CCWC (Custom Word Count)

A Go implementation of the Unix/Linux wc command that counts bytes, lines, words, and characters in text files.

Features

• Count bytes in a file (-c)
• Count lines in a file (-l)
• Count words in a file (-w)
• Count characters in a file (-m)
• Support for reading from both files and standard input (stdin)
• Default mode that displays line, word, and byte counts together

Installation

1. Ensure you have Go installed on your system
2. Navigate to the project directory:

cd /Users/rokib/Developer/go_projects/bgce-archive/mini-projects/ccwc

3. Build the project:

go build -o ccwc ./cmd/ccwc

Usage

Basic Usage

./ccwc [options] [filename]

If no filename is provided, ccwc reads from standard input.

Options

• -c: Print the byte count
• -l: Print the line count
• -w: Print the word count
• -m: Print the character count (locale-dependent)

If no options are provided, ccwc displays line count, word count, and byte count.

Examples

1. Count bytes in a file:

./ccwc -c testdata/test.txt

2. Count lines in a file:

./ccwc -l testdata/test.txt

3. Count words in a file:

./ccwc -w testdata/test.txt

4. Count characters in a file:

./ccwc -m testdata/test.txt

5. Default output (lines, words, and bytes):

./ccwc testdata/test.txt

6. Read from standard input:

cat testdata/test.txt | ./ccwc -m

Project Structure

mini-projects/ccwc/
├── cmd/
│   └── ccwc/
│       └── main.go       # Main application entry point
├── internal/
│   └── processor/
│       └── processor.go  # Core processing functions
├── testdata/            # Test files directory
│   └── test.txt
├── go.mod               # Go module file
└── README.md           # This file

Implementation Details

The project is organized into two main components:

1. Processor Package (internal/processor/processor.go):

   • Contains core counting functions
   • Implements byte, line, word, and character counting logic
   • Uses efficient buffered I/O operations

2. Main Package (cmd/ccwc/main.go):

   • Handles command-line argument parsing
   • Manages file operations
   • Coordinates counting operations
   • Formats and displays output

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.