Problem description

For this assignment, you will write a program that reads from one file, interprets what it reads and writes to a second file. The program will use a number of functions as listed below. This program will be a review of loops, menus, and function calls. It will also introduce the use of stringstream for writing to a string and ifstream and ofstream for reading and writing files

There is an example input file in Moodle: infile.txt. You will need to place that file onto your computer in the appropriate location for your program to read it. The exact location depends on which IDE you are using. For assistance, read the document Working Director or Where is my File?.

Provided file:

T & 4 S @ 6 T x 5 R * 5 7 D $ 7 D + 5 R = 4 3 E

Program Functionality

Your main function should have the following functionality:

-Open infile.txt for reading.

-Open outfile.txt for writing.

-Read the information on infile.txt, one line at a time, until the file is at EOF or an E is read.

1.Read a code and select the proper function for that code

2.Read the remaining input values, based on the function code

3.Call the appropriate function, passing in the input values

4. Save the returned string

5. Call writeShape, passing in the string and a reference to your ofstream object

Close both files.

Interpreting infile.txt

Each record (line) of infile.txt will have the following format.

code char value1 value2 (optional) except for any records starting with E

The code will be a single character from this list: D, R, S, T, E.

The char will also be a single character, this will be used to make the output shape

For the codes D, S, and T, there will be a single integer value that is the dimension

For the code R, there will be two integer values that are the dimensions

For the code E, there will be nothing to read after the E

Required Functions

At a minimum the program should have the following functions.

makeRectangle

three parameters, symbol, length, width

uses stringstream to create a rectangle shaped string of symbols

returns the string

makeSquare

two parameters, symbol and side

uses stringstream to create a square shaped string of symbols

returns the string

makeTriangle

two parameters, symbol and height

uses stringstream to create a triangle shaped string of symbols

returns the string

makeDiamond

two parameters, symbol and width

uses stringstream to create a diamond shaped string of symbols

returns the string

writeShape

two parameters, a shapeString and a reference parameter outfile

writes the shapeString to outfile

no return values

The program will need a reading loop that is terminated with end of file or the code E, some way to determine which code was entered, and a function to draw each shape. The function will need to have as parameters the character to use to draw the shape, and the dimension(s) of the shape.

You should check for an improper input file. That is, if you get an EOF when trying to read something, you should exit the program with an error message.

Codes and Functions

The codes and their meanings are as follows:

End

If the code is an E, you are to end the program.

Diamond

If the code is a D, you are to create a diamond of the char. Diamonds should always have an odd number for their dimension. For example, for the following input line.

D ! 3

You should generate a diamond that looks like this.

!

!!!

!

For the intput line

D * 5

You should create a diamond that looks like this.

*

***

*****

***

*

If you happen to get a diamond with an even dimension, increase it by one.

Square

If the code is an S, you are to create a square of the char. For example, with the following input line

S ! 3

You should generate a square that looks like this:

!!!

!!!

!!!

For the line

S @ 5

You should generate a square that looks like

@@@@@

@@@@@

@@@@@

@@@@@

@@@@@

Triangle

If the code is a T, you are to create a triangle of the char. For example, with the line

T = 3

You should generate a triangle that looks like

=

==

===

For the line

T ^ 5

You should generate a triangle that looks like

^

^^

^^^

^^^^

^^^^^

Rectangle

If the code is an R, you are to create a rectangle of the char. Rectangles have two values: rows

and columns. For example, with the line

R a 2 4

You should generate a rectangle that looks like

aaaa

aaaa

For the line

R & 6 3

You should generate a rectangle that looks like

&&&&&&

&&&&&&

&&&&&&

C++