Is there a reason why the ABNF for example the when and must statement has
been "restricted" to when-keyword sep string optsep 

As "string"  can't be tokenized no errors are generated by YANG compilers if
this string contains an error, e.g. referred leaf does not exit due to a
typo.  This problem only exposes itself at run-time.  I was wondering why
this string was not broken down into a number of specific parts that define
the when statement so that these kind of errors can be trapped early in the
development process?   I am rather new in this so I did not follow all
discussions that led to the definition of YANG and hence have no idea
whether this was discussed and what were the reasons not to do it this way.

 

Best regards - Vriendelijke groeten,

Bart Bogaert

 

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