Issues

• perf(vm): cache presence of WHITESPACE and COMMENT rules

  pest-parser/pest#1226 · Filter by author benniekiss opened on Oct 6, 2026

• The optimizer's lister rewrite changes what a separated list matches

  needs-reproduction
  pest-parser/pest#1224 · Filter by author yuxi-liu-wired opened on Oct 5, 2026
  1

• A failed POP_ALL in a factored choice leaves the stack emptied for the next branch

  needs-reproduction
  pest-parser/pest#1223 · Filter by author yuxi-liu-wired opened on Oct 5, 2026

• pest_meta::parse_and_optimize panics on some grammars instead of returning an error

  metaneeds-pofneeds-reproduction
  pest-parser/pest#1198 · Filter by author DRMacIver opened on Sep 4, 2026
  1

• Feature Request: *Optionally* add some more information while reporting errors

  pest-parser/pest#1083 · Filter by author oxcrow opened on Feb 16, 2025
  3

• Suggestion: Expose a getter function for LineIndex

  enhancementneeds-pofpest
  pest-parser/pest#981 · Filter by author BoolPurist opened on Feb 18, 2024
  3

• Very unhelpful error messages for unmapped prefix operators in pratt parsers

  bughelp-wanted
  pest-parser/pest#980 · Filter by author rscarson opened on Feb 15, 2024
  3

• Async Pest

  enhancementmaybeneeds-decisionruntime-performance
  pest-parser/pest#974 · Filter by author ekechinwokah opened on Feb 8, 2024
  3

• Feature request: Option to use tags to improve error messages

  help-wanted
  pest-parser/pest#963 · Filter by author rscarson opened on Jan 8, 2024

• Expected operator, found EOI

  bug
  pest-parser/pest#943 · Filter by author lambdaknight opened on Nov 1, 2023
  3

• Pairs has peek() but does not implement Peekable and has a different interface

  bug
  pest-parser/pest#920 · Filter by author frp opened on Aug 26, 2023

• Generating statically typed syntax tree.

  enhancementgenerator
  pest-parser/pest#882 · Filter by author TheVeryDarkness opened on Jul 10, 2023 · v3.0
  16

• Breaking change in 2.7.0: false positive 'expression inside repetition is non-progressing and will repeat infinitely'

  bugneeds-decision
  pest-parser/pest#881 · Filter by author reivilibre opened on Jul 5, 2023
  4

• the error position isn't accurate

  buggood-first-issuehelp-wanted
  pest-parser/pest#870 · Filter by author taodongl opened on Jun 18, 2023
  3

• [feature] Debugger: check the parser's state

  enhancementtoolingvm
  pest-parser/pest#852 · Filter by author Tartasprint opened on May 2, 2023
  3

• POP not follow the Atomic rule

  bughelp-wanted
  pest-parser/pest#721 · Filter by author huacnlee opened on Oct 11, 2022
  4

• [feature] Generating constant str rules

  deriveenhancementgenerator
  pest-parser/pest#718 · Filter by author shilangyu opened on Oct 8, 2022
  3

• Performance issues/timeouts on some grammars

  bughelp-wantedpestruntime-performance
  pest-parser/pest#685 · Filter by author tomtau opened on Aug 10, 2022

• Migration towards snapshot-based testing

  good-first-issuehelp-wanted
  pest-parser/pest#661 · Filter by author bobbbay opened on Jul 23, 2022
  1

• Request for improvement of API

  enhancement
  pest-parser/pest#605 · Filter by author asarkar opened on Jun 23, 2022

• Allow manual rule definition for complex rules

  enhancementgrammar
  pest-parser/pest#600 · Filter by author tadman opened on May 27, 2022
  3

• Stack overflow, long compile times with large repetition values

  bugcompilation-time
  pest-parser/pest#596 · Filter by author tadman opened on Apr 27, 2022
  2

• Separate lexer and parser?

  maybeneeds-decisionneeds-rfcpest
  pest-parser/pest#580 · Filter by author ccleve opened on Feb 7, 2022
  13

• [Request] Add COUNT() option to pest grammar

  enhancementgrammargrammars
  pest-parser/pest#572 · Filter by author mhatzl opened on Dec 18, 2021
  3

• Provide a way to add #[attributes] and custom derive to the generated Rule enum

  enhancementgeneratorneeds-decision
  pest-parser/pest#566 · Filter by author dlight opened on Nov 26, 2021
  2