Better support for C style multiline comments

[jansol]

Check for existing issues

• [X] Completed

Describe the feature

The "toggle comment" action prepends the line command marker to the current/selected line(s). However in C files, it uses the C++-style line comment marker //, which is not available before C99 and disallowed by policy in several environments (such as those following MISRA-C-2004)

It would be nice if zed would use the C style comment block syntax in C files instead: /* */.

• [ ] Block comment blocks may not be nested
• [ ] Block comments may span multiple lines
• [x] An option for prefixing each line within a multi-line comment automatically with * (note the space to align with the * of the initial /*) would be nice (not required but it is a common convention to denote that a line is part of an ongoing comment without having to scan through to the end of the line)
  • [x] (including for newlines typed while editing such a comment)

If applicable, add mockups / screenshots to help present your vision of the feature

No response

[notpeter]

VSCode has dedicated shortcuts for multiline comment in addition to cmd+/ or ctrl+/

Windows: shift+alt+A Linux: shift+ctrl+A MacOS: shift+option+A

[notpeter]

Users of other languages have request similar features:

• php: https://github.com/zed-industries/zed/issues/17261
• golang: https://github.com/zed-industries/zed/issues/14485#issuecomment-2229642428

See also:

• https://github.com/zed-industries/zed/issues/4751