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How far to buffer? about micromark HOT 5 CLOSED

micromark avatar micromark commented on May 14, 2024
How far to buffer?

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Comments (5)

ChristianMurphy avatar ChristianMurphy commented on May 14, 2024 2

One possible answer:
We buffer until we can reliably determine which node type will be used.
For example, incremental GLR parser buffering (see https://github.com/lezer-parser/lezer, https://lezer.codemirror.net/docs/guide/#ambiguity)

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fazouane-marouane avatar fazouane-marouane commented on May 14, 2024 1

For indented code etc, could we stream the underlying data instead of buffering it or is there some gotchas?

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wooorm avatar wooorm commented on May 14, 2024

It seems to be possible to parse Markdown line-by-line, therefore one line would be the farthest one has to buffer.
A higher-level mechanism may have to “buffer” things though:

  • For the indented code: blank line blocks are buffered when in an indented code block, and only output if there is a non-blank indented code line after them (and ignore if not)
  • For definitions, I’m working on “MaybeDefinition” and “MaybeDefinitionTitle” blocks, which could be turned into “Paragraph”s if they can’t be valid, or “Definition”s if they are

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wooorm avatar wooorm commented on May 14, 2024

For indented code, it can already stream chunks of code, and blank lines (both as tokens), but to go to HTML you’d need to buffer continued blank lines and ignore them if they are not followed by more code chunks, and use them if they are!

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wooorm avatar wooorm commented on May 14, 2024

No need to buffer: we can instead queue tokens (at most a line), and later act on that queue. Specified in CMSM: Overview

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