In the FHIR specification, the narrative has two child elements, status and div, with both having a cardinality of 1..1. My understanding of this is that narratives must have child elements status and div.
However, I have seen resources in which the narratives have no such child elements, like the discharge summary-example here. Such a resource will also be validated as valid by the FHIR validator. Am I missing or misunderstanding something here?
The text element itself is optional. So some resources don't have text, and if they don't have text, they don't have status or div. If text is present, both status and div must be present.
Related
I am trying to grab some content from webpages that are not structured in a uniform fashion. What I want to do is tell the XPATH to grab any content within html tags in the order it sees them and return the results, without having to specify div names etc, as they are different and not very uniform.
So I need to know how to just say 'return any html content in the order that it's found from within tags, regardless of whether they are classes, ems, strong tags etc. The only experience I have had with XPATH is to specify actual div names, example:
//div[#id='tab_info']
This XPath,
string(/)
will return the string value of the entire XML or HTML document. That is, it'll return a single string of all of the text in document order, as requested.
I am trying to find all DIV elements have the attribute widget-name and a descendant span tag that have a title attribute.
This is what I am trying.
//div[#widget-name and descendant::span[#title]]"
This seems to almost work but it is missing one element in the Nodes Collection it returns.
Never mind.
This is what I needed:
//div[#widget-name and descendant::span[#class='title']]
OK - take it back.
This is not the complete answer.
I am now trying to tweak this to where it returns all except where title is not equal to some text:
//div[#widget-name and descendant::span[#class='title' and [text()[contains(., '{someTextToKeep}'
Anyone see why this would be invalid XPath?
Final answer is:
//div[#widget-name and descendant::span[#class='title' and text()[not(contains(., 'someTextToKeep'))]]]"
This XPath should return all div's that:
has a widget-name attribute
has a descendant span element (used abbreviated syntax) that:
has a class attribute with the value 'title'
contains the text 'someTextToKeep' (if you want to exclude spans with certain text, wrap the contains() in not().
XPath:
//div[#widget-name and .//span[#class='title'][contains(.,'someTextToKeep')]]
I would like to allow h1 tags but not inside a list. For example, valid code would be <h1>Title</h1><ul><li>Item 1</li></ul>. Invalid code would be <ul><li><h1>Item 1</h1></li></ul>.
Is it this possible? ACF seems to be related to tags independently of context, if I am right. Is there any other way of doing it?
I have loaded a web page into the HTML Agility Pack and have a DOM. I want to use XPATH to pull out all of the text on the page (but not the javascript found within <script> tags).
I figure I need a //text() and then a 'not' to ignore any tag within the branch that has a <script> in it.
I have tried
doc.DocumentNode.SelectNodes("//text()[not(self::script)]"))
and
doc.DocumentNode.SelectNodes("//text()[not(script)]"))
but neither work. An example of the XPath property of a node that they return is (notice the Script)
/html[1]/body[1]/div[2]/div[4]/div[1]/div[1]/div[1]/div[3]/script[1]/#text[1]
I have consulted with both of these posts.
Is it possible to do 'not' matching in XPath?
Grab all text from html with Html Agility Pack (This is a good post but it brings out the JS)
Any suggestions?
Your first attempt rejects all text nodes that are script elements, and your second rejects all text nodes that have script node children. Of course, in both cases, the condition is never true.
You haven't explained your requirements clearly, but I guess you want to reject all text nodes that have script elements as their parent, which would be
//text()[not(parent::script)]
or
//*[not(self::script)]/text()
I want to check the structure of some html piece of markup, just checking the structure.
For example I need to check that SOMEWHERE in <list-item-canvas> tag is <image name='category-pic'> tag.
I write:
//div[#class='list-item-canvas'][1]/*/img[#name='category-pic']
That's working if <img> is a second node after any ('*') node in the hierarchy, BUT if I have <img> somewhere deep-deep in the structure, AND I do not want to care about the level hierarchy how then I should write my xpath-query? I would think that instead '*' I might write '**' but I can not..
Is it possible?
Use:
(//div[#class='list-item-canvas'])[1]//img[#name='category-pic']
This selects any img the string value of whose name attribute is 'category-pic' and that is a descendant of the first (in document order) div the string value of whose class attribute is 'list-item-canvas'.
Do note the bracets surrounding the subexpression:
(//div[#class='list-item-canvas'])[1]
this is quite different from:
//div[#class='list-item-canvas'][1]
the latter selects every div element in the document that is the first div child of its parent -- and there may be potentially more than one such elements.
Do this:
//div[#class='list-item-canvas'][1]//img[#name='category-pic']
The // before img lets you find any descendant of the div that is an img, instead of just children or grandchildren of the div.
Also are you sure you want the [1] there? It may not be doing what you think.