How to access itemprop = "name" from within a data structure in HTML code using Matlab?

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N/A
N/A 2019-3-26
评论： Sean de Wolski 2019-3-29
HTML code
<div class="itemName largestFont" itemprop="name"> Information which I want to extract </div>
<div class="itemCategory largeFont"><a href="/somerandomwebsitelink"> Information which I dont need </a></div>
I want to extract the information from itemprop = "name" only
using the selector feature with text analytics,
I can do "selector = "DIV.itemHeader"
Item Header is the class in which both those div elements lie and as a result both of the information within those divs is extracted.
I only want the information from itemprop = "name"
How do I go about doing that?
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Walter Roberson
Walter Roberson 2019-3-26
Unfortunately I do not have that toolbox to test with.
My own implementation would probably be to use regexp with named tokens and the 'names' option.

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采纳的回答

TADA
TADA 2019-3-26
编辑：TADA 2019-3-27
I don't have the toolbox you mentioned, but it most likely uses xpath to parse the html...
I think the best options are xpath or regular expressions.
as far as I know to use xpath in matlab you have to use Java classes, but regular expressions are built in to matlab and they are very covenient.
The regex pattern could be something like that:
str = ['<div class="itemName largestFont" itemprop="name"> Information which I want to extract </div>'...
'<div class="itemCategory largeFont"><a href="/somerandomwebsitelink"> Information which I dont need </a></div>'];
match = regexp(str, '<div\s+(\w+="[^"]*"\s+)*itemprop="name"(\s+\w+="[^"]*")*\s*>(?<data>[^<]*)</div>', 'names')
match =
struct with fields:
data: ' Information which I want to extract '
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更多回答（1 个）

Sean de Wolski
Sean de Wolski 2019-3-28
编辑：Sean de Wolski 2019-3-28
Using htmlTree, this is trivial:
tree = htmlTree(fileread('yourfile.html'))
div = tree.findElement('div')
item = div.getAttribute("itemprop")
names = item == "name"
div(names).extractHTMLText
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TADA
TADA 2019-3-28
Neither me nor Walter Robertson (as far as I know) work for mathworks... I'd gladly take that raise though :)
Sean de Wolski
Sean de Wolski 2019-3-29
@TADA, we're always hiring into MathWorks and have a distributor in Israel who may or may not be looking for MATLAB users.
@Shivam, this returns exactly what you want from your comment above:
s = string(webread("https://beta.trollandtoad.com/yugioh/invasion-of-chaos-ioc-unlimited-singles/manticore-of-darkness-ioc-067-ultra-rare-unlimited/1155511", weboptions('Timeout', 15)));
%%
tree = htmlTree(s)
%%
div = tree.findElement('div')
%%
item = div.getAttribute("itemprop")
%%
names = item == "name"
%%
div(names).extractHTMLText
ans =
"Manticore of Darkness - IOC-067 - Ultra Rare Unlimited"

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