Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Write a funciton in C / C + + that has the following signature: char * * parseCommandLine ( string aCommandLine ) This function takes

Write a funciton in C/C++ that has the following signature:
char ** parseCommandLine(string aCommandLine)
This function takes the input parameter and splits that string up into an array of component tokens that are
returned to the caller. As this is assumed to be a Linux command line (for example, from the terminal application),
you need to be able to handle certain special cases: (1) file redirection with the < and > characters, (2) file
redirection with the <<, and (3) the pipe is the only other character used as a seperator. character |. Otherwise,
you may assume that the any white-space character is a separator.
For example, the following is a valid command in the Bash shell:
1 grep x < myfile .textbfin > myfile . out
This would be parsed into four tokens: grep,x,myfile.in and myfile.out.
Your function needs to return a pointer to a dynamically allocated array of C-strings (remembering that a
double-pointer is C++ is another way to say that statement). The seemingly odd return type is required by some
of the system call code you will use in your first assignment.

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image_2

Step: 3

blur-text-image_3

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Securing SQL Server Protecting Your Database From Attackers

Authors: Denny Cherry

2nd Edition

1597499471, 978-1597499477

More Books

Students also viewed these Databases questions

Question

=+ (a) If A(An1) bA(1) for all / and if b Answered: 1 week ago

Answered: 1 week ago