Please do not use replace or any other string method insert_substrings_into_string(s, substrs): This function takes a string s and a string substrs.The substrs string will contain 0 or more comma-separated substrings. The string s will containtext with 0 or more special placeholder character sequences. These placeholder character sequenceswill always begin with the percent character %, followed by one or more digits (which form a non-negative number). The function will create a new string from the original string s where all theplaceholder character sequences in s are replaced by the substrings in the string substrs. Theplaceholder %0 should be replaced by the first substring in substrs (i.e., everything before the firstcomma, if such a comma exists). The placeholder %1 should be replaced by the second substring insubstrs (i.e., everything between the first and second comma, if such a comma exists), and so on.The new string should then be returned.Note: If a placeholder sequence refers to an invalid index (e.g., %10 when there are only five sub-strings in substrs), then include the sequence (e.g., %10) as is in the new string.Note: The order of the placeholder sequences in s may not always be increasing. For instance, %2may appear before %1. Also, the same placeholder sequence could be repeated (e.g., %2 could appearat one point in s and again at a later point). Each instance of the same sequence would thus bereplaced by the same value.Note: If a space follows a comma in the string substrs, do not include the space as part of thesubstring to be included in the returned string.>>> insert_substrings_into_string("My favorite %0 is %1!!!", "programming language,Python")'My favorite programming language is Python!!!'>>> insert_substrings_into_string("Once upon a midnight %0, while I %1, %2 and %3", \"dreary, pondered, weak, weary")'Once upon a midnight dreary, while I pondered, weak and weary'>>> insert_substrings_into_string("Once upon a midnight %0, while I %1", "dreary")'Once upon a midnight dreary, while I %1'

def insert_substrings_into_string(s, substr): text = s strings = substr.split(", ") for i in…

• insert_substrings_into_string(s, substrs): This function takes a string s and a string substrs. The substrs string will contain 0 or more comma-separated substrings. The string s will contain text with 0 or more special placeholder character sequences. These placeholder character sequences will always begin with the percent character %, followed by one or more digits (which form a non- negative number). The function will create a new string from the original string s where all the placeholder character sequences in s are replaced by the substrings in the string substrs. The placeholder %0 should be replaced by the first substring in substrs (i.e., everything before the first comma, if such a comma exists). The placeholder 1 should be replaced by the second substring in substrs (i.e., everything between the first and second comma, if such a comma exists), and so on. The new string should then be returned.

• insert_substrings_into_string(s, substrs): This function takes a string s and a string substrs. The substrs string will contain 0 or more comma-separated substrings. The string s will contain text with 0 or more special placeholder character sequences. These placeholder character sequences will always begin with the percent character %, followed by one or more digits (which form a non- negative number). The function will create a new string from the original string s where all the placeholder character sequences in s are replaced by the substrings in the string substrs. The placeholder %0 should be replaced by the first substring in substrs (i.e., everything before the first comma, if such a comma exists). The placeholder 1 should be replaced by the second substring in substrs (i.e., everything between the first and second comma, if such a comma exists), and so on. The new string should then be returned.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Please do not use replace or any other string method

insert_substrings_into_string(s, substrs): This function takes a string s and a string substrs.
The substrs string will contain 0 or more comma-separated substrings. The string s will contain
text with 0 or more special placeholder character sequences. These placeholder character sequences
will always begin with the percent character %, followed by one or more digits (which form a non-
negative number). The function will create a new string from the original string s where all the
placeholder character sequences in s are replaced by the substrings in the string substrs. The
placeholder %0 should be replaced by the first substring in substrs (i.e., everything before the first
comma, if such a comma exists). The placeholder %1 should be replaced by the second substring in
substrs (i.e., everything between the first and second comma, if such a comma exists), and so on.
The new string should then be returned.
Note: If a placeholder sequence refers to an invalid index (e.g., %10 when there are only five sub-
strings in substrs), then include the sequence (e.g., %10) as is in the new string.
Note: The order of the placeholder sequences in s may not always be increasing. For instance, %2
may appear before %1. Also, the same placeholder sequence could be repeated (e.g., %2 could appear
at one point in s and again at a later point). Each instance of the same sequence would thus be
replaced by the same value.
Note: If a space follows a comma in the string substrs, do not include the space as part of the
substring to be included in the returned string.
>>> insert_substrings_into_string("My favorite %0 is %1!!!", "programming language,
Python")
'My favorite programming language is Python!!!'
>>> insert_substrings_into_string("Once upon a midnight %0, while I %1, %2 and %3", \
"dreary, pondered, weak, weary")
'Once upon a midnight dreary, while I pondered, weak and weary'
>>> insert_substrings_into_string("Once upon a midnight %0, while I %1", "dreary")
'Once upon a midnight dreary, while I %1'

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