thirdparty/jsdoctoolkit/app/lib/JSDOC/DocTag.js
changeset 3041 c8f47f0b6697
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/thirdparty/jsdoctoolkit/app/lib/JSDOC/DocTag.js	Sun Oct 25 19:15:44 2009 +0000
@@ -0,0 +1,294 @@
+if (typeof JSDOC == "undefined") JSDOC = {};
+
+/**
+	@constructor
+ */
+JSDOC.DocTag = function(src) {
+	this.init();
+	if (typeof src != "undefined") {
+		this.parse(src);
+	}
+}
+
+/**
+	Create and initialize the properties of this.
+ */
+JSDOC.DocTag.prototype.init = function() {
+	this.title        = "";
+	this.type         = "";
+	this.name         = "";
+	this.isOptional   = false;
+	this.defaultValue = "";
+	this.desc         = "";
+	
+	return this;
+}
+
+/**
+	Populate the properties of this from the given tag src.
+	@param {string} src
+ */
+JSDOC.DocTag.prototype.parse = function(src) {
+	if (typeof src != "string") throw "src must be a string not "+(typeof src);
+
+	try {
+		src = this.nibbleTitle(src);
+		if (JSDOC.PluginManager) {
+			JSDOC.PluginManager.run("onDocTagSynonym", this);
+		}
+		
+		src = this.nibbleType(src);
+		
+		// only some tags are allowed to have names.
+		if (this.title == "param" || this.title == "property" || this.title == "config") { // @config is deprecated
+			src = this.nibbleName(src);
+		}
+	}
+	catch(e) {
+		if (LOG) LOG.warn(e);
+		else throw e;
+	}
+	this.desc = src; // whatever is left
+	
+	// example tags need to have whitespace preserved
+	if (this.title != "example") this.desc = this.desc.trim();
+	
+	if (JSDOC.PluginManager) {
+		JSDOC.PluginManager.run("onDocTag", this);
+	}
+}
+
+/**
+	Automatically called when this is stringified.
+ */
+JSDOC.DocTag.prototype.toString = function() {
+	return this.desc;
+}
+
+/*t:
+	plan(1, "testing JSDOC.DocTag#toString");
+	
+	var tag = new JSDOC.DocTag("param {object} date A valid date.");
+	is(""+tag, "A valid date.", "stringifying a tag returns the desc.");
+ */
+
+/**
+	Find and shift off the title of a tag.
+	@param {string} src
+	@return src
+ */
+JSDOC.DocTag.prototype.nibbleTitle = function(src) {
+	if (typeof src != "string") throw "src must be a string not "+(typeof src);
+	
+	var parts = src.match(/^\s*(\S+)(?:\s([\s\S]*))?$/);
+
+	if (parts && parts[1]) this.title = parts[1];
+	if (parts && parts[2]) src = parts[2];
+	else src = "";
+	
+	return src;
+}
+
+/*t:
+	plan(8, "testing JSDOC.DocTag#nibbleTitle");
+	
+	var tag = new JSDOC.DocTag();
+	
+	tag.init().nibbleTitle("aTitleGoesHere");
+	is(tag.title, "aTitleGoesHere", "a title can be found in a single-word string.");
+	
+	var src = tag.init().nibbleTitle("aTitleGoesHere and the rest");
+	is(tag.title, "aTitleGoesHere", "a title can be found in a multi-word string.");
+	is(src, "and the rest", "the rest is returned when the title is nibbled off.");
+	
+	src = tag.init().nibbleTitle("");
+	is(tag.title, "", "given an empty string the title is empty.");
+	is(src, "", "the rest is empty when the tag is empty.");
+
+	var src = tag.init().nibbleTitle(" aTitleGoesHere\n  a description");
+	is(tag.title, "aTitleGoesHere", "leading and trailing spaces are not part of the title.");
+	is(src, "  a description", "leading spaces (less one) are part of the description.");
+
+	tag.init().nibbleTitle("a.Title::Goes_Here foo");
+	is(tag.title, "a.Title::Goes_Here", "titles with punctuation are allowed.");
+ */
+
+/**
+	Find and shift off the type of a tag.
+	@requires frame/String.js
+	@param {string} src
+	@return src
+ */
+JSDOC.DocTag.prototype.nibbleType = function(src) {
+	if (typeof src != "string") throw "src must be a string not "+(typeof src);
+	
+	if (src.match(/^\s*\{/)) {
+		var typeRange = src.balance("{", "}");
+		if (typeRange[1] == -1) {
+			throw "Malformed comment tag ignored. Tag type requires an opening { and a closing }: "+src;
+		}
+		this.type = src.substring(typeRange[0]+1, typeRange[1]).trim();
+		this.type = this.type.replace(/\s*,\s*/g, "|"); // multiples can be separated by , or |
+		src = src.substring(typeRange[1]+1);
+	}
+	
+	return src;
+}
+
+/*t:
+	plan(5, "testing JSDOC.DocTag.parser.nibbleType");
+	requires("../frame/String.js");
+	
+	var tag = new JSDOC.DocTag();
+	
+	tag.init().nibbleType("{String[]} aliases");
+	is(tag.type, "String[]", "type can have non-alpha characters.");
+	
+	tag.init().nibbleType("{ aTypeGoesHere  } etc etc");
+	is(tag.type, "aTypeGoesHere", "type is trimmed.");
+	
+	tag.init().nibbleType("{ oneType, twoType ,\n threeType  } etc etc");
+	is(tag.type, "oneType|twoType|threeType", "multiple types can be separated by commas.");
+	
+	var error;
+	try { tag.init().nibbleType("{widget foo"); }
+	catch(e) { error = e; }
+	is(typeof error, "string", "malformed tag type throws error.");
+	isnt(error.indexOf("Malformed"), -1, "error message tells tag is malformed.");
+ */
+
+/**
+	Find and shift off the name of a tag.
+	@requires frame/String.js
+	@param {string} src
+	@return src
+ */
+JSDOC.DocTag.prototype.nibbleName = function(src) {
+	if (typeof src != "string") throw "src must be a string not "+(typeof src);
+	
+	src = src.trim();
+	
+	// is optional?
+	if (src.charAt(0) == "[") {
+		var nameRange = src.balance("[", "]");
+		if (nameRange[1] == -1) {
+			throw "Malformed comment tag ignored. Tag optional name requires an opening [ and a closing ]: "+src;
+		}
+		this.name = src.substring(nameRange[0]+1, nameRange[1]).trim();
+		this.isOptional = true;
+		
+		src = src.substring(nameRange[1]+1);
+		
+		// has default value?
+		var nameAndValue = this.name.split("=");
+		if (nameAndValue.length) {
+			this.name = nameAndValue.shift().trim();
+			this.defaultValue = nameAndValue.join("=");
+		}
+	}
+	else {
+		var parts = src.match(/^(\S+)(?:\s([\s\S]*))?$/);
+		if (parts) {
+			if (parts[1]) this.name = parts[1];
+			if (parts[2]) src = parts[2].trim();
+			else src = "";
+		}
+	}	
+
+	return src;
+}
+
+/*t:
+	requires("../frame/String.js");
+	plan(9, "testing JSDOC.DocTag.parser.nibbleName");
+	
+	var tag = new JSDOC.DocTag();
+	
+	tag.init().nibbleName("[foo] This is a description.");
+	is(tag.isOptional, true, "isOptional syntax is detected.");
+	is(tag.name, "foo", "optional param name is found.");
+ 	
+	tag.init().nibbleName("[foo] This is a description.");
+	is(tag.isOptional, true, "isOptional syntax is detected when no type.");
+	is(tag.name, "foo", "optional param name is found when no type.");
+	
+	tag.init().nibbleName("[foo=7] This is a description.");
+ 	is(tag.name, "foo", "optional param name is found when default value.");
+ 	is(tag.defaultValue, 7, "optional param default value is found when default value.");
+ 	
+ 	//tag.init().nibbleName("[foo= a value] This is a description.");
+ 	//is(tag.defaultValue, " a value", "optional param default value is found when default value has spaces (issue #112).");
+ 	
+ 	tag.init().nibbleName("[foo=[]] This is a description.");
+ 	is(tag.defaultValue, "[]", "optional param default value is found when default value is [] (issue #95).");
+ 	
+ 	tag.init().nibbleName("[foo=a=b] This is a description.");
+ 	is(tag.name, "foo", "optional param name is found when default value is a=b.");
+ 	is(tag.defaultValue, "a=b", "optional param default value is found when default value is a=b.")
+ */
+
+/*t:
+	plan(32, "Testing JSDOC.DocTag.parser.");
+	requires("../frame/String.js");
+	
+ 	var tag = new JSDOC.DocTag();
+ 	
+ 	is(typeof tag, "object", "JSDOC.DocTag.parser with an empty string returns an object.");
+ 	is(typeof tag.title, "string", "returned object has a string property 'title'.");
+ 	is(typeof tag.type, "string", "returned object has a string property 'type'.");
+ 	is(typeof tag.name, "string", "returned object has a string property 'name'.");
+ 	is(typeof tag.defaultValue, "string", "returned object has a string property 'defaultValue'.");
+ 	is(typeof tag.isOptional, "boolean", "returned object has a boolean property 'isOptional'.");
+ 	is(typeof tag.desc, "string", "returned object has a string property 'desc'.");
+  
+  	tag = new JSDOC.DocTag("param {widget} foo");
+  	is(tag.title, "param", "param title is found.");
+  	is(tag.name, "foo", "param name is found when desc is missing.");
+ 	is(tag.desc, "", "param desc is empty when missing.");
+ 	
+ 	tag = new JSDOC.DocTag("param {object} date A valid date.");
+ 	is(tag.name, "date", "param name is found with a type.");
+ 	is(tag.type, "object", "param type is found.");
+ 	is(tag.desc, "A valid date.", "param desc is found with a type.");
+ 	
+  	tag = new JSDOC.DocTag("param aName a description goes\n    here.");
+	is(tag.name, "aName", "param name is found without a type.");
+ 	is(tag.desc, "a description goes\n    here.", "param desc is found without a type.");
+ 	
+ 	tag = new JSDOC.DocTag("param {widget}");
+ 	is(tag.name, "", "param name is empty when it is not given.");
+	
+	tag = new JSDOC.DocTag("param {widget} [foo] This is a description.");
+	is(tag.name, "foo", "optional param name is found.");
+	
+	tag = new JSDOC.DocTag("return {aType} This is a description.");
+	is(tag.type, "aType", "when return tag has no name, type is found.");
+	is(tag.desc, "This is a description.", "when return tag has no name, desc is found.");
+	
+	tag = new JSDOC.DocTag("author Joe Coder <jcoder@example.com>");
+	is(tag.title, "author", "author tag has a title.");
+	is(tag.type, "", "the author tag has no type.");
+	is(tag.name, "", "the author tag has no name.");
+	is(tag.desc, "Joe Coder <jcoder@example.com>", "author tag has desc.");
+	
+	tag = new JSDOC.DocTag("private \t\n  ");
+	is(tag.title, "private", "private tag has a title.");
+	is(tag.type, "", "the private tag has no type.");
+	is(tag.name, "", "the private tag has no name.");
+	is(tag.desc, "", "private tag has no desc.");
+
+	tag = new JSDOC.DocTag("example\n   example(code);\n   more();");
+	is(tag.desc, "   example(code);\n   more();", "leading whitespace (less one) in examples code is preserved.");
+	
+	tag = new JSDOC.DocTag("param theName  \n");
+	is(tag.name, "theName", "name only is found.");
+	
+	tag = new JSDOC.DocTag("type theDesc  \n");
+	is(tag.desc, "theDesc", "desc only is found.");
+	
+	tag = new JSDOC.DocTag("type {theType} \n");
+	is(tag.type, "theType", "type only is found.");
+	
+	tag = new JSDOC.DocTag("");
+	is(tag.title, "", "title is empty when tag is empty.");
+ */
\ No newline at end of file