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#!/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"):
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)
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
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def p_chord(p):
'''chord : QUOTE pitch QUOTE
| QUOTE pitch CHORD_TYPE QUOTE
'''
pitch = p[2].value
pitch = pitch.upper()
p[0] = Chord(value=pitch)
p[0] = Chord(value=pitch, octave=default_octave)
if len(p) > 3:
p[0].chord_type = p[3]
def p_accidental(p):
'''pitch : ACCIDENTAL pitch
'''
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| REST NOTE_LENGTH
'''
p[0] = Rest()
if len(p) > 2:
p[0].duration = p[2]
def p_error(p):
print "Syntax error at '%s' of element type %s" % (p.value, p.type)
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)
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