Romanize failed in some examples

[tann9949]

I was trying to romanize the word
จรวยพร
but the library raise an IndexError

from pythainlp.transliterate import romanize

romanize('จรวยพร')

I was expecting the results to be something like 'jaruayporn' or something similar but there's an error occured

---------------------------------------------------------------------------
IndexError                                Traceback (most recent call last)
<ipython-input-214-ffa4a144ac59> in <module>
----> 1 romanize('จรวยพร')

~/.env/lib/python3.7/site-packages/pythainlp/transliterate/core.py in romanize(text, engine)
     50         from .royin import romanize
     51 
---> 52     return romanize(text)
     53 
     54 

~/.env/lib/python3.7/site-packages/pythainlp/transliterate/royin.py in romanize(text)
    224     """
    225     words = word_tokenize(text)
--> 226     romanized_words = [_romanize(word) for word in words]
    227 
    228     return "".join(romanized_words)

~/.env/lib/python3.7/site-packages/pythainlp/transliterate/royin.py in <listcomp>(.0)
    224     """
    225     words = word_tokenize(text)
--> 226     romanized_words = [_romanize(word) for word in words]
    227 
    228     return "".join(romanized_words)

~/.env/lib/python3.7/site-packages/pythainlp/transliterate/royin.py in _romanize(word)
    208         word = "".join(word)
    209 
--> 210     word = _replace_consonants(word, consonants)
    211 
    212     return word

~/.env/lib/python3.7/site-packages/pythainlp/transliterate/royin.py in _replace_consonants(word, consonants)
    167                 )
    168                 i += 1
--> 169         elif consonants[i] == _RO_RUA and word[i] == _RO_RUA:
    170             if i + 1 == len(word):
    171                 word = word.replace(

IndexError: string index out of range

Here's my environment configuration:

• python 3.7.6
• mac OS Catalina
• pythainlp version 2.2.4