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-/*!
- Parser implied
- All the functions that deal with microformats implied rules
-
- Copyright (C) 2010 - 2015 Glenn Jones. All Rights Reserved.
- MIT License: https://raw.github.com/glennjones/microformat-shiv/master/license.txt
- Dependencies dates.js, domutils.js, html.js, isodate,js, text.js, utilities.js, url.js
-*/
-
-var Modules = (function (modules) {
-
- // check parser module is loaded
- if(modules.Parser){
-
- /**
- * applies "implied rules" microformat output structure i.e. feed-title, name, photo, url and date
- *
- * @param {DOM Node} node
- * @param {Object} uf (microformat output structure)
- * @param {Object} parentClasses (classes structure)
- * @param {Boolean} impliedPropertiesByVersion
- * @return {Object}
- */
- modules.Parser.prototype.impliedRules = function(node, uf, parentClasses) {
- var typeVersion = (uf.typeVersion)? uf.typeVersion: 'v2';
-
- // TEMP: override to allow v1 implied properties while spec changes
- if(this.options.impliedPropertiesByVersion === false){
- typeVersion = 'v2';
- }
-
- if(node && uf && uf.properties) {
- uf = this.impliedBackwardComp( node, uf, parentClasses );
- if(typeVersion === 'v2'){
- uf = this.impliedhFeedTitle( uf );
- uf = this.impliedName( node, uf );
- uf = this.impliedPhoto( node, uf );
- uf = this.impliedUrl( node, uf );
- }
- uf = this.impliedValue( node, uf, parentClasses );
- uf = this.impliedDate( uf );
-
- // TEMP: flagged while spec changes are put forward
- if(this.options.parseLatLonGeo === true){
- uf = this.impliedGeo( uf );
- }
- }
-
- return uf;
- };
-
-
- /**
- * apply implied name rule
- *
- * @param {DOM Node} node
- * @param {Object} uf
- * @return {Object}
- */
- modules.Parser.prototype.impliedName = function(node, uf) {
- // implied name rule
- /*
- img.h-x[alt] <img class="h-card" src="glenn.htm" alt="Glenn Jones"></a>
- area.h-x[alt] <area class="h-card" href="glenn.htm" alt="Glenn Jones"></area>
- abbr.h-x[title] <abbr class="h-card" title="Glenn Jones"GJ</abbr>
-
- .h-x>img:only-child[alt]:not[.h-*] <div class="h-card"><a src="glenn.htm" alt="Glenn Jones"></a></div>
- .h-x>area:only-child[alt]:not[.h-*] <div class="h-card"><area href="glenn.htm" alt="Glenn Jones"></area></div>
- .h-x>abbr:only-child[title] <div class="h-card"><abbr title="Glenn Jones">GJ</abbr></div>
-
- .h-x>:only-child>img:only-child[alt]:not[.h-*] <div class="h-card"><span><img src="jane.html" alt="Jane Doe"/></span></div>
- .h-x>:only-child>area:only-child[alt]:not[.h-*] <div class="h-card"><span><area href="jane.html" alt="Jane Doe"></area></span></div>
- .h-x>:only-child>abbr:only-child[title] <div class="h-card"><span><abbr title="Jane Doe">JD</abbr></span></div>
- */
- var name,
- value;
-
- if(!uf.properties.name) {
- value = this.getImpliedProperty(node, ['img', 'area', 'abbr'], this.getNameAttr);
- var textFormat = this.options.textFormat;
- // if no value for tags/properties use text
- if(!value) {
- name = [modules.text.parse(this.document, node, textFormat)];
- }else{
- name = [modules.text.parseText(this.document, value, textFormat)];
- }
- if(name && name[0] !== ''){
- uf.properties.name = name;
- }
- }
-
- return uf;
- };
-
-
- /**
- * apply implied photo rule
- *
- * @param {DOM Node} node
- * @param {Object} uf
- * @return {Object}
- */
- modules.Parser.prototype.impliedPhoto = function(node, uf) {
- // implied photo rule
- /*
- img.h-x[src] <img class="h-card" alt="Jane Doe" src="jane.jpeg"/>
- object.h-x[data] <object class="h-card" data="jane.jpeg"/>Jane Doe</object>
- .h-x>img[src]:only-of-type:not[.h-*] <div class="h-card"><img alt="Jane Doe" src="jane.jpeg"/></div>
- .h-x>object[data]:only-of-type:not[.h-*] <div class="h-card"><object data="jane.jpeg"/>Jane Doe</object></div>
- .h-x>:only-child>img[src]:only-of-type:not[.h-*] <div class="h-card"><span><img alt="Jane Doe" src="jane.jpeg"/></span></div>
- .h-x>:only-child>object[data]:only-of-type:not[.h-*] <div class="h-card"><span><object data="jane.jpeg"/>Jane Doe</object></span></div>
- */
- var value;
- if(!uf.properties.photo) {
- value = this.getImpliedProperty(node, ['img', 'object'], this.getPhotoAttr);
- if(value) {
- // relative to absolute URL
- if(value && value !== '' && this.options.baseUrl !== '' && value.indexOf('://') === -1) {
- value = modules.url.resolve(value, this.options.baseUrl);
- }
- uf.properties.photo = [modules.utils.trim(value)];
- }
- }
- return uf;
- };
-
-
- /**
- * apply implied URL rule
- *
- * @param {DOM Node} node
- * @param {Object} uf
- * @return {Object}
- */
- modules.Parser.prototype.impliedUrl = function(node, uf) {
- // implied URL rule
- /*
- a.h-x[href] <a class="h-card" href="glenn.html">Glenn</a>
- area.h-x[href] <area class="h-card" href="glenn.html">Glenn</area>
- .h-x>a[href]:only-of-type:not[.h-*] <div class="h-card" ><a href="glenn.html">Glenn</a><p>...</p></div>
- .h-x>area[href]:only-of-type:not[.h-*] <div class="h-card" ><area href="glenn.html">Glenn</area><p>...</p></div>
- */
- var value;
- if(!uf.properties.url) {
- value = this.getImpliedProperty(node, ['a', 'area'], this.getURLAttr);
- if(value) {
- // relative to absolute URL
- if(value && value !== '' && this.options.baseUrl !== '' && value.indexOf('://') === -1) {
- value = modules.url.resolve(value, this.options.baseUrl);
- }
- uf.properties.url = [modules.utils.trim(value)];
- }
- }
- return uf;
- };
-
-
- /**
- * apply implied date rule - if there is a time only property try to concat it with any date property
- *
- * @param {DOM Node} node
- * @param {Object} uf
- * @return {Object}
- */
- modules.Parser.prototype.impliedDate = function(uf) {
- // implied date rule
- // http://microformats.org/wiki/value-class-pattern#microformats2_parsers
- // http://microformats.org/wiki/microformats2-parsing-issues#implied_date_for_dt_properties_both_mf2_and_backcompat
- var newDate;
- if(uf.times.length > 0 && uf.dates.length > 0) {
- newDate = modules.dates.dateTimeUnion(uf.dates[0][1], uf.times[0][1], this.options.dateFormat);
- uf.properties[this.removePropPrefix(uf.times[0][0])][0] = newDate.toString(this.options.dateFormat);
- }
- // clean-up object
- delete uf.times;
- delete uf.dates;
- return uf;
- };
-
-
- /**
- * get an implied property value from pre-defined tag/attriubte combinations
- *
- * @param {DOM Node} node
- * @param {String} tagList (Array of tags from which an implied value can be pulled)
- * @param {String} getAttrFunction (Function which can extract implied value)
- * @return {String || null}
- */
- modules.Parser.prototype.getImpliedProperty = function(node, tagList, getAttrFunction) {
- // i.e. img.h-card
- var value = getAttrFunction(node),
- descendant,
- child;
-
- if(!value) {
- // i.e. .h-card>img:only-of-type:not(.h-card)
- descendant = modules.domUtils.getSingleDescendantOfType( node, tagList);
- if(descendant && this.hasHClass(descendant) === false){
- value = getAttrFunction(descendant);
- }
- if(node.children.length > 0 ){
- // i.e. .h-card>:only-child>img:only-of-type:not(.h-card)
- child = modules.domUtils.getSingleDescendant(node);
- if(child && this.hasHClass(child) === false){
- descendant = modules.domUtils.getSingleDescendantOfType(child, tagList);
- if(descendant && this.hasHClass(descendant) === false){
- value = getAttrFunction(descendant);
- }
- }
- }
- }
-
- return value;
- };
-
-
- /**
- * get an implied name value from a node
- *
- * @param {DOM Node} node
- * @return {String || null}
- */
- modules.Parser.prototype.getNameAttr = function(node) {
- var value = modules.domUtils.getAttrValFromTagList(node, ['img','area'], 'alt');
- if(!value) {
- value = modules.domUtils.getAttrValFromTagList(node, ['abbr'], 'title');
- }
- return value;
- };
-
-
- /**
- * get an implied photo value from a node
- *
- * @param {DOM Node} node
- * @return {String || null}
- */
- modules.Parser.prototype.getPhotoAttr = function(node) {
- var value = modules.domUtils.getAttrValFromTagList(node, ['img'], 'src');
- if(!value && modules.domUtils.hasAttributeValue(node, 'class', 'include') === false) {
- value = modules.domUtils.getAttrValFromTagList(node, ['object'], 'data');
- }
- return value;
- };
-
-
- /**
- * get an implied photo value from a node
- *
- * @param {DOM Node} node
- * @return {String || null}
- */
- modules.Parser.prototype.getURLAttr = function(node) {
- var value = null;
- if(modules.domUtils.hasAttributeValue(node, 'class', 'include') === false){
-
- value = modules.domUtils.getAttrValFromTagList(node, ['a'], 'href');
- if(!value) {
- value = modules.domUtils.getAttrValFromTagList(node, ['area'], 'href');
- }
-
- }
- return value;
- };
-
-
- /**
- *
- *
- * @param {DOM Node} node
- * @param {Object} uf
- * @return {Object}
- */
- modules.Parser.prototype.impliedValue = function(node, uf, parentClasses){
-
- // intersection of implied name and implied value rules
- if(uf.properties.name) {
- if(uf.value && parentClasses.root.length > 0 && parentClasses.properties.length === 1){
- uf = this.getAltValue(uf, parentClasses.properties[0][0], 'p-name', uf.properties.name[0]);
- }
- }
-
- // intersection of implied URL and implied value rules
- if(uf.properties.url) {
- if(parentClasses && parentClasses.root.length === 1 && parentClasses.properties.length === 1){
- uf = this.getAltValue(uf, parentClasses.properties[0][0], 'u-url', uf.properties.url[0]);
- }
- }
-
- // apply alt value
- if(uf.altValue !== null){
- uf.value = uf.altValue.value;
- }
- delete uf.altValue;
-
-
- return uf;
- };
-
-
- /**
- * get alt value based on rules about parent property prefix
- *
- * @param {Object} uf
- * @param {String} parentPropertyName
- * @param {String} propertyName
- * @param {String} value
- * @return {Object}
- */
- modules.Parser.prototype.getAltValue = function(uf, parentPropertyName, propertyName, value){
- if(uf.value && !uf.altValue){
- // first p-name of the h-* child
- if(modules.utils.startWith(parentPropertyName,'p-') && propertyName === 'p-name'){
- uf.altValue = {name: propertyName, value: value};
- }
- // if it's an e-* property element
- if(modules.utils.startWith(parentPropertyName,'e-') && modules.utils.startWith(propertyName,'e-')){
- uf.altValue = {name: propertyName, value: value};
- }
- // if it's an u-* property element
- if(modules.utils.startWith(parentPropertyName,'u-') && propertyName === 'u-url'){
- uf.altValue = {name: propertyName, value: value};
- }
- }
- return uf;
- };
-
-
- /**
- * if a h-feed does not have a title use the title tag of a page
- *
- * @param {Object} uf
- * @return {Object}
- */
- modules.Parser.prototype.impliedhFeedTitle = function( uf ){
- if(uf.type && uf.type.indexOf('h-feed') > -1){
- // has no name property
- if(uf.properties.name === undefined || uf.properties.name[0] === '' ){
- // use the text from the title tag
- var title = modules.domUtils.querySelector(this.document, 'title');
- if(title){
- uf.properties.name = [modules.domUtils.textContent(title)];
- }
- }
- }
- return uf;
- };
-
-
-
- /**
- * implied Geo from pattern <abbr class="p-geo" title="37.386013;-122.082932">
- *
- * @param {Object} uf
- * @return {Object}
- */
- modules.Parser.prototype.impliedGeo = function( uf ){
- var geoPair,
- parts,
- longitude,
- latitude,
- valid = true;
-
- if(uf.type && uf.type.indexOf('h-geo') > -1){
-
- // has no latitude or longitude property
- if(uf.properties.latitude === undefined || uf.properties.longitude === undefined ){
-
- geoPair = (uf.properties.name)? uf.properties.name[0] : null;
- geoPair = (!geoPair && uf.properties.value)? uf.properties.value : geoPair;
-
- if(geoPair){
- // allow for the use of a ';' as in microformats and also ',' as in Geo URL
- geoPair = geoPair.replace(';',',');
-
- // has sep char
- if(geoPair.indexOf(',') > -1 ){
- parts = geoPair.split(',');
-
- // only correct if we have two or more parts
- if(parts.length > 1){
-
- // latitude no value outside the range -90 or 90
- latitude = parseFloat( parts[0] );
- if(modules.utils.isNumber(latitude) && latitude > 90 || latitude < -90){
- valid = false;
- }
-
- // longitude no value outside the range -180 to 180
- longitude = parseFloat( parts[1] );
- if(modules.utils.isNumber(longitude) && longitude > 180 || longitude < -180){
- valid = false;
- }
-
- if(valid){
- uf.properties.latitude = [latitude];
- uf.properties.longitude = [longitude];
- }
- }
-
- }
- }
- }
- }
- return uf;
- };
-
-
- /**
- * if a backwards compat built structure has no properties add name through this.impliedName
- *
- * @param {Object} uf
- * @return {Object}
- */
- modules.Parser.prototype.impliedBackwardComp = function(node, uf, parentClasses){
-
- // look for pattern in parent classes like "p-geo h-geo"
- // these are structures built from backwards compat parsing of geo
- if(parentClasses.root.length === 1 && parentClasses.properties.length === 1) {
- if(parentClasses.root[0].replace('h-','') === this.removePropPrefix(parentClasses.properties[0][0])) {
-
- // if microformat has no properties apply the impliedName rule to get value from containing node
- // this will get value from html such as <abbr class="geo" title="30.267991;-97.739568">Brighton</abbr>
- if( modules.utils.hasProperties(uf.properties) === false ){
- uf = this.impliedName( node, uf );
- }
- }
- }
-
- return uf;
- };
-
-
-
- }
-
- return modules;
-
-} (Modules || {}));
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