gf-3.6: src/runtime/javascript/gfjseditor.js
//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 (document.getElementById("actParse").className == "selected" && charCode != 27)
return true;
if (keys[String.fromCharCode(charCode).toUpperCase()] &&
!event.ctrlKey && !event.altKey && !event.shiftKey && !event.metaKey) {
keys[String.fromCharCode(charCode).toUpperCase()]();
return false;
}
else if (keys["" + charCode] &&
!event.ctrlKey && !event.altKey && !event.shiftKey && !event.metaKey) {
keys["" + charCode]();
return false;
}
else if (charCode >= "96" && charCode <= "105" &&
!event.ctrlKey && !event.altKey && !event.shiftKey && !event.metaKey) {
keys["" + (charCode - 96)]();
return false;
}
}
return true;
}
// 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(" : ", 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("");
}
// Linearizes and displays the abstract tree
function drawEditFrame() {
var frame = document.getElementById("conFrame");
frame.innerHTML = getEditFrame();
}
// Linearizes the abstract tree and returns it in HTML form
function getEditFrame() {
var editFrame = new Array();
for (var i in grammar.concretes) {
editFrame.push("<h4>", i, "</h4>");
editFrame.push("<p id='line", i, "'>");
if (abstractTree.isMeta()) {
editFrame.push("<span class='edit' contenteditable=true onkeydown='return editFrameKeyDown(this,\"",i,"\",event)'> ");
isLastSelected = true;
} else {
var tokens = grammar.concretes[i].tagAndLinearize(abstractTree);
var isLastSelected = false;
for (var j = 0, k = tokens.length; j < k; j++) {
var token = tokens[j];
var node = getNode(token.tag, myTree);
if (node.name.substr(0, selectedNode.length) == selectedNode) {
if (!isLastSelected) {
editFrame.push("<span class='edit' contenteditable=true onkeydown='return editFrameKeyDown(this,\"",i,"\",event)'>");
isLastSelected = true;
}
if (token == "&-")
editFrame.push("<br/>");
else
editFrame.push(token+" ");
} else {
if (isLastSelected) {
editFrame.push("</span>");
isLastSelected = false;
}
if (token == "&-")
editFrame.push("<br/>");
else
editFrame.push("<span id='", token.tag, "' class='normal'>", token, "</span>");
}
}
}
if (isLastSelected) {
editFrame.push("</span>");
isLastSelected = false;
}
editFrame.push("</p>");
}
editFrame.push("<h4>Abstract</h4>");
editFrame.push("<p id='lineAbstract'>", createLinearizedFromAbstract(myTree, "0"), "</p>");
return editFrame.join("");
}
function editFrameKeyDown(me,lang,event) {
event = (event) ? event : ((window.event) ? event : null);
if (event) {
var charCode = (event.charCode) ? event.charCode : ((event.which) ? event.which : event.keyCode);
if (charCode == 13) {
refPageCounter = 0;
parseTrees = undefined;
var string = me.innerText;
if (string || string == "") {
var node = getNode(selectedNode, myTree);
switch (node.cat) {
case "String": parseTrees = [new Fun('"'+string+'"')]; break;
case "Int": if (isNaN(string) || (string && string.indexOf(".") != -1))
parseTrees = new Array();
else
parseTrees = [new Fun(string)];
break;
case "Float": if (isNaN(string))
parseTrees = new Array();
else
parseTrees = [new Fun(string)];
break;
default: parseTrees = grammar.concretes[lang].parseString(string, node.cat); break;
}
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();
} else if (parseTrees.length > 1) {
document.getElementById("refFrame").innerHTML = showTrees();
}
}
return false;
}
}
return true;
}
// 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, "\");'>", 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(" ", node.caption.substring(node.caption.lastIndexOf("_") + 1), " ");
} else {
linearized.push(" ", node.caption, " ");
}
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"));
}
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", "action", "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") {
if (selectedNode) {
refPageCounter = 0;
var node = getNodeFromAbstract(abstractTree, selectedNode, "0");
if (node.type == "String" || node.type == "Int" || node.type == "Float") {
clickParse("actParse");
} else {
highlightSelectedAction(actName);
pushUndoClearRedo();
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, " : ", 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], " -> ");
}
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 + " : " + 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 + " : " + 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) {
pushUndoClearRedo();
drawEditFrame();
}
}
}
// 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;
}