| 词条 | Ciao (programming language) |
| 释义 |
}}{{Infobox programming language | name = Ciao | logo = Logo_for_Ciao_programming_language.png | paradigm = Logic, functional, modular, object-oriented | year = {{Start date and age|1984}} | dialects = | influenced_by = Prolog | influenced = | operating_system = Cross-platform (Unix, Mac OS X, Windows) | license = GPL, LGPL | website = {{URL|www.ciao-lang.org}} }}Ciao is a general-purpose programming language which supports logic, constraint, functional, higher-order, and object-oriented programming styles. Its main design objectives are high expressive power, extensibility, safety, reliability, and efficient execution.[1] Language CharacteristicsCiao provides a full Prolog system (supporting ISO-Prolog), declarative subsets and extensions of Prolog, functional programming (including lazy evaluation), higher-order (with predicate abstractions), constraint programming, and objects, as well as feature terms (records), persistence, several control rules (breadth-first search, iterative deepening, ...), concurrency (threads/engines), distributed execution (agents), and parallel execution. Libraries also support WWW programming, sockets, external interfaces (C, Java, TclTk, relational databases, etc.), etc.
Ciao is built on a kernel with an extensible modular design which allows both restricting and extending the language — it can be seen as a language building language. These restrictions and extensions can be activated separately on each program module so that several extensions can coexist in the same application for different modules. Developing Safe and Reliable ProgramsProgramming in the large in Ciao is supported via:
Ciao has also support for programming in the small: the compiler is capable of producing small executables (including only those builtins used by the program) and the interpreter supports scripting.
The environment includes a classical top-level and an evolved emacs interface with an embeddable source-level debugger and a number of execution visualization tools.
The Ciao preprocessor supports static debugging and verification assertion checking and optimization via source to source program transformation. These tasks are performed by Ciaopp, distributed separately). Auto-DocumentationCiao includes lpdoc, an automatic documentation generator. It processes programs adorned with (Ciao) assertions and machine-readable comments and generates manuals in many formats including HTML, pdf, texinfo, info, man, etc., as well as on-line help, ascii README files, entries for indices of manuals (info, WWW, ...), and maintains WWW distribution sites. Portability and EfficiencyThe Ciao compiler (which can be run outside the top level shell) generates several forms of architecture-independent and stand-alone executables, which run with speed, efficiency and executable size which are very competitive with other high-level languages in general and in particular with commercial and academic Prolog/CLP systems. Modules can be compiled into compact bytecode or C source files, and linked statically, dynamically, or autoloaded. Further reading
References1. ^{{Cite web|url=https://ciao-lang.org/|title=The Ciao System|website=ciao-lang.org|access-date=2017-08-12}} {{DEFAULTSORT:Ciao (programming language)}} 10 : Logic programming languages|Functional languages|Functional logic programming languages|Cross-platform software|Dynamically typed programming languages|Free compilers and interpreters|Cross-platform free software|Object-oriented programming languages|Scripting languages|Text-oriented programming languages |
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