Doc Steve Web Coding Service: Technical Notes: Frequently Used Symbols

Commonly used Escape codes for non-printable characters in URIs

Escape Code	Character Represented
(based on ASCII codes in hexadecimal)
%0A	LF	Line feed
%0D	CR	Carriage return
%20		Blank
%21	!	Exclamation point
%22	"	Double quote
%23	#	Number sign
%24	$	Dollar sign
%25	%	Percent sign
%26	&	Ampersand
%2C	,	Comma
%2E	.	Period
%3A	:	Full colon
%3B	;	Semi-conlon
%3D	=	Equal sign
%3F	?	Question mark
%40	@	At sign
%5E	^	Carrot
%5F	_	Underscore
%60	`	Right single quote
%7C	\|	Verticle bar
%7E	~	Tilde
%7B	{	Left curly brace
%7D	}	Right curly brace
%28	(	Left parenthesis
%29	)	Right parenthesis
%2F	/	Forward slash
%74	\	Back slash
%3C	<	Less than (left angle bracket)
%3E	>	Greater than (right angle bracket)

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Commonly used html codes for special characters

N.B., HTML 5 special characters are now available from the W3C at HTML 5 Character Entity Reference

html Code
(character)	(numeric)	Character Represented
			Tab
			Space
"	"	"	Quotation mark
	#	#	Number sign
	$	$	Dollar sign
&	&	&	Ampersand
'	'	'	Apostrophe
	*	*	Asterisk
<	<	<	Less than (left angle bracket)
>	>	>	Greater than (right angle bracket)
	@	@	"At" sign
			Space (non-break)
	¢	¢	Cent sign
	§	§	Section sign
	®	®	"Registered" symbol
	©	©	"Copyright" symbol
	°	°	Degree sign
	±	±	Plus/minus sign
	²	²	Superscript: two
	³	³	Superscript: three
	·	·	Middle dot
	¼	¼	Fraction: one-fourth
	½	½	Fraction: one-half
	¾	¾	Fraction: three-fourths
	÷	÷	Division sign
(not recognized prior to NS6/IE5)
–	–	–	en-dash (non-break)
—	—	—	em-dash (non-break)
•	•	•	Bullet
…	…	…	Elipsis (three-dot dot leader)
™		™

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ALSO, see the W3C references:

HTML 4.01 DTD: http://www.w3.org/TR/html401/sgml/dtd.html
: DTDs and entity definitions:; -- HTML 4.01 Strict; -- HTML 4.01 Loose (Transitional); -- HTML 4.01 Frameset; -- HTML Latin-1 characters; -- Special characters; -- Symbols

XHTML 1.1 DTD: http://www.w3.org/TR/2000/REC-xhtml1-20000126/#dtds
: DTDs and entity definitions:; -- XHTML 1.0 Strict; -- XHTML 1.0 Transitional; -- XHTML 1.0 Frameset; -- Latin-1 characters; -- Special characters; -- Symbols

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