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| yaml-test-suite@daa74b930d | ||
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| libyaml_dropin.gpr | ||
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Readme.md
AdaYaml - YAML 1.3 implementation in Ada
This is an implementation of the upcoming YAML 1.3 standard. This library is currently under construction. Be wary of errors, I have not even proven it correct.
Status
Current YAML test suite status:
Total Tests Run: 204
Successful Tests: 197
Failed Assertions: 6
Unexpected Errors: 2
YAML 1.3 Features
Status of YAML 1.3 features, taken from this list:
| Number | Desciption | Status |
|---|---|---|
| RFC-001 | Remove the 1024 character limit | Implemented |
| RFC-002 | Limit content allowed after the '---' header | Implemented |
| RFC-003 | Characters that can appear in anchor | Implemented |
| RFC-004 | Block sequence entries must use space after dash | Implemented |
| RFC-005 | Restrict default implicit types to JSON semantics | Not applicable |
| RFC-006 | Disallow carriage return as a break | Implemented |
| RFC-007 | Disallow flow collections as implicit keys | Implemented |
| RFC-008 | Annotations | Can be parsed |
| RFC-009 | Allow unresolvable aliases | Implemented |
| RFC-010 | Fixed position of properties and block scalars | Implemented |
| RFC-011 | Indentation of block scalars | Implemented |
| RFC-012 | Remove wiki-like syntax from folded block scalars | Implemented |
| RFC-013 | retracted | Not implemented |
| RFC-014 | Anchors always come before tags (when both) | Not implemented |
General Roadmap
- Have a basic working lexer
- Have a basic working parser
- Have a basic working representer
- Test against the YAML test suite
- Implement fancy error reporting (starting line of error with marker)
- Do some benchmarks
- Web demo
- Implement UTF-16 and UTF-32 encodings
- Make AdaYaml a drop-in replacement for libyaml (provide the C interface)
- As proof-of-concept, implement the Transformations extension
- Maybe provide a DOM API
Hacking
After cloning, to fetch the yaml test suite, do:
git submodule init
git submodule update
For updating the test suite, always use
git submodule update --remote
These commands may be useful for toying around:
make adayaml
This builds the library. Not really useful right now.
make test
This builds the unit tests. The executables will be located in the
test/bin directory (be sure that the root folder is the working directory when
executing).
make utils
This builds a small utility that reads a YAML files and outputs a stream of
events to the command line. It is located in util/bin afterwards. The tool
reads either the file specified as first command line parameter, or, in absense
of that parameter, from stdin.
To edit the code, you can use GNAT Programming Studio to open the *.gpr files.