Implementation resources
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This page lists some resources for learning how to implement array languages. See also the list of open-source array languages, which links to implementations in a wide variety of styles and languages.
Interpreting
- Slides and talk by Rob Pike about implementing ivy
- Bunda-Gerth parsing, implemented with commentary as parse in the dfns workspace
- APL In Exposition, from page 54 (labelled 51) down
- J resources: Parsing and Execution; J Incunabulum discussing Whitney's initial sketch; An Implementation of J
- Let's build a simple interpreter for APL series (incomplete) on Mathspp Blog
- TinyAPL series by Madeline Vergani
- APL Interpreter by Lucas Scharenbroch
Compiling
Because traditional APL does not have a context-free grammar, the language must be modified or restricted in some way to allow it to be compiled. K and BQN have context-free grammars, making them immediately suitable for compilation.
- BQN implementation notes
- Aaron Hsu's tree manipulation talks describe a technique used in Co-dfns.
- Compiling APL to JavaScript describes some implementation decisions made in ngn/apl
| APL development [edit] | |
|---|---|
| Interface | Session ∙ Typing glyphs (on Linux) ∙ Fonts ∙ Text editors |
| Publications | Introductions ∙ Learning resources ∙ Simple examples ∙ Advanced examples ∙ Mnemonics ∙ ISO 8485:1989 ∙ ISO/IEC 13751:2001 ∙ A Dictionary of APL ∙ Case studies ∙ Documentation suites ∙ Books ∙ Papers ∙ Videos ∙ APL Quote Quad ∙ Vector journal ∙ Terminology (Chinese, German) ∙ Neural networks ∙ Error trapping with Dyalog APL (in forms) |
| Sharing code | Backwards compatibility ∙ APLcart ∙ APLTree ∙ APL-Cation ∙ Dfns workspace ∙ Tatin ∙ Cider |
| Implementation | Resources ∙ Open-source ∙ Magic function ∙ Performance ∙ APL hardware |
| Developers | Timeline of corporations ∙ APL2000 ∙ Dyalog ∙ IBM ∙ IPSA ∙ STSC |