Expectations

Students will:

$$ Design the data structure and algorithms required to solve the problem of the application.

$$ Investigate:

o

o

o

$$ Test their solutions on a variety of folders.

Presentation$/$Examples

$1.$ Type fileusage

Prints the current directory and a recursively lists all files in the directory. So all files in the current directory and subfolders. The first column is the file type, the second column is the number of files of that type and the sum size of file for that type.

$2.$ fileusage $-$h

h option is the help option. This prints out how to use the fileusage utility

$3.$ Type fileusage c:$\backslash$usr

Prints a list of files from a given path

$4.$ Type fileusage $-$c $../../../..$

Goes back $4$ folders to list all the $.$c and $.$h files

$5.$ Type fileusage $-$c$+../../../..$

Goes back $4$ folders to list all the $.$c$,.$h$,.$cpp and $.$hpp files

$6.$ Only the cpp and hpp files

$7.$ fileusage $-+$cr $../..$

the $-$r option suppresses recursion and displays the current files in the folder

$8.$ fileusage $-$x $\backslash .($txt$|.$docx$)../..$

use regular expressions for searching. List files with the $.$txt or $.$docx extensions

$9.-$S is the sort options

$10.-$Sx

Sort files in ascending order

$11.-$RSx $$ Sort files in reverse order

$12.$ fileusage $-$sc$+$w

$-$s option $-$ Summarizes each group

$13.$ fileusage $-$sc$+$w $../..$

$14.$ fileusage $-$sc$+$wx $\backslash .($txt$|$docx$)../..$

$15.-$v option lists detailed report by extension. The reason v is used is for verbose. The definition for verbose is $$using or expressed in more words than are needed$$

Project Description

Create a C$++20$ Windows console application that lists file usage. Files will be counted, and their sizes totaled. Files will be grouped by file extension.

Program Interfaces

The program should have the following command$-$line interface:

fileusage $[-$switches$][--$help$][$folder$]$

Where:

$$ switches

o h $($display help$)$

o r $($reverse order of listing$)$

o s $($sort by size$)$

o x $($regex$)$

$--$help $($display help$)$

$$ folder is root directory.

The files should be listed in alphabetical order of the extension.

Switches

$$ h: shows the help usage for running the program

$$ r: list the files in reverse order.

$$ s: sort the files by ascending file size $($not extension name$)$ or descending if the r switch is also provided.

$$ x: limit the search to only the files that match the extensions specified by a regex expression

$($i$.$e$.$: $-$x $"\backslash .($docx$|$xlsx$)")$

Default

If there are no switches or folder specified, the program will run recursively, in the current directory showing files with all file types listed in alphabetical order by extension without the directory listing.

Functional Requirements

Passes #$1$: fileusage $--$help

Passes #$2$: fileusage $-$h

Passes #$3$: current folder, no args: no files or folders

Passes #$4$: current folder: single file, no subfolders

Passes #$5$: current folder: multiple file, no subfolders

Passes #$6$: current folder $-$r: multiple file, no subfolders

Passes #$7$: current folder $-$s: multiple files, no subfolders

Passes #$8$: current folder $-$sr: multiple files, no subfolders

Passes #$9$: current folder $-$x $"\backslash .($exe$|$html$)"$: multiple files, no subfolders

Passes #$10$: current folder: multiple files, one subfolder

Passes #$11$: current folder: multiple files, subfolders

Passes #$12$: current folder $-$sr: multiple files, subfolders

Passes #$13$: specified folder

Passes #$14$: specified folder with $-$sr

Survives: fileusage c:$\backslash$

Listings are right aligned columns