(added in 3.3.0b1)

• Implemented a TINY language parser/interpreter using pyparsing, in the examples/tiny directory. This is a little tutorial language that I used to demonstrate how to use pyparsing to build a simple interpreter, following a recommended parser+AST+engine+run structure. The docs sub-directory also includes transcripts of the AI session used to create the parser and the interpreter.

• Fixed minor formatting bugs in pyparsing.testing.with_line_numbers, found during development of the TINY language example.

• Added test in DelimitedList and nested_expr which auto-suppress delimiting commas to avoid wrapping in a Suppress if delimiter is already a Suppress.

• Added performance benchmarking tools and documentation:

  • tests/perf_pyparsing.py runs a series of benchmark parsing tests, exercising different aspects of the pyparsing package. For cross-version analysis, this script can export results as CSV and append to a consolidated data file.
  • Runner scripts run_perf_all_tags.bat (Windows) and run_perf_all_tags.sh (Ubuntu/bash) execute the benchmark across multiple Python versions (3.9–3.14) and pyparsing versions (3.1.1 through 3.3.0), aggregating results into perf_pyparsing.csv at the repo root.
  • See tests/README.md for usage instructions.