[csolution] Syntax problem in *.yml file not caught; generates error at CMake level

[ReinhardKeil]

The *.cproject.yml file contains

        - CMSIS_device_header: \"sam.h\

instead of

        - CMSIS_device_header: \"sam.h\"

This problem is not flagged by csolution. Instead it generates a CMake error that cannot be understood.

CMake Error at CMakeLists.txt:51:
  Parse error.  Function missing ending ")".  Instead found bad character
  with text "\".

To Reproduce

Use Test.zip project and run cbuild test.csolution.yml --context-set.

Environment (please complete the following information):

• CMSIS-Toolbox 2.7.0
• OS: Windows

[brondani]

A missing quote would be a yml syntax problem, however in this case it is valid because the quote is escaped so it is treated as any other allowed character.
Can we safely assume that every opening escaped quote must have a corresponding closing one? Should the tool throw an error or rather a warning?

[ReinhardKeil]

Can we safely assume that every opening escaped quote must have a corresponding closing one?

For define: yes