[vim/vim] vim not detecting long comments in HTML (Issue #13885)

[Srajan Dehariya]

Steps to reproduce

1. Open an HTML file with ~2000 lines of code (may include css or js)
2. Do a multiline comment on a large part of code by enclosing it with <!-- and --> (about 700 lines)
3. Save and close the file. ( The cursor is where the comment ends)
4. Again open the same file, it will not detect a major part of comment as comment and show as usual HTML, CSS or Js code.

Expected behaviour

It was expected to detect the closing of comment and color the commented code as comments.

Version of Vim

9.0.1499

Environment

Operating system: Debian 12
Terminal: Konsole
Value of $TERM: xterm-256color
Shell: Bash

Logs and stack traces

No response

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[Christian Robinson]

This is intentional, to keep Vim from slowing down too much with huge syntax regions. If you want to override this behavior try:

    :syn sync fromstart 

In the HTML file. 

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Christian J. Robinson

On Jan 18, 2024, at 1:57 PM, Srajan Dehariya <vim-dev...@256bit.org> wrote:



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[Christian Brabandt]

You are not very specific, there are two things that may come into play:

• the column where the cursor is is too far away from the beginning of the line. This is handled by the 'synmaxcol' option and in general is a good idea to limit to avoid slowness
• the syntax file may get out of sync. You can force to resync by using :syn sync fromstart.

Please read the help at :h syn-sync and :h 'synmaxcol'.

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[Srajan Dehariya]

Closed #13885 as completed.

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