| blob | 9f69598e62c18c564cc13228bd414951b3e21c2e |
1 # - Find bison executable and provides macros to generate custom build rules\r
2 # The module defines the following variables:\r
3 #\r
4 # BISON_EXECUTABLE - path to the bison program\r
5 # BISON_VERSION - version of bison\r
6 # BISON_FOUND - true if the program was found\r
7 #\r
8 # If bison is found, the module defines the macros:\r
9 # BISON_TARGET(<Name> <YaccInput> <CodeOutput> [VERBOSE <file>]\r
10 # [COMPILE_FLAGS <string>])\r
11 # which will create a custom rule to generate a parser. <YaccInput> is\r
12 # the path to a yacc file. <CodeOutput> is the name of the source file\r
13 # generated by bison. A header file is also be generated, and contains\r
14 # the token list. If COMPILE_FLAGS option is specified, the next\r
15 # parameter is added in the bison command line. if VERBOSE option is\r
16 # specified, <file> is created and contains verbose descriptions of the\r
17 # grammar and parser. The macro defines a set of variables:\r
18 # BISON_${Name}_DEFINED - true is the macro ran successfully\r
19 # BISON_${Name}_INPUT - The input source file, an alias for <YaccInput>\r
20 # BISON_${Name}_OUTPUT_SOURCE - The source file generated by bison\r
21 # BISON_${Name}_OUTPUT_HEADER - The header file generated by bison\r
22 # BISON_${Name}_OUTPUTS - The sources files generated by bison\r
23 # BISON_${Name}_COMPILE_FLAGS - Options used in the bison command line\r
24 #\r
25 #====================================================================\r
26 # Example:\r
27 #\r
28 # find_package(BISON)\r
29 # BISON_TARGET(MyParser parser.y ${CMAKE_CURRENT_BINARY_DIR}/parser.cpp)\r
30 # add_executable(Foo main.cpp ${BISON_MyParser_OUTPUTS})\r
31 #====================================================================\r
32 \r
33 # Copyright (c) 2006, Tristan Carel\r
34 # All rights reserved.\r
35 # Redistribution and use in source and binary forms, with or without\r
36 # modification, are permitted provided that the following conditions are met:\r
37 #\r
38 # * Redistributions of source code must retain the above copyright\r
39 # notice, this list of conditions and the following disclaimer.\r
40 # * Redistributions in binary form must reproduce the above copyright\r
41 # notice, this list of conditions and the following disclaimer in the\r
42 # documentation and/or other materials provided with the distribution.\r
43 # * Neither the name of the University of California, Berkeley nor the\r
44 # names of its contributors may be used to endorse or promote products\r
45 # derived from this software without specific prior written permission.\r
46 #\r
47 # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY\r
48 # EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\r
49 # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\r
50 # DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY\r
51 # DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\r
52 # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;\r
53 # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND\r
54 # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\r
55 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS\r
56 # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r
57 \r
58 # $Id: FindBISON.cmake,v 1.1 2009-08-13 04:11:23 lowman Exp $\r
59 \r
60 FIND_PROGRAM(BISON_EXECUTABLE bison DOC "path to the bison executable")\r
61 MARK_AS_ADVANCED(BISON_EXECUTABLE)\r
62 \r
63 IF(BISON_EXECUTABLE)\r
64 \r
65 EXECUTE_PROCESS(COMMAND ${BISON_EXECUTABLE} --version\r
66 OUTPUT_VARIABLE BISON_version_output\r
67 ERROR_VARIABLE BISON_version_error\r
68 RESULT_VARIABLE BISON_version_result\r
69 OUTPUT_STRIP_TRAILING_WHITESPACE)\r
70 IF(NOT ${BISON_version_result} EQUAL 0)\r
71 MESSAGE(SEND_ERROR "Command \"${BISON_EXECUTABLE} --version\" failed with output:\n${BISON_version_error}")\r
72 ELSE()\r
73 STRING(REGEX REPLACE "^bison \\(GNU Bison\\) ([^\n]+)\n.*" "\\1"\r
74 BISON_VERSION "${BISON_version_output}")\r
75 ENDIF()\r
76 \r
77 # internal macro\r
78 MACRO(BISON_TARGET_option_verbose Name BisonOutput filename)\r
79 LIST(APPEND BISON_TARGET_cmdopt "--verbose")\r
80 GET_FILENAME_COMPONENT(BISON_TARGET_output_path "${BisonOutput}" PATH)\r
81 GET_FILENAME_COMPONENT(BISON_TARGET_output_name "${BisonOutput}" NAME_WE)\r
82 ADD_CUSTOM_COMMAND(OUTPUT ${filename}\r
83 COMMAND ${CMAKE_COMMAND}\r
84 ARGS -E copy\r
85 "${BISON_TARGET_output_path}/${BISON_TARGET_output_name}.output"\r
86 "${filename}"\r
87 DEPENDS\r
88 "${BISON_TARGET_output_path}/${BISON_TARGET_output_name}.output"\r
89 COMMENT "[BISON][${Name}] Copying bison verbose table to ${filename}"\r
90 WORKING_DIRECTORY ${CMAKE_SOURCE_DIR})\r
91 SET(BISON_${Name}_VERBOSE_FILE ${filename})\r
92 LIST(APPEND BISON_TARGET_extraoutputs\r
93 "${BISON_TARGET_output_path}/${BISON_TARGET_output_name}.output")\r
94 ENDMACRO(BISON_TARGET_option_verbose)\r
95 \r
96 # internal macro\r
97 MACRO(BISON_TARGET_option_extraopts Options)\r
98 SET(BISON_TARGET_extraopts "${Options}")\r
99 SEPARATE_ARGUMENTS(BISON_TARGET_extraopts)\r
100 LIST(APPEND BISON_TARGET_cmdopt ${BISON_TARGET_extraopts})\r
101 ENDMACRO(BISON_TARGET_option_extraopts)\r
102 \r
103 #============================================================\r
104 # BISON_TARGET (public macro)\r
105 #============================================================\r
106 #\r
107 MACRO(BISON_TARGET Name BisonInput BisonOutput)\r
108 SET(BISON_TARGET_output_header "")\r
109 SET(BISON_TARGET_command_opt "")\r
110 SET(BISON_TARGET_outputs "${BisonOutput}")\r
111 IF(NOT ${ARGC} EQUAL 3 AND NOT ${ARGC} EQUAL 5 AND NOT ${ARGC} EQUAL 7)\r
112 MESSAGE(SEND_ERROR "Usage")\r
113 ELSE()\r
114 # Parsing parameters\r
115 IF(${ARGC} GREATER 5 OR ${ARGC} EQUAL 5)\r
116 IF("${ARGV3}" STREQUAL "VERBOSE")\r
117 BISON_TARGET_option_verbose(${Name} ${BisonOutput} "${ARGV4}")\r
118 ENDIF()\r
119 IF("${ARGV3}" STREQUAL "COMPILE_FLAGS")\r
120 BISON_TARGET_option_extraopts("${ARGV4}")\r
121 ENDIF()\r
122 ENDIF()\r
123 \r
124 IF(${ARGC} EQUAL 7)\r
125 IF("${ARGV5}" STREQUAL "VERBOSE")\r
126 BISON_TARGET_option_verbose(${Name} ${BisonOutput} "${ARGV6}")\r
127 ENDIF()\r
128 \r
129 IF("${ARGV5}" STREQUAL "COMPILE_FLAGS")\r
130 BISON_TARGET_option_extraopts("${ARGV6}")\r
131 ENDIF()\r
132 ENDIF()\r
133 \r
134 # Header's name generated by bison (see option -d)\r
135 LIST(APPEND BISON_TARGET_cmdopt "-d")\r
136 STRING(REGEX REPLACE "^(.*)(\\.[^.]*)$" "\\2" _fileext "${ARGV2}")\r
137 STRING(REPLACE "c" "h" _fileext ${_fileext})\r
138 STRING(REGEX REPLACE "^(.*)(\\.[^.]*)$" "\\1${_fileext}" \r
139 BISON_${Name}_OUTPUT_HEADER "${ARGV2}")\r
140 LIST(APPEND BISON_TARGET_outputs "${BISON_${Name}_OUTPUT_HEADER}")\r
141 \r
142 ADD_CUSTOM_COMMAND(OUTPUT ${BISON_TARGET_outputs}\r
143 ${BISON_TARGET_extraoutputs}\r
144 COMMAND ${BISON_EXECUTABLE}\r
145 ARGS ${BISON_TARGET_cmdopt} -o ${ARGV2} ${ARGV1}\r
146 DEPENDS ${ARGV1}\r
147 COMMENT "[BISON][${Name}] Building parser with bison ${BISON_VERSION}"\r
148 WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})\r
149 \r
150 # define target variables\r
151 SET(BISON_${Name}_DEFINED TRUE)\r
152 SET(BISON_${Name}_INPUT ${ARGV1})\r
153 SET(BISON_${Name}_OUTPUTS ${BISON_TARGET_outputs})\r
154 SET(BISON_${Name}_COMPILE_FLAGS ${BISON_TARGET_cmdopt})\r
155 SET(BISON_${Name}_OUTPUT_SOURCE "${BisonOutput}")\r
156 \r
157 ENDIF(NOT ${ARGC} EQUAL 3 AND NOT ${ARGC} EQUAL 5 AND NOT ${ARGC} EQUAL 7)\r
158 ENDMACRO(BISON_TARGET)\r
159 #\r
160 #============================================================\r
161 \r
162 ENDIF(BISON_EXECUTABLE)\r
163 \r
164 INCLUDE(FindPackageHandleStandardArgs)\r
165 FIND_PACKAGE_HANDLE_STANDARD_ARGS(BISON DEFAULT_MSG BISON_EXECUTABLE)\r
166 \r
167 # FindBISON.cmake ends here\r