Index: H
- ph tool : Using h2ph to Translate C #include Files
- xs tool
- handles : (see filehandles)
- handling signals : (see signals)
- hard links : Introduction
- hashes
-
- Extracting Unique Elements from a List
- Introduction
- adding elements to
- anonymous : Introduction
- of arrays : Making Hashes of Arrays
- arrays and : Introduction
- comparing for keys : Finding Common or Different Keys in Two Hashes
- deleting elements of : Deleting from a Hash
- dutree program : Program: dutree
- finding most common anything : Finding the Most Common Anything
- for list unions, intersections, differences : Finding Elements in One Array but Not Another
- inverting : Inverting a Hash
- merging : Merging Hashes
- multiple values per key : Hashes with Multiple Values Per Key
- presizing : Presizing a Hash
- printing : Printing a Hash
- reading/writing records to file : Reading and Writing Hash Records to Text Files
- references as elements : Hashing References
- references to : Taking References to Hashes
- representing data relationships : Representing Relationships Between Data
- retrieving in insertion order : Retrieving from a Hash in Insertion Order
- slices of : Finding Elements in One Array but Not Another
- sorting elements : Sorting a Hash
- testing for keys : Testing for the Presence of a Key in a Hash
- ties for (examples) : Creating Magic Variables with tie
- traversing : Traversing a Hash
- HEAD method : Introduction
- head( ) (LWP::Simple) : Finding Stale Links
- =head2 pod directive : Documenting Your Module with Pod
- headerfy program (example) : Matching Multiple Lines
- help
-
- documentation conventions : Conventions Used in this tutorial
- Perl references : More information
- pod documentation for modules : Documenting Your Module with Pod
-
- sorting =head1 sections : Program: tkshufflepod
- web references : Introduction
- here documents : Introduction
-
- indenting : Indenting Here Documents
- hex( ) : Converting Between Octal and Hexadecimal
- hexadecimal numbers : Converting Between Octal and Hexadecimal
- Writing a Multiscreen CGI Script :
- high-resolution timers : High-Resolution Timers
- history.db file, grepping : Program: ggh - Grep Netscape Global History
- hiweb program (example) : Writing a CGI Script
- hopdelta program : Program: hopdelta
- hostname, obtaining your own : Finding Your Own Name and Address
- HotKey module : Using POSIX termios
- hours : (see date and time)
- HREF fields, substitutions for : Program: hrefsub
- hrefsub program (example) : Program: hrefsub
- HTML
-
- converting ASCII to/from : Converting ASCII to HTML
- extracting tags : Extracting or Removing HTML Tags
- extracting URLs from : Extracting URLs
- finding stale/fresh links : Finding Stale Links
- formatting, shortcuts in CGI.pm : Formatting Lists and Tables with HTML Shortcuts
- putting links around URLs : Program: urlify
- templates : Creating HTML Templates
- text substitutions : Program: htmlsub
- HTML forms : Introduction
-
- automating submission : Automating Form Submission
- saving/mailing : Saving a Form to a File or Mail Pipe
- sticky widgets : Creating Sticky Widgets
- HTML::Entities module : Converting ASCII to HTML
- HTML::FormatText module : Converting HTML to ASCII
- HTML::LinkExtor module : Extracting URLs
- HTML::TreeBuilder module : Converting HTML to ASCII
- htmlsub program (example) : Program: htmlsub
- HTTP methods
- HTTP, debugging exchanges in : Debugging the Raw HTTP Exchange
- hyperlinks : Introduction
-
- stale/fresh : Finding Stale Links
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