Question

I have a expression and I want to extract it in python 2.6. Here is the example:

[a]+[c]*0.6/[b]-([a]-[f]*0.9)

this going to:

(
  '[a]',
  '+',
  '[c]',
  '*',
  '0.6',
  '/',
  '[b]',
  '-',
  '(',
  '[a]',
  '-',
  '[f]',
  '*',
  '0.9',
  ')',
)

I need it a list. Please give me a hand. Thanks.

Answer 1

>>> import re
>>> expr = '[a]+[c]*0.6/[b]-([a]-[f]*0.9)'
>>> re.findall('(?:\[.*?\])|(?:\d+\.*\d*)|.', expr)
['[a]', '+', '[c]', '*', '0.6', '/', '[b]', '-', '(', '[a]', '-', '[f]', '*', '0.9', ')']