163 lines
7.2 KiB
CMake
163 lines
7.2 KiB
CMake
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# - Find bison executable and provides macros to generate custom build rules
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# The module defined the following variables:
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# BISON_EXECUTABLE - path to the bison program
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# BISON_VERSION - version of bison
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# BISON_FOUND - true if the program was found
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# If bison is found, the module defines the macros:
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# BISON_TARGET(<Name> <YaccInput> <CodeOutput> [VERBOSE <file>]
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# [COMPILE_FLAGS <string>])
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# which will create a custom rule to generate a parser. <YaccInput> is
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# the path to a yacc file. <CodeOutput> is the name of the source file
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# generated by bison. A header file is also be generated, and contains
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# the token list. If COMPILE_FLAGS option is specified, the next
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# parameter is added in the bison command line. if VERBOSE option is
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# specified, <file> is created and contains verbose descriptions of the
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# grammar and parser. The macro defines a set of variables:
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# BISON_${Name}_DEFINED - true is the macro ran successfully
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# BISON_${Name}_INPUT - The input source file, an alias for <YaccInput>
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# BISON_${Name}_OUTPUT_SOURCE - The source file generated by bison
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# BISON_${Name}_OUTPUT_HEADER - The header file generated by bison
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# BISON_${Name}_OUTPUTS - The sources files generated by bison
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# BISON_${Name}_COMPILE_FLAGS - Options used in the bison command line
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#
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# Example:
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# FIND_PACKAGE(BISON)
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# BISON_TARGET(MyParser parser.y ${PROJECT_BINARY_DIR}/parser.cpp)
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# ADD_EXECUTABLE(Foo main.cpp ${BISON_MyParser_OUTPUTS})
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#
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# Copyright (c) 2006, Tristan Carel
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# All rights reserved.
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of the University of California, Berkeley nor the
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# names of its contributors may be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
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# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
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# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# $Id: FindBISON.cmake 1218 2007-03-22 22:10:45Z jmh $
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SET(BISON_FOUND FALSE)
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FIND_PROGRAM(BISON_EXECUTABLE bison DOC "path to the bison executable")
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MARK_AS_ADVANCED(BISON_EXECUTABLE)
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IF(BISON_EXECUTABLE)
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SET(BISON_FOUND TRUE)
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EXECUTE_PROCESS(COMMAND ${BISON_EXECUTABLE} --version
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OUTPUT_VARIABLE BISON_version_output
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ERROR_VARIABLE BISON_version_error
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RESULT_VARIABLE BISON_version_result
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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IF(NOT ${BISON_version_result} EQUAL 0)
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MESSAGE(SEND_ERROR "Command \"${BISON_EXECUTABLE} --version\" failed with output:\n${BISON_version_error}")
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ELSE(NOT ${BISON_version_result} EQUAL 0)
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STRING(REGEX REPLACE "^bison \\(GNU Bison\\) ([^\n]+)\n.*" "\\1"
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BISON_VERSION "${BISON_version_output}")
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ENDIF(NOT ${BISON_version_result} EQUAL 0)
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# internal macro
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MACRO(BISON_TARGET_option_verbose Name BisonOutput filename)
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LIST(APPEND BISON_TARGET_cmdopt "--verbose")
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GET_FILENAME_COMPONENT(BISON_TARGET_output_path "${BisonOutput}" PATH)
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GET_FILENAME_COMPONENT(BISON_TARGET_output_name "${BisonOutput}" NAME_WE)
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ADD_CUSTOM_COMMAND(OUTPUT ${filename}
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COMMAND ${CMAKE_COMMAND} -E copy
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"${BISON_TARGET_output_path}/${BISON_TARGET_output_name}.output"
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"${filename}"
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DEPENDS
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"${BISON_TARGET_output_path}/${BISON_TARGET_output_name}.output"
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COMMENT "[BISON][${Name}] Copying bison verbose table to ${filename}"
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WORKING_DIRECTORY ${CMAKE_SOURCE_DIR})
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SET(BISON_${Name}_VERBOSE_FILE ${filename})
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LIST(APPEND BISON_TARGET_extraoutputs
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"${BISON_TARGET_output_path}/${BISON_TARGET_output_name}.output")
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ENDMACRO(BISON_TARGET_option_verbose)
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# internal macro
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MACRO(BISON_TARGET_option_extraopts Options)
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SET(BISON_TARGET_extraopts "${Options}")
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SEPARATE_ARGUMENTS(BISON_TARGET_extraopts)
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LIST(APPEND BISON_TARGET_cmdopt ${BISON_TARGET_extraopts})
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ENDMACRO(BISON_TARGET_option_extraopts)
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MACRO(BISON_TARGET Name BisonInput BisonOutput)
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SET(BISON_TARGET_output_header "")
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SET(BISON_TARGET_command_opt "")
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SET(BISON_TARGET_outputs "${BisonOutput}")
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IF(NOT ${ARGC} EQUAL 3 AND NOT ${ARGC} EQUAL 5 AND NOT ${ARGC} EQUAL 7)
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MESSAGE(SEND_ERROR "Usage")
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ELSE(NOT ${ARGC} EQUAL 3 AND NOT ${ARGC} EQUAL 5 AND NOT ${ARGC} EQUAL 7)
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# Parsing parameters
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IF(${ARGC} GREATER 5 OR ${ARGC} EQUAL 5)
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IF("${ARGV3}" STREQUAL "VERBOSE")
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BISON_TARGET_option_verbose(${Name} ${BisonOutput} "${ARGV4}")
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ENDIF("${ARGV3}" STREQUAL "VERBOSE")
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IF("${ARGV3}" STREQUAL "COMPILE_FLAGS")
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BISON_TARGET_option_extraopts("${ARGV4}")
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ENDIF("${ARGV3}" STREQUAL "COMPILE_FLAGS")
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ENDIF(${ARGC} GREATER 5 OR ${ARGC} EQUAL 5)
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IF(${ARGC} EQUAL 7)
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IF("${ARGV5}" STREQUAL "VERBOSE")
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BISON_TARGET_option_verbose(${Name} ${BisonOutput} "${ARGV6}")
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ENDIF("${ARGV5}" STREQUAL "VERBOSE")
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IF("${ARGV5}" STREQUAL "COMPILE_FLAGS")
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BISON_TARGET_option_extraopts("${ARGV6}")
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ENDIF("${ARGV5}" STREQUAL "COMPILE_FLAGS")
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ENDIF(${ARGC} EQUAL 7)
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# Header's name generated by bison (see option -d)
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LIST(APPEND BISON_TARGET_cmdopt "-d")
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STRING(REGEX REPLACE "^(.*)\\.c([^.]*)$" "\\1.h\\2"
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BISON_${Name}_OUTPUT_HEADER "${ARGV2}")
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LIST(APPEND BISON_TARGET_outputs "${BISON_${Name}_OUTPUT_HEADER}")
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ADD_CUSTOM_COMMAND(OUTPUT ${BISON_TARGET_outputs}
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${BISON_TARGET_extraoutputs}
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COMMAND ${BISON_EXECUTABLE} ${BISON_TARGET_cmdopt} -o ${ARGV2} ${ARGV1}
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DEPENDS ${ARGV1}
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COMMENT "[BISON][${Name}] Building parser with bison ${BISON_VERSION}"
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WORKING_DIRECTORY ${CMAKE_SOURCE_DIR})
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# define target variables
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SET(BISON_${Name}_DEFINED TRUE)
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SET(BISON_${Name}_INPUT ${ARGV1})
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SET(BISON_${Name}_OUTPUTS ${BISON_TARGET_outputs})
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SET(BISON_${Name}_COMPILE_FLAGS ${BISON_TARGET_cmdopt})
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SET(BISON_${Name}_OUTPUT_SOURCE "${BisonOutput}")
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ENDIF(NOT ${ARGC} EQUAL 3 AND NOT ${ARGC} EQUAL 5 AND NOT ${ARGC} EQUAL 7)
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ENDMACRO(BISON_TARGET)
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ENDIF(BISON_EXECUTABLE)
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IF(NOT BISON_FOUND)
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IF(NOT BISON_FIND_QUIETLY)
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MESSAGE(STATUS "BISON was not found.")
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ELSE(NOT BISON_FIND_QUIETLY)
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IF(BISON_FIND_REQUIRED)
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MESSAGE(FATAL_ERROR "BISON was not found.")
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ENDIF(BISON_FIND_REQUIRED)
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ENDIF(NOT BISON_FIND_QUIETLY)
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ENDIF(NOT BISON_FOUND)
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# FindBISON.cmake ends here
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