overlength.vim

Highlight when lines go over the length that you want them.

Usage

This plugin is on by default when you install it 😄

To toggle or turn it off, you can do the following:

call overlength#toggle():

• (Function): Turn on and off overlength highlighting
• Example: call overlength#toggle()
• Alternatives: call overlength#disable() or call overlength#enable()

Configuration

Example configuration:

let overlength#default_overlength = 120

" Disable highlighting in markdown.
call overlength#set_overlength('markdown', 0)

" To disable highlighting in multiple fts at once
call overlength#disable_filetypes(['markdown', 'term'])

" Highlight only at 120 characters in vim, even though textwidth = 78
call overlength#set_overlength('vim', 120)

overlength#default_to_textwidth:

• (Setting): Default to using the &textwidth option as the column to start drawing the overlength highlighting
  • Options:
    • 0: Don't use &textwidth at all. Always use overlength#default_overlength.
    • 1: Use &textwidth, unless it's 0, then use overlength#default_overlength.
    • 2: Always use &textwidth. There will be no highlighting where &textwidth == 0, unless added explicitly
• Default: 1
• Example: let overlength#default_to_textwidth = 0

call overlength#set_overlength(filetype, length):

• (Function): Set a specific overlength value for a filetype
  • If set to 0, then overlength will not highlight for that buffer
• Example: call overlength#set_overlength('python', 120)

overlength#default_overlength:

• (Setting): Decide the default length when there is no filetype specific request
  • Depends on overlength#default_to_textwidth to be on an applicable setting
• Default: 80
• Example: let overlength#default_overlength = 72

overlength#default_grace_legnth:

• (Setting): Decide how many spaces past your overlength you'd like to start highlighting
• Default: 1
• Example: let overlength#default_grace_legnth = 5

call overlength#set_highlight(cterm, guibg):

• (Function): Change the highlighting background by specifying a cterm and guibg
• Example: call overlength#set_highlight('darkgrey', '#8b0000')

overlength#highlight_to_end_of_line:

• (Setting): Highlight only the column or until the end of the line
• Default: v:true
• Example: let overlength#highlight_to_end_of_line = v:false

Note on Multi Width Bug

I cannot figure out how to solve the problem for the case where overlength#highlight_to_end_of_line is set to v:false (i.e., you only want highlighting on the column only, not the whole line) due to the vim limitation of:

	Note that some virtual column positions will never match, because they
	are halfway through a tab or other character that occupies more than
	one screen character.

So, sometimes the highlighting will miss. If this bothers you, please leave an issue and maybe I can fix it.