diff --git a/Frontend Angular 4/src/app/layout/matefun/codemirror/hint_words.js b/Frontend Angular 4/src/app/layout/matefun/codemirror/hint_words.js
index faac305dd8c09ae2995278c61884f3d502276193..43a436e4ac1a68c65da4c402995eba3a6fcc96c9 100644
--- a/Frontend Angular 4/src/app/layout/matefun/codemirror/hint_words.js	
+++ b/Frontend Angular 4/src/app/layout/matefun/codemirror/hint_words.js	
@@ -10,49 +10,12 @@ let EN_default_sets = [
 
 // Spanish words
 
-let ES_default_words = [
-  'red', 'sen', 'raizcuad', 'rgb', 'rect', 'circ', 'linea', 'poli', 'juntar', 'color', 'mover', 'rotar', 'escalar', 'aFig', 'linea3D', 'esfera', 'cilindro', 'cubo', 'anillo', 'juntar3D', 'color3D', 'mover3D', 'rotar3D', 'escalar3D', 'rango', 'primero', 'resto', 'A'
-]
-
-var ES_keywords = [
-  "incluir"
-  ,"conj","en"
-  ,"si", "o" 
-  ,"esVacia"
-];
-
-let ES_types = [
-  "Rojo", "Verde", "Azul", "Negro","Blanco", "Gris","Amarillo", "FigVacia", "[]"
-  ,"R", "Fig", "Color"
+let ES_functions = [
+  '-', 'red', 'sen', 'cos', 'raizcuad', 'rgb', 'rect', 'circ', 'linea', 'poli', 'juntar', 'color', 'mover', 'rotar', 'escalar', 'aFig', 'linea3D', 'esfera', 'cilindro', 'cubo', 'anillo', 'juntar3D', 'color3D', 'mover3D', 'rotar3D', 'escalar3D', 'rango', 'primero', 'resto'
 ]
 
-let ES_functions = [
-  "abs", "acos", "acosh", "all", "and", "any", "appendFile", "asTypeOf",
-  "asin", "asinh", "atan", "atan2", "atanh", "break", "catch", "ceiling",
-  "compare", "concat", "concatMap", "const", "cos", "cosh", "curry",
-  "cycle", "decodeFloat", "div", "divMod", "drop", "dropWhile", "either",
-  "elem", "encodeFloat", "enumFrom", "enumFromThen", "enumFromThenTo",
-  "enumFromTo", "error", "even", "exp", "exponent", "fail", "filter",
-  "flip", "floatDigits", "floatRadix", "floatRange", "floor", "fmap",
-  "foldl", "foldl1", "foldr", "foldr1", "fromEnum", "fromInteger",
-  "fromIntegral", "fromRational", "fst", "gcd", "getChar", "getContents",
-  "getLine", "head", "id", "init", "interact", "ioError", "isDenormalized",
-  "isIEEE", "isInfinite", "isNaN", "isNegativeZero", "iterate", "last",
-  "lcm", "length", "lex", "lines", "log", "logBase", "lookup", "map",
-  "mapM", "mapM_", "max", "maxBound", "maximum", "maybe", "min", "minBound",
-  "minimum", "mod", "negate", "not", "notElem", "null", "odd", "or",
-  "otherwise", "pi", "pred", "print", "product", "properFraction",
-  "putChar", "putStr", "putStrLn", "quot", "quotRem", "read", "readFile",
-  "readIO", "readList", "readLn", "readParen", "reads", "readsPrec",
-  "realToFrac", "recip", "rem", "repeat", "replicate", "return", "reverse",
-  "round", "scaleFloat", "scanl", "scanl1", "scanr", "scanr1", "seq",
-  "sequence", "sequence_", "show", "showChar", "showList", "showParen",
-  "showString", "shows", "showsPrec", "significand", "signum", "sin",
-  "sinh", "snd", "span", "splitAt", "sqrt", "subtract", "succ", "sum",
-  "tail", "take", "takeWhile", "tan", "tanh", "toEnum", "toInteger",
-  "toRational", "truncate", "uncurry", "undefined", "unlines", "until",
-  "unwords", "unzip", "unzip3", "userError", "words", "writeFile", "zip",
-  "zip3", "zipWith", "zipWith3"
+let ES_default_sets = [
+  'R', 'Color', 'Fig', 'A', 'Fig3D'
 ]
 
 module.exports = {
@@ -62,7 +25,10 @@ module.exports = {
   EN_functions: function() {
     return EN_functions;
   },
-  ES_words: function() {
-    return ES_default_words.concat(ES_keywords).concat(ES_types).concat(ES_functions);
- }
+  ES_default_sets: function() {
+    return ES_default_sets;
+  },
+  ES_functions: function() {
+    return ES_functions;
+  }
 }
diff --git a/Frontend Angular 4/src/app/layout/matefun/codemirror/matefun-mode-ES.js b/Frontend Angular 4/src/app/layout/matefun/codemirror/matefun-mode-ES.js
index c820e81a2ba725883a837be14ffda2ec0deae810..9be81767470a4ae36f1c1c1dad216ce0d0eab8a1 100755
--- a/Frontend Angular 4/src/app/layout/matefun/codemirror/matefun-mode-ES.js	
+++ b/Frontend Angular 4/src/app/layout/matefun/codemirror/matefun-mode-ES.js	
@@ -27,27 +27,160 @@
 
   const hintWords = require('./hint_words');
 
-  var anyWord = CodeMirror.hint.anyword;
-  CodeMirror.hint.anyword = function(cm) {
-    var cur = cm.getCursor(), token = cm.getTokenAt(cur)
-    var term, from = CodeMirror.Pos(cur.line, token.start), to = cur
-    if (token.start < cur.ch && /[\w\-\_]/.test(token.string.charAt(cur.ch - token.start - 1))) {
-      term = token.string.substr(0, cur.ch - token.start)
-    } else {
-      term = ""
-      from = cur
-    }
-    var inner = anyWord(cm, { word: /[\w$\-\_]+/ }) || {from: from, to: to, list: []};
-
-    var filtered_words = hintWords.ES_words().filter(w => w.indexOf(term) === 0);
+  var WORD = /[\w$]+/;
+
+  var SET = /conj\s+([\w\_\d]+)\s*\=/;
+  var DOM = /\:\:/;
+  var FUNS = /([\w\_\d]+)\s+\:\:/;
+  var FUN = /([\w\_\d]+)\s*\(([\,\w\_\s\d]*)\)\s*\=/;
+  var ENUMS = /conj\s+[\w\_\d]+\s*\=\s*\{(.*?)\}/;
+  var WRITING_SET = /conj\s/;
+  var WRITING_COMMENT = /\{\-/;
+
+  var RANGE = 500;
+
+  CodeMirror.registerHelper("hint", "anyword", function(editor, options) {
+    var word = options && options.word || WORD;
+    var range = options && options.range || RANGE;
+    var cur = editor.getCursor(), curLine = editor.getLine(cur.line);
+    var end = cur.ch, start = end;
+    while (start && word.test(curLine.charAt(start - 1))) --start;
+    var curWord = start != end && curLine.slice(start, end);
+
+    var list = options && options.list || [], seen = {};
+    
+    var re_digits = new RegExp(/^\d+$/, "g");
+
+    // not word = 'Enter'
+    if (options.key == 'Enter'){
+      var previous_line = editor.getLine(cur.line - 1);
+      var re_funs = new RegExp(FUNS.source, "g"), match;
+      if (previous_line && (match = re_funs.exec(previous_line)) && curLine == ""){
+        var previous_block = "";
+        for (var i = 0; i < cur.line; i++){
+          previous_block += editor.getLine(i) + '\n';
+        }
+        var next_block = "";
+        for (var i = cur.line + 1; i <= editor.lastLine(); i++){
+          next_block += editor.getLine(i) + '\n';
+        }
+        var file = previous_block + match[1] + ' ()';
+        if (next_block != ""){
+          file = file + '\n' + next_block;
+        }
+        var scrollInfo = editor.getScrollInfo();
+        editor.setValue(file);
+        editor.setCursor(CodeMirror.Pos(cur.line, match[1].length + 2));
+        editor.scrollTo(scrollInfo.left, scrollInfo.top);
+      }
+    }else{
+      var previous_part = curLine.slice(0, start);
+      
+      var re_w_s = new RegExp(WRITING_SET.source, "g");
+      var re_w_c = new RegExp(WRITING_COMMENT.source, "g");
+
+      if (!re_w_s.exec(previous_part) && !re_w_c.exec(previous_part)){
+        // sets
+        var re_dom = new RegExp(DOM.source, "g");
+        if (re_dom.exec(previous_part)){
+          var re_sets = new RegExp(SET.source, "g");
+
+          for (var dir = -1; dir <= 1; dir += 2) {
+            var line = cur.line, endLine = Math.min(Math.max(line + dir * range, editor.firstLine()), editor.lastLine()) + dir;
+            for (; line != endLine; line += dir) {
+              var text = editor.getLine(line), m;
+              while (m = re_sets.exec(text)) {
+                if (line == cur.line && m[1] === curWord) continue;
+                if (!re_digits.exec(m[1]) && (!curWord || m[1].lastIndexOf(curWord, 0) == 0) && !Object.prototype.hasOwnProperty.call(seen, m[1])) {
+                  seen[m[1]] = true;
+                  list.push(m[1]);
+                }
+              }
+            }
+          }
 
-    for(var i= 0; i < filtered_words.length; i++){
-      if (inner.list.indexOf(filtered_words[i]) === -1)
-        inner.list.push(filtered_words[i]);
+          // add default sets
+          var default_sets = hintWords.ES_default_sets();
+          for (var i = 0; i < default_sets.length; i++) {
+            if ((!curWord || default_sets[i].lastIndexOf(curWord, 0) == 0) && !Object.prototype.hasOwnProperty.call(seen, default_sets[i])) {
+              seen[default_sets[i]] = true;
+              list.push(default_sets[i]);
+            }
+          }
+        }else{
+          // get variables of function
+          var previous_block = "";
+          for (var i = 0; i < cur.line; i++){
+            previous_block += editor.getLine(i) + '\n';
+          }
+          previous_block += previous_part;
+
+          // no hint in variables
+          var hint = true;
+          var re_funs = new RegExp(FUNS.source, "g"), match_dom, last_match_dom;
+          while (match_dom = re_funs.exec(previous_block)){ last_match_dom = match_dom };
+          if (last_match_dom){
+            var re_current_fun = new RegExp(last_match_dom[1] + '\\s*\\($', "g");
+            hint = !re_current_fun.exec(previous_part);
+          }
+          if (hint){
+            var re_fun = new RegExp(FUN.source, "g"), match, last_match;
+            while (match = re_fun.exec(previous_block)){ last_match = match };
+            if (last_match){
+              var vars = last_match[2].replace(/\s/g,'').split(',');
+              for (var i = 0; i < vars.length; i++) {
+                if (!re_digits.exec(vars[i]) && (!curWord || vars[i].lastIndexOf(curWord, 0) == 0) && !Object.prototype.hasOwnProperty.call(seen, vars[i])) {
+                  seen[vars[i]] = true;
+                  list.push(vars[i]);
+                }
+              }
+
+              // get enums
+              var re_enums = new RegExp(ENUMS.source, "g");
+              for (var dir = -1; dir <= 1; dir += 2) {
+                var line = cur.line, endLine = Math.min(Math.max(line + dir * range, editor.firstLine()), editor.lastLine()) + dir;
+                for (; line != endLine; line += dir) {
+                  var text = editor.getLine(line), m;
+                  while (m = re_enums.exec(text)) {
+                    var enums = m[1].replace(/\s/g,'').split(',');
+                    for (var i = 0; i < enums.length; i++) {
+                      if (!re_digits.exec(enums[i]) && (!curWord || enums[i].lastIndexOf(curWord, 0) == 0) && !Object.prototype.hasOwnProperty.call(seen, enums[i])) {
+                        seen[enums[i]] = true;
+                        list.push(enums[i]);
+                      }
+                    }
+                  }
+                }
+              }
+              // get functions
+              var re_funs = new RegExp(FUNS.source, "g");
+              for (var dir = -1; dir <= 1; dir += 2) {
+                var line = cur.line, endLine = Math.min(Math.max(line + dir * range, editor.firstLine()), editor.lastLine()) + dir;
+                for (; line != endLine; line += dir) {
+                  var text = editor.getLine(line), m;
+                  while (m = re_funs.exec(text)) {
+                    if (!re_digits.exec(m[1]) && (!curWord || m[1].lastIndexOf(curWord, 0) == 0) && !Object.prototype.hasOwnProperty.call(seen, m[1])) {
+                      seen[m[1]] = true;
+                      list.push(m[1]);
+                    }
+                  }
+                }
+              }
+              // add default functions
+              var default_functions = hintWords.ES_functions();
+              for (var i = 0; i < default_functions.length; i++) {
+                if ((!curWord || default_functions[i].lastIndexOf(curWord, 0) == 0) && !Object.prototype.hasOwnProperty.call(seen, default_functions[i])) {
+                  seen[default_functions[i]] = true;
+                  list.push(default_functions[i]);
+                }
+              }
+            }
+          }
+        }
+      }
     }
-
-    return inner;
-  };
+    return {list: list, from: CodeMirror.Pos(cur.line, start), to: CodeMirror.Pos(cur.line, end)};
+  });
 
   function normal(source, setState) {
     if (source.eatWhile(whiteCharRE)) {
diff --git a/Frontend Angular 4/src/app/layout/matefun/matefun.component.html b/Frontend Angular 4/src/app/layout/matefun/matefun.component.html
index 24f7cf6e795b52f4243cdd39691b8a0deac1971b..2d8ca089b3dfa44c8f9a65a4b297b97fa1561951 100755
--- a/Frontend Angular 4/src/app/layout/matefun/matefun.component.html	
+++ b/Frontend Angular 4/src/app/layout/matefun/matefun.component.html	
@@ -128,7 +128,7 @@
                                     <label><b>Ctrl+E</b> {{ "i18n.shortcuts.exportFile" | translate }}</label>
                                     <label><b>Ctrl+R</b> {{ "i18n.shortcuts.restartInterpreter" | translate }}</label>
                                     <label><b>Ctrl+G</b> {{ "i18n.shortcuts.saveFile" | translate }}</label>
-                                    <label><b>Ctrl+Space</b> {{ "i18n.shortcuts.autocomplete" | translate }}</label>
+                                    <label><b>Ctrl+{{ "i18n.shortcuts.space" | translate }}</b> {{ "i18n.shortcuts.autocomplete" | translate }}</label>
                                 </div>
                             </div>
                         </ng-template>
diff --git a/Frontend Angular 4/src/app/layout/matefun/matefun.component.ts b/Frontend Angular 4/src/app/layout/matefun/matefun.component.ts
index 6ad29206b9639440f7de72aad2b5b506593b66bf..3a0a6ac503cb4914134a9686858fabf424f4c4e7 100755
--- a/Frontend Angular 4/src/app/layout/matefun/matefun.component.ts	
+++ b/Frontend Angular 4/src/app/layout/matefun/matefun.component.ts	
@@ -345,6 +345,14 @@ export class MateFunComponent {
             } 
         }
         document.onkeydown = KeyPress;
+
+        let currentSession = sessionStorage.getItem("currentUser"); 
+        let langCode = currentSession ? JSON.parse(currentSession).language : 'es';
+        if (langCode == 'es'){
+            this.configCodeMirror.mode.name = "matefun-ES";
+        }else if (langCode == 'en'){
+            this.configCodeMirror.mode.name = "matefun-EN";
+        }
     }
 
     ngAfterViewInit() {
diff --git a/Frontend Angular 4/src/assets/i18n/en.json b/Frontend Angular 4/src/assets/i18n/en.json
index 8f76022709bffc931f834bacf1ad76db48c90226..1108717ae06a63f1164beb454e64ddeb96b13cbf 100644
--- a/Frontend Angular 4/src/assets/i18n/en.json	
+++ b/Frontend Angular 4/src/assets/i18n/en.json	
@@ -126,7 +126,8 @@
             "exportFile" : "Export point file",
             "restartInterpreter" : "Restart interpreter",
             "saveFile" : "Save File",
-            "autocomplete" : "Autocomplete"
+            "autocomplete" : "Autocomplete",
+            "space" : "Space"
         }
     }
 }
diff --git a/Frontend Angular 4/src/assets/i18n/es.json b/Frontend Angular 4/src/assets/i18n/es.json
index 28025c3f2824299a006c8a3eabb502b0af3332af..5df33f3a8b6efdc78fe7fafa045943ef98af8b45 100644
--- a/Frontend Angular 4/src/assets/i18n/es.json	
+++ b/Frontend Angular 4/src/assets/i18n/es.json	
@@ -126,7 +126,8 @@
             "exportFile" : "Exportar archivo puntual",
             "restartInterpreter" : "Reiniciar intérprete",
             "saveFile" : "Guardar archivo",
-            "autocomplete" : "Autocompletar"
+            "autocomplete" : "Autocompletar",
+            "space" : "Espacio"
         }
     }
 }