Delphi DLL

Detect the Primary Language Group of an Email

Demonstrates the read-only Chilkat Email.Language property, which identifies the primary language group detected in the email's subject and body text, returning values such as latin1, russian, or japanese. The Subject has the greatest influence on the result. This example sets English text and reads the detected language.

Background: This is a heuristic based on Unicode: every character belongs to a Unicode "block" (Latin, Cyrillic, Greek, CJK, etc.), and Chilkat classifies the message by which blocks its characters fall into. The goal is practical — choosing a suitable charset/encoding for the text — not formal linguistic detection. It does not read the MIME Content-Language header, and it ignores characters in address and other header fields.

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Delphi DLL

var
email: HCkEmail;

begin
//  Demonstrates the read-only Email.Language property, a character-based
//  heuristic that identifies the primary language group detected in the
//  email's subject and body text (e.g. latin1, russian, japanese, ...).

email := CkEmail_Create();

CkEmail_putSubject(email,'Hello, this is an English subject line.');
CkEmail_putBody(email,'This is the body text, written in English.');

//  The Subject has the greatest influence on the result.
Memo1.Lines.Add('Language = ' + CkEmail__language(email));

CkEmail_Dispose(email);