Chinese breaks multi language detection

[LutzSteinborn]

Hello,
it looks like that chinese in a text breaks multi language detection. I know: its experimental, but it works most of the time pretty good.
Example:
`text="Płaszczowo-rurowe wymienniki ciepła Uszczelkowe der blaue himmel über berlin 中文 the quick brown fox jumps over the lazy dog"

detector=LanguageDetectorBuilder.from_languages(Language.ENGLISH, Language.GERMAN, Language.POLISH).build()
detector.detect_multiple_languages_of(text)
[DetectionResult(start_index=0, end_index=48, word_count=4, language=Language.POLISH), DetectionResult(start_index=48, end_index=77, word_count=5, language=Language.GERMAN)]
`

[pemistahl]

Hi Lutz, thank you for your report. I will try to improve the multi language detection algorithm in future releases. Your example might help in this respect.

[pemistahl]

It turns out that the cause of this issue is the same as for the issue #154 which I've just fixed with commit 67fdebc.

The output of your code after the fix is:

[
  DetectionResult(start_index=0, end_index=48, word_count=4, language=Language.POLISH), 
  DetectionResult(start_index=48, end_index=80, word_count=7, language=Language.GERMAN), 
  DetectionResult(start_index=80, end_index=123, word_count=9, language=Language.ENGLISH)
]

POLISH Płaszczowo-rurowe wymienniki ciepła Uszczelkowe 
GERMAN der blaue himmel über berlin 中文 
ENGLISH the quick brown fox jumps over the lazy dog