查找以大写字母作为起始字母但前面没有空格的单词

Question

I am trying to find solution to find words in a text, must start with capital letter but not preceded by a space. example:

string1 = "MynameisStuartLittle"  # expected result ["Mynameis","Stuart","Little"]
string2 = "MynameisStuart Little Junior" # expected result ["Mynameis","Stuart"]
string3 = "My name is AlphredHitchcock" # expected result ["My","Hitchcock"]

result = re.findall(r"([^ ]([A-Z][a-z]+))",string1)
print(result)

Other alternative solution I am thinking is that to split the text by SPACE and individually check each word with regex r"([AZ][az]+)" then if if length of findall is more than 1, then that word is eligible for my result. I am looking for any single regex solution.

Answer 1

You can use negative lookbehind (?<....) :

import re

string1 = "MynameisStuartLittle"
string2 = "MynameisStuart Little Junior"
string3 = "My name is AlphredHitchcock"

print(re.findall(r"(?<! )[A-Z][a-z]*", string1)) # ['Mynameis', 'Stuart', 'Little']
print(re.findall(r"(?<! )[A-Z][a-z]*", string2)) # ['Mynameis', 'Stuart']
print(re.findall(r"(?<! )[A-Z][a-z]*", string3)) # ['My', 'Hitchcock']