regex-tester

Regex Tester Tool

Description

Test and debug regular expressions with match highlighting, capture group extraction, and a library of common patterns.

Trigger

• /regex command
• User needs to test regex
• User wants pattern matching help

Usage

# Test pattern
python scripts/regex_tester.py "\\d+" "abc123def456"

# Show capture groups
python scripts/regex_tester.py "(\\w+)@(\\w+)" "user@domain" --groups

Find all matches

python scripts/regex_tester.py "\b\w{4}\b" "The quick brown fox" --all

Use common pattern

python scripts/regex_tester.py --pattern email "Contact: test@example.com"

## Tags
`regex`, `pattern`, `match`, `test`, `text`

## Compatibility
- Codex: ✅
- Claude Code: ✅