swaitsandClaude Opus 4.6
3102fc747a
Implement full SSD1306 OLED display support: - Splash screen on boot (1.5s) with project name, version, board - Dashboard showing radio state, config, counters, RSSI/SNR - RSSI history sparkline (64-sample ring buffer, 2px-wide bars) - DisplayOn/DisplayOff host commands routed via dedicated channel - Pure render functions against generic DrawTarget (no hardware coupling) - Display on/off control bypasses radio task entirely Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
69 lines
1.8 KiB
Rust
69 lines
1.8 KiB
Rust
use std::str::FromStr;
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use winnow::prelude::*;
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use winnow::Result;
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use winnow::{
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ascii::{digit1 as digits, multispace0 as multispaces},
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combinator::alt,
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combinator::delimited,
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combinator::repeat,
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token::one_of,
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};
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// Parser definition
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pub(crate) fn expr(i: &mut &str) -> Result<i64> {
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let init = term.parse_next(i)?;
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repeat(0.., (one_of(['+', '-']), term))
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.fold(
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move || init,
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|acc, (op, val): (char, i64)| {
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if op == '+' {
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acc + val
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} else {
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acc - val
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}
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},
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)
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.parse_next(i)
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}
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// We read an initial factor and for each time we find
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// a * or / operator followed by another factor, we do
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// the math by folding everything
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pub(crate) fn term(i: &mut &str) -> Result<i64> {
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let init = factor.parse_next(i)?;
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repeat(0.., (one_of(['*', '/']), factor))
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.fold(
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move || init,
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|acc, (op, val): (char, i64)| {
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if op == '*' {
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acc * val
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} else {
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acc / val
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}
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},
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)
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.parse_next(i)
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}
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// We transform an integer string into a i64, ignoring surrounding whitespace
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// We look for a digit suite, and try to convert it.
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// If either str::from_utf8 or FromStr::from_str fail,
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// we fallback to the parens parser defined above
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pub(crate) fn factor(i: &mut &str) -> Result<i64> {
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delimited(
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multispaces,
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alt((digits.try_map(FromStr::from_str), parens)),
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multispaces,
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)
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.parse_next(i)
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}
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// We parse any expr surrounded by parens, ignoring all whitespace around those
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fn parens(i: &mut &str) -> Result<i64> {
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delimited('(', expr, ')').parse_next(i)
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}
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