string-conversion table

form.html

<h3>String conversions</h3> 
<table border=0 cellspacing=1 cellpadding=5 bgcolor=gray> 
<tr> 
<th>type</th> 
<th>expression</th> 
<th>to-string</th> 
<th>form</th> 
<th>mold</th> 
<th>mold/all</th> 
</tr> 
<tr bgcolor="white"> 
<th>unset!</th> 
<th>( )</th> 
<td> 
<em>error</em> 
</td> 
<td> 
<em>empty string</em> 
</td> 
<td> 
unset 
</td> 
<td> 
unset 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>none!</th> 
<th>#[none]</th> 
<td> 
<em>error</em> 
</td> 
<td> 
none 
</td> 
<td> 
none 
</td> 
<td> 
none 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>logic!</th> 
<th>#[true]</th> 
<td> 
true 
</td> 
<td> 
true 
</td> 
<td> 
true 
</td> 
<td> 
true 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>char!</th> 
<th>#"a"</th> 
<td> 
a 
</td> 
<td> 
a 
</td> 
<td> 
#"a" 
</td> 
<td> 
#"a" 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>integer!</th> 
<th>123</th> 
<td> 
123 
</td> 
<td> 
123 
</td> 
<td> 
123 
</td> 
<td> 
123 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>float!</th> 
<th>123.456</th> 
<td> 
123.456 
</td> 
<td> 
123.456 
</td> 
<td> 
123.456 
</td> 
<td> 
123.456 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>percent!</th> 
<th>50%</th> 
<td> 
50% 
</td> 
<td> 
50% 
</td> 
<td> 
50% 
</td> 
<td> 
50% 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>pair!</th> 
<th>1x2</th> 
<td> 
1x2 
</td> 
<td> 
1x2 
</td> 
<td> 
1x2 
</td> 
<td> 
1x2 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>tuple!</th> 
<th>1.2.3</th> 
<td> 
1.2.3 
</td> 
<td> 
1.2.3 
</td> 
<td> 
1.2.3 
</td> 
<td> 
1.2.3 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>date!</th> 
<th>now/date</th> 
<td> 
9-Jun-2018 
</td> 
<td> 
9-Jun-2018 
</td> 
<td> 
9-Jun-2018 
</td> 
<td> 
9-Jun-2018 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>time!</th> 
<th>now/time</th> 
<td> 
11:42:20 
</td> 
<td> 
11:42:20 
</td> 
<td> 
11:42:20 
</td> 
<td> 
11:42:20 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>word!</th> 
<th>'abc</th> 
<td> 
abc 
</td> 
<td> 
abc 
</td> 
<td> 
abc 
</td> 
<td> 
abc 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>set-word!</th> 
<th>quote abc:</th> 
<td> 
abc 
</td> 
<td> 
abc 
</td> 
<td> 
abc: 
</td> 
<td> 
abc: 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>lit-word!</th> 
<th>quote 'abc</th> 
<td> 
abc 
</td> 
<td> 
abc 
</td> 
<td> 
'abc 
</td> 
<td> 
'abc 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>get-word!</th> 
<th>quote :abc</th> 
<td> 
abc 
</td> 
<td> 
abc 
</td> 
<td> 
:abc 
</td> 
<td> 
:abc 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>refinement!</th> 
<th>/abc</th> 
<td> 
abc 
</td> 
<td> 
abc 
</td> 
<td> 
/abc 
</td> 
<td> 
/abc 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>issue!</th> 
<th>#abc</th> 
<td> 
abc 
</td> 
<td> 
abc 
</td> 
<td> 
#abc 
</td> 
<td> 
#abc 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>block!</th> 
<th>[1 2 3]</th> 
<td> 
123 
</td> 
<td> 
1 2 3 
</td> 
<td> 
[1 2 3] 
</td> 
<td> 
[1 2 3] 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>paren!</th> 
<th>quote (1 2 3)</th> 
<td> 
123 
</td> 
<td> 
1 2 3 
</td> 
<td> 
(1 2 3) 
</td> 
<td> 
(1 2 3) 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>hash!</th> 
<th>make hash! [1 2 3]</th> 
<td> 
123 
</td> 
<td> 
1 2 3 
</td> 
<td> 
make hash! ... 
</td> 
<td> 
make hash! ... 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>path!</th> 
<th>'a/b/c</th> 
<td> 
a/b/c 
</td> 
<td> 
a/b/c 
</td> 
<td> 
a/b/c 
</td> 
<td> 
a/b/c 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>lit-path!</th> 
<th>quote 'a/b/c</th> 
<td> 
'a/b/c 
</td> 
<td> 
'a/b/c 
</td> 
<td> 
'a/b/c 
</td> 
<td> 
'a/b/c 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>set-path!</th> 
<th>quote a/b/c:</th> 
<td> 
a/b/c: 
</td> 
<td> 
a/b/c: 
</td> 
<td> 
a/b/c: 
</td> 
<td> 
a/b/c: 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>get-path!</th> 
<th>quote :a/b/c</th> 
<td> 
:a/b/c 
</td> 
<td> 
:a/b/c 
</td> 
<td> 
:a/b/c 
</td> 
<td> 
:a/b/c 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>string!</th> 
<th>"abc"</th> 
<td> 
abc 
</td> 
<td> 
abc 
</td> 
<td> 
"abc" 
</td> 
<td> 
"abc" 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>file!</th> 
<th>%abc.def</th> 
<td> 
abc.def 
</td> 
<td> 
abc.def 
</td> 
<td> 
%abc.def 
</td> 
<td> 
%abc.def 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>url!</th> 
<th>http://abc.def</th> 
<td> 
http://abc.def 
</td> 
<td> 
http://abc.def 
</td> 
<td> 
http://abc.def 
</td> 
<td> 
http://abc.def 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>tag!</th> 
<th>&lt;a href="red-lang.org"&gt;</th> 
<td> 
a href="red-lang.org" 
</td> 
<td> 
&lt;a href="red-lang.org"&gt; 
</td> 
<td> 
&lt;a href="red-lang.org"&gt; 
</td> 
<td> 
&lt;a href="red-lang.org"&gt; 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>email!</th> 
<th>user@host.com</th> 
<td> 
user@host.com 
</td> 
<td> 
user@host.com 
</td> 
<td> 
user@host.com 
</td> 
<td> 
user@host.com 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>vector!</th> 
<th>make vector! [1 2 3]</th> 
<td> 
1 2 3 
</td> 
<td> 
1 2 3 
</td> 
<td> 
make vector! ... 
</td> 
<td> 
make vector! ... 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>image!</th> 
<th>make image! 2x2</th> 
<td> 
make image! ... 
</td> 
<td> 
make image! ... 
</td> 
<td> 
make image! ... 
</td> 
<td> 
make image! ... 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>binary!</th> 
<th>#{313233}</th> 
<td> 
123 
</td> 
<td> 
#{313233} 
</td> 
<td> 
#{313233} 
</td> 
<td> 
#{313233} 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>bitset!</th> 
<th>charset "abc"</th> 
<td> 
make bitset! ... 
</td> 
<td> 
make bitset! ... 
</td> 
<td> 
make bitset! ... 
</td> 
<td> 
make bitset! ... 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>map!</th> 
<th>#(a: 1 b: 2)</th> 
<td> 
a: 1
b: 2 
</td> 
<td> 
a: 1
b: 2 
</td> 
<td> 
#(
    a: 1
    b: 2
) 
</td> 
<td> 
#(
    a: 1
    b: 2
) 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>object!</th> 
<th>object [a: 1 b: 2]</th> 
<td> 
a: 1
b: 2 
</td> 
<td> 
a: 1
b: 2 
</td> 
<td> 
make object! ... 
</td> 
<td> 
make object! ... 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>error!</th> 
<th>try [1 / 0]</th> 
<td> 
*** Math Error: ... 
</td> 
<td> 
*** Math Error: ... 
</td> 
<td> 
make error! ... 
</td> 
<td> 
make error! ... 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>native!</th> 
<th>:if</th> 
<td> 
?native? 
</td> 
<td> 
?native? 
</td> 
<td> 
make native! ... 
</td> 
<td> 
make native! ... 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>action!</th> 
<th>:add</th> 
<td> 
?action? 
</td> 
<td> 
?action? 
</td> 
<td> 
make action! ... 
</td> 
<td> 
make action! ... 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>op!</th> 
<th>:+</th> 
<td> 
?op? 
</td> 
<td> 
?op? 
</td> 
<td> 
make op! ... 
</td> 
<td> 
make op! ... 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>function!</th> 
<th>func [a b][a + b]</th> 
<td> 
?function? 
</td> 
<td> 
?function? 
</td> 
<td> 
func[...][...] 
</td> 
<td> 
func[...][...] 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>routine!</th> 
<th>:event?</th> 
<td> 
?routine? 
</td> 
<td> 
?routine? 
</td> 
<td> 
routine[...][...] 
</td> 
<td> 
routine[...][...] 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>datatype!</th> 
<th>action!</th> 
<td> 
action 
</td> 
<td> 
action 
</td> 
<td> 
action! 
</td> 
<td> 
action! 
</td> 
</tr> 
<tr bgcolor="white"> 
<th>typeset!</th> 
<th>number!</th> 
<td> 
make typeset! ... 
</td> 
<td> 
make typeset! ... 
</td> 
<td> 
make typeset! ... 
</td> 
<td> 
make typeset! ... 
</td> 
</tr> 
</table> 

GH doesn't render it. I'll just copy it into the comment so I may see it ☻

String conversions

type	expression	to-string	form	mold	mold/all
unset!	( )	error	empty string	unset	unset
none!	#[none]	error	none	none	none
logic!	#[true]	true	true	true	true
char!	#"a"	a	a	#"a"	#"a"
integer!	123	123	123	123	123
float!	123.456	123.456	123.456	123.456	123.456
percent!	50%	50%	50%	50%	50%
pair!	1x2	1x2	1x2	1x2	1x2
tuple!	1.2.3	1.2.3	1.2.3	1.2.3	1.2.3
date!	now/date	9-Jun-2018	9-Jun-2018	9-Jun-2018	9-Jun-2018
time!	now/time	11:42:20	11:42:20	11:42:20	11:42:20
word!	'abc	abc	abc	abc	abc
set-word!	quote abc:	abc	abc	abc:	abc:
lit-word!	quote 'abc	abc	abc	'abc	'abc
get-word!	quote :abc	abc	abc	:abc	:abc
refinement!	/abc	abc	abc	/abc	/abc
issue!	#abc	abc	abc	#abc	#abc
block!	[1 2 3]	123	1 2 3	[1 2 3]	[1 2 3]
paren!	quote (1 2 3)	123	1 2 3	(1 2 3)	(1 2 3)
hash!	make hash! [1 2 3]	123	1 2 3	make hash! ...	make hash! ...
path!	'a/b/c	a/b/c	a/b/c	a/b/c	a/b/c
lit-path!	quote 'a/b/c	'a/b/c	'a/b/c	'a/b/c	'a/b/c
set-path!	quote a/b/c:	a/b/c:	a/b/c:	a/b/c:	a/b/c:
get-path!	quote :a/b/c	:a/b/c	:a/b/c	:a/b/c	:a/b/c
string!	"abc"	abc	abc	"abc"	"abc"
file!	%abc.def	abc.def	abc.def	%abc.def	%abc.def
url!	http://abc.def	http://abc.def	http://abc.def	http://abc.def	http://abc.def
tag!	<a href="red-lang.org">	a href="red-lang.org"	<a href="red-lang.org">	<a href="red-lang.org">	<a href="red-lang.org">
email!	user@host.com	user@host.com	user@host.com	user@host.com	user@host.com
vector!	make vector! [1 2 3]	1 2 3	1 2 3	make vector! ...	make vector! ...
image!	make image! 2x2	make image! ...	make image! ...	make image! ...	make image! ...
binary!	#{313233}	123	#{313233}	#{313233}	#{313233}
bitset!	charset "abc"	make bitset! ...	make bitset! ...	make bitset! ...	make bitset! ...
map!	#(a: 1 b: 2)	a: 1 b: 2	a: 1 b: 2	#( a: 1 b: 2 )	#( a: 1 b: 2 )
object!	object [a: 1 b: 2]	a: 1 b: 2	a: 1 b: 2	make object! ...	make object! ...
error!	try [1 / 0]	*** Math Error: ...	*** Math Error: ...	make error! ...	make error! ...
native!	:if	?native?	?native?	make native! ...	make native! ...
action!	:add	?action?	?action?	make action! ...	make action! ...
op!	:+	?op?	?op?	make op! ...	make op! ...
function!	func [a b][a + b]	?function?	?function?	func[...][...]	func[...][...]
routine!	:event?	?routine?	?routine?	routine[...][...]	routine[...][...]
datatype!	action!	action	action	action!	action!
typeset!	number!	make typeset! ...	make typeset! ...	make typeset! ...	make typeset! ...