ZhouYongyou 7e049cd8b4 fix(decision): correct regex pattern to avoid matching non-json code blocks ...

## Problem

Commit 63e31ae introduced a regex pattern that was too permissive:
```go
reJSONFence = regexp.MustCompile("(?is)```(?:json[a-z0-9_-]*)?\...")
```

This could match ANY code block (```text, ```js, etc.), not just JSON.

## Issues

1. **Wrong Match**: Could extract from non-JSON code blocks
2. **Escaping**: Triple backticks in double quotes may cause issues
3. **Too Loose**: Regex accepts ```, ```json, ```json5, etc.

## Fix

Revert to safe, precise regex:
```go
reJSONFence = regexp.MustCompile(`(?is)` + "```json\s*...")
```

- ✅ Only matches ```json code blocks
- ✅ Uses backticks + string concat to avoid escaping
- ✅ Keeps performance optimization (precompiled)

## Testing

- ✅ Compiles successfully
- ✅ Regex patterns verified
- ✅ No syntax errors

Related: #regex #json-extraction #bug-fix

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

2025-11-05 00:43:10 +08:00

..

engine.go

fix(decision): correct regex pattern to avoid matching non-json code blocks

2025-11-05 00:43:10 +08:00

prompt_manager.go

Supports custom system prompts and custom models.

2025-11-01 19:45:54 +08:00