mint/app/Tools/TurboSplit.php

<?php
namespace App\Tools;
require_once __DIR__.'/../../public/app/public/casesuf.inc';

use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\DB;
use App\Models\WordPart;
use App\Models\UserDict;
use Illuminate\Support\Arr;

class TurboSplit
{
    protected $options = [
        "express" => false,
        "c_threshhold" => 0.8,
        "w_threshhold" => 0.8,
        "forward" => true,
        "sandhi_advance" => false,
        "lookup_declension" => true,/**快速查字典-不去尾 */
    ];
    protected $node = [];
	protected $path = array();
	protected $isDebug = false;
	#当前搜索路径信心指数，如果过低，马上终止这个路径的搜索
	protected $currPathCf;
	//结果数组
	protected $result = array();
	//过程中最大结果数量
	protected $MAX_RESULT = 100;
	//返回值最大结果数量
	protected $MAX_RESULT2 = 8;
	//最大递归深度
	protected $MAX_DEEP = 16;
	//连音规则表
	protected $sandhi = [
		["a" => "", "b" => "", "c" => "", "len" => 0, "adj_len" => 0, "advance" => false,"cf"=>1.0],
		["a" => "a", "b" => "a", "c" => "ā", "len" => 1, "adj_len" => 0, "advance" => false,"cf"=>0.99999],
		["a" => "ā", "b" => "ā", "c" => "ā", "len" => 1, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "a", "b" => "ā", "c" => "ā", "len" => 1, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "ā", "b" => "a", "c" => "ā", "len" => 1, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "a", "b" => "e", "c" => "e", "len" => 1, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "a", "b" => "i", "c" => "i", "len" => 1, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "a", "b" => "o", "c" => "o", "len" => 1, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "a", "b" => "u", "c" => "o", "len" => 1, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "u", "b" => "a", "c" => "o", "len" => 1, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "u", "b" => "u", "c" => "ū", "len" => 1, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "a", "b" => "u", "c" => "u", "len" => 1, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "a", "b" => "ī", "c" => "ī", "len" => 1, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "a", "b" => "ū", "c" => "ū", "len" => 1, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "a", "b" => "i", "c" => "e", "len" => 1, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "e", "b" => "a", "c" => "e", "len" => 1, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "i", "b" => "i", "c" => "ī", "len" => 1, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "i", "b" => "e", "c" => "e", "len" => 1, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "i", "b" => "a", "c" => "ya", "len" => 2, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "a", "b" => "atth", "c" => "atth", "len" => 4, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "taṃ", "b" => "n", "c" => "tann", "len" => 4, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "[ṃ]", "b" => "api", "c" => "mpi", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "[ṃ]", "b" => "eva", "c" => "meva", "len" => 4, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "[o]", "b" => "iva", "c" => "ova", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "o", "b" => "a", "c" => "o", "len" => 1, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "a", "b" => "ādi", "c" => "ādi", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "a[ānaṃ]", "b" => "a", "c" => "ānama", "len" => 5, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "a", "b" => "iti", "c" => "āti", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "[ṃ]", "b" => "ca", "c" => "ñca", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "[ṃ]", "b" => "iti", "c" => "nti", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "[ṃ]", "b" => "a", "c" => "ma", "len" => 2, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "ṃ", "b" => "a", "c" => "m", "len" => 1, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "[ṃ]", "b" => "ā", "c" => "mā", "len" => 2, "adj_len" => 0, "advance" => false,"cf"=>0.8],
		["a" => "ṃ", "b" => "ā", "c" => "mā", "len" => 2, "adj_len" => 0, "advance" => false,"cf"=>0.9],
		["a" => "[ṃ]", "b" => "u", "c" => "mu", "len" => 2, "adj_len" => 0, "advance" => false,"cf"=>0.8],
		["a" => "[ṃ]", "b" => "h", "c" => "ñh", "len" => 2, "adj_len" => 0, "advance" => false,"cf"=>0.8],
		["a" => "ā", "b" => "[ṃ]", "c" => "am", "len" => 2, "adj_len" => 0, "advance" => false,"cf"=>0.8],
		["a" => "a", "b" => "[ṃ]", "c" => "am", "len" => 2, "adj_len" => 0, "advance" => false,"cf"=>0.8],
		["a" => "ī", "b" => "[ṃ]", "c" => "im", "len" => 2, "adj_len" => 0, "advance" => false,"cf"=>0.8],
		["a" => "ati", "b" => "tabba", "c" => "atabba", "len" => 6, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "ati", "b" => "tabba", "c" => "itabba", "len" => 6, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "iti", "b" => "a", "c" => "icca", "len" => 4, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "uṃ", "b" => "a", "c" => "uma", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "u[ūnaṃ]", "b" => "a", "c" => "ūnama", "len" => 5, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "ī[īnaṃ]", "b" => "a", "c" => "īnama", "len" => 5, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "su", "b" => "a", "c" => "sva", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "ā", "b" => "iti", "c" => "āti", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "a", "b" => "iti", "c" => "āti", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.99999],
		["a" => "e", "b" => "iti", "c" => "eti", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.99999],
		["a" => "ī", "b" => "iti", "c" => "īti", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "i", "b" => "iti", "c" => "īti", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.99999],
		["a" => "o", "b" => "iti", "c" => "oti", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.99999],
		["a" => "ū", "b" => "iti", "c" => "ūti", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "u", "b" => "iti", "c" => "ūti", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.99999],
		["a" => "ṃ", "b" => "iti", "c" => "nti", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.99999],
		["a" => "ṃ", "b" => "ca", "c" => "ñca", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>1.0],
		["a" => "ṃ", "b" => "cāti", "c" => "ñcāti", "len" => 5, "adj_len" => 0, "advance" => false,"cf"=>1.0],
		["a" => "ṃ", "b" => "cet", "c" => "ñcet", "len" => 4, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "ṃ", "b" => "ev", "c" => "mev", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.99999],
		["a" => "a", "b" => "a", "c" => "a", "len" => 1, "adj_len" => -1, "advance" => true,"cf"=>0.99],
		["a" => "ī", "b" => "", "c" => "i", "len" => 1, "adj_len" => 0, "advance" => true,"cf"=>0.9],
	];

	protected $sandhi2 = [
		["a" => "ṃ", "b" => "ca", "c" => "ñca", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>1.0],
		["a" => "ṃ", "b" => "hi", "c" => "ñhi", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>1.0],
		["a" => "ena", "b" => "iti", "c" => "enāti", "len" => 5, "adj_len" => 0, "advance" => false,"cf"=>1.0],
		["a" => "a", "b" => "iti", "c" => "āti", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9],
		["a" => "ā", "b" => "iti", "c" => "āti", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.6],
		["a" => "e", "b" => "iti", "c" => "eti", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9],
		["a" => "i", "b" => "iti", "c" => "īti", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9],
		["a" => "o", "b" => "iti", "c" => "oti", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9],
		["a" => "u", "b" => "iti", "c" => "ūti", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9],
		["a" => "ṃ", "b" => "iti", "c" => "nti", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9],
		["a" => "ī", "b" => "eva", "c" => "iyeva", "len" => 5, "adj_len" => 0, "advance" => false,"cf"=>0.9],
		["a" => "ī", "b" => "eva", "c" => "īyeva", "len" => 5, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "u", "b" => "eva", "c" => "uyeva", "len" => 5, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "ṃ", "b" => "eva", "c" => "ṃyeva", "len" => 5, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "i", "b" => "eva", "c" => "yeva", "len" => 4, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "o", "b" => "eva", "c" => "ova", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "ṃ", "b" => "eva", "c" => "meva", "len" => 4, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "u", "b" => "eva", "c" => "veva", "len" => 4, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "a", "b" => "eva", "c" => "eva", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "e", "b" => "eva", "c" => "eva", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "a", "b" => "api", "c" => "āpi", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "ā", "b" => "api", "c" => "āpi", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "e", "b" => "api", "c" => "epi", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "i", "b" => "api", "c" => "īpi", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "ī", "b" => "api", "c" => "īpi", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "o", "b" => "api", "c" => "opi", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "u", "b" => "api", "c" => "ūpi", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "ū", "b" => "api", "c" => "ūpi", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "u", "b" => "api", "c" => "upi", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
		["a" => "ṃ", "b" => "api", "c" => "mpi", "len" => 3, "adj_len" => 0, "advance" => false,"cf"=>0.9999],
	];

	/**
     * Create a new class instance.
     *
     * @return void
     */
    public function __construct($options=[])
    {
		for($i=0;$i<$this->MAX_DEEP;$i++ ){
			array_push($this->path, array("", 0));
		}
        foreach ($options as $key => $value) {
            $this->options[$key] = $value;
        }
        return;
    }

	/**
     * 从双元音处切开
     * @param  string  $word
     * @return void
     */
	public function splitDiphthong($word)
	{
		//diphthong table双元音表
		$search = array('aa', 'ae', 'ai', 'ao', 'au', 'aā', 'aī', 'aū', 'ea', 'ee', 'ei', 'eo', 'eu', 'eā', 'eī', 'eū', 'ia', 'ie', 'ii', 'io', 'iu', 'iā', 'iī', 'iū', 'oa', 'oe', 'oi', 'oo', 'ou', 'oā', 'oī', 'oū', 'ua', 'ue', 'ui', 'uo', 'uu', 'uā', 'uī', 'uū', 'āa', 'āe', 'āi', 'āo', 'āu', 'āā', 'āī', 'āū', 'īa', 'īe', 'īi', 'īo', 'īu', 'īā', 'īī', 'īū', 'ūa', 'ūe', 'ūi', 'ūo', 'ūu', 'ūā', 'ūī', 'ūū');
		$replace = array('a-a', 'a-e', 'a-i', 'a-o', 'a-u', 'a-ā', 'a-ī', 'a-ū', 'e-a', 'e-e', 'e-i', 'e-o', 'e-u', 'e-ā', 'e-ī', 'e-ū', 'i-a', 'i-e', 'i-i', 'i-o', 'i-u', 'i-ā', 'i-ī', 'i-ū', 'o-a', 'o-e', 'o-i', 'o-o', 'o-u', 'o-ā', 'o-ī', 'o-ū', 'u-a', 'u-e', 'u-i', 'u-o', 'u-u', 'u-ā', 'u-ī', 'u-ū', 'ā-a', 'ā-e', 'ā-i', 'ā-o', 'ā-u', 'ā-ā', 'ā-ī', 'ā-ū', 'ī-a', 'ī-e', 'ī-i', 'ī-o', 'ī-u', 'ī-ā', 'ī-ī', 'ī-ū', 'ū-a', 'ū-e', 'ū-i', 'ū-o', 'ū-u', 'ū-ā', 'ū-ī', 'ū-ū');
		//将双元音拆开
		//step 1 : split at diphthong . ~aa~ -> ~a-a~
		$word1 = str_replace($search, $replace, $word);
		//按连字符拆开处理
		$arrword = str_getcsv($word1, "-");
		return $arrword;
	}

	/**
     * 查询单词是否存在
     * @param  string  $word
     * @return array(int $wordWeight, int $endingLenght)
     */
	public function dict_lookup($word)
	{
		global $case;		//语尾表
		if (strlen($word) <= 1) {
			return array(0,0);
		}
        $search = $word;

		//获取单词权重
		$row = Cache::remember('palicanon/wordpart/weight/'.$search,
                env('CACHE_EXPIRE',3600*24) ,
                function() use($search) {
                    return WordPart::where('word',$search)->value('weight');
                });
		if ($row) {
			//找到
            $this->log($search.'='.$row);
			return array($row,0);
		} else {
            if($this->options["lookup_declension"]){
                return array(0,0);
            }
			//去除尾查
			$newWord = array();
			for ($row = 0; $row < count($case); $row++) {
				$len = mb_strlen($case[$row][1], "UTF-8");
				$end = mb_substr($search, 0 - $len, null, "UTF-8");
				if ($end == $case[$row][1]) {
					$base = mb_substr($search, 0, mb_strlen($search, "UTF-8") - $len, "UTF-8") . $case[$row][0];
					if ($base != $search) {
						$newWord[$base] = mb_strlen($case[$row][1],"UTF-8");
					}
				}
			}
			#找到最高频的base
			$base_weight = 0;
			$len = 0;
			foreach ($newWord as $x => $x_value) {
				$row = Cache::remember('palicanon/wordpart/weight/'.$search,
                        env('CACHE_EXPIRE',3600*24) ,
                        function() use($x) {
                            return WordPart::where('word',$x)->value('weight');
                        });
				if ($row) {
					if ($row > $base_weight) {
						$base_weight = $row;
						$len=$x_value;
					}
				}
			}
			return array($base_weight,$len);
		}
	}

	/**
	 * 查找某个单词是否在现有词典出现
	 * 返回信心指数
	 * look up single word in dictionary vocabulary
	 * return the confidence value
	 *
	 *
	 *
	 */
	public function isExsit($word, $adj_len = 0){
		$this->log("正在查询：{$word}");

		$isFound = false;
		$count = 0;
		$wordPart  = Cache::remember("turbosplit/part/{$word}",
                        env('CACHE_EXPIRE',3600*24),
                        function() use($word){
                            return implode(',',$this->dict_lookup($word));
                        });
		$arrWordPart = explode(',',$wordPart);
		$word_count = $arrWordPart[0];
		$case_len = $arrWordPart[1];
		if ($word_count > 0) {
			$this->log("查到：{$word}:{$word_count}个");
			$isFound = true;
			$count = $word_count + 1;
		}

		//fomular of confidence value 信心值计算公式
		if ($isFound) {
			$cf  = Cache::remember("turbosplit/confidence/".$word,
                    env('CACHE_EXPIRE',1000),
                    function() use($word,$count,$case_len){
                        $len = mb_strlen($word, "UTF-8") - $case_len;
                        $len_correct = 1.2;
                        $count2 = 1.1 + pow($count, 1.18);
                        $conf_num = pow(1 / $count2, pow(($len - 0.5), $len_correct));
                        return round(1 / (1 + 640 * $conf_num), 9);
                    });
			return ($cf);
		} else {
			return (-1);
		}
	}

    /**
     * word
     * cf
     * children[]
     */
	/**
	 * 核心拆分函数
	 * $strWord, word to be look up 要查询的词
	 * $deep, 当前递归深度
     * $forward 搜索方向
     *   true 正向
     *   false 反向
	 * $express=true, 快速查询
	 * $adj_len=0 长度校正系数
	 * $c_threshhold 信心指数阈值
	 *
	 *
	 *
	 */
	function split(&$node, $deep = 0, $express = false, $adj_len = 0, $c_threshhold = 0.8, $w_threshhold = 0.8, $forward = true, $sandhi_advance = false)
	{
        $strWord = $node["remain"];
		$this->log("spliting word={$strWord} deep={$deep}");
		$output = array();
		#currPathCf是当前搜索路径信心指数，如果过低，马上终止这个路径的搜索
		if($deep == 0){
			$this->currPathCf = 1;
		}
		//达到最大搜索深度，返回
		if ($deep >= $this->MAX_DEEP) {
            return ;
		}
		//直接找到

		$confidence = $this->isExsit($strWord, $adj_len);
		if ($confidence > $c_threshhold) {
			array_push($output, array($strWord, "", $confidence));
            if(isset($node['sum_cf'])){
                $parent_sum_cf = $node['sum_cf'];
            }else{
                $parent_sum_cf = 1;
            }
            $sum_cf = $parent_sum_cf * $confidence;
            $node['children'][] = ['word'=>$strWord,'remain'=>"",'cf'=>$confidence,"sum_cf"=>$sum_cf];
            $this->log("直接找到{$strWord}-{$confidence}");
		}
		else if(mb_strlen($strWord,"UTF-8")<6){
            //按照语尾查询
            $search = "[{$strWord}]";
			$confidence = $this->isExsit($search);
            $this->log("查询:{$search}-信心指数{$confidence}");
			if ($confidence > $c_threshhold) {
				array_push($output, array($search, "", $confidence));
                if(isset($node['sum_cf'])){
                    $parent_sum_cf = $node['sum_cf'];
                }else{
                    $parent_sum_cf = 1;
                }
                $sum_cf = $parent_sum_cf * $confidence;
                $node['children'][] = ['word'=>$search,'remain'=>"",'cf'=>$confidence,"sum_cf"=>$sum_cf];
                $this->log("直接找到{$strWord}-{$confidence}");
			}
		}

		//如果开头有双辅音，去掉第一个辅音。因为巴利语中没有以双辅音开头的单词。
		$doubleword = "kkggccjjṭṭḍḍttddppbb";
		if (mb_strlen($strWord, "UTF-8") > 2) {
			$left2 = mb_substr($strWord, 0, 2, "UTF-8");
			if (mb_strpos($doubleword, $left2, 0, "UTF-8") !== false) {
				$strWord = mb_substr($strWord, 1, null, "UTF-8");
			}
		}

		$len = mb_strlen($strWord, "UTF-8");
		if ($len > 2) {
			if ($forward) {
				#正向切
				$this->log("正向切");
				for ($i = $len; $i > 1; $i--) {
                    //应用连音规则切分单词
					foreach ($this->sandhi as $key => $row) {
						if ($sandhi_advance == false && $row["advance"] == true) {
							//continue;
						}
						if (mb_substr($strWord, $i - $row["len"], $row["len"], "UTF-8") == $row["c"]) {
							$str1 = mb_substr($strWord, 0, $i - $row["len"], "UTF-8") . $row["a"];
							$str2 = $row["b"] . mb_substr($strWord, $i, null, "UTF-8");
							$confidence = $this->isExsit($str1, $adj_len)*$row["cf"];
							if ($confidence > $c_threshhold) {
								//信心指数大于预设的阈值，插入
								array_push($output, array($str1, $str2, $confidence, $row["adj_len"]));
                                if(isset($node['sum_cf'])){
                                    $parent_sum_cf = $node['sum_cf'];
                                }else{
                                    $parent_sum_cf = 1;
                                }
                                $sum_cf = $parent_sum_cf * $confidence;
                                if($sum_cf>$c_threshhold){
                                    $node['children'][] = [
                                        'word'=>$str1,
                                        'remain'=>$str2,
                                        'cf'=>$confidence,
                                        'sum_cf'=>$sum_cf,
                                        'children'=>[]
                                    ];
                                }

								$this->log("插入结构数组：{$str1} 剩余{$str2} 应用：{$row["a"]}-{$row["b"]}-{$row["c"]}");
								if ($express) {
									break;
								}

							}
						}
					}
				}
			} else {
				#反向切
				for ($i = 1; $i < $len - 1; $i++) {
					foreach ($this->sandhi as $key => $row) {
						if ($sandhi_advance == false && $row["advance"] == true) {
							//continue;
						}
						if (mb_substr($strWord, $i, $row["len"], "UTF-8") == $row["c"]) {
							$str1 = mb_substr($strWord, 0, $i, "UTF-8") . $row["a"];
							$str2 = $row["b"] . mb_substr($strWord, $i + $row["len"], null, "UTF-8");
							$confidence = $this->isExsit($str2, $adj_len)*$row["cf"];
							if ($confidence > $c_threshhold) {
								array_push($output, array($str2, $str1, $confidence, $row["adj_len"]));
                                if(isset($node['sum_cf'])){
                                    $parent_sum_cf = $node['sum_cf'];
                                }else{
                                    $parent_sum_cf = 1;
                                }
                                $sum_cf = $parent_sum_cf * $confidence;
                                if($sum_cf>$c_threshhold){
                                    $node['children'][] = [
                                        'word'=>$str2,
                                        'remain'=>$str1,
                                        'cf'=>$confidence,
                                        'sum_cf'=>$sum_cf,
                                        'children'=>[],
                                    ];
                                }
								$this->log("将此次结果插入结果数组：剩余={$str2}");
								if ($express) {
									break;
								}
							}
						}
					}
				}
			}
		}

		$word = "";
		$this->log("结果数组个数：".count($output));
        //print_r($node);
        //遍历children
        foreach ($node['children'] as $key => $child) {
            # code...
            if(isset($child) && !empty($child['remain'])){
                $this->split($node['children'][$key], ($deep + 1), $express, $adj_len, $c_threshhold, $w_threshhold, $forward, $sandhi_advance);
            }
        }
	}

    /**
     * 遍历树状结构，获取结果
     */
    private function get_result($node,&$path){

            # code...
            $path[] = $node['word'];
            if(isset($node['children']) && count($node['children'])>0){
                foreach ($node['children'] as $key => $value) {
                    $this->get_result($value,$path);
                }
            }else{
                if(empty($node['remain'])){
                    $factors = trim(implode("+",$path),'+');
                    $this->result[$factors] = $node['sum_cf'];
                }else{

                }
            }
            array_pop($path);
    }
	/**
	 * 颠倒词序
	 */
	public function word_reverse($word)
	{
		$reverse = array();
		$newword = explode("+", $word);
		$len = count($newword);
		if ($len > 0) {
			for ($i = $len - 1; $i >= 0; $i--) {
				# code...
				$reverse[] = $newword[$i];
			}
			$output = implode("+", $reverse);
			return $output;
		} else {
			return $word;
		}
	}

	/**
	 * 拆分后的处理
	 */
	public function split2($word){
		$input = explode("+",$word);
		$newword=array();
		foreach ($input as $value) {
			//去掉带小括号的调试信息
			$word = strstr($value,"(",true);
			if($word == false){
				$word = $value;
			}
			if(mb_strlen($word,"UTF-8")>4){
				# 先看有没有中文意思
				//$this->log("先看有没有中文意思");
				if(UserDict::where('word',$word)->where('mean','<>','')->where('language','<>','my')->exists()){
					$newword[]=$word;
				}else{
					//$this->log("如果没有查巴缅替换拆分");
					#如果没有查巴缅替换拆分
					if(UserDict::where('word',$word)->where('dict_id','61f23efb-b526-4a8e-999e-076965034e60')->exists()){
						$pmPart = explode("+",UserDict::where('word',$word)->where('dict_id','61f23efb-b526-4a8e-999e-076965034e60')->value('factors')) ;
						foreach ($pmPart as  $pm) {
							# code...
							$newword[]=$pm;
						}
					}
					else{
						//$this->log("如果没有查规则变形");
						#如果没有查规则变形
						if(UserDict::where('word',$word)->where('source','_SYS_REGULAR_')->exists()){
							$rglPart = explode("+",UserDict::where('word',$word)->where('source','_SYS_REGULAR_')->value('factors')) ;
							#看巴缅有没有第一部分
							//$this->log("看巴缅有没有第一部分");
							if(UserDict::where('word',$rglPart[0])->where('dict_id','61f23efb-b526-4a8e-999e-076965034e60')->exists()){
								$pmPart = explode("+",UserDict::where('word',$rglPart[0])->where('dict_id','61f23efb-b526-4a8e-999e-076965034e60')->value('factors')) ;
								foreach ($pmPart as  $pm) {
									# code...
									$newword[]=$pm;
								}
							}
							else{
								#没有
								$newword[]=$rglPart[0];
							}
							$newword[]=$rglPart[1];
						}
						else{
							#还没有就认命了
							//$this->log("还没有就认命了");
							$newword[]=$word;
						}
					}
				}
			}
			else{
				$newword[]=$word;
			}

		}
		return implode("+",$newword);
	}


	/**
	 * 预处理连音词
	 */
	public function splitSandhi($word){
		$newWord = "";
		$firstWord=$word;
		do {
			$isFound = false;
			foreach ($this->sandhi2 as $key => $sandhi) {
				# code...
				$len = $sandhi["len"];
				$end = mb_substr($firstWord, 0 - $len, null, "UTF-8");
				if ($end == $sandhi["c"]) {
					$word1 = mb_substr($firstWord, 0, mb_strlen($firstWord, "UTF-8") - $len, "UTF-8") .$sandhi["a"];
					$word2 = $sandhi["b"];
					$newWord = $word2 . "-" .$newWord;
					$firstWord = $word1;
					$isFound=true;
					break;
				}
			}
		} while ($isFound);
		$newWord = $firstWord . "-" .$newWord;
		return mb_substr($newWord,0,-1, "UTF-8");
	}

	public function splitA($word){
        $caseman = new CaseMan();
		$output = array();
		//预处理连音词
		$word1 = $this->splitSandhi($word);
		# 处理双元音
		$this->log("处理双元音");
		$arrword = $this->splitDiphthong($word1);
		if (count($arrword) > 1) {
			array_push($output,['word'=>$word,'type'=>'.un.','grammar'=>'','parent'=>'','factors'=>implode("+", $arrword),'confidence'=>0.9999]);
		}

		foreach ($arrword as $oneword) {
            if(mb_strlen($oneword)<5){
                continue;
            }
			$this->result = array(); //清空递归程序的输出容器
            $node = ['word'=>"",'remain'=>$oneword,'children'=>[]];
			if(mb_strlen($oneword)>35){
				//长词使用快速切分 正向切分 不使用少见sandi规则
				$this->split($node, 0, true, 0.8, 0.9, 0, true, false);
				$min_result = 1;
			}else{
				$this->split($node, 0, false, 0.8, 0.9, 0, true, false);
				$min_result=2;
			}
            $path = [];
            $this->log($node);
            $this->get_result($node,$path);

			$this->log("正向切分结束 结果数量".count($this->result));

			if(count($this->result)<$min_result){
				//有效结果过少
                $node = ['word'=>"",'remain'=>$oneword,'children'=>[]];
				$this->split($node, 0, false, 0.2, 0.8, 0, true, true);
				$this->log("有效结果过少 再次正切".count($this->result) );
				if(count($this->result)<2){
                    $node = ['word'=>"",'remain'=>$oneword,'children'=>[]];
					$this->split($node, 0, false, 0.2, 0.8, 0, false, true);
					$this->log("有效结果过少 再次反切：结果数量" . count($this->result));
				}
			}

			$this->log("{$oneword}:" . count($this->result));
			if (count($this->result) > 0) {
				arsort($this->result); //按信心指数升序排序
				$iCount = 0;
				foreach ($this->result as $row => $value) {
					$factors = $row;
					if(strpos($row,']+') !== FALSE){
						$type = '.un.';
						$factors = \str_replace(['+[ṃ]+','[ṃ]+'],'ṃ+',$row);
					}else{
						$type = '.cp.';
					}
					$newword = ['word'=>$oneword,'type'=>$type,'grammar'=>'','parent'=>'','factors'=>$factors,'confidence'=>$value];
					array_push($output,$newword);

					if($iCount==0){
						//对于最优结果进行处理 找到base
						$wordWithType = ['word'=>$oneword,'type'=>'','grammar'=>'','parent'=>'','factors'=>$factors,'confidence'=>$value];

						$this->log("查找base");

						$factors = explode('+',$row);
						$endOfFactor = end($factors);
                        if(strpos($endOfFactor,"[") !== FALSE){
                            if(count($factors)>=2){
                                $endOfFactor = $factors[count($factors)-2];
                            }
                        }
						$this->log("结尾词：".$endOfFactor);

						//猜测单词的base
						$parents = $caseman->WordToBase($oneword,1,false);
						//找到结尾单词的base
						$end_parents = $caseman->WordToBase($endOfFactor);

						if(count($parents)>0){
							foreach ($parents as $base=>$case) {
								# code...
								if(count($end_parents)>0){
									foreach ($end_parents as $base2=>$case2) {
										if(\mb_substr($base2,-2)===\mb_substr($base,-2)){
											$this->log("{$base} ok");
											foreach ($case as $value) {
												# code...
												foreach ($case2 as $value2) {
													//验证语法信息是否正确
													if($value['type'] == $value2['type'] &&
                                                        substr($value['grammar'],0,3) === substr($value2['grammar'],0,3) &&
                                                        $value['confidence']>0.5){
														$wordWithType['type'] = $value['type'];
														$wordWithType['grammar'] = $value['grammar'];
														$wordWithType['factors'] = $value['factors'];
														$wordWithType['parent'] = $base;
														$wordWithType['confidence'] = $value2['confidence'];
														$this->log("word:{$wordWithType['word']} ; type:{$wordWithType['type']}; grammar:{$wordWithType['grammar']};parent:{$wordWithType['parent']}");
														array_push($output,$wordWithType);
													}
												}
											}
										}
									}
								}else{
									foreach ($case as $value) {
										$wordWithType['type'] = $value['type'];
										$wordWithType['grammar'] = $value['grammar'];
										$wordWithType['factors'] = $value['factors'];
										$wordWithType['parent'] = $base;
										$wordWithType['confidence'] = 0.1;
										array_push($output,$wordWithType);
									}
								}
							}
						}
					}
					//后处理 进一步切分没有意思的长词
					$this->log("后处理 进一步切分没有意思的长词");
					$new = $this->split2($row);
					if($new !== $row){
						$newword['factors'] = $new;
						array_push($output,$newword);
						#再处理一次
						$new2 = $this->split2($new);
						if($new2!==$new){
							$newword['factors'] = $new2;
							array_push($output,$newword);
						}
					}
					$iCount++;
					if ($iCount > $this->MAX_RESULT2) {
						break;
					}
				}
			} else {
                $this->log("{$oneword} 切分失败");
                $this->log("猜测可能的格位");
                //猜测单词的base
				$wordWithType = ['word'=>$oneword,'type'=>'','grammar'=>'','parent'=>'','factors'=>'','confidence'=>0];
                $parents = $caseman->WordToBase($oneword,1,false);
                foreach ($parents as $base=>$case) {
                    foreach ($case as $value) {
                        $wordWithType['type'] = $value['type'];
                        $wordWithType['grammar'] = $value['grammar'];
                        $wordWithType['factors'] = $value['factors'];
                        $wordWithType['parent'] = $base;
                        $wordWithType['confidence'] = $value['confidence'];
                        $this->log("word:{$wordWithType['word']} ; type:{$wordWithType['type']}; grammar:{$wordWithType['grammar']};parent:{$wordWithType['parent']}");
                        array_push($output,$wordWithType);
                    }
                }
			}
		}
		return $output;
	}

	public function setting($param=null){

	}

	public function getResult(){
		return $this->result;
	}

	public function debug($debug){
        $this->isDebug = $debug;
    }

	private function log($message){
		if ($this->isDebug) {
			Log::info($message);
		}
	}

	private function pushResult($word,$cf){
		array_push($this->result,array($word=>$cf));
	}
}