ternlang-core 0.3.3

Compiler and VM for Ternlang — balanced ternary language with affirm/tend/reject trit semantics, @sparseskip codegen, and BET bytecode execution.
Documentation 
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// Module:  stdlib/finance/order_book.tern
// Purpose: Limit Order Book Imbalance
// Author:  RFI-IRFOS
// Ref:     https://ternlang.com

// Microstructure trading signals based on bid/ask volume.

fn book_imbalance_trit(bid_vol: float, ask_vol: float) -> trit {
    let total_vol: float = bid_vol + ask_vol;
    if total_vol == 0.0 { return tend; } // Empty book
    
    let imbalance: float = (bid_vol - ask_vol) / total_vol;
    
    // High bid volume = buy pressure (affirm)
    if imbalance > 0.33 { return affirm; } 
    // High ask volume = sell pressure (reject)
    if imbalance < -0.33 { return reject; }
    
    return tend; // Balanced book
}

fn bid_ask_spread_trit(spread: float, max_allowable_spread: float) -> trit {
    // If the spread is too wide, we should not execute market orders
    if spread > max_allowable_spread { return reject; } // Too illiquid
    return affirm; // Liquid enough to trade
}