Regex sed语法，错误不匹配（或\(

试图用另一个cmake文件中的#using sed注释掉cmake文件中的“cmake_policy（SET CMP0022）”。尝试了转义（和空格，但我不知怎么做都不对。正确的语法是什么

set(PATCH_CMP0022 "s/cmake_policy\\(SET\\ CMP0022/#cmake_policy(SET\\ CMP0022/")
sed ${PATCH_CMP0022} ${PATCH_FILE} -i

如果重要的话，这是我的整个cmake代码块

if(NOT EXISTS ${NAME}-patch)
    message("--- Patching ${NAME} ---")
    set(PATCH_CMP0022 "s/cmake_policy\\(SET\\ CMP0022/#cmake_policy(SET\\ CMP0022/")
    message(${PATCH_CMP0022})
    set(PATCH_SOURCE_DIR "s/CMAKE_SOURCE_DIR/CMAKE_CURRENT_SOURCE_DIR/")
    set(PATCH_FILE "${NAME}-src/CMakeLists.txt")
    execute_process(
        COMMAND sed ${PATCH_CMP0022} ${PATCH_FILE} -i
        COMMAND sed ${PATCH_SOURCE_DIR} ${PATCH_FILE} -i
        COMMAND touch ${NAME}-patch
        WORKING_DIRECTORY ${PATH_LIB})
endif()

---

如果您的数据在'd'文件中，请尝试gnu sed最多3（）对检查

 sed -E 's/.*\([^\)]+[^\)]*$|.*(\(.*){2}\)[^\)]*$|.*(\(.*){3}\)\)[^\)]*$/#&/' 

---

没有

-r

选项。因此，您不需要在sed命令中转义任何内容：

set（PATCH_CMP0022“s/cmake_policy（set CMP0022/#cmake_policy（set CMP0022/”）

。另外，最好将对该变量的引用括在双引号中-

“${PATCH_CMP0022}”

，这样cmake就不会特别处理分号了（对于将使用分号的情况）。