@botonic/plugin-contentful/lib/cjs/nlp/stemmers/stemmer-bg.js

Botonic Plugin Contentful is one of the **[available](https://github.com/hubtype/botonic/tree/master/packages)** plugins for Botonic. **[Contentful](http://www.contentful.com)** is a CMS (Content Management System) which manages contents of a great variet

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.StemmerBg = void 0;
const stopwords_bg_1 = require("../stopwords/stopwords-bg");
const transformations_bg_1 = require("./transformations/transformations-bg");
class StemmerBg {
    stem(tokens) {
        return tokens.map(token => this.stemToken(token));
    }
    stemToken(token) {
        if (this.isStopWord(token)) {
            return token;
        }
        else {
            return this.getRoot(token);
        }
    }
    isStopWord(token) {
        return stopwords_bg_1.bgDefaultStopWords.indexOf(token) != -1;
    }
    getRoot(token) {
        const length = token.length;
        if (length > 1) {
            for (let i = 0; i < length; i++) {
                const suffix = token.substring(i);
                const root = transformations_bg_1.bgTransformations[suffix];
                if (root != undefined) {
                    return token.substring(0, i).concat(root);
                }
            }
        }
        return token;
    }
}
exports.StemmerBg = StemmerBg;
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