^^Characters inside an HTML document. HTML source text format. HTML characterset, HTML Encoding.

Codice HTML nascosto, e testo generato dal browser.

Control characters have nothing to do inside an HTML document, except 3 ctrl char

\t \x09 horizontal tab

\n \x0a line feed (newline)

\r \x0d carriage return

HTML Reserved Characters: 5 make up the HTML language.

they can't be used in the normal text because the browser will try to interpret it as HTML. Therefore they are represented by entity name or number

Character	Entity Number	Entity Name	Description
<	<	<	less-than
>	>	>	greater-than
"	"	"	quotation mark
'	'	'	apostrophe
&	&	&	ampersand

ref: html.am/html-special-characters

Syntax: &entity_name; &#entity_number; case sensitive

esadecimal: &#110 equi &#x6E &#x6e n equi n n.

&#8801 is ≡

  non-breaking Space, no-break space wp
‑non-breaking hyphen

2 words separated by a non-breaking will stick together (not break into a new line).
This is handy when breaking the words might be disruptive.

Examples:

§ 10 10 km/h 10 PM dovrebbero essere un'unità non rotta dall'andare a capo

aspira‑polvere aspira‑polvere aspira‑polvere aspira‑polvere aspira‑polvere aspira‑polvere aspira‑polvere aspira‑polvere

wp/Whitespace_character

  Non-collapsing

treat sequences of whitespace characters (space, newline, tab, form feed, etc.) as if they were a single character.

Such "collapsing" of whitespace allows the author to neatly arrange the source text using line breaks, indentation and other forms of spacing without affecting the final typeset result.

soup.tag.encode('Windows-1252") lo trasforma in \xa0

HTML characterset, HTML Encoding.

w3schools/html_charset ≡ HTML Encoding

To display an HTML page correctly, a web browser must know which character set to use.

The default character set for HTML5 is UTF-8.

Differences between Character Sets

ASCII Windows-1252 ISO-8859-1 UTF-8

0-7F sono tutti uguali, e qui si ferma ASCII

80-9F e' definito solo Windows-1252, sono 32 posti

A0-FF uguali

Numb	ASCII	cp1252	8859	UTF-8	Description
32					space
33	!	!	!	!	exclamation mark
126	~	~	~	~	tilde
127	DEL
128		€			euro sign
137		‰			per mille sign
147		“			left double quotation mark
148		”			right double quotation mark
149		•			bullet
159		Ÿ			Latin capital letter Y with diaeresis
160					no-break space
161		¡	¡	¡	inverted exclamation mark
162		¢	¢	¢	cent sign
170		ª	ª	ª	feminine ordinal indicator
176		°	°	°	degree sign
255		ÿ	ÿ	ÿ	Latin small letter y with diaeresis