Normalization

This topic describes the programing required for the Normalization services.

Normalization is also referred to as decomposition or composition. The normalization service is called using a stub routine named CUNLNORM for AMODE (31) and CUN4LNOR for AMODE (64). Normalization allows the decomposition or composition of a Unicode Standard input string. Normalization is described in "Unicode Technical Report #15: Unicode Normalization Forms", which is available at http://www.unicode.org/unicode/reports/tr15.

Normalization rules are based on the following Unicode Standard versions:

Table 1. Unicode version table
Unicode version	Type	URL
UNI301	UnicodeData-3.0.1.txt	http://www.unicode.org/Public/3.0-Update1/UnicodeData-3.0.1.txt
UNI301	CompositionExclusions-2.txt	http://www.unicode.org/Public/3.0-Update1/CompositionExclusions-2.txt
UNI320	UnicodeData-3.2.0.txt	http://www.unicode.org/Public/3.2-Update/UnicodeData-3.2.0.txt
UNI320	CompositionExclusions-3.2.0.txt	http://www.unicode.org/Public/3.2-Update/CompositionExclusions-3.2.0.txt
UNI401	UnicodeData-4.0.1.txt	http://www.unicode.org/Public/4.0-Update1/UnicodeData-4.0.1.txt
UNI401	CompositionExclusions-4.0.0.txt	http://www.unicode.org/Public/4.0-Update/CompositionExclusions-4.0.0.txt
UNI410	UnicodeData.txt	http://www.unicode.org/Public/4.1.0/ucd/UnicodeData.txt
UNI410	CompositionExclusions.txt	http://www.unicode.org/Public/4.1.0/ucd/CompositionExclusions.txt
UNI600	UnicodeData.txt	http://www.unicode.org/Public/6.0.0/ucd/UnicodeData.txt
UNI600	CompositionExclusions.txt	http://www.unicode.org/Public/6.0.0/ucd/CompositionExclusions.txt

Normalization can be activated by specifying the NORMALIZE control statement in the input data set for the image generator. For detailed information see Creating a conversion image and Normalization conversion. The normalization environment can also be dynamically activated when a conversion request is performed and the requested conversion has not been previously loaded.