Spell Checker Application

Version: 1.0.0 Author: Toby Cook

The function of this program is to read in a text (.txt) file and check if it contains any spelling mistakes. It does this by comparing each word from the file to a dictionary file stored in a Binary Search Tree. If there are any incorrect words, they will be displayed in the command window accompanied by the total count of incorrectly spelled words.

• Read contents of specified text file
• Split into individual words
• Compare each word to dictionary using Binary Search Tree methods
• If word is not in dictionary, print to console

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How to Build from Source

Toolchain Used

The application has been built using the Microsoft Visual C++ Build Tools 2017 including:

Microsoft (R) Program Maintenance Utility Version 14.12.25834.0
Microsoft (R) C/C++ Optimizing Compiler Version 19.12.25834 for x86
Microsoft (R) Incremental Linker Version 14.12.25834.0

A makefile has been provided with different options for creating the BinarySearchTree library, compiling the test file and compiling the spell check file. There are also options for running the spell check applications with different arguments.

Compiling the BinarySearchTree Library

This compiles the BinarySearchTree into a library to use with other files. This must be compiled first before other commands can be run.

C:\spellchecker> nmake create-lib

Compiling the Test File for the BinarySearchTree

The test file will check that the methods in the BinarySearchTree library work as supposed to. This command will link the test.obj and BinarySearchTree.lib

C:\spellchecker> nmake test-build

Compiling the Spellcheck File

This will compile the spellcheck.cpp file into an object file without generating an executable. It will link the spellcheck object file with the BinarySearchTree.lib we created above, cleaning the leftover object file afterwards.

C:\spellchecker> nmake spellcheck-build

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Running the Application

The makefile provided has a number of different tests that can be run on the application. This should simplify the test process and can also be run manually.

Run Spellcheck with No Input File

This is the most basic test as simply runs the spellcheck application with no text file as an argument.

C:\spellchecker> nmake spellcheck-none

Run Spellcheck with single_words_test.txt

Run the spellcheck application with the single_words_test.txt file as an argument.

C:\spellchecker> nmake spellcheck-single

Run Spellcheck with sentences_test.txt

Run the spellcheck application with the sentences_test.txt file as an argument.

C:\spellchecker> nmake spellcheck-sentence

Clean Up Junk Files

Clean up any unnecessary files creating during the build process.

C:\spellchecker> nmake clean

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Fully Automated Tests

The fully automated tests will create the BinarySearchTree library and link the files using one command.

BinarySearchTree Test

Create BinarySearchTree.lib and compile test application.

C:\spellchecker> nmake all-test-bst

Spellcheck Test with No Input File

Create BinarySearchTree.lib, compile spellcheck and run application with no input file.

C:\spellchecker> nmake all-test-none

Spellcheck Test with single_words_test.txt

Create BinarySearchTree.lib, compile spellcheck and run application with single_words_test.txt input file.

C:\spellchecker> nmake all-test-single

Spellcheck Test with sentences_test.txt

Create BinarySearchTree.lib, compile spellcheck and run application with sentences_test.txt input file.

C:\spellchecker> nmake all-test-sentence

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Manual Testing (Microsoft C++ Build Tools)

The files can be compiled manually for extra testing not outlined in the makefile.

Compiling the BinarySearchTree Library

First we must create the object file for the BinarySearchTree.

cl /c BinarySearchTree.cpp

Now we can output the library file by typing the following command:

lib /OUT:BinarySearchTree.lib BinarySearchTree.obj

Finally, we should clean up the object file that was created.

del BinarySearchTree.obj

Compile and Run Test Application

First we must create the object file for the test.cpp file.

cl /c test.cpp

Next we will manually link the test object file with our BinarySearchTree.lib

link test.obj BinarySearchTree.lib

and clean up the leftover test.obj file.

del test.obj

Then to run the file, simply type:

test

Compile and Run Spellcheck Application

First we must create the object file for the spellcheck.cpp file.

cl /c spellcheck.cpp

Next we will manually link the spellcheck object file with our BinarySearchTree.lib

link spellcheck.obj BinarySearchTree.lib

and clean up the leftover spellcheck.obj file.

del spellcheck.obj

Running the Spellcheck

The spellcheck application can take an input file as an argument, otherwise if no input file is provided, the user will be prompted for a file name.

Command	Description
-i filename	The name of the input text file to read from.

No Input File

spellcheck

single_words_test.txt File

spellcheck -i single_words_test.txt

sentences_test.txt File

spellcheck -i sentences_test.txt