<p>De-commenting is one of the primary tasks of the C preprocessor. This article demonstrates a simplified C program to remove comments from source-code.</p>
<h2 id="heading-dfa-design">DFA Design</h2>
<p>The deterministic finite state automaton (DFA) expresses the required de-commenting logic. The DFA is represented using the traditional "labeled ovals and labeled arrows" notation. Each oval represent a state. Each state is given short name with detailed descriptions of the left. Each arrow represent a transition from one state to another. Each arrow is labeled with the single character that causes the transition to occur.
<img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1638564602666/qG4WcoRaY.png" alt="DFA" /></p>
<h2 id="heading-usage">Usage</h2>
<pre><code class="lang-sh">$ ./decomment &lt;file_path&gt;
</code></pre>
<ul>
<li>If the program is run without  argument, the code to be decommented will be read from the standard input and displayed[decommented code] on the standard output</li>
<li>If  argument is given, the code to be decommented will be read form the file and displayed in the standard output.</li>
</ul>
<p>The full source-code for the project is on GitHub:</p>
<div class="embed-wrapper"><div class="embed-loading"><div class="loadingRow"></div><div class="loadingRow"></div></div><a class="embed-card" href="https://github.com/eyuelberga/decomment-program-c">https://github.com/eyuelberga/decomment-program-c</a></div>


De-commenting is one of the primary tasks of the C preprocessor. This article demonstrates a simplified C program to remove comments from source-code.

## DFA Design
The deterministic finite state automaton (DFA) expresses the required de-commenting logic. The DFA is represented using the traditional "labeled ovals and labeled arrows" notation. Each oval represent a state. Each state is given short name with detailed descriptions of the left. Each arrow represent a transition from one state to another. Each arrow is labeled with the single character that causes the transition to occur.
![DFA](https://cdn.hashnode.com/res/hashnode/image/upload/v1638564602666/qG4WcoRaY.png)

## Usage

```sh
$ ./decomment <file_path>
```

- If the program is run without <file_path> argument, the code to be decommented will be read from the standard input and displayed[decommented code] on the standard output
- If <file_path> argument is given, the code to be decommented will be read form the file and displayed in the standard output.

The full source-code for the project is on GitHub:

%[https://github.com/eyuelberga/decomment-program-c]




De-Comment Program in C

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