Overview
| Comment: | Changed parser to include nodes |
|---|---|
| Timelines: | family | ancestors | descendants | both | feature/abc |
| Files: | files | file ages | folders |
| SHA1: |
18dba95a2ee0cf3b0795ff7e88437a1a |
| User & Date: | brian on 2011-09-13 20:02:12.688 |
| Other Links: | branch diff | manifest | tags |
Context
|
2011-09-13
| ||
| 20:08 | Added a name parameter to the Tree class that will prove helpful in generating the score check-in: 029fd48614 user: brian tags: feature/abc | |
| 20:02 | Changed parser to include nodes check-in: 18dba95a2e user: brian tags: feature/abc | |
| 19:47 | Replaced roman numerals with note literals check-in: 6a80123223 user: brian tags: feature/abc | |
Changes
Modified parse.py
from [67fb9f1f54]
to [751d12bb6a].
1 2 3 4 5 6 7 8 |
#!/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
| > > | 1 2 3 4 5 6 7 8 9 10 |
#!/usr/bin/env python
import tree
from ply import lex, yacc
class Note():
def __init__(self, value, duration=.25, octave=8):
self.value = value
self.duration = duration
self.octave = octave
|
| ︙ | ︙ | |||
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 |
"NOTE_LENGTH",
"BASENOTE",
"ACCIDENTAL",
"REST",
"OCTAVE",
"CHORD_TYPE",
"QUOTE",
)
t_ignore = " |"
#t_BASENOTE = r"[A-Ga-g]"
# t_BASENOTE = r"I+V?|VI*|i+v?|vi*"
t_BASENOTE = r"[A-Ga-g]"
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_QUOTE = '"'
def t_NOTE_LENGTH(t):
r"/?\d+"
multiplier = float(t.value.strip("/"))
if t.value.startswith("/"):
multiplier = 1/multiplier
t.value = multiplier
| > > | 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 |
"NOTE_LENGTH",
"BASENOTE",
"ACCIDENTAL",
"REST",
"OCTAVE",
"CHORD_TYPE",
"QUOTE",
"NODE",
)
t_ignore = " |"
#t_BASENOTE = r"[A-Ga-g]"
# t_BASENOTE = r"I+V?|VI*|i+v?|vi*"
t_BASENOTE = r"[A-Ga-g]"
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_QUOTE = '"'
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
|
| ︙ | ︙ | |||
75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 |
# Parse (yacc)
def p_pitch_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_note(p):
'''note : pitch
'''
| > > | 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 |
# Parse (yacc)
def p_pitch_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_note(p):
'''note : pitch
'''
|
| ︙ | ︙ | |||
144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 |
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()
#print yacc.parse("GFG B'AB,, | g/2fg gab | GFG BAB | d2A AFD")
return yacc.parse(score)
| > > > > > > | 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 |
def p_rest(p):
''' rest : REST
| REST NOTE_LENGTH
'''
p[0] = Rest()
if len(p) > 2:
p[0].duration = p[2]
def node(p):
'''node: NODE
'''
p[0] = tree.tree(node.strip("(").strip(")"))
def p_error(p):
raise Exception("Syntax error at '%s' of element type %s" % (p.value, p.type))
yacc.yacc()
#print yacc.parse("GFG B'AB,, | g/2fg gab | GFG BAB | d2A AFD")
return yacc.parse(score)
|
Added tree.py version [7aba067c30].