simple translator: Replaced 'GF Robust Parser' with 'GF Wide Coverage Translation'

The interface to the wide coverage translation is in js/gftranslate.js
and it assumes that the grammar is installed on the cloud server
as /robust/Translate8.pgf.

The list of supported languages is hardwired in gftranslate.js, since
there is no support for obtaining this info from the C run-time system
at the moment.

src/www/js/gftranslate.js

@@ -0,0 +1,34 @@
+
+/* --- GF wide coverage translation interface ------------------------------- */
+
+var gftranslate = {}
+
+gftranslate.jsonurl="/robust/Translate8.pgf"
+gftranslate.grammar="Translate" // the name of the grammar
+gftranslate.languages="Bul Chi Eng Fin Fre Ger Hin Swe".split(" ")
+                    // hardwired for now
+
+gftranslate.call=function(querystring,cont) {
+    http_get_json(gftranslate.jsonurl+querystring,cont)
+}
+
+// Translate a sentence to the given target language
+gftranslate.translate=function(source,from,to,cont) {
+    var encsrc=encodeURIComponent(source)
+    var g=gftranslate.grammar
+    function extract(result) {
+	cont(result[0].translations[0].linearizations[0].text)
+    }
+    if(encsrc.length<200) // match limit in runtime/c/utils/pgf-server.c
+	gftranslate.call("?command=c-translate&input="+encsrc
+		      +"&from="+g+from+"&to="+g+to+"&limit=1",extract)
+    else cont("[GF robust parser: sentence too long]")
+}
+
+// Get functions to test which source and target langauges are supported
+gftranslate.get_support=function(cont) {
+    if(!gftranslate.targets) gftranslate.targets=toSet(gftranslate.languages)
+    function ssupport(code) { return gftranslate.targets[code] }
+    function tsupport(code) { return gftranslate.targets[code] }
+    cont(ssupport,tsupport)
+}

src/www/translator/index.html

@@ -61,7 +61,7 @@
 	    <tr><td><span onclick="">Default translation method</span>
 	      <dl id=methods>
 		<dt><label><input name=method value=Manual type=radio onchange="translator.change(this)">Manual</label>
-		<dt><label><input name=method value=GFRobust type=radio onchange="translator.change(this)">GF Robust Parser</label>
+		<dt><label><input name=method value=GFRobust type=radio onchange="translator.change(this)">GF Wide Coverage Translation</label>
 	      </dl>
 	  </table>
 	<dt><label><input name=cloud type=checkbox onchange="translator.change(this)"> Save in the cloud</label>
@@ -78,14 +78,14 @@
 </div>
 <hr>
 <div class=modtime><small>HMTL
-<!-- hhmts start -->Last modified: Fri Apr 12 17:03:43 CEST 2013 <!-- hhmts end -->
+<!-- hhmts start -->Last modified: Tue Jan 21 16:54:12 CET 2014 <!-- hhmts end -->
 </small></div>
 <a href="about.html">About</a>
 
 <script type="text/JavaScript" src="../js/grammar_manager.js"></script>
 <script type="text/javascript" src="../js/support.js"></script>
 <script type="text/javascript" src="../js/pgf_online.js"></script>
-<script type="text/javascript" src="../js/gfrobust.js"></script>
+<script type="text/javascript" src="../js/gftranslate.js"></script>
 <script type="text/javascript" src="../js/localstorage.js"></script>
 <script type="text/javascript" src="../gfse/localstorage.js"></script>
 <script type="text/javascript" src="../gfse/cloud2.js"></script>

src/www/translator/translator.js

@@ -118,7 +118,7 @@ Translator.prototype.update_language_menus=function() {
 	mark_menus(yes,yes)
 	break;
     case "GFRobust":
-	if(window.gfrobust) gfrobust.get_support(mark_menus)
+	if(window.gftranslate) gftranslate.get_support(mark_menus)
 	else mark_menus(no,no)
 	break;
     case "Apertium":
@@ -217,9 +217,9 @@ Translator.prototype.update_translation=function(i) {
 		//console.log(translate_output)
 		upd2(translate_output,punct)
 	    }
-	    gfrobust.translate(source,o.to,upd1)
+	    gftranslate.translate(source,o.from,o.to,upd1)
 	}
-	if(!window.gfrobust)
+	if(!window.gftranslate)
 		upd3s("[GF robust parser is not available]")
 	else {
 	    function check_support(ssupport,tsupport) {
@@ -243,7 +243,7 @@ Translator.prototype.update_translation=function(i) {
 		    upd3s("["+msg+"]")
 		}
 	    }
-	    gfrobust.get_support(check_support)
+	    gftranslate.get_support(check_support)
 	}
     }
 
@@ -937,7 +937,7 @@ Translator.prototype.draw_segment_given_target=function(s,target,i) {
 	}
 	var autoB=radiobutton("method","Default","Default",change)
 	var manualB=radiobutton("method","Manual","Manual",change)
-	var gfrobustB=radiobutton("method","GFRobust","GF Robust Parser",change)
+	var gfrobustB=radiobutton("method","GFRobust","GF Wide Coverage Translation",change)
 	var dl=wrap_class("dl","popupmenu",
 			  [dt(autoB),
 			   dt([manualB,text(" "),draw_translation(o)]),
@@ -969,17 +969,19 @@ Translator.prototype.draw_segment_given_target=function(s,target,i) {
     var source=wrap_class("td","source",txt)
     if(!t.document.globalsight)
 	txt.onclick=function() { t.edit_source(source,i); }
-    if(window.gfrobust && segment_method(t.document,s)=="GFRobust") {
+    /*
+    if(window.gftranslate && segment_method(t.document,s)=="GFRobust") {
 	function add_button(src) {
 	    var btn=img("../minibar/tree-btn.png")
 	    btn.className="right"
-	    btn.other=gfrobust.parsetree_url(src)
+	    btn.other=gftranslate.parsetree_url(src)
 	    btn.title="Click to toggle parse tree view."
 	    btn.onclick=function() { toggle_img(btn) }
 	    source.appendChild(btn)
 	}
 	lexgfrobust(s.source,add_button)
     }
+    */
     var options=wrap_class("td","options",draw_options())
 
     return node("tr",{"class":"segment",id:i},[actions,source,options,target])