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Client APIs and toolsYou can use the HCL Informix® implementation of client APIs to develop applications for Informix® database servers.
GLS User's GuideThe Informix® GLS User's Guide describes the Global Language Support (GLS) feature available in Informix® products.
Informix® ESQL/C featuresThese topics explain how the GLS feature affects Informix® ESQL/C, an SQL application programming interface (API).
Handle non-ASCII charactersThe Informix® ESQL/C processors obtain the code set for use in Informix® ESQL/C source files from the client locale.
Non-ASCII characters in ESQL/C source filesThe Informix® ESQL/C processor, esql, accepts C source programs that are written in the client code set (the code set of the client locale). The Informix® ESQL/C preprocessor, esqlc, can accept non-ASCII characters (8-bit and multibyte) in the Informix® ESQL/C source code as long as the client code set defines them.

Non-ASCII characters in ESQL/C source files

The Informix® ESQL/C processor, esql, accepts C source programs that are written in the client code set (the code set of the client locale). The Informix ESQL/C preprocessor, esqlc, can accept non-ASCII characters (8-bit and multibyte) in the Informix ESQL/C source code as long as the client code set defines them.

The capabilities of your C compiler, however, might limit your ability to use non-ASCII characters within the Informix ESQL/C source file. If the C compiler does not fully support non-ASCII characters, it might not successfully compile the Informix ESQL/C program that contains these characters. To provide support for common non-ASCII limitations of C compilers, Informix ESQL/C provides the Informix ESQL/C filter that is called esqlmf.

This section provides the following information about the Informix ESQL/C filter:

How the Informix ESQL/C filter processes non-ASCII characters
How you invoke the Informix ESQL/C filter

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