diff options
Diffstat (limited to 'PreprocessorUtils.cmake')
| -rw-r--r-- | PreprocessorUtils.cmake | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/PreprocessorUtils.cmake b/PreprocessorUtils.cmake new file mode 100644 index 000000000000..38462a98d42c --- /dev/null +++ b/PreprocessorUtils.cmake @@ -0,0 +1,60 @@ +#------------------------------------------------------------------- +# This file is part of the CMake build system for OGRE +# (Object-oriented Graphics Rendering Engine) +# For the latest info, see http://www.ogre3d.org/ +# +# The contents of this file are placed in the public domain. Feel +# free to make use of it in any way you like. +#------------------------------------------------------------------- + +macro(get_preprocessor_entry CONTENTS KEYWORD VARIABLE) + string(REGEX MATCH + "# *define +${KEYWORD} +((\"([^\n]*)\")|([^ \n]*))" + PREPROC_TEMP_VAR + ${${CONTENTS}} + ) + if (CMAKE_MATCH_3) + set(${VARIABLE} ${CMAKE_MATCH_3}) + else () + set(${VARIABLE} ${CMAKE_MATCH_4}) + endif () +endmacro() + +macro(has_preprocessor_entry CONTENTS KEYWORD VARIABLE) + string(REGEX MATCH + "\n *# *define +(${KEYWORD})" + PREPROC_TEMP_VAR + ${${CONTENTS}} + ) + if (CMAKE_MATCH_1) + set(${VARIABLE} TRUE) + else () + set(${VARIABLE} FALSE) + endif () +endmacro() + +macro(replace_preprocessor_entry VARIABLE KEYWORD NEW_VALUE) + string(REGEX REPLACE + "(// *)?# *define +${KEYWORD} +[^ \n]*" + "#define ${KEYWORD} ${NEW_VALUE}" + ${VARIABLE}_TEMP + ${${VARIABLE}} + ) + set(${VARIABLE} ${${VARIABLE}_TEMP}) +endmacro() + +macro(set_preprocessor_entry VARIABLE KEYWORD ENABLE) + if (${ENABLE}) + set(TMP_REPLACE_STR "#define ${KEYWORD}") + else () + set(TMP_REPLACE_STR "// #define ${KEYWORD}") + endif () + string(REGEX REPLACE + "(// *)?# *define +${KEYWORD} *\n" + ${TMP_REPLACE_STR} + ${VARIABLE}_TEMP + ${${VARIABLE}} + ) + set(${VARIABLE} ${${VARIABLE}_TEMP}) +endmacro() + |