posit-dev / posit-dev/air

Add leading zero when it is missing for decimals

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#105 0 comments 1 reaction 0 assignees View on GitHub

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Dominant language
Rust
Stars
446
Forks
32
Avg merge
16h 48m
Merged PRs (30d)
1

Description

It would be great if air could add a leading 0 for decimals when it is missing, so that this

.3 + .5

becomes this

0.3 + 0.5

Ruff (the formatter component, not the linter one) already does that and there's a PR in rustfmt to implement this (as an option) as well.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by tracing the formatter entry point that handles decimal expressions; no file or test is named in the issue. Compare the requested .3 + .5 output with Ruff's behavior and the rustfmt option mentioned, then add coverage showing that missing leading zeros become 0.3 and 0.5.

Written by the indexing model from the issue text.

Assessment

Tech stack
r, rust
Domain
tooling
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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