spiffyscore

Diff
Login

Diff

Differences From Artifact [3ec57c3fbe]:

To Artifact [2894767aa0]:


1


2
3
4
5

6
7


8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39

40
41
42
43
44
45
46
47
48
49
50
51

52
53
54
55
56
57
58
#!/usr/bin/env python



from ply import lex, yacc
class Note():
    def __init__(self, value, duration=.25, octave=8):

        self.value = value
        self.duration = duration


        self.octave = octave
        self.accidental = None
    def __repr__(self):
        return "Note %s %s %s" % (self.value, self.duration, self.octave)

class Chord():
    def __init__(self, value, duration=.5, chord_type="major", octave=5):
        self.value = value
        self.duration = duration
        self.chord_type = chord_type
        self.octave = octave
    def __repr__(self):
        return "Chord %s %s %s" % (self.value, self.duration, self.chord_type, self.octave)

class Rest():
    def __init__(self, duration=.25):
        self.duration = duration
    def __repr__(self):
        return "Rest node %s" % self.duration


def parse(score, default_octave=8):
    # Tokenize (lex)
    tokens = (
        "NOTE_LENGTH",
        "BASENOTE",
        "ACCIDENTAL",
        "REST",
        "OCTAVE",
        "CHORD_TYPE",
        "PAREN",
        "SYNCOPATE",

    )

    t_ignore = " |"

    #t_BASENOTE = r"[A-Ga-g]"
    t_BASENOTE = r"I+V?|VI*|i+v?|vi*"
    t_ACCIDENTAL = r"\^{1,2}|_{1,2}|="
    t_REST = r"z"
    t_OCTAVE = r"'+|,+"
    t_CHORD_TYPE = r"m|7|m7|0|o|\+|mb5|sus|sus4|maj7|mmaj7|7sus4|dim|dim7|7b5|m7b5|6|b6|m6|mb6|46|maj9|9|add9|7b9|m9"
    t_PAREN = "\(|\)"
    t_SYNCOPATE = "\+|-"


    def t_NOTE_LENGTH(t):
        r"/?\d+"
        multiplier = float(t.value.strip("/"))
        if t.value.startswith("/"):
            multiplier = 1/multiplier
        t.value = multiplier

>
>



|
>
|
|
>
>

<




|
|

<
<

|


|














|

>




|
|
|



|

>







1
2
3
4
5
6
7
8
9
10
11
12
13

14
15
16
17
18
19
20


21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
#!/usr/bin/env python

import tree

from ply import lex, yacc
class Note():
    def __init__(self, value, duration=1, octave=8):
        self.duration = duration
        if value > 12:
            self.duration += 1
            value = value % 12
        self.value = value
        self.octave = octave

    def __repr__(self):
        return "Note %s %s %s" % (self.value, self.duration, self.octave)

class Chord():
    def __init__(self, notes, duration=1):
        self.notes = notes
        self.duration = duration


    def __repr__(self):
        return "Chord %s" % (self.notes)

class Rest():
    def __init__(self, duration=1):
        self.duration = duration
    def __repr__(self):
        return "Rest node %s" % self.duration


def parse(score, default_octave=8):
    # Tokenize (lex)
    tokens = (
        "NOTE_LENGTH",
        "BASENOTE",
        "ACCIDENTAL",
        "REST",
        "OCTAVE",
        "CHORD_TYPE",
        "BRACKET",
        "SYNCOPATE",
        "NODE",
    )

    t_ignore = " |"

    t_BASENOTE = r"[A-Ga-g]"
#    t_BASENOTE = r"I+V?|VI*|i+v?|vi*"
    t_ACCIDENTAL = r"\^{1}|_{1}|="
    t_REST = r"z"
    t_OCTAVE = r"'+|,+"
    t_CHORD_TYPE = r"m|7|m7|0|o|\+|mb5|sus|sus4|maj7|mmaj7|7sus4|dim|dim7|7b5|m7b5|6|b6|m6|mb6|46|maj9|9|add9|7b9|m9"
    t_BRACKET = r"\[|\]"
    t_SYNCOPATE = "\+|-"
    t_NODE = r"\([a-zA-Z0-9_-]+\)"

    def t_NOTE_LENGTH(t):
        r"/?\d+"
        multiplier = float(t.value.strip("/"))
        if t.value.startswith("/"):
            multiplier = 1/multiplier
        t.value = multiplier
67
68
69
70
71
72
73

74
75
76
77
78
79
80

81
82
83
84
85
86
87

    # Parse (yacc)

    def p_note_list(p):
        '''score : score note
                 | score chord
                 | score rest

        '''
        p[0] = p[1] + [p[2]]

    def p_score(p):
        '''score : note
                 | chord
                 | rest

        '''
        p[0] = [p[1]]


    def p_chord_length(p):
        ''' chord : chord NOTE_LENGTH
        '''







>







>







71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93

    # Parse (yacc)

    def p_note_list(p):
        '''score : score note
                 | score chord
                 | score rest
            | score node
        '''
        p[0] = p[1] + [p[2]]

    def p_score(p):
        '''score : note
                 | chord
                 | rest
            | node
        '''
        p[0] = [p[1]]


    def p_chord_length(p):
        ''' chord : chord NOTE_LENGTH
        '''
95
96
97
98
99
100
101
102
103
104



105




106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121



122
123
124
125
126
127
128
129
130
131
132
133
134










135
136
137
138
139
140
141
142
143
144






145



146
147
148
149
150
        '''
        new_note = p[1]
        new_note.duration = p[2]
        p[0] = new_note


    def p_chord(p):
        '''chord : PAREN note PAREN
                 | PAREN note CHORD_TYPE PAREN
        '''



        pitch = p[2].value




        pitch = pitch.upper()
        p[0] = Chord(value=pitch, octave=default_octave)
        if len(p) > 3:
            p[0].chord_type = p[3]


    def p_note_syncopate(p):
        ''' note : note SYNCOPATE
        '''
        note.syncopate = p[2]


    def p_accidental(p):
        '''note : ACCIDENTAL note
        '''
        p[2].accidental = p[1]



        p[0] = p[2]

    def p_octave(p):
        '''note : note OCTAVE
        '''
        count = len(p[2])
        increment_or_decrement = 1 if p[2].startswith("'") else -1
        p[1].octave += (count * increment_or_decrement)
        p[0] = p[1]

    def p_note(p):
        '''note : BASENOTE
        '''










        p[0] = Note(p[1], octave=default_octave)

    def p_rest(p):
        ''' rest : REST
                 | REST NOTE_LENGTH
        '''
        p[0] = Rest()
        if len(p) > 2:
            p[0].duration = p[2]







    def p_error(p):



        raise Exception("Syntax error at '%s' of element type %s" % (p.value, p.type))
        
    yacc.yacc()

    return yacc.parse(score)







|
|

>
>
>
|
>
>
>
>
|
|
|
|











|
>
>
>













>
>
>
>
>
>
>
>
>
>
|









>
>
>
>
>
>

>
>
>





101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
        '''
        new_note = p[1]
        new_note.duration = p[2]
        p[0] = new_note


    def p_chord(p):
        '''chord : BRACKET note BRACKET
                 | BRACKET note CHORD_TYPE BRACKET
        '''

        if len(p) > 3:
            chorded_notes = []
            root_note = p[2].value
            for offset in [0, 4, 7]:
                chorded_notes.append(Note(root_note+offset, octave=p[2].octave))
            chord = Chord(notes=chorded_notes)
        else:  # This won'k work until the grammar is modified to rocognise multiple notes botween brackets
            chord = p[1:-2]
                

        p[0] = chord


    def p_note_syncopate(p):
        ''' note : note SYNCOPATE
        '''
        note.syncopate = p[2]


    def p_accidental(p):
        '''note : ACCIDENTAL note
        '''
        if p[1] == "^":
            p[2].value += 1
        else:
            p[2].value -= 1
        p[0] = p[2]

    def p_octave(p):
        '''note : note OCTAVE
        '''
        count = len(p[2])
        increment_or_decrement = 1 if p[2].startswith("'") else -1
        p[1].octave += (count * increment_or_decrement)
        p[0] = p[1]

    def p_note(p):
        '''note : BASENOTE
        '''
        notes = {
            "C": 0,
            "D": 2,
            "E": 4,
            "F": 5,
            "G": 7,
            "A": 9,
            "B": 11
        }
        n = notes[p[1]]
        p[0] = Note(n, octave=default_octave)

    def p_rest(p):
        ''' rest : REST
                 | REST NOTE_LENGTH
        '''
        p[0] = Rest()
        if len(p) > 2:
            p[0].duration = p[2]

    def p_node(p):
        '''node : NODE
        '''
        p[0] = tree.Tree(p[1].strip("(").strip(")"))


    def p_error(p):
#        import ipdb
#        ipdb.set_trace()
        print p
        raise Exception("Syntax error at '%s' of element type %s" % (p.value, p.type))
        
    yacc.yacc()

    return yacc.parse(score)