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Property	Old Value	New Value
File Mode	null	100755

				#!/usr/bin/env php
				<?php

				require_once dirname(__FILE__).'/../__init_script__.php';

				$args = new PhutilArgumentParser($argv);
				$args->setTagline(pht('show prose differences'));
				$args->setSynopsis(<<<EOHELP
				prosediff.php __old__ __new__ [__options__]
				Diff two prose files.

				EOHELP
				);

				$args->parseStandardArguments();
				$args->parse(
				array(
				array(
				'name' => 'files',
				'wildcard' => true,
				),
				));

				$files = $args->getArg('files');
				if (count($files) !== 2) {
				$args->printHelpAndExit();
				}
				$old_file = head($files);
				$new_file = last($files);

				$old_data = Filesystem::readFile($old_file);
				$new_data = Filesystem::readFile($new_file);

				$engine = new PhutilProseDifferenceEngine();

				$prose_diff = $engine->getDiff($old_data, $new_data);

				foreach ($prose_diff->getParts() as $part) {
				switch ($part['type']) {
				case '-':
				echo tsprintf('<bg:red>%B</bg>', $part['text']);
				break;
				case '+':
				echo tsprintf('<bg:green>%B</bg>', $part['text']);
				break;
				case '=':
				echo tsprintf('%B', $part['text']);
				break;
				}
				}