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<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Diggernaut: Documentation for Meta-Language | Working with DOM | Split the Block</title>
<meta name="description" content="Split the block into many blocks using the specified separator.">
<meta name="keywords" content="Diggernaut, scraping, web scraping, scraper, web scraper, meta-language, make scraper, scraper for websites, learning to scrape, data acquisition, create scraper, online scraper, content scraper, scraper for shop, scraper for classifieds, coding scraper, dom, split">
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<h1>Method for Working with DOM</h1>
<div>
<h2>Split the Block</h2>
<p class="flow-text">
In some cases, you may need to split the contents of a block into several blocks,
to go further into each of these blocks and parse the contents separately.
For example, some parameters of the item can be listed as comma-separated values in
defined block, or separated by the <span class = "hlt"><br></span> tag. In this case, the <span class = "hlt2">split</span> command will help you.
It can work in two contexts: text and HTML. In the text context, it works with the contents of all text nodes of the current block, and in the HTML context - with the HTML content of the current block.
The result of the command execution will be a new block, in the context of which the digger will automatically switch.
</p>
<p class="flow-text">
Command can use following paramenters:
</p>
<table class="responsive-table highlight">
<thead>
<tr>
<th data-field="parameter">Parameter</th>
<th data-field="description">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="centered">context</td>
<td>Defines context for the command: <span class="hlt">text</span> or <span class="hlt">html</span>.</td>
</tr>
<tr>
<td>delimiter</td>
<td>Separator, which will be used to split contents to blocks.</td>
</tr>
</tbody>
</table>
<p class="flow-text">
Let's use following HTML source:
</p>
<pre class="language-markup">
<code class="language-markup"><div>
<p>Some text</p>
<br/>
<p>Some,other,text with
comma
and
newline</p>
</div>
</code></pre>
<p class="flow-text">
Usage examples:
</p>
<div class="row">
<div class="col s12">
<ul class="tabs excdark">
<li class="tab col s6"><a class="active" href="#split_text">Text</a></li>
<li class="tab col s6"><a href="#split_html">HTML</a></li>
</ul>
</div>
<div id="split_text" class="col s12">
<pre class="language-yaml">
<code class="language-yaml">- find:
path: div > p:contains(",")
do:
- split:
context: text
delimiter: ","
# AT THIS MOMENT WE WILL BE IN NEW BLOCK
# WHICH IS CREATED BY THE `split` COMMAND
# THIS BLOCK WILL HAVE FOLLOWING HTML CONTENT:
# <div class="splitted element_0">Some</div>
# <div class="splitted element_1">other</div>
# <div class="splitted element_2">text with comma and newline</div>
# LETS USE FOLLOWING CSS SELECTOR AND SELECT LAST SPLITTED BLOCK
- find:
path: .splitted
slice: -1
do:
- parse
# REGISTER VALUE: text with comma and newline
</code></pre>
</div>
<div id="split_html" class="col s12">
<pre class="language-yaml">
<code class="language-yaml">- find:
path: div
do:
- split:
context: html
delimiter: <br/>
# AT THIS MOMENT WE WILL BE IN NEW BLOCK
# WHICH IS CREATED BY THE `split` COMMAND
# THIS BLOCK WILL HAVE FOLLOWING HTML CONTENT:
# <div class="splitted element_0"><p>Some text</p></div>
# <div class="splitted element_1"><p>Some,other,text with comma and newline</p></div>
# LETS USE FOLLOWING CSS SELECTOR AND SELECT LAST SPLITTED BLOCK
- find:
path: .splitted
slice: -1
do:
- parse
# REGISTER VALUE: Some,other,text with comma and newline
</code></pre>
</div>
</div>
<p class="flow-text">
In the next chapter, we will learn how to split the contents of a block into blocks using sequences.
</p>
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