Remove extra spaces using regex

Question

Product Name:

"                Samsung Floor Standing Invertor Air Conditioner - 2.0 Ton - AF-28FSSDAWKXFA (Q-9000) - White (Brand Warranty)                  "

I have this product name in which i need to remove all the spaces before start and also after last character ")". Regex is compulsory for me. I am trying to achieve all this in python.

Note: Or lets say i need to get only the title without starting and ending spaces.

@PedroLobito What do you mean by engine? I am using python though, if language is what you are asking about. — Mansoor Akram, Oct 14 '15 at 19:32
@JoseRicardoBustosM. I don't know the usage of strip? Would you please elaborate? — Mansoor Akram, Oct 14 '15 at 19:32
`Regex is compulsory for me` Why so, may I ask when there are easier methods? — toddlermenot, Oct 14 '15 at 19:34
Possible duplicate of [How to trim whitespace (including tabs)?](http://stackoverflow.com/questions/1185524/how-to-trim-whitespace-including-tabs) — Federico Piazza, Oct 14 '15 at 19:34
@MansoorAkram a example using regex [demo regex](https://regex101.com/r/dH8nV4/1) ..... but for this is better to use `strip` — Jose Ricardo Bustos M., Oct 14 '15 at 19:45

Pedro Lobito · Accepted Answer · 2015-10-14T19:50:48.033

3

Remove extra spaces using regex

There's no need to use a regex for this.

.strip() is what you need.

print yourString.strip()
#Samsung Floor Standing Invertor Air Conditioner - 2.0 Ton - AF-28FSSDAWKXFA (Q-9000) - White (Brand Warranty)

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string.strip(s[, chars])

Return a copy of the string with leading and trailing characters removed. If chars is omitted or None, whitespace characters are removed. If given and not None, chars must be a string; the characters in the string will be stripped from the both ends of the string this method is called on.

edited Oct 14 '15 at 19:50

answered Oct 14 '15 at 19:33

Pedro Lobito

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can you please define **"this did not worked"** ? what's the error ? – Pedro Lobito Oct 14 '15 at 19:47
No error but it did not removed any whitespace and returned the same result. – Mansoor Akram Oct 14 '15 at 19:48

score 2 · Answer 2 · answered Oct 14 '15 at 19:59

Well, if you must use regex, you can use this:

import re
s = "                Samsung Floor Standing Invertor Air Conditioner - 2.0 Ton - AF-28FSSDAWKXFA (Q-9000) - White (Brand Warranty)                  "
s = re.sub("^\s+|\s+$","",s)
print(s)

Result :

"Samsung Floor Standing Invertor Air Conditioner - 2.0 Ton - AF-28FSSDAWKXFA (Q-9000) - White (Brand Warranty)"

Jose Ricardo Bustos M. · Answer 3 · 2015-10-14T19:57:32.613

Just for fun: a solution using regex (for this is better strip)

import re
p = re.compile('\s+((\s?\S+)+)\s+')
test_str = "                Samsung Floor Standing Invertor Air Conditioner - 2.0 Ton - AF-28FSSDAWKXFA (Q-9000) - White (Brand Warranty)                  "
subst = "\\1"

result = re.sub(p, subst, test_str)
print (result)

you get,

Samsung Floor Standing Invertor Air Conditioner - 2.0 Ton - AF-28FSSDAWKXFA (Q-9000) - White (Brand Warranty)

Remove extra spaces using regex

3 Answers3