Crate openbim_step 

Generic ISO 10303 STEP Part 21 and EXPRESS syntax infrastructure.

The crate has no domain-schema dependency. It tokenizes bytes with spans, decodes physical-file strings, parses records into generic parameters, writes them back, partitions complete records, and offers a structural, explicitly partial EXPRESS declaration extractor.

Re-exports

pub use recovery::Diagnostic;

pub use recovery::OnMalformed;

pub use recovery::ParseOptions;

pub use recovery::ParseOutcome;

pub use recovery::Severity;

pub use writer::write;

pub use writer::write_parameter;

pub use writer::write_to_string;

Modules

escape

STEP string escape codec. STEP string-literal escape decoding and encoding.

express

Structural, explicitly partial EXPRESS declaration extraction. Explicitly structural, partial EXPRESS declaration extraction.

lexer

Physical-file tokenizer. Byte-level tokenizer for STEP physical files.

recovery

Malformed-record recovery policy and non-fatal diagnostics. Opt-in malformed-record recovery policy and non-fatal diagnostics.

writer

Semantic exchange writer. Semantic exchange writer.

Structs

DataRecord

A simple or complex #id=...; instance in DATA;.

DataSection

The generic DATA; ... ENDSEC; section.

Exchange

A complete ISO 10303-21 exchange structure.

HeaderRecord

A record in HEADER;.

HeaderSection

The generic HEADER; ... ENDSEC; section.

InstanceId

An arbitrary-precision instance identifier as written by #42.

Partition

A half-open byte range containing one or more complete data records.

Record

One named parameter record within a DATA instance.

Source

Source text used to resolve byte spans to human-readable locations.

SourceLocation

A source span resolved to a display location.

Span

A half-open byte range in the original source.

Spanned

A value paired with its source span.

StandardHeader

Standard header fields projected from raw header records.

StepError

Failure while tokenizing or semantically parsing a physical file.

Enums

Event

A semantic parser event.

Parameter

One generic parameter value.

Constants

MAX_PARAMETER_NESTING

Maximum nesting accepted for lists and typed parameters.

Traits

EventSink

Consumer for parse events.

Functions

data_record_spans

Locates complete data records.

is_step_file

Returns whether bytes begin with the ISO 10303-21 marker.

parse

Parses a physical file into an owned generic exchange structure.

parse_events

Parses a physical file and sends semantic records to sink.

parse_events_with

Streams semantic records under explicit ParseOptions, returning the non-fatal diagnostics collected on the way.

parse_with

Parses a physical file under explicit ParseOptions.

partition_data_records

Splits data records into at most partition_count balanced groups.