Extracts all quoted text from a file, and generates a word count. Meant to be run by Node.

extract.js

/*
 * Extracts all text in double quotes from a given text file, as well as
 * coffeescript-style fenced quote blocks ("""). Outputs an approximate word
 * count for all of the content in quotations.
 *
 * Runs on Node.js, but doesn't require any npm modules.
 */

var START_QUOTE = /\ \"(.*)$/;
var END_QUOTE = /[^\\]\"(.*)$/;
var START_FENCED_QUOTE = /\"\"\"(.*)$/;
var END_FENCED_QUOTE = /^(.*)[^\\]\"\"\"(.*)$/;

var parseLine = function (line) {
	var matches;

	if (line === '') return [null, '', parseLine];

	matches = START_FENCED_QUOTE.exec(line);
	if (matches) return [null, matches[1], parseFencedQuote];

	matches = START_QUOTE.exec(line);
	if (matches) return [null, matches[1], parseQuote];

	return [null, '', parseLine];
};

var parseQuote = function (line) {
	var matches;

	if (line === '') return [null, '', parseQuote];

	matches = END_QUOTE.exec(line);
	if (matches) return [matches[1], matches[2], parseLine];

	return [line, '', parseQuote];
};

var parseFencedQuote = function (line) {
	var matches;

	if (line === '') return [null, '', parseFencedQuote];

	matches = END_FENCED_QUOTE.exec(line);
	if (matches) return [matches[1], matches[2], parseLine];

	return [line, '', parseFencedQuote];
};



var extract = function (lines) {
	var currentState = parseLine;
	var stack = [];
	var remainder, output, values;
	lines.forEach(function (line) {
		values = currentState(line);
		output = values[0];
		remainder = values[1];
		currentState = values[2];

		if (output) stack.push(output);
		while (remainder) {
			values = currentState(line);
			output = values[0];
			remainder = values[1];
			currentState = values[2];

			if (output) stack.push(output);
		}
	});

	return stack;	
};

fs = require('fs');

/* Edit this; relative path to the game file. */
var file = fs.readFileSync('game/main.coffee', 'utf8');

console.log(
	extract(file.split("\n"))
	.join(' ')
	.split(/\s/)
	.filter(function (item) {return item !== ''})
	.length);