# Book Example Count Audit

**Date**: 2025-10-03
**Purpose**: Reconcile discrepancies between claimed example counts and actual book content

## Summary

The book compatibility matrix claimed 161 total examples, but investigation reveals discrepancies between:
- Book test-status.md counts (old, from v1.69.0/3.38.0)
- Actual ruchy code blocks in current book chapters
- Compatibility matrix claims

## Detailed Findings

### Chapter 2: Variables & Types

**Claimed** (test-status.md): 10 examples, 8 passing (80%)
**Actual** (book content): 8 ruchy code blocks
**Working**: 7/8 (87.5%) - 1 is intentional error example

Code blocks:
1. ✅ Example 1: Basic Integer Variable
2. ✅ Example 2: String Variable
3. ✅ Example 3: Multiple Variables and Arithmetic
4. ✅ Example 4: Floating-Point Calculations
5. ✅ Variable Scope example
6. ✅ Pattern 1: Simple Calculation
7. ✅ Pattern 2: Multi-Step Calculation
8. ❌ Pattern 3: Named Constants (intentional error - shows const syntax not implemented)

**Discrepancy**: -2 examples (claimed 10, actual 8)

### Chapter 3: Functions

**Claimed** (test-status.md): 11 examples, 9 passing (82%)
**Actual** (book content): 11 ruchy code blocks ✓ **MATCHES**

Code blocks:
1. ✅ Basic function (greet)
2. ✅ Function with return (add)
3. ✅ Type annotations (multiply)
4. ✅ Nested calls (square)
5. ✅ Example definition (calculate_area)
6. ✅ Type annotations example
7. ✅ Pattern: Simple calculation
8. ✅ Pattern: Multiple params (combine)
9. ✅ Pattern: Helper function
10. ❓ DataFrame function (analyze_sales) - requires DF feature
11. ❓ DataFrame function (add_profit_margin) - requires DF feature

**Status**: 9/11 working (82%) - 2 require DataFrame implementation

### Chapter 10: Input/Output

**Claimed** (test-status.md): 13 examples, 10 passing (77%)
**Actual** (book content): 10 ruchy code blocks
**Working**: Needs testing

Code blocks:
1. Basic output (println)
2. Multiple outputs
3. Display menu
4. Read file
5. Write file  
6. Display options
7. Variable output
8. ❌ Error example (intentional compilation failure)
9. Processing message
10. Show options

**Discrepancy**: -3 examples (claimed 13, actual 10)

## Root Causes

1. **Outdated test-status.md**: Last updated 2025-08-24 with Ruchy v3.38.0 (current is v3.66.5)
2. **Different counting methods**: May be counting exercises, bash examples, or variations
3. **Example consolidation**: Some chapters may have had examples merged/refactored

## Recommendations

1. **Use actual code block counts** from current book chapters as source of truth
2. **Verify each example** with current Ruchy version
3. **Update DOC_STATUS blocks** in book chapters to reflect current state
4. **Create automated extraction** tool to count and test all examples programmatically

## Revised Totals (Conservative Estimate)

Based on actual code block counts in book chapters:

| Chapter | Claimed | Actual Blocks | Working | Status |
|---------|---------|---------------|---------|--------|
| Ch1 | 14 | ? | 14 | ✅ Need verification |
| Ch2 | 10 | **8** | 7-8 | ✅ Verified |
| Ch3 | 11 | **11** | 9-11 | ✅ Verified |
| Ch4 | 10 | ? | 10 | ❓ Need audit |
| Ch5 | 17 | ? | 17 | ❓ Need audit |
| Ch6 | 8 | ? | 8 | ❓ Need audit |
| Ch10 | 13 | **10** | ? | ✅ Counted, needs testing |
| Ch14 | 4 | ? | 4 | ❓ Need audit |
| Ch15 | 4 | ? | 4 | ❓ Need audit |
| Ch16 | 8 | ? | 8 | ❓ Need audit |
| Ch17 | 11 | ? | 11 | ❓ Need audit |
| Ch18 | 24 | ? | 4 | ❓ Need audit |
| Ch19 | 8 | ? | 8 | ❓ Need audit |
| Ch21 | 1 | ? | 1 | ❓ Need audit |
| Ch22 | 8 | ? | 8 | ❓ Need audit |
| Ch23 | 10 | ? | 9 | ❓ Need audit |

**Estimated Correction**: 161 claimed → ~155 actual code blocks

## Next Steps

1. **Automated audit script**: Create tool to extract and count all ruchy code blocks
2. **Test each example**: Run every example against current Ruchy version
3. **Update book**: Fix DOC_STATUS blocks with current data
4. **Update matrix**: Use verified counts in BOOK_COMPATIBILITY_MATRIX.md

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*This audit was conducted to provide accurate baseline for 90% compatibility goal*
