ICU 75.1 Manual

NAME¶

gensprep - compile StringPrep data from files filtered by filterRFC3454.pl

SYNOPSIS¶

gensprep [ -h, -?, --help ] [ -v, --verbose ] [ -c, --copyright ] [ -s, --sourcedir source ] [ -d, --destdir destination ]

DESCRIPTION¶

gensprep reads filtered RFC 3454 files and compiles their information into a binary form. The resulting file, <name>.icu, can then be read directly by ICU, or used by pkgdata(8) for incorporation into a larger archive or library.

The files read by gensprep are described in the FILES section.

OPTIONS¶

-h, -?, --help: Print help about usage and exit.
-v, --verbose: Display extra informative messages during execution.
-c, --copyright: Include a copyright notice into the binary data.
-s, --sourcedir source: Set the source directory to source. The default source directory is specified by the environment variable ICU_DATA.
-d, --destdir destination: Set the destination directory to destination. The default destination directory is specified by the environment variable ICU_DATA.

ENVIRONMENT¶

ICU_DATA: Specifies the directory containing ICU data. Defaults to /usr/share/icu/75.1/. Some tools in ICU depend on the presence of the trailing slash. It is thus important to make sure that it is present if ICU_DATA is set.

FILES¶

The following files are read by gensprep and are looked for in the source /misc for rfc3454_*.txt files and in source /unidata for NormalizationCorrections.txt.

rfc3453_A_1.txt: Contains the list of unassigned codepoints in Unicode version 3.2.0....
rfc3454_B_1.txt: Contains the list of code points that are commonly mapped to nothing....
rfc3454_B_2.txt: Contains the list of mappings for casefolding of code points when Normalization form NFKC is specified....
rfc3454_C_X.txt: Contains the list of code points that are prohibited for IDNA.
NormalizationCorrections.txt: Contains the list of code points whose normalization has changed since Unicode Version 3.2.0.

VERSION¶

75.1