markcornwell / markcornwell/pilar
Print representation of unprintable characters
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Description
Printable characters have a well understood representation, #\a #! #\F. A few non-printable characters have a clear representation as well: #\newline, #\space, #\return, #\tab. But numerous other unprintable characters are a puzzle. Many of these are commented out in the tests-1.2-req.scm files. See that file for examples. Need to figure out what strategy to adopt for the printable forms, document a rationale, and implement the changes. Seems clear that the character escape should consist of all printable characters. One option is to follow the printable ascii names of the characters. I believe there is a standard 3 letter abbreviation for each.
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the commented-out character examples in the tests-1.2-req.scm files. Determine and document a strategy for representing unprintable characters, then implement the chosen escape forms and update the tests to cover them.
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Assessment
- Domain
- compilers
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100