mirror of
https://github.com/reactos/CMake.git
synced 2024-11-28 22:10:32 +00:00
2622bc3f65
The matches have already been calculated and can simply be taken from CMAKE_MATCH_n variables. This avoids multiple compilations of the same or very similar regular expressions.
197 lines
7.0 KiB
CMake
197 lines
7.0 KiB
CMake
#.rst:
|
|
# FindBISON
|
|
# ---------
|
|
#
|
|
# Find bison executable and provides macros 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 macros:
|
|
#
|
|
# ::
|
|
#
|
|
# BISON_TARGET(<Name> <YaccInput> <CodeOutput> [VERBOSE <file>]
|
|
# [COMPILE_FLAGS <string>])
|
|
#
|
|
# 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. If COMPILE_FLAGS option is specified, the next
|
|
# parameter is added in the bison command line. if VERBOSE option is
|
|
# specified, <file> is created and contains verbose descriptions of the
|
|
# grammar and parser. The macro defines a set of 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_${Name}_OUTPUTS - The sources files generated by bison
|
|
# BISON_${Name}_COMPILE_FLAGS - Options used in the bison command line
|
|
#
|
|
#
|
|
#
|
|
# ::
|
|
#
|
|
# ====================================================================
|
|
# Example:
|
|
#
|
|
#
|
|
#
|
|
# ::
|
|
#
|
|
# find_package(BISON)
|
|
# BISON_TARGET(MyParser parser.y ${CMAKE_CURRENT_BINARY_DIR}/parser.cpp)
|
|
# add_executable(Foo main.cpp ${BISON_MyParser_OUTPUTS})
|
|
# ====================================================================
|
|
|
|
#=============================================================================
|
|
# Copyright 2009 Kitware, Inc.
|
|
# Copyright 2006 Tristan Carel
|
|
#
|
|
# Distributed under the OSI-approved BSD License (the "License");
|
|
# see accompanying file Copyright.txt for details.
|
|
#
|
|
# This software is distributed WITHOUT ANY WARRANTY; without even the
|
|
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
# See the License for more information.
|
|
#=============================================================================
|
|
# (To distribute this file outside of CMake, substitute the full
|
|
# License text for the above reference.)
|
|
|
|
find_program(BISON_EXECUTABLE NAMES bison win_bison DOC "path to the bison executable")
|
|
mark_as_advanced(BISON_EXECUTABLE)
|
|
|
|
if(BISON_EXECUTABLE)
|
|
# the bison commands should be executed with the C locale, otherwise
|
|
# the message (which are parsed) may be translated
|
|
set(_Bison_SAVED_LC_ALL "$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 "${CMAKE_MATCH_2}")
|
|
endif()
|
|
endif()
|
|
|
|
# internal macro
|
|
macro(BISON_TARGET_option_verbose Name BisonOutput filename)
|
|
list(APPEND BISON_TARGET_cmdopt "--verbose")
|
|
get_filename_component(BISON_TARGET_output_path "${BisonOutput}" PATH)
|
|
get_filename_component(BISON_TARGET_output_name "${BisonOutput}" NAME_WE)
|
|
add_custom_command(OUTPUT ${filename}
|
|
COMMAND ${CMAKE_COMMAND}
|
|
ARGS -E copy
|
|
"${BISON_TARGET_output_path}/${BISON_TARGET_output_name}.output"
|
|
"${filename}"
|
|
DEPENDS
|
|
"${BISON_TARGET_output_path}/${BISON_TARGET_output_name}.output"
|
|
COMMENT "[BISON][${Name}] Copying bison verbose table to ${filename}"
|
|
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR})
|
|
set(BISON_${Name}_VERBOSE_FILE ${filename})
|
|
list(APPEND BISON_TARGET_extraoutputs
|
|
"${BISON_TARGET_output_path}/${BISON_TARGET_output_name}.output")
|
|
endmacro()
|
|
|
|
# internal macro
|
|
macro(BISON_TARGET_option_extraopts Options)
|
|
set(BISON_TARGET_extraopts "${Options}")
|
|
separate_arguments(BISON_TARGET_extraopts)
|
|
list(APPEND BISON_TARGET_cmdopt ${BISON_TARGET_extraopts})
|
|
endmacro()
|
|
|
|
#============================================================
|
|
# BISON_TARGET (public macro)
|
|
#============================================================
|
|
#
|
|
macro(BISON_TARGET Name BisonInput BisonOutput)
|
|
set(BISON_TARGET_output_header "")
|
|
set(BISON_TARGET_cmdopt "")
|
|
set(BISON_TARGET_outputs "${BisonOutput}")
|
|
if(NOT ${ARGC} EQUAL 3 AND NOT ${ARGC} EQUAL 5 AND NOT ${ARGC} EQUAL 7)
|
|
message(SEND_ERROR "Usage")
|
|
else()
|
|
# Parsing parameters
|
|
if(${ARGC} GREATER 5 OR ${ARGC} EQUAL 5)
|
|
if("${ARGV3}" STREQUAL "VERBOSE")
|
|
BISON_TARGET_option_verbose(${Name} ${BisonOutput} "${ARGV4}")
|
|
endif()
|
|
if("${ARGV3}" STREQUAL "COMPILE_FLAGS")
|
|
BISON_TARGET_option_extraopts("${ARGV4}")
|
|
endif()
|
|
endif()
|
|
|
|
if(${ARGC} EQUAL 7)
|
|
if("${ARGV5}" STREQUAL "VERBOSE")
|
|
BISON_TARGET_option_verbose(${Name} ${BisonOutput} "${ARGV6}")
|
|
endif()
|
|
|
|
if("${ARGV5}" STREQUAL "COMPILE_FLAGS")
|
|
BISON_TARGET_option_extraopts("${ARGV6}")
|
|
endif()
|
|
endif()
|
|
|
|
# Header's name generated by bison (see option -d)
|
|
list(APPEND BISON_TARGET_cmdopt "-d")
|
|
string(REGEX REPLACE "^(.*)(\\.[^.]*)$" "\\2" _fileext "${ARGV2}")
|
|
string(REPLACE "c" "h" _fileext ${_fileext})
|
|
string(REGEX REPLACE "^(.*)(\\.[^.]*)$" "\\1${_fileext}"
|
|
BISON_${Name}_OUTPUT_HEADER "${ARGV2}")
|
|
list(APPEND BISON_TARGET_outputs "${BISON_${Name}_OUTPUT_HEADER}")
|
|
|
|
add_custom_command(OUTPUT ${BISON_TARGET_outputs}
|
|
${BISON_TARGET_extraoutputs}
|
|
COMMAND ${BISON_EXECUTABLE}
|
|
ARGS ${BISON_TARGET_cmdopt} -o ${ARGV2} ${ARGV1}
|
|
DEPENDS ${ARGV1}
|
|
COMMENT "[BISON][${Name}] Building parser with bison ${BISON_VERSION}"
|
|
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
|
|
|
|
# define target variables
|
|
set(BISON_${Name}_DEFINED TRUE)
|
|
set(BISON_${Name}_INPUT ${ARGV1})
|
|
set(BISON_${Name}_OUTPUTS ${BISON_TARGET_outputs})
|
|
set(BISON_${Name}_COMPILE_FLAGS ${BISON_TARGET_cmdopt})
|
|
set(BISON_${Name}_OUTPUT_SOURCE "${BisonOutput}")
|
|
|
|
endif()
|
|
endmacro()
|
|
#
|
|
#============================================================
|
|
|
|
endif()
|
|
|
|
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
|
|
FIND_PACKAGE_HANDLE_STANDARD_ARGS(BISON REQUIRED_VARS BISON_EXECUTABLE
|
|
VERSION_VAR BISON_VERSION)
|
|
|
|
# FindBISON.cmake ends here
|