update examples

anusii · Nov 27, 2023 · 48566c2 · 48566c2
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diff --git a/example/example_1.dart b/example/example_1.dart
@@ -1,51 +1,50 @@
 import 'package:rdflib/rdflib.dart';
 
 main() {
-  // the following example is modified from <https://rdflib.readthedocs.io/en/stable/gettingstarted.html#a-more-extensive-example>
-
   // Initialize a Graph
   Graph g = Graph();
 
-  // Create a new URIRef instance for a person
-  final donna = URIRef('http://example.org/donna');
+  // Define namespaces for later use
+  Namespace shData = Namespace(ns: 'http://silo.net.au/data/SOLID-Health#');
+  Namespace shOnto =
+      Namespace(ns: 'http://sii.cecs.anu.edu.au/onto/SOLID-Health#');
+
+  // Create a subject
+  URIRef newAssessTab = shData.withAttr('AssessmentTab-p43623-20220727T120913');
 
-  // Add triples to the Graph using [Graph.addTriplesToGroups] method
-  g.addTripleToGroups(donna, RDF.type, FOAF.Person);
-  g.addTripleToGroups(donna, FOAF.nick, Literal('donna', lang: 'en'));
-  g.addTripleToGroups(donna, FOAF.name, Literal('Donna Fales'));
-  g.addTripleToGroups(donna, FOAF.mbox, URIRef('mailto:donna@example.org'));
-  // Adding a duplicate triple should be ignored
-  g.addTripleToGroups(donna, FOAF.mbox, URIRef('mailto:donna@example.org'));
+  // Add the entity to the Graph, equivalent to
+  // g.addTripleToGroups(newAssessTab, rdf.typ, owl:NamedIndividual)
+  g.addNamedIndividualToGroups(newAssessTab);
 
-  // Create another URIRef instance
-  final ed = URIRef('http://example.org/edward');
+  // Add using a Triple type
+  Triple t1 = Triple(
+      sub: newAssessTab, pre: RDF.type, obj: shOnto.withAttr('AssessmentTab'));
+  g.addTripleToGroups(t1.sub, t1.pre, t1.obj);
 
-  // Add triples to the Graph
-  g.addTripleToGroups(ed, RDF.type, FOAF.Person);
-  g.addTripleToGroups(ed, FOAF.nick, Literal('ed', datatype: XSD.string));
-  g.addTripleToGroups(ed, FOAF.name, Literal('Edward Scissorhands'));
+  // Add directly using sub, pre, and obj
+  g.addTripleToGroups(
+      newAssessTab, shData.withAttr('asthmaControl'), 'Poor Control');
+  g.addTripleToGroups(
+      newAssessTab, shOnto.withAttr('diastolicBloodPressure'), '75');
   g.addTripleToGroups(
-      ed, FOAF.mbox, Literal('mailto:ed@example.org', datatype: XSD.anyURI));
+      newAssessTab, shOnto.withAttr('systolicBloodPressure'), Literal('125.0'));
+
+  URIRef newSeeAndDoTab = shData.withAttr('SeeAndDoTab-p43623-20220727T120913');
+  URIRef newSeeAndDoOption =
+      shData.withAttr('SeeAndDoOption-p43623-20220727T120913-fitnessDrive');
+
+  g.addNamedIndividualToGroups(newSeeAndDoTab);
+  g.addNamedIndividualToGroups(newSeeAndDoOption);
+
+  // Link two triple individuals by a relation
+  g.addObjectProperty(
+      newSeeAndDoTab, shOnto.withAttr('hasSeeAndDoOption'), newSeeAndDoOption);
 
-  // Bind the long namespace to shorter string for better readability
-  g.bind('example', Namespace(ns: 'http://example.org/'));
+  // Bind to shorter abbreviations for readability
+  g.bind('sh-data', shData);
+  g.bind('sh-onto', shOnto);
 
-  // Serialize the Graph to the standard turtle format, and the result is stored
-  // in [Graph.serializedString]
+  // Serialize the graph for output
   g.serialize(format: 'ttl', abbr: 'short');
-  print('-------\nSerialized content:\n${g.serializedString}');
-
-  // Print out every added triple in the graph by iterating through the set
-  print('-------\nTriples updated in the graph:');
-  for (Triple t in g.triples) {
-    print(t);
-  }
-
-  // Print out each person's mailbox value
-  print('-------\nMailboxes:');
-  for (var sub in g.subjects(a, FOAF.Person)) {
-    for (var mbox in g.objects(sub, FOAF.mbox)) {
-      print('${sub}\'s mailbox: ${mbox.value}');
-    }
-  }
+  print(g.serializedString);
 }
diff --git a/example/example_2.dart b/example/example_2.dart
@@ -1,50 +1,26 @@
-import 'package:rdflib/rdflib.dart';
-
-main() {
-  // Initialize a Graph
-  Graph g = Graph();
-
-  // Define namespaces for later use
-  Namespace shData = Namespace(ns: 'http://silo.net.au/data/SOLID-Health#');
-  Namespace shOnto =
-      Namespace(ns: 'http://sii.cecs.anu.edu.au/onto/SOLID-Health#');
-
-  // Create a subject
-  URIRef newAssessTab = shData.withAttr('AssessmentTab-p43623-20220727T120913');
-
-  // Add the entity to the Graph, equivalent to
-  // g.addTripleToGroups(newAssessTab, rdf.typ, owl:NamedIndividual)
-  g.addNamedIndividualToGroups(newAssessTab);
+import 'dart:io';
 
-  // Add using a Triple type
-  Triple t1 = Triple(
-      sub: newAssessTab, pre: RDF.type, obj: shOnto.withAttr('AssessmentTab'));
-  g.addTripleToGroups(t1.sub, t1.pre, t1.obj);
-
-  // Add directly using sub, pre, and obj
-  g.addTripleToGroups(
-      newAssessTab, shData.withAttr('asthmaControl'), 'Poor Control');
-  g.addTripleToGroups(
-      newAssessTab, shOnto.withAttr('diastolicBloodPressure'), '75');
-  g.addTripleToGroups(
-      newAssessTab, shOnto.withAttr('systolicBloodPressure'), Literal('125.0'));
-
-  URIRef newSeeAndDoTab = shData.withAttr('SeeAndDoTab-p43623-20220727T120913');
-  URIRef newSeeAndDoOption =
-      shData.withAttr('SeeAndDoOption-p43623-20220727T120913-fitnessDrive');
+import 'package:rdflib/rdflib.dart';
 
-  g.addNamedIndividualToGroups(newSeeAndDoTab);
-  g.addNamedIndividualToGroups(newSeeAndDoOption);
+main() async {
+  String filePath = 'example/sample_ttl_1.ttl';
+  // Read file content to a local String
+  String fileContents = await File(filePath).readAsStringSync();
+  print('-------Original file-------\n$fileContents');
 
-  // Link two triple individuals by a relation
-  g.addObjectProperty(
-      newSeeAndDoTab, shOnto.withAttr('hasSeeAndDoOption'), newSeeAndDoOption);
+  // create a graph to read turtle file and store info
+  Graph g = Graph();
 
-  // Bind to shorter abbreviations for readability
-  g.bind('sh-data', shData);
-  g.bind('sh-onto', shOnto);
+  // Parse with the new method [Graph.parseTurtle] instead of [Graph.parse] (deprecated)
+  g.parseTurtle(fileContents);
 
-  // Serialize the graph for output
+  // Serialize the Graph for output
   g.serialize(format: 'ttl', abbr: 'short');
-  print(g.serializedString);
+  print('-------Serialized String--------\n${g.serializedString}');
+
+  // Print out full format of triples (will use shorthand in serialization/export)
+  print('--------All triples in the graph-------');
+  for (Triple t in g.triples) {
+    print(t);
+  }
 }
diff --git a/example/example_3.dart b/example/example_3.dart
@@ -1,26 +1,34 @@
-import 'dart:io';
+import 'package:http/http.dart' as http;
 
 import 'package:rdflib/rdflib.dart';
 
 main() async {
-  String filePath = 'example/sample_ttl_1.ttl';
-  // Read file content to a local String
-  String fileContents = await File(filePath).readAsStringSync();
-  print('-------Original file-------\n$fileContents');
+  // https://github.com/anusii/rdflib/blob/main/example/sample_acl_1.acl
+  // https://raw.githubusercontent.com/anusii/rdflib/main/example/sample_acl_1.acl
+  var url = Uri.https('raw.githubusercontent.com',
+      'anusii/rdflib/main/example/sample_acl_1.acl');
+  // Get the contents of the acl file
+  var res = await http.get(url);
+  String aclContents = res.body;
+  print('-------Original ACL Contents-------\n${res.body}\n');
 
-  // create a graph to read turtle file and store info
+  // Initialize a Graph to store all the info
   Graph g = Graph();
-
-  // Parse with the new method [Graph.parseTurtle] instead of [Graph.parse] (deprecated)
-  g.parseTurtle(fileContents);
-
-  // Serialize the Graph for output
+  // Parse the contents and update the triples
+  g.parseTurtle(aclContents);
   g.serialize(format: 'ttl', abbr: 'short');
-  print('-------Serialized String--------\n${g.serializedString}');
+  print('-------Serialized ACL Contents------\n${g.serializedString}\n');
 
-  // Print out full format of triples (will use shorthand in serialization/export)
-  print('--------All triples in the graph-------');
-  for (Triple t in g.triples) {
-    print(t);
-  }
+  // Add 'zack' to the ACL file
+  g.addTripleToGroups('<#zack>', a, 'acl:Authorization');
+  // Specify which document/fold
+  g.addTripleToGroups('<#zack>', 'acl:accessTo', '<./README>');
+  // Specify the target by its webID card
+  g.addTripleToGroups('<#zack>', 'acl:agent',
+      '<https://solid.dev.yarrabah.net/zack-collins/profile/card#me>');
+  // Grant him access to Read only
+  g.addTripleToGroups('<#zack>', 'acl:mode', 'acl:Read');
+  // Need to serialize before exporting
+  g.serialize(format: 'ttl', abbr: 'short');
+  print('-------Serialized ACL Contents (New)------\n${g.serializedString}\n');
 }
diff --git a/example/example_4.dart b/example/example_4.dart
@@ -1,34 +1,27 @@
-import 'package:http/http.dart' as http;
+import 'dart:io';
 
 import 'package:rdflib/rdflib.dart';
 
 main() async {
-  // https://github.com/anusii/rdflib/blob/main/example/sample_acl_1.acl
-  // https://raw.githubusercontent.com/anusii/rdflib/main/example/sample_acl_1.acl
-  var url = Uri.https('raw.githubusercontent.com',
-      'anusii/rdflib/main/example/sample_acl_1.acl');
-  // Get the contents of the acl file
-  var res = await http.get(url);
-  String aclContents = res.body;
-  print('-------Original ACL Contents-------\n${res.body}\n');
+  String filePath = 'example/sample_ttl_4.ttl';
+  // Read file content to a local String
+  String fileContents = await File(filePath).readAsStringSync();
 
-  // Initialize a Graph to store all the info
+  print('-------Original file-------\n$fileContents');
+
+  // create a graph to read turtle file and store info
   Graph g = Graph();
-  // Parse the contents and update the triples
-  g.parseTurtle(aclContents);
-  g.serialize(format: 'ttl', abbr: 'short');
-  print('-------Serialized ACL Contents------\n${g.serializedString}\n');
 
-  // Add 'zack' to the ACL file
-  g.addTripleToGroups('<#zack>', a, 'acl:Authorization');
-  // Specify which document/fold
-  g.addTripleToGroups('<#zack>', 'acl:accessTo', '<./README>');
-  // Specify the target by its webID card
-  g.addTripleToGroups('<#zack>', 'acl:agent',
-      '<https://solid.dev.yarrabah.net/zack-collins/profile/card#me>');
-  // Grant him access to Read only
-  g.addTripleToGroups('<#zack>', 'acl:mode', 'acl:Read');
-  // Need to serialize before exporting
+  // Parse with the new method [Graph.parseTurtle] instead of [Graph.parse] (deprecated)
+  g.parseTurtle(fileContents);
+
+  // Serialize the Graph for output
   g.serialize(format: 'ttl', abbr: 'short');
-  print('-------Serialized ACL Contents (New)------\n${g.serializedString}\n');
+  print('-------Serialized String--------\n${g.serializedString}');
+
+  // Print out full format of triples (will use shorthand in serialization/export)
+  print('--------All triples in the graph-------');
+  for (Triple t in g.triples) {
+    print(t);
+  }
 }
diff --git a/example/example_5.dart b/example/example_5.dart
diff --git a/example/main.dart b/example/main.dart
@@ -0,0 +1,51 @@
+import 'package:rdflib/rdflib.dart';
+
+main() {
+  // the following example is modified from <https://rdflib.readthedocs.io/en/stable/gettingstarted.html#a-more-extensive-example>
+
+  // Initialize a Graph
+  Graph g = Graph();
+
+  // Create a new URIRef instance for a person
+  final donna = URIRef('http://example.org/donna');
+
+  // Add triples to the Graph using [Graph.addTriplesToGroups] method
+  g.addTripleToGroups(donna, RDF.type, FOAF.Person);
+  g.addTripleToGroups(donna, FOAF.nick, Literal('donna', lang: 'en'));
+  g.addTripleToGroups(donna, FOAF.name, Literal('Donna Fales'));
+  g.addTripleToGroups(donna, FOAF.mbox, URIRef('mailto:donna@example.org'));
+  // Adding a duplicate triple should be ignored
+  g.addTripleToGroups(donna, FOAF.mbox, URIRef('mailto:donna@example.org'));
+
+  // Create another URIRef instance
+  final ed = URIRef('http://example.org/edward');
+
+  // Add triples to the Graph
+  g.addTripleToGroups(ed, RDF.type, FOAF.Person);
+  g.addTripleToGroups(ed, FOAF.nick, Literal('ed', datatype: XSD.string));
+  g.addTripleToGroups(ed, FOAF.name, Literal('Edward Scissorhands'));
+  g.addTripleToGroups(
+      ed, FOAF.mbox, Literal('mailto:ed@example.org', datatype: XSD.anyURI));
+
+  // Bind the long namespace to shorter string for better readability
+  g.bind('example', Namespace(ns: 'http://example.org/'));
+
+  // Serialize the Graph to the standard turtle format, and the result is stored
+  // in [Graph.serializedString]
+  g.serialize(format: 'ttl', abbr: 'short');
+  print('-------\nSerialized content:\n${g.serializedString}');
+
+  // Print out every added triple in the graph by iterating through the set
+  print('-------\nTriples updated in the graph:');
+  for (Triple t in g.triples) {
+    print(t);
+  }
+
+  // Print out each person's mailbox value
+  print('-------\nMailboxes:');
+  for (var sub in g.subjects(a, FOAF.Person)) {
+    for (var mbox in g.objects(sub, FOAF.mbox)) {
+      print('${sub}\'s mailbox: ${mbox.value}');
+    }
+  }
+}
diff --git a/example/sample_ttl_5.ttl → example/sample_ttl_4.ttl b/example/sample_ttl_5.ttl → example/sample_ttl_4.ttl