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+
+//Variable and Constant definitions
+
+var expColImg = new Array(2);
+expColImg[0] = new Image(12,12);
+expColImg[0].src = "minus.png";
+expColImg[1] = new Image(12,12);
+expColImg[1].src = "plus.png";
+expColImg[2] = new Image(12,12);
+expColImg[2].src = "empty.png";
+
+// Grammars
+var grammar = undefined;
+var editorGrammar = Editor;
+
+var selectedLanguage = "EditorEng";
+var selectedNode = "";
+var collapseBuffer = new Array();
+var abstractTree = new Fun ("?");
+
+var navigationControlString = new Array();
+var undoArray = new Array();
+var redoArray = new Array();
+var clipBoard;
+var refPageCounter = 0;
+
+var stringAbstractTree = undefined;
+var myTree = undefined;
+var parseTrees = undefined;
+
+var keys = new Array();
+keys ["Z"] = function() { clickUndo('actUndo'); }
+keys ["Y"] = function() { clickRedo('actRedo'); }
+keys ["R"] = function() { clickRefine('actRefine'); };
+keys ["V"] = function() { clickPaste('actPaste'); };
+keys ["X"] = function() { clickCut('actCut'); };
+keys ["C"] = function() { clickCopy('actCopy'); };
+keys ["D"] = function() { clickDelete('actDelete'); };
+keys ["E"] = function() { clickReplace('actReplace'); };
+keys ["W"] = function() { clickWrap('actWrap'); };
+keys ["P"] = function() { clickParse('actParse'); };
+keys ["N"] = function() { clickRandomNode('actRandomNode'); };
+keys ["T"] = function() { clickRandomTree('actRandomTree'); };
+keys ["%"] = function() { leftArrowKey(); };
+keys ["&"] = function() { upDownArrowKey(-1); };
+keys ["'"] = function() { rightArrowKey(); };
+keys ["("] = function() { upDownArrowKey( 1); };
+keys ["27"] = function() { clickEsc(); };
+
+function state(selectedNode, tree, collapseBuffer) {
+ this.selectedNode = selectedNode;
+ this.tree = grammar.abstract.copyTree(tree);
+ this.collapseBuffer = collapseBuffer;
+ return this;
+}
+
+function treeNode(name, caption) {
+ this.name = name;
+ this.caption = caption;
+ this.cat = "";
+ this.children = new Array();
+ this.collapsed = false;
+ return this;
+}
+
+treeNode.prototype.addChild = function (i, c) {
+ this.children[i] = c;
+}
+
+treeNode.prototype.hasChildren = function() {
+ return this.children.length;
+}
+
+/* -------------------------------------------------------------------------- */
+/* ----------------------------- GUI functions ----------------------------- */
+/* -------------------------------------------------------------------------- */
+
+
+// Creates an instance of the editor and stores it in the given HTML container.
+// Previous content is destroyed.
+function mkEditor(container, myGrammar) {
+ grammar = myGrammar;
+ myTree = treeFromAbstract(grammar.abstract.annotate(abstractTree, grammar.abstract.startcat), "0");
+ var holder = document.getElementById(container);
+ holder.innerHTML = "<div id='wrapper'><div id='absFrame'></div><div id='conFrame'></div><div id='actFrame'></div><div id='refFrame'></div><div id='messageFrame'></div><div id='clipboardFrame'></div></div>";
+ nodeClick('0', '?');
+}
+
+// Generates a tree from the string representation of an abstract tree contained in the element elementToParse
+function parseStringTree(elementToParse) {
+ stringAbstractTree = elementToParse;
+ abstractTree = grammar.abstract.handleLiterals(grammar.abstract.parseTree(document.getElementById(elementToParse).value, grammar.abstract.startcat));
+ myTree = treeFromAbstract(abstractTree, "0");
+ nodeClick("0");
+}
+
+// If a key is pressed and a function assigned to that key, calls the function
+function hotKeys(event) {
+ event = (event) ? event : ((window.event) ? event : null);
+ if (event) {
+ var charCode = (event.charCode) ? event.charCode : ((event.which) ? event.which : event.keyCode);
+ if (keys[String.fromCharCode(charCode).toUpperCase()] &&
+ !event.ctrlKey && !event.altKey && !event.shiftKey && !event.metaKey) {
+ keys[String.fromCharCode(charCode).toUpperCase()]();
+ }
+ else if (keys["" + charCode] &&
+ !event.ctrlKey && !event.altKey && !event.shiftKey && !event.metaKey) {
+ keys["" + charCode]();
+ }
+ else if (charCode >= "96" && charCode <= "105" &&
+ !event.ctrlKey && !event.altKey && !event.shiftKey && !event.metaKey) {
+ keys["" + (charCode - 96)]();
+ }
+ }
+}
+
+// Clears "numeric" hotkeys
+function clearHotKeys() {
+ for (var key in keys) {
+ if ((parseInt(key) + 1) && (key != "27")) { keys[key] = function() { }; }
+ }
+}
+
+// Action to be performed when the up/down arrow key is pressed
+function upDownArrowKey(pos) {
+ var nodePos = getNavPos(selectedNode);
+ if ((nodePos > 0 && pos < 0) || (nodePos < navigationControlString.length - 1 && pos > 0)) {
+ nodeClick(navigationControlString[nodePos + pos]);
+ }
+}
+
+// Gets the position of a given node in the navigationControlString
+function getNavPos(nodeName) {
+ for (var i = 0, j = navigationControlString.length; i < j; i++) {
+ if (navigationControlString[i] == nodeName) { return i; };
+ }
+ return undefined;
+}
+
+// Given a name and a tree, gets the node in the tree with that name
+function getNode(nodeName, node) {
+ if (nodeName == node.name) {
+ return node;
+ }
+ else {
+ for (var i = 0, j = node.children.length; i < j; i++) {
+ var found = getNode(nodeName, node.children[i]);
+ if (found) { return found; }
+ }
+ }
+}
+
+// Action to be performed when the left arrow key is pressed
+function leftArrowKey() {
+ var node = getNode(selectedNode, myTree);
+ if (!node.collapsed && node.hasChildren()) {
+ signClick(node.name, node.caption);
+ }
+ else {
+ var parentNode = getParent(node.name, myTree);
+ if (parentNode) { nodeClick(parentNode.name); }
+ }
+}
+
+// Gets the parent of the selected node
+function getParent(nodeName, node) {
+ if (node.name == nodeName) {
+ return undefined;
+ }
+ else {
+ for (var i = 0, j = node.children.length; i < j; i++) {
+ if (node.children[i].name == nodeName) { return node; }
+ }
+ for (var i = 0, j = node.children.length; i < j; i++) {
+ var found = getParent(nodeName, node.children[i]);
+ if (found) { return found; }
+ }
+ }
+}
+
+// Action to be performed when the right arrow key is pressed
+function rightArrowKey() {
+ var node = getNode(selectedNode, myTree);
+ if (node.collapsed) {
+ signClick(node.name, node.caption);
+ }
+ else {
+ var firstDescendant = getfirstDescendant(node);
+ if (firstDescendant) {
+ nodeClick(firstDescendant.name);
+ }
+ }
+}
+
+// Gets the first descendant child of a node
+function getfirstDescendant(node) {
+ if (node.hasChildren() && !node.collapsed) { return node.children[0]; }
+ return undefined;
+}
+
+// Produces and displays an HTML representation of the tree
+function drawTree() {
+ var frame = document.getElementById("absFrame");
+ navigationControlString = new Array();
+ frame.innerHTML = "<ul id='tree'>" + getTree(myTree, 0) + "</ul>";
+ document.getElementById("link" + selectedNode).scrollIntoView(false);
+}
+
+// Produces an HTML representation of the tree
+function getTree(tree, level) {
+ navigationControlString[navigationControlString.length] = tree.name;
+ var htmlTree = new Array();
+ htmlTree.push("<li>");
+ if (tree.hasChildren()) {
+ htmlTree.push("<img class='tree-menu'");
+ if (tree.collapsed) {
+ htmlTree.push(" src='plus.png'");
+ }
+ else { htmlTree.push(" src='minus.png'"); }
+ htmlTree.push(" onclick='signClick(\"", tree.name, "\", \"", tree.caption, "\")' />");
+ }
+ else {
+ htmlTree.push("<img class='tree-menu' src='empty.png' />");
+ }
+ htmlTree.push("<a id='link", tree.name, "'");
+ if (document.getElementById("actRefine").className == "selected" ||
+ document.getElementById("actReplace").className == "selected" ||
+ document.getElementById("actWrap").className == "selected" ||
+ document.getElementById("actParse").className == "selected") {
+ htmlTree.push("class='treeGray' "); }
+ else if (selectedNode == tree.name) { htmlTree.push("class='treeSelected' "); }
+ else { htmlTree.push("class='tree' "); }
+ htmlTree.push("href='' onclick='nodeClick(\"", tree.name, "\"); return false'>");
+ if (tree.cat == "String" || tree.cat == "Int" || tree.cat == "Float") {
+ htmlTree.push(tree.caption.substring(tree.caption.lastIndexOf("_") + 1));
+ } else {
+ htmlTree.push(tree.caption);
+ }
+ htmlTree.push("&nbsp;:&nbsp;", tree.cat, "</a></li><ul>");
+ if (tree.hasChildren() && !tree.collapsed) {
+ for (var i = 0, j = tree.children.length; i < j; i++) {
+ htmlTree.push(getTree(tree.children[i], level + 1));
+ }
+ }
+ htmlTree.push("</ul>");
+ return htmlTree.join("");
+}
+
+// Linearizes and displays the abstract tree
+function drawLinearizedFrame() {
+ var frame = document.getElementById("conFrame");
+ frame.innerHTML = getLinearizedFrame();
+}
+
+// Linearizes the abstract tree and returns it in HTML form
+function getLinearizedFrame() {
+ var linearizedFrame = new Array();
+ for (var i in grammar.concretes) {
+ linearizedFrame.push("<h4>", i, "</h4>");
+ linearizedFrame.push("<p id='line", i, "'>");
+ var tokens = grammar.concretes[i].tagAndLinearize(abstractTree);
+ for (var j = 0, k = tokens.length; j < k; j++) {
+ linearizedFrame.push(createLinearized(tokens[j]));
+ }
+ linearizedFrame.push("</p>");
+ }
+ linearizedFrame.push("<h4>Abstract</h4>");
+ linearizedFrame.push("<p id='lineAbstract'>", createLinearizedFromAbstract(myTree, "0"), "</p>");
+ return linearizedFrame.join("");
+}
+
+// Creates an HTML representation of a linearization of an abstract tree
+function createLinearized(token) {
+ var node = getNode(token.tag, myTree);
+ var linearized = new Array()
+ linearized.push("<span id='", token.tag, "' class=");
+ if (node.name.substr(0, selectedNode.length) == selectedNode) {
+ linearized.push("'selected'");
+ }
+ else {
+ linearized.push("'normal'");
+ }
+ if (token == "&-") { linearized.push("<br />"); }
+ else { linearized.push(" onclick='nodeClick(\"", node.name, "\");'>&nbsp;", token, " </span>"); }
+ return linearized.join("");
+}
+
+// Creates an HTML representation of the abstract tree
+function createLinearizedFromAbstract(node, path, prec) {
+ var linearized = new Array();
+ linearized.push("<span id='", path, "' class=");
+ if (node.name.substr(0, selectedNode.length) == selectedNode) {
+ linearized.push("'selected'");
+ }
+ else {
+ linearized.push("'normal'");
+ }
+ linearized.push(" onclick='nodeClick(\"", node.name, "\");'>");
+ if (node.children.length) { linearized.push(" ("); }
+ if (node.cat == "String" || node.cat == "Int" || node.cat == "Float") {
+ linearized.push("&nbsp;", node.caption.substring(node.caption.lastIndexOf("_") + 1), "&nbsp;");
+ } else {
+ linearized.push("&nbsp;", node.caption, "&nbsp;");
+ }
+ for (var i = 0, j = node.children.length; i < j; i++) {
+ linearized.push(createLinearizedFromAbstract(node.children[i], path + "-" + i, 1));
+ }
+ if (node.children.length) { linearized.push(") "); }
+ linearized.push("</span>");
+ return linearized.join("");
+}
+
+// Expands/Collapses node
+function signClick(name, caption) {
+ myTree = expandCollapse(myTree, name);
+ nodeClick(name);
+}
+
+// Sets the "collapsed" property of a given node
+function expandCollapse(node, name) {
+ if (node.name == name) {
+ if (wasCollapsed(node.name)) { removeFromCollapseBuffer(node.name); }
+ else { collapseBuffer[collapseBuffer.length] = node.name; }
+ node.collapsed ^= true;
+ }
+ else {
+ for (var i = 0, j = node.children.length; i < j; i++) {
+ expandCollapse(node.children[i], name);
+ }
+ }
+ return node;
+}
+
+// Checks if a node was collapsed on the previous cycle
+function wasCollapsed(nodeName) {
+ for (var i = 0, j = collapseBuffer.length; i < j; i++) {
+ if (nodeName == collapseBuffer[i]) {
+ return true;
+ }
+ }
+ return false;
+}
+
+// Removes a node from the collapseBuffer array
+function removeFromCollapseBuffer(nodeName) {
+ var newBuffer = new Array();
+ for (var i = 0, j = collapseBuffer.length; i < j; i++) {
+ if (nodeName != collapseBuffer[i]) {
+ newBuffer[newBuffer.length] = collapseBuffer[i];
+ }
+ }
+ collapseBuffer = newBuffer;
+}
+
+// Selects a node
+function nodeClick(name) {
+ if ((document.getElementById("actRefine") && document.getElementById("actRefine").className == "selected") ||
+ (document.getElementById("actReplace") && document.getElementById("actReplace").className == "selected") ||
+ (document.getElementById("actWrap") && document.getElementById("actWrap").className == "selected") ||
+ (document.getElementById("actTree") && document.getElementById("actTree").className == "selected")) {
+ return; }
+ selectedNode = name;
+ if (stringAbstractTree) {
+ document.getElementById(stringAbstractTree).value = abstractTree.show();
+ }
+ document.getElementById("actFrame").innerHTML = showActions();
+ document.getElementById("refFrame").innerHTML = "";
+ document.getElementById("messageFrame").innerHTML = showLanguages();
+ document.getElementById(selectedLanguage).className = "selected";
+ applyLanguage();
+ drawTree();
+ drawLinearizedFrame();
+}
+
+// Shows the available languages for the editor
+function showLanguages() {
+ var languages = new Array();
+ languages.push("<table class='language' id='languagesTable'>",
+ "<tr id='langs' class='language'>",
+ "<td class='language' id='EditorDan' title='Label Bulgarian' onclick='clickLanguage(\"\")'>Bulgarian</td>",
+ "<td class='language' id='EditorDan' title='Label Danish' onclick='clickLanguage(\"\")'>Danish</td>",
+ "<td class='language' id='EditorEng' title='Label English' onclick='clickLanguage(\"EditorEng\")'>English</td>",
+ "<td class='language' id='EditorFin' title='Label Finnish' onclick='clickLanguage(\"\")'>Finnish</td>",
+ "<td class='language' id='EditorFre' title='Label French' onclick='clickLanguage(\"EditorFre\")'>French</td>",
+ "<td class='language' id='EditorGer' title='Label German' onclick='clickLanguage(\"\")'>German</td>",
+ "<td class='language' id='EditorIta' title='Label Italian' onclick='clickLanguage(\"\")'>Italian</td>",
+ "<td class='language' id='EditorNor' title='Label Norwegian' onclick='clickLanguage(\"\")'>Norwegian</td>",
+ "<td class='language' id='EditorRus' title='Label Russian' onclick='clickLanguage(\"\")'>Russian</td>",
+ "<td class='language' id='EditorSpa' title='Label Spanish' onclick='clickLanguage(\"EditorSpa\")'>Spanish</td>",
+ "<td class='language' id='EditorSwe' title='Label Swedish' onclick='clickLanguage(\"EditorSwe\")'>Swedish</td></tr>",
+ "</table>");
+ return languages.join("");
+}
+
+// Selects the language to use in the editor
+function clickLanguage(lang) {
+ if (lang) {
+ var tdsToClear = document.getElementById("languagesTable").getElementsByTagName("td");
+ for (var i = 0, j = tdsToClear.length; i < j; i++) {
+ if (tdsToClear[i].className == "selected") { tdsToClear[i].className = "language"; }
+ }
+ document.getElementById(lang).className = "selected";
+ selectedLanguage = lang;
+ applyLanguage();
+ }
+}
+
+// Applies a language to the editor
+function applyLanguage() {
+ var langsToLinearize = document.getElementById("languagesTable").getElementsByTagName("td");
+ for (var i = 0, j = langsToLinearize.length; i < j; i++) {
+ var absStr = langsToLinearize[i].getAttribute("title");
+ var lin = editorGrammar.concretes[selectedLanguage].linearize(editorGrammar.abstract.parseTree(absStr, editorGrammar.abstract.startcat));
+ lin = lin.substring(0,1).toUpperCase().concat(lin.substring(1))
+ if (!langsToLinearize[i].firstChild) {
+ var txt = document.createTextNode(lin);
+ langsToLinearize[i].appendChild(txt);
+ }
+ else {
+ langsToLinearize[i].firstChild.nodeValue = lin;
+ }
+ }
+ var actionsToLinearize = document.getElementById("actionsTable").getElementsByTagName("td");
+ for (var i = 0, j = actionsToLinearize.length; i < j; i++) {
+ if (actionsToLinearize[i].className == "action") {
+ var absStr = actionsToLinearize[i].getAttribute("title");
+ var lin = editorGrammar.concretes[selectedLanguage].linearize(editorGrammar.abstract.parseTree(absStr, editorGrammar.abstract.startcat));
+ lin = lin.substring(0,1).toUpperCase().concat(lin.substring(1))
+ if (!actionsToLinearize[i].firstChild) {
+ var txt = document.createTextNode(lin);
+ actionsToLinearize[i].appendChild(txt);
+ }
+ else {
+ actionsToLinearize[i].firstChild.nodeValue = lin;
+ }
+ }
+ }
+ var messageToLinearize = document.getElementById("refgenRefRandom");
+ if (messageToLinearize) {
+ var msg = editorGrammar.concretes[selectedLanguage].linearize(editorGrammar.abstract.parseTree("RandomlyCommand Select IndefSgDet Refinement", editorGrammar.abstract.startcat));
+ messageToLinearize.firstChild.firstChild.nodeValue = msg.substring(0,1).toUpperCase().concat(msg.substring(1));
+ }
+ var messageToLinearize = document.getElementById("nextRefsNext");
+ if (messageToLinearize) {
+ var msg = editorGrammar.concretes[selectedLanguage].linearize(editorGrammar.abstract.parseTree("CommandAdj Show DefSgDet Next Page", editorGrammar.abstract.startcat));
+ messageToLinearize.firstChild.firstChild.nodeValue = msg.substring(0,1).toUpperCase().concat(msg.substring(1));
+ }
+ messageToLinearize = document.getElementById("nextRefsPrevious");
+ if (messageToLinearize) {
+ var msg = editorGrammar.concretes[selectedLanguage].linearize(editorGrammar.abstract.parseTree("CommandAdj Show DefSgDet Previous Page", editorGrammar.abstract.startcat));
+ messageToLinearize.firstChild.firstChild.nodeValue = msg.substring(0,1).toUpperCase().concat(msg.substring(1));
+ }
+ var messageToLinearize = document.getElementById("nextWrapsNext");
+ if (messageToLinearize) {
+ var msg = editorGrammar.concretes[selectedLanguage].linearize(editorGrammar.abstract.parseTree("CommandAdj Show DefSgDet Next Page", editorGrammar.abstract.startcat));
+ messageToLinearize.firstChild.firstChild.nodeValue = msg.substring(0,1).toUpperCase().concat(msg.substring(1));
+ }
+ messageToLinearize = document.getElementById("nextWrapsPrevious");
+ if (messageToLinearize) {
+ var msg = editorGrammar.concretes[selectedLanguage].linearize(editorGrammar.abstract.parseTree("CommandAdj Show DefSgDet Previous Page", editorGrammar.abstract.startcat));
+ messageToLinearize.firstChild.firstChild.nodeValue = msg.substring(0,1).toUpperCase().concat(msg.substring(1));
+ }
+}
+
+// Shows the available actions for a node
+function showActions(caption) {
+ var node = getNode(selectedNode, myTree);
+ var abstractNode = getNodeFromAbstract(abstractTree, node.name, "0");
+ var actions = new Array();
+ actions.push("<table class='action' id='actionsTable'>");
+ if (undoArray.length) {
+ actions.push(createAction("Undo", "action", "SingleWordCommand Undo", "Z")); }
+ else { actions.push(createAction("Undo", "unavailable", "SingleWordCommand Undo", "Z")); };
+ if (redoArray.length) {
+ actions.push(createAction("Redo", "action", "SingleWordCommand Redo", "Y")); }
+ else { actions.push(createAction("Redo", "unavailable", "SingleWordCommand Redo", "Y")); }
+ if (node.caption == "?") {
+ actions.push(createAction("Cut", "unavailable", "SingleWordCommand Cut", "X"));
+ actions.push(createAction("Copy", "unavailable", "SingleWordCommand Copy", "C"));
+ var AbsNodeType = abstractNode.type;
+ if (clipBoard && (AbsNodeType == grammar.abstract.getCat(clipBoard.name))) {
+ actions.push(createAction("Paste", "action", "SingleWordCommand Paste", "V"));
+ }
+ else { actions.push(createAction("Paste", "unavailable", "SingleWordCommand Paste", "V")); }
+ actions.push(createAction("Delete", "unavailable", "SingleWordCommand Delete", "D"));
+ actions.push(createAction("Refine", "action", "SingleWordCommand Refine", "R"));
+ actions.push(createAction("Replace", "unavailable", "SingleWordCommand Replace", "E"));
+ actions.push(createAction("Wrap", "unavailable", "SingleWordCommand Wrap", "W"));
+ for (var i in grammar.concretes) {
+ if (grammar.concretes[i].parser) {
+ actions.push(createAction("Parse", "action", "Command Parse IndefSgDet String_N", "P"));
+ } else { actions.push(createAction("Parse", "unavailable", "Command Parse IndefSgDet String_N", "P")); }
+ break;
+ }
+ }
+ else if (node.caption) {
+ actions.push(createAction("Cut", "action", "SingleWordCommand Cut", "X"));
+ actions.push(createAction("Copy", "action", "SingleWordCommand Copy", "C"));
+ actions.push(createAction("Paste", "unavailable", "SingleWordCommand Paste", "V"));
+ actions.push(createAction("Delete", "action", "SingleWordCommand Delete", "D"));
+ actions.push(createAction("Refine", "unavailable", "SingleWordCommand Refine", "R"));
+ actions.push(createAction("Replace", "action", "SingleWordCommand Replace", "E"));
+ actions.push(createAction("Wrap", "action", "SingleWordCommand Wrap", "W"));
+ actions.push(createAction("Parse", "unavailable", "Command Parse IndefSgDet String_N", "P"));
+ }
+ if (node && !abstractNode.isComplete()) {
+ actions.push(createAction("RandomNode", "action", "RandomlyCommand Refine DefSgDet Node", "N"));
+ }
+ else {
+ actions.push(createAction("RandomNode", "unavailable", "RandomlyCommand Refine DefSgDet Node", "N"));
+ }
+ if (!abstractTree.isComplete()) {
+ actions.push(createAction("RandomTree", "action", "RandomlyCommand Refine DefSgDet Tree", "T"));
+ }
+ else {
+ actions.push(createAction("RandomTree", "unavailable", "RandomlyCommand Refine DefSgDet Tree", "T"));
+ }
+ actions.push("</table>");
+ return actions.join("");
+
+}
+
+// Creates an action
+function createAction(actionName, className, caption, hotKey) {
+ return "<tr id='act" + actionName + "' class='" + className +"' onclick='click" +
+ actionName + "(\"act" + actionName + "\")'><td class='action' title='" +
+ caption + "'>" + caption + "</td><td class='hotKey'>(" + hotKey + ")</td></tr>";
+}
+
+// When the "Refine" action is selected, gets the appropriate refinements for a node
+function clickRefine(actName) {
+ if (document.getElementById(actName).className == "action") {
+ highlightSelectedAction(actName);
+ pushUndoClearRedo();
+ if (selectedNode) {
+ refPageCounter = 0;
+ var node = getNodeFromAbstract(abstractTree, selectedNode, "0");
+ if (node.type == "String" || node.type == "Int" || node.type == "Float") {
+ var newType = undefined;
+ var newTypeCat = node.type + "_Literal_";
+ switch(node.type)
+ {
+ case "String":
+ var msg = editorGrammar.concretes[selectedLanguage].linearize(editorGrammar.abstract.parseTree("Command Enter IndefSgDet String_N", editorGrammar.abstract.startcat));
+ newType = prompt(msg.substring(0,1).toUpperCase().concat(msg.substring(1)),'String');
+ if (!newType) { newType = "AutoString"; }
+ break;
+ case "Int":
+ while (isNaN(newType) || (newType && newType.indexOf(".") != -1)) {
+ var msg = editorGrammar.concretes[selectedLanguage].linearize(editorGrammar.abstract.parseTree("Command Enter IndefSgDet Integer_N", editorGrammar.abstract.startcat));
+ newType = prompt(msg.substring(0,1).toUpperCase().concat(msg.substring(1)),'Int');
+ }
+ if (!newType) { newType = "8"; }
+ break;
+ case "Float":
+ while (isNaN(newType)) {
+ var msg = editorGrammar.concretes[selectedLanguage].linearize(editorGrammar.abstract.parseTree("Command Enter IndefSgDet Float_N", editorGrammar.abstract.startcat));
+ newType = prompt(msg.substring(0,1).toUpperCase().concat(msg.substring(1)),'Float');
+ }
+ if (!newType) { newType = "8.0"; }
+ if (newType.indexOf(".") == -1) { newType += ".0"; }
+ break;
+ }
+ if (node.type == "String") {
+ newTypeCat += "\"" + newType + "\"";
+ } else {
+ newTypeCat += newType;
+ }
+ if (!grammar.abstract.types[newTypeCat]) {
+ grammar.abstract.addType(newTypeCat, [], node.type);
+ for (var i in grammar.concretes) {
+ grammar.concretes[i].addRule(newTypeCat, function(cs){ return new Arr(new Str(newType));});
+ }
+ }
+ node.name = newTypeCat;
+ abstractTree = insertNode(abstractTree, selectedNode, "0", node);
+ document.getElementById("actFrame").innerHTML = showActions();
+ document.getElementById("refFrame").innerHTML = "";
+ clearHotKeys();
+ concludeAction();
+ } else {
+ document.getElementById("refFrame").innerHTML = showRefinements(selectedNode);
+ }
+ }
+ }
+}
+
+// Sets the className of actName to "selected" and grays out the other selections
+function highlightSelectedAction(actName) {
+ graySelections(actName);
+ document.getElementById(actName).className = "selected";
+ drawTree();
+}
+
+// Grays out all actions except one
+function graySelections(except) {
+ var refs = document.getElementById("actFrame").getElementsByTagName("tr");
+ for (var i = 0, j = refs.length; i < j; i++) {
+ if (refs[i].id != except) { refs[i].className = "closed"; }
+ }
+}
+
+// Pushes the abstract tree into the undo array and clears the redo array
+function pushUndoClearRedo() {
+ undoArray.push(new state(selectedNode, abstractTree, collapseBuffer));
+ redoArray.length = 0;
+}
+
+// Gets the refinements to display
+function showRefinements(nodeName) {
+ var refs = getAvailableRefinements(nodeName, abstractTree, grammar);
+ var rowsPerPage = 9;
+ var pages = Math.floor(refs.length / rowsPerPage);
+ var upperLimit;
+ if (pages != refPageCounter) { upperLimit = (rowsPerPage * refPageCounter) + rowsPerPage; }
+ else { upperLimit = refs.length; }
+ var refinements = new Array();
+ refinements.push("<table class='refinement'>");
+ var keyPos = 0;
+ refinements.push(ref_wrapToHtml("ref", "genRefRandom", "refinement", "", keyPos, "RandomlyCommand Select IndefSgDet Refinement"));
+ keys["" + keyPos] = mkRefHotKey("genRefRandom");
+ keyPos++;
+ for (var i = (rowsPerPage * refPageCounter), j = upperLimit; i < j; i++) {
+ refinements.push(ref_wrapToHtml("ref", refs[i], "refinement", "", keyPos, ""));
+ keys["" + keyPos] = mkRefHotKey(refs[i]);
+ keyPos++;
+ }
+ if (((refs.length % rowsPerPage == 0) && (pages - 1) > refPageCounter) ||
+ ((refs.length % rowsPerPage != 0) && pages > refPageCounter) ) {
+ refinements.push(ref_wrapNextRefsToHtml("nextRefs", "Next", "refinement", "+", editorGrammar.concretes[selectedLanguage].linearize(editorGrammar.abstract.parseTree("CommandAdj Show DefSgDet Next Page", editorGrammar.abstract.startcat))));
+ keys["107"] = mkRefNextRefsHotKey("Next");
+ }
+ if (0 < refPageCounter) {
+ refinements.push(ref_wrapNextRefsToHtml("nextRefs", "Previous", "refinement", "-", editorGrammar.concretes[selectedLanguage].linearize(editorGrammar.abstract.parseTree("CommandAdj Show DefSgDet Previous Page", editorGrammar.abstract.startcat))));
+ keys["109"] = mkRefNextRefsHotKey("Previous");
+ }
+ refinements.push("</table>");
+ return refinements.join("");
+}
+
+// Creates an HTML representation of a Refinement/Wrap
+function ref_wrapToHtml(funct, name, className, arg, hotKeyPos, caption) {
+ var ref_wrapHtml = new Array();
+ ref_wrapHtml.push("<tr id='", funct, name, "' class=", className, " onclick='", funct, "Click(\"", name, "\"", arg, ")'><td class='", className, "'>");
+ if (caption) { ref_wrapHtml.push(editorGrammar.concretes[selectedLanguage].linearize(editorGrammar.abstract.parseTree(caption, editorGrammar.abstract.startcat))); }
+ else { ref_wrapHtml.push(name, "&nbsp;:&nbsp;", refArgsToHtml(name), grammar.abstract.getCat(name)); }
+ ref_wrapHtml.push("</td><td class='hotKey'>(", hotKeyPos, ")</td></tr>");
+ return ref_wrapHtml.join("");
+}
+
+// Creates the function to be used by a "numeric" hot key
+function mkRefHotKey(refName) {
+ return function() { if (document.getElementById("ref" + refName)) { refClick(refName); } }
+}
+
+// Creates an HTML representation of the Next/Previous Refinement/Wrap page
+function ref_wrapNextRefsToHtml(funct, name, className, hotKeyPos, caption) {
+ var ref_wrapHtml = new Array();
+ ref_wrapHtml.push("<tr id='", funct, name, "' class=", className, " onclick='", funct, "Click(\"", name, "\")'><td class='", className, "'>");
+ ref_wrapHtml.push(caption);
+ ref_wrapHtml.push("</td><td class='hotKey'>(", hotKeyPos, ")</td></tr>");
+ return ref_wrapHtml.join("");
+}
+
+// Creates the function to be used by a "+"/"-" hot key
+function mkRefNextRefsHotKey(refName) {
+ return function() { if (document.getElementById("nextRefs" + refName)) { nextRefsClick(refName); } }
+}
+
+// Creates a string representation of the arguments of a refinement
+function refArgsToHtml(fun) {
+ var args = new Array();
+ for (var i = 0, j = grammar.abstract.types[fun].args.length; i < j; i++) {
+ args.push(grammar.abstract.types[fun].args[i], "&nbsp;->&nbsp;");
+ }
+ return args.join("");
+}
+
+// Gets the type of a meta variable
+function getMetaType(absNode, route, currRoute) {
+ if (route == currRoute && absNode.isMeta()) {
+ return absNode.type;
+ }
+ else {
+ for (var i = 0, j = absNode.args.length; i < j; i++) {
+ var found = getMetaType(absNode.args[i], route, currRoute + "-" + i);
+ if (found) { return found };
+ }
+ }
+}
+
+// When the "Undo" action is selected, undoes the last action
+function clickUndo(actName) {
+ if (document.getElementById(actName).className == "action" && undoArray.length) {
+ highlightSelectedAction(actName);
+ redoArray.push(new state(selectedNode, abstractTree, collapseBuffer));
+ var prevState = undoArray.pop();
+ selectedNode = prevState.selectedNode;
+ abstractTree = grammar.abstract.copyTree(prevState.tree);
+ collapseBuffer = prevState.collapseBuffer;
+ if (abstractTree.isComplete()) { selectedNode = "0"; }
+ abstractTree = grammar.abstract.annotate(abstractTree, grammar.abstract.startcat);
+ myTree = treeFromAbstract(abstractTree, "0");
+ nodeClick(selectedNode);
+ }
+}
+
+// When the "Redo" action is selected, redoes the last action
+function clickRedo(actName) {
+ if (document.getElementById(actName).className == "action" && redoArray.length) {
+ highlightSelectedAction(actName);
+ undoArray.push(new state(selectedNode, abstractTree, collapseBuffer));
+ var nextState = redoArray.pop();
+ selectedNode = nextState.selectedNode;
+ abstractTree = grammar.abstract.copyTree(nextState.tree);
+ collapseBuffer = nextState.collapseBuffer;
+ abstractTree = grammar.abstract.annotate(abstractTree, grammar.abstract.startcat);
+ myTree = treeFromAbstract(abstractTree, "0");
+ nodeClick(selectedNode);
+ }
+}
+
+// When the "Copy" action is selected, copies the selected node to the clipboard
+function clickCopy(actName) {
+ if (document.getElementById(actName).className == "action") {
+ highlightSelectedAction(actName);
+ if (selectedNode) {
+ clipBoard = grammar.abstract.copyTree(getNodeFromAbstract(abstractTree, selectedNode, "0"));
+ document.getElementById("clipboardFrame").innerHTML = clipBoard.name + "&nbsp;:&nbsp;" + grammar.abstract.getCat(clipBoard.name);
+ nodeClick(selectedNode);
+ }
+ }
+}
+
+// When the "Cut" action is selected, deletes the selected node and copies it to the clipboard
+function clickCut(actName) {
+ if (document.getElementById(actName).className == "action") {
+ highlightSelectedAction(actName);
+ pushUndoClearRedo();
+ if (selectedNode) {
+ clipBoard = grammar.abstract.copyTree(getNodeFromAbstract(abstractTree, selectedNode, "0"));
+ document.getElementById("clipboardFrame").innerHTML = clipBoard.name + "&nbsp;:&nbsp;" + grammar.abstract.getCat(clipBoard.name);
+ abstractTree = deleteNode(abstractTree, selectedNode, "0");
+ concludeAction();
+ }
+ }
+}
+
+// Annotates the abstract tree, creates a tree from the abstract tree and selects the next meta variable
+function concludeAction() {
+ abstractTree = grammar.abstract.annotate(abstractTree, grammar.abstract.startcat);
+ myTree = treeFromAbstract(abstractTree, "0");
+ selectNextMeta();
+}
+
+// Selects the next meta variable available
+function selectNextMeta() {
+ nodeClick(selectedNode);
+ if (!abstractTree.isComplete()) {
+ var pathToNextMeta = "";
+ var nodePos = getNavPos(selectedNode);
+ while (1) {
+ if (nodePos == navigationControlString.length) { nodePos = 0; }
+ var node = getNode(navigationControlString[nodePos], myTree);
+ if (node.caption == "?") { pathToNextMeta = node.name; break; }
+ nodePos++;
+ }
+ expandAscendants(pathToNextMeta);
+ nodeClick(pathToNextMeta);
+ }
+}
+
+// Expands the ascendants of a given node
+function expandAscendants(nodeName) {
+ var nodePath = nodeName.split("-");
+ var currAscendant = nodePath.shift();
+ while (nodePath.length > 0) {
+ var node = getNode(currAscendant, myTree);
+ if (node.collapsed) {
+ myTree = expandCollapse(myTree, currAscendant);
+ }
+ currAscendant += "-" + nodePath.shift();
+ }
+}
+
+// When the "Paste" action is selected, pastes the contents of the clipboard into the selected node
+function clickPaste(actName) {
+ if (document.getElementById(actName).className == "action") {
+ highlightSelectedAction(actName);
+ pushUndoClearRedo();
+ if (selectedNode) {
+ abstractTree = insertNode(abstractTree, selectedNode, "0", grammar.abstract.copyTree(clipBoard));
+ concludeAction();
+ }
+ }
+}
+
+// When the "Delete" action is selected, deletes the selected node
+function clickDelete(actName) {
+ if (document.getElementById(actName).className == "action") {
+ highlightSelectedAction(actName);
+ pushUndoClearRedo();
+ if (selectedNode) {
+ abstractTree = deleteNode(abstractTree, selectedNode, "0");
+ abstractTree = grammar.abstract.annotate(abstractTree, grammar.abstract.startcat);
+ myTree = treeFromAbstract(abstractTree, "0");
+ nodeClick(selectedNode);
+ }
+ }
+}
+
+// When the "Replace" action is selected, replaces the selected node with another refinement
+function clickReplace(actName) {
+ if (document.getElementById(actName).className == "action") {
+ highlightSelectedAction(actName);
+ pushUndoClearRedo();
+ if (selectedNode) {
+ refPageCounter = 0;
+ abstractTree = deleteNode(abstractTree, selectedNode, "0");
+ abstractTree = grammar.abstract.annotate(abstractTree, grammar.abstract.startcat);
+ myTree = treeFromAbstract(abstractTree, "0");
+ drawTree();
+ document.getElementById("refFrame").innerHTML = showRefinements(selectedNode);
+ }
+ }
+}
+
+// When the "Wrap" action is selected, wraps around the selected node with another refinement
+function clickWrap(actName) {
+ if (document.getElementById(actName).className == "action") {
+ highlightSelectedAction(actName);
+ pushUndoClearRedo();
+ var node = getNode(selectedNode, myTree);
+ if (selectedNode) {
+ refPageCounter = 0;
+ var wrappers = showWrappers(node.caption);
+ document.getElementById("refFrame").innerHTML = wrappers;
+ if (wrappers.length <= 31) {
+ var lin = editorGrammar.concretes[selectedLanguage].linearize(editorGrammar.abstract.parseTree("ErrorMessage Available Wrapper", editorGrammar.abstract.startcat));
+ alert(lin.substring(0,1).toUpperCase().concat(lin.substring(1)));
+ document.getElementById("actFrame").innerHTML = showActions();
+ nodeClick(selectedNode);
+ }
+ }
+ }
+}
+
+// Gets the wrappers to display
+function showWrappers(nodeCaption) {
+ var nodeType = grammar.abstract.types[nodeCaption].cat;
+ var rowsPerPage = 10;
+ var availWrappers = getAvailableWrappers(nodeType, grammar, selectedNode);
+ var pages = Math.floor(availWrappers.length / rowsPerPage);
+ var upperLimit;
+ if (pages != refPageCounter) { upperLimit = (rowsPerPage * refPageCounter) + rowsPerPage; }
+ else { upperLimit = availWrappers.length; }
+ var wrappers = new Array();
+ wrappers.push("<table class='wrapper'>");
+ var keyPos = 0;
+ for (var i = (rowsPerPage * refPageCounter), j = upperLimit; i < j; i++) {
+ wrappers.push(ref_wrapToHtml("wrap", availWrappers[i][0], "wrapper", ", " + availWrappers[i][1], keyPos, ""));
+ keys["" + keyPos] = mkWrapHotKey(availWrappers[i][0], availWrappers[i][1]);
+ keyPos++;
+ }
+ if (((availWrappers.length % rowsPerPage == 0) && (pages - 1) > refPageCounter) ||
+ ((availWrappers.length % rowsPerPage != 0) && pages > refPageCounter) ) {
+ wrappers.push(ref_wrapNextRefsToHtml("nextWraps", "Next", "wrapper", "+", editorGrammar.concretes[selectedLanguage].linearize(editorGrammar.abstract.parseTree("CommandAdj Show DefSgDet Next Page", editorGrammar.abstract.startcat))));
+ keys["107"] = mkWrapNextRefsHotKey("Next");
+ }
+ if (0 < refPageCounter) {
+ wrappers.push(ref_wrapNextRefsToHtml("nextWraps", "Previous", "wrapper", "-", editorGrammar.concretes[selectedLanguage].linearize(editorGrammar.abstract.parseTree("CommandAdj Show DefSgDet Previous Page", editorGrammar.abstract.startcat))));
+ keys["109"] = mkWrapNextRefsHotKey("Previous");
+ }
+ wrappers.push("</table>");
+ return wrappers.join("");
+}
+
+// Creates the function to be used by a "numeric" hot key
+function mkWrapHotKey(wrapName, argPos) {
+ return function() { if (document.getElementById("wrap" + wrapName)) { wrapClick(wrapName, argPos); } }
+}
+
+// Creates the function to be used by a "+"/"-" hot key
+function mkWrapNextRefsHotKey(wrapName) {
+ return function() { if (document.getElementById("nextWraps" + wrapName)) { nextWrapsClick(wrapName); } }
+}
+
+// When the "Parse" action is selected, asks the user for a string and parses it
+// to generate the subnode
+function clickParse(actName) {
+ if (document.getElementById(actName).className == "action") {
+ highlightSelectedAction(actName);
+ var node = getNode(selectedNode, myTree);
+ if (selectedNode) {
+ refPageCounter = 0;
+ parseTrees = undefined;
+ var msg = editorGrammar.concretes[selectedLanguage].linearize(editorGrammar.abstract.parseTree("Command Enter IndefSgDet String_N", editorGrammar.abstract.startcat));
+ var string = prompt(msg.substring(0,1).toUpperCase().concat(msg.substring(1)),'String');
+ if (string || string == "") {
+ for (var i in grammar.concretes) {
+ parseTrees = grammar.concretes[i].parser.parseString(string, node.cat);
+ if (parseTrees.length == 1) {
+ pushUndoClearRedo();
+ abstractTree = insertNode(abstractTree, selectedNode, "0", grammar.abstract.copyTree(grammar.abstract.handleLiterals(parseTrees[0], node.cat)));
+ document.getElementById("actFrame").innerHTML = showActions();
+ document.getElementById("refFrame").innerHTML = "";
+ clearHotKeys();
+ concludeAction();
+ return false;
+ } else if (parseTrees.length > 1) {
+ document.getElementById("refFrame").innerHTML = showTrees();
+ return false;
+ }
+ }
+ } else { nodeClick(selectedNode); return false; }
+ var lin = editorGrammar.concretes[selectedLanguage].linearize(editorGrammar.abstract.parseTree("ErrorMessage Available Tree", editorGrammar.abstract.startcat));
+ alert(lin.substring(0,1).toUpperCase().concat(lin.substring(1)));
+ }
+ nodeClick(selectedNode);
+ }
+}
+
+// Displays the parse trees in the refinements panel
+function showTrees() {
+ var rowsPerPage = 10;
+ var pages = Math.floor(parseTrees.length / rowsPerPage);
+ var upperLimit;
+ if (pages != refPageCounter) { upperLimit = (rowsPerPage * refPageCounter) + rowsPerPage; }
+ else { upperLimit = parseTrees.length; }
+ var htmlTrees = new Array();
+ htmlTrees.push("<table class='tree'>");
+ var keyPos = 0;
+ for (var i = (rowsPerPage * refPageCounter), j = upperLimit; i < j; i++) {
+ htmlTrees.push(treeToHtml(i, keyPos, ""));
+ keys["" + keyPos] = mkTreeHotKey(i, keyPos);
+ keyPos++;
+ }
+ if (((parseTrees.length % rowsPerPage == 0) && (pages - 1) > refPageCounter) ||
+ ((parseTrees.length % rowsPerPage != 0) && pages > refPageCounter) ) {
+ htmlTrees.push(ref_wrapNextRefsToHtml("nextTrees", "Next", "tree", "+", editorGrammar.concretes[selectedLanguage].linearize(editorGrammar.abstract.parseTree("CommandAdj Show DefSgDet Next Page", editorGrammar.abstract.startcat))));
+ keys["107"] = mkTreeNextRefsHotKey("Next");
+ }
+ if (refPageCounter > 0) {
+ htmlTrees.push(ref_wrapNextRefsToHtml("nextTrees", "Previous", "tree", "-", editorGrammar.concretes[selectedLanguage].linearize(editorGrammar.abstract.parseTree("CommandAdj Show DefSgDet Previous Page", editorGrammar.abstract.startcat))));
+ keys["109"] = mkTreeNextRefsHotKey("Previous");
+ }
+ htmlTrees.push("</table>");
+ return htmlTrees.join("");
+}
+
+// Creates an HTML representation of a parse Tree to be shown in the refinements panel
+function treeToHtml(i, hotKeyPos, caption) {
+ var htmlTree = new Array();
+ htmlTree.push("<tr id='tree", hotKeyPos, "' class='tree' onclick='treeClick(", i, ")'><td class='tree'>");
+ if (caption) { htmlTree.push(editorGrammar.concretes[selectedLanguage].linearize(editorGrammar.abstract.parseTree(caption, editorGrammar.abstract.startcat))); }
+ else { htmlTree.push(parseTrees[i].show()); }
+ htmlTree.push("</td><td class='hotKey'>(", hotKeyPos, ")</td></tr>");
+ return htmlTree.join("");
+}
+
+// Creates the function to be used by a "numeric" hot key
+function mkTreeHotKey(i, keyPos) {
+ return function() { if (document.getElementById("tree" + keyPos)) { treeClick(i); } }
+}
+
+// Creates the function to be used by a "+"/"-" hot key
+function mkTreeNextRefsHotKey(treeName) {
+ return function() { if (document.getElementById("nextTrees" + treeName)) { nextTreesClick(treeName); } }
+}
+
+
+// When the "RandomNode" action is selected, refines the node at random
+function clickRandomNode(actName) {
+ if (document.getElementById(actName).className == "action") {
+ highlightSelectedAction(actName);
+ pushUndoClearRedo();
+ if (selectedNode) {
+ var tempTree = grammar.abstract.copyTree(abstractTree);
+ abstractTree = insertNode(tempTree, selectedNode, "0", grammar.abstract.copyTree(fillSubTree(grammar.abstract.copyTree(getNodeFromAbstract(abstractTree, selectedNode, "0")), grammar)));
+ concludeAction();
+ }
+ }
+}
+
+// When the "RandomTree" action is selected, refines the tree at random
+function clickRandomTree(actName) {
+ if (document.getElementById(actName).className == "action") {
+ highlightSelectedAction(actName);
+ pushUndoClearRedo();
+ abstractTree = grammar.abstract.copyTree(fillSubTree(abstractTree, grammar));
+ concludeAction();
+ }
+}
+
+// If a node is selected and is of type meta, it refines the node with a type refName
+function refClick(refName) {
+ if (selectedNode) {
+ if (refName == "genRefRandom") {
+ var refs = getAvailableRefinements(selectedNode, abstractTree, grammar);
+ refName = refs[Math.floor(refs.length * Math.random())];
+ }
+ abstractTree = refineAbstractTree(abstractTree, selectedNode, "0", refName);
+ document.getElementById("actFrame").innerHTML = showActions();
+ document.getElementById("refFrame").innerHTML = "";
+ clearHotKeys();
+ concludeAction();
+ }
+}
+
+// Creates a tree from an abstract tree
+function treeFromAbstract(abstractNode, name) {
+ var node = new treeNode(name, abstractNode.name);
+ if (node.caption == "?") {
+ node.cat = abstractNode.type; }
+ else {
+ if (grammar.abstract.types[node.caption]) {
+ node.cat = grammar.abstract.getCat(node.caption);
+ } else {
+ node.cat = node.caption.substring(0, node.caption.indexOf("_"));
+ grammar.abstract.addType(node.caption, [], node.cat);
+ var linStr = undefined;
+ if (node.cat == "String") {
+ linStr = node.caption.substring(node.caption.indexOf("\"") + 1, node.caption.length - 1);
+ } else {
+ linStr = node.caption.substring(node.caption.lastIndexOf("_") + 1)
+ }
+ for (var i in grammar.concretes) {
+ grammar.concretes[i].addRule(node.caption, function(cs){ return new Arr(new Str(linStr));});
+ }
+ }
+ }
+ if (wasCollapsed(node.name)) { node.collapsed = true; }
+ for (var i = 0, j = abstractNode.args.length; i < j; i++) {
+ node.addChild(i, treeFromAbstract(abstractNode.args[i], name + "-" + i));
+ }
+ return node
+}
+
+// Wraps a refinement around a node
+function wrapClick(wrapName, argPos) {
+ if (selectedNode) {
+ var tempNode = createRefinement(wrapName);
+ tempNode.setArg(argPos, grammar.abstract.copyTree(getNodeFromAbstract(abstractTree, selectedNode, "0")));
+ abstractTree = insertNode(abstractTree, selectedNode, "0", tempNode);
+ var cat = grammar.abstract.getCat(tempNode.name);
+ if (selectedNode == "0" && cat != grammar.abstract.startcat) {
+ grammar.abstract.startcat = cat;
+ }
+ document.getElementById("actFrame").innerHTML = showActions();
+ document.getElementById("refFrame").innerHTML = "";
+ clearHotKeys();
+ concludeAction();
+ }
+}
+
+// Wraps a refinement around a node
+function treeClick(i) {
+ if (selectedNode) {
+ pushUndoClearRedo();
+ var node = getNode(selectedNode, myTree);
+ var tempNode = grammar.abstract.copyTree(grammar.abstract.handleLiterals(parseTrees[i], node.cat));
+ abstractTree = insertNode(abstractTree, selectedNode, "0", tempNode);
+ document.getElementById("actFrame").innerHTML = showActions();
+ document.getElementById("refFrame").innerHTML = "";
+ clearHotKeys();
+ concludeAction();
+ }
+}
+
+// Handler for the escape key
+function clickEsc() {
+ if ((document.getElementById("actRefine").className == "selected" ||
+ document.getElementById("actReplace").className == "selected" ||
+ document.getElementById("actWrap").className == "selected" ||
+ document.getElementById("actParse").className == "selected") && undoArray.length) {
+ var prevState = undoArray.pop();
+ selectedNode = prevState.selectedNode;
+ abstractTree = grammar.abstract.copyTree(prevState.tree);
+ collapseBuffer = prevState.collapseBuffer;
+ abstractTree = grammar.abstract.annotate(abstractTree, grammar.abstract.startcat);
+ myTree = treeFromAbstract(abstractTree, "0");
+ document.getElementById("actFrame").innerHTML = showActions();
+ if (selectedNode) { nodeClick(selectedNode) }
+ }
+}
+
+// If there are over ten refinements available shows only the selected nine
+function nextRefsClick(refName) {
+ if (refName == "Next") { refPageCounter++; } else { refPageCounter--; }
+ clearHotKeys();
+ document.getElementById("refFrame").innerHTML = showRefinements(selectedNode);
+}
+
+// If there are over ten wrappers available shows only the selected nine
+function nextWrapsClick(wrapName) {
+ if (wrapName == "Next") { refPageCounter++; } else { refPageCounter--; }
+ clearHotKeys();
+ var node = getNode(selectedNode, myTree);
+ document.getElementById("refFrame").innerHTML = showWrappers(node.caption);
+}
+
+// If there are over ten parse trees available shows only the selected nine
+function nextTreesClick(treeName) {
+ if (treeName == "Next") { refPageCounter++; } else { refPageCounter--; }
+ clearHotKeys();
+ document.getElementById("refFrame").innerHTML = showTrees();
+}
+
+/* -------------------------------------------------------------------------- */
+/* ---------- GUI independent functions to handle syntax editing ---------- */
+/* -------------------------------------------------------------------------- */
+
+// Gets the node rooted at the indicated path (route) in the tree absNode
+function getNodeFromAbstract(absNode, route, currRoute) {
+ if (route == currRoute) {
+ return absNode;
+ }
+ else {
+ for (var i = 0, j = absNode.args.length; i < j; i++) {
+ var found = getNodeFromAbstract(absNode.args[i], route, currRoute + "-" + i);
+ if (found) { return found; }
+ }
+ }
+}
+
+// Gets the first metavariable from the abstract tree rooted at the path route
+function getNextMetaFromAbstract(node, route) {
+ if (node.isMeta()) { return route; }
+ for (var i = 0, j = node.args.length; i < j; i++) {
+ var found = getNextMetaFromAbstract(node.args[i], route + "-" + i);
+ if (found) { return found; }
+ }
+}
+
+// Inserts the node into the abstract tree absNode at the path route
+function insertNode(absNode, route, currRoute, node) {
+ if (route == currRoute) {
+ return node;
+ }
+ else {
+ for (var i = 0, j = absNode.args.length; i < j; i++) {
+ absNode.setArg(i, insertNode(absNode.args[i], route, currRoute + "-" + i, node));
+ }
+ return absNode;
+ }
+}
+
+// Deletes the node rooted at the path route from the abstract tree absNode
+function deleteNode(absNode, route, currRoute) {
+ if (route == currRoute) {
+ return new Fun("?");
+ }
+ else {
+ for (var i = 0, j = absNode.args.length; i < j; i++) {
+ absNode.setArg(i, deleteNode(absNode.args[i], route, currRoute + "-" + i));
+ }
+ return absNode;
+ }
+}
+
+// Gets the available refinements for the node nodeName, which is in the tree
+// abstractTree, from those found in the grammar.
+function getAvailableRefinements(nodeName, abstractTree, grammar) {
+ var node = getNodeFromAbstract(abstractTree, nodeName, "0");
+ var metaType = node.type;
+ var refinements = new Array();
+ for (var fun in grammar.abstract.types) {
+ if (grammar.abstract.types[fun].cat == metaType) {
+ refinements[refinements.length] = fun;
+ }
+ }
+ return refinements;
+}
+
+// It refines the node rooted at the path route in the abstract tree absNode
+// with the refinement refName. Returns the refined abstract tree.
+function refineAbstractTree(absNode, route, currRoute, refName) {
+ if (route == currRoute && absNode.isMeta()) {
+ return createRefinement(refName);
+ }
+ else {
+ for (var i = 0, j = absNode.args.length; i < j; i++) {
+ absNode.setArg(i, refineAbstractTree(absNode.args[i], route, currRoute + "-" + i, refName));
+ }
+ return absNode;
+ }
+}
+
+// Creates a node of type refName object with the appropriate number of arguments
+function createRefinement(refName) {
+ var newRef = new Fun(refName);
+ for (var i = 0, j = grammar.abstract.types[refName].args.length; i < j; i++) {
+ newRef.setArg(i, new Fun("?"));
+ }
+ return newRef;
+}
+
+// Gets the available wrappers for a node of type nodeType found in the grammar
+function getAvailableWrappers(nodeType, grammar, top) {
+ var wrappers = new Array();
+ for (var fun in grammar.abstract.types) {
+ for (var i = 0, j = grammar.abstract.types[fun].args.length; i < j; i++) {
+ if (top != "0") {
+ if (grammar.abstract.types[fun].args[i] == nodeType && grammar.abstract.types[fun].cat == nodeType) {
+ wrappers[wrappers.length] = new Array(fun, i);
+ break;
+ }
+ } else {
+ if (grammar.abstract.types[fun].args[i] == nodeType) {
+ wrappers[wrappers.length] = new Array(fun, i);
+ break;
+ }
+ }
+ }
+ }
+ return wrappers;
+}
+
+// Instantiates metavariables found in the tree abstractTree with refinements
+// selected at random from those found in the grammar
+function fillSubTree(abstractTree, grammar) {
+ while (!abstractTree.isComplete()) {
+ var nodeToRefine = getNextMetaFromAbstract(abstractTree, "0");
+ if (nodeToRefine) {
+ var refs = getAvailableRefinements(nodeToRefine, abstractTree, grammar);
+ if (refs.length == 0) {
+ var node = getNodeFromAbstract(abstractTree, nodeToRefine, "0");
+ if (node.type == "String" || node.type == "Int" || node.type == "Float") {
+ var newType = undefined;
+ var newTypeCat = node.type + "_Literal_";
+ switch(node.type)
+ {
+ case "String":
+ newType = "AutoString";
+ break;
+ case "Int":
+ newType = "8";
+ break;
+ case "Float":
+ newType = "8.0";
+ break;
+ }
+ if (node.type == "String") {
+ newTypeCat += "\"" + newType + "\"";
+ } else {
+ newTypeCat += newType;
+ }
+ if (!grammar.abstract.types[newTypeCat]) {
+ grammar.abstract.addType(newTypeCat, [], node.type);
+ for (var i in grammar.concretes) {
+ grammar.concretes[i].addRule(newTypeCat, function(cs){ return new Arr(new Str(newType));});
+ }
+ }
+ node.name = newTypeCat;
+ abstractTree = insertNode(abstractTree, nodeToRefine, "0", node);
+ abstractTree = grammar.abstract.annotate(abstractTree, grammar.abstract.startcat);
+ }
+ }
+ else {
+ var selectedRef = refs[Math.floor(refs.length * Math.random())];
+ abstractTree = refineAbstractTree(abstractTree, nodeToRefine, "0", selectedRef);
+ abstractTree = grammar.abstract.annotate(abstractTree, grammar.abstract.startcat);
+ }
+ }
+ }
+ return abstractTree;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2026-05-20 23:46:35 +0000