Does the transpiler support IFC schemas?

[ckabanur]

I tried to use esprc transpiler for IFC schema (ver 2x3) https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/FINAL/EXPRESS/IFC2X3_Final.exp as input, using the below terminal command:

./target/release/esprc ./schemas/ifc/IFC2x3.exp | rustfmt > ./ruststep/src/ifc2x3.rs

It results in following error:

`Syntax Error occurred while parsing following line [Nom(Tag)]:

FUNCTION IfcCorrectObjectAssignment (Constraint: IfcObjectTypeEnum; Objects : SET[1:?] OF IfcObjectDefinition) : LOGICAL;

LOCAL Count : INTEGER := 0; END_LOCAL;

  IF NOT(EXISTS(Constraint)) THEN 
    RETURN(TRUE);

Syntax Error occurred while parsing following line [Nom(Many1)]:

SCHEMA IFC2X3;

TYPE IfcAbsorbedDoseMeasure = REAL; END_TYPE;

TYPE IfcAccelerationMeasure = REAL; END_TYPE;

TYPE IfcAmountOfSubstanceMeasure = REAL; END_TYPE;

thread 'main' panicked at 'Syntax Error', espr/src/bin/esprc.rs:35:13`

If I increase the number of error lines in the command (like 10000), I see that it basically dumps the entire content of the schema file as syntax error ([Nom(Tag)] and [Nom(Many1)].

The code is too complex for me to debug and understand. Please advise. Does esprc support IFC schemas? Is it planned for later releases?

[termoshtt]

Currently (0.1.0 release), esprc can only understand a limited grammar of EXPRESS, and tested only for AP201 schema. We are still working to support entire EXPRESS language until 1.0 release.

thread 'main' panicked at 'Syntax Error', espr/src/bin/esprc.rs:35:13`

"Syntax Error" means esprc fails to tokenize input. A better way I usually do for debugging espr is to create a minimal input to cause syntax error.

[ckabanur]

Thanks for the clarification and guidance!