mirror of
https://github.com/reactos/CMake.git
synced 2024-12-08 03:49:04 +00:00
292 lines
10 KiB
CMake
292 lines
10 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
|
# file Copyright.txt or https://cmake.org/licensing for details.
|
|
|
|
#[=======================================================================[.rst:
|
|
FindBISON
|
|
---------
|
|
|
|
Find ``bison`` executable and provide a macro to generate custom build rules.
|
|
|
|
The module defines the following variables:
|
|
|
|
``BISON_EXECUTABLE``
|
|
path to the ``bison`` program
|
|
|
|
``BISON_VERSION``
|
|
version of ``bison``
|
|
|
|
``BISON_FOUND``
|
|
true if the program was found
|
|
|
|
The minimum required version of ``bison`` can be specified using the
|
|
standard CMake syntax, e.g. ``find_package(BISON 2.1.3)``.
|
|
|
|
If ``bison`` is found, the module defines the macro::
|
|
|
|
BISON_TARGET(<Name> <YaccInput> <CodeOutput>
|
|
[COMPILE_FLAGS <flags>]
|
|
[DEFINES_FILE <file>]
|
|
[VERBOSE [<file>]]
|
|
[REPORT_FILE <file>]
|
|
)
|
|
|
|
which will create a custom rule to generate a parser. ``<YaccInput>`` is
|
|
the path to a yacc file. ``<CodeOutput>`` is the name of the source file
|
|
generated by bison. A header file is also be generated, and contains
|
|
the token list.
|
|
|
|
The options are:
|
|
|
|
``COMPILE_FLAGS <flags>``
|
|
Specify flags to be added to the ``bison`` command line.
|
|
|
|
``DEFINES_FILE <file>``
|
|
Specify a non-default header ``<file>`` to be generated by ``bison``.
|
|
|
|
``VERBOSE [<file>]``
|
|
Tell ``bison`` to write a report file of the grammar and parser.
|
|
If ``<file>`` is given, it specifies path the report file is copied to.
|
|
``[<file>]`` is left for backward compatibility of this module.
|
|
Use ``VERBOSE REPORT_FILE <file>``.
|
|
|
|
``REPORT_FILE <file>``
|
|
Specify a non-default report ``<file>``, if generated.
|
|
|
|
The macro defines the following variables:
|
|
|
|
``BISON_<Name>_DEFINED``
|
|
true is the macro ran successfully
|
|
|
|
``BISON_<Name>_INPUT``
|
|
The input source file, an alias for <YaccInput>
|
|
|
|
``BISON_<Name>_OUTPUT_SOURCE``
|
|
The source file generated by bison
|
|
|
|
``BISON_<Name>_OUTPUT_HEADER``
|
|
The header file generated by bison
|
|
|
|
``BISON_<Name>_OUTPUTS``
|
|
All files generated by bison including the source, the header and the report
|
|
|
|
``BISON_<Name>_COMPILE_FLAGS``
|
|
Options used in the ``bison`` command line
|
|
|
|
Example usage:
|
|
|
|
.. code-block:: cmake
|
|
|
|
find_package(BISON)
|
|
BISON_TARGET(MyParser parser.y ${CMAKE_CURRENT_BINARY_DIR}/parser.cpp
|
|
DEFINES_FILE ${CMAKE_CURRENT_BINARY_DIR}/parser.h)
|
|
add_executable(Foo main.cpp ${BISON_MyParser_OUTPUTS})
|
|
#]=======================================================================]
|
|
|
|
find_program(BISON_EXECUTABLE NAMES bison win_bison DOC "path to the bison executable")
|
|
mark_as_advanced(BISON_EXECUTABLE)
|
|
|
|
if(BISON_EXECUTABLE)
|
|
# the bison commands should be executed with the C locale, otherwise
|
|
# the message (which are parsed) may be translated
|
|
set(_Bison_SAVED_LC_ALL "$ENV{LC_ALL}")
|
|
set(ENV{LC_ALL} C)
|
|
|
|
execute_process(COMMAND ${BISON_EXECUTABLE} --version
|
|
OUTPUT_VARIABLE BISON_version_output
|
|
ERROR_VARIABLE BISON_version_error
|
|
RESULT_VARIABLE BISON_version_result
|
|
OUTPUT_STRIP_TRAILING_WHITESPACE)
|
|
|
|
set(ENV{LC_ALL} ${_Bison_SAVED_LC_ALL})
|
|
|
|
if(NOT ${BISON_version_result} EQUAL 0)
|
|
message(SEND_ERROR "Command \"${BISON_EXECUTABLE} --version\" failed with output:\n${BISON_version_error}")
|
|
else()
|
|
# Bison++
|
|
if("${BISON_version_output}" MATCHES "^bison\\+\\+ Version ([^,]+)")
|
|
set(BISON_VERSION "${CMAKE_MATCH_1}")
|
|
# GNU Bison
|
|
elseif("${BISON_version_output}" MATCHES "^bison \\(GNU Bison\\) ([^\n]+)\n")
|
|
set(BISON_VERSION "${CMAKE_MATCH_1}")
|
|
elseif("${BISON_version_output}" MATCHES "^GNU Bison (version )?([^\n]+)")
|
|
set(BISON_VERSION "${CMAKE_MATCH_2}")
|
|
endif()
|
|
endif()
|
|
|
|
# internal macro
|
|
# sets BISON_TARGET_cmdopt
|
|
macro(BISON_TARGET_option_extraopts Options)
|
|
set(BISON_TARGET_cmdopt "")
|
|
set(BISON_TARGET_extraopts "${Options}")
|
|
separate_arguments(BISON_TARGET_extraopts)
|
|
list(APPEND BISON_TARGET_cmdopt ${BISON_TARGET_extraopts})
|
|
endmacro()
|
|
|
|
# internal macro
|
|
# sets BISON_TARGET_output_header and BISON_TARGET_cmdopt
|
|
macro(BISON_TARGET_option_defines BisonOutput Header)
|
|
if("${Header}" STREQUAL "")
|
|
# default header path generated by bison (see option -d)
|
|
string(REGEX REPLACE "^(.*)(\\.[^.]*)$" "\\2" _fileext "${BisonOutput}")
|
|
string(REPLACE "c" "h" _fileext ${_fileext})
|
|
string(REGEX REPLACE "^(.*)(\\.[^.]*)$" "\\1${_fileext}"
|
|
BISON_TARGET_output_header "${BisonOutput}")
|
|
list(APPEND BISON_TARGET_cmdopt "-d")
|
|
else()
|
|
set(BISON_TARGET_output_header "${Header}")
|
|
list(APPEND BISON_TARGET_cmdopt "--defines=${BISON_TARGET_output_header}")
|
|
endif()
|
|
endmacro()
|
|
|
|
# internal macro
|
|
# sets BISON_TARGET_verbose_file and BISON_TARGET_cmdopt
|
|
macro(BISON_TARGET_option_report_file BisonOutput ReportFile)
|
|
if("${ReportFile}" STREQUAL "")
|
|
get_filename_component(BISON_TARGET_output_path "${BisonOutput}" PATH)
|
|
get_filename_component(BISON_TARGET_output_name "${BisonOutput}" NAME_WE)
|
|
set(BISON_TARGET_verbose_file
|
|
"${BISON_TARGET_output_path}/${BISON_TARGET_output_name}.output")
|
|
else()
|
|
set(BISON_TARGET_verbose_file "${ReportFile}")
|
|
list(APPEND BISON_TARGET_cmdopt "--report-file=${BISON_TARGET_verbose_file}")
|
|
endif()
|
|
if(NOT IS_ABSOLUTE "${BISON_TARGET_verbose_file}")
|
|
cmake_policy(GET CMP0088 _BISON_CMP0088
|
|
PARENT_SCOPE # undocumented, do not use outside of CMake
|
|
)
|
|
if("x${_BISON_CMP0088}x" STREQUAL "xNEWx")
|
|
set(BISON_TARGET_verbose_file "${CMAKE_CURRENT_BINARY_DIR}/${BISON_TARGET_verbose_file}")
|
|
else()
|
|
set(BISON_TARGET_verbose_file "${CMAKE_CURRENT_SOURCE_DIR}/${BISON_TARGET_verbose_file}")
|
|
endif()
|
|
unset(_BISON_CMP0088)
|
|
endif()
|
|
endmacro()
|
|
|
|
# internal macro
|
|
# adds a custom command and sets
|
|
# BISON_TARGET_cmdopt, BISON_TARGET_extraoutputs
|
|
macro(BISON_TARGET_option_verbose Name BisonOutput filename)
|
|
cmake_policy(GET CMP0088 _BISON_CMP0088
|
|
PARENT_SCOPE # undocumented, do not use outside of CMake
|
|
)
|
|
set(_BISON_WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
|
|
if("x${_BISON_CMP0088}x" STREQUAL "xNEWx")
|
|
set(_BISON_WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
|
|
endif()
|
|
unset(_BISON_CMP0088)
|
|
|
|
list(APPEND BISON_TARGET_cmdopt "--verbose")
|
|
list(APPEND BISON_TARGET_outputs
|
|
"${BISON_TARGET_verbose_file}")
|
|
if (NOT "${filename}" STREQUAL "")
|
|
if(IS_ABSOLUTE "${filename}")
|
|
set(BISON_TARGET_verbose_extra_file "${filename}")
|
|
else()
|
|
set(BISON_TARGET_verbose_extra_file "${_BISON_WORKING_DIRECTORY}/${filename}")
|
|
endif()
|
|
|
|
add_custom_command(OUTPUT ${BISON_TARGET_verbose_extra_file}
|
|
COMMAND ${CMAKE_COMMAND} -E copy
|
|
"${BISON_TARGET_verbose_file}"
|
|
"${filename}"
|
|
VERBATIM
|
|
DEPENDS
|
|
"${BISON_TARGET_verbose_file}"
|
|
COMMENT "[BISON][${Name}] Copying bison verbose table to ${filename}"
|
|
WORKING_DIRECTORY ${_BISON_WORKING_DIRECTORY})
|
|
list(APPEND BISON_TARGET_extraoutputs
|
|
"${BISON_TARGET_verbose_extra_file}")
|
|
unset(BISON_TARGET_verbose_extra_file)
|
|
unset(_BISON_WORKING_DIRECTORY)
|
|
endif()
|
|
endmacro()
|
|
|
|
#============================================================
|
|
# BISON_TARGET (public macro)
|
|
#============================================================
|
|
#
|
|
macro(BISON_TARGET Name BisonInput BisonOutput)
|
|
set(BISON_TARGET_outputs "${BisonOutput}")
|
|
set(BISON_TARGET_extraoutputs "")
|
|
|
|
# Parsing parameters
|
|
set(BISON_TARGET_PARAM_OPTIONS
|
|
)
|
|
set(BISON_TARGET_PARAM_ONE_VALUE_KEYWORDS
|
|
COMPILE_FLAGS
|
|
DEFINES_FILE
|
|
REPORT_FILE
|
|
)
|
|
set(BISON_TARGET_PARAM_MULTI_VALUE_KEYWORDS
|
|
VERBOSE
|
|
)
|
|
cmake_parse_arguments(
|
|
BISON_TARGET_ARG
|
|
"${BISON_TARGET_PARAM_OPTIONS}"
|
|
"${BISON_TARGET_PARAM_ONE_VALUE_KEYWORDS}"
|
|
"${BISON_TARGET_PARAM_MULTI_VALUE_KEYWORDS}"
|
|
${ARGN}
|
|
)
|
|
|
|
if(NOT "${BISON_TARGET_ARG_UNPARSED_ARGUMENTS}" STREQUAL "")
|
|
message(SEND_ERROR "Usage")
|
|
elseif("${BISON_TARGET_ARG_VERBOSE}" MATCHES ";")
|
|
# [VERBOSE [<file>] hack: <file> is non-multi value by usage
|
|
message(SEND_ERROR "Usage")
|
|
else()
|
|
|
|
BISON_TARGET_option_extraopts("${BISON_TARGET_ARG_COMPILE_FLAGS}")
|
|
BISON_TARGET_option_defines("${BisonOutput}" "${BISON_TARGET_ARG_DEFINES_FILE}")
|
|
BISON_TARGET_option_report_file("${BisonOutput}" "${BISON_TARGET_ARG_REPORT_FILE}")
|
|
if(NOT "${BISON_TARGET_ARG_VERBOSE}" STREQUAL "")
|
|
BISON_TARGET_option_verbose(${Name} ${BisonOutput} "${BISON_TARGET_ARG_VERBOSE}")
|
|
else()
|
|
# [VERBOSE [<file>]] is used with no argument or is not used
|
|
set(BISON_TARGET_args "${ARGN}")
|
|
list(FIND BISON_TARGET_args "VERBOSE" BISON_TARGET_args_indexof_verbose)
|
|
if(${BISON_TARGET_args_indexof_verbose} GREATER -1)
|
|
# VERBOSE is used without <file>
|
|
BISON_TARGET_option_verbose(${Name} ${BisonOutput} "")
|
|
endif()
|
|
endif()
|
|
|
|
list(APPEND BISON_TARGET_outputs "${BISON_TARGET_output_header}")
|
|
|
|
cmake_policy(GET CMP0088 _BISON_CMP0088
|
|
PARENT_SCOPE # undocumented, do not use outside of CMake
|
|
)
|
|
set(_BISON_WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
|
|
if("x${_BISON_CMP0088}x" STREQUAL "xNEWx")
|
|
set(_BISON_WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
|
|
endif()
|
|
unset(_BISON_CMP0088)
|
|
|
|
add_custom_command(OUTPUT ${BISON_TARGET_outputs}
|
|
COMMAND ${BISON_EXECUTABLE} ${BISON_TARGET_cmdopt} -o ${BisonOutput} ${BisonInput}
|
|
VERBATIM
|
|
DEPENDS ${BisonInput}
|
|
COMMENT "[BISON][${Name}] Building parser with bison ${BISON_VERSION}"
|
|
WORKING_DIRECTORY ${_BISON_WORKING_DIRECTORY})
|
|
|
|
unset(_BISON_WORKING_DIRECTORY)
|
|
|
|
# define target variables
|
|
set(BISON_${Name}_DEFINED TRUE)
|
|
set(BISON_${Name}_INPUT ${BisonInput})
|
|
set(BISON_${Name}_OUTPUTS ${BISON_TARGET_outputs} ${BISON_TARGET_extraoutputs})
|
|
set(BISON_${Name}_COMPILE_FLAGS ${BISON_TARGET_cmdopt})
|
|
set(BISON_${Name}_OUTPUT_SOURCE "${BisonOutput}")
|
|
set(BISON_${Name}_OUTPUT_HEADER "${BISON_TARGET_output_header}")
|
|
|
|
endif()
|
|
endmacro()
|
|
#
|
|
#============================================================
|
|
|
|
endif()
|
|
|
|
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
|
|
FIND_PACKAGE_HANDLE_STANDARD_ARGS(BISON REQUIRED_VARS BISON_EXECUTABLE
|
|
VERSION_VAR BISON_VERSION)
|