Here is a regular expression for C++-style comments (/\*([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\*+/)|(//.*) (source: http://ostermiller.org/findcomment.html htt

Here is a regular expression for C++-style comments (/\*([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\*+/)|(//.*) (source: http://ostermiller.org/findcomment.html http://ostermiller.org/findcomment.html ) I recently wrote a lexicasl analyser for a language that uses C++-style comments. My first attempt used regular expressions, but I later scrapped them for something I could understand. Here is the relevant bit: # //... comments if ss.isNextSkip("//"): ss.skipPast("\n") return # /*...*/ comments if ss.isNextSkip("/*"): ss.skipPast("*/") return I will leave it to the reader to decide which is clearer.