1.4 KiB
epic, story, title, status
| epic | story | title | status |
|---|---|---|---|
| 8 | 8.3 | Syntax Highlighting | draft |
Epic 8 — Windows App (Rust + iced)
Goal: Fast, lightweight native Windows app -- single .exe, no runtime dependencies.
Story 8.3: Syntax Highlighting
As a Windows user, I want syntax highlighting in the editor that colors numbers, operators, units, variables, comments, and errors, So that I can visually parse my calculations quickly.
Acceptance Criteria:
Given the user types total_cost = $1250 + $300 // monthly
When the text is rendered
Then total_cost is colored as a variable, = and + as operators, $1250 and $300 as numbers/currency, and // monthly as a comment
Given the user types an expression that produces an error When the text is rendered Then the erroneous portion is highlighted with an error indicator (e.g., red underline or distinct color)
Given the Windows system theme is Light mode When the editor renders Then syntax colors have sufficient contrast on a light background
Given the Windows system theme is Dark mode When the editor renders Then syntax colors have sufficient contrast on a dark background
Given the syntax highlighting is implemented When colors are applied to text spans Then the engine tokenizer provides the span boundaries and token types, and the iced text renderer applies corresponding colors