Supported Standards

Every transliteration is - wherever possible - done according to a given transliteration standard as defined by various national or international organisations, like ISO, DIN or GOST. Otherwise common national transliteration rules are applied.

The following standards are currently handled by Lingua::Translit:

Writing system: Cyrillic

Standard	Description	Reversible?
ISO 9	Cyrillic to Latin
DIN 1460 RUS	Cyrillic to Latin, Russian
DIN 1460 UKR	Cyrillic to Latin, Ukrainian
DIN 1460 BUL	Cyrillic to Latin, Bulgarian
Streamlined System BUL	Cyrillic to Latin, Bulgarian
GOST 7.79 RUS	Cyrillic to Latin, Russian
GOST 7.79 RUS OLD	Cyrillic to Latin with support for Old Russian (pre 1918), Russian
GOST 7.79 UKR	Cyrillic to Latin, Ukrainian

Writing system: Greek

Standard	Description	Reversible?
ISO 843	Greek to Latin
DIN 31634	Greek to Latin (academic)
Greeklish	Greek to Latin (phonetic)

Writing system: Latin

Standard	Description	Reversible?
Common CES	Czech without diacritics
Common DEU	German without umlauts/TODO: Ligatur
Common POL	Unaccented Polish
Common RON	Romanian without diacritics
Common SLK	Slovak without diacritics
Common SLV	Slovenian without diacritics

Writing system: Mongolian

Standard	Description	Reversible?
Common Classical MON	Classical Mongolian to Latin

Reversibility of transliterations

Some transliterations can only be applied in one direction. These lossy transliterations are not reversible, because the mapping of characters is ambiguous.

Example: The German word "Äpfel" would be transliterated as "Aepfel" according to the "Common DEU" standard - but it is not possible to reverse the direction of the transliteration, because the character sequence "ae" is also common without denoting the umlaut "ä", as in "Michael" or "Tetraeder".