See https://codingchallenges.fyi/challenges/challenge-wc

This has been implemented in php - as vanilla as I can stand!

Initially, this was implemented as a procedural single-file solution, then re-implemented using OOP.

Both versions are included in this repository:

• Procedural version: ccwc.php
• OOP version: ccwc

strict_mode is enabled throughout.

• PHP >= 8.1
• composer

$ git clone https://github.com/mattgorle/cc_php_001_wc
$ cd cc_php_001_wc
$ composer install

$ vendor/bin/phpunit

As of now, this supports the following modes:

1. -c: Character count
2. -m: Multi-byte character count
3. -l: Line count
4. -w: Word count

Input can by given by way of filenames on the CLI or via STDIN.

One or more file names can be provided as an input argument. Shell expansion works as expected.

$ ./ccwc file
$ ./ccwc file1 file2
$ ./ccwc *

This can be either via a pipe or redirector.

$ cat file | ./ccwc
$ ./ccwc < file

Unsurprisingly, this is roughly an order of magnitude slower than GNU coreutils.

When processing the test document, the timings are as follows:

Roughly 9x slower

The OOP rewrite is ~10% slower than the procedural version when processing the 335KB test file.

However, it is 20-30% faster when processing a 33MB test file.

• No automated test coverage
• Easier to understand the code at a glance
• No large file support (limited to roughly system RAM / 4)
• Output is less authentic when compared to coreutils wc
• Faster than OOP on smaller files, slower on larger files
• Reads the entire file into memory for processing
• Uses no third-party libraries

• Good level of automated test coverage
• Supports files of potentially any size (files are loaded in 16MB pages)
• Output closely matches coreutils wc
• Delegates CLI argument parsing to vanilla/garden-cli