diff options
Diffstat (limited to 'src/mml_composemusic_mcp/lexer.py')
| -rw-r--r-- | src/mml_composemusic_mcp/lexer.py | 140 |
1 files changed, 136 insertions, 4 deletions
diff --git a/src/mml_composemusic_mcp/lexer.py b/src/mml_composemusic_mcp/lexer.py index 94876bf..e5f08a8 100644 --- a/src/mml_composemusic_mcp/lexer.py +++ b/src/mml_composemusic_mcp/lexer.py @@ -17,6 +17,7 @@ class TokenType(Enum): TEMPO = auto() GATE_TIME = auto() TIE = auto() + TIE_CMD = auto() # ^ (ppmck tie) REPEAT_START = auto() REPEAT_END = auto() BAR = auto() @@ -29,7 +30,26 @@ class TokenType(Enum): DOT = auto() AT = auto() TRANSPOSE = auto() - DETUNE = auto() + DETUNE = auto() # D (ppmck detune) + SWEEP = auto() # s (ppmck sweep) + QUANTIZE = auto() # q (ppmck quantize) + REL_VOL_UP = auto() # v+ (ppmck) + REL_VOL_DOWN = auto() # v- (ppmck) + DUTY_ENV_USE = auto() # @@ (ppmck) + VOL_ENV = auto() # @v (ppmck) + LFO_DEF = auto() # @MP (ppmck) + LFO_USE = auto() # MP (ppmck) + LFO_OFF = auto() # MPOF (ppmck) + PITCH_ENV_DEF = auto() # @EP (ppmck) + PITCH_ENV_USE = auto() # EP (ppmck) + PITCH_ENV_OFF = auto() # EPOF (ppmck) + NOTE_ENV_DEF = auto() # @EN (ppmck) + NOTE_ENV_USE = auto() # EN (ppmck) + NOTE_ENV_OFF = auto() # ENOF (ppmck) + BRACE_OPEN = auto() # { (ppmck envelope def) + BRACE_CLOSE = auto() # } (ppmck envelope def) + EQUAL = auto() # = (ppmck envelope def) + COMMA = auto() # , (ppmck sweep/envelope def) EXT_CMD = auto() # @ENV, @VIB, @GLI INVALID = auto() # unrecognised character EOF = auto() @@ -151,6 +171,10 @@ class Lexer: self._advance() self._emit(TokenType.TIE, "&", "&") return + if ch == "^": + self._advance() + self._emit(TokenType.TIE_CMD, "^", "^") + return if ch == "[": self._advance() self._emit(TokenType.REPEAT_START, "[", "[") @@ -160,6 +184,22 @@ class Lexer: count = self._read_number() self._emit(TokenType.REPEAT_END, count, "]" + count) return + if ch == "{": + self._advance() + self._emit(TokenType.BRACE_OPEN, "{", "{") + return + if ch == "}": + self._advance() + self._emit(TokenType.BRACE_CLOSE, "}", "}") + return + if ch == "=": + self._advance() + self._emit(TokenType.EQUAL, "=", "=") + return + if ch == ",": + self._advance() + self._emit(TokenType.COMMA, ",", ",") + return if ch == ".": self._advance() self._emit(TokenType.DOT, ".", ".") @@ -176,6 +216,40 @@ class Lexer: self._advance() self._emit(TokenType.FLAT, "-", "-") return + if ch == "@": + self._advance() + next_ch = self._peek() + if next_ch == "@": + self._advance() + num = self._read_number() + self._emit(TokenType.DUTY_ENV_USE, num, "@@" + num) + return + if next_ch == "v": + self._advance() + num = self._read_number() + self._emit(TokenType.VOL_ENV, num, "@v" + num) + return + if next_ch == "M" and self._peek(1) == "P": + self._advance() + self._advance() + num = self._read_number() + self._emit(TokenType.LFO_DEF, num, "@MP" + num) + return + if next_ch == "E" and self._peek(1) == "P": + self._advance() + self._advance() + num = self._read_number() + self._emit(TokenType.PITCH_ENV_DEF, num, "@EP" + num) + return + if next_ch == "E" and self._peek(1) == "N": + self._advance() + self._advance() + num = self._read_number() + self._emit(TokenType.NOTE_ENV_DEF, num, "@EN" + num) + return + num = self._read_number() + self._emit(TokenType.DUTY, num, "@" + num) + return if ch.isdigit(): num = self._read_number() self._emit(TokenType.NUMBER, num, num) @@ -185,9 +259,53 @@ class Lexer: self._emit(TokenType.TRACK_HEADER, raw.upper(), raw) return if ch.isalpha(): + # 2-character commands: MP, EP, EN and their OFF variants + if ch == "M" and self._peek(1) == "P": + self._advance() + self._advance() + if self._peek() == "O" and self._peek(1) == "F": + self._advance() + self._advance() + self._emit(TokenType.LFO_OFF, "MPOF", "MPOF") + else: + num = self._read_number() + self._emit(TokenType.LFO_USE, num, "MP" + num) + return + if ch == "E" and self._peek(1) == "P": + self._advance() + self._advance() + if self._peek() == "O" and self._peek(1) == "F": + self._advance() + self._advance() + self._emit(TokenType.PITCH_ENV_OFF, "EPOF", "EPOF") + else: + num = self._read_number() + self._emit(TokenType.PITCH_ENV_USE, num, "EP" + num) + return + if ch == "E" and self._peek(1) == "N": + self._advance() + self._advance() + if self._peek() == "O" and self._peek(1) == "F": + self._advance() + self._advance() + self._emit(TokenType.NOTE_ENV_OFF, "ENOF", "ENOF") + else: + num = self._read_number() + self._emit(TokenType.NOTE_ENV_USE, num, "EN" + num) + return + cmd = self._advance() lower = cmd.lower() - if lower in "olvtq": + if lower in "olvt": + if lower == "v" and self._peek() in "+-": + sign = self._advance() + num = self._read_number() + raw = cmd + sign + num + if sign == "+": + self._emit(TokenType.REL_VOL_UP, num, raw) + else: + self._emit(TokenType.REL_VOL_DOWN, num, raw) + return num = self._read_number() raw = cmd + num if lower == "o": @@ -198,8 +316,22 @@ class Lexer: self._emit(TokenType.VOLUME, num, raw) elif lower == "t": self._emit(TokenType.TEMPO, num, raw) - elif lower == "q": - self._emit(TokenType.DUTY, num, raw) + return + if lower == "q": + num = self._read_number() + self._emit(TokenType.QUANTIZE, num, "q" + num) + return + if cmd == "D": + num = self._read_signed_number() + self._emit(TokenType.DETUNE, num, "D" + num) + return + if lower == "s": + num0 = self._read_number() + if self._peek() == ",": + self._advance() + num1 = self._read_number() + raw = f"s{num0},{num1}" + self._emit(TokenType.SWEEP, f"{num0},{num1}", raw) return note = lower if note in "cdefgabr": |