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