Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Objectives Practice defining functions with parameters. Practice manipulating strings. Implement your own version of Python string methods The provided file sring_functions.py defines several string functions, but does not include the code for them. Add code to implement functions that are equivalent in behavior to the corresponding built-in Python string function. Every function MUST return a value. Use loops to implement your functions. You cannot use built-in string methods, string functions, or string-operators to implement your functions. Each funetion is worth a maximum of 10 points. 1. cs110_upper: Takes a string as a parameter and returns it as a string in all uppercase. Hint: Use the ord () function to get the ASCI value of a character. For example, ord ('a') returns the integer 97. You will also need to use the chr (value) function that returns a string of one character whose ASCII code is the integer value. For example, chr (97) returns the string 'a'. You cannot use the built-in string function upper () for this. 2. cs110_1strip: Takes a string as a parameter and returns the same string with the whitespace stripped out from the left side of the string. 3. cs110_replace: Takes a string and two characters (charl and char2) as parameters and returns a string with charl replaced by char2 in the string. 4. cs110_in: Takes a long string and a short string as parameters and returns True if the short string is contained in the long string, and False if it is not. 5. cs110_title: Takes a string and retums a string with the first character capitalized for every word. The rest of the characters are in lower case. For example, if the input to the function is "I like Python a lot", the function should return a string that looks like "I Like Python A Lot". Note: The point of this lab is for you to use loop: to reimplement the string functions. You may not use Python's built-in string methodas or operators to implement yours – for example, in, . upper (), .isUpper (), .strip (), .split (). You may use these Python functions: len (), ord (), str (). If you are not sure whether you can use a specific function or method, ask in Piazza.
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Transcribed Image Text:Objectives Practice defining functions with parameters. Practice manipulating strings. Implement your own version of Python string methods The provided file sring_functions.py defines several string functions, but does not include the code for them. Add code to implement functions that are equivalent in behavior to the corresponding built-in Python string function. Every function MUST return a value. Use loops to implement your functions. You cannot use built-in string methods, string functions, or string-operators to implement your functions. Each funetion is worth a maximum of 10 points. 1. cs110_upper: Takes a string as a parameter and returns it as a string in all uppercase. Hint: Use the ord () function to get the ASCI value of a character. For example, ord ('a') returns the integer 97. You will also need to use the chr (value) function that returns a string of one character whose ASCII code is the integer value. For example, chr (97) returns the string 'a'. You cannot use the built-in string function upper () for this. 2. cs110_1strip: Takes a string as a parameter and returns the same string with the whitespace stripped out from the left side of the string. 3. cs110_replace: Takes a string and two characters (charl and char2) as parameters and returns a string with charl replaced by char2 in the string. 4. cs110_in: Takes a long string and a short string as parameters and returns True if the short string is contained in the long string, and False if it is not. 5. cs110_title: Takes a string and retums a string with the first character capitalized for every word. The rest of the characters are in lower case. For example, if the input to the function is "I like Python a lot", the function should return a string that looks like "I Like Python A Lot". Note: The point of this lab is for you to use loop: to reimplement the string functions. You may not use Python's built-in string methodas or operators to implement yours – for example, in, . upper (), .isUpper (), .strip (), .split (). You may use these Python functions: len (), ord (), str (). If you are not sure whether you can use a specific function or method, ask in Piazza.
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