Is it possible to segment a bs4.element.Tag into several bs4.element.Tag?
You can think of an application as the following:
1- The original bs4.element.Tag contains a paragraph.
2- We want to segment the paragraph in the original bs4.element.Tag into sentences and get a bs4.element.Tag corresponding to each sentence.
Example:
paragraphs = soup.find_all('p') gives all the paragraphs in an HTML file.
Suppose a paragraph (which is also a bs4.element.Tag instance) is the following:
<p><i>Le Bassin Aux Nymphéas</i>, 1919. Monet's late series of water lily paintings are among his best-known works.
I would like to turn this bs4.element.Tag instance (which is also a paragraph) into 2 bs4.element.Tag instances as the following (one for each sentence):
First bs4.element.Tag should correspond to the first sentence:
<i>Le Bassin Aux Nymphéas</i>, 1919.
Second bs4.element.Tag should correspond to the second sentence:
Monet's late series of water lily paintings are among his best-known works.
Before posting, I tried the hive sentences function and did some search but couldn't get a clear understanding, my question is based on what delimiter hive sentences function breaks each sentence? hive manual says "appropriate boundary" what does that mean? Below is an example of my tries, I tried adding period (.) and exclamatory sign(!) at different points of the sentence. I'm getting different outputs, can someone explain on this?
with period (.)
select sentences('Tokenizes a string of natural language text into words and sentences. where each sentence is broken at the appropriate sentence boundary and returned as an array of words.') from dummytable
output - 1 array
[["Tokenizes","a","string","of","natural","language","text","into","words","and","sentences","where","each","sentence","is","broken","at","the","appropriate","sentence","boundary","and","returned","as","an","array","of","words"]]
with '!'
select sentences('Tokenizes a string of natural language text into words and sentences! where each sentence is broken at the appropriate sentence boundary and returned as an array of words.') from dummytable
output - 2 arrays
[["Tokenizes","a","string","of","natural","language","text","into","words","and","sentences"],["where","each","sentence","is","broken","at","the","appropriate","sentence","boundary","and","returned","as","an","array","of","words"]]
If you understand the functionality of sentences()..it clears your doubt.
Definition of sentences(str):
Splits str into arrays of sentences, where each sentence is an array
of words.
Example:
SELECT sentences('Hello there! I am a UDF.') FROM src LIMIT 1;
[ ["Hello", "there"], ["I", "am", "a", "UDF"] ]
SELECT sentences('review . language') FROM movies;
[["review","language"]]
An exclamation point is a type of punctuation mark that goes at the end of a sentence. Other examples of related punctuation marks include periods and question marks, which also go at the end of sentences.But as per the definition of sentences() ,Unnecessary punctuation, such as periods and commas in English, is automatically stripped.So,we are able to get two arrays of words with !. It completely involves java.util.Locale.java
I don't know the actual reason but observed after period(.) if you put space and next word first letter as capital then it is working.
Here I changed from where to Where it it worked. However this is not require for !
Tokenizes a string of natural language text into words and sentences. Where each sentence is broken at the appropriate sentence boundary and returned as an array of words.
And this is giving below output
[["Tokenizes","a","string","of","natural","language","text","into","words","and","sentences"],["Where","each","sentence","is","broken","at","the","appropriate","sentence","boundary","and","returned","as","an","array","of","words"]]
I am facing a strange issue with the combination of using word delimiter and highlighter.
I have a String field named model_name which is analyzed at the field level using word delimiter tokenizer at both index and search time.
I have 2 other field named style_name, vin_no.
Sample Data
> model_name : Silverado 2500HD
> Style : Sedan 4 dr vin_no :
> JTHKD5BH4F2236174
When i search my mapping with the vin no "JTHKD5BH4F2236174", it matches the record as expected but while highlighting it highlights Style along with vin_no. In the style field it matches the character 4.
I know word delimiter splits the number and characters respectively but since i have it as a field level analyzer wont that be applied only to the model_name field, how is elastic search really highlighting the style field
The PDF file starts with the header %pdf. Can a valid pdf file have more than 1 such headers?
The Pdf specification says that it can have more than 1 trailers. But it does not talk about multiple headers. Can it have multiple headers?
It can have as many as you want, since the symbol % is used to represent comments inside a PDF file, so it's not actually a "header".
From the PDF specification:
7.2.3 Comments
Any occurrence of the PERCENT SIGN (25h) outside a string or stream
introduces a comment. The comment consists of all characters after the
PERCENT SIGN and up to but not including the end of the line,
including regular, delimiter, SPACE (20h), and HORZONTAL TAB
characters (09h). A conforming reader shall ignore comments, and treat
them as single white-space characters. That is, a comment separates
the token preceding it from the one following it.
EXAMPLE:
The PDF fragment in this example is syntactically equivalent to just
the tokens abc and 123. abc% comment ( /%) blah blah blah 123
I have a requirement to Print Long String into different strings with character limit as 20 with complete word and spaces, symbols, commas, dots has to be allowed.
Lets say the String is:
I have String Search the whole web or only webpages After doing some
research I think that I want to combine an if/then statement with
lookahead, i.e. go to the character limit and if there is a character
following it that is a space, add an ellipses, if it is a number or
letter, go to the final space within the limit and add an ellipses
It has to print like:
I have String Search ------> 20Characters with Complete Word
the
whole web or ------> 16C because limit is 20 but next word
Complete's at 21C So its limit to 16C
only webpages After ------->
19C because limit is 20 but next word ends at 25C
Use this RegEx Pattern: (.{1,20})(?:\s|$)
Escaped RegEx: (.{1,20})(?:\\s|$)
Explained demo here: http://regex101.com/r/pU4kI8