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# Parser for word syllables.
# Copyright (C) 2021 Ngô Ngọc Đức Huy
#
# This file is part of Hàësdáïga utils.
#
# Hàësdáïga utils is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Hàësdáïga utils is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Hàësdáïga utils. If not, see <https://www.gnu.org/licenses/>.
use JSON::Tiny;
grammar Syllable {
token TOP { <onset> <nucleus> <coda> }
token onset { <consonant>* }
token nucleus { <first-vowel> <second-vowel>? }
token coda { <consonant>* }
token vowel { <[aeiouy]>}
token rise-vowel { <[áéíóúý]>}
token fall-vowel { <[àèìòùỳ]>}
token first-vowel { [ <vowel> | <rise-vowel> | <fall-vowel> ] }
token second-vowel { [ <vowel> | '~' ] }
token consonant { <[bcdfghjlmnprstvwz']> }
}
class Parser {
method nucleus ($/) {
make ($<first-vowel>.made, $<second-vowel> ??
$<second-vowel>.made !! Nil).flat
}
method first-vowel ($/) {
make $<rise-vowel> ?? $<rise-vowel>.made !! (
$<fall-vowel> ?? $<fall-vowel>.made !! $<vowel>.made);
}
method rise-vowel ($/) {
given $/ {
when 'á' { make ('a', 'rising')}
when 'é' { make ('e', 'rising')}
when 'í' { make ('i', 'rising')}
when 'ó' { make ('o', 'rising')}
when 'ú' { make ('u', 'rising')}
when 'ý' { make ('y', 'rising')}
}
}
method fall-vowel ($/) {
given $/ {
when 'à' { make ('a', 'falling')}
when 'è' { make ('e', 'falling')}
when 'ì' { make ('i', 'falling')}
when 'ò' { make ('o', 'falling')}
when 'ù' { make ('u', 'falling')}
when 'ỳ' { make ('y', 'falling')}
}
}
method vowel ($/) {
make ($/.words.join, 'level')
}
method second-vowel ($/) { make $/.words.join }
method coda ($/) {make $<consonant> ?? $<consonant>.join !! Nil}
}
sub extras ($char) {
my %parsing;
%parsing{"type"} = "punctuation";
%parsing{"name"} = do given $char {
when ',' { 'comma' }
when ':' { 'colon' }
when '!' { 'exclam' }
when '(' { 'parenleft' }
when ')' { 'parenright' }
when '.' { 'period' }
when '?' { 'question' }
};
return %parsing
}
sub parse-one ($word) {
if $word ∈ <. , ? ! ( ) :> {
return extras($word);
}
if $word eqv '-' {
my %parsing;
%parsing{"type"} = "space";
return %parsing
}
my $C1 = Syllable.parse($word)<onset><consonant>.join;
my $C2 = Syllable.parse(
$word, actions => Parser)<coda>.made;
my ($V1, $T, $V2) = Syllable.parse(
$word, actions => Parser)<nucleus>.made;
if $V2 eqv '~' { $V2 = 'long' }
if $C1 eqv "'" { $C1 = 'glottal'}
my %parsing;
%parsing{"type"} = "syllable";
%parsing{"C1"} = $C1;
%parsing{"C2"} = $C2;
%parsing{"V1"} = $V1;
%parsing{"V2"} = $V2;
%parsing{"T" } = $T ;
return %parsing
}
sub MAIN ($phrase) {
my @list;
for $phrase.words -> $word {
@list.push(parse-one($word))
}
say to-json @list;
}
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