v2.2.0

[tomtau]

What's Changed

• Unicode 14 support
• sha-1 upgraded and unnecessary dependencies removed
• code quality improvements and migration to the 2018 edition
• benchmark code migrated to criterion
• optimizations (see Add more optimizations #473 and Make keyword and builtin sets static #554 )
• no_std compatibility
• error reporting improvements (using thiserror, better printing, API improvements)
• allowing infix operators in prefix expressions

New Contributors

• @yamafaktory made their first contribution in Add jql - A JSON Query Language CLI tool - to the projects using pest #361
• @cch123 made their first contribution in add elastic-rs which use pest as parser #368
• @adamAndMath made their first contribution in Removing deprecated method calls from README #371
• @Nadrieril made their first contribution in Fix #374 #375
• @golddranks made their first contribution in Clearing checkpoints in error handler on successful parse #395
• @PvdBerg1998 made their first contribution in Check if start < end in Pair::as_str #403
• @alex made their first contribution in Update generator to use 1.0 releases of syn, quote, and proc-macro2 #406
• @roblabla made their first contribution in Don't enable std feature on sha-1 #410
• @cr0sh made their first contribution in Fix incorrect align when underlining lines with tab... #408
• @Schaeff made their first contribution in Add ZoKrates to list of projects in README #404
• @shnewto made their first contribution in Add AshPaper to the list of projects using pest #422
• @bookmoons made their first contribution in Automated fuzzing #412
• @gkelly made their first contribution in Fix tarpaulin on Travis CI #435
• @nagisa made their first contribution in Remove HashMap from derive/generate #442
• @pr2502 made their first contribution in initial static precedence climber #445
• @jakubadamw made their first contribution in Bump sha-1 to 0.9. #465
• @MarinPostma made their first contribution in adds message method to ErrorVariant #454
• @SkiFire13 made their first contribution in Fix build after PR #454 #480
• @teymour-aldridge made their first contribution in Add Myoxine. #470
• @MaxBondABE made their first contribution in Migrate from Travis CI to Github Actions #486
• @rafael-patronilo made their first contribution in Update to Unicode 13 #468
• @01mf02 made their first contribution in Make pest no_std compatible. #498
• @lucperkins made their first contribution in Add Vector to projects using Pest #487
• @mitnk made their first contribution in adding new project using pest in readme #511
• @nkreipke made their first contribution in Add a function to retrieve the path from the Error struct #514
• @kaikalii made their first contribution in implement Copy for Position and Span #534
• @mrtnzlml made their first contribution in README: add insta crate into projects using pest #532
• @huacnlee made their first contribution in Add project using pest #529
• @tmandry made their first contribution in Use the source-relative path in include_str! #522
• @Turbo87 made their first contribution in Fix CI issues #537
• @aofdev made their first contribution in Add yaml-peg to projects using Pest #538
• @NoahTheDuke made their first contribution in Remove duplicated macro insert_public_builtin #556
• @Anton-4 made their first contribution in removed unused maplit #561
• @andybest made their first contribution in Don't enable "std" for ucd-trie when std not selected #562
• @Geobert made their first contribution in Add project using pest #575
• @bryantbiggs made their first contribution in fix: Remove deprecated Travis-CI links and deprecated badges section #585
• @jwpjrdev made their first contribution in Add Gitpod config #592
• @tomtau made their first contribution in fix: Limit error messages new line visualization (fixes #362) #609
• @bobbbay made their first contribution in Migrate to thiserror #641
• @abhimanyu003 made their first contribution in Adding qubit in "Projects using pest" #567

Full Changelog: v2.1.0...v2.2.0

---

This discussion was created from the release v2.2.0.

[Geobert]

Thank you very much for the hardwork and keeping pest alive!

[MarijnS95]

Could #522 have been a breaking change? I'm now seeing this with liquid-core:

error: couldn't read /home/marijn/.cargo/registry/src/github.com-1ecc6299db9ec823/liquid-core-0.24.1/src/parser/parser/grammar.pest: No such file or directory (os error 2)
  --> /home/marijn/.cargo/registry/src/github.com-1ecc6299db9ec823/liquid-core-0.24.1/src/parser/parser.rs:19:14
   |
19 |     #[derive(Parser)]
   |              ^^^^^^
   |
   = note: this error originates in the macro `include_str` (in Nightly builds, run with -Z macro-backtrace for more info)

When changing #[grammar = "parser/grammar.pest"] into #[grammar = "grammar.pest"], a different error appears which I believe comes from:

pest/generator/src/lib.rs

Line 52 in 99cbc31

Err(error) => panic!("error opening {:?}: {}", file_name, error),

error: proc-macro derive panicked
  --> /home/marijn/.cargo/registry/src/github.com-1ecc6299db9ec823/liquid-core-0.24.1/src/parser/parser.rs:19:14
   |
19 |     #[derive(Parser)]
   |              ^^^^^^
   |
   = help: message: error opening "grammar.pest": No such file or directory (os error 2)

Is this something that should be updated on the liquid-core side, or is the generator taking in the wrong file?

[NoahTheDuke]

See #672 as well. Might need to undo this change.

[MarijnS95]

Please revert if you can; I've been looking into the linked PR #522 and it doesn't seem correct at all. include_str! receives a path relative to the source file yet the same path is used directly on top of $CARGO_MANIFEST_DIR/src/<the file>, disregarding any nested modules.

[tomtau]

FYI v2.2.0 was yanked and v2.2.1 was published (it reverted the breaking change): https://github.com/pest-parser/pest/releases/tag/v2.2.1

[tomtau]

There was another small breaking change found: #693 , hence v2.2.1 was yanked and v2.3.0 was published: #701