How to remove space from number followed by unit or dimensions?

Question

Here is the input string

string1 = 0.9% SODIUM CHLORIDE 8290306544 FLUSH 0.9 % SYRINGE 10 ML
string2 = 0.9% SODIUM CHLORIDE 8290-3071-44 FLUSH 0.9 % SYRINGE 10 MM
string3 = 0.9% SODIUM CHLORIDE 290306544 FLUSH 0.9 % SYRINGE 10 cm

These are three string that I'm working on, so here I want two remove space from number followed by unit/dimension/mesurments and % as well, eg- 10 ML => 10ML but 8290306544FLUSH this is wrong. and second thing is if there is 10 digit number then make format like 4 digit - 4 digit - 2 digit. eg- 8290-3065-44 and if there is 9 digit the add zero at first and make it in format. eg- 290306544 => 0290306544 => 0290-3065-44

I want output like

string1 = 0.9% SODIUM CHLORIDE 8290-3065-44 FLUSH 0.9% SYRINGE 10ML
string2 = 0.9% SODIUM CHLORIDE 8290-3071-44 FLUSH 0.9% SYRINGE 76MM
string3 = 0.9% SODIUM CHLORIDE 0290-3065-44 FLUSH 0.9% SYRINGE 65cm

how I make python function for this

Answer 1

This code may help you.

# pip install quantities
from quantities import units
string1 ='0.9% SODIUM CHLORIDE 8290306544 FLUSH 0.9 % SYRINGE 10 ML'
string2 = '0.9% SODIUM CHLORIDE 8290-3071-44 FLUSH 0.9 % SYRINGE 10 MM'
string3 = '0.9% SODIUM CHLORIDE 290306544 FLUSH 0.9 % SYRINGE 10 cm'

def string_formater(string):
    unit_symbols = [u.symbol for _, u in units.__dict__.items() if isinstance(u, type(units.deg))] # list of all units

    string = string.strip().split(' ') # strip remove unwanted spaces and split make a list.
 

    for a in string:
        if a.lower() in unit_symbols or a.upper() in unit_symbols: # if a is a unit then combine it with his previous value example '10','cm' then it becomes '10cm'.
            index = string.index(a)
            string[index-1] = string[index-1]+ string[index]
            del string[index]

    def number_formater(num):
        num = list(num)
        num.insert(4,'-')
        num.insert(9,'-')
        return(''.join(num)) # return the formated number with dash('-')

    for a in string:
        if a.isdigit():
            if len(a) == 9:
                index = string.index(a)
                a = '0'+a
                string[index] = number_formater(a)
            elif len(a) == 10:
                index = string.index(a)
                string[index] = number_formater(a)

    return(' '.join(string))



print(string_formater(string1)) # 0.9% SODIUM CHLORIDE 8290-3065-44 FLUSH 0.9% SYRINGE 10ML
print(string_formater(string2)) # 0.9% SODIUM CHLORIDE 8290-3071-44 FLUSH 0.9% SYRINGE 76MM
print(string_formater(string3)) # 0.9% SODIUM CHLORIDE 0290-3065-44 FLUSH 0.9% SYRINGE 65cm