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Index: H

handlers
Apache: 21.. Handlers
sharing information between: 21.13.1. Problem
handlers for signals (see signal handlers)
handles (see filehandles)
hard links: 9.. Introduction
hash-list equivalence: 5.. Introduction
hashes: 4.7.3. Discussion
5.. Introduction
adding elements to: 5.1.1. Problem
10.11.3.2. Mimicking built-ins
anonymous: 11.. Anonymous Data
of arrays: 11.2.1. Problem
arrays and: 5.. Introduction
comparing keys of: 5.12.1. Problem
counting how often something appears: 5.15.3. Discussion
deleting elements of: 5.4.1. Problem
dutree program: 5.17. Program: dutree
finding most common anything: 5.15.1. Problem
initializing: 5.. Introduction
inverting: 5.9.1. Problem
for list unions, intersections, differences: 4.8.3. Discussion
lookups by key or value: 13.15.7. Tie Example: Hash That Allows Lookups by Key or Value
merging: 5.11.1. Problem
multiple values per key: 5.8.1. Problem
presizing: 5.14.1. Problem
printing: 5.6.1. Problem
reading and writing records to file: 11.10.1. Problem
as records: 11.. Records
references as elements: 5.13.2. Solution
references to: 11.3.1. Problem
representing data relationships: 5.16.1. Problem
representing relationships between data: 5.16.2. Solution
retrieving in insertion order: 5.7.1. Problem
slices of: 4.8.3. Discussion
sorting elements: 5.10.1. Problem
testing for keys: 5.2.1. Problem
ties for: 13.15.5. Tie Example: Make a Hash That Always Appends
traversing: 5.5.1. Problem
head( ), finding stale hyperlinks: 20.7.2. Solution
HEAD method: 19.. Behind the Scenes
headers, interrogating with mod_perl: 21.5.1. Problem
here documents: 1.. Introduction
indenting: 1.16.1. Problem
hex( ): 2.15.2. Solution
hexadecimal numbers, converting: 2.15.1. Problem
hidden( ), generating sticky hidden fields: 19.11.3. Discussion
high-resolution timers: 3.9.1. Problem
history.db file, grepping: 14.19. Program: ggh—Grep Netscape Global History
hopdelta program: 3.11. Program: hopdelta
hostnames
identifying at socket end: 17.7.2. Solution
obtaining your own: 17.8.1. Problem
HotKey module: 15.8.3. Description
hours (see date and time values)
h2ph tool, translating C header files: 12.17.1. Problem
hpush( ): 10.11.3.2. Mimicking built-ins
HREF fields, substitutions for: 20.21. Program: hrefsub
hrefsub program: 20.21. Program: hrefsub
HTML
converting ASCII to and from: 20.4.1. Problem
extracting tags: 20.6.1. Problem
extracting URLs from: 20.3.1. Problem
finding stale or fresh links: 20.7.1. Problem
parsing: 20.18.1. Problem
putting links around URLs: 6.21. Program: urlify
shortcuts, formatting lists and tables with: 19.6.1. Problem
tables in, extracting data from: 20.19.1. Problem
templates: 20.9.1. Problem
text substitutions: 20.20. Program: htmlsub
XML and: 22.. Introduction
HTML forms: 19.. HTML and Forms
accessing parameters with mod_perl: 21.6.1. Problem
automating submission: 20.2.1. Problem
Boolean connectives in patterns: 6.18.1. Problem
saving and mailing: 19.12.1. Problem
sticky widgets: 19.10.1. Problem
HTML::FormatText module: 20.5.3. Discussion
HTML::LinkExtor module: 20.3.2. Solution
HTML::Mason module: 21.16.1. Problem
autohandlers: 21.16.3.4. Autohandlers
configuration: 21.16.3.1. Configuration
dhandlers: 21.16.3.5. Dhandlers
21.16.3.5. Dhandlers
Mason syntax: 21.16.3.2. Basic Mason syntax
objects: 21.16.3.3. Objects
htmlsub program: 20.20. Program: htmlsub
HTML::TableContentParser module: 20.19.2. Solution
HTML::TextToHTML module: 20.4.3. Discussion
HTML::TokeParser module: 20.18.3. Discussion
HTTP methods: 19.. Behind the Scenes
19.1.3. Discussion
HTTP::Cookies module: 20.14.3. Discussion
HTTP::Response module: 20.1.3. Discussion
h2xs tool: 12.9.2. Solution
making a module with C code: 12.18.1. Problem
hyperlinks
clearing link list: 20.3.3. Discussion
extracting from HTML: 20.3.1. Problem
finding stale or fresh: 20.7.1. Problem
hyphen (-)
-0 command-line option: 8.. Basic Operations
-a command-line option, writing filters: 7.14.3.2. Command-line options
-e command-line option, writing filters: 7.14.3.2. Command-line options
-> (arrow) operator: 11.. References
13.. Methods
-> (infix) notation: 11.. References
-i command-line option
modifying files with: 7.16.2. Solution
writing filters: 7.14.3.2. Command-line options
-I command-line switch: 12.8.2. Solution
-n command-line option, writing filters: 7.14.3.2. Command-line options
-p command-line option
modifying files with: 7.16.2. Solution
writing filters: 7.14.3.2. Command-line options
-t command-line option: 15.2.2. Solution


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