Why \b is replaced with \u{65533} � ?

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Larry Zhao

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Jan 4, 2018, 9:48:43 AM1/4/18

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Hi, Guys,

Just found that nokogiri will replace "\b" in the original html string to \u{65533} � ,

Why is that? Is there a list for this? What kind of character will be replaced with \u{65533} � ?

Thanks a lot for the help & Best Regards.

Mike Dalessio

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Jan 4, 2018, 9:53:24 AM1/4/18

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Hi,

Thanks for asking this question. I'm not able to reproduce what you're seeing, can you help me understand your question?

Here's what I did to try to reproduce:

require 'nokogiri'

html = "<body><div>this is a single backslash '\b'</div><div>this is a double backslash '\\b'</div></body>"
doc = Nokogiri::HTML html

puts doc.to_html

output is:

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html><body>
<div>this is a single backslash ''</div>
<div>this is a double backslash '\b'</div>
</body></html>

and my system looks like:

$ nokogiri -v
# Nokogiri (1.8.1)
---
warnings: []
nokogiri: 1.8.1
ruby:
version: 2.4.1
platform: x86_64-linux
description: ruby 2.4.1p111 (2017-03-22 revision 58053) [x86_64-linux]
engine: ruby
libxml:
binding: extension
source: packaged
libxml2_path: "/home/flavorjones/.rvm/gems/ruby-2.4.1/gems/nokogiri-1.8.1/ports/x86_64-pc-linux-gnu/libxml2/2.9.5"
libxslt_path: "/home/flavorjones/.rvm/gems/ruby-2.4.1/gems/nokogiri-1.8.1/ports/x86_64-pc-linux-gnu/libxslt/1.1.30"
libxml2_patches: []
libxslt_patches: []
compiled: 2.9.5
loaded: 2.9.5

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