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almost functional version of the javascript runtime

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kr.angelov
2013-08-29 20:36:06 +00:00
parent 010e97fc47
commit 9134df05bb
5 changed files with 250 additions and 244 deletions
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2
src/runtime/javascript/editor.html
View File

@@ -10,7 +10,7 @@
<script type="text/javascript" src="gfjseditor.js"></script>
<title>Web-based Syntax Editor</title>
</head>
<body onload="mkEditor('editor', Food)" onkeydown="return hotKeys(event)">
<body onload="mkEditor('editor', Foods)" onkeydown="return hotKeys(event)">
<div id="editor">
</div>
</body>

2
src/runtime/javascript/editorGrammar.js
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File diff suppressed because one or more lines are too long

17
src/runtime/javascript/gfjseditor.js
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@@ -222,10 +222,10 @@ function getTree(tree, level) {
htmlTree.push("<li>");
if (tree.hasChildren()) {
htmlTree.push("<img class='tree-menu'");
if (tree.collapsed) {
if (tree.collapsed)
htmlTree.push(" src='plus.png'");
}
else { htmlTree.push(" src='minus.png'"); }
else
htmlTree.push(" src='minus.png'");
htmlTree.push(" onclick='signClick(\"", tree.name, "\", \"", tree.caption, "\")' />");
}
else {
@@ -359,7 +359,7 @@ function editFrameKeyDown(me,lang,event) {
else
parseTrees = [new Fun(string)];
break;
default: parseTrees = grammar.concretes[lang].parser.parseString(string, node.cat); break;
default: parseTrees = grammar.concretes[lang].parseString(string, node.cat); break;
}
if (parseTrees.length == 1) {
pushUndoClearRedo();
@@ -607,13 +607,8 @@ function showActions(caption) {
actions.push(createAction("Wrap", "action", "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;
}
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"));
}

471
src/runtime/javascript/gflib.js
View File

@@ -20,20 +20,18 @@ GFGrammar.prototype.translate = function (input, fromLang, toLang) {
toConcs[toLang] = this.concretes[toLang];
}
for (var c1 in fromConcs) {
var p = this.concretes[c1].parser;
if (p) {
var trees = p.parseString(input, this.abstract.startcat);
if (trees.length > 0) {
outputs[c1] = new Array();
for (var i in trees) {
outputs[c1][i] = new Object();
for (var c2 in toConcs) {
outputs[c1][i][c2] = this.concretes[c2].linearize(trees[i]);
}
var concrete = this.concretes[c1];
var trees = concrete.parseString(input, this.abstract.startcat);
if (trees.length > 0) {
outputs[c1] = new Array();
for (var i in trees) {
outputs[c1][i] = new Object();
for (var c2 in toConcs) {
outputs[c1][i][c2] = this.concretes[c2].linearize(trees[i]);
}
}
}
}
}
return outputs;
}
@@ -50,7 +48,10 @@ String.prototype.setTag = function (tag) { this.tag = tag; };
/* Abstract syntax trees */
function Fun(name) {
this.name = name;
this.args = copy_arguments(arguments, 1);
this.args = new Array();
for (var i = 1; i < arguments.length; i++) {
this.args[i-1] = arguments[i];
}
}
Fun.prototype.print = function () { return this.show(0); } ;
Fun.prototype.show = function (prec) {
@@ -98,7 +99,18 @@ Fun.prototype.isComplete = function() {
}
} ;
Fun.prototype.isLiteral = function() {
return (/^[\"\d]/).test(this.name);
return (/^[\"\-\d]/).test(this.name);
} ;
Fun.prototype.isString = function() {
return (/^\".*\"$/).test(this.name);
} ;
Fun.prototype.isInt = function() {
return (/^\-?\d+$/).test(this.name);
} ;
Fun.prototype.isFloat = function() {
return (/^\-?\d*(\.\d*)?$/).test(this.name) &&
this.name != "." &&
this.name != "-.";
} ;
Fun.prototype.isEqual = function(obj) {
if (this.name != obj.name)
@@ -112,93 +124,6 @@ Fun.prototype.isEqual = function(obj) {
return true;
}
/* Concrete syntax terms */
function Arr() { this.arr = copy_arguments(arguments, 0); }
Arr.prototype.tokens = function() { return this.arr[0].tokens(); };
Arr.prototype.sel = function(i) { return this.arr[i.toIndex()]; };
Arr.prototype.setTag = function(tag) {
for (var i = 0, j = this.arr.length; i < j; i++) {
this.arr[i].setTag(tag);
}
};
function Seq() { this.seq = copy_arguments(arguments, 0); }
Seq.prototype.tokens = function() {
var xs = new Array();
for (var i in this.seq) {
var ys = this.seq[i].tokens();
for (var j in ys) {
xs.push(ys[j]);
}
}
return xs;
};
Seq.prototype.setTag = function(tag) {
for (var i = 0, j = this.seq.length; i < j; i++) {
this.seq[i].setTag(tag);
}
};
function Variants() { this.variants = copy_arguments(arguments, 0); }
Variants.prototype.tokens = function() { return this.variants[0].tokens(); };
Variants.prototype.sel = function(i) { return this.variants[0].sel(i); };
Variants.prototype.toIndex = function() { return this.variants[0].toIndex(); };
Variants.prototype.setTag = function(tag) {
for (var i = 0, j = this.variants.length; i < j; i++) {
this.variants[i].setTag(tag);
}
};
function Rp(index,value) { this.index = index; this.value = value; }
Rp.prototype.tokens = function() { return new Array(this.index.tokens()); };
Rp.prototype.sel = function(i) { return this.value.arr[i.toIndex()]; };
Rp.prototype.toIndex = function() { return this.index.toIndex(); };
Rp.prototype.setTag = function(tag) { this.index.setTag(tag) };
function Suffix(prefix,suffix) {
this.prefix = new String(prefix);
if (prefix.tag) { this.prefix.tag = prefix.tag; }
this.suffix = suffix;
};
Suffix.prototype.tokens = function() {
var xs = this.suffix.tokens();
for (var i in xs) {
xs[i] = new String(this.prefix + xs[i]);
xs[i].setTag(this.prefix.tag);
}
return xs;
};
Suffix.prototype.sel = function(i) { return new Suffix(this.prefix, this.suffix.sel(i)); };
Suffix.prototype.setTag = function(tag) { if (!this.prefix.tag) { this.prefix.setTag(tag); } };
function Meta() { }
Meta.prototype.tokens = function() {
var newString = new String("?");
newString.setTag(this.tag);
return new Array(newString);
};
Meta.prototype.toIndex = function() { return 0; };
Meta.prototype.sel = function(i) { return this; };
Meta.prototype.setTag = function(tag) { if (!this.tag) { this.tag = tag; } };
function Str(value) { this.value = value; }
Str.prototype.tokens = function() {
var newString = new String(this.value);
newString.setTag(this.tag);
return new Array(newString);
};
Str.prototype.setTag = function(tag) { if (!this.tag) { this.tag = tag; } };
function Int(value) { this.value = value; }
Int.prototype.tokens = function() {
var newString = new String(this.value.toString());
newString.setTag(this.tag);
return new Array(newString);
};
Int.prototype.toIndex = function() { return this.value; };
Int.prototype.setTag = function(tag) { if (!this.tag) { this.tag = tag; } };
/* Type annotation */
function GFAbstract(startcat, types) {
@@ -284,47 +209,166 @@ function Type(args, cat) {
/* Linearization */
function GFConcrete(flags, rules, parser) {
this.flags = flags;
this.rules = rules;
if (parser) {
this.parser = parser;
} else {
this.parser = undefined;
}
function GFConcrete(flags, productions, functions, sequences, startCats, totalFIds) {
this.flags = flags;
this.productions = productions;
this.functions = functions;
this.sequences = sequences;
this.startCats = startCats;
this.totalFIds = totalFIds;
this.pproductions = productions;
this.lproductions = new Object();
for (var fid in productions) {
for (var i in productions[fid]) {
var rule = productions[fid][i];
if (rule.id == "Apply") {
var fun = this.functions[rule.fun];
var lproductions = this.lproductions;
rule.fun = fun;
var register = function (args, key, i) {
if (i < args.length) {
var c = 0;
var arg = args[i].fid;
for (var k in productions[arg]) {
var rule = productions[arg][k];
if (rule.id == "Coerce") {
register(args,key + "_" + rule.arg,i+1);
c++;
}
}
if (c == 0)
register(args,key + "_" + arg,i+1);
} else {
var set = lproductions[key];
if (set == null) {
set = new Array();
lproductions[key] = set;
}
set.push({fun: fun, fid: fid});
}
}
register(rule.args,rule.fun.name,0);
}
}
}
for (var i in functions) {
var fun = functions[i];
for (var j in fun.lins) {
fun.lins[j] = sequences[fun.lins[j]];
}
}
}
GFConcrete.prototype.rule = function (name, cs) {
var r = this.rules[name];
if (r) {
return this.rules[name](cs);
GFConcrete.prototype.linearizeSyms = function (tree, tag) {
var res = new Array();
if (tree.isString()) {
var sym = new SymKS(tree.name);
sym.tag = tag;
res.push({fid: -1, table: [[sym]]});
} else if (tree.isInt()) {
var sym = new SymKS(tree.name);
sym.tag = tag;
res.push({fid: -2, table: [[sym]]});
} else if (tree.isFloat()) {
var sym = new SymKS(tree.name);
sym.tag = tag;
res.push({fid: -3, table: [[sym]]});
} else if (tree.isMeta()) {
// TODO: Use lindef here
var cat = this.startCats[tree.type];
var sym = new SymKS(tree.name);
sym.tag = tag;
for (var fid = cat.s; fid <= cat.e; fid++) {
res.push({fid: fid, table: [[sym]]});
}
} else {
window.alert("Missing rule " + name);
var cs = new Array();
for (var i in tree.args) {
// TODO: we should handle the case for nondeterministic linearization
cs.push(this.linearizeSyms(tree.args[i],tag + "-" + i)[0]);
}
var key = tree.name;
for (var i in cs) {
key = key + "_" + cs[i].fid
}
for (var i in this.lproductions[key]) {
var rule = this.lproductions[key][i];
var row = {fid: rule.fid, table: new Array()};
for (var j in rule.fun.lins) {
var lin = rule.fun.lins[j];
var toks = new Array();
row.table[j] = toks;
for (var k in lin) {
var sym = lin[k];
switch (sym.id) {
case "Arg":
case "Lit":
var ts = cs[sym.i].table[sym.label];
for (var l in ts) {
toks.push(ts[l]);
}
break;
case "KS":
case "KP":
toks.push(this.tagIt(sym,tag));
break;
}
}
}
res.push(row);
}
}
return res;
};
GFConcrete.prototype.addRule = function (name, f) { this.rules[name] = f; };
GFConcrete.prototype.lindef = function (cat, v) { return this.rules[cat]([new Str(v)]); } ;
GFConcrete.prototype.linearize = function (tree) {
return this.unlex(this.linearizeToTerm(tree).tokens());
GFConcrete.prototype.syms2toks = function (syms) {
var ts = new Array();
for (var i in syms) {
var sym = syms[i];
switch (sym.id) {
case "KS":
for (var j in sym.tokens) {
ts.push(this.tagIt(sym.tokens[j],sym.tag));
}
break;
case "KP":
for (var j in sym.tokens) {
ts.push(this.tagIt(sym.tokens[j],sym.tag));
}
break;
}
}
return ts;
};
GFConcrete.prototype.linearizeToTerm = function (tree) {
if (tree.isMeta()) {
if (isUndefined(tree.type)) {
return new Meta();
} else {
return this.lindef(tree.type, tree.name);
}
} else {
var cs = new Array();
for (var i in tree.args) {
cs.push(this.linearizeToTerm(tree.args[i]));
}
if (tree.isLiteral()) {
return new Arr(new Str(tree.name));
} else {
return this.rule(tree.name, cs);
}
}
GFConcrete.prototype.linearizeAll = function (tree) {
var res = this.linearizeSyms(tree,"0");
for (var l in res) {
res[l] = this.unlex(this.syms2toks(res[l].table[0]));
}
return res;
};
GFConcrete.prototype.linearize = function (tree) {
var res = this.linearizeSyms(tree,"0");
return this.unlex(this.syms2toks(res[0].table[0]));
}
GFConcrete.prototype.tagAndLinearize = function (tree) {
var res = this.linearizeSyms(tree,"0");
return this.syms2toks(res[0].table[0]);
}
GFConcrete.prototype.unlex = function (ts) {
if (ts.length == 0) {
return "";
@@ -345,29 +389,20 @@ GFConcrete.prototype.unlex = function (ts) {
}
return s;
};
GFConcrete.prototype.tagAndLinearize = function (tree) {
return this.tagAndLinearizeToTerm(tree, "0").tokens();
};
GFConcrete.prototype.tagAndLinearizeToTerm = function (tree, route) {
if (tree.isMeta()) {
if (isUndefined(tree.type)) {
var newMeta = new Meta();
newMeta.setTag(route);
return newMeta;
} else {
var newTerm = this.lindef(tree.type, tree.name);
newTerm.setTag(route);
return newTerm;
}
} else {
var cs = new Array();
for (var i in tree.args) {
cs.push(this.tagAndLinearizeToTerm(tree.args[i], route + "-" + i));
}
var newTerm = this.rule(tree.name, cs);
newTerm.setTag(route);
return newTerm;
}
GFConcrete.prototype.tagIt = function (obj, tag) {
if (isString(obj)) {
var o = new String(obj);
o.setTag(tag);
return o;
} else {
var me = arguments.callee;
if (arguments.length == 2) {
me.prototype = obj;
var o = new me();
o.tag = tag;
return o;
}
}
};
/* Utilities */
@@ -405,42 +440,12 @@ function dumpObject (obj) {
}
}
function copy_arguments(args, start) {
var arr = new Array();
for (var i = 0; i < args.length - start; i++) {
arr[i] = args[i + start];
}
return arr;
}
/* ------------------------------------------------------------------------- */
/* -------------------------------- PARSING -------------------------------- */
/* ------------------------------------------------------------------------- */
function Parser(productions, functions, sequences, startCats, totalCats) {
this.productions = productions;
this.functions = functions;
this.sequences = sequences;
this.startCats = startCats;
this.totalCats = totalCats;
for (var fid in productions) {
for (var i in productions[fid]) {
var rule = productions[fid][i];
rule.fun = functions[rule.fun];
}
}
for (var i in functions) {
var fun = functions[i];
for (var j in fun.lins) {
fun.lins[j] = sequences[fun.lins[j]];
}
}
}
Parser.prototype.showRules = function () {
GFConcrete.prototype.showRules = function () {
var ruleStr = new Array();
ruleStr.push("");
for (var i = 0, j = this.rules.length; i < j; i++) {
@@ -448,7 +453,7 @@ Parser.prototype.showRules = function () {
}
return ruleStr.join("");
};
Parser.prototype.tokenize = function (string) {
GFConcrete.prototype.tokenize = function (string) {
var inToken = false;
var start, end;
var tokens = new Array();
@@ -484,7 +489,7 @@ Parser.prototype.tokenize = function (string) {
}
return tokens;
};
Parser.prototype.parseString = function (string, cat) {
GFConcrete.prototype.parseString = function (string, cat) {
var tokens = this.tokenize(string);
var ps = new ParseState(this, cat);
@@ -497,7 +502,7 @@ Parser.prototype.parseString = function (string, cat) {
/**
* Generate list of suggestions given an input string
*/
Parser.prototype.complete = function (input, cat) {
GFConcrete.prototype.complete = function (input, cat) {
// Parameter defaults
if (input == null) input = "";
@@ -558,19 +563,19 @@ Parser.prototype.complete = function (input, cat) {
return { 'consumed' : tokens, 'suggestions' : suggs };
}
// Rule Object Definition
// Apply Object Definition
function Rule(fun, args) {
this.id = "Rule";
function Apply(fun, args) {
this.id = "Apply";
this.fun = fun;
this.args = args;
}
Rule.prototype.show = function (cat) {
Apply.prototype.show = function (cat) {
var recStr = new Array();
recStr.push(cat, " -> ", fun.name, " [", this.args, "]");
return recStr.join("");
};
Rule.prototype.isEqual = function (obj) {
Apply.prototype.isEqual = function (obj) {
if (this.id != obj.id || this.fun != obj.fun || this.args.length != obj.args.length)
return false;
@@ -582,6 +587,12 @@ Rule.prototype.isEqual = function (obj) {
return true;
};
function PArg() {
this.fid = arguments[arguments.length-1];
if (arguments.length > 1)
this.hypos = arguments.slice(0,arguments.length-1);
}
// Coerce Object Definition
function Coerce(arg) {
@@ -618,7 +629,7 @@ Const.prototype.isEqual = function (obj) {
return true;
};
function FFun(name,lins) {
function CncFun(name,lins) {
this.name = name;
this.lins = lins;
}
@@ -626,39 +637,39 @@ function FFun(name,lins) {
// Definition of symbols present in linearization records
// Object to represent argument projections in grammar rules
function Arg(i, label) {
function SymCat(i, label) {
this.id = "Arg";
this.i = i;
this.label = label;
}
Arg.prototype.getId = function () { return this.id; };
Arg.prototype.getArgNum = function () { return this.i };
Arg.prototype.show = function () {
SymCat.prototype.getId = function () { return this.id; };
SymCat.prototype.getArgNum = function () { return this.i };
SymCat.prototype.show = function () {
var argStr = new Array();
argStr.push(this.i, this.label);
return argStr.join(".");
};
// Object to represent terminals in grammar rules
function KS() {
function SymKS() {
this.id = "KS";
this.tokens = arguments;
}
KS.prototype.getId = function () { return this.id; };
KS.prototype.show = function () {
SymKS.prototype.getId = function () { return this.id; };
SymKS.prototype.show = function () {
var terminalStr = new Array();
terminalStr.push('"', this.tokens, '"');
return terminalStr.join("");
};
// Object to represent pre in grammar rules
function KP(tokens,alts) {
function SymKP(tokens,alts) {
this.id = "KP";
this.tokens = tokens;
this.alts = alts;
}
KP.prototype.getId = function () { return this.id; };
KP.prototype.show = function () {
SymKP.prototype.getId = function () { return this.id; };
SymKP.prototype.show = function () {
var terminalStr = new Array();
terminalStr.push('"', this.tokens, '"');
return terminalStr.join("");
@@ -670,13 +681,13 @@ function Alt(tokens, prefixes) {
}
// Object to represent pre in grammar rules
function Lit(i,label) {
function SymLit(i,label) {
this.id = "Lit";
this.i = i;
this.label = label;
}
Lit.prototype.getId = function () { return this.id; };
Lit.prototype.show = function () {
SymLit.prototype.getId = function () { return this.id; };
SymLit.prototype.show = function () {
var argStr = new Array();
argStr.push(this.i, this.label);
return argStr.join(".");
@@ -729,15 +740,15 @@ Trie.prototype.isEmpty = function() {
return true;
}
function ParseState(parser, startCat) {
this.parser = parser;
function ParseState(concrete, startCat) {
this.concrete = concrete;
this.startCat = startCat;
this.items = new Trie();
this.chart = new Chart(parser);
this.chart = new Chart(concrete);
var items = new Array();
var fids = parser.startCats[startCat];
var fids = concrete.startCats[startCat];
if (fids != null) {
var fid;
for (fid = fids.s; fid <= fids.e; fid++) {
@@ -841,11 +852,11 @@ ParseState.prototype.extractTrees = function() {
);
var totalCats = this.parser.totalCats;
var totalFIds = this.concrete.totalFIds;
var forest = this.chart.forest;
function go(fid) {
if (fid < totalCats) {
if (fid < totalFIds) {
return [new Fun("?")];
} else {
var trees = new Array();
@@ -861,7 +872,7 @@ ParseState.prototype.extractTrees = function() {
var arg_ts = new Array();
for (var k in rule.args) {
arg_ix[k] = 0;
arg_ts[k] = go(rule.args[k]);
arg_ts[k] = go(rule.args[k].fid);
}
while (true) {
@@ -893,7 +904,7 @@ ParseState.prototype.extractTrees = function() {
var trees = new Array();
var fids = this.parser.startCats[this.startCat];
var fids = this.concrete.startCats[this.startCat];
if (fids != null) {
var fid0;
for (fid0 = fids.s; fid0 <= fids.e; fid0++) {
@@ -936,7 +947,7 @@ ParseState.prototype.process = function (agenda,literalCallback,tokenCallback) {
if (item.dot < lin.length) {
var sym = lin[item.dot];
switch (sym.id) {
case "Arg": var fid = item.args[sym.i];
case "Arg": var fid = item.args[sym.i].fid;
var label = sym.label;
var items = this.chart.lookupAC(fid,label);
@@ -975,7 +986,7 @@ ParseState.prototype.process = function (agenda,literalCallback,tokenCallback) {
tokenCallback(alt.tokens, pitem);
}
break;
case "Lit": var fid = item.args[sym.i];
case "Lit": var fid = item.args[sym.i].fid;
var rules = this.chart.forest[fid];
if (rules != null) {
tokenCallback(rules[0].toks, item.shiftOverTokn());
@@ -1004,7 +1015,7 @@ ParseState.prototype.process = function (agenda,literalCallback,tokenCallback) {
}
this.chart.insertPC(item.fid,item.lbl,item.offset,fid);
this.chart.forest[fid] = [new Rule(item.fun,item.args)];
this.chart.forest[fid] = [new Apply(item.fun,item.args)];
} else {
var labels = this.chart.labelsAC(fid);
if (labels != null) {
@@ -1014,7 +1025,7 @@ ParseState.prototype.process = function (agenda,literalCallback,tokenCallback) {
}
var rules = this.chart.forest[fid];
var rule = new Rule(item.fun,item.args);
var rule = new Apply(item.fun,item.args);
var isMember = false;
for (var j in rules) {
@@ -1030,16 +1041,16 @@ ParseState.prototype.process = function (agenda,literalCallback,tokenCallback) {
}
}
function Chart(parser) {
function Chart(concrete) {
this.active = new Object();
this.actives = new Array();
this.passive = new Object();
this.forest = new Object();
this.nextId = parser.totalCats;
this.nextId = concrete.totalFIds;
this.offset = 0;
for (var fid in parser.productions) {
this.forest[fid] = parser.productions[fid];
for (var fid in concrete.pproductions) {
this.forest[fid] = concrete.pproductions[fid];
}
}
Chart.prototype.lookupAC = function (fid,label) {
@@ -1096,7 +1107,7 @@ Chart.prototype.expandForest = function (fid) {
for (var i in rules0) {
var rule = rules0[i];
switch (rule.id) {
case "Rule": rules.push(rule); break;
case "Apply": rules.push(rule); break;
case "Coerce": go(forest[rule.arg]); break;
}
}
@@ -1129,9 +1140,9 @@ ActiveItem.prototype.shiftOverArg = function (i,fid) {
for (var k in this.args) {
nargs[k] = this.args[k];
}
nargs[i] = fid;
nargs[i] = new PArg(fid);
return new ActiveItem(this.offset,this.dot+1,this.fun,this.seq,nargs,this.fid,this.lbl);
}
ActiveItem.prototype.shiftOverTokn = function () {
return new ActiveItem(this.offset,this.dot+1,this.fun,this.seq,this.args,this.fid,this.lbl);
}
}

2
src/runtime/javascript/grammar.js
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