mirror of https://github.com/ArduPilot/ardupilot
104 lines
3.3 KiB
CMake
104 lines
3.3 KiB
CMake
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# 1. Concatenate all PDE files
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# 2. Write #include "WProgram.h"
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# 3. Write prototypes
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# 4. Write original sources
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#
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#
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# Prefix Writer
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# 1. Scrub comments
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# 2. Optionally subsitute Unicode
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# 3. Find imports
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# 4. Find prototypes
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#
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# Find prototypes
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# 1. Strip comments, quotes, preprocessor directives
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# 2. Collapse braches
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# 3. Regex
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set(SINGLE_QUOTES_REGEX "('.')")
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set(DOUBLE_QUOTES_REGEX "(\"([^\"\\\\]|\\\\.)*\")")
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set(SINGLE_COMMENT_REGEX "([ ]*//[^\n]*)")
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set(MULTI_COMMENT_REGEX "(/[*][^/]*[*]/)")
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set(PREPROC_REGEX "([ ]*#(\\\\[\n]|[^\n])*)")
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#"[\w\[\]\*]+\s+[&\[\]\*\w\s]+\([&,\[\]\*\w\s]*\)(?=\s*\{)"
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set(PROTOTPYE_REGEX "([a-zA-Z0-9]+[ ]*)*[a-zA-Z0-9]+[ ]*\([^{]*\)[ ]*{")
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function(READ_SKETCHES VAR_NAME )
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set(SKETCH_SOURCE)
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foreach(SKETCH ${ARGN})
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if(EXISTS ${SKETCH})
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message(STATUS "${SKETCH}")
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file(READ ${SKETCH} SKETCH_CONTENTS)
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set(SKETCH_SOURCE "${SKETCH_SOURCE}\n${SKETCH_CONTENTS}")
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else()
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message(FATAL_ERROR "Sketch file does not exist: ${SKETCH}")
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endif()
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endforeach()
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set(${VAR_NAME} "${SKETCH_SOURCE}" PARENT_SCOPE)
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endfunction()
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function(STRIP_SOURCES VAR_NAME SOURCES)
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string(REGEX REPLACE "${SINGLE_QUOTES_REGEX}|${DOUBLE_QUOTES_REGEX}|${SINGLE_COMMENT_REGEX}|${MULTI_COMMENT_REGEX}|${PREPROC_REGEX}"
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""
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SOURCES
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"${SOURCES}")
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set(${VAR_NAME} "${SOURCES}" PARENT_SCOPE)
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endfunction()
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function(COLLAPSE_BRACES VAR_NAME SOURCES)
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set(PARSED_SOURCES)
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string(LENGTH "${SOURCES}" SOURCES_LENGTH)
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math(EXPR SOURCES_LENGTH "${SOURCES_LENGTH}-1")
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set(NESTING 0)
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set(START 0)
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foreach(INDEX RANGE ${SOURCES_LENGTH})
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string(SUBSTRING "${SOURCES}" ${INDEX} 1 CURRENT_CHAR)
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#message("${CURRENT_CHAR}")
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if(CURRENT_CHAR STREQUAL "{")
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if(NESTING EQUAL 0)
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math(EXPR SUBLENGTH "${INDEX}-${START} +1")
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string(SUBSTRING "${SOURCES}" ${START} ${SUBLENGTH} CURRENT_CHUNK)
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set(PARSED_SOURCES "${PARSED_SOURCES}${CURRENT_CHUNK}")
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#message("INDEX: ${INDEX} START: ${START} LENGTH: ${SUBLENGTH}")
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endif()
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math(EXPR NESTING "${NESTING}+1")
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elseif(CURRENT_CHAR STREQUAL "}")
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math(EXPR NESTING "${NESTING}-1")
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if(NESTING EQUAL 0)
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set(START ${INDEX})
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endif()
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endif()
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endforeach()
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math(EXPR SUBLENGTH "${SOURCES_LENGTH}-${START} +1")
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string(SUBSTRING "${SOURCES}" ${START} ${SUBLENGTH} CURRENT_CHUNK)
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set(PARSED_SOURCES "${PARSED_SOURCES}${CURRENT_CHUNK}")
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set(${VAR_NAME} "${PARSED_SOURCES}" PARENT_SCOPE)
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endfunction()
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function(extract_prototypes VAR_NAME SOURCES)
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string(REGEX MATCHALL "${PROTOTPYE_REGEX}"
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SOURCES
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"${SOURCES}")
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set(${VAR_NAME} "${SOURCES}" PARENT_SCOPE)
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endfunction()
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read_sketches(SKETCH_SOURCE ${FILES})
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strip_sources(SKETCH_SOURCE "${SKETCH_SOURCE}")
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collapse_braces(SKETCH_SOURCE "${SKETCH_SOURCE}")
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extract_prototypes(SKETCH_SOURCE "${SKETCH_SOURCE}")
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message("===============")
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foreach(ENTRY ${SKETCH_SOURCE})
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message("START]]]${ENTRY}[[[END")
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endforeach()
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message("===============")
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#message("${SKETCH_SOURCE}")
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