8 "BASENOTE", 8 "BASENOTE", 9 "ACCIDENTAL", 9 "ACCIDENTAL", 10 "REST", 10 "REST", 11 "OCTAVE", 11 "OCTAVE", 12 "CHORD_TYPE", 12 "CHORD_TYPE", 13 ) 13 ) 14 14 > 15 t_ignore = " |" > 16 15 t_BASENOTE = r"[A-Ga-g]" | 17 #t_BASENOTE = r"[A-Ga-g]" > 18 t_BASENOTE = r"I?V?I*[^ ]" 16 t_ACCIDENTAL = r"\^{1,2}|_{1,2}|=" 19 t_ACCIDENTAL = r"\^{1,2}|_{1,2}|=" 17 t_REST = r"z" 20 t_REST = r"z" 18 t_OCTAVE = r"'+|,+" 21 t_OCTAVE = r"'+|,+" 19 t_CHORD_TYPE = r"m|7|m7|0|o|\+|mb5|sus|sus4|maj7|mmaj7|7sus4|dim|dim7|7b5|m7b5|6 22 t_CHORD_TYPE = r"m|7|m7|0|o|\+|mb5|sus|sus4|maj7|mmaj7|7sus4|dim|dim7|7b5|m7b5|6 20 23 21 def t_NOTE_LENGTH(t): 24 def t_NOTE_LENGTH(t): 22 r"/?\d+" 25 r"/?\d+" ................................................................................................................................................................................ 25 multiplier = 1/multiplier 28 multiplier = 1/multiplier 26 t.value = multiplier 29 t.value = multiplier 27 return t 30 return t 28 31 29 def t_error(t): 32 def t_error(t): 30 raise TypeError("Unknown text '%s'" % (t.value,)) 33 raise TypeError("Unknown text '%s'" % (t.value,)) 31 34 32 t_ignore = " |" < 33 < 34 lex.lex() 35 lex.lex() 35 36 36 #lex.input("GFG B'AB,, | g/2fg gab | GFG BAB | d2A AFD") 37 #lex.input("GFG B'AB,, | g/2fg gab | GFG BAB | d2A AFD") 37 s = "GFG B'AB,, | g/2fg gab | GFG BAB | d2A AFD" | 38 #s = "GFG B'AB,, | g/2fg gab | GFG BAB | d2A AFD" > 39 s = "I IV V VI I" 38 #s = "GF_G,/2" 40 #s = "GF_G,/2" 39 lex.input(s) 41 lex.input(s) 40 for tok in iter(lex.token, None): 42 for tok in iter(lex.token, None): 41 print repr(tok.type), repr(tok.value) 43 print repr(tok.type), repr(tok.value) 42 44 43 45 44 # Parse (yacc) 46 # Parse (yacc) ................................................................................................................................................................................ 48 self.value = value 50 self.value = value 49 self.duration = duration 51 self.duration = duration 50 self.octave = octave 52 self.octave = octave 51 self.accidental = None 53 self.accidental = None 52 def __repr__(self): 54 def __repr__(self): 53 return "Note %s %s %s" % (self.value, self.duration, self.octave) 55 return "Note %s %s %s" % (self.value, self.duration, self.octave) 54 56 55 #def p_element(p): < 56 # "element : note_element" < 57 # p[0] = p[1] < 58 # < 59 #def p_note_element(p): < 60 # '''note_element : note_element note_stem < 61 # | note_stem < 62 # ''' < 63 # p[0] = p[1] < 64 # < 65 #def p_note_stem(p): < 66 # '''note_stem : note''' < 67 # p[0] = p[1] < 68 # < 69 #def p_note(p): < 70 # '''note : note_or_rest < 71 # | note_or_rest NOTE_LENGTH < 72 # ''' < 73 # p[0] = p[1] < 74 # < 75 #def p_note_or_rest(p): < 76 # '''note_or_rest : pitch < 77 # | REST < 78 # ''' < 79 # p[0] = p[1] < 80 # < 81 #def p_pitch(p): < 82 < 83 def p_pitch_list(p): 57 def p_pitch_list(p): 84 '''score : score note 58 '''score : score note 85 ''' 59 ''' 86 p[0] = p[1] + [p[2]] 60 p[0] = p[1] + [p[2]] 87 61 88 def p_score(p): 62 def p_score(p): 89 '''score : note 63 '''score : note