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Syntax: Rewrite macro_rules #326

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merged 1 commit into from
Aug 20, 2018
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@ehuss ehuss commented Aug 6, 2018

macro_rules failed in a lot of cases, this reworks it to fully support:

  • Complete matcher syntax.
  • Better bracket balancing support.
  • Add lifetime designator (1.28).
  • More resilient to odd syntax within the transcriber. The content doesn't have
    to be Rust syntax, so it can sometimes get confused. Add a few escapes so it
    at least doesn't barf.
  • At-most-once kleene operator (2018).

Closes #311

image

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ehuss commented Aug 20, 2018

bors r+

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bors bot commented Aug 20, 2018

Merge conflict (retrying...)

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macro_rules failed in a lot of cases, this reworks it to fully support:
- Complete matcher syntax.
- Better bracket balancing support.
- Add `lifetime` designator (1.28).
- More resilient to odd syntax within the transcriber.  The content doesn't have
  to be Rust syntax, so it can sometimes get confused. Add a few escapes so it
  at least doesn't barf.
- At-most-once kleene operator (2018).
@ehuss ehuss force-pushed the syntax-macro-rules branch from 32dd27c to b9a965f Compare August 20, 2018 22:15
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ehuss commented Aug 20, 2018

bors r+

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bors bot commented Aug 20, 2018

Merge conflict (retrying...)

bors bot added a commit that referenced this pull request Aug 20, 2018
326: Syntax: Rewrite macro_rules r=ehuss a=ehuss

macro_rules failed in a lot of cases, this reworks it to fully support:
- Complete matcher syntax.
- Better bracket balancing support.
- Add `lifetime` designator (1.28).
- More resilient to odd syntax within the transcriber.  The content doesn't have
  to be Rust syntax, so it can sometimes get confused. Add a few escapes so it
  at least doesn't barf.
- At-most-once kleene operator (2018).

Closes #311 

<img width="903" alt="image" src="https://user-images.githubusercontent.com/43198/43736311-018cc660-9972-11e8-8931-d4d2bd5e7501.png">


Co-authored-by: Eric Huss <[email protected]>
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bors bot commented Aug 20, 2018

Build succeeded

@bors bors bot merged commit b9a965f into rust-lang:master Aug 20, 2018
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