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I have a file that has dates in this format: Fri Jun 05, 2015. It's essentially a diary.

I have created the syntax keywords Day, Month, dateNum, and Year for the various components of the date but I want to highlight the date as a single entity. Is it possible to create a syntax rule that is a sequence of keywords?

Here's the contents of my syntax file so far.

syn match Code '`.*`'
syn match Time '[01][0-9]:[0-5][0-9]\(:[0-5][0-9]\)\?'

syn keyword Day Mon, Tue, Wed, Thu, Fri, Sat, Sun, nextgroup=Month
syn keyword Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec nextgroup=dateNum

syn match dateNum '[0-3][0-9],'  nextgroup=Year
syn match Year '\d\{4}'

syn region Code start="`" end="`"

I am manually setting the highlighting for these groups for the time being (e.g. hi Time gui=bold).

Here's a sample diary file. Note that the highlighting for Time and Code already work.

Sun Jun 07, 2015

23:48 Checked out `bleeding-edge` branch.

Mon Jun 08, 2015

09:17 Woke up

09:18 Hit snooze.
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Yes; you can just combine the keywords in a long :syntax match sequence. For example:

augroup diary
    autocmd!
    autocmd ColorScheme,BufRead,BufNewFile *
        \  syntax match DiaryDate "\v(Mon|Tue|Wed|Thu|Fri|Sat|Sun) (Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec) \d\d, \d\d\d\d"
        \| highlight DiaryDate ctermbg=green guibg=green
augroup END

enter image description here

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  • I was hoping that I could use the keywords I already generated. Is that possible? I also don't understand some of the syntax. What is the \v at the start of the match string? And, what does the escaped-pipe, \| mean? Jun 11 '15 at 15:38
  • @Stephen the \v is the [very magic]( vim.wikia.com/wiki/…) regex switch it makes all characters having a special meaning excepted [a-zA-Z0-9] and _
    – statox
    Jun 13 '15 at 9:54

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