21.4 LAB: Parsing dates   Write a program to read dates from input, one date per line. Each date's format must be as follows: March 1, 1990. Any date not following that format is incorrect and should be ignored. The input ends with -1 on a line alone. Output each correct date as: 3/1/1990. Hint: Use string[start:end] to get a substring when parsing the string and extracting the date. Use the split() method to break the input into tokens.   Ex: If the input is: March 1, 1990 April 2 1995 7/15/20 December 13, 2003 -1   then the output is: 3/1/1990 12/13/2003

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Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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21.4 LAB: Parsing dates

 

Write a program to read dates from input, one date per line. Each date's format must be as follows: March 1, 1990. Any date not following that format is incorrect and should be ignored. The input ends with -1 on a line alone. Output each correct date as: 3/1/1990.

Hint: Use string[start:end] to get a substring when parsing the string and extracting the date. Use the split() method to break the input into tokens.

 

Ex: If the input is:

March 1, 1990

April 2 1995

7/15/20

December 13, 2003

-1

 

then the output is:

3/1/1990

12/13/2003

 

Use Python for this!

LAB
21.4.1: LAB: Parsing dates
0/ 10
АCTIVITY
main.py
Load default template.
1 def get_month_as_int(monthstring):
if monthstring == 'January':
month_int - 1
elif monthstring ==
month_int = 2
elif monthstring == 'March':
month_int = 3
elif monthstring =
month_int = 4
elif monthstring
month_int = 5
elif monthstring == 'June ':
month_int = 6
elif monthstring =
month_int = 7
elif monthstring == 'August':
month_int = 8
elif monthstring ==
4
5
'February':
7
1e
11
== 'May':
12
13
14
15
'July':
16
17
18
19
"September':
month_int = 9
elif monthstring == 'october':
month_int = 10
elif monthstring == 'November':
month_int = 11
elif monthstring == 'December':
month_int = 12
else:
20
21
22
23
24
25
26
27
month_int = e
28
29
30
return month_int
31
32
33 user_string = input()
34
35 # TODO: Read dates from input, parse the dates to find the one
in the correct format, and output in m/d/yyyy format
36 #
Transcribed Image Text:LAB 21.4.1: LAB: Parsing dates 0/ 10 АCTIVITY main.py Load default template. 1 def get_month_as_int(monthstring): if monthstring == 'January': month_int - 1 elif monthstring == month_int = 2 elif monthstring == 'March': month_int = 3 elif monthstring = month_int = 4 elif monthstring month_int = 5 elif monthstring == 'June ': month_int = 6 elif monthstring = month_int = 7 elif monthstring == 'August': month_int = 8 elif monthstring == 4 5 'February': 7 1e 11 == 'May': 12 13 14 15 'July': 16 17 18 19 "September': month_int = 9 elif monthstring == 'october': month_int = 10 elif monthstring == 'November': month_int = 11 elif monthstring == 'December': month_int = 12 else: 20 21 22 23 24 25 26 27 month_int = e 28 29 30 return month_int 31 32 33 user_string = input() 34 35 # TODO: Read dates from input, parse the dates to find the one in the correct format, and output in m/d/yyyy format 36 #
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