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LibUnicode: Introduce a Unicode library for interacting with UCD files

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The Unicode standard publishes the Unicode Character Database (UCD) with
information about every code point, such as each code point's upper case
mapping. LibUnicode exists to download and parse UCD files at build time
and to provide accessors to that data.

As a start, LibUnicode includes upper- and lower-case code point
converters.
This commit is contained in:
Timothy Flynn
2021-07-25 15:10:51 -04:00
committed by Linus Groh
parent 83f88df757
commit 4dda3edc9e
Notes: sideshowbarker 2024-07-18 08:18:41 +09:00 
Author: https://github.com/trflynn89
Commit: https://github.com/SerenityOS/serenity/commit/4dda3edc9e8
Pull-request: https://github.com/SerenityOS/serenity/pull/9004
Reviewed-by: https://github.com/linusg ✅
11 changed files with 473 additions and 0 deletions
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36
Userland/Libraries/LibUnicode/unicode_data.cmake Normal file
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option(ENABLE_UNICODE_DATABASE_DOWNLOAD "Enable download of Unicode UCD files at build time" ON)
set(UNICODE_DATA_URL https://www.unicode.org/Public/13.0.0/ucd/UnicodeData.txt)
set(UNICODE_DATA_PATH ${CMAKE_BINARY_DIR}/UCD/UnicodeData.txt)
if (ENABLE_UNICODE_DATABASE_DOWNLOAD)
if (NOT EXISTS ${UNICODE_DATA_PATH})
message(STATUS "Downloading UCD UnicodeData.txt from ${UNICODE_DATA_URL}...")
file(DOWNLOAD ${UNICODE_DATA_URL} ${UNICODE_DATA_PATH} INACTIVITY_TIMEOUT 10)
endif()
set(UNICODE_GENERATOR CodeGenerators/GenerateUnicodeData)
set(UNICODE_DATA_HEADER UnicodeData.h)
set(UNICODE_DATA_IMPLEMENTATION UnicodeData.cpp)
add_custom_command(
OUTPUT ${UNICODE_DATA_HEADER}
COMMAND ${write_if_different} ${UNICODE_DATA_HEADER} ${UNICODE_GENERATOR} -h -u ${UNICODE_DATA_PATH}
VERBATIM
DEPENDS GenerateUnicodeData
MAIN_DEPENDENCY ${UNICODE_DATA_PATH}
)
add_custom_command(
OUTPUT ${UNICODE_DATA_IMPLEMENTATION}
COMMAND ${write_if_different} ${UNICODE_DATA_IMPLEMENTATION} ${UNICODE_GENERATOR} -c -u ${UNICODE_DATA_PATH}
VERBATIM
DEPENDS GenerateUnicodeData
MAIN_DEPENDENCY ${UNICODE_DATA_PATH}
)
set(UNICODE_DATA_SOURCES ${UNICODE_DATA_HEADER} ${UNICODE_DATA_IMPLEMENTATION})
add_compile_definitions(ENABLE_UNICODE_DATA=1)
else()
add_compile_definitions(ENABLE_UNICODE_DATA=0)
endif()