Recent changes to Home

WikiPage Home modified by Victor Anyakin

Victor Anyakin — Tue, 18 Dec 2012 12:27:49 -0000

--- v10
+++ v11
@@ -19,7 +19,7 @@
 Either ASDF-INSTALL using the latest distribution in the [releases folder](https://sourceforge.net/projects/cl-ntriples/files/releases/). Or go the modern way:

 ~~~~~~
-:::lisp
+:::common lisp
 (ql:quickload "cl-ntriples")
 ~~~~~~

@@ -30,6 +30,7 @@
 CL-NTRIPLES was developed for a practical purpose of accessing the wealth of data accumulated by the DBPedia project. For example, let's query information about a Ukrainian city of Chernihiv (wiki, dbpedia):

 ~~~~
+:::common lisp
 (defvar page-url "http://dbpedia.org/data/Chernihiv.ntriples")
 (defvar *res* (nt:parse-nt (drakma:http-request page-url)))
 ;; *res* now contains a list of triples, let's query some predicates

WikiPage Home modified by Victor Anyakin

Victor Anyakin — Tue, 18 Dec 2012 12:23:16 -0000

--- v9
+++ v10
@@ -11,6 +11,17 @@
 Check also the [Semantic Web page](http://www.cliki.net/Semantic%20Web) on CLiki.

 [Project page on Sourceforge.](http://sourceforge.net/projects/cl-ntriples/)
+
+
+Installation
+============
+
+Either ASDF-INSTALL using the latest distribution in the [releases folder](https://sourceforge.net/projects/cl-ntriples/files/releases/). Or go the modern way:
+
+~~~~~~
+:::lisp
+(ql:quickload "cl-ntriples")
+~~~~~~

 Sample usage

WikiPage Home modified by Victor Anyakin

Victor Anyakin — Sun, 16 Dec 2012 10:07:48 -0000

--- v8
+++ v9
@@ -56,6 +56,8 @@
 * `PREDICATE? triples predicate &key lang data-type`
 filters out triples with matching predicates. Additional parameters (lang and data-type) can be used to limit returned triples to those with matching language and data type specifiers.

+* `LITERAL-STRING triple`
+returns the literal-string value of the given triple.

 Download
 ========

WikiPage Home modified by Victor Anyakin

Victor Anyakin — Fri, 14 Dec 2012 10:53:07 -0000

--- v7
+++ v8
@@ -11,9 +11,6 @@
 Check also the [Semantic Web page](http://www.cliki.net/Semantic%20Web) on CLiki.

 [Project page on Sourceforge.](http://sourceforge.net/projects/cl-ntriples/)
-
-[[download_button]]
-

 Sample usage
@@ -58,3 +55,9 @@

 * `PREDICATE? triples predicate &key lang data-type`
 filters out triples with matching predicates. Additional parameters (lang and data-type) can be used to limit returned triples to those with matching language and data type specifiers.
+
+
+Download
+========
+
+[[download_button]]

WikiPage Home modified by Victor Anyakin

Victor Anyakin — Fri, 14 Dec 2012 10:52:37 -0000

--- v6
+++ v7
@@ -13,6 +13,7 @@
 [Project page on Sourceforge.](http://sourceforge.net/projects/cl-ntriples/)

 [[download_button]]
+

 Sample usage

WikiPage Home modified by Victor Anyakin

Victor Anyakin — Fri, 14 Dec 2012 10:52:14 -0000

--- v5
+++ v6
@@ -12,6 +12,48 @@

 [Project page on Sourceforge.](http://sourceforge.net/projects/cl-ntriples/)

+[[download_button]]

-[[download_button]]
+Sample usage
+============
+
+CL-NTRIPLES was developed for a practical purpose of accessing the wealth of data accumulated by the DBPedia project. For example, let's query information about a Ukrainian city of Chernihiv (wiki, dbpedia):
+
+~~~~
+(defvar page-url "http://dbpedia.org/data/Chernihiv.ntriples")
+(defvar *res* (nt:parse-nt (drakma:http-request page-url)))
+;; *res* now contains a list of triples, let's query some predicates
+;; for brevity, predicates will defined as variables
+
+(defconstant +prop-area-total-km+ "http://dbpedia.org/property/areaTotalKm")
+(defconstant +rdf-label+ "http://www.w3.org/2000/01/rdf-schema#label")
+
+;; querying predicates is now reduced to a simple function call:
+;; nt:predicate? TRIPLES PREDICATE &key LANG DATA-TYPE
+
+;; what is the city area in km2?
+(nt:predicate? *res* +prop-area-total-km+)
+=> (("http://dbpedia.org/resource/Chernihiv"
+  "http://dbpedia.org/property/areaTotalKm"
+  ((:LITERAL-STRING . "79")
+   (:URIREF . "http://www.w3.org/2001/XMLSchema#int"))))
+
+;; how do Japanese call this city?
+(predicate? *res* +rdf-label+ :lang "ja")
+=> (("http://dbpedia.org/resource/Chernihiv"
+  "http://www.w3.org/2000/01/rdf-schema#label"
+  (:LITERAL-STRING "チェルニーヒウ" :LANG "ja")))
+~~~~
+
+
+Functions
+=========
+
+Package provides following functions:
+
+* `PARSE-NT src` 
+Parses and returns a list of triples
+
+* `PREDICATE? triples predicate &key lang data-type`
+filters out triples with matching predicates. Additional parameters (lang and data-type) can be used to limit returned triples to those with matching language and data type specifiers.

WikiPage Home modified by Victor Anyakin

Victor Anyakin — Thu, 13 Dec 2012 13:20:01 -0000

--- v4
+++ v5
@@ -10,5 +10,8 @@

 Check also the [Semantic Web page](http://www.cliki.net/Semantic%20Web) on CLiki.

+[Project page on Sourceforge.](http://sourceforge.net/projects/cl-ntriples/)
+
+

 [[download_button]]

WikiPage Home modified by Victor Anyakin

Victor Anyakin — Thu, 13 Dec 2012 12:20:19 -0000

--- v3
+++ v4
@@ -2,7 +2,7 @@

 Main entry function is `PARSE-NT` method that parses N-Triples from the given source. This method accepts a file pathname, an input stream, or a string.

-Returns a list of triples consisting of three elements: subject, predicate, object. Subjects can be either an `uriref` or a `nodeID`. Objects can be of three types: `uriref`, `nodeID' or a `literal`. Depending on the type of the object it is encoded into an association list.
+Returns a list of triples consisting of three elements: subject, predicate, object. Subjects can be either an `uriref` or a `nodeID`. Objects can be of three types: `uriref`, `nodeID` or a `literal`. Depending on the type of the object it is encoded into an association list.

 N-Triples data format standard definition is provided in the W3C documents:

WikiPage Home modified by Victor Anyakin

Victor Anyakin — Thu, 13 Dec 2012 12:19:27 -0000

--- v2
+++ v3
@@ -1,13 +1,14 @@
 **CL-NTRIPLES** provides a simple parser for the N-Triples data format as defined by the W3C for storing RDF/Semantic information. N-Triples is a line-based, plain text format for encoding an RDF graph.

-Main entry function is parse-nt method that parses N-Triples from the given source. This method accepts a file pathname, an input stream, or a string.
+Main entry function is `PARSE-NT` method that parses N-Triples from the given source. This method accepts a file pathname, an input stream, or a string.

-Returns a list of triples consisting of three elements: subject, predicate, object. Subjects can be either an `uriref' or a `nodeID'. Objects can be of three types: `uriref', `nodeID' or a `literal'. Depending on the type of the object it is encoded into an association list.
+Returns a list of triples consisting of three elements: subject, predicate, object. Subjects can be either an `uriref` or a `nodeID`. Objects can be of three types: `uriref`, `nodeID' or a `literal`. Depending on the type of the object it is encoded into an association list.

 N-Triples data format standard definition is provided in the W3C documents:

 * [RDF Testcases, N-Triples](http://www.w3.org/TR/rdf-testcases/#ntriples)

+Check also the [Semantic Web page](http://www.cliki.net/Semantic%20Web) on CLiki.

-[[project_admins]]
+
 [[download_button]]

WikiPage Home modified by Victor Anyakin

Victor Anyakin — Thu, 13 Dec 2012 12:16:02 -0000

--- v1
+++ v2
@@ -1,8 +1,13 @@
-Welcome to your wiki!
+**CL-NTRIPLES** provides a simple parser for the N-Triples data format as defined by the W3C for storing RDF/Semantic information. N-Triples is a line-based, plain text format for encoding an RDF graph.

-This is the default page, edit it as you see fit. To add a new page simply reference it within brackets, e.g.: [SamplePage].
+Main entry function is parse-nt method that parses N-Triples from the given source. This method accepts a file pathname, an input stream, or a string.

-The wiki uses [Markdown](/p/cl-ntriples/wiki/markdown_syntax/) syntax.
+Returns a list of triples consisting of three elements: subject, predicate, object. Subjects can be either an `uriref' or a `nodeID'. Objects can be of three types: `uriref', `nodeID' or a `literal'. Depending on the type of the object it is encoded into an association list.
+
+N-Triples data format standard definition is provided in the W3C documents:
+
+* [RDF Testcases, N-Triples](http://www.w3.org/TR/rdf-testcases/#ntriples)
+

 [[project_admins]]
 [[download_button]]