8000 Merging multiple single-character expressions · Issue #657 · pegjs/pegjs · GitHub
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Merging multiple single-character expressions #657

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fabiospampinato opened this issue Oct 12, 2020 · 0 comments
Open

Merging multiple single-character expressions #657

fabiospampinato opened this issue Oct 12, 2020 · 0 comments
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@fabiospampinato
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The following rule for me produces a larger parser:

WhiteSpace
  = [\t\v\f \u00A0\uFEFF]

Than this rule:

WhiteSpace
  = "\t"
  / "\v"
  / "\f"
  / " "
  / "\u00A0"
  / "\uFEFF"

While both are in fact equivalent.

I'd expect this and other similar optimizations to reduce the size of the produced parser to be implemented.
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