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feat: TA-Lib candlestick patterns — doji-star/gap/high-wave/hikkake (part 4 of 9) (#135)

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* feat: add doji-star, gap, high-wave and hikkake candlestick patterns

Five patterns, all `Input = Candle`, `Output = f64`:

- Evening Doji Star (CDLEVENINGDOJISTAR) — bearish top reversal: long white bar,
  a doji gapping up, then a black bar closing deep into the first body; -1
  (penetration configurable, default 0.3).
- Morning Doji Star (CDLMORNINGDOJISTAR) — bullish bottom reversal mirror; +1.
- Gap Side-by-Side White (CDLGAPSIDESIDEWHITE) — two similar white candles
  opening side by side after a gap, a continuation; gap up +1, gap down -1.
- High-Wave (CDLHIGHWAVE) — a small body with very long shadows on both sides,
  an extreme indecision flag; +1 on detection.
- Hikkake (CDLHIKKAKE) — an inside bar followed by a failed breakout (a trap);
  bullish +1, bearish -1.

Counter 259 -> 264 (mod-count == lib counted block; FAMILIES total 254 -> 259).

* chore: sync indicator count to 264

---------

Co-authored-by: wickra-bot <wickra-bot@users.noreply.github.com>
This commit is contained in:
kingchenc
2026-06-02 16:54:47 +02:00
committed by GitHub
co-authored by wickra-bot
parent 244d754707
commit d43bc9ddf3
19 changed files with 1280 additions and 45 deletions
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CHANGELOG.md
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@@ -42,6 +42,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
- **Gravestone Doji** — a doji opening and closing at the low with a long upper shadow, a bearish reversal; -1 (`CDLGRAVESTONEDOJI`).
- **Long-Legged Doji** — a doji with long shadows on both sides, an indecision signal; +1 detection (`CDLLONGLEGGEDDOJI`).
- **Rickshaw Man** — a long-legged doji with the body centred in the range, an indecision signal; +1 detection (`CDLRICKSHAWMAN`).
- **Evening Doji Star** — a bearish top reversal: long white bar, a doji gapping up, then a black bar closing deep into the first body; -1 (`CDLEVENINGDOJISTAR`).
- **Morning Doji Star** — a bullish bottom reversal: long black bar, a doji gapping down, then a white bar closing deep into the first body; +1 (`CDLMORNINGDOJISTAR`).
- **Gap Side-by-Side White** — two similar white candles opening side by side after a gap, a continuation; gap up +1, gap down -1 (`CDLGAPSIDESIDEWHITE`).
- **High-Wave** — a small body with very long shadows on both sides, an extreme indecision signal; +1 detection (`CDLHIGHWAVE`).
- **Hikkake** — an inside bar followed by a failed breakout, a trap; bullish +1, bearish -1 (`CDLHIKKAKE`).
- **Derivatives family — funding & open interest (part 1).** A new family of
indicators that consume a perpetual / futures tick (`DerivativesTick`,
bundling funding rate, mark / index / futures price, open interest,