hexo-tokenize-search

Website Demo

Json Demo

Dependence

Tokenize Dependence: Segment

Supports chinese and english tokenize .

Installation

$ npm install hexo-tokenize-search --save

Usage :

Config the search json

You can custom the json path in your global _config.xml

search:
  path: search.json

When the plugin is installed , it will auto generator search.json (by default) in your root context.

The json is a array and each element will be included 5 field like this :

[
{
"title": "xxxxxx",
"url": "xxxxxx" ,
"content": "xxxxxx" ,
"title_tokenize": "xx xx xx xx",
"content_tokenize": "xx xx xx xx"
},
{
...
}
]

I removed html tags in the content field and remove punctuations in the tokenize field .

Use the search.json

You can use your query to custom sort the json array.

There is my simple example:

function getParameterByName(name, url) {
    if (!url) url = window.location.href;
    name = name.replace(/[\[\]]/g, "\\$&");
    var regex = new RegExp("[?&]" + name + "(=([^&#]*)|&|#|$)"),
        results = regex.exec(url);
    if (!results) return null;
    if (!results[2]) return '';
    return decodeURIComponent(results[2].replace(/\+/g, " "));
}

function calcScore(key, tokenize) {
    var score = 0;
    for (var x = 0; x < tokenize.length; ++x) {
        for (var i = 0; i < key.length; ++i) {
            if (tokenize[x] == i) {
                score++;
            }
        }
    }
    return score;
}

function addCountToJson(key, json) {
    for (var i = 0; i < json.length; ++i) {
        json[i]['score'] = calcScore(key, json[i].tokenize);
    }
}


// 按 json 元素 score 值进行排序
function quickSort(json) {
    if (json.length <= 1) {
        return json;
    }
    var pivotIndex = Math.floor(json.length / 2);
    var pivot = json.splice(pivotIndex, 1)[0]; // 基准
    var left = [];
    var right = [];
    for (var i = 0; i < json.length; i++) {
        if (json[i].score < pivot.score) {
            left.push(json[i]);
        } else {
            right.push(json[i]);
        }
    }
    return quickSort(left).concat(pivot, quickSort(right));
}

window.onload = function () {

    var query = getParameterByName('query');
    if (query == null) {
        query = '';
    }

    $(".st-default-search-input").val(query);
    $.get("../search.json", function (result) {
        addCountToJson(query, result);
        result = quickSort(result);
        for (var i = result.length - 1; i >= 0; --i) {
            $("#result").append('<a href="' + result[i].url + '"' + ' target="_blank"' + '><li>' + result[i].title + ' 评分: ' + result[i].score + '</li></a>');
        }
    });
};

Thanks

hexo-search