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Detect HTML Tags, Attributes and Attribute Values Hacker Rank Solution – Queslers

February 12, 2022
Hacker Rank Solution

Problem : Detect HTML Tags, Attributes and Attribute Values Hacker Rank Solution

You are given an HTML code snippet of N lines.
Your task is to detect and print all the HTML tags, attributes and attribute values.
Print the detected items in the following format:

Tag1
Tag2
-> Attribute2[0] > Attribute_value2[0]
-> Attribute2[1] > Attribute_value2[1]
-> Attribute2[2] > Attribute_value2[2]
Tag3
-> Attribute3[0] > Attribute_value3[0]

The -> symbol indicates that the tag contains an attribute. It is immediately followed by the name of the attribute and the attribute value.
The > symbol acts as a separator of attributes and attribute values.
If an HTML tag has no attribute then simply print the name of the tag.

Note: Do not detect any HTML tag, attribute or attribute value inside the HTML comment tags (<!– Comments –>). Comments can be multiline.
All attributes have an attribute value.

Input Format :

The first line contains an integer N, the number of lines in the HTML code snippet.
The next N lines contain HTML code.

Constraints :

0 < N < 100

Output Format :

Print the HTML tags, attributes and attribute values in order of their occurrence from top to bottom in the snippet.
Format your answers as explained in the problem statement.

Sample Input :

9
<head>
<title>HTML</title>
</head>
<object type="application/x-flash" 
  data="your-file.swf" 
  width="0" height="0">
  <!-- <param name="movie" value="your-file.swf" /> -->
  <param name="quality" value="high"/>
</object>

Sample Output :

head
title
object
-> type > application/x-flash
-> data > your-file.swf
-> width > 0
-> height > 0
param
-> name > quality
-> value > high

Explanation :

head tag: Print the head tag only because it has no attribute.
title tag: Print the title tag only because it has no attribute.
object tag: Print the object tag. In the next 4 lines, print the attributes type, data, width and height along with their respective values.
<!– Comment –> tag: Don’t detect anything inside it.
param tag: Print the param tag. In the next 2 Lines, print the attributes name along with their respective values.

Detect HTML Tags, Attributes and Attribute Values Hacker Rank Solution in python 2

import re
num_lines = input()
lines = [raw_input() for i in xrange(num_lines)]
text = ' '.join(lines)
text = re.sub(r'<!--.*?-->', '', text, flags=re.DOTALL)

from HTMLParser import HTMLParser
class Parser(HTMLParser):
    def handle_starttag(self, tag, attrs):
        print tag
        for name, val in attrs:
            print '->', name, '>', val

Parser().feed(text)

Detect HTML Tags, Attributes and Attribute Values Hacker Rank Solution in python 3

# Enter your code here. Read input from STDIN. Print output to STDOUT
from html.parser import HTMLParser
class MyHTMLParser(HTMLParser):
    def handle_starttag(self, tag, attrs):
        print(tag)
        [print('-> {} > {}'.format(*attr)) for attr in attrs]
        
html = '\n'.join([input() for _ in range(int(input()))])
parser = MyHTMLParser()
parser.feed(html)
parser.close()

Detect HTML Tags, Attributes and Attribute Values Hacker Rank Solution in pypy

# Enter your code here. Read input from STDIN. Print output to STDOUT
from HTMLParser import HTMLParser

class parseHTML(HTMLParser):
    def handle_starttag(self, tag, attrs):
        print tag
        for attr in attrs:
            print "->", attr[0], ">", attr[1]

parser = parseHTML()
for _ in xrange(input()):
    parser.feed(raw_input())

Detect HTML Tags, Attributes and Attribute Values Hacker Rank Solution in pypy 3

# Enter your code here. Read input from STDIN. Print output to STDOUT

from html.parser import HTMLParser


class MyHTMLParser(HTMLParser):
    def handle_starttag(self,tag, attrs):
        print(tag)
        for i in attrs:
            print("->",i[0],">",i[1])
        
    def handle_startendtag(self,tag, attrs):
        print(tag)
        for i in attrs:
            print("->",i[0],">",i[1])


N=int(input())
tmp=""
for _ in range(N):
    tmp=tmp+input()+"\n"
    

    
psr=MyHTMLParser()
psr.feed(tmp)

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