CustomWC

A Simple wc clone for codingchallenges.fyi (https://codingchallenges.fyi/challenges/challenge-wc)

This is a custom implementation of the classic word count utility in Go. It counts bytes, lines, and words in an input file.

Features

• Counts the number of bytes, lines and words in a file
• Supports stdin as input if no file is specified
• Custom Processor interface allows adding new metrics easily
• Clean separation of file reading and metric counting logic

Usage

customwc [flags] [filename]

Flags

• -c : Count bytes
• -l : Count lines
• -w : Count words If no flags are specified, all metrics are counted.

Examples

Count words only in file:

customwc -w file.txt

Count all metrics from stdin:

cat file.txt | customwc

Processors The Processor interface defines the metric counting API:

type Processor interface {
  process(line []byte, isPrefix bool) 
  getValue() int
}

The following processors are implemented:

ByteCountProcessor - Counts total bytes LineCountProcessor - Counts total lines WordCountProcessor - Counts total words Adding a new processor just requires implementing the Processor interface.