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/** |
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* @author Kate Compton |
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*/ |
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|
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var tracery = { |
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utilities : {} |
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}; |
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|
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(function() { |
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function inQuotes(s) { |
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return '"' + s + '"'; |
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}; |
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function parseAction(action) { |
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return action; |
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}; |
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|
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// tag format |
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// a thing to expand, plus actions |
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function parseTag(tag) { |
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var errors = []; |
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var prefxns = []; |
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var postfxns = []; |
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var lvl = 0; |
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var start = 0; |
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var inPre = true; |
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var symbol, |
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mods; |
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function nonAction(end) { |
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if (start !== end) { |
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var section = tag.substring(start, end); |
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if (!inPre) { |
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errors.push("multiple possible expansion symbols in tag!" + tag); |
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} else { |
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inPre = false; |
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var split = section.split("."); |
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symbol = split[0]; |
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mods = split.slice(1, split.length); |
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} |
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} |
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start = end; |
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}; |
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for (var i = 0; i < tag.length; i++) { |
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var c = tag.charAt(i); |
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switch(c) { |
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case '[': |
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if (lvl === 0) { |
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nonAction(i); |
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} |
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lvl++; |
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break; |
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case ']': |
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lvl--; |
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if (lvl === 0) { |
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var section = tag.substring(start + 1, i); |
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if (inPre) |
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prefxns.push(parseAction(section)); |
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else |
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postfxns.push(parseAction(section)); |
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start = i + 1; |
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} |
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break; |
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default: |
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if (lvl === 0) { |
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} |
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break; |
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} |
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} |
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nonAction(i); |
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if (lvl > 0) { |
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var error = "Too many '[' in rule " + inQuotes(tag); |
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errors.push(error); |
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} |
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if (lvl < 0) { |
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var error = "Too many ']' in rule " + inQuotes(tag); |
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errors.push(error); |
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} |
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return { |
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preActions : prefxns, |
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postActions : postfxns, |
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symbol : symbol, |
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mods : mods, |
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raw : tag, |
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errors : errors, |
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}; |
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}; |
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// Split a rule into sections |
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function parseRule(rule) { |
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var sections = []; |
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var errors = []; |
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if (!( typeof rule == 'string' || rule instanceof String)) { |
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errors.push("Cannot parse non-string rule " + rule); |
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sections.errors = errors; |
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return sections; |
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} |
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if (rule.length === 0) { |
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return []; |
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} |
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var lvl = 0; |
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var start = 0; |
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var inTag = false; |
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function createSection(end) { |
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var section = rule.substring(start, end); |
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if (section.length > 0) { |
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if (inTag) |
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sections.push(parseTag(section)); |
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else |
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sections.push(section); |
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} |
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inTag = !inTag; |
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start = end + 1; |
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} |
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for (var i = 0; i < rule.length; i++) { |
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var c = rule.charAt(i); |
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switch(c) { |
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case '[': |
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lvl++; |
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break; |
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case ']': |
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lvl--; |
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break; |
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case '#': |
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if (lvl === 0) { |
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createSection(i); |
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} |
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break; |
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default: |
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break; |
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} |
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} |
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if (lvl > 0) { |
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var error = "Too many '[' in rule " + inQuotes(rule); |
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errors.push(error); |
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} |
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if (lvl < 0) { |
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var error = "Too many ']' in rule " + inQuotes(rule); |
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errors.push(error); |
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} |
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if (inTag) { |
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var error = "Odd number of '#' in rule " + inQuotes(rule); |
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errors.push(error); |
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} |
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createSection(rule.length); |
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sections.errors = errors; |
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return sections; |
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}; |
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function testParse(rule, shouldFail) { |
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console.log("-------"); |
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console.log("Test parse rule: " + inQuotes(rule) + " " + shouldFail); |
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var parsed = parseRule(rule); |
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if (parsed.errors && parsed.errors.length > 0) { |
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for (var i = 0; i < parsed.errors.length; i++) { |
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console.log(parsed.errors[i]); |
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} |
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} |
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} |
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function testParseTag(tag, shouldFail) { |
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console.log("-------"); |
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console.log("Test parse tag: " + inQuotes(tag) + " " + shouldFail); |
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var parsed = parseTag(tag); |
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if (parsed.errors && parsed.errors.length > 0) { |
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for (var i = 0; i < parsed.errors.length; i++) { |
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console.log(parsed.errors[i]); |
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} |
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} |
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} |
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tracery.testParse = testParse; |
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tracery.testParseTag = testParseTag; |
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tracery.parseRule = parseRule; |
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tracery.parseTag = parseTag; |
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function spacer(size) { |
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var s = ""; |
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for (var i = 0; i < size * 3; i++) { |
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s += " "; |
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} |
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return s; |
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} |
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/* Simple JavaScript Inheritance |
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* By John Resig http://ejohn.org/ |
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* MIT Licensed. |
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*/ |
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function extend(destination, source) { |
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for (var k in source) { |
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if (source.hasOwnProperty(k)) { |
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destination[k] = source[k]; |
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} |
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} |
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return destination; |
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} |
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// Inspired by base2 and Prototype |
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(function() { |
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var initializing = false, |
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fnTest = /xyz/.test(function() { xyz; |
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}) ? /\b_super\b/ : /.*/; |
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// The base Class implementation (does nothing) |
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this.Class = function() { |
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}; |
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// Create a new Class that inherits from this class |
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Class.extend = function(prop) { |
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var _super = this.prototype; |
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// Instantiate a base class (but only create the instance, |
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// don't run the init constructor) |
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initializing = true; |
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var prototype = new this(); |
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initializing = false; |
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// Copy the properties over onto the new prototype |
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for (var name in prop) { |
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// Check if we're overwriting an existing function |
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prototype[name] = typeof prop[name] == "function" && typeof _super[name] == "function" && fnTest.test(prop[name]) ? (function(name, fn) { |
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return function() { |
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var tmp = this._super; |
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// Add a new ._super() method that is the same method |
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// but on the super-class |
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this._super = _super[name]; |
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// The method only need to be bound temporarily, so we |
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// remove it when we're done executing |
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var ret = fn.apply(this, arguments); |
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this._super = tmp; |
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return ret; |
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}; |
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})(name, prop[name]) : prop[name]; |
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} |
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// The dummy class constructor |
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function Class() { |
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// All construction is actually done in the init method |
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if (!initializing && this.init) |
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this.init.apply(this, arguments); |
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} |
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// Populate our constructed prototype object |
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Class.prototype = prototype; |
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// Enforce the constructor to be what we expect |
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Class.prototype.constructor = Class; |
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// And make this class extendable |
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Class.extend = arguments.callee; |
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return Class; |
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}; |
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})(); |
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/** |
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* @author Kate |
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*/ |
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var Rule = function(raw) { |
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this.raw = raw; |
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this.sections = parseRule(raw); |
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}; |
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Rule.prototype.getParsed = function() { |
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if (!this.sections) |
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this.sections = parseRule(raw); |
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return this.sections; |
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}; |
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Rule.prototype.toString = function() { |
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return this.raw; |
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}; |
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Rule.prototype.toJSONString = function() { |
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return this.raw; |
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}; |
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/** |
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* @author Kate |
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*/ |
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var RuleWeighting = Object.freeze({ |
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RED : 0, |
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GREEN : 1, |
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BLUE : 2 |
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}); |
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var RuleSet = function(rules) { |
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// is the rules obj an array? A RuleSet, or a string? |
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if (rules.constructor === Array) { |
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// make a copy |
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rules = rules.slice(0, rules.length); |
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} else if (rules.prototype === RuleSet) { |
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// clone |
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} else if ( typeof rules == 'string' || rules instanceof String) { |
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var args = Array.prototype.slice.call(arguments); |
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rules = args; |
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} else { |
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console.log(rules); |
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throw ("creating ruleset with unknown object type!"); |
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} |
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// create rules and their use counts |
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this.rules = rules; |
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this.parseAll(); |
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this.uses = []; |
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this.startUses = []; |
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this.totalUses = 0; |
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for (var i = 0; i < this.rules.length; i++) { |
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this.uses[i] = 0; |
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this.startUses[i] = this.uses[i]; |
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this.totalUses += this.uses[i]; |
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} |
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}; |
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//======================================================== |
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// Iterating over rules |
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RuleSet.prototype.parseAll = function(fxn) { |
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for (var i = 0; i < this.rules.length; i++) { |
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if (this.rules[i].prototype !== Rule) |
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this.rules[i] = new Rule(this.rules[i]); |
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} |
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}; |
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//======================================================== |
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// Iterating over rules |
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RuleSet.prototype.mapRules = function(fxn) { |
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return this.rules.map(function(rule, index) { |
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return fxn(rule, index); |
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}); |
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}; |
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RuleSet.prototype.applyToRules = function(fxn) { |
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for (var i = 0; i < this.rules.length; i++) { |
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fxn(this.rules[i], i); |
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} |
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}; |
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//======================================================== |
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RuleSet.prototype.get = function() { |
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var index = this.getIndex(); |
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return this.rules[index]; |
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}; |
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RuleSet.prototype.getRandomIndex = function() { |
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return Math.floor(this.uses.length * Math.random()); |
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}; |
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RuleSet.prototype.getIndex = function() { |
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// Weighted distribution |
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// Imagine a bar of length 1, how to divide the length |
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// s.t. a random dist will result in the dist we want? |
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var index = this.getRandomIndex(); |
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// What if the uses determine the chance of rerolling? |
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var median = this.totalUses / this.uses.length; |
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var count = 0; |
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while (this.uses[index] > median && count < 20) { |
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index = this.getRandomIndex(); |
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count++; |
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} |
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// reroll more likely if index is too much higher |
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return index; |
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}; |
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RuleSet.prototype.decayUses = function(pct) { |
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this.totalUses = 0; |
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for (var i = 0; i < this.uses; i++) { |
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this.uses[index] *= 1 - pct; |
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this.totalUses += this.uses[index]; |
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} |
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}; |
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RuleSet.prototype.testRandom = function() { |
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console.log("Test random"); |
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var counts = []; |
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for (var i = 0; i < this.uses.length; i++) { |
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counts[i] = 0; |
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} |
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var testCount = 10 * this.uses.length; |
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for (var i = 0; i < testCount; i++) { |
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var index = this.getIndex(); |
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this.uses[index] += 1; |
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counts[index]++; |
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this.decayUses(.1); |
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} |
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for (var i = 0; i < this.uses.length; i++) { |
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console.log(i + ":\t" + counts[i] + " \t" + this.uses[i]); |
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} |
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}; |
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RuleSet.prototype.getSaveRules = function() { |
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var jsonRules = this.rules.map(function(rule) { |
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return rule.toJSONString(); |
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}); |
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return jsonRules; |
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}; |
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/** |
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* @author Kate Compton |
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*/ |
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var Action = function(node, raw) { |
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this.node = node; |
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this.grammar = node.grammar; |
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this.raw = raw; |
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}; |
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Action.prototype.activate = function() { |
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var node = this.node; |
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node.actions.push(this); |
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|
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// replace any hashtags |
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this.amended = this.grammar.flatten(this.raw); |
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var parsed = parseTag(this.amended); |
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var subActionRaw = parsed.preActions; |
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if (subActionRaw && subActionRaw.length > 0) { |
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this.subactions = subActionRaw.map(function(action) { |
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return new Action(node, action); |
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}); |
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} |
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if (parsed.symbol) { |
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var split = parsed.symbol.split(":"); |
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if (split.length === 2) { |
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this.push = { |
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symbol : split[0], |
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|
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// split into multiple rules |
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rules : split[1].split(","), |
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}; |
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// push |
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node.grammar.pushRules(this.push.symbol, this.push.rules); |
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} else |
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throw ("Unknown action: " + parsed.symbol); |
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} |
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if (this.subactions) { |
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for (var i = 0; i < this.subactions.length; i++) { |
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this.subactions[i].activate(); |
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} |
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} |
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}; |
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Action.prototype.deactivate = function() { |
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if (this.subactions) { |
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for (var i = 0; i < this.subactions.length; i++) { |
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this.subactions[i].deactivate(); |
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} |
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} |
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|
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if (this.push) { |
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this.node.grammar.popRules(this.push.symbol, this.push.rules); |
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} |
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}; |
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/** |
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* @author Kate Compton |
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*/ |
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var isConsonant = function(c) { |
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c = c.toLowerCase(); |
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switch(c) { |
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case 'a': |
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return false; |
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case 'e': |
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return false; |
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case 'i': |
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return false; |
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case 'o': |
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return false; |
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case 'u': |
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return false; |
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} |
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return true; |
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}; |
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function endsWithConY(s) { |
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if (s.charAt(s.length - 1) === 'y') { |
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return isConsonant(s.charAt(s.length - 2)); |
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} |
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return false; |
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}; |
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var universalModifiers = { |
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capitalizeAll : function(s) { |
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return s.replace(/(?:^|\s)\S/g, function(a) { |
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return a.toUpperCase(); |
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}); |
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}, |
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capitalize : function(s) { |
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return s.charAt(0).toUpperCase() + s.slice(1); |
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}, |
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inQuotes : function(s) { |
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return '"' + s + '"'; |
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}, |
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comma : function(s) { |
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var last = s.charAt(s.length - 1); |
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if (last === ",") |
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return s; |
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if (last === ".") |
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return s; |
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if (last === "?") |
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return s; |
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if (last === "!") |
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return s; |
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return s + ","; |
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}, |
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beeSpeak : function(s) { |
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// s = s.replace("s", "zzz"); |
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|
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s = s.replace(/s/, 'zzz'); |
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return s; |
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}, |
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|
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a : function(s) { |
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if (!isConsonant(s.charAt())) |
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return "an " + s; |
|
return "a " + s; |
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|
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}, |
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|
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s : function(s) { |
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|
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var last = s.charAt(s.length - 1); |
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|
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switch(last) { |
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case 'y': |
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|
|
// rays, convoys |
|
if (!isConsonant(s.charAt(s.length - 2))) { |
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return s + "s"; |
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} |
|
// harpies, cries |
|
else { |
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return s.slice(0, s.length - 1) + "ies"; |
|
} |
|
break; |
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|
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// oxen, boxen, foxen |
|
case 'x': |
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return s.slice(0, s.length - 1) + "xen"; |
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case 'z': |
|
return s.slice(0, s.length - 1) + "zes"; |
|
case 'h': |
|
return s.slice(0, s.length - 1) + "hes"; |
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|
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default: |
|
return s + "s"; |
|
}; |
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|
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}, |
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|
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ed : function(s) { |
|
|
|
var index = s.indexOf(" "); |
|
var s = s; |
|
var rest = ""; |
|
if (index > 0) { |
|
rest = s.substring(index, s.length); |
|
s = s.substring(0, index); |
|
|
|
} |
|
|
|
var last = s.charAt(s.length - 1); |
|
|
|
switch(last) { |
|
case 'y': |
|
|
|
// rays, convoys |
|
if (isConsonant(s.charAt(s.length - 2))) { |
|
return s.slice(0, s.length - 1) + "ied" + rest; |
|
|
|
} |
|
// harpies, cries |
|
else { |
|
return s + "ed" + rest; |
|
} |
|
break; |
|
case 'e': |
|
return s + "d" + rest; |
|
|
|
break; |
|
|
|
default: |
|
return s + "ed" + rest; |
|
}; |
|
} |
|
}; |
|
/** |
|
* @author Kate Compton |
|
*/ |
|
|
|
// A tracery expansion node |
|
var nodeCount = 0; |
|
|
|
var ExpansionNode = Class.extend({ |
|
init : function() { |
|
this.depth = 0; |
|
this.id = nodeCount; |
|
nodeCount++; |
|
this.childText = "[[UNEXPANDED]]"; |
|
}, |
|
|
|
setParent : function(parent) { |
|
if (parent) { |
|
this.depth = parent.depth + 1; |
|
this.parent = parent; |
|
this.grammar = parent.grammar; |
|
} |
|
}, |
|
|
|
expand : function() { |
|
// do nothing |
|
return "???"; |
|
}, |
|
|
|
expandChildren : function() { |
|
|
|
if (this.children) { |
|
this.childText = ""; |
|
for (var i = 0; i < this.children.length; i++) { |
|
this.children[i].expand(); |
|
this.childText += this.children[i].finalText; |
|
} |
|
this.finalText = this.childText; |
|
} |
|
|
|
}, |
|
|
|
createChildrenFromSections : function(sections) { |
|
var root = this; |
|
this.children = sections.map(function(section) { |
|
|
|
if ( typeof section == 'string' || section instanceof String) { |
|
// Plaintext |
|
return new TextNode(root, section); |
|
} else { |
|
return new TagNode(root, section); |
|
} |
|
}); |
|
} |
|
}); |
|
|
|
var RootNode = ExpansionNode.extend({ |
|
init : function(grammar, rawRule) { |
|
this._super(); |
|
this.grammar = grammar; |
|
this.parsedRule = parseRule(rawRule); |
|
}, |
|
|
|
expand : function() { |
|
var root = this; |
|
this.createChildrenFromSections(this.parsedRule); |
|
|
|
// expand the children |
|
this.expandChildren(); |
|
}, |
|
}); |
|
|
|
function simpleExtend(a, b){ |
|
for(var key in b) |
|
if(b.hasOwnProperty(key)) |
|
a[key] = b[key]; |
|
return a; |
|
} |
|
|
|
var TagNode = ExpansionNode.extend({ |
|
init : function(parent, parsedTag) { |
|
this._super(); |
|
|
|
if (!(parsedTag !== null && typeof parsedTag === 'object')) { |
|
if ( typeof parsedTag == 'string' || parsedTag instanceof String) { |
|
console.warn("Can't make tagNode from unparsed string!"); |
|
parsedTag = parseTag(parsedTag); |
|
|
|
} else { |
|
console.log("Unknown tagNode input: ", parsedTag); |
|
throw ("Can't make tagNode from strange tag!"); |
|
|
|
} |
|
} |
|
|
|
this.setParent(parent); |
|
// NOTE: removed jquery dependency here |
|
// $.extend(this, parsedTag); |
|
simpleExtend(this, parsedTag); |
|
}, |
|
|
|
expand : function() { |
|
if (tracery.outputExpansionTrace) |
|
console.log(r.sections); |
|
|
|
this.rule = this.grammar.getRule(this.symbol); |
|
|
|
this.actions = []; |
|
|
|
// Parse the rule if it hasn't been already |
|
this.createChildrenFromSections(this.rule.getParsed()); |
|
|
|
// Do any pre-expansion actions! |
|
for (var i = 0; i < this.preActions.length; i++) { |
|
var action = new Action(this, this.preActions[i]); |
|
action.activate(); |
|
} |
|
|
|
// Map each child section to a node |
|
if (!this.rule.sections) |
|
console.log(this.rule); |
|
|
|
this.expandChildren(); |
|
|
|
for (var i = 0; i < this.actions.length; i++) { |
|
|
|
this.actions[i].deactivate(); |
|
} |
|
|
|
this.finalText = this.childText; |
|
for (var i = 0; i < this.mods.length; i++) { |
|
this.finalText = this.grammar.applyMod(this.mods[i], this.finalText); |
|
} |
|
|
|
}, |
|
|
|
toLabel : function() { |
|
return this.symbol; |
|
}, |
|
toString : function() { |
|
return "TagNode '" + this.symbol + "' mods:" + this.mods + ", preactions:" + this.preActions + ", postactions" + this.postActions; |
|
} |
|
}); |
|
|
|
var TextNode = ExpansionNode.extend({ |
|
isLeaf : true, |
|
init : function(parent, text) { |
|
this._super(); |
|
|
|
this.setParent(parent); |
|
|
|
this.text = text; |
|
|
|
this.finalText = text; |
|
}, |
|
expand : function() { |
|
// do nothing |
|
}, |
|
|
|
toLabel : function() { |
|
return this.text; |
|
} |
|
}); |
|
|
|
/** |
|
* @author Kate Compton |
|
*/ |
|
|
|
function Symbol(grammar, key) { |
|
this.grammar = grammar; |
|
this.key = key; |
|
this.currentRules = undefined; |
|
this.ruleSets = []; |
|
|
|
}; |
|
|
|
Symbol.prototype.loadFrom = function(rules) { |
|
|
|
rules = this.wrapRules(rules); |
|
this.baseRules = rules; |
|
|
|
this.ruleSets.push(rules); |
|
this.currentRules = this.ruleSets[this.ruleSets.length - 1]; |
|
|
|
}; |
|
|
|
//======================================================== |
|
// Iterating over rules |
|
|
|
Symbol.prototype.mapRules = function(fxn) { |
|
|
|
return this.currentRules.mapRules(fxn); |
|
}; |
|
|
|
Symbol.prototype.applyToRules = function(fxn) { |
|
this.currentRules.applyToRules(fxn); |
|
}; |
|
|
|
//================================================== |
|
// Rule pushpops |
|
Symbol.prototype.wrapRules = function(rules) { |
|
if (rules.prototype !== RuleSet) { |
|
if (Array.isArray(rules)) { |
|
return new RuleSet(rules); |
|
} else if ( typeof rules == 'string' || rules instanceof String) { |
|
return new RuleSet(rules); |
|
} else { |
|
throw ("Unknown rules type: " + rules); |
|
} |
|
} |
|
// already a ruleset |
|
return rules; |
|
}; |
|
|
|
Symbol.prototype.pushRules = function(rules) { |
|
rules = this.wrapRules(rules); |
|
this.ruleSets.push(rules); |
|
this.currentRules = this.ruleSets[this.ruleSets.length - 1]; |
|
}; |
|
|
|
Symbol.prototype.popRules = function() { |
|
var exRules = this.ruleSets.pop(); |
|
|
|
if (this.ruleSets.length === 0) { |
|
//console.warn("No more rules for " + this + "!"); |
|
} |
|
this.currentRules = this.ruleSets[this.ruleSets.length - 1]; |
|
}; |
|
|
|
// Clear everything and set the rules |
|
Symbol.prototype.setRules = function(rules) { |
|
|
|
rules = this.wrapRules(rules); |
|
this.ruleSets = [rules]; |
|
this.currentRules = rules; |
|
|
|
}; |
|
|
|
Symbol.prototype.addRule = function(rule) { |
|
this.currentRules.addRule(seed); |
|
}; |
|
|
|
//======================================================== |
|
// selection |
|
|
|
Symbol.prototype.select = function() { |
|
this.isSelected = true; |
|
|
|
}; |
|
|
|
Symbol.prototype.deselect = function() { |
|
this.isSelected = false; |
|
}; |
|
|
|
//================================================== |
|
// Getters |
|
|
|
Symbol.prototype.getRule = function(seed) { |
|
return this.currentRules.get(seed); |
|
}; |
|
|
|
//================================================== |
|
|
|
Symbol.prototype.toString = function() { |
|
return this.key + ": " + this.currentRules + "(overlaying " + (this.ruleSets.length - 1) + ")"; |
|
}; |
|
Symbol.prototype.toJSON = function() { |
|
|
|
var rules = this.baseRules.rules.map(function(rule) { |
|
return '"' + rule.raw + '"'; |
|
}); |
|
return '"' + this.key + '"' + ": [" + rules.join(", ") + "]"; |
|
}; |
|
|
|
Symbol.prototype.toHTML = function(useSpans) { |
|
var keySpan = '"' + this.key + '"'; |
|
if (useSpans) |
|
keySpan = "<span class='symbol symbol_" + this.key + "'>" + keySpan + "</span>"; |
|
|
|
var rules = this.baseRules.rules.map(function(rule) { |
|
// replace any anglebrackets for html |
|
var cleaned = rule.raw.replace(/&/g, "&"); |
|
cleaned = cleaned.replace(/>/g, ">"); |
|
cleaned = cleaned.replace(/</g, "<"); |
|
|
|
var s = '"' + cleaned + '"'; |
|
if (useSpans) |
|
s = "<span class='rule'>" + s + "</span>"; |
|
return s; |
|
}); |
|
return keySpan + ": [" + rules.join(", ") + "]"; |
|
}; |
|
|
|
/** |
|
* @author Kate Compton |
|
*/ |
|
|
|
function Grammar() { |
|
this.clear(); |
|
}; |
|
|
|
Grammar.prototype.clear = function() { |
|
// Symbol library |
|
this.symbols = {}; |
|
|
|
this.errors = []; |
|
|
|
// Modifier library |
|
this.modifiers = {}; |
|
|
|
// add the universal mods |
|
for (var mod in universalModifiers) { |
|
if (universalModifiers.hasOwnProperty(mod)) |
|
this.modifiers[mod] = universalModifiers[mod]; |
|
} |
|
}; |
|
//======================================================== |
|
// Loading |
|
|
|
Grammar.prototype.loadFrom = function(obj) { |
|
var symbolSrc; |
|
|
|
this.clear(); |
|
|
|
if (obj.symbols !== undefined) { |
|
symbolSrc = obj.symbols; |
|
} else { |
|
symbolSrc = obj; |
|
} |
|
|
|
// get all json keys |
|
var keys = Object.keys(symbolSrc); |
|
|
|
this.symbolNames = []; |
|
for (var i = 0; i < keys.length; i++) { |
|
var key = keys[i]; |
|
this.symbolNames.push(key); |
|
|
|
this.symbols[key] = new Symbol(this, key); |
|
this.symbols[key].loadFrom(symbolSrc[key]); |
|
} |
|
|
|
}; |
|
|
|
Grammar.prototype.toHTML = function(useSpans) { |
|
// get all json keys |
|
var keys = Object.keys(this.symbols); |
|
|
|
this.symbolNames = []; |
|
|
|
var lines = []; |
|
|
|
var count = 0; |
|
for (var i = 0; i < keys.length; i++) { |
|
|
|
var key = keys[i]; |
|
var symbol = this.symbols[key]; |
|
|
|
if (symbol && symbol.baseRules) { |
|
|
|
lines.push(" " + this.symbols[key].toHTML(useSpans)); |
|
|
|
} |
|
}; |
|
|
|
var s; |
|
s = lines.join(",</p><p>"); |
|
s = "{<p>" + s + "</p>}"; |
|
return s; |
|
}; |
|
|
|
Grammar.prototype.toJSON = function() { |
|
// get all json keys |
|
var keys = Object.keys(this.symbols); |
|
|
|
this.symbolNames = []; |
|
|
|
var lines = []; |
|
|
|
var count = 0; |
|
for (var i = 0; i < keys.length; i++) { |
|
|
|
var key = keys[i]; |
|
var symbol = this.symbols[key]; |
|
|
|
if (symbol && symbol.baseRules) { |
|
|
|
lines.push(" " + this.symbols[key].toJSON()); |
|
|
|
} |
|
}; |
|
|
|
var s; |
|
s = lines.join(",\n"); |
|
s = "{\n" + s + "\n}"; |
|
return s; |
|
}; |
|
|
|
//======================================================== |
|
// selection |
|
|
|
Grammar.prototype.select = function() { |
|
this.isSelected = true; |
|
}; |
|
|
|
Grammar.prototype.deselect = function() { |
|
this.isSelected = false; |
|
}; |
|
|
|
//======================================================== |
|
// Iterating over symbols |
|
|
|
Grammar.prototype.mapSymbols = function(fxn) { |
|
var symbols = this.symbols; |
|
return this.symbolNames.map(function(name) { |
|
return fxn(symbols[name], name); |
|
}); |
|
}; |
|
|
|
Grammar.prototype.applyToSymbols = function(fxn) { |
|
for (var i = 0; i < this.symbolNames.length; i++) { |
|
var key = this.symbolNames[i]; |
|
fxn(this.symbols[key], key); |
|
} |
|
}; |
|
|
|
//======================================================== |
|
Grammar.prototype.addOrGetSymbol = function(key) { |
|
if (this.symbols[key] === undefined) |
|
this.symbols[key] = new Symbol(key); |
|
|
|
return this.symbols[key]; |
|
}; |
|
|
|
Grammar.prototype.pushRules = function(key, rules) { |
|
var symbol = this.addOrGetSymbol(key); |
|
symbol.pushRules(rules); |
|
}; |
|
|
|
Grammar.prototype.popRules = function(key, rules) { |
|
var symbol = this.addOrGetSymbol(key); |
|
var popped = symbol.popRules(); |
|
|
|
if (symbol.ruleSets.length === 0) { |
|
// remove symbol |
|
this.symbols[key] = undefined; |
|
} |
|
}; |
|
|
|
Grammar.prototype.applyMod = function(modName, text) { |
|
if (!this.modifiers[modName]) { |
|
console.log(this.modifiers); |
|
throw ("Unknown mod: " + modName); |
|
} |
|
return this.modifiers[modName](text); |
|
}; |
|
|
|
//============================================================ |
|
Grammar.prototype.getRule = function(key, seed) { |
|
var symbol = this.symbols[key]; |
|
if (symbol === undefined) { |
|
var r = new Rule("{{" + key + "}}"); |
|
|
|
r.error = "Missing symbol " + key; |
|
return r; |
|
} |
|
|
|
var rule = symbol.getRule(); |
|
if (rule === undefined) { |
|
var r = new Rule("[" + key + "]"); |
|
console.log(r.sections); |
|
r.error = "Symbol " + key + " has no rule"; |
|
return r; |
|
} |
|
|
|
return rule; |
|
}; |
|
|
|
//============================================================ |
|
// Expansions |
|
Grammar.prototype.expand = function(raw) { |
|
|
|
// Start a new tree |
|
var root = new RootNode(this, raw); |
|
|
|
root.expand(); |
|
|
|
return root; |
|
}; |
|
|
|
Grammar.prototype.flatten = function(raw) { |
|
|
|
// Start a new tree |
|
var root = new RootNode(this, raw); |
|
|
|
root.expand(); |
|
|
|
return root.childText; |
|
}; |
|
|
|
//=============== |
|
|
|
Grammar.prototype.analyze = function() { |
|
this.symbolNames = []; |
|
for (var name in this.symbols) { |
|
if (this.symbols.hasOwnProperty(name)) { |
|
this.symbolNames.push(name); |
|
} |
|
} |
|
|
|
// parse every rule |
|
|
|
for (var i = 0; i < this.symbolNames.length; i++) { |
|
var key = this.symbolNames[i]; |
|
var symbol = this.symbols[key]; |
|
// parse all |
|
for (var j = 0; j < symbol.baseRules.length; j++) { |
|
var rule = symbol.baseRules[j]; |
|
rule.parsed = tracery.parse(rule.raw); |
|
// console.log(rule); |
|
|
|
} |
|
} |
|
|
|
}; |
|
|
|
Grammar.prototype.selectSymbol = function(key) { |
|
console.log(this); |
|
var symbol = this.get(key); |
|
}; |
|
/** |
|
* @author Kate Compton |
|
|
|
*/ |
|
|
|
tracery.createGrammar = function(obj) { |
|
var grammar = new Grammar(); |
|
grammar.loadFrom(obj); |
|
return grammar; |
|
}; |
|
|
|
tracery.test = function() { |
|
|
|
console.log("=========================================="); |
|
console.log("test tracery"); |
|
// good |
|
tracery.testParse("", false); |
|
tracery.testParse("fooo", false); |
|
tracery.testParse("####", false); |
|
tracery.testParse("#[]#[]##", false); |
|
tracery.testParse("#someSymbol# and #someOtherSymbol#", false); |
|
tracery.testParse("#someOtherSymbol.cap.pluralize#", false); |
|
tracery.testParse("#[#do some things#]symbol.mod[someotherthings[and a function]]#", false); |
|
tracery.testParse("#[fxn][fxn][fxn[subfxn]]symbol[[fxn]]#", false); |
|
tracery.testParse("#[fxn][#fxn#][fxn[#subfxn#]]symbol[[fxn]]#", false); |
|
tracery.testParse("#hero# ate some #color# #animal.s#", false); |
|
tracery.testParseTag("[action]symbol.mod1.mod2[postAction]", false); |
|
|
|
// bad |
|
tracery.testParse("#someSymbol# and #someOtherSymbol", true); |
|
tracery.testParse("#[fxn][fxn][fxn[subfxn]]symbol[fxn]]#", true); |
|
|
|
// bad |
|
tracery.testParseTag("stuff[action]symbol.mod1.mod2[postAction]", true); |
|
tracery.testParseTag("[action]symbol.mod1.mod2[postAction]stuff", true); |
|
|
|
tracery.testParse("#hero# ate some #color# #animal.s#", true); |
|
tracery.testParse("#[#setPronouns#][#setOccupation#][hero:#name#]story#", true); |
|
|
|
}; |
|
|
|
})(); |
