?
Solved

escape codes please

Posted on 1998-07-14
3
Medium Priority
?
176 Views
Last Modified: 2013-12-25
Could someone give me (or point me to) a list of the hex escape sequence codes for special characters in a CGI request.
0
Comment
Question by:rafistern
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 84

Expert Comment

by:ozo
ID: 1830767
    | 00 nul | 01 soh | 02 stx | 03 etx | 04 eot | 05 enq | 06 ack | 07 bel |
     | 08 bs  | 09 ht  | 0a nl  | 0b vt  | 0c np  | 0d cr  | 0e so  | 0f si  |
     | 10 dle | 11 dc1 | 12 dc2 | 13 dc3 | 14 dc4 | 15 nak | 16 syn | 17 etb |
     | 18 can | 19 em  | 1a sub | 1b esc | 1c fs  | 1d gs  | 1e rs  | 1f us  |
     | 20 sp  | 21 !   | 22 "   | 23 #   | 24 $   | 25 %   | 26 &   | 27 '   |
     | 28 (   | 29 )   | 2a *   | 2b +   | 2c ,   | 2d -   | 2e .   | 2f /   |
     | 30 0   | 31 1   | 32 2   | 33 3   | 34 4   | 35 5   | 36 6   | 37 7   |
     | 38 8   | 39 9   | 3a :   | 3b ;   | 3c <   | 3d =   | 3e >   | 3f ?   |
     | 40 @   | 41 A   | 42 B   | 43 C   | 44 D   | 45 E   | 46 F   | 47 G   |
     | 48 H   | 49 I   | 4a J   | 4b K   | 4c L   | 4d M   | 4e N   | 4f O   |
     | 50 P   | 51 Q   | 52 R   | 53 S   | 54 T   | 55 U   | 56 V   | 57 W   |
     | 58 X   | 59 Y   | 5a Z   | 5b [   | 5c \   | 5d ]   | 5e ^   | 5f _   |
     | 60 `   | 61 a   | 62 b   | 63 c   | 64 d   | 65 e   | 66 f   | 67 g   |
     | 68 h   | 69 i   | 6a j   | 6b k   | 6c l   | 6d m   | 6e n   | 6f o   |
     | 70 p   | 71 q   | 72 r   | 73 s   | 74 t   | 75 u   | 76 v   | 77 w   |
     | 78 x   | 79 y   | 7a z   | 7b {   | 7c |   | 7d }   | 7e ~   | 7f del |

0
 
LVL 6

Accepted Solution

by:
alamo earned 200 total points
ID: 1830768
Here are the printable characters which need to be escaped, and their escape codes:

space = %20
! = %21
" = %22
# = %23
$ = %24
% = %25
& = %26
' = %27
( = %28
) = %29
, = %2C
: = %3A
; = %3B
< = %3C
= = %3D
> = %3E
? = %3F
[ = %5B
\ = %5C
] = %5D
^ = %5E
` = %60
{ = %7B
| = %7C
} = %7D
~ = %7E

Characters less than hex 20 and greater than hex 7e also need to be escaped.

Hope this helps!
0
 
LVL 6

Expert Comment

by:alamo
ID: 1830769
By the way, my source is the javascript escape() function, which I used to empirically derive the above list. Here's the code for a page which will show you the above list plus the codes <0x20 and above 0x7e:

<html> <head><title>escape codes</title></head>
<body><script>
for (var i = 0; i < 256; i++) {
   str = String.fromCharCode(i);
   strEscaped = escape(str);
   if (str != strEscaped ) {
        document.write(str + " " +  "= " + strEscaped+"<br>\n" );
   }
}
</script></body></html>
0

Featured Post

Optimize your web performance

What's in the eBook?
- Full list of reasons for poor performance
- Ultimate measures to speed things up
- Primary web monitoring types
- KPIs you should be monitoring in order to increase your ROI

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This tutorial will discuss the log-in process using WhizBase. In this article I assume you already know HTML. I will write the code using WhizBase Server Pages, so you need to know some basics in WBSP (you might look at some of my other articles abo…
It is becoming increasingly popular to have a front-page slider on a web site. Nearly every TV website,  magazine or online news has one on their site, and even some e-commerce sites have one. Today you can use sliders with Joomla, WordPress or …
Learn the basics of lists in Python. Lists, as their name suggests, are a means for ordering and storing values. : Lists are declared using brackets; for example: t = [1, 2, 3]: Lists may contain a mix of data types; for example: t = ['string', 1, T…
The viewer will learn how to count occurrences of each item in an array.
Suggested Courses

762 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question