Encode or decode HTML entities

Use the htmlentities Show archive.org snapshot gem.

Encoding works like this:

require 'htmlentities'
coder = HTMLEntities.new
string = "<élan>"
coder.encode(string)               # => "&lt;élan&gt;"
coder.encode(string, :named)       # => "&lt;&eacute;lan&gt;"
coder.encode(string, :decimal)     # => "&#60;&#233;lan&#62;"
coder.encode(string, :hexadecimal) # => "&#x3c;&#xe9;lan&#x3e;"

Decoding works like this:

require 'htmlentities'
coder = HTMLEntities.new
string = "&eacute;lan"
coder.decode(string) # => "élan"

Henning Koch

makandra.com

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Keywords

ruby, html, entities, unicode, utf, charset

License

Source code in this card is licensed under the MIT License.

Ruby: Replacing Unicode characters with a 7-bit transliteration

Using ActiveSupport

ActiveSupport comes with a #transliterate method which replaces characters with their low-ASCII equivalent (to strip accents etc.:):

ActiveSupport::Inflector.transliterate('aäoöuü') # => "aaoouu"

...

UTF-8ify an existing MySQL database

First do

ALTER DATABASE database_name CHARACTER SET "utf8";
ALTER DATABASE database_name COLLATE "utf8_unicode_ci";

After that, for each table:

ALTER TABLE table_name DEFAULT CHARACTER SET "utf8" COLLATE "utf8_unicode_ci";

This jus...

Posted by Henning Koch to makandra dev (2010-12-07 09:36)

Encode or decode HTML entities

Related cards:

Using ActiveSupport