How is Reading Mode Implemented in Browsers?

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Ivan2017-02-05 05:05:46

Programming

Ivan, 2017-02-05 05:05:46

Many modern browsers have a so-called "reading mode" that leaves only the text of the article with pictures on the page, removing all other formatting, advertising and unnecessary site blocks.
How is this feature implemented in software?
What algorithm can be used to get the text of the article from the web page without unnecessary blocks just as competently?

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1 answer(s)

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xmoonlight, 2017-02-05
@iwqn

Parsing the DOM tree and identifying the block containing the main content.
Simple filtering by the amount of text in one unique block without repetitions (lists) at the current level of the DOM tree.