Index

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# R

\r (carriage return)

Perl (UNIX, Windows, Macintosh)
Multipart Forms

R command (debugger) : Debugger Commands
-R file test operator : Named Unary and File Test Operators
-r file test operator : Named Unary and File Test Operators
radio buttons

Radio Buttons and Checkboxes
Radio Buttons
Backward radio and checkbox arrays
<input type=radio>
Radio buttons
Radio Object
multiple-choice questions : Quiz/Test Form Application

Radio element

Radio.defaultChecked
Radio Object
Form Elements
Form Element Names and Values
Naming Forms and Form Elements
Radio
Radio.blur()
Radio.checked
Radio.click()
Radio.focus()
Radio.form
Radio.name
Radio.onblur()
Radio.onclick()
Radio.onfocus()
Radio.type
Radio.value

rand function : rand
random( )

Math Object
Core Language Changes
Math.random()

random

hypertext links

Random Links
A random URL generator
The Link Object

numbers

rand
srand

range (..) operator

Range Operator
Awk Traps

Range header : Range
RDB : Utilities and Applications
RDBMS (see relational databases)
$rdev file statistic : stat
read function : read
read-only objects : The assign() Method
readdir function

readdir
DirHandle--Supply Object Methods fo...
Time Efficiency

reading

array elements : Reading and Writing Array Elements
client state : Read and Write Client State with Cookies
cookies : Reading Cookies
data via low-level system call : sysread
files

Examples
What JavaScript Can't Do

input (awk) : Awk Traps
object properties : Reading and Writing Object Properties
permissions for processes : IPC::Open2--Open a Process for Both...
shared memory segment ID : shmread

Readline module : Readline Support
readlink function : readlink
ReadlKey module : Readline Support
ready file descriptors : select (ready file descriptors)
real gid (see $( variable)
real uid (see $< variable)
real values, testing for with defined : defined
$REAL_GROUP_ID (see $( variable)
$REAL_USER_ID (see $<)
records (see $/ variable)

input, separator for (see $/ variable)
output, separator for (see $\ variable)
variable-length : Formats
of various data structures : More Elaborate Records

rectangular image map area : The coords attribute
recursive

open functions : open
use of subroutines : Subroutines

recv function : recv
Redirect header : Combining Refresh with Other HTTP H...
redirection (see server redirection)
redirection HTTP status codes

Redirection
Client Request Incomplete

redo operator

Loop control
redo

redundant HTML tags : Ignored or Redundant Tags
ref function

ref
Other Tricks You Can Do with Hard R...

references

Primitive Types and Reference Types
The src attribute
Embedded Versus Referenced Content
What Is a Reference?
checking for : ref
circular, and memory : A Note on Garbage Collection
comparing by : Equality (==)
counting

Core Language Features
Reference Counting in Navigator 3.0

dangling

Dangling references
Workarounds for Navigator 2.0

to filehandles : Filehandle Referencers
inline

Inline References

multidimensional arrays and : A Brief Tutorial: Manipulating List...
to objects : Using Object Methods
objects as : An Object Is Simply a Referenced Thingy
passing : Passing References
use strict 'refs' : strict--Restrict Unsafe Constructs

Referer header : Referer
referral servers : Where Did You Come From?
referrer property

Document Properties
Document.referrer
Properties

Refresh header

CGI and Response Headers
Client Pull
Uniquely Refreshing
Cycling among documents

refresh( )

Miscellaneous Changes
Navigator.plugins.refresh()

refreshing browsers : Client Pull
regenerated documents : Event handlers in regenerated documents
regexes, regexps (see regular expressions)
regsub function : Tcl
regular expressions

Regular Expressions
Regular Expressions
Core Language Features
Regular Expressions
Summary of Regular Expressions
Perl (UNIX, Windows, Macintosh)
backreferences : Backreferences
character classes : Regular Expressions
extension syntax for : Regular expression extensions
matching precedence : The rules of regular expression matching
special variables for : Regular Expression Special Variables

rel attribute

<a>

Attributes
The rel and rev attributes

<link>

Attributes
Internet Explorer HTML Exclusives
The rel and rev attributes

relational databases

Relational Databases
Accessing a Sybase Database

relational operators

Relational Operators
(see also comparison operators)

relationships

between HTML documents

Establishing Document Relationships
How browsers might use <link...

between hyperlinks : The rel and rev attributes

relative

font size

The size attribute

frame sizes : The rows and cols attributes
URLs

URLs
Absolute and Relative URLs
Using relative URLs
Uniform Resource Locators (URLs)

reload( )

Methods
The Location Object
The Location Object
Location.reload()

remainder (%) operator : Modulo (%)
REMOTE_ADDR environment variable

CGI Environment Variables
How can I tell what user/host/brows...
Using Environment Variables
Restricting Access for Specified Domains

REMOTE_HOST environment variable

CGI Environment Variables
How can I tell what user/host/brows...
Perl (UNIX, Windows, Macintosh)
Using Environment Variables
Restricting Access for Specified Domains
C/C++ decoding using libcgi

REMOTE_IDENT environment variable

CGI Environment Variables
How can I tell what user/host/brows...
Using Environment Variables

REMOTE_USER environment variable

CGI Environment Variables
How can I tell what user/host/brows...
Using Environment Variables
User Authentication and Identification

removeMember( ) : JSObject.removeMember()
removing (see deleting)
rename function : rename
repetition (x) operator

String Operators
Multiplicative Operators

replace functions, Perl : Search and Replace Functions
replace( )

Methods
The Location Object
The Location Object
Location.replace()

replacement, image (see images and graphics)
replacing array elements : splice
Reply-To header : I want the user to fill in a form a...
Request object : Server-Side JavaScript
Request.pm module : Request.pm
REQUEST_METHOD environment variable

CGI Environment Variables
Using Environment Variables
The GET and POST Methods

require command : Socket Library
require function : Modules
require operator

Global Declarations
Global Special Arrays
require

REs (see regular expressions)
reserve( ) : Array Methods
reserved characters (see special characters)
reserved words

Variables
Reserved Words
special numeric constants : Special Numeric Values

reset( )

Methods
Forms and Form Elements
The Form Object
Form.reset()
reset

reset buttons (Reset elements)

<input type=reset>
Reset buttons
Reset Object
The Form Object
Submit and Reset Buttons
Reset buttons
Reset Object
Form Elements
Reset
Reset.blur()
Reset.click()
Reset.focus()
Reset.form
Reset.name
Reset.onblur()
Reset.onclick()
Reset.onfocus()
Reset.type
Reset.value

resizing documents : Content disappears upon resize
resizing images : Resizing and flood-filling images
resolution, image : Other Image Properties
resources

Official Netscape Documentation
Recommended Books

<response> tag : Quiz/Test Form Application
response codes, HTTP : Server Response Codes
Response.pm module : Response.pm
restoring filehandles : SelectSaver--Save and Restore Selec...
Retry-After header : Retry-After
return statement

return
Defining and Invoking Functions
return

return value subroutine : Subroutines
reusing code

Thinking of Code Reuse
Programming with Style

rev attribute

<a>

The rel and rev attributes
Attributes

<link> tag : Attributes

reverse function : reverse
reverse( )

Methods
Array.reverse()

rewind( ) : LiveVideo
rewinddir function

rewinddir
DirHandle--Supply Object Methods fo...

right alignment (see align attribute)
right angle bracket (see >)
right justification : Format Variables
right-shift (>>) operator : Shift Operators
rightmargin attribute, <body> : Internet Explorer HTML Exclusives
rindex function : rindex
RLENGTH variable (awk) : a2p
rmdir function : rmdir
rmtree( ) : File::Path--Create or Remove a Seri...
root directory, redefining : chroot
round( )

Math Object
Math.round()

rounding numbers : Math Object
routines (see subroutines)
rows

in frames : Frame Layout
table

The <tr> Tag
Cell Spanning
(see also tables)

(see also record)

rows attribute

<frameset>

Attributes
Frame Layout
The rows and cols attributes

<textarea>

Attributes
The rows and cols attributes

rowspan attribute (<td> and <th>)

The rowspan attribute
Attributes
Cell Spanning

$RS (see $/ variable)
RSTART variable (awk) : a2p
rules (see horizontal rules)
rules attribute (<table>)

Attributes
Internet Explorer Tables
Internet Explorer HTML Exclusives

running (see executing)
runtests( ) : Test::Harness--Run Perl Standard Te...

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