Index: D

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## Index: D

-d file test operator: 9.7.3. Discussion
daemon servers: 16.23. Program: sigrand
  17.17.1. Problem
data, relationships between
  5.16.1. Problem
  (see also variables)
data structures
  binary trees: 11.17. Program: Binary Trees
  circular, coping with, using weak references: 11.15.1. Problem
  complex, creating on the fly: 11.. Anonymous Data
  copying: 11.12.1. Problem
  outlines: 11.16. Program: Outlines
  parsing XML into: 22.1.1. Problem
  printing: 11.11.1. Problem
  storing to disk: 11.13.1. Problem
  transparently persistent: 11.14.1. Problem
__DATA__ token: 7.12.2. Solution
data types
  circular data structures: 13.13.1. Problem
  classes as structs: 13.5.1. Problem
database access: 14.. Introduction
  DBM files
    converting between: 14.3.1. Problem
    emptying: 14.2.1. Problem
    making and using: 14.1.1. Problem
    merging: 14.4.1. Problem
    sorting: 14.5.1. Problem
    storing complex data in: 14.6.1. Problem
  dealing with errors: 14.11.1. Problem
  ggh program: 14.19. Program: ggh—Grep Netscape Global History
  persistent data: 14.7.1. Problem
  speeding up with mod_perl: 21.8.1. Problem
  SQL: 20.9.3. Discussion
    queries: 14.9.1. Problem
      14.14.1. Problem
      19.6.3. Discussion
  using transactions: 14.15.1. Problem
  viewing data one page at a time: 14.16.1. Problem
Data::Dumper module: 11.11.2. Solution
datagram sockets: 17.4.3. Discussion
date and time values: 3.. Introduction
  arithmetic with: 3.4.1. Problem
  converting to and from Epoch seconds: 3.2.1. Problem
  Date::DateCalc: 3.4.1. Problem
  Date::Manip module: 3.8.3. Discussion
    3.11. Program: hopdelta
  days, calculating: 3.6.1. Problem
    number between two dates: 3.5.1. Problem
  file access timestamps: 9.1.1. Problem
  high-resolution timers: 3.9.1. Problem
  hopdelta program: 3.11. Program: hopdelta
  parsing information from strings: 3.7.1. Problem
  printing: 3.8.1. Problem
  seconds passed since Epoch: 3.. Introduction
  sleeps: 3.10.1. Problem
  sorting mail by: 10.18. Program: Sorting Your Mail
  Time::gmtime module: 3.3.2. Solution
  Time::HiRes module: 3.9.2. Solution
  Time::Local module: 3.2.2. Solution
  Time::timelocal module: 3.3.2. Solution
  timing out operations: 16.21.1. Problem
  today's date, finding: 3.1.1. Problem
  years: 3.. Introduction
DateCalc( ): 3.11. Program: hopdelta
Date::Calc module: 3.4.2. Solution
  3.6.2. Solution
Date::DateCalc module: 3.. Introduction
Date::Manip module: 3.. Introduction
  3.7.2. Solution
  3.11. Program: hopdelta
day, month, year, hour, minute, seconds (DMYHMS): 3.. Introduction
Day_of_week( ): 3.6.2. Solution
Day_of_Year( ): 3.6.2. Solution
days (see date and time values)
DBD module: 14.9.2. Solution
DBD::CSV module: 14.17.2. Solution
DBD::SQLite module: 14.. Introduction
  14.18.2. Solution
DB_File module: 11.14.2. Solution
  DB_RECNO access method: 8.8.2. Solution
  sorting large DBM files: 14.5.2. Solution
db2gdbm program: 14.3.2. Solution
DBI module: 14.9.2. Solution
DBIx::Dump module: 14.8.2. Solution
DBM files
  complex data in: 14.6.1. Problem
  converting between: 14.3.1. Problem
  emptying: 14.2.1. Problem
  GDBM files: 14.3.2. Solution
  making and using: 14.1.1. Problem
  merging: 14.4.1. Problem
  sorting: 14.5.1. Problem
DBM libraries: 14.. Introduction
dclone( ): 11.12.2. Solution
  13.7.2. Solution
debugging
  CGI scripts: 19.. Behind the Scenes
    19.3.3.3. Is the script valid Perl?
  raw HTTP exchange: 19.8.1. Problem
deep copies: 11.12.3. Discussion
default values for variables: 1.2.1. Problem
defined operator: 1.2.3. Discussion
definedness: 1.. Introduction
  1.2.3. Discussion
deg2rad( ): 2.10.3. Discussion
delaying module loading: 12.3.1. Problem
delete( ): 5.4.2. Solution
  compared to undef( ): 5.4.3. Discussion
  multiple hash key values: 5.8.3. Discussion
deleting
  clearing the screen: 15.3.1. Problem
  directories and their contents: 9.8.1. Problem
  DOS shell window: 15.17.1. Problem
  emptying DBM files: 14.2.1. Problem
  files: 9.2.1. Problem
    last line of: 8.10.1. Problem
  hash elements: 5.4.1. Problem
  HTML tags from strings: 20.6.1. Problem
  selected subroutine return values: 10.8.1. Problem
  whitespace at string ends: 1.19.1. Problem
delimiters: 1.. Introduction
Delta_Days( ): 3.5.3. Discussion
Delta_DHMS( ): 3.5.3. Discussion
dequote( ): 1.16.3. Discussion
dereferencing (see references)
destructors: 13.. Methods
  13.2.1. Problem
Devel::Peek module: 11.15.3. Description
diacritics: 1.8.3. Discussion
  converting case and: 1.13.3. Discussion
dialog boxes with Tk toolkit: 15.15.1. Problem
DialogBox widget, Tk: 15.15.2. Solution
die function: 10.12.2. Solution
__DIE__ signal: 16.15.3. Discussion
differences of lists: 4.8.1. Problem
  computing: 4.9.1. Problem
  simple and symmetric: 4.9.3. Discussion
directories: 9.. Introduction
  copying and moving files: 9.3.1. Problem
  deleting: 9.8.1. Problem
  deleting files: 9.2.1. Problem
  multiple names for same file: 9.4.1. Problem
  of modules: 12.8.1. Problem
  parsing filenames: 9.10.1. Problem
  processing all files in: 9.5.1. Problem
    recursively: 9.7.1. Problem
  recursively duplicating: 9.12. Program: symirror
  renaming files: 9.9.1. Problem
  sorting contents of: 9.. Introduction
    9.13. Program: lst
  timestamps: 9.1.1. Problem
directory handles: 9.. Executive Summary
dirname( ): 9.10.3. Discussion
disk usage, library: 14.. Introduction
Distinguished Name (DN): 18.8.3. Discussion
DMYHMS (day, month, year, hour, minute, seconds): 3.. Introduction
DMYHMS values (see date and time values)
DN (Distinguished Name): 18.8.3. Discussion
DNS lookups: 18.1.1. Problem
do( ): 10.. Introduction
  configuration files, reading: 8.16.3. Discussion
  finding number of rows returned by SQL queries: 14.14.2. Solution
Document Object Model (DOM): 22.. History of Perl and XML
dollar sign ($)
  $1, $2, . . . (backreferences): 1.11.3. Discussion
    6.. Special Variables
    finding doubled words: 6.16.2. Solution
  $| variable: 7.. I/O Operations
    7.19.2. Solution
  $* variable (deprecated): 6.. Pattern-Matching Modifiers
  $& variable: 1.11.3. Discussion
    6.. Special Variables
  $#ARRAY variable: 4.3.2. Solution
  $^F variable: 12.7.3. Discussion
  hashes: 5.. Introduction
  $^I variable: 7.16.3. Discussion
  $^O variable: 7.25. Program: lockarea
    9.10.3. Discussion
  $VERSION variable (use pragma): 12.1.3. Discussion
  $^W variable: 12.14.3. Discussion
DOM (Document Object Model): 22.. History of Perl and XML
  trees: 22.. History of Perl and XML
    building while validating XML: 22.5.3. Discussion
    parsing XML into: 22.2.1. Problem
domains for sockets: 17.. Introduction
DOS shell window, removing: 15.17.1. Problem
dot (.)
  . . and . . . range operators: 6.8.2. Solution
  periods in numbers: 2.16.1. Problem
double quote ("): 1.. Introduction
  escaping: 14.10.1. Problem
double words, finding: 6.16.1. Problem
du command, sorting output of: 5.17. Program: dutree
Dump( ): 11.15.3. Description
Dumpvalue module: 5.6.3. Discussion
duplicate list elements, extracting: 4.7.1. Problem
dutree program: 5.17. Program: dutree
dynamic scoping: 10.13.3.3. Using local( ) on parts of aggregates

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