Stmt.new($nfablock));
525-
}
526-
elsif $rxtype eq 'subcapture' || $rxtype eq 'quant' {
527-
qalt_nfas($ast[0], $subid, $initpast)
528-
}
529-
elsif $rxtype eq 'concat' || $rxtype eq 'altseq' || $rxtype eq 'conj' || $rxtype eq 'conjseq' {
530-
for $ast.list { qalt_nfas($_, $subid, $initpast) }
531-
}
532-
}
533-
534513
method subrule_alias($ast, $name) {
535514
if $ast.name gt '' { $ast.name( $name ~ '=' ~ $ast.name ); }
536515
else { $ast.name($name); }

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