add scdoc syntax highlighting

supercollider / scvim

Vim plugin for SuperCollider

GNU General Public License v3.0

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add scdoc syntax highlighting #41

Closed mossheim closed 5 years ago

mossheim commented 6 years ago

This PR adds highlighting for schelp files. The choices of highlighting links are totally arbitrary and open to discussion. I tried to follow the markup syntax as best I could; features include:

highlighting for all scdoc tags
specialized formatting for strong, emphasis, soft, link, anchor, image regions
you get highlighting of code blocks "for free" using syn include
nested trees, tables, other structures
notes and warnings containing nested modal tags (strong::, etc) are highlighted

mossheim commented 6 years ago

The only thing I don't like that I can't figure out how to fix is highlighting within inline code sections. Right now in code::test::, the sc highlighting picks up test: as a keyword selector, presumably because it's using lookahead in its regex(?). I tried several times to fix this but none of them worked. I'm considering just turning it off for inline code and leaving it only for code blocks.

dvzrv commented 6 years ago

This looks very useful! @brianlheim if you disable this for code::test::, can you add a a comment saying why (e.g. test: gets picked up as keyword selector - needs further investigation)?