nyaml2nxdl: bug fixes

[RubelMozumder]

nyaml2nxdl bug

Priority:

• [ ] Fix it (serious issue)
• [ ] Useful (important)
• [ ] Non functional (less important)

Doc String:

• [ ] Single line not always kept as single line. !!! Non functional
• [ ] \"\" is converted to &qout !!! Non functional
• [x] Indentation variation is not kept !!! Non functionl
• [ ] Using : in docstring files for PyYAML sometimes. Temporary fix is using ':' but it should be enabled from PyYAML side. It should be checked if this is an actual PyYAML bug and if so an issue should be filed.

Header

• [x] does not contain encoding !!! Fix it
• [x] copy-right comments missing !!! Fix it
• [ ] Comments comments are missing. !!! Useful

Term(group field attribute) indentaion:

• [ ] NAIC is not consistent but generally 2 spaces !!! Non functionl

/> closing:

• [ ] NAIC is not consistent e.g. NXarchive.nxdl !!! Non function

XML tags:

• [x] optional is missing(e.g. in appdef): !!! Fix it
• [x] NIAC is not consistent in the order but in general: Name, Type, Units, Optionality, occurs, other !!! Fix it.
• [x] Default type=NX_CHAR is written !!! Fix it
• [x] Singnal=, asix=, deprecated=,nNameType= are missing !!!Fix it
• [x] minoccurs=0 is missing in base classes !!!Non functional
• [x] type= in attributes are missing from yaml !!! Fix it

assertion bugs: (not producing yaml file form nxdl)

• [x] Catagory missing: NXcollection, NXgeometry !!!Fix it
• [x] Value under dimension is missing, e.g. NX monitor !!!Fix it
• [x] Unhandled root level extra parameter e.g. NXtransformation, NXdata !!! Fix it

[RubelMozumder]

minoccurs=0 is missing in base classes !!!Non functional, minoccurs=0 has been skiped as it means optional.