natural/lib/natural/stemmers/indonesian/prefix_rules.js

General natural language (tokenizing, stemming (English, Russian, Spanish), part-of-speech tagging, sentiment analysis, classification, inflection, phonetics, tfidf, WordNet, jaro-winkler, Levenshtein distance, Dice's Coefficient) facilities for node.

/*
Copyright (c) 2017, Alif Bhaskoro, Andy Librian, R. Kukuh (Reimplemented from https://github.com/sastrawi/sastrawi)

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/

// a list of commonly used words that have little meaning and can be excluded
// from analysis.

const Removal = require('./removal')

// Make global variable for dictionary
const dictionary = loadDictionary()

function loadDictionary () {
  const fin = require('./data/kata-dasar.json')
  return new Set(fin.filter(Boolean))
}

// Find certain word in dictionary
function find (word) {
  return dictionary.has(word)
}

function PrefixRules () {
  const PrefixRules = this

  this.removal = undefined
  this.currentWord = undefined

  // Run the array of disambiguate rules on input word
  function runDisambiguator (disambiguateRules, word) {
    let result

    for (const i in disambiguateRules) {
      result = disambiguateRules[i](word)
      if (find(result)) {
        break
      }
    }

    if (result === undefined) {
      this.currentWord = word
      this.removal = undefined
      return this
    }

    return createResultObject(result, word, 'DP')
  }

  function createResultObject (result, word, type) {
    const removedPart = word.replace(result, '')
    const removal = new Removal(word, result, removedPart, type)

    this.removal = removal
    this.currentWord = result

    return this
  }

  PrefixRules.RemovePlainPrefix = function (word) {
    const result = word.replace(/^(di|ke|se)/, '')
    if (result !== word) {
      const removedPart = word.replace(result, '')

      const removal = new Removal(word, result, removedPart, 'DP')

      this.removal = removal
    } else {
      this.removal = undefined
    }
    this.currentWord = result
    return this
  }

  // RULE 1
  function disambiguateRule1A (word) {
    // Rule 1a : berV -> ber-V
    const matches = word.match(/^ber([aiueo].*)$/)
    if (matches) {
      return matches[1]
    }
  }

  function disambiguateRule1B (word) {
    // Rule 1b : berV -> be-rV
    const matches = word.match(/^ber([aiueo].*)$/)
    if (matches) {
      return 'r' + matches[1]
    }
  }

  PrefixRules.DisambiguatorPrefixRule1 = function (word) {
    // Push rules 1A & 1B
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule1A)
    disambiguateRules.push(disambiguateRule1B)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 2
  function disambiguateRule2 (word) {
    // Rule 2 : berCAP -> ber-CAP where C != 'r' AND P != 'er'
    const matches = word.match(/^ber([bcdfghjklmnpqrstvwxyz])([a-z])(.*)/)
    if (matches) {
      if (matches[3].match(/^er(.*)$/)) {
        return
      }
      return matches[1] + matches[2] + matches[3]
    }
  }

  PrefixRules.DisambiguatorPrefixRule2 = function (word) {
    // Push rule 2
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule2)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 3
  function disambiguateRule3 (word) {
    // Rule 3 : berCAerV -> ber-CAerV where C != 'r'
    const matches = word.match(/ber([bcdfghjklmnpqrstvwxyz])([a-z])er([aiueo])(.*)/)
    if (matches) {
      if (matches[1] === 'r') {
        return
      }
      return matches[1] + matches[2] + 'er' + matches[3] + matches[4]
    }
  }

  PrefixRules.DisambiguatorPrefixRule3 = function (word) {
    // Push rule 3
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule3)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 4
  function disambiguateRule4 (word) {
    // Rule 4 : belajar -> ajar
    if (word === 'belajar') {
      return 'ajar'
    }
  }

  PrefixRules.DisambiguatorPrefixRule4 = function (word) {
    // Push rule 4
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule4)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 5
  function disambiguateRule5 (word) {
    // Rule 5 : beC1erC2 -> be-C1erC2 where C1 != 'r'
    const matches = word.match(/be([bcdfghjklmnpqstvwxyz])(er[bcdfghjklmnpqrstvwxyz])(.*)$/)
    if (matches) {
      return matches[1] + matches[2] + matches[3]
    }
  }

  PrefixRules.DisambiguatorPrefixRule5 = function (word) {
    // Push rule 5
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule5)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 6
  function disambiguateRule6a (word) {
    // Rule 6a : terV -> ter-V
    const matches = word.match(/^ter([aiueo].*)$/)
    if (matches) {
      return matches[1]
    }
  }

  function disambiguateRule6b (word) {
    // Rule 6b : terV -> te-rV
    const matches = word.match(/^ter([aiueo].*)$/)
    if (matches) {
      return 'r' + matches[1]
    }
  }

  PrefixRules.DisambiguatorPrefixRule6 = function (word) {
    // Push rule 6
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule6a)
    disambiguateRules.push(disambiguateRule6b)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 7
  function disambiguateRule7 (word) {
    // Rule 7 : terCerv -> ter-CerV where C != 'r'
    const matches = word.match(/^ter([bcdfghjklmnpqrstvwxyz])er([aiueo].*)$/)
    if (matches) {
      if (matches[1] === 'r') {
        return
      }
      return matches[1] + 'er' + matches[2]
    }
  }

  PrefixRules.DisambiguatorPrefixRule7 = function (word) {
    // Push rule 7
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule7)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 8
  function disambiguateRule8 (word) {
    // Rule 8 : terCP -> ter-CP where C != 'r' and P != 'er'
    const matches = word.match(/^ter([bcdfghjklmnpqrstvwxyz])(.*)$/)
    if (matches) {
      if (matches[1] === 'r' || matches[2].match(/^er(.*)$/)) {
        return
      }
      return matches[1] + matches[2]
    }
  }

  PrefixRules.DisambiguatorPrefixRule8 = function (word) {
    // Push rule 8
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule8)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 9
  function disambiguateRule9 (word) {
    // Rule 9 : te-C1erC2 -> te-C1erC2 where C1 != 'r'
    const matches = word.match(/^te([bcdfghjklmnpqrstvwxyz])er([bcdfghjklmnpqrstvwxyz])(.*)$/)
    if (matches) {
      if (matches[1] === 'r') {
        return
      }
      return matches[1] + 'er' + matches[2] + matches[3]
    }
  }

  PrefixRules.DisambiguatorPrefixRule9 = function (word) {
    // Push rule 9
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule9)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 10
  function disambiguateRule10 (word) {
    // Rule 10 : me{l|r|w|y}V -> me-{l|r|w|y}V
    const matches = word.match(/^me([lrwy])([aiueo])(.*)$/)
    if (matches) {
      return matches[1] + matches[2] + matches[3]
    }
  }

  PrefixRules.DisambiguatorPrefixRule10 = function (word) {
    // Push rule 10
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule10)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 11
  function disambiguateRule11 (word) {
    // Rule 11 : mem{b|f|v} -> mem-{b|f|v}
    const matches = word.match(/^mem([bfv])(.*)$/)
    if (matches) {
      return matches[1] + matches[2]
    }
  }

  PrefixRules.DisambiguatorPrefixRule11 = function (word) {
    // Push rule 11
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule11)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 12
  function disambiguateRule12 (word) {
    // Nazief and Adriani Rule 12 : beC1erC2 -> be-C1erC2 where C1 != 'r'
    // Modified by Jelita Asian's CS Rule 12 : mempe -> mem-pe to stem mempengaruhi
    const matches = word.match(/^mempe(.*)$/)
    if (matches) {
      return 'pe' + matches[1]
    }
  }

  PrefixRules.DisambiguatorPrefixRule12 = function (word) {
    // Push rule 12
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule12)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 13
  function disambiguateRule13a (word) {
    // Rule 13a : mem{rV|V} -> me-m{rV|V}
    const matches = word.match(/^mem([aiueo])(.*)$/)
    if (matches) {
      return 'm' + matches[1] + matches[2]
    }
  }

  function disambiguateRule13b (word) {
    // Rule 13b : mem{rV|V} -> me-p{rV|V}
    const matches = word.match(/^mem([aiueo])(.*)$/)
    if (matches) {
      return 'p' + matches[1] + matches[2]
    }
  }

  PrefixRules.DisambiguatorPrefixRule13 = function (word) {
    // Push rule 13
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule13a)
    disambiguateRules.push(disambiguateRule13b)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 14
  function disambiguateRule14 (word) {
    /* Rule 14 modified by Andy Librian : men{c|d|j|s|t|z} -> men-{c|d|j|s|t|z}
        in order to stem mentaati

        Rule 14 modified by ECS: men{c|d|j|s|z} -> men-{c|d|j|s|z}
        in order to stem mensyaratkan, mensyukuri

        Original CS Rule no 14 was : men{c|d|j|z} -> men-{c|d|j|z} */
    const matches = word.match(/^men([cdjstz])(.*)$/)
    if (matches) {
      return matches[1] + matches[2]
    }
  }

  PrefixRules.DisambiguatorPrefixRule14 = function (word) {
    // Push rule 14
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule14)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 15
  function disambiguateRule15a (word) {
    // Rule 15a : men{V} -> me-n{V}
    const matches = word.match(/^men([aiueo])(.*)$/)
    if (matches) {
      return 'n' + matches[1] + matches[2]
    }
  }

  function disambiguateRule15b (word) {
    // Rule 15b : men{V} -> me-t{V}
    const matches = word.match(/^men([aiueo])(.*)$/)
    if (matches) {
      return 't' + matches[1] + matches[2]
    }
  }

  PrefixRules.DisambiguatorPrefixRule15 = function (word) {
    // Push rule 15
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule15a)
    disambiguateRules.push(disambiguateRule15b)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 16
  function disambiguateRule16 (word) {
    // Original Nazief and Adriani's Rule 16 : meng{g|h|q} -> meng-{g|h|q}
    // Modified Jelita Asian's CS Rule 16 : meng{g|h|q|k} -> meng-{g|h|q|k} to stem mengkritik
    const matches = word.match(/^meng([g|h|q|k])(.*)$/)
    if (matches) {
      return matches[1] + matches[2]
    }
  }

  PrefixRules.DisambiguatorPrefixRule16 = function (word) {
    // Push rule 16
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule16)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 17
  function disambiguateRule17a (word) {
    // Rule 17a : mengV -> meng-V
    const matches = word.match(/^meng([aiueo])(.*)$/)
    if (matches) {
      return matches[1] + matches[2]
    }
  }

  function disambiguateRule17b (word) {
    // Rule 17b : mengV -> meng-kV
    const matches = word.match(/^meng([aiueo])(.*)$/)
    if (matches) {
      return 'k' + matches[1] + matches[2]
    }
  }

  function disambiguateRule17c (word) {
    // Rule 17c : mengV -> meng-V- where V = 'e'
    const matches = word.match(/^menge(.*)$/)
    if (matches) {
      return matches[1]
    }
  }

  function disambiguateRule17d (word) {
    // Rule 17d : mengV -> me-ngV
    const matches = word.match(/^meng([aiueo])(.*)$/)
    if (matches) {
      return 'ng' + matches[1] + matches[2]
    }
  }

  PrefixRules.DisambiguatorPrefixRule17 = function (word) {
    // Push rule 17
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule17a)
    disambiguateRules.push(disambiguateRule17b)
    disambiguateRules.push(disambiguateRule17c)
    disambiguateRules.push(disambiguateRule17d)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 18
  function disambiguateRule18a (word) {
    // Rule 18a : menyV -> me-nyV to stem menyala -> nyala
    const matches = word.match(/^meny([aiueo])(.*)$/)
    if (matches) {
      return 'ny' + matches[1] + matches[2]
    }
  }

  function disambiguateRule18b (word) {
    // Original Rule 18b : menyV -> meny-sV
    // Modified by CC (shifted into 18b, see also 18a)
    const matches = word.match(/^meny([aiueo])(.*)$/)
    if (matches) {
      return 's' + matches[1] + matches[2]
    }
  }

  PrefixRules.DisambiguatorPrefixRule18 = function (word) {
    // Push rule 18
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule18a)
    disambiguateRules.push(disambiguateRule18b)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 19
  function disambiguateRule19 (word) {
    // Original Rule 19 : mempV -> mem-pV where V != 'e'
    // Modified Rule 19 by ECS : mempA -> mem-pA where A != 'e' in order to stem memproteksi
    const matches = word.match(/^memp([abcdfghijklmopqrstuvwxyz])(.*)$/)
    if (matches) {
      return 'p' + matches[1] + matches[2]
    }
  }

  PrefixRules.DisambiguatorPrefixRule19 = function (word) {
    // Push rule 19
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule19)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 20
  function disambiguateRule20 (word) {
    // Rule 20 : pe{w|y}V -> pe-{w|y}V
    const matches = word.match(/^pe([wy])([aiueo])(.*)$/)
    if (matches) {
      return matches[1] + matches[2] + matches[3]
    }
  }

  PrefixRules.DisambiguatorPrefixRule20 = function (word) {
    // Push rule 20
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule20)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 21
  function disambiguateRule21a (word) {
    // Rule 21a : perV -> per-V
    const matches = word.match(/^per([aiueo])(.*)$/)
    if (matches) {
      return matches[1] + matches[2]
    }
  }

  function disambiguateRule21b (word) {
    // Rule 21b : perV -> pe-rV
    const matches = word.match(/^pe(r[aiueo])(.*)$/)
    if (matches) {
      return matches[1] + matches[2]
    }
  }

  PrefixRules.DisambiguatorPrefixRule21 = function (word) {
    // Push rule 21
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule21a)
    disambiguateRules.push(disambiguateRule21b)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 23
  function disambiguateRule23 (word) {
    // Rule 23 : perCAP -> per-CAP where C != 'r' AND P != 'er'
    const matches = word.match(/^per([bcdfghjklmnpqrstvwxyz])([a-z])(.*)$/)
    if (matches) {
      if (matches[3].match(/^er(.*)$/)) {
        return
      }
      return matches[1] + matches[2] + matches[3]
    }
  }

  PrefixRules.DisambiguatorPrefixRule23 = function (word) {
    // Push rule 23
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule23)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 24
  function disambiguateRule24 (word) {
    // Rule 24 : perCAerV -> per-CAerV where C != 'r'
    const matches = word.match(/^per([bcdfghjklmnpqrstvwxyz])([a-z])er([aiueo])(.*)$/)
    if (matches) {
      if (matches[1] === 'r') {
        return
      }
      return matches[1] + matches[2] + 'er' + matches[3] + matches[4]
    }
  }

  PrefixRules.DisambiguatorPrefixRule24 = function (word) {
  // Push rule 24
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule24)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 25
  function disambiguateRule25 (word) {
    // Rule 25 : pem{b|f|v} -> pem-{b|f|v}
    const matches = word.match(/^pem([bfv])(.*)$/)
    if (matches) {
      return matches[1] + matches[2]
    }
  }

  PrefixRules.DisambiguatorPrefixRule25 = function (word) {
    // Push rule 25
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule25)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 26
  function disambiguateRule26a (word) {
    // Rule 26a : pem{rV|V} -> pe-m{rV|V}
    const matches = word.match(/^pem([aiueo])(.*)$/)
    if (matches) {
      return 'm' + matches[1] + matches[2]
    }
  }

  function disambiguateRule26b (word) {
    // Rule 26b : pem{rV|V} -> pe-p{rV|V}
    const matches = word.match(/^pem([aiueo])(.*)$/)
    if (matches) {
      return 'p' + matches[1] + matches[2]
    }
  }

  PrefixRules.DisambiguatorPrefixRule26 = function (word) {
    // Push rule 26
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule26a)
    disambiguateRules.push(disambiguateRule26b)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 27
  function disambiguateRule27 (word) {
    // Rule 27 : pen{c|d|j|s|t|z} -> pen-{c|d|j|s|t|z}
    const matches = word.match(/^pen([cdjstz])(.*)$/)
    if (matches) {
      return matches[1] + matches[2]
    }
  }

  PrefixRules.DisambiguatorPrefixRule27 = function (word) {
    // Push rule 27
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule27)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 28
  function disambiguateRule28a (word) {
    // Rule 28a : pen{V} -> pe-n{V}
    const matches = word.match(/^pen([aiueo])(.*)$/)
    if (matches) {
      return 'n' + matches[1] + matches[2]
    }
  }

  function disambiguateRule28b (word) {
    // Rule 28b : pen{V} -> pe-t{V}
    const matches = word.match(/^pen([aiueo])(.*)$/)
    if (matches) {
      return 't' + matches[1] + matches[2]
    }
  }

  PrefixRules.DisambiguatorPrefixRule28 = function (word) {
    // Push rule 28
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule28a)
    disambiguateRules.push(disambiguateRule28b)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 29
  function disambiguateRule29 (word) {
    // Rule 29 by ECS : pengC -> peng-C
    const matches = word.match(/^peng([bcdfghjklmnpqrstvwxyz])(.*)$/)
    if (matches) {
      return matches[1] + matches[2]
    }
  }

  PrefixRules.DisambiguatorPrefixRule29 = function (word) {
    // Push rule 29
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule29)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 30
  function disambiguateRule30a (word) {
    // Rule 30a : pengV -> peng-V
    const matches = word.match(/^peng([aiueo])(.*)$/)
    if (matches) {
      return matches[1] + matches[2]
    }
  }

  function disambiguateRule30b (word) {
    // Rule 30b : pengV -> peng-kV
    const matches = word.match(/^peng([aiueo])(.*)$/)
    if (matches) {
      return 'k' + matches[1] + matches[2]
    }
  }

  function disambiguateRule30c (word) {
    // Rule 30c : pengV -> pengV- where V = 'e'
    const matches = word.match(/^penge(.*)$/)
    if (matches) {
      return matches[1]
    }
  }

  PrefixRules.DisambiguatorPrefixRule30 = function (word) {
    // Push rule 30
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule30a)
    disambiguateRules.push(disambiguateRule30b)
    disambiguateRules.push(disambiguateRule30c)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 31
  function disambiguateRule31a (word) {
    // Rule 31a : penyV -> pe-nyV
    const matches = word.match(/^peny([aiueo])(.*)$/)
    if (matches) {
      return 'ny' + matches[1] + matches[2]
    }
  }

  function disambiguateRule31b (word) {
    // Original Rule 31 : penyV -> peny-sV
    const matches = word.match(/^peny([aiueo])(.*)$/)
    if (matches) {
      return 's' + matches[1] + matches[2]
    }
  }

  PrefixRules.DisambiguatorPrefixRule31 = function (word) {
    // Push rule 31
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule31a)
    disambiguateRules.push(disambiguateRule31b)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 32
  function disambiguateRule32 (word) {
    // Rule 32 : pelV -> pe-lV except pelajar -> ajar
    if (word === 'pelajar') {
      return 'ajar'
    }
    const matches = word.match(/^pe(l[aiueo])(.*)/)
    if (matches) {
      return matches[1] + matches[2]
    }
  }

  PrefixRules.DisambiguatorPrefixRule32 = function (word) {
    // Push rule 32
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule32)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 34
  function disambiguateRule34 (word) {
    // Rule 34 : peCP -> pe-CP where C != {r|w|y|l|m|n} and P != 'er'
    const matches = word.match(/^pe([bcdfghjklmnpqrstvwxyz])(.*)$/)
    if (matches) {
      if (matches[2].match(/^er(.*)$/)) {
        return
      }
      return matches[1] + matches[2]
    }
  }

  PrefixRules.DisambiguatorPrefixRule34 = function (word) {
    // Push rule 34
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule34)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 35
  function disambiguateRule35 (word) {
    // Rule 35 : terC1erC2 -> ter-C1erC2 where C1 != {r}
    const matches = word.match(/^ter([bcdfghjkpqstvxz])(er[bcdfghjklmnpqrstvwxyz])(.*)$/)
    if (matches) {
      return matches[1] + matches[2] + matches[3]
    }
  }

  PrefixRules.DisambiguatorPrefixRule35 = function (word) {
    // Push rule 35
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule35)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 36
  function disambiguateRule36 (word) {
    // Rule 36 : peC1erC2 -> pe-C1erC2 where C1 != {r|w|y|l|m|n}
    const matches = word.match(/^pe([bcdfghjkpqstvxz])(er[bcdfghjklmnpqrstvwxyz])(.*)$/)
    if (matches) {
      return matches[1] + matches[2] + matches[3]
    }
  }

  PrefixRules.DisambiguatorPrefixRule36 = function (word) {
    // Push rule 36
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule36)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 37
  function disambiguateRule37a (word) {
    // Rule 37a : CerV -> CerV
    const matches = word.match(/^([bcdfghjklmnpqrstvwxyz])(er[aiueo])(.*)$/)
    if (matches) {
      return matches[1] + matches[2] + matches[3]
    }
  }

  function disambiguateRule37b (word) {
    // Rule 37b : CerV -> CV
    const matches = word.match(/^([bcdfghjklmnpqrstvwxyz])er([aiueo])(.*)$/)
    if (matches) {
      return matches[1] + matches[2] + matches[3]
    }
  }

  PrefixRules.DisambiguatorPrefixRule37 = function (word) {
    // Push rule 37
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule37a)
    disambiguateRules.push(disambiguateRule37b)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 38
  function disambiguateRule38a (word) {
    // Rule 38a : CelV -> CelV
    const matches = word.match(/^([bcdfghjklmnpqrstvwxyz])(el[aiueo])(.*)$/)
    if (matches) {
      return matches[1] + matches[2] + matches[3]
    }
  }

  function disambiguateRule38b (word) {
    // Rule 38b : CelV -> CV
    const matches = word.match(/^([bcdfghjklmnpqrstvwxyz])el([aiueo])(.*)$/)
    if (matches) {
      return matches[1] + matches[2] + matches[3]
    }
  }

  PrefixRules.DisambiguatorPrefixRule38 = function (word) {
    // Push rule 38
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule38a)
    disambiguateRules.push(disambiguateRule38b)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 39
  function disambiguateRule39a (word) {
    // Rule 39a : CemV -> CemV
    const matches = word.match(/^([bcdfghjklmnpqrstvwxyz])(em[aiueo])(.*)$/)
    if (matches) {
      return matches[1] + matches[2] + matches[3]
    }
  }

  function disambiguateRule39b (word) {
    // Rule 39b : CemV -> CV
    const matches = word.match(/^([bcdfghjklmnpqrstvwxyz])em([aiueo])(.*)$/)
    if (matches) {
      return matches[1] + matches[2] + matches[3]
    }
  }

  PrefixRules.DisambiguatorPrefixRule39 = function (word) {
    // Push rule 39
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule39a)
    disambiguateRules.push(disambiguateRule39b)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 40
  function disambiguateRule40a (word) {
    // Rule 40a : CinV -> CinV
    const matches = word.match(/^([bcdfghjklmnpqrstvwxyz])(in[aiueo])(.*)$/)
    if (matches) {
      return matches[1] + matches[2] + matches[3]
    }
  }

  function disambiguateRule40b (word) {
    // Rule 40b : CinV -> CV
    const matches = word.match(/^([bcdfghjklmnpqrstvwxyz])in([aiueo])(.*)$/)
    if (matches) {
      return matches[1] + matches[2] + matches[3]
    }
  }

  PrefixRules.DisambiguatorPrefixRule40 = function (word) {
    // Push rule 40
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule40a)
    disambiguateRules.push(disambiguateRule40b)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 41
  function disambiguateRule41 (word) {
    // Rule 41 : kuA -> ku-A
    const matches = word.match(/^ku(.*)$/)
    if (matches) {
      return matches[1]
    }
  }

  PrefixRules.DisambiguatorPrefixRule41 = function (word) {
    // Push rule 41
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule41)

    return runDisambiguator(disambiguateRules, word)
  }

  // RULE 42
  function disambiguateRule42 (word) {
    // Rule 42 : kauA -> kau-A
    const matches = word.match(/^kau(.*)$/)
    if (matches) {
      return matches[1]
    }
  }

  PrefixRules.DisambiguatorPrefixRule42 = function (word) {
    // Push rule 42
    const disambiguateRules = []
    disambiguateRules.push(disambiguateRule42)

    return runDisambiguator(disambiguateRules, word)
  }
}

module.exports = PrefixRules

// Initalize prefix rules array
const rules = []
const pr = new PrefixRules()

// Push all rules
rules.push(pr.RemovePlainPrefix)
rules.push(pr.DisambiguatorPrefixRule1)
rules.push(pr.DisambiguatorPrefixRule2)
rules.push(pr.DisambiguatorPrefixRule3)
rules.push(pr.DisambiguatorPrefixRule4)
rules.push(pr.DisambiguatorPrefixRule5)
rules.push(pr.DisambiguatorPrefixRule6)
rules.push(pr.DisambiguatorPrefixRule7)
rules.push(pr.DisambiguatorPrefixRule8)
rules.push(pr.DisambiguatorPrefixRule9)
rules.push(pr.DisambiguatorPrefixRule10)
rules.push(pr.DisambiguatorPrefixRule11)
rules.push(pr.DisambiguatorPrefixRule12)
rules.push(pr.DisambiguatorPrefixRule13)
rules.push(pr.DisambiguatorPrefixRule14)
rules.push(pr.DisambiguatorPrefixRule15)
rules.push(pr.DisambiguatorPrefixRule16)
rules.push(pr.DisambiguatorPrefixRule17)
rules.push(pr.DisambiguatorPrefixRule18)
rules.push(pr.DisambiguatorPrefixRule19)
rules.push(pr.DisambiguatorPrefixRule20)
rules.push(pr.DisambiguatorPrefixRule21)
rules.push(pr.DisambiguatorPrefixRule23)
rules.push(pr.DisambiguatorPrefixRule24)
rules.push(pr.DisambiguatorPrefixRule25)
rules.push(pr.DisambiguatorPrefixRule26)
rules.push(pr.DisambiguatorPrefixRule27)
rules.push(pr.DisambiguatorPrefixRule28)
rules.push(pr.DisambiguatorPrefixRule29)
rules.push(pr.DisambiguatorPrefixRule30)
rules.push(pr.DisambiguatorPrefixRule31)
rules.push(pr.DisambiguatorPrefixRule32)
rules.push(pr.DisambiguatorPrefixRule34)
rules.push(pr.DisambiguatorPrefixRule35)
rules.push(pr.DisambiguatorPrefixRule36)
rules.push(pr.DisambiguatorPrefixRule37)
rules.push(pr.DisambiguatorPrefixRule38)
rules.push(pr.DisambiguatorPrefixRule39)
rules.push(pr.DisambiguatorPrefixRule40)
rules.push(pr.DisambiguatorPrefixRule41)
rules.push(pr.DisambiguatorPrefixRule42)

PrefixRules.rules = rules