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I created my own syntax file tailored to UVM log files, in which each line is formatted in the same way:

<msg severity> <path>(<line number>) @ <simulation time>: <hierarchy> [<id>] <message>

example: enter image description here

I defined the syntax without any "conceal", because by default the reader would want to see all the parts of all the messages.

However, I wonder if having broken up the line to different syntax constructs can be leveraged to allow some simple command to conceal and unconceal parts of the message.

For example if I have defined

syn region filepath start="\/" end="[^\(]\+" oneline

it would be awesome to be able to type something like

:conceal syn filepath

and have it be recognized because "filepath" is defined as a syntax.

Or better yet, conceal the type of syntax that's under the cursor.

Then later I would want to be able to undo it, in case I suddenly want to look at the file paths.

Cheers

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    I don't think you can conditionally hide individual syntax groups. Conceal is either on or off (with the exception of how concealcursor works).
    – D. Ben Knoble
    Jun 29, 2022 at 19:43
  • Oh well. Once I realized that line wrap doesn't take conceal into consideration, the appeal of conceal went way down. Thanks Jun 30, 2022 at 9:41

1 Answer 1

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I don't think you can conditionally hide individual syntax groups. Conceal is either on or off ('conceallevel'), with the exception of how 'concealcursor' works.

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