APL-sharp: Difference between revisions
Miraheze>Adám Brudzewsky No edit summary |
Miraheze>Marshall mNo edit summary |
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| license = Unavailable / Proprietary software | | license = Unavailable / Proprietary software | ||
| implementation languages = [[wikipedia:C_Sharp_(programming_language)|C#]] | | implementation languages = [[wikipedia:C_Sharp_(programming_language)|C#]] | ||
| platform = [ | | platform = [[wikipedia:Common Language Infrastructure|CLI]] | ||
| operating systems = Microsoft Windows, macOS, Symbian OS, Linux | | operating systems = Microsoft Windows, macOS, Symbian OS, Linux | ||
| influenced by = [[APL2]], [[J]], [[Dyalog APL]], [[wikipedia:C_Sharp_(programming_language)|C#]] | | influenced by = [[APL2]], [[J]], [[Dyalog APL]], [[wikipedia:C_Sharp_(programming_language)|C#]] | ||
Revision as of 14:50, 14 November 2019
APL# (pronounced APL Sharp) was presented by Dyalog Ltd. at the 2010 APL conference in Berlin. The goal was to make the benefits of safe/managed computing available to users of APL through the development of an APL dialect targeting Microsoft Silverlight/Moonlight and featuring tight integration with Microsoft .NET.
APL# was to be a new dialect of APL designed with object-oriented/language-agnostic platforms in mind, using Microsoft .NET as the initial target platform. Although portability of old APL code to APL# was an important consideration, the fact that complete upwards compatibility with "classic" APL was not achievable allowed an attempt to tidy up a few other aspects of APL. The goal was to produce a language which was as powerful a Tool of Thought as classic APL and APL2, at the same time as feeling significantly more acceptable to a software engineer.
However, taking full advantage of the shared type system and related services which forced the abandoning some of the most central dogma of "classic" APL interpreters:
- The notion that APL only has two data types: numbers and characters
- That arguments are always passed "by value"
- User-defined names are global by default, and local variables are visible to all sub-functions
APL# featured a single functional form (besides for trains) which was a hybrid between dfn and tradfn syntax, superficially resembling that of dfns, but allowing a header (calling signature) and control structures.
In 2012 Microsoft deprecated Silverlight for HTML5 in Windows 8, and Dyalog subsequently abandoned the APL# project.