Grammalecte  Diff

    var char_player = require("./char_player.js");
}


class SuggResult {
    // Structure for storing, classifying and filtering suggestions

    constructor (sWord, nSuggLimit=10, nDistLimit=-1) {
        this.sWord = sWord;
        this.sSimplifiedWord = str_transform.simplifyWord(sWord);
        this.nDistLimit = (nDistLimit >= 0) ? nDistLimit :  Math.floor(sWord.length / 3) + 1;
        this.nMinDist = 1000;
        // Temporary sets
        this.aAllSugg = new Set();  // All suggestions, even the one rejected
        this.dGoodSugg = new Map(); // Acceptable suggestions
        this.dBestSugg = new Map(); // Best suggestions
        // Parameters
        this.nSuggLimit = nSuggLimit;
        this.nSuggLimitExt = nSuggLimit + 2;                // we add few entries in case suggestions merge after casing modifications
        this.nBestSuggLimit = Math.floor(nSuggLimit * 1.5); // n times the requested limit
        this.nGoodSuggLimit = nSuggLimit * 15;              // n times the requested limit
    }

    addSugg (sSugg) {
        // add a suggestion
        if (this.aAllSugg.has(sSugg)) {
            return;
        }
        this.aAllSugg.add(sSugg);

        // jaro 0->1 1 les chaines sont égale
        let nDistJaro = 1 - str_transform.distanceJaroWinkler(this.sSimplifiedWord, str_transform.simplifyWord(sSugg));
        let nDist = Math.floor(nDistJaro * 10);
        if (nDistJaro < .11) {        // Best suggestions
            this.dBestSugg.set(sSugg, Math.round(nDistJaro*1000));
            if (this.dBestSugg.size > this.nBestSuggLimit) {
                this.nDistLimit = -1; // make suggest() to end search
            }
        } else if (nDistJaro < .33) { // Good suggestions
            this.dGoodSugg.set(sSugg, Math.round(nDistJaro*1000));
            if (this.dGoodSugg.size > this.nGoodSuggLimit) {
                this.nDistLimit = -1; // make suggest() to end search
            }


        } else {
            if (nDist < this.nMinDist) {
                this.nMinDist = nDist;
            }
            this.nDistLimit = Math.min(this.nDistLimit, this.nMinDist);
        }
        if (nDist <= this.nDistLimit) {
            if (nDist < this.nMinDist) {
                this.nMinDist = nDist;
            }
            this.nDistLimit = Math.min(this.nDistLimit, this.nMinDist+1);
        }
    }

    getSuggestions () {
        // return a list of suggestions
        let lRes = [];
        if (this.dBestSugg.size > 0) {
            // sort only with simplified words
            let lResTmp = [...this.dBestSugg.entries()].sort((a, b) => { return a[1] - b[1]; });
            let nSize = Math.min(this.nSuggLimitExt, lResTmp.length);

            for (let i=0;  i < nSize;  i++){
                lRes.push(lResTmp[i][0]);
            }
        }
        if (lRes.length < this.nSuggLimitExt) {
            // sort with simplified words and original word
            let lResTmp = [...this.dGoodSugg.entries()].sort((a, b) => {
                // Low precision to rely more on simplified words
                let nJaroA = Math.round(str_transform.distanceJaroWinkler(this.sWord, a[0]) * 10);
                let nJaroB = Math.round(str_transform.distanceJaroWinkler(this.sWord, b[0]) * 10);

                if (nJaroA == nJaroB) {
                    return a[1] - b[1];     // warning: both lists are NOT sorted the same way (key: a-b)
                } else {
                    return nJaroB - nJaroA; // warning: both lists are NOT sorted the same way (key: b-a)
                }
            }).slice(0, this.nSuggLimitExt);
            let nSize = Math.min(this.nSuggLimitExt, lResTmp.length);
            for (let i=0;  i < nSize;  i++){
                lRes.push(lResTmp[i][0]);


            }
        }
        // casing
        if (this.sWord.gl_isUpperCase()) {
            lRes = lRes.map((sSugg) => { return sSugg.toUpperCase(); });
            lRes = [...new Set(lRes)];
        }
        else if (this.sWord.slice(0,1).gl_isUpperCase()) {
            lRes = lRes.map((sSugg) => { return sSugg.slice(0,1).toUpperCase() + sSugg.slice(1); });
            lRes = [...new Set(lRes)];
        }
        return lRes.slice(0, this.nSuggLimit);
    }

    reset () {
        this.dSugg.clear();
        this.dGoodSugg.clear();
        this.dBestSugg.clear();
    }
}


class IBDAWG {
    // INDEXABLE BINARY DIRECT ACYCLIC WORD GRAPH

        if (this.lexicographer) {
            [sPfx, sWord, sSfx] = this.lexicographer.split(sWord);
        }
        let nMaxSwitch = Math.max(Math.floor(sWord.length / 3), 1);
        let nMaxDel = Math.floor(sWord.length / 5);
        let nMaxHardRepl = Math.max(Math.floor((sWord.length - 5) / 4), 1);
        let nMaxJump = Math.max(Math.floor(sWord.length / 4), 1);
        let oSuggResult = new SuggResult(sWord, nSuggLimit);
        let sWord = str_transform.cleanWord(sWord);
        if (bSplitTrailingNumbers) {
            this._splitTrailingNumbers(oSuggResult, sWord);
        }
        this._splitSuggest(oSuggResult, sWord);
        this._suggest(oSuggResult, sWord, nMaxSwitch, nMaxDel, nMaxHardRepl, nMaxJump);
        let aSugg = oSuggResult.getSuggestions();
        if (this.lexicographer) {
            aSugg = this.lexicographer.filterSugg(aSugg);
        }
        if (sSfx || sPfx) {
            // we add what we removed
            return aSugg.map( (sSugg) => { return sPfx + sSugg + sSfx; } );
        }