regtraxlisted

# REGTRAX — Regex Railroad Visualizer > "Don't just write Regex. Replay it." **Author:** jord0 | **Version:** 1.0 --- ## Prerequisites - Python 3 (for `http.server`) - Modern browser (Chrome, Firefox, Safari, Edge) --- ## Usage Describe what you want to match, or paste a regex you want to understand. REGTRAX generates an animated railroad diagram and serves it in your browser. ``` Match email addresses that end in .gov or .mil ``` ``` Debug this regex: ^(\d{4}-\d{2}-\d{2})\s(INFO|WARN|ERROR)\s(\w+):\s(.+)$ ``` ``` Explain this pattern — I inherited it and nobody knows what it does ``` ### What You See A dark-themed railroad diagram with colour-coded nodes: cyan for literals, amber for character classes, violet for quantifiers, emerald for groups, rose for anchors. Type a test string and watch a photon walk the track — green on match, red on failure with the exact derailment point highlighted. --- ## When to Invoke - User asks for help writing a regex - User wants to understand/debug an existing regex - User says "regex", "pattern", "match", "railroad", "visualize" - User provides a natural language description of what to match - User has a regex that isn't working and wants to see why --- ## Capability Lookup | Task | REGTRAX Does | |------|-------------| | Natural language → regex | Write the pattern + explanation | | Explain existing regex | Parse it, describe each part | | Debug failing regex | Visualize where the match fails | | Test regex interactively