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n3 - npm Package Compare versions

Comparing version 0.0.4 to 0.0.5

166

lib/n3lexer.js

@@ -5,20 +5,20 @@ // **N3Lexer** tokenizes N3 documents.

// These token expressions were taken from the [context-free grammar in N3](http://www.w3.org/2000/10/swap/grammar/n3.n3).
_explicituri: /<([^>]*)>/g,
_string: /"[^"\\]*(?:\\.[^"\\]*)*"(?=[^"\\])/g,
_tripleQuotedString: /""("[^"\\]*(?:(?:\\.|"(?!""))[^"\\]*)*")""/g,
_langcode: /@([a-z]+(?:-[a-z0-9]+)*)(?=[^a-z0-9\-])/g,
_prefix: /([A-Z_a-z\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u02ff\u0370-\u037d\u037f-\u1fff\u200c-\u200d\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff\uf900-\ufdcf\ufdf0-\ufffd][\-0-9A-Z_a-z\u00b7\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u037d\u037f-\u1fff\u200c-\u200d\u203f-\u2040\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff\uf900-\ufdcf\ufdf0-\ufffd]*)?:(?=\s)/g,
_qname: /([A-Z_a-z\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u02ff\u0370-\u037d\u037f-\u1fff\u200c-\u200d\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff\uf900-\ufdcf\ufdf0-\ufffd][\-0-9A-Z_a-z\u00b7\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u037d\u037f-\u1fff\u200c-\u200d\u203f-\u2040\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff\uf900-\ufdcf\ufdf0-\ufffd]*)?:((?:[A-Z_a-z\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u02ff\u0370-\u037d\u037f-\u1fff\u200c-\u200d\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff\uf900-\ufdcf\ufdf0-\ufffd][\-0-9A-Z_a-z\u00b7\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u037d\u037f-\u1fff\u200c-\u200d\u203f-\u2040\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff\uf900-\ufdcf\ufdf0-\ufffd]*)?)(?=[\s\.;,])/g,
_number: /(?:(-)|\+)?(\d+\.\d*|\.\d+|\d+)([eE](?:[\-\+])?\d+)?(?=\s*[,\.])/g,
_boolean: /(?:true|false)(?=\s+)/g,
_explicituri: /^<([^>]*)>/,
_string: /^"[^"\\]*(?:\\.[^"\\]*)*"(?=[^"\\])/,
_tripleQuotedString: /^""("[^"\\]*(?:(?:\\.|"(?!""))[^"\\]*)*")""/,
_langcode: /^@([a-z]+(?:-[a-z0-9]+)*)(?=[^a-z0-9\-])/,
_prefix: /^([A-Z_a-z\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u02ff\u0370-\u037d\u037f-\u1fff\u200c-\u200d\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff\uf900-\ufdcf\ufdf0-\ufffd][\-0-9A-Z_a-z\u00b7\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u037d\u037f-\u1fff\u200c-\u200d\u203f-\u2040\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff\uf900-\ufdcf\ufdf0-\ufffd]*)?:(?=\s)/,
_qname: /^([A-Z_a-z\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u02ff\u0370-\u037d\u037f-\u1fff\u200c-\u200d\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff\uf900-\ufdcf\ufdf0-\ufffd][\-0-9A-Z_a-z\u00b7\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u037d\u037f-\u1fff\u200c-\u200d\u203f-\u2040\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff\uf900-\ufdcf\ufdf0-\ufffd]*)?:((?:[A-Z_a-z\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u02ff\u0370-\u037d\u037f-\u1fff\u200c-\u200d\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff\uf900-\ufdcf\ufdf0-\ufffd][\-0-9A-Z_a-z\u00b7\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u037d\u037f-\u1fff\u200c-\u200d\u203f-\u2040\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff\uf900-\ufdcf\ufdf0-\ufffd]*)?)(?=[\s\.;,])/,
_number: /^(?:(-)|\+)?(\d+\.\d*|\.\d+|\d+)([eE](?:[\-\+])?\d+)?(?=\s*[,\.])/,
_boolean: /^(?:true|false)(?=\s+)/,
// The lexer needs these other token expressions as well.
_punctuation: /\.(?!\d)|;|,|\[|\]|\(|\)/g, // If a digit follows a dot, it is a number, not punctuation.
_fastString: /"[^"\\]+"(?=[^"\\])/g,
_keyword: /@[a-z]+(?=\s)/g,
_type: /\^\^(?:<([^>]*)>|([A-Z_a-z\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u02ff\u0370-\u037d\u037f-\u1fff\u200c-\u200d\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff\uf900-\ufdcf\ufdf0-\ufffd][\-0-9A-Z_a-z\u00b7\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u037d\u037f-\u1fff\u200c-\u200d\u203f-\u2040\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff\uf900-\ufdcf\ufdf0-\ufffd]*)?:([A-Z_a-z\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u02ff\u0370-\u037d\u037f-\u1fff\u200c-\u200d\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff\uf900-\ufdcf\ufdf0-\ufffd][\-0-9A-Z_a-z\u00b7\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u037d\u037f-\u1fff\u200c-\u200d\u203f-\u2040\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff\uf900-\ufdcf\ufdf0-\ufffd]*)(?=[\s\.:,]))/g,
_shortPredicates: /a(?=\s+|<)/g,
_punctuation: /^\.(?!\d)|^;|^,|^\[|^\]|^\(|^\)/, // If a digit follows a dot, it is a number, not punctuation.
_fastString: /^"[^"\\]+"(?=[^"\\])/,
_keyword: /^@[a-z]+(?=\s)/,
_type: /^\^\^(?:<([^>]*)>|([A-Z_a-z\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u02ff\u0370-\u037d\u037f-\u1fff\u200c-\u200d\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff\uf900-\ufdcf\ufdf0-\ufffd][\-0-9A-Z_a-z\u00b7\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u037d\u037f-\u1fff\u200c-\u200d\u203f-\u2040\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff\uf900-\ufdcf\ufdf0-\ufffd]*)?:([A-Z_a-z\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u02ff\u0370-\u037d\u037f-\u1fff\u200c-\u200d\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff\uf900-\ufdcf\ufdf0-\ufffd][\-0-9A-Z_a-z\u00b7\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u037d\u037f-\u1fff\u200c-\u200d\u203f-\u2040\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff\uf900-\ufdcf\ufdf0-\ufffd]*)(?=[\s\.:,]))/,
_shortPredicates: /^a(?=\s+|<)/,
// Whitespace, newlines, and comments are actually not specified yet in the current N3 grammar.
_newline: /[ \t]*(?:#[^\n\r]*)?(?:\r\n|\n|\r)[ \t]*/g,
_whitespace: /[ \t]+|#[^\n\r]*/g,
_nonwhitespace: /\S*/g,
_newline: /^[ \t]*(?:#[^\n\r]*)?(?:\r\n|\n|\r)[ \t]*/,
_whitespace: /^[ \t]+|^#[^\n\r]*/,
_nonwhitespace: /^\S*/,
};

@@ -41,9 +41,9 @@

Constructor.prototype = N3Lexer.prototype;
// Initialize the new `N3Lexer`.
var n3Lexer = new Constructor();
// Create local instances of the regular expressions.
// Local copies of the patterns perform slightly better.
for (var name in patterns)
n3Lexer[name] = new CachedRegExp(patterns[name].source, 'g');
n3Lexer[name] = patterns[name];
// Return the new `N3Lexer`.

@@ -55,5 +55,5 @@ return n3Lexer;

constructor: N3Lexer,
// ## Private methods
// ### `_next` fires the callback with the next token.

@@ -65,15 +65,15 @@ // Returns a boolean indicating whether a token has been emitted.

return false;
// Count and skip newlines.
var match;
while (match = this._newline.execAtIndex(this._input, this._pos)) {
while (match = this._newline.exec(this._input)) {
this._line++;
this._pos = this._newline.lastIndex;
this._input = this._input.substr(match[0].length);
}
// Skip whitespace.
if (match = this._whitespace.execAtIndex(this._input, this._pos)) {
this._pos = this._whitespace.lastIndex;
if (match = this._whitespace.exec(this._input)) {
this._input = this._input.substr(match[0].length);
}
// Create token skeleton.

@@ -86,5 +86,5 @@ // We initialize all possible properties as strings, so the engine uses one runtime type for all tokens.

};
// Emit the EOF token if we're at the end and reading is complete.
if (this._pos >= this._input.length) {
if (!this._input.length) {
// If we're streaming, don't emit EOF yet.

@@ -102,3 +102,3 @@ if (!this._inputComplete)

// Try to find an `explicituri`.
if (match = this._explicituri.execAtIndex(this._input, this._pos)) {
if (match = this._explicituri.exec(this._input)) {
token.type = 'explicituri';

@@ -108,7 +108,7 @@ token.value = match[1];

// Try to find a dot.
else if (match = this._punctuation.execAtIndex(this._input, this._pos)) {
else if (match = this._punctuation.exec(this._input)) {
token.type = punctuationTypes[match[0]];
}
// Try to find a language code.
else if (this._prevTokenType === 'literal' && (match = this._langcode.execAtIndex(this._input, this._pos))) {
else if (this._prevTokenType === 'literal' && (match = this._langcode.exec(this._input))) {
token.type = 'langcode';

@@ -120,3 +120,3 @@ token.value = match[1];

// If streaming, make sure the input is long enough so we don't miss language codes or string types.
else if (match = this._fastString.execAtIndex(this._input, this._pos)) {
else if (match = this._fastString.exec(this._input)) {
token.type = 'literal';

@@ -126,3 +126,3 @@ token.value = match[0];

// Try to find any other string literal wrapped in a pair of quotes.
else if (match = this._string.execAtIndex(this._input, this._pos)) {
else if (match = this._string.exec(this._input)) {
token.type = 'literal';

@@ -132,3 +132,3 @@ token.value = this._unescapeString(match[0]);

// Try to find a string literal wrapped in a pair of triple quotes.
else if (match = this._tripleQuotedString.execAtIndex(this._input, this._pos)) {
else if (match = this._tripleQuotedString.exec(this._input)) {
token.type = 'literal';

@@ -140,3 +140,3 @@ // Count the newlines and advance line counter.

// Try to find a number.
else if (match = this._number.execAtIndex(this._input, this._pos)) {
else if (match = this._number.exec(this._input)) {
token.type = 'literal';

@@ -156,3 +156,3 @@ var value = (match[1] === '-' ? '-' + match[2] : match[2]);

// Try to match a boolean.
else if (match = this._boolean.execAtIndex(this._input, this._pos)) {
else if (match = this._boolean.exec(this._input)) {
token.type = 'literal';

@@ -162,3 +162,3 @@ token.value = '"' + match[0] + '"^^<http://www.w3.org/2001/XMLSchema#boolean>';

// Try to find a type.
else if (this._prevTokenType === 'literal' && (match = this._type.execAtIndex(this._input, this._pos))) {
else if (this._prevTokenType === 'literal' && (match = this._type.exec(this._input))) {
token.type = 'type';

@@ -174,7 +174,7 @@ if (!match[2]) {

// Try to find a keyword.
else if (match = this._keyword.execAtIndex(this._input, this._pos)) {
else if (match = this._keyword.exec(this._input)) {
token.type = match[0];
}
// Try to find a prefix.
else if (this._prevTokenType === '@prefix' && (match = this._prefix.execAtIndex(this._input, this._pos))) {
else if (this._prevTokenType === '@prefix' && (match = this._prefix.exec(this._input))) {
token.type = 'prefix';

@@ -184,3 +184,3 @@ token.value = match[1] || '';

// Try to find a qname.
else if (match = this._qname.execAtIndex(this._input, this._pos)) {
else if (match = this._qname.exec(this._input)) {
token.type = 'qname';

@@ -191,3 +191,3 @@ token.prefix = match[1] || '';

// Try to find an abbreviated predicate.
else if (match = this._shortPredicates.execAtIndex(this._input, this._pos)) {
else if (match = this._shortPredicates.exec(this._input)) {
token.type = 'abbreviation';

@@ -201,3 +201,2 @@ token.value = fullPredicates[match[0]];

if (this._inputComplete) {
this._nonwhitespace.lastIndex = this._pos;
match = this._nonwhitespace.exec(this._input);

@@ -209,9 +208,9 @@ delete this._input;

}
// Save the token type for the next iteration.
this._prevTokenType = token.type;
// Advance to next part to tokenize.
this._pos += match[0].length;
this._input = this._input.substr(match[0].length);
// Emit the parsed token.

@@ -221,3 +220,3 @@ callback(null, token);

},
// ### `unescapeString` replaces escape codes in N3 strings by the corresponding characters.

@@ -229,5 +228,5 @@ _unescapeString: function (string) {

},
// ## Public methods
// ### `tokenize` starts the transformation of an N3 document into an array of tokens.

@@ -237,5 +236,4 @@ // The input can be a string or a stream.

var self = this;
this._pos = 0;
this._line = 1;
// If the input is a string, continuously emit tokens through callback until the end.

@@ -253,21 +251,11 @@ if (typeof(input) === 'string') {

this._inputComplete = false;
// Read strings, not buffers.
input.setEncoding('utf8');
// If new data arrives…
input.on('data', function (data) {
// …discard already parsed data and add the new data to the buffer.
if (self._pos === self._input.length)
self._input = data;
else
self._input = self._input.substr(self._pos) + data;
// Reset the position to the beginning of the new input buffer.
self._pos = 0;
// Clear the RegExp caches, as they were created with the old position.
for (var name in patterns)
self[name].clearMatchCache();
// Parse as far as we can.
// …add the new data to the buffer
self._input += data;
// …and parse as far as we can.
while (self._next(callback)) ;

@@ -286,42 +274,2 @@ });

// ## CachedRegExp
// `CachedRegExp` is a cached regular expression that allows exact position matching,
// providing an alternative to Mozilla's RegExp sticky flag.
function CachedRegExp(pattern, flags) {
var regExp = new RegExp(pattern, flags);
for (var name in CachedRegExp.prototype)
regExp[name] = CachedRegExp.prototype[name];
return regExp;
}
CachedRegExp.prototype = {
// ### `execAtIndex` executes a position-bound regular expression
// It executes the regular expression against `input`
// and returns a match only if it occurs at position `index`.
// If a match occurs at a higher position, this match is cached in `lastMatch`
// for reuse in subsequent calls; clearing this cache is possible with `clearMatchCache`.
execAtIndex: function (input, index) {
// If there is no cache, or if the position has advanced past the cached match…
if (!this.lastMatch || index > this.lastMatch.index) {
// …invalidate the match…
this.lastMatch = null;
// …and execute the regex at the specified position.
this.lastIndex = index;
this.lastMatch = this.exec(input);
// Return the match if it is successful and starts at the specified position.
if (this.lastMatch && this.lastMatch.index === index)
return this.lastMatch;
}
// Return the cached match if it starts at the specified position.
else if (this.lastMatch.index === index) {
return this.lastMatch;
}
},
// ### `clearMatchCache` removes a possibly cached match.
clearMatchCache: function () {
this.lastMatch = null;
}
};
// ## Exports

@@ -328,0 +276,0 @@

44

lib/n3parser.js

@@ -19,7 +19,7 @@ // **N3Parser** parses N3 documents.

config = config || {};
// We use a dummy constructor to enable construction without `new`.
function Constructor() {}
Constructor.prototype = N3Parser.prototype;
// Initialize the new `N3Parser`.

@@ -39,3 +39,3 @@ var n3Parser = new Constructor();

}
// Return the new `N3Parser`.

@@ -47,5 +47,5 @@ return n3Parser;

constructor: N3Parser,
// ## Private methods
// ### `_readInTopContext` reads a token when in the top context.

@@ -68,3 +68,3 @@ _readInTopContext: function (token) {

},
// ### `_readSubject` reads a triple's subject.

@@ -107,3 +107,3 @@ _readSubject: function (token) {

},
// ### `_readPredicate` reads a triple's predicate.

@@ -140,3 +140,3 @@ _readPredicate: function (token) {

},
// ### `_readObject` reads a triple's object.

@@ -195,3 +195,3 @@ _readObject: function (token) {

return this._readPunctuation(token);
// Store blank node triple.

@@ -203,3 +203,3 @@ if (empty !== true)

context: 'n3/contexts#default' });
// Restore parent triple that contains the blank node.

@@ -233,3 +233,3 @@ var triple = this._tripleStack.pop();

}
this._object += '^^' + value;
this._object += '^^<' + value + '>';
return this._readPunctuation;

@@ -252,3 +252,3 @@ case 'langcode':

next = this._readListItem; // The next function to execute.
switch (token.type) {

@@ -353,3 +353,3 @@ case 'explicituri':

},
// ### `_readPunctuation` reads punctuation between triples or triple parts.

@@ -381,3 +381,3 @@ _readPunctuation: function (token) {

},
// ### `_readPrefix` reads the prefix of a prefix declaration.

@@ -390,3 +390,3 @@ _readPrefix: function (token) {

},
// ### `_readPrefixURI` reads the URI of a prefix declaration.

@@ -404,3 +404,3 @@ _readPrefixURI: function (token) {

},
// ### `_readBaseURI` reads the URI of a base declaration.

@@ -417,3 +417,3 @@ _readBaseURI: function (token) {

},
// ### `_readDeclarationPunctuation` reads the punctiation of a declaration.

@@ -425,3 +425,3 @@ _readDeclarationPunctuation: function (token) {

},
// ### `_getNextReader` gets the next reader function at the end of a triple.

@@ -432,3 +432,3 @@ _getNextReader: function () {

return this._readPunctuation;
switch (stack[stack.length - 1].type) {

@@ -441,3 +441,3 @@ case 'blank':

},
// ### `_error` emits an error message through the callback.

@@ -447,5 +447,5 @@ _error: function (message, token) {

},
// ## Public methods
// ### `parse` parses the N3 input and emits each parsed triple through the callback.

@@ -452,0 +452,0 @@ parse: function (input, callback) {

54

lib/n3store.js
// **N3Store** objects store N3 triples with an associated context in memory.
// ## Constructor
function N3Store() {
function N3Store(triples) {
// We use a dummy constructor to enable construction without `new`.
function Constructor() {}
Constructor.prototype = N3Store.prototype;
// Initialize the new `N3Store`.

@@ -21,3 +21,7 @@ var n3Store = new Constructor();

n3Store._blankNodeIndex = 0;
// Add triples if passed
if (triples)
n3Store.addTriples(triples);
// Return the new `N3Store`.

@@ -29,5 +33,5 @@ return n3Store;

constructor: N3Store,
// ## Public properties
// `defaultContext` is the default context wherein triples are stored.

@@ -37,3 +41,3 @@ get defaultContext() {

},
// ### `size` returns the number of triples in the store.

@@ -45,3 +49,3 @@ get size() {

return size;
// Calculate the number of triples by counting to the deepest level.

@@ -95,3 +99,3 @@ var contexts = this._contexts, subjects, subject;

key2 in index2 ? (index2 = {})[key2] = tmp[key2] : index2 = {};
// Create triples for all items found in index 2.

@@ -109,5 +113,5 @@ results.push.apply(results, Object.keys(index2).map(function (value2) {

},
// ## Public methods
// ### `add` adds a new N3 triple to the store.

@@ -129,3 +133,3 @@ add: function (subject, predicate, object, context) {

}
// Since entities can often be long URIs, we avoid storing them in every index.

@@ -135,3 +139,3 @@ // Instead, we have a separate index that maps entities to numbers,

var entities = this._entities;
subject = entities[subject] || (entities[subject] = ++this._entityCount);

@@ -144,10 +148,22 @@ predicate = entities[predicate] || (entities[predicate] = ++this._entityCount);

this._addToIndex(contextItem.objects, object, subject, predicate);
// The cached triple count is now invalid.
this._size = null;
// Enable method chaining.
return this;
},
// ### `addTriple` as a triple to the store.
addTriple: function (triple) {
return this.add(triple.subject, triple.predicate, triple.object, triple.context);
},
// ### `addTriples` adds multiple N3 triples to the store.
addTriples: function (triples) {
for (var i = triples.length - 1; i >= 0; i--)
this.addTriple(triples[i]);
return this;
},
// ### `find` finds a set of triples matching a pattern.

@@ -160,3 +176,3 @@ // Setting `subject`, `predicate`, or `object` to `null` means an _anything_ wildcard.

entities = this._entities;
// Translate URIs to internal index keys.

@@ -167,7 +183,7 @@ // Optimization: if the entity doesn't exist, no triples with it exist.

if (object && !(object = entities[object])) return [];
// If the specified context contain no triples, there are no results.
if (!contextItem)
return [];
// Choose the optimal index, based on what fields are present

@@ -195,3 +211,3 @@ if (subject) {

},
// ### `createBlankNode` creates a new blank node, returning its name.

@@ -198,0 +214,0 @@ createBlankNode: function (suggestedName) {

9

package.json
{
"name": "n3",
"version": "0.0.4",
"version": "0.0.5",
"description": "Notation3 (N3) and RDF library.",

@@ -13,3 +13,4 @@ "author": "Ruben Verborgh <ruben.verborgh@gmail.com>",

"vows": "~0.6.0",
"should": "~0.5.1",
"chai": "~1.4.2",
"chai-things": "~0.1.1",
"docco": "~0.3.0",

@@ -25,7 +26,7 @@ "request": "~2.9.203",

"type": "git",
"url": "http://github.com/RubenVerborgh/node-n3.git"
"url": "https://github.com/RubenVerborgh/node-n3.git"
},
"bugs": {
"url": "http://github.com/RubenVerborgh/node-n3/issues"
"url": "https://github.com/RubenVerborgh/node-n3/issues"
}
}

4

README.md
# Node-n3 is a Notation3 and RDF library for node.js.
[**Notation3 or N3**](http://www.w3.org/TeamSubmission/n3/) is a superset of [RDF](http://www.w3.org/TR/rdf-primer/), the [Semantic Web](http://www.w3.org/2001/sw/) language.
[**Notation3 or N3**](http://www.w3.org/TeamSubmission/n3/) is a superset of [RDF](http://www.w3.org/TR/rdf-primer/), the [Semantic Web](http://www.w3.org/2001/sw/) language.
This library will provide a high-performance N3 store, parser, and generator (when finished).

@@ -23,3 +23,3 @@

In this example below, we create a new store and add the triples `:Pluto a :Dog.` and `:Mickey a :Mouse`.
In this example below, we create a new store and add the triples `:Pluto a :Dog.` and `:Mickey a :Mouse`.
Then, we find a triple with `:Mickey` as subject.

@@ -26,0 +26,0 @@

91

test/n3lexer-test.js
var N3Lexer = require('../lib/n3lexer.js');
var vows = require('vows'),
should = require('should'),
chai = require('chai'),
expect = chai.expect,
events = require('events');
chai.should();
chai.use(require('chai-things'));

@@ -9,7 +12,7 @@ vows.describe('N3Lexer').addBatch({

topic: function () { return N3Lexer; },
'should be a function': function (N3Lexer) {
N3Lexer.should.be.a('function');
},
'should make N3Lexer objects': function (N3Lexer) {

@@ -19,3 +22,3 @@ N3Lexer().constructor.should.eql(N3Lexer);

},
'should be an N3Lexer constructor': function (N3Lexer) {

@@ -26,3 +29,3 @@ new N3Lexer().constructor.should.eql(N3Lexer);

},
'An N3Lexer instance': {

@@ -32,7 +35,7 @@ 'should tokenize the empty string':

{ type: 'eof', line: 1 }),
'should tokenize a whitespace string':
shouldTokenize(' \t \n ',
{ type: 'eof', line: 2 }),
'should tokenize an explicituri':

@@ -42,3 +45,3 @@ shouldTokenize('<http://ex.org/?bla#foo>',

{ type: 'eof', line: 1 }),
'should tokenize two explicituris separated by whitespace':

@@ -49,3 +52,3 @@ shouldTokenize(' \n\t<http://ex.org/?bla#foo> \n\t<http://ex.org/?bla#bar> \n\t',

{ type: 'eof', line: 4 }),
'should tokenize a statement with explicituris':

@@ -58,3 +61,3 @@ shouldTokenize(' \n\t<http://ex.org/?bla#foo> \n\t<http://ex.org/?bla#bar> \n\t<http://ex.org/?bla#boo> .',

{ type: 'eof', line: 4 }),
'should correctly recognize different types of newlines':

@@ -67,3 +70,3 @@ shouldTokenize('<a>\r<b>\n<c>\r\n.',

{ type: 'eof', line: 4 }),
'should ignore comments':

@@ -75,3 +78,3 @@ shouldTokenize('<#foo> #comment\n <#foo> #comment \r# comment\n\n<#bla>#',

{ type: 'eof', line: 5 }),
'should tokenize a quoted string literal':

@@ -81,3 +84,3 @@ shouldTokenize('"string" ',

{ type: 'eof', line: 1 }),
'should tokenize a triple quoted string literal':

@@ -87,3 +90,3 @@ shouldTokenize('"""string"""',

{ type: 'eof', line: 1 }),
'should tokenize a triple quoted string literal with quotes newlines inside':

@@ -93,3 +96,3 @@ shouldTokenize('"""st"r\ni""ng"""',

{ type: 'eof', line: 2 }),
'should tokenize a string with escape characters':

@@ -100,3 +103,3 @@ shouldTokenize('"\\\\ \\\' \\" \\n \\r \\t \\ua1b2" \n """\\\\ \\\' \\" \\n \\r \\t \\ua1b2"""',

{ type: 'eof', line: 2 }),
'should tokenize a quoted string literal with language code':

@@ -109,3 +112,3 @@ shouldTokenize('"string"@en "string"@nl-be ',

{ type: 'eof', line: 1 }),
'should tokenize a quoted string literal with type':

@@ -118,3 +121,3 @@ shouldTokenize('"string"^^<type> "string"^^ns:mytype ',

{ type: 'eof', line: 1 }),
'should tokenize an integer literal':

@@ -131,3 +134,3 @@ shouldTokenize('10, +20. -30, 40. ',

{ type: 'eof', line: 1 }),
'should tokenize a decimal literal':

@@ -146,3 +149,3 @@ shouldTokenize('1.. 2.0, .3. -0.4, -.5. ',

{ type: 'eof', line: 1 }),
'should tokenize a double literal':

@@ -157,3 +160,3 @@ shouldTokenize('10e20, +30.40E+50. -60.70e-80. ',

{ type: 'eof', line: 1 }),
'should tokenize booleans':

@@ -164,3 +167,3 @@ shouldTokenize('true false ',

{ type: 'eof', line: 1 }),
'should tokenize statements with shared subjects':

@@ -176,3 +179,3 @@ shouldTokenize('<a> <b> <c>;\n<d> <e>.',

{ type: 'eof', line: 2 }),
'should tokenize statements with shared subjects and predicates':

@@ -187,3 +190,3 @@ shouldTokenize('<a> <b> <c>,\n<d>.',

{ type: 'eof', line: 2 }),
'should tokenize statements with shared subjects and predicates and qnames':

@@ -201,3 +204,3 @@ shouldTokenize('a:a b:b c:c;d:d e:e,f:f.',

{ type: 'eof', line: 1 }),
'should tokenize the colon qname':

@@ -210,3 +213,3 @@ shouldTokenize(': : :.',

{ type: 'eof', line: 1 }),
'should tokenize a stream':

@@ -230,3 +233,3 @@ shouldTokenize(streamOf('<a>\n<b', '> ', '"""', 'c\n', '"""', '.',

{ type: 'eof', line: 3 }),
'should tokenize prefix declarations':

@@ -243,3 +246,3 @@ shouldTokenize('@prefix : <http://uri.org/#>.\n@prefix abc: <http://uri.org/#>.',

{ type: 'eof', line: 2 }),
'should tokenize qnames':

@@ -252,3 +255,3 @@ shouldTokenize(':a b:c d-dd:e-ee.',

{ type: 'eof', line: 1 }),
'should tokenize blank nodes':

@@ -263,3 +266,3 @@ shouldTokenize('[] [<a> <b>]',

{ type: 'eof', line: 1 }),
'should tokenize lists':

@@ -277,3 +280,3 @@ shouldTokenize('() (<a>) (<a> <b>)',

{ type: 'eof', line: 1 }),
'should tokenize the "a" predicate':

@@ -286,3 +289,3 @@ shouldTokenize('<x> a <y>.',

{ type: 'eof', line: 1 }),
'should not tokenize an invalid document':

@@ -297,6 +300,6 @@ shouldNotTokenize(' \n @!', 'Syntax error: unexpected "@!" on line 2.')

expected = Array.prototype.slice.call(arguments, 1);
function tokenCallback(error, token) {
should.not.exist(error);
should.exist(token);
expect(error).not.to.exist;
expect(token).to.exist;
var expectedItem = expected[result.length];

@@ -311,3 +314,3 @@ if (expectedItem)

}
return {

@@ -318,3 +321,3 @@ topic: function () {

},
'should equal the expected value': function (result) {

@@ -328,3 +331,3 @@ result.should.eql(expected);

var endCallback;
function tokenCallback(error, token) {

@@ -336,3 +339,3 @@ if (error)

}
return {

@@ -343,5 +346,5 @@ topic: function () {

},
'should equal the expected message': function (error, token) {
should.not.exist(token);
expect(token).not.to.exist;
error.should.eql(expectedError);

@@ -355,3 +358,3 @@ }

stream = new events.EventEmitter();
stream.setEncoding = function (encoding) {

@@ -361,3 +364,3 @@ if (encoding === 'utf8')

};
function next() {

@@ -372,4 +375,4 @@ if (elements.length) {

}
return stream;
}

133

test/n3parser-test.js
var N3Parser = require('../lib/n3parser.js');
var vows = require('vows'),
should = require('should'),
eql = require('../node_modules/should/lib/eql.js'),
chai = require('chai'),
expect = chai.expect,
util = require('util');
chai.should();
chai.use(require('chai-things'));

@@ -10,7 +12,7 @@ vows.describe('N3Parser').addBatch({

topic: function () { return N3Parser; },
'should be a function': function (N3Parser) {
N3Parser.should.be.a('function');
},
'should make N3Parser objects': function (N3Parser) {

@@ -20,3 +22,3 @@ N3Parser().constructor.should.eql(N3Parser);

},
'should be an N3Parser constructor': function (N3Parser) {

@@ -27,18 +29,18 @@ new N3Parser().constructor.should.eql(N3Parser);

},
'An N3Parser instance': {
topic: function () { return function () { return new N3Parser(); }; },
'should parse the empty string':
shouldParse(''
/* no triples */),
'should parse a whitespace string':
shouldParse(' \t \n '
/* no triples */),
'should parse a single triple':
shouldParse('<a> <b> <c>.',
['a', 'b', 'c']),
'should parse three triples':

@@ -49,27 +51,27 @@ shouldParse('<a> <b> <c>.\n<d> <e> <f>.\n<g> <h> <i>.',

['g', 'h', 'i']),
'should parse a triple with a literal':
shouldParse('<a> <b> "string".',
['a', 'b', '"string"']),
'should parse a triple with a numeric literal':
shouldParse('<a> <b> 3.0.',
['a', 'b', '"3.0"^^<http://www.w3.org/2001/XMLSchema#decimal>']),
'should parse a triple with a literal and a language code':
shouldParse('<a> <b> "string"@en.',
['a', 'b', '"string"@en']),
'should parse a triple with a literal and a URI type':
shouldParse('<a> <b> "string"^^<type>.',
['a', 'b', '"string"^^type']),
['a', 'b', '"string"^^<type>']),
'should parse a triple with a literal and a qname type':
shouldParse('@prefix x: <y#>. <a> <b> "string"^^x:z.',
['a', 'b', '"string"^^y#z']),
['a', 'b', '"string"^^<y#z>']),
'should not parse a triple with a literal and a qname type with an inexistent prefix':
shouldNotParse('<a> <b> "string"^^x:z.',
'Undefined prefix "x:" at line 1.'),
'should parse triples with prefixes':

@@ -80,3 +82,3 @@ shouldParse('@prefix : <#>.\n' +

['#x', 'a#a', 'a#b']),
'should parse triples with prefixes and different punctuation':

@@ -89,15 +91,15 @@ shouldParse('@prefix : <#>.\n' +

['#x', 'a#c', 'a#e']),
'should not parse undefined prefix in subject':
shouldNotParse('a:a ',
'Undefined prefix "a:" at line 1.'),
'should not parse undefined prefix in predicate':
shouldNotParse('<a> b:c ',
'Undefined prefix "b:" at line 1.'),
'should not parse undefined prefix in object':
shouldNotParse('<a> <b> c:d ',
'Undefined prefix "c:" at line 1.'),
'should parse statements with shared subjects':

@@ -107,3 +109,3 @@ shouldParse('<a> <b> <c>;\n<d> <e>.',

['a', 'd', 'e']),
'should parse statements with shared subjects and predicates':

@@ -113,11 +115,11 @@ shouldParse('<a> <b> <c>, <d>.',

['a', 'b', 'd']),
'should parse statements with named blank nodes':
shouldParse('_:a _:b _:c.',
['_:b0', '_:b1', '_:b2']),
'should parse statements with empty blank nodes':
shouldParse('[] _:b [].',
['_:b0', '_:b1', '_:b2']),
'should parse statements with unnamed blank nodes in the subject':

@@ -127,3 +129,3 @@ shouldParse('[<a> <b>] <c> <d>.',

['_:b0', 'a', 'b']),
'should parse statements with unnamed blank nodes in the object':

@@ -133,3 +135,3 @@ shouldParse('<a> <b> [<c> <d>].',

['_:b0', 'c', 'd']),
'should parse statements with unnamed blank nodes with a string object':

@@ -139,7 +141,7 @@ shouldParse('<a> <b> [<c> "x"].',

['_:b0', 'c', '"x"']),
'should not parse a blank node with missing subject':
shouldNotParse('<a> <b> [<c>].',
'Expected object to follow "c" at line 1.'),
'should parse a multi-statement blank node':

@@ -150,3 +152,3 @@ shouldParse('<a> <b> [ <u> <v>; <w> <z> ].',

['_:b0', 'w', 'z']),
'should parse a multi-statement blank node with trailing semicolon':

@@ -157,3 +159,3 @@ shouldParse('<a> <b> [ <u> <v>; <w> <z>; ].',

['_:b0', 'w', 'z']),
'should parse statements with nested blank nodes in the subject':

@@ -164,3 +166,3 @@ shouldParse('[<a> [<x> <y>]] <c> <d>.',

['_:b1', 'x', 'y']),
'should parse statements with nested blank nodes in the object':

@@ -171,11 +173,11 @@ shouldParse('<a> <b> [<c> [<d> <e>]].',

['_:b1', 'd', 'e']),
'should parse statements with an empty list in the subject':
shouldParse('() <a> <b>.',
['http://www.w3.org/1999/02/22-rdf-syntax-ns#nil', 'a', 'b']),
'should parse statements with an empty list in the object':
shouldParse('<a> <b> ().',
['a', 'b', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#nil']),
'should parse statements with a single-element list in the subject':

@@ -187,3 +189,3 @@ shouldParse('(<x>) <a> <b>.',

'http://www.w3.org/1999/02/22-rdf-syntax-ns#nil']),
'should parse statements with a single-element list in the object':

@@ -195,3 +197,3 @@ shouldParse('<a> <b> (<x>).',

'http://www.w3.org/1999/02/22-rdf-syntax-ns#nil']),
'should parse statements with a multi-element list in the subject':

@@ -205,3 +207,3 @@ shouldParse('(<x> <y>) <a> <b>.',

'http://www.w3.org/1999/02/22-rdf-syntax-ns#nil']),
'should parse statements with a multi-element list in the object':

@@ -215,3 +217,3 @@ shouldParse('<a> <b> (<x> <y>).',

'http://www.w3.org/1999/02/22-rdf-syntax-ns#nil']),
'should parse statements with a list containing strings':

@@ -223,3 +225,3 @@ shouldParse('("y") <a> <b>.',

'http://www.w3.org/1999/02/22-rdf-syntax-ns#nil']),
'should parse statements with a nested empty list':

@@ -234,3 +236,3 @@ shouldParse('<a> <b> (<x> ()).',

'http://www.w3.org/1999/02/22-rdf-syntax-ns#nil']),
'should parse statements with non-empty nested lists':

@@ -247,3 +249,3 @@ shouldParse('<a> <b> (<x> (<y>)).',

'http://www.w3.org/1999/02/22-rdf-syntax-ns#nil']),
'should parse statements with a list containing a blank node':

@@ -255,3 +257,3 @@ shouldParse('([]) <a> <b>.',

'http://www.w3.org/1999/02/22-rdf-syntax-ns#nil']),
'should parse statements with a list containing multiple blank nodes':

@@ -266,3 +268,3 @@ shouldParse('([] [<x> <y>]) <a> <b>.',

['_:b3', 'x', 'y']),
'should parse statements with a blank node containing a list':

@@ -275,3 +277,3 @@ shouldParse('[<a> (<b>)] <c> <d>.',

'http://www.w3.org/1999/02/22-rdf-syntax-ns#nil']),
'should resolve the colon prefix against the hash URI':

@@ -283,3 +285,3 @@ shouldParse('@base <base/>.\n' +

['#x', '#y', '#z']),
'should resolve URIs against @base':

@@ -292,15 +294,15 @@ shouldParse('@base <http://ex.org/>.\n' +

['http://ex.org/d/e', 'http://ex.org/d/f', 'http://ex.org/d/g']),
'should not parse improperly nested square brackets':
shouldNotParse('<a> <b> [<c> <d>]].',
'Expected punctuation to follow "_:b0" at line 1.'),
'should error when a predicate is not there':
shouldNotParse('<a>.',
'Expected predicate to follow "a" at line 1.'),
'should error when an object is not there':
shouldNotParse('<a> <b>.',
'Expected object to follow "b" at line 1.'),
'should error when a dot is not there':

@@ -312,3 +314,3 @@ shouldNotParse('<a> <b> <c>',

topic: function () { return function () { return new N3Parser({ documentURI: 'doc/file.ttl' }); }; },
'should resolve URIs against the document URI':

@@ -320,3 +322,3 @@ shouldParse('@prefix : <#>.\n' +

['doc/file.ttl#e', 'doc/file.ttl#f', 'doc/file.ttl#g']),
'should respect @base statements':

@@ -331,3 +333,3 @@ shouldParse('<a> <b> <c>.\n' +

['http://ex.org/d/h', 'http://ex.org/d/i', 'http://ex.org/d/j']),
'should resolve the colon prefix against the document URI':

@@ -350,5 +352,5 @@ shouldParse('@base <base/>.\n' +

});
function tripleCallback(error, triple) {
should.not.exist(error);
expect(error).not.to.exist;
if (triple)

@@ -359,3 +361,3 @@ result.push(triple);

}
return {

@@ -366,8 +368,7 @@ topic: function (n3parserFactory) {

},
'should equal the expected value': function (result) {
result.should.have.lengthOf(expected.length);
for (var i = 0; i < items.length; i++)
should(result.some(function (x) { return eql(items[i], x); }),
util.inspect(result) + ' should contain ' + util.inspect(items[i]));
result.should.contain.something.that.deep.equals(items[i]);
}

@@ -379,3 +380,3 @@ };

var endCallback;
function tripleCallback(error, triple) {

@@ -387,3 +388,3 @@ if (error)

}
return {

@@ -394,5 +395,5 @@ topic: function (n3parserFactory) {

},
'should equal the expected message': function (error, triple) {
should.not.exist(triple);
expect(triple).not.to.exist;
error.should.eql(expectedError);

@@ -399,0 +400,0 @@ }

131

test/n3store-test.js
var N3Store = require('../lib/n3store.js');
var vows = require('vows'),
should = require('should'),
eql = require('../node_modules/should/lib/eql.js'),
chai = require('chai'),
util = require('util');
chai.should();
chai.use(require('chai-things'));

@@ -10,7 +11,7 @@ vows.describe('N3Store').addBatch({

topic: function () { return N3Store; },
'should be a function': function (N3Store) {
N3Store.should.be.a('function');
},
'should make N3Store objects': function (N3Store) {

@@ -20,3 +21,3 @@ N3Store().constructor.should.eql(N3Store);

},
'should be an N3Store constructor': function (N3Store) {

@@ -27,18 +28,18 @@ new N3Store().constructor.should.eql(N3Store);

},
'An empty N3Store': {
topic: new N3Store(),
'should have size 0': function (n3Store) {
n3Store.size.should.eql(0);
},
'should be empty': function (n3Store) {
n3Store.find().should.be.empty;
},
'should have a default context': function (n3Store) {
n3Store.defaultContext.should.eql('n3/contexts#default');
},
'should be able to create unnamed blank nodes': function (n3Store) {

@@ -51,3 +52,3 @@ n3Store.createBlankNode().should.eql('_:b0');

},
'should be able to create named blank nodes': function (n3Store) {

@@ -59,3 +60,18 @@ n3Store.createBlankNode('blank').should.eql('_:blank');

},
'An N3Store with initialized with 3 elements': {
topic: function () {
var n3Store = new N3Store([
{ subject: 's1', predicate: 'p1', object: 'o1'},
{ subject: 's1', predicate: 'p1', object: 'o2'},
{ subject: 's1', predicate: 'p1', object: 'o3'},
]);
return n3Store;
},
'should have size 3': function (n3Store) {
n3Store.size.should.eql(3);
},
},
'An N3Store with 5 elements': {

@@ -65,135 +81,137 @@ topic: function () {

n3Store.add('s1', 'p1', 'o1');
n3Store.add('s1', 'p1', 'o2');
n3Store.add('s1', 'p2', 'o2');
n3Store.add('s2', 'p1', 'o1');
n3Store.addTriple({ subject: 's1', predicate: 'p1', object: 'o2'});
n3Store.addTriples([
{ subject: 's1', predicate: 'p2', object: 'o2'},
{ subject: 's2', predicate: 'p1', object: 'o1'},
]);
n3Store.add('s1', 'p2', 'o3', 'c4');
return n3Store;
},
'should have size 5': function (n3Store) {
n3Store.size.should.eql(5);
},
'when searched without parameters': {
topic: function (n3Store) { return n3Store.find(); },
'should return all items in the default context':
shouldIncludeAll(['s1', 'p1', 'o1'], ['s1', 'p1', 'o2'], ['s1', 'p2', 'o2'], ['s2', 'p1', 'o1'])
},
'when searched with an existing subject parameter': {
topic: function (n3Store) { return n3Store.find('s1', null, null); },
'should return all items with this subject in the default context':
shouldIncludeAll(['s1', 'p1', 'o1'], ['s1', 'p1', 'o2'], ['s1', 'p2', 'o2'])
},
'when searched with a non-existing subject parameter': {
topic: function (n3Store) { return n3Store.find('s3', null, null); },
'should return no items': shouldBeEmpty()
},
'when searched with an existing predicate parameter': {
topic: function (n3Store) { return n3Store.find(null, 'p1', null); },
'should return all items with this predicate in the default context':
shouldIncludeAll(['s1', 'p1', 'o1'], ['s1', 'p1', 'o2'], ['s2', 'p1', 'o1'])
},
'when searched with a non-existing predicate parameter': {
topic: function (n3Store) { return n3Store.find(null, 'p3', null); },
'should return no items': shouldBeEmpty()
},
'when searched with an existing object parameter': {
topic: function (n3Store) { return n3Store.find(null, null, 'o1'); },
'should return all items with this object in the default context':
shouldIncludeAll(['s1', 'p1', 'o1'], ['s2', 'p1', 'o1'])
},
'when searched with a non-existing object parameter': {
topic: function (n3Store) { return n3Store.find(null, null, 'o4'); },
'should return no items': shouldBeEmpty()
},
'when searched with existing subject and predicate parameters': {
topic: function (n3Store) { return n3Store.find('s1', 'p1', null); },
'should return all items with this subject and predicate in the default context':
shouldIncludeAll(['s1', 'p1', 'o1'], ['s1', 'p1', 'o2'])
},
'when searched with non-existing subject and predicate parameters': {
topic: function (n3Store) { return n3Store.find('s2', 'p2', null); },
'should return no items': shouldBeEmpty()
},
'when searched with existing subject and object parameters': {
topic: function (n3Store) { return n3Store.find('s1', null, 'o2'); },
'should return all items with this subject and object in the default context':
shouldIncludeAll(['s1', 'p1', 'o2'], ['s1', 'p2', 'o2'])
},
'when searched with non-existing subject and object parameters': {
topic: function (n3Store) { return n3Store.find('s2', 'p2', null); },
'should return no items': shouldBeEmpty()
},
'when searched with existing predicate and object parameters': {
topic: function (n3Store) { return n3Store.find(null, 'p1', 'o1'); },
'should return all items with this predicate and object in the default context':
shouldIncludeAll(['s1', 'p1', 'o1'], ['s2', 'p1', 'o1'])
},
'when searched with non-existing predicate and object parameters': {
topic: function (n3Store) { return n3Store.find(null, 'p2', 'o3'); },
'should return no items': shouldBeEmpty()
},
'when searched with existing subject, predicate, and object parameters': {
topic: function (n3Store) { return n3Store.find('s1', 'p1', 'o1'); },
'should return all items with this subject, predicate, and object in the default context':
shouldIncludeAll(['s1', 'p1', 'o1'])
},
'when searched with non-existing subject, predicate, and object parameters': {
topic: function (n3Store) { return n3Store.find('s2', 'p2', 'o2'); },
'should return no items': shouldBeEmpty()
},
'when searched with the default context parameter': {
topic: function (n3Store) { return n3Store.find(); },
'should return all items in the default context':
shouldIncludeAll(['s1', 'p1', 'o1'], ['s1', 'p1', 'o2'], ['s1', 'p2', 'o2'], ['s2', 'p1', 'o1'])
},
'when searched with an existing non-default context parameter': {
topic: function (n3Store) { return n3Store.find(null, null, null, 'c4'); },
'should return all items in that context':
shouldIncludeAll(['s1', 'p2', 'o3', 'c4'])
},
'when searched with a non-existing non-default context parameter': {
topic: function (n3Store) { return n3Store.find(null, null, null, 'c5'); },
'should return no items': shouldBeEmpty()
},
},
'An N3Store': {
topic: new N3Store(),
// Test inspired by http://www.devthought.com/2012/01/18/an-object-is-not-a-hash/.

@@ -206,3 +224,3 @@ // The value `__proto__` is not supported however – fixing it introduces too much overhead.

},
'should be able to contain entities named "null"': function (n3Store) {

@@ -230,5 +248,4 @@ n3Store.add('null', 'null', 'null', 'null');

for (var i = 0; i < items.length; i++)
should(result.some(function (x) { return eql(items[i], x); }),
util.inspect(result) + ' should contain ' + util.inspect(items[i]));
result.should.include.something.that.deep.equals(items[i]);
};
}
Makefile

Sorry, the diff of this file is not supported yet

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