espr::parse fails for input ENTITY\n

[termoshtt]

No description provided.

[g-rauhoeft]

I'm going to look in to this.

Edit: I believe I've fixed it for ENTITY, but it now gets stuck on TYPE. One step further I guess.

[g-rauhoeft]

I've made progress in fixing TYPE parsing. For me the line expression_is_constant(SELF); failed to parse. The reason for this is because the function_call parser first recognized the built-in express exp function and then tried to parse the remainder, which was ression_is_constant(SELF);, resulting in a syntax error. Fixing this requires the use of the work that I submitted earlier regarding reserved keywords. I'll create a new pull request within the next couple of days containing a fix for this.

[g-rauhoeft]

The work I've put in to this is located in https://github.com/g-rauhoeft/ruststep/tree/entity_fix_55.
Entities are parsed fine as far as I can see, but it fails on certain functions. It must be due to more order of operation problems, which I'll sort out. Should I make a pull request for this anyway, or would you like to wait until I've fixed the remaining issues?

Quite a few APs parse fine for me now, including AP203-short.

[termoshtt]

Fixed in #66