Text Processingflags: g

C-Style Block Comment

Match C-style /* ... */ block comments across multiple lines.

Try it in RegexPro →

Available in

JSSupported

JavaScript / ECMAScript

Browser-native RegExp. Default if you don't pick.

PYSupported

Python (re)

CPython stdlib `re`. Unicode-aware `\w` and `\d` by default.

GOSupported

Go (RE2)

Linear-time matching. No backreferences or lookarounds.

Pattern

regexengine-agnostic
\/\*[\s\S]*?\*\/   (flags: g)

Raw source: \/\*[\s\S]*?\*\/

How it works

\/\* matches the literal `/*`. [\s\S]*? lazily matches any characters including newlines (the [\s\S] idiom avoids needing a dotAll/s flag). \*\/ matches the closing `*/`. Lazy matching ensures adjacent comment blocks aren't merged into one giant match.

Examples

Input

/* one */ var x = 1; /* two\nlines */ y = 2;

Matches

  • /* one */
  • /* two\nlines */

Input

/** JSDoc here */

Matches

  • /** JSDoc here */

Input

// not a block comment

No match

—

Common use cases

  • •Stripping comments from source for minification
  • •Extracting JSDoc / Doxygen blocks for documentation
  • •Linting commented-out code
  • •Translating comment styles between languages
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