Last change
on this file since bdd6491 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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File size:
1.1 KB
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1 | //boyer-moore?
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2 | module.exports = function bm(buf,search,offset){
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3 | var m = 0, j = 0
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4 | var table = []
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5 |
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6 | var ret = -1;
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7 | for(var i=offset||0;i<buf.length;++i){
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8 | console.log('i',i)
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9 |
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10 | table[i] = [[i,0]]
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11 | if(buf[i] === search[0]) {
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12 | for(j = search.length-1;j>0;--j){
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13 | table[i].push([i+j,j])
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14 | console.log('j',j)
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15 | if(buf[i+j] !== search[j]) {
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16 |
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17 | //i += j
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18 | j = -1
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19 | break
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20 | }
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21 | }
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22 | if(j === 0) {
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23 | ret = i
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24 | break
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25 | }
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26 | }
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27 | }
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28 |
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29 | console.log(table)
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30 | renderTable(table,buf,search)
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31 | return ret
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32 | }
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33 |
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34 |
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35 | var chalk = require('chalk')
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36 | function renderTable(table,buf,search){
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37 | var s = ''
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38 |
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39 | console.log('-----')
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40 | console.log('search:',search)
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41 | console.log('-----')
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42 | console.log(buf+'')
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43 |
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44 | table.forEach(function(a){
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45 | if(!a) return;// console.log('')
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46 | a.forEach(function(v){
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47 | if(!v) return;
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48 | var pad = ''
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49 | while(pad.length < v[0]){
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50 | pad += ' '
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51 | }
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52 | if(search[v[1]] === buf[v[0]]) console.log(pad+chalk.green(search[v[1]]))
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53 | else console.log(pad+chalk.red(search[v[1]]))
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54 |
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55 | })
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56 | })
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57 | console.log('-----')
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58 | }
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