inputdata = '(1 ((st 8) (pitch 67) (dur 4) (keysig 1) (timesig 12) (fermata 0))((st 12) (pitch 67) (dur 8) (keysig 1) (timesig 12) (fermata 0)))'
from pyparsing import OneOrMore, nestedExpr
data = OneOrMore(nestedExpr()).parseString(inputdata)
print data
# [['1', [['st', '8'], ['pitch', '67'], ['dur', '4'], ['keysig', '1'], ['timesig', '12'], ['fermata', '0']], [['st', '12'], ['pitch', '67'], ['dur', '8'], ['keysig', '1'], ['timesig', '12'], ['fermata', '0']]]]
为了完整起见，这是格式化结果的格式（使用texttable）：
from texttable import Texttable
tab = Texttable()
for row in data.asList()[0][1:]:
row = dict(row)
tab.header(row.keys())
tab.add_row(row.values())
print tab.draw()
+ --------- + -------- + ---- + ------- + ----- + --------- +
| Timesig | keyig | st | 音高| dur | Fermata |
+ ========= + ======== + ============================= +
| 12 | 1 | 8 | 67 | 4 | 0 |
+ --------- + -------- + ---- + ------- + ----- + --------- +
| 12 | 1 | 12 | 67 | 8 | 0 |
+ --------- + -------- + ---- + ------- + ----- + --------- +
将该数据转换回Lisp表示法：
def lisp(x):
return '(%s)' % ' '.join(lisp(y) for y in x) if isinstance(x, list) else x
d = lisp(d[0])
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