Fortran 2003 and conditionals

[cmbant]

"optional", "allocatable", "class", "Type, extends", and other elements of Fortran 2003 code are not highlighted consistently. Also #ifdef, #endif are not highlighted clearly differently.
e.g. see

https://github.com/cmbant/forutils/blob/master/ObjectLists.f90
https://github.com/cmbant/forutils/blob/master/MpiUtils.f90

[cmbant]

PS. I notice in previous bug reports you ask for a reference for the language structure. Here's the exhaustive specification of the language:

http://www.j3-fortran.org/doc/year/10/10-007.pdf

[infininight]

I believe the optional and allocatable cases have been corrected, if there are any I missed give line numbers.

Class and extends are not constructs currently supported by the grammar, so they are not intended to be matched at all currently. (Neither is Type, abstract which I note from your example files.)

Same with the conditional lines, though I do not see those mentioned at all in the document linked.

[cmbant]

The MpiUtils.f90 file has #ifdef MPI etc, which are currently highlighted the same way a fortran code.

[infininight]

Yes I see them there I meant I don't see them mentioned in the spec document you linked.

[cmbant]

Ah, Fortran just uses the standard C preprocessor directives.

[wusunlab]

To add to this, pure and elemental procedures are also not highlighted consistently. If you have some thing like pure function ... it will highlight; but if you have pure real(8) function ... it won't highlight it properly.