posit-dev / posit-dev/ggsql

Syntax for highlight-type aesthetic override

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syntax
Dominant language
Rust
Stars
554
Forks
30
Avg merge
17h 27m
Merged PRs (30d)
8

Description

I begin to suspect we need a dedicated syntax (sub-clause to DRAW) that encompasses the idea of overwriting the literal value of an aesthetic based on a condition. I think it needs to live separately because it needs to work both for mapped and set values and after scaling has been applied. While it is nice in itself for static plots (i.e. easy lowering of opacity on a group of background observations) I think it will be integral to a future dynamic grammar in order to describe rich hover and select behavior

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Research direction

The issue names the DRAW syntax and the concepts of mapped and set aesthetic values after scaling, but no files or tests. Start by locating the DRAW grammar and existing aesthetic handling, then determine the syntax and behavior needed for conditional literal overrides; done should include agreed semantics for both mapped and set values.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust, sql
Domain
compilers
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Active
Clarity
Needs clarification
Newbie friendliness
25/100

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