diff options
Diffstat (limited to 'src/mml_composemusic_mcp/parser_ppmck.py')
| -rw-r--r-- | src/mml_composemusic_mcp/parser_ppmck.py | 91 |
1 files changed, 70 insertions, 21 deletions
diff --git a/src/mml_composemusic_mcp/parser_ppmck.py b/src/mml_composemusic_mcp/parser_ppmck.py index 9540844..892c167 100644 --- a/src/mml_composemusic_mcp/parser_ppmck.py +++ b/src/mml_composemusic_mcp/parser_ppmck.py @@ -28,12 +28,25 @@ CHANNEL_MAP = { "N": "Noise", } +HEADER_KEYS = { + "#TITLE", + "#COMPOSER", + "#PROGRAMER", + "#OCTAVE-REV", + "#INCLUDE", + "#EX-DISKFM", + "#EX-NAMCO106", + "#BANK-CHANGE", + "#EFFECT-INCLUDE", +} + class PpmckParser: def __init__(self, source: str, tokens: list[Token]) -> None: self.source = source self.ctx = ParserContext(tokens) self.tracks_seen: set[str] = set() + self.track_ids_seen: set[str] = set() def parse(self) -> tuple[Program, list[ErrorDetail]]: program = Program(line=1, column=1, tracks=[]) @@ -42,6 +55,16 @@ class PpmckParser: while self.ctx.peek().type != TokenType.EOF: token = self.ctx.peek() if token.type == TokenType.HEADER: + if program.tracks: + self.ctx.add_error( + code=ErrorCode.SYNTAX_UNEXPECTED_TOKEN, + line=token.line, + column=token.column, + message="ヘッダーはトラック定義より前に記述してください。", + severity="error", + hint="すべての # ヘッダーを最初のトラックより前へ移動してください。", + context=context_line(self.source, token), + ) headers.append(self._parse_header()) continue if token.type == TokenType.COMMENT: @@ -76,6 +99,16 @@ class PpmckParser: key = parts[0] if parts else raw value = "" unterminated = False + if key.upper() not in HEADER_KEYS: + self.ctx.add_error( + code=ErrorCode.SYNTAX_UNEXPECTED_TOKEN, + line=token.line, + column=token.column, + message=f"未知のヘッダー '{key}' です。", + severity="error", + hint="MML_BNF.md に定義されたヘッダーを使用してください。", + context=context_line(self.source, token), + ) if len(parts) > 1: rest = parts[1] if rest.startswith('"'): @@ -95,6 +128,15 @@ class PpmckParser: value = rest[1:-1] else: value = rest + self.ctx.add_error( + code=ErrorCode.SYNTAX_UNEXPECTED_TOKEN, + line=token.line, + column=token.column, + message=f"ヘッダー '{key}' の値は二重引用符で囲んでください。", + severity="error", + hint=f'#TITLE "{value}" のように記述してください。', + context=context_line(self.source, token), + ) return Header( line=token.line, column=token.column, @@ -106,6 +148,17 @@ class PpmckParser: def _parse_track(self) -> Track | None: token = self.ctx.advance() ch = token.value.upper() + if ch in self.track_ids_seen: + self.ctx.add_error( + code=ErrorCode.SYNTAX_DUPLICATE_TRACK, + line=token.line, + column=token.column, + message=f"トラック '{ch}' が複数回定義されています。", + severity="error", + hint="各トラックは1回のみ定義できます。重複定義を削除してください。", + context=context_line(self.source, token), + ) + self.track_ids_seen.add(ch) if ch == "L": return Track( line=token.line, @@ -127,16 +180,6 @@ class PpmckParser: ) return None channel = CHANNEL_MAP[ch] - if channel in self.tracks_seen: - self.ctx.add_error( - code=ErrorCode.SYNTAX_DUPLICATE_TRACK, - line=token.line, - column=token.column, - message=f"トラック '{ch}' が複数回定義されています。", - severity="error", - hint="各トラックは1回のみ定義できます。重複定義を削除してください。", - context=context_line(self.source, token), - ) self.tracks_seen.add(channel) track = Track( line=token.line, @@ -215,15 +258,12 @@ class PpmckParser: def _parse_note(self) -> NoteStmt: token = self.ctx.advance() - length, dots = self._read_length(token) accidental = 0 - while True: - if self.ctx.match(TokenType.SHARP): - accidental += 1 - elif self.ctx.match(TokenType.FLAT): - accidental -= 1 - else: - break + if self.ctx.match(TokenType.SHARP): + accidental = 1 + elif self.ctx.match(TokenType.FLAT): + accidental = -1 + length, dots = self._read_length(token) return NoteStmt( line=token.line, column=token.column, @@ -245,6 +285,7 @@ class PpmckParser: def _parse_octave(self) -> OctaveStmt: token = self.ctx.advance() + self._require_value(token, "o") value = int(token.value) if token.value else 4 return OctaveStmt( line=token.line, @@ -273,6 +314,7 @@ class PpmckParser: def _parse_length(self) -> LengthStmt: token = self.ctx.advance() + self._require_value(token, "l") value = int(token.value) if token.value else 4 return LengthStmt( line=token.line, @@ -282,6 +324,7 @@ class PpmckParser: def _parse_volume(self) -> VolumeStmt: token = self.ctx.advance() + self._require_value(token, "v") value = int(token.value) if token.value else 0 return VolumeStmt( line=token.line, @@ -291,6 +334,7 @@ class PpmckParser: def _parse_duty(self) -> DutyStmt: token = self.ctx.advance() + self._require_value(token, "q") value = int(token.value) if token.value else 0 return DutyStmt( line=token.line, @@ -300,6 +344,7 @@ class PpmckParser: def _parse_tempo(self) -> TempoStmt: token = self.ctx.advance() + self._require_value(token, "t") value = int(token.value) if token.value else 120 return TempoStmt( line=token.line, @@ -307,6 +352,12 @@ class PpmckParser: value=value, ) + def _require_value(self, token: Token, command: str) -> None: + if not token.value: + self.ctx.add_missing_number_error( + token, command, context_line(self.source, token) + ) + def _parse_tie(self) -> TieStmt: token = self.ctx.advance() next_token = self.ctx.peek() @@ -373,8 +424,6 @@ class PpmckParser: ) -def parse_ppmck( - source: str, tokens: list[Token] -) -> tuple[Program, list[ErrorDetail]]: +def parse_ppmck(source: str, tokens: list[Token]) -> tuple[Program, list[ErrorDetail]]: parser = PpmckParser(source, tokens) return parser.parse() |