|
10 | 10 | def UsernameValidation(strParam): |
11 | 11 |
|
12 | 12 | # username is between 4 and 25 characters |
13 | | - if len(strParam) <= 25 and len(strParam) >= 4: |
14 | | - flag1 = True |
15 | | - else: |
16 | | - flag1 = False |
| 13 | + if len(strParam) < 4 or len(strParam) > 25 : |
| 14 | + return False |
17 | 15 |
|
18 | 16 | # start with a letter |
19 | | - if str(strParam[0]).isalpha(): |
20 | | - flag2 = True |
21 | | - else: |
22 | | - flag2 = False |
23 | | - |
24 | | - # contains only letters, numbers and underscore |
25 | | - valid_grammar = "abcdefghijklmnopqrstuvwxyz0123456789_" |
26 | | - |
27 | | - for char in strParam: |
28 | | - if str(char).isalpha() == False: |
29 | | - if char in valid_grammar: |
30 | | - flag3 = True |
31 | | - else: |
32 | | - flag3 = False |
33 | | - |
34 | | - else: |
35 | | - if str.lower(char) in valid_grammar: |
36 | | - flag3 = True |
37 | | - else: |
38 | | - flag3 = False |
39 | | - |
| 17 | + if not str(strParam[0]).isalpha(): |
| 18 | + return False; |
40 | 19 |
|
41 | 20 | # can't end with an underscore |
42 | | - if str(strParam[-1]) != '_': |
43 | | - flag4 = True |
44 | | - else: |
45 | | - flag4 = False |
| 21 | + if str(strParam[-1] ) == '_': |
| 22 | + return False; |
| 23 | + |
| 24 | + # contains only letters, numbers and underscore |
| 25 | + valid_grammar = set('abcdefghijklmnopqrstuvwxyz0123456789_') |
46 | 26 |
|
47 | | - final_output = flag1 and flag2 and flag3 and flag4 |
| 27 | + for ch in strParam: |
| 28 | + if ch.lower() not in valid_grammar: |
| 29 | + return False; |
48 | 30 |
|
49 | | - # code goes here |
50 | | - return final_output |
| 31 | + return True |
51 | 32 |
|
52 | 33 | # keep this function call here |
53 | 34 | TC1 = "aa_" |
54 | | -TC2 = "u__hello_world123" |
| 35 | +TC2 = "uaa__hello_worldW" |
55 | 36 |
|
56 | 37 | print(TC1, UsernameValidation(TC1)) |
57 | 38 | print(TC2, UsernameValidation(TC2)) |
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