oilshell.org

Oil Blog

Latest Posts

2018-08-19 Release of OSH 0.6.pre2
2018-08-15 Summer Vacation is Over!
2018-07-23 OSH 0.5 - A Release with Many Contributors
2018-07-22 Summer Blog Topics
2018-07-21 Summer Status Update

Where Should I Start Reading?

  Why Create a New Unix Shell?
  Popular Posts With Many Comments
Pratt Parsing Index and Updates - Popular posts about expression parsing algorithms.
   
2016-11-20 Blog Retrospective #1
2017-04-21 Blog Retrospective #2
2017-11-30 Blog Retrospective #3

Read Posts on a Particular Topic

ASDL (8)    awk (3)    bernstein-chaining (2)    blog-meta (11)    blog-topics (6)    boil (2)    correction (1)    data-structures (2)    escaping-quoting (5)    FAQ (2)    lexing (3)    linux-distro (1)    make (5)    metaprogramming (3)    metrics (5)    misc (4)    oheap (3)    oil-dev (8)    oil-language (8)    oil-release (9)    opy (5)    osh-to-oil (2)    OVM (5)    parsing (11)    parsing-is-difficult (1)    parsing-shell (16)    performance (2)    project-roadmap (10)    project-updates (20)    python (5)    recurse-center (6)    sample-code (12)    shell-runtime (4)    shell-style-guideline (2)    shell-the-bad-parts (9)    shell-the-good-parts (2)    testing (5)    translated-post (1)    type-checking (2)    unix-tools (2)    usage-tips (5)    utf8 (3)    why-a-new-shell (4)   

All Posts in Chronological Order

2016-10-10 What Oil Looks Like, and a Plan for This Blog
2016-10-11 Oil Can Parse Real Shell Programs
2016-10-12 [ Is a Builtin, But [[ Is Part of the Language
2016-10-13 Oil Parses Shell Scripts Up Front in a Single Pass. Other Shells Don't.
2016-10-14 Oil Now Parses My /etc/init.d Directory
   
2016-10-15 Blog Roadmap, and Project Roadmap
2016-10-16 debootstrap Parsed
2016-10-17 How to Parse Here Documents
2016-10-18 Shells Use Temp Files to Implement Here Documents
2016-10-19 Lexical State and How We Use It
   
2016-10-20 Parsing Bash is Undecidable
2016-10-22 New Terminology: Static Parsing vs. Dynamic Parsing
2016-10-23 Roadmap #2
2016-10-24 Four More Projects Parsed
2016-10-26 Grammar for Variable Substitutions
   
2016-10-28 The Five Meanings of #. And What Does ${####} Mean?
2016-10-29 Four Slashes and Three Meanings
   
2016-11-01 Pratt Parsing and Precedence Climbing Are the Same Algorithm
2016-11-02 Review of Pratt/TDOP Parsing Tutorials
2016-11-03 Pratt Parsing Without Prototypal Inheritance, Global Variables, Virtual Dispatch, or Java
2016-11-05 Pratt Parsers Can Be Statically Typed
2016-11-06 Thirteen Incorrect Ways and Two Awkward Ways to Use Arrays
   
2016-11-07 Contrived Example Found in the Wild
2016-11-09 Parsing 183,000 Lines of Git's Shell Source Code
2016-11-13 Shell, Awk, and Make Should Be Combined
2016-11-14 Example Code in Shell, Awk, and Make
2016-11-17 OSH Can Be Parsed With Two Tokens of Lookahead
   
2016-11-18 Problems With $((
2016-11-19 Oil is on Github
2016-11-20 Blog Retrospective #1
2016-11-21 Roadmap #3: Two Top Priorities
2016-11-25 Roadmap #3 Continued
   
2016-11-29 Status Update: the Backbone of the Interpreter
2016-11-30 A Problem with Type Checking
   
2016-12-05 Type Checking vs. Metaprogramming; ML vs. Lisp
2016-12-11 What is Zephyr ASDL?
2016-12-16 Analogies for ASDL
2016-12-23 A Math Problem: Function-Directed Enum Labeling
2016-12-26 Four Functions and Enum Labelings
   
2016-12-27 Bespoke Superoptimization
2016-12-29 Using Reddit for Blog Comments
2016-12-30 Questions about Superoptimization
   
2017-01-04 Success with ASDL
2017-01-06 ASDL Implementation and Use Cases
2017-01-09 What is oheap?
2017-01-13 Shell Has a Forth-like Quality
2017-01-15 Pipelines Support Vectorized, Point-Free, and Imperative Style
   
2017-01-19 On the Wiki: Project Goals and Related Projects
2017-01-21 Pretty Printing ASTs with ASDL, and Metaprogramming
2017-01-26 The Thinner Waist of the Interpreter
2017-01-31 Bernstein Chaining of ssh and su
   
2017-02-05 Translating Shell to Oil
2017-02-06 Translating Shell to Oil, Part Two
2017-02-11 From AST to Lossless Syntax Tree
2017-02-26 Status Update and Blog Backlog
2017-02-27 Review of Roadmap #3
   
2017-03-01 Project Roadmap #4
2017-03-04 If you have Debian/Ubuntu, and Five Minutes
2017-03-09 Oil-dev is Alive!
2017-03-23 Measuring Progress with Tests
2017-03-30 Precedence Climbing is Widely Used
   
2017-03-31 Pratt Parsing Index and Updates
   
2017-04-08 The Riskiest Part of the Project
2017-04-09 An Unexpected Solution: Cobbling Together a Python Interpreter
2017-04-20 Switching to "Twitter Mode"
2017-04-21 Blog Retrospective #2
2017-04-22 Code for the Shunting Yard Algorithm, and More
   
2017-04-23 The OPy Front End is Working
2017-04-25 OVM will be a Slice of the CPython VM
   
2017-05-05 Rewriting Python's Build System From Scratch
2017-05-31 Post-Vacation Update and Build System Observations
   
2017-06-02 Project Metrics
2017-06-19 Working Toward an OSH Release
2017-06-22 How I Use Tests
2017-06-24 How I Plan to Use Tests: Transforming OSH
   
2017-07-02 OSH Runs Real Shell Programs
2017-07-23 Please Try the First OSH Release
2017-07-28 The Long Slog Through the Shell (abridged)
2017-07-29 Review of Roadmap #4 (abridged)
2017-07-31 Post-Release Blog Topics
   
2017-08-12 Avoid Directly Manipulating File Descriptors in Shell
2017-08-31 Problems With the test Builtin: What Does -a Mean?
   
2017-09-09 Please Try the OSH 0.1 Release
2017-09-19 How to Quickly and Correctly* Generate a Git Log in HTML
2017-09-29 Git Log in HTML: A Harder Problem and A Safe Solution
   
2017-10-06 Roadmap #5: Why Oil, and Why OSH?
2017-10-24 Status Update: Parser Correctness and Performance
2017-10-25 Comments About Shell, Awk, and Make
   
2017-11-10 OSH 0.2 - Parsing One Million Lines of Shell
2017-11-28 Correction: How to Parse Here Documents
2017-11-30 Blog Retrospective #3
   
2017-12-15 The Oil Lexer: Introduction and Recap
2017-12-17 When Are Lexer Modes Useful?
2017-12-22 OSH 0.3 - Optimization, Benchmarks, and Bug Fixes
   
2018-01-15 Success with Aboriginal, Alpine, and Debian
2018-01-28 Why Create a New Unix Shell?
2018-01-31 Popular Posts with Many Comments
   
2018-02-03 OSH 0.4 - A Shell Language That's Nearly Feature Complete
2018-02-14 CommonMark is a Useful, High-Quality Project
   
2018-03-04 Building Oil with the OPy Bytecode Compiler
2018-03-25 I'm Attending Recurse Center this Summer
2018-03-27 Addendum: Two Recurse Center Projects That Explain CPython
   
2018-04-26 oil-dev is moving to Zulip
2018-04-30 Release of OSH 0.5.alpha3
   
2018-07-21 Summer Status Update
2018-07-22 Summer Blog Topics
2018-07-23 OSH 0.5 - A Release with Many Contributors
   
2018-08-15 Summer Vacation is Over!
2018-08-19 Release of OSH 0.6.pre2