Grammalecte  Diff

        let sRes = "";
        for (let c of sWord) {
            sRes += this._dTransChars.gl_get(c, c);
        }
        return sRes.replace("eau", "o").replace("au", "o");
    },

    distanceDamerauLevenshtein: function (s1, s2) {
        // distance of Damerau-Levenshtein between <s1> and <s2>
        // https://fr.wikipedia.org/wiki/Distance_de_Damerau-Levenshtein
        try {
            let nLen1 = s1.length;
            let nLen2 = s2.length;
            let matrix = [];
            for (let i = 0;  i <= nLen1;  i++) {
                matrix[i] = new Array(nLen2 + 1);
            }
            for (let i = 0;  i <= nLen1;  i++) {
                matrix[i][0] = i;
            }
            for (let j = 0;  j <= nLen2;  j++) {
                matrix[0][j] = j;
            }
            for (let i = 1;  i <= nLen1;  i++) {
                for (let j = 1;  j <= nLen2;  j++) {
                    let nCost = (s1[i] === s2[j]) ? 0 : 1;
                    matrix[i][j] = Math.min(
                        matrix[i-1][j] + 1,         // Deletion
                        matrix[i][j-1] + 1,         // Insertion
                        matrix[i-1][j-1] + nCost    // Substitution
                    );
                    if (i > 1 && j > 1 && s1[i] == s2[j-1] && s1[i-1] == s2[j]) {
                        matrix[i][j] = Math.min(matrix[i][j], matrix[i-2][j-2] + nCost);  // Transposition
                    }
                }
            }
            //console.log(s2 + ": " + matrix[nLen1][nLen2]);
            return matrix[nLen1][nLen2];
        }
        catch (e) {
            helpers.logerror(e);
        }
    },

    showDistance (s1, s2) {
        let s1b = this.cleanWord(s1);
        let s2b = this.cleanWord(s2);
        console.log(`Distance: ${s1} / ${s2} = ${this.distanceDamerauLevenshtein(s1, s2)})`);
        console.log(`Distance: ${s1b} / ${s2b} = ${this.distanceDamerauLevenshtein(s1b, s2b)})`);
    },

    // Method: Remove Useless Chars

    aVovels: new Set([
        'a', 'e', 'i', 'o', 'u', 'y',
        'à', 'é', 'î', 'ô', 'û', 'ÿ',
        'â', 'è', 'ï', 'ö', 'ù', 'ŷ',
        'ä', 'ê', 'í', 'ó', 'ü', 'ý',
        'á', 'ë', 'ì', 'ò', 'ú', 'ỳ',
        'ā', 'ē', 'ī', 'ō', 'ū', 'ȳ',
        'h', 'œ', 'æ'
    ]),

    shrinkWord: function (sWord) {
        // remove vovels and h
        let sRes = "";
        for (let cChar of sWord.slice(1)) {
            if (!this.aVovels.has(cChar)) {
                sRes += cChar;
            }
        }
        return sWord.slice(0, 1).replace("h", "") + sRes;
    },


    // Similar chars

    d1to1: new Map([
        ["1", "liîLIÎ"],
        ["2", "zZ"],
        ["3", "eéèêEÉÈÊ"],