ICU data files

These are files copied from the ICU project that contain various types of data, like character properties.

How to update

Not all data files are immediately available in the source code, but need to be built first. This applies to the character / word break tables.

Copy from source data

The icu4c/source/data/in directory in the source distribution contains the following ICU data files we use:

pnames.icu
ubidi.icu
ucase.icu
unames.icu
ulayout.icu
uprops.icu
nfc.nrm
nfkc.nrm
nfkc_cf.nrm

The character and word break table need to be compiled before they can be copied.

In icu4c/source run:

./configure --with-data-packaging=files
make

This will compile the character and word break data into a binary file that we can use. Once built, the following files we use are available in icu4c/source/data/out/build/icudt<XX>l/brkitr:

char.brk
word.brk