Index: gc_core/js/helpers.js
==================================================================
--- gc_core/js/helpers.js
+++ gc_core/js/helpers.js
@@ -3,96 +3,103 @@
 
 "use strict";
 
 // In Firefox, there is no console.log in PromiseWorker, but there is worker.log.
 // In Thunderbird, you can’t access to console directly. So it’s required to pass a log function.
-let funcOutput = null;
-
-function setLogOutput (func) {
-    funcOutput = func;
-}
-
-function echo (obj) {
-    if (funcOutput !== null) {
-        funcOutput(obj);
-    } else {
-        console.log(obj);
-    }
-    return true;
-}
-
-function logerror (e, bStack=false) {
-    let sMsg = "\n" + e.fileName + "\n" + e.name + "\nline: " + e.lineNumber + "\n" + e.message;
-    if (bStack) {
-        sMsg += "\n--- Stack ---\n" + e.stack;
-    }
-    if (funcOutput !== null) {
-        funcOutput(sMsg);
-    } else {
-        console.error(sMsg);
-    }
-}
-
-function inspect (o) {
-    let sMsg = "__inspect__: " + typeof o;
-    for (let sParam in o) {
-        sMsg += "\n" + sParam + ": " + o.sParam;
-    }
-    sMsg += "\n" + JSON.stringify(o) + "\n__end__";
-    echo(sMsg);
-}
-
-
-// load ressources in workers (suggested by Mozilla extensions reviewers)
-// for more options have a look here: https://gist.github.com/Noitidart/ec1e6b9a593ec7e3efed
-// if not in workers, use sdk/data.load() instead
-function loadFile (spf) {
-    try {
-        let xRequest;
-        if (typeof XMLHttpRequest !== "undefined") {
-            xRequest = new XMLHttpRequest();
-        }
-        else {
-            // JS bullshit again… necessary for Thunderbird
-            let { Cc, Ci } = require("chrome");
-            xRequest = Cc["@mozilla.org/xmlextras/xmlhttprequest;1"].createInstance();
-            xRequest.QueryInterface(Ci.nsIXMLHttpRequest);
-        }
-        xRequest.open('GET', spf, false); // 3rd arg is false for synchronous, sync is acceptable in workers
-        xRequest.send();
-        return xRequest.responseText;
-    }
-    catch (e) {
-        logerror(e);
-        return null
-    }
-}
-
-
-// conversions
-function objectToMap (obj) {
-    let m = new Map();
-    for (let param in obj) {
-        //console.log(param + " " + obj[param]);
-        m.set(param, obj[param]);
-    }
-    return m;
-}
-
-function mapToObject (m) {
-    let obj = {};
-    for (let [k, v] of m) {
-        obj[k] = v;
-    }
-    return obj;
-}
-
-
-if (typeof(exports) !== 'undefined') {
-    exports.setLogOutput = setLogOutput;
-    exports.echo = echo;
-    exports.logerror = logerror;
-    exports.inspect = inspect;
-    exports.loadFile = loadFile;
-    exports.objectToMap = objectToMap;
-    exports.mapToObject = mapToObject;
+var funcOutput = null;
+
+var helpers = {
+    setLogOutput: function (func) {
+        try {
+            funcOutput = func;
+        }
+        catch (e) {
+            func(e);
+            console.error(e);
+        }
+    },
+
+    echo: function (obj) {
+        if (funcOutput !== null) {
+            funcOutput(obj);
+        } else {
+            console.log(obj);
+        }
+        return true;
+    },
+
+    logerror: function (e, bStack=false) {
+        let sMsg = "\n" + e.fileName + "\n" + e.name + "\nline: " + e.lineNumber + "\n" + e.message;
+        if (bStack) {
+            sMsg += "\n--- Stack ---\n" + e.stack;
+        }
+        if (funcOutput !== null) {
+            funcOutput(sMsg);
+        } else {
+            console.error(sMsg);
+        }
+    },
+
+    inspect: function (o) {
+        let sMsg = "__inspect__: " + typeof o;
+        for (let sParam in o) {
+            sMsg += "\n" + sParam + ": " + o.sParam;
+        }
+        sMsg += "\n" + JSON.stringify(o) + "\n__end__";
+        this.echo(sMsg);
+    },
+
+    loadFile: function (spf) {
+        // load ressources in workers (suggested by Mozilla extensions reviewers)
+        // for more options have a look here: https://gist.github.com/Noitidart/ec1e6b9a593ec7e3efed
+        // if not in workers, use sdk/data.load() instead
+        try {
+            let xRequest;
+            if (typeof XMLHttpRequest !== "undefined") {
+                xRequest = new XMLHttpRequest();
+            }
+            else {
+                // JS bullshit again… necessary for Thunderbird
+                let { Cc, Ci } = require("chrome");
+                xRequest = Cc["@mozilla.org/xmlextras/xmlhttprequest;1"].createInstance();
+                xRequest.QueryInterface(Ci.nsIXMLHttpRequest);
+            }
+            xRequest.open('GET', spf, false); // 3rd arg is false for synchronous, sync is acceptable in workers
+            xRequest.send();
+            return xRequest.responseText;
+        }
+        catch (e) {
+            this.logerror(e);
+            return null
+        }
+    },
+
+    // conversions
+    objectToMap: function (obj) {
+        let m = new Map();
+        for (let param in obj) {
+            //console.log(param + " " + obj[param]);
+            m.set(param, obj[param]);
+        }
+        return m;
+    },
+
+    mapToObject: function (m) {
+        let obj = {};
+        for (let [k, v] of m) {
+            obj[k] = v;
+        }
+        return obj;
+    }
+}
+
+
+
+if (typeof(exports) !== 'undefined') {
+    exports.setLogOutput = helpers.setLogOutput;
+    exports.echo = helpers.echo;
+    exports.logerror = helpers.logerror;
+    exports.inspect = helpers.inspect;
+    exports.loadFile = helpers.loadFile;
+    exports.objectToMap = helpers.objectToMap;
+    exports.mapToObject = helpers.mapToObject;
 }

Index: gc_core/js/str_transform.js
==================================================================
--- gc_core/js/str_transform.js
+++ gc_core/js/str_transform.js
@@ -1,60 +1,32 @@
 //// STRING TRANSFORMATION
 
-var dSimilarChars = new Map ([
-    ["a", "aàâáä"],
-    ["à", "aàâáä"],
-    ["â", "aàâáä"],
-    ["á", "aàâáä"],
-    ["ä", "aàâáä"],
-    ["c", "cç"],
-    ["ç", "cç"],
-    ["e", "eéêèë"],
-    ["é", "eéêèë"],
-    ["ê", "eéêèë"],
-    ["è", "eéêèë"],
-    ["ë", "eéêèë"],
-    ["i", "iîïíì"],
-    ["î", "iîïíì"],
-    ["ï", "iîïíì"],
-    ["í", "iîïíì"],
-    ["ì", "iîïíì"],
-    ["o", "oôóòö"],
-    ["ô", "oôóòö"],
-    ["ó", "oôóòö"],
-    ["ò", "oôóòö"],
-    ["ö", "oôóòö"],
-    ["u", "uûùüú"],
-    ["û", "uûùüú"],
-    ["ù", "uûùüú"],
-    ["ü", "uûùüú"],
-    ["ú", "uûùüú"]
-]);
-
 // Note: 48 is the ASCII code for "0"
 
-// Suffix only
-function getStemFromSuffixCode (sFlex, sSfxCode) {
-    if (sSfxCode == "0") {
-        return sFlex;
-    }
-    return sSfxCode[0] == '0' ? sFlex + sSfxCode.slice(1) : sFlex.slice(0, -(sSfxCode.charCodeAt(0)-48)) + sSfxCode.slice(1);
-}
-
-// Prefix and suffix
-function getStemFromAffixCode (sFlex, sAffCode) {
-    if (sAffCode == "0") {
-        return sFlex;
-    }
-    if (!sAffCode.includes("/")) {
-        return "# error #";
-    }
-    var [sPfxCode, sSfxCode] = sAffCode.split('/');
-    sFlex = sPfxCode.slice(1) + sFlex.slice(sPfxCode.charCodeAt(0)-48);
-    return sSfxCode[0] == '0' ? sFlex + sSfxCode.slice(1) : sFlex.slice(0, -(sSfxCode.charCodeAt(0)-48)) + sSfxCode.slice(1);
+var str_transform = {
+    getStemFromSuffixCode: function (sFlex, sSfxCode) {
+        // Suffix only
+        if (sSfxCode == "0") {
+            return sFlex;
+        }
+        return sSfxCode[0] == '0' ? sFlex + sSfxCode.slice(1) : sFlex.slice(0, -(sSfxCode.charCodeAt(0)-48)) + sSfxCode.slice(1);
+    },
+    
+    getStemFromAffixCode: function (sFlex, sAffCode) {
+        // Prefix and suffix
+        if (sAffCode == "0") {
+            return sFlex;
+        }
+        if (!sAffCode.includes("/")) {
+            return "# error #";
+        }
+        let [sPfxCode, sSfxCode] = sAffCode.split('/');
+        sFlex = sPfxCode.slice(1) + sFlex.slice(sPfxCode.charCodeAt(0)-48);
+        return sSfxCode[0] == '0' ? sFlex + sSfxCode.slice(1) : sFlex.slice(0, -(sSfxCode.charCodeAt(0)-48)) + sSfxCode.slice(1);
+    }
 }
 
 
 if (typeof(exports) !== 'undefined') {
-    exports.getStemFromSuffixCode = getStemFromSuffixCode;
-    exports.getStemFromAffixCode = getStemFromAffixCode;
+    exports.getStemFromSuffixCode = str_transform.getStemFromSuffixCode;
+    exports.getStemFromAffixCode = str_transform.getStemFromAffixCode;
 }

Index: gc_core/js/text.js
==================================================================
--- gc_core/js/text.js
+++ gc_core/js/text.js
@@ -2,63 +2,64 @@
 
 "use strict";
 
 const helpers = require("resource://grammalecte/helpers.js");
 
-
-function* getParagraph (sText) {
-    // generator: returns paragraphs of text
-    let iStart = 0;
-    let iEnd = 0;
-    sText = sText.replace("\r", "");
-    while ((iEnd = sText.indexOf("\n", iStart)) !== -1) {
-        yield sText.slice(iStart, iEnd);
-        iStart = iEnd + 1;
-    }
-    yield sText.slice(iStart);
-}
-
-function* wrap (sText, nWidth=80) {
-    // generator: returns text line by line
-    while (sText) {
-        if (sText.length >= nWidth) {
-            let nEnd = sText.lastIndexOf(" ", nWidth) + 1;
-            if (nEnd > 0) {
-                yield sText.slice(0, nEnd);
-                sText = sText.slice(nEnd);
-            } else {
-                yield sText.slice(0, nWidth);
-                sText = sText.slice(nWidth);
-            }
-        } else {
-            break;
-        }
-    }
-    yield sText;
-}
-
-function getReadableError (oErr) {
-    // Returns an error oErr as a readable error
-    try {
-        let sResult = "\n* " + oErr['nStart'] + ":" + oErr['nEnd'] 
-                    + "  # " + oErr['sLineId'] + "  # " + oErr['sRuleId'] + ":\n";
-        sResult += "  " + oErr["sMessage"];
-        if (oErr["aSuggestions"].length > 0) {
-            sResult += "\n  > Suggestions : " + oErr["aSuggestions"].join(" | ");
-        }
-        if (oErr["URL"] !== "") {
-            sResult += "\n  > URL: " + oErr["URL"];
-        }
-        return sResult;
-    }
-    catch (e) {
-        helpers.logerror(e);
-        return "\n# Error. Data: " + oErr.toString();
+var text = {
+    getParagraph: function* (sText) {
+        // generator: returns paragraphs of text
+        let iStart = 0;
+        let iEnd = 0;
+        sText = sText.replace("\r", "");
+        while ((iEnd = sText.indexOf("\n", iStart)) !== -1) {
+            yield sText.slice(iStart, iEnd);
+            iStart = iEnd + 1;
+        }
+        yield sText.slice(iStart);
+    },
+
+    wrap: function* (sText, nWidth=80) {
+        // generator: returns text line by line
+        while (sText) {
+            if (sText.length >= nWidth) {
+                let nEnd = sText.lastIndexOf(" ", nWidth) + 1;
+                if (nEnd > 0) {
+                    yield sText.slice(0, nEnd);
+                    sText = sText.slice(nEnd);
+                } else {
+                    yield sText.slice(0, nWidth);
+                    sText = sText.slice(nWidth);
+                }
+            } else {
+                break;
+            }
+        }
+        yield sText;
+    },
+
+    getReadableError: function (oErr) {
+        // Returns an error oErr as a readable error
+        try {
+            let sResult = "\n* " + oErr['nStart'] + ":" + oErr['nEnd'] 
+                        + "  # " + oErr['sLineId'] + "  # " + oErr['sRuleId'] + ":\n";
+            sResult += "  " + oErr["sMessage"];
+            if (oErr["aSuggestions"].length > 0) {
+                sResult += "\n  > Suggestions : " + oErr["aSuggestions"].join(" | ");
+            }
+            if (oErr["URL"] !== "") {
+                sResult += "\n  > URL: " + oErr["URL"];
+            }
+            return sResult;
+        }
+        catch (e) {
+            helpers.logerror(e);
+            return "\n# Error. Data: " + oErr.toString();
+        }
     }
 }
 
 
 if (typeof(exports) !== 'undefined') {
-    exports.getParagraph = getParagraph;
-    exports.wrap = wrap;
-    exports.getReadableError = getReadableError;
+    exports.getParagraph = text.getParagraph;
+    exports.wrap = text.wrap;
+    exports.getReadableError = text.getReadableError;
 }

Index: gc_lang/fr/modules-js/phonet.js
==================================================================
--- gc_lang/fr/modules-js/phonet.js
+++ gc_lang/fr/modules-js/phonet.js
@@ -1,75 +1,74 @@
 // Grammalecte - Suggestion phonétique
 
 const helpers = require("resource://grammalecte/helpers.js");
-const echo = helpers.echo;
-
-const oData = JSON.parse(helpers.loadFile("resource://grammalecte/fr/phonet_data.json"));
-
-const _dWord = helpers.objectToMap(oData.dWord);
-const _lSet = oData.lSet;
-const _dMorph = helpers.objectToMap(oData.dMorph);
-
-
-
-function hasSimil (sWord, sPattern=null) {
-    // return True if there is list of words phonetically similar to sWord
-    if (!sWord) {
-        return false;
-    }
-    if (_dWord.has(sWord)) {
-        if (sPattern) {
-            return getSimil(sWord).some(sSimil => _dMorph.gl_get(sSimil, []).some(sMorph => sMorph.search(sPattern) >= 0));
-        }
-        return true;
-    }
-    if (sWord.slice(0,1).gl_isUpperCase()) {
-        sWord = sWord.toLowerCase();
-        if (_dWord.has(sWord)) {
-            if (sPattern) {
-                return getSimil(sWord).some(sSimil => _dMorph.gl_get(sSimil, []).some(sMorph => sMorph.search(sPattern) >= 0));
-            }
-            return true;
-        }
-    }
-    return false;
-}
-
-function getSimil (sWord) {
-    // return list of words phonetically similar to sWord
-    if (!sWord) {
-        return [];
-    }
-    if (_dWord.has(sWord)) {
-        return _lSet[_dWord.get(sWord)];
-    }
-    if (sWord.slice(0,1).gl_isUpperCase()) {
-        sWord = sWord.toLowerCase();
-        if (_dWord.has(sWord)) {
-            return _lSet[_dWord.get(sWord)];
-        }
-    }
-    return [];
-}
-
-function selectSimil (sWord, sPattern) {
-    // return list of words phonetically similar to sWord and whom POS is matching sPattern
-    if (!sPattern) {
-        return new Set(getSimil(sWord));
-    }
-    let aSelect = new Set();
-    for (let sSimil of getSimil(sWord)) {
-        for (let sMorph of _dMorph.gl_get(sSimil, [])) {
-            if (sMorph.search(sPattern) >= 0) {
-                aSelect.add(sSimil);
-            }
-        }
-    }
-    return aSelect;
+
+const _oData = JSON.parse(helpers.loadFile("resource://grammalecte/fr/phonet_data.json"));
+const _dWord = helpers.objectToMap(_oData.dWord);
+const _lSet = _oData.lSet;
+const _dMorph = helpers.objectToMap(_oData.dMorph);
+
+
+var phonet = {
+    hasSimil: function (sWord, sPattern=null) {
+        // return True if there is list of words phonetically similar to sWord
+        if (!sWord) {
+            return false;
+        }
+        if (_dWord.has(sWord)) {
+            if (sPattern) {
+                return this.getSimil(sWord).some(sSimil => _dMorph.gl_get(sSimil, []).some(sMorph => sMorph.search(sPattern) >= 0));
+            }
+            return true;
+        }
+        if (sWord.slice(0,1).gl_isUpperCase()) {
+            sWord = sWord.toLowerCase();
+            if (_dWord.has(sWord)) {
+                if (sPattern) {
+                    return this.getSimil(sWord).some(sSimil => _dMorph.gl_get(sSimil, []).some(sMorph => sMorph.search(sPattern) >= 0));
+                }
+                return true;
+            }
+        }
+        return false;
+    },
+
+    getSimil: function (sWord) {
+        // return list of words phonetically similar to sWord
+        if (!sWord) {
+            return [];
+        }
+        if (_dWord.has(sWord)) {
+            return _lSet[_dWord.get(sWord)];
+        }
+        if (sWord.slice(0,1).gl_isUpperCase()) {
+            sWord = sWord.toLowerCase();
+            if (_dWord.has(sWord)) {
+                return _lSet[_dWord.get(sWord)];
+            }
+        }
+        return [];
+    },
+
+    selectSimil: function (sWord, sPattern) {
+        // return list of words phonetically similar to sWord and whom POS is matching sPattern
+        if (!sPattern) {
+            return new Set(this.getSimil(sWord));
+        }
+        let aSelect = new Set();
+        for (let sSimil of this.getSimil(sWord)) {
+            for (let sMorph of _dMorph.gl_get(sSimil, [])) {
+                if (sMorph.search(sPattern) >= 0) {
+                    aSelect.add(sSimil);
+                }
+            }
+        }
+        return aSelect;
+    }
 }
 
 
 if (typeof(exports) !== 'undefined') {
-    exports.hasSimil = hasSimil;
-    exports.getSimil = getSimil;
-    exports.selectSimil = selectSimil;
+    exports.hasSimil = phonet.hasSimil;
+    exports.getSimil = phonet.getSimil;
+    exports.selectSimil = phonet.selectSimil;
 }

Index: gc_lang/fr/tb/content/overlay.js
==================================================================
--- gc_lang/fr/tb/content/overlay.js
+++ gc_lang/fr/tb/content/overlay.js
@@ -910,10 +910,11 @@
 }, false);
 
 window.addEventListener("load", function (xEvent) {
     oDictIgniter.init();
     oGrammarChecker.loadGC();
+    //oGrammarChecker.fullTests();
 }, false);
 
 window.addEventListener("compose-window-init", function (xEvent) {
     oGrammarChecker.loadUI();
     oGrammarChecker.closePanel();