Index: H

• command (CPAN.pm) : Reference: h
• command (Perl debugger) : Reference: H
• command (Perl debugger) : Reference: h
• -h option (perlbug) : The perlbug Program
• -h option (perl) : Command-Line Options
• hash mark (#)
• • #! (shebang) line : The Perl Interpreter
  • for comments : Program Structure
  • format fieldholders : Formats
• hash prototype symbol (%) : Prototypes
• hashes
• • Data Types and Variables
  • Hashes
  • functions for processing : Perl Functions by Category
  • special (predefined) : Global Special Arrays and Hashes
• head()
• • LWP modules
  • • LWP::Simple module
    • • Reference: head
      • LWP::Simple
  • Mail::Internet module : Reference: head
  • Net::NNTP module : Reference: head
• Head() (Mail::POP3Client)
• • Reference: Head
  • Counting messages
• =head1 command (pod) : Reference: =head1
• =head2 command (pod) : Reference: =head2
• HeadAndBody() (Mail::POP3Client)
• • Reference: HeadAndBody
  • Retrieving the message body
• header()
• • CGI.pm module
  • • Reference: header
    • The CGI.pm Module
  • HTTP::Headers module : Reference: header
  • HTTP::Message module : Reference: headers
• headers, HTTP : HTTP::Headers
• -height option
• • place geometry manager : The Place Geometry Manager
  • widgets : Common Widget Configuration Options
• hello() (Net::SMTP) : Reference: hello
• HELO command (SMTP) : The SMTP Protocol and the SMTP Session
• help() (Net::SMTP) : Reference: help
• hex() : Reference: hex
• hidden() (CGI.pm) : Reference: hidden
• Hietaniemi, Jarkko : The CPAN Architecture
• -highlightbackground option (widgets) : Common Widget Configuration Options
• -highlightcolor option (widgets) : Common Widget Configuration Options
• -highlightthickness option (widgets) : Common Widget Configuration Options
• history object (PerlScript) : Client-Side PerlScript
• HOME variable : Environment Variables
• host()
• • Mail::Address module
  • • Reference: host
    • Parse Email Addresses with Mail::Address
  • URI::URL module : Reference: host
• Host() (Mail::POP3Client)
• • Reference: Host
  • Getting and setting the host and port
• host_wait() (LWP::RobotUA) : Reference: host_wait
• hostpath (IO::Socket::UNIX) : Reference: hostpath
• HTML (Hypertext Markup Language)
• • tags, generating with CGI.pm : HTML Tag Generation
  • translating pod to
  • • Reference: pod2html
    • Pod::Html
• :html method groups : Importing Method Groups
• HTML modules : The HTML Module
• • HTML::Element module : HTML::Element
  • HTML::FormatPS module : HTML::FormatPS
  • HTML::FormatText module : HTML::FormatText
  • HTML::Parser module
  • • The HTML Module
    • HTML::Parser
  • HTML::TreeBuilder module : HTML::TreeBuilder
• HTTP (Hypertext Transfer Protocol)
• • request messages : LWP Overview
  • Win32::Internet functions for : HTTP Functions
• HTTP() (Win32::Internet) : Reference: HTTP
• HTTP modules
• • HTTP::Cookies module : HTTP::Cookies
  • HTTP::Cookies::Netscape module : HTTP::Cookies::Netscape
  • HTTP::Daemon module : HTTP::Daemon
  • HTTP::Daemon::ClientConn module : HTTP::Daemon::ClientConn methods
  • HTTP::Date module : HTTP::Date
  • HTTP::Headers module : HTTP::Headers
  • HTTP::Message module : HTTP::Message
  • HTTP::Request module
  • • LWP Overview
    • HTTP::Request
  • HTTP::Response module
  • • LWP Overview
    • HTTP::Response
  • HTTP::Status module : HTTP::Status
• HTTP_ACCEPT variable : CGI Environment Variables
• HTTP_COOKIE variable : CGI Environment Variables
• HTTP_FROM variable : CGI Environment Variables
• HTTP_REFERER variable : CGI Environment Variables
• HTTP_USER_AGENT variable : CGI Environment Variables
• hyphen (-)
• • in [...] construct : Character Classes
  • arithmetic negation operator : Unary Operators
  • grid geometry manager placeholder : The grid Geometry Manager
  • Perl debugger command : Reference: -
  • -> (arrow) operator
  • • The Arrow Operator
    • Object Syntax
    • dereferencing with : Arrow dereferencing
  • -= (assignment) operator : Assignment Operators
  • -- (autodecrement) operator : Autoincrement and Autodecrement