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fixup! feat: parsec based lyric parser

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eternal-flame-AD 2024-07-24 20:59:40 -05:00
parent 2341d13721
commit bf7f2f508b
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1 changed files with 8 additions and 7 deletions
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15
src/lib/lyrics/parser.ts
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@ -86,7 +86,7 @@ const alpha = alt_sc(
const alphaStr = apply(rep(alpha), (r) => r.join('')); const alphaStr = apply(rep(alpha), (r) => r.join(''));
const spaces = rep_sc(str(' ')); const spaces = rep_sc(str(' '));
const unicodeStr = rep_sc(tok('char')); const unicodeStr = rep(tok('char'));
function trimmed<K, T>(p: Parser<K, Token<T>[]>): Parser<K, Token<T>[]> { function trimmed<K, T>(p: Parser<K, Token<T>[]>): Parser<K, Token<T>[]> {
return apply(p, (r) => { return apply(p, (r) => {
@ -132,6 +132,10 @@ const lrcTag = apply(
}) })
); );
function joinTokens<T>(tokens: Token<T>[]) {
return tokens.map((t) => t.text).join('');
}
function tokenParserToText<K, T>(p: Parser<K, Token<T>> | Parser<K, Token<T>[]>): Parser<K, string> { function tokenParserToText<K, T>(p: Parser<K, Token<T>> | Parser<K, Token<T>[]>): Parser<K, string> {
return apply(p, (r: Token<T> | Token<T>[]) => { return apply(p, (r: Token<T> | Token<T>[]) => {
if (Array.isArray(r)) { if (Array.isArray(r)) {
@ -141,13 +145,9 @@ function tokenParserToText<K, T>(p: Parser<K, Token<T>> | Parser<K, Token<T>[]>)
}); });
} }
function joinTokens<T>(tokens: Token<T>[]) {
return tokens.map((t) => t.text).join('');
}
function lrcLine( function lrcLine(
wordDiv = '' wordDiv = ''
): Parser<unknown, ['script_item', ScriptItem] | ['lrc_tag', IDTag] | ['comment', string] | ['empty', string]> { ): Parser<unknown, ['script_item', ScriptItem] | ['lrc_tag', IDTag] | ['comment', string] | ['empty', null]> {
return alt_sc( return alt_sc(
apply(seq(squareTS, rep_sc(seq(opt_sc(angleTS), trimmed(rep_sc(anythingTyped(['char', '[', ']'])))))), (r) => { apply(seq(squareTS, rep_sc(seq(opt_sc(angleTS), trimmed(rep_sc(anythingTyped(['char', '[', ']'])))))), (r) => {
const start = r[0]; const start = r[0];
@ -174,7 +174,8 @@ function lrcLine(
return ['script_item', { start, text, words } as any as ScriptItem]; // TODO: Complete this return ['script_item', { start, text, words } as any as ScriptItem]; // TODO: Complete this
}), }),
apply(lrcTag, (r) => ['lrc_tag', r as IDTag]), apply(lrcTag, (r) => ['lrc_tag', r as IDTag]),
apply(seq(spaces, str('#'), rep_sc(unicodeStr)), (cmt) => ['comment', cmt[2].join('')] as const) apply(seq(spaces, str('#'), unicodeStr), (cmt) => ['comment', cmt[2].join('')] as const),
apply(spaces, (_) => ['empty', null] as const)
); );
} }