python regular expression with re.split()

Question

i have this string equation:

400-IF(3>5,5,5)+34+IF(4>5,5,6)

i want to split it by string 'IF(3>5,5,5)', means 'IF()' syntax, so here i used two if syntax.

so re.split() should give list with length: 2 ['400-', '+34+']

I made re and used as below.

re.split('IF[\(][0-9,a-z,A-Z,\$]*[\>|\<|=|/|%|*|^]?(.*)+[\,][0-9,a-z,A-Z,\$]*[\,][0-9,a-z,A-Z,\$]+[\)]', '400-IF(3>5,5,5)+34+IF(4>5,5,6)
')

But it is not returning proper answer. What is the mistake in my re. I am new in re.

Can anyone modify this re in python?

So when you say it should give ['400-', '+34+'] (which is not the IFs with stuff inside) what do you mean? — Rob Grant
– Rob Grant, Commented Jun 9, 2015 at 6:06
So in conclusion, you don't need if() with stuff inside, you need the other stuff? — Rob Grant
– Rob Grant, Commented Jun 9, 2015 at 6:07

vks · Accepted Answer · 2015-06-09 06:06:49Z

1

x="400-IF(3>5,5,5)+34+IF(4>5,5,6)"
print [i for i in re.split(r"IF\([^)]*\)",x) if i]

You can simply use this.

answered Jun 9, 2015 at 6:06

vks

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Comments

Irshad Bhat · Accepted Answer · 2015-06-09 07:50:39Z

1

>>> z = '400-IF(3>5,5,5)+34+IF(4>5,5,6)'
>>> ' '.join(re.split(r'IF\(.*?\)',z)).split()
['400-', '+34+']

answered Jun 9, 2015 at 7:50

Irshad Bhat

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