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Index: D

• ^D (Control-D) as eof: Generating Perl in Other Languages
• Control-D as eof: Generating Perl in Other Languages
• Control-D character: Other Literal Tokens
• • Other Literal Tokens
• -d (debug) command-line switch: Switches
• • Switches
  • The Perl Debugger
• -D (debugging) command-line switch: Switches
• d for digit=\d (for digit): Regular Expressions
• /d modifier: The tr/// Operator (Transliteration)
• /d pattern modifier: The tr/// Operator (Transliteration)
• -d switch, perl: The Perl Profiler
• daemons
• • Perl modules for: The CPAN modules Directory
  • taint mode, importance of enabling for: Handling Insecure Data
• data
• • byte-oriented vs. character-oriented: Unicode
  • fixed-length, functions for: Perl Functions by Category
  • insecure, handling: Handling Insecure Data
  • • code masquerading as data: Code Masquerading as Data
    • command and file access under reduced privileges: Accessing Commands and Files Under Reduced Privileges
    • detecting and laundering tainted data: Detecting and Laundering Tainted Data
    • environment, cleaning up: Cleaning Up Your Environment
  • screen dump, providing: Perl Language Extensions and Internals
• data access
• • threads: Data Access
  • • condition variables: Condition variables
    • deadlock: Deadlock
    • locking methods: Locking methods
    • locking subroutines: Locking subroutines
    • synchronizing with lock: Synchronizing access with lock
    • unlocking: Synchronizing access with lock
• DATA filehandle: Special Variables in Alphabetical Order
• data organization in Perl: Common Mistakes
• data structures: Data Structures
• • The CPAN modules Directory
  • arrays of hashes: Arrays of Hashes
  • complex, representing as scalars: Complexities
  • flat, linear in Perl: References
  • hashes of arrays: Hashes of Arrays
  • hashes of functions: Hashes of Functions
  • multidimensional hashes: Hashes of Hashes
  • objects (see objects)
  • persistent, providing via tie: Tie Modules on CPAN
  • records of elaborate: More Elaborate Records
  • references to: What Is a Reference?
  • saving: Saving Data Structures
  • self-referential, container classes holding pointers to: Garbage Collection with DESTROY Methods
  • stringifying: Saving Data Structures
• __DATA__ token: Other Literal Tokens
• • Special Variables in Alphabetical Order
• data types: Variable Syntax
• • built-in: Built-in Data Types
  • converting between C and Perl: Fiddling with the Perl Stack from C
  • internal, Perl and C: Internal Data Types
  • modules for: Data Types
  • scalars (see scalars)
  • TYPE declarations in Perl: my
  • typeglobs: Typeglobs and Filehandles
• databases
• • Data Base Management (see DBM files)
  • Perl connections to: Pattern Matching
  • Perl modules for operating: The CPAN modules Directory
  • see also DBI: The CPAN modules Directory
  • tying hash variables to: Tied Variables
• Data::Dumper: Saving Data Structures
• • Perl Language Extensions and Internals
  • • Data::Dumper
• datagrams: Sockets
• date function (see localtime function)
• dates, Perl modules for: The CPAN modules Directory
• dates, portability of: Dates and Times
• DB module: Perl Language Extensions and Internals
• DB package, caller function: caller
• DBD (Database drivers)
• • Perl modules for: The CPAN modules Directory
• DB_File module: DBM Interfaces
• • Data::Dumper module, using with: Data::Dumper
• DBI (Database Interface), Perl modules for: The CPAN modules Directory
• • complex data values, storing in: Data::Dumper
  • dbmclose and dbmopen functions: dbmclose
  • deleting from: delete
  • locking: File Locking
  • modules for: DBM Interfaces
  • storing complex data values in: Tie Modules on CPAN
• DBM modules, portability of: Standard Modules
• dbmclose function: Tied Variables
• dbmopen function: Tied Variables
• • use declarations with: Tied Variables
• dbprofpp program: The Perl Profiler
• deadlock in threads: Deadlock
• deallocating memory: Garbage Collection, Circular References, and Weak References
• debugging: Switches
• • The Perl Debugger
  • Handling Insecure Data
  • (see also taint)
  • backend modules for: Compiler Backends
  • bug reports: Bug Reports
  • controlling from programs: Using the Debugger
  • DB module: Perl Language Extensions and Internals
  • debug level, setting through class or instances: Managing Class Data
  • debugger code, command for loading: Environment Variables
  • debugger commands, Perl: Debugger Commands
  • debugger customization: Debugger Customization
  • • options: Debugger Options
  • debugging flags: Special Variables in Alphabetical Order
  • debugger support, Perl: Debugger Support
  • debugger, unattended execution: Unattended Execution
  • Devel::Peek module for XS programs: Perl Language Extensions and Internals
  • global destruction of objects other references, controlling: Environment Variables
  • overloading: Overloading Diagnostics
  • Perl, using C compiler -DDEBUGGING option: Class Inheritance
  • turning on in tied filehandle: Filehandle-Tying Methods
  • Unix security bugs: Unix Kernel Security Bugs
• decimal points, lining up: Formats
• declarations: Getting Started
• • Statements and Declarations
  • structs: Generating Classes with Class::Struct
  • fields with use fields pragma: Field Declarations with use fields
  • global: Global Declarations
  • global variables, lexically scoped: Lexically Scoped Global Declarations: our
  • methods, lvalues, indicating return of: New Tricks
  • packages: Simplicities
  • • Scoped Declarations
    • Packages
    • package
  • scoped: Scoped Declarations
  • subroutines: Global Declarations
  • • with definitions: Syntax
  • use declarations: Simplicities
  • variables: Statements and Declarations
  • • Scoped Variable Declarations
• declarative approach, regular expression developing: Programmatic Patterns
• declaring
• • formats: Formats
  • subroutines: sub
  • • without defining: Syntax
• decomposing characters into simpler ones: Standard Unicode properties
• decompressing CPAN modules: Decompressing and Unpacking CPAN Modules
• decrementing variables: Unary Arithmetic Operators
• decryption (see encryption)
• default package: Scoped Declarations
• DEFAULT pseudosignal: Signals
• defined function: defined
• defining subroutines: Semantics
• • classes (object-oriented modules as): Using Modules
  • subroutines
  • • declarations vs.: Global Declarations
    • loading from other files: Global Declarations
    • loading with AUTOLOAD: Autoloading
• DEL in hexadecimal: String Literals
• delete function: delete
• • tied arrays, not returning deleted value for: Previous Perl Traps
• deleting
• • all debugger actions: Actions and Command Execution
  • array elements: pop
  • • shift
    • splice
  • breakpoints: Breakpoints
  • characters: chomp
  • directories: rmdir
  • • unlink
  • files: unlink
  • found but unreplaced characters: The tr/// Operator (Transliteration)
  • hash elements: delete
• • pattern-matching operators and: Pattern-Matching Operators
• denial-of-service problems (patterns and regular expressions), security concerns: Code Masquerading as Data
• dereference-address operator (*), C language: Operators Missing from Perl
• dereference operators, overloading: Overloadable Operators
• dereferencing: What Is a Reference?
• • What Is a Reference?
  • Using Hard References
  • Using a Variable as a Variable Name
  • Using the Arrow Operator
  • array elements: Access and Printing
  • hash values as functions: Hashes of Functions
  • operator for (see arrow operator)
  • typeglobs: Symbol Tables
• derived classes: Brief Refresher on Object-Oriented Lingo
• • methods as wrappers around base class methods: Accessing Overridden Methods
• descriptors (see file descriptors)
• destroying threads
• • detach method: The detach method
  • join method: Thread destruction
• destructors: Instance Destructors
• • controlling: Environment Variables
  • garbage collection with: Garbage Collection with DESTROY Methods
  • shared memory and semaphore: System V IPC
• detach method: The detach method
• $dev file statistic: stat
• Devel::Dprof module: The Perl Profiler
• • profiling subroutine execution with: The Perl Profiler
• development support, modules for: The CPAN modules Directory
• Devel::Peek module: Perl Language Extensions and Internals
• Devel::SelfStubber module: Module Installation Support
• Devel::SmallProf module: The Perl Profiler
• diagnostic messages (see error messages[semi] warning messages)
• diagnostics module: Perl Language Extensions and Internals
• die function: die
• • exit function versus: exit
  • quit signal handling and: Signals
• dieLevel option (debugger): Debugger Options
• digits: Regular Expressions
• • in names: Names
• directives (pod): Pod Directives
• directories
• • changing working: chdir
  • closing: closedir
  • creating: mkdir
  • creating or removing portably: Filenames, Filesystems, and File Locking
  • current working, getting pathname of: Filenames, Filesystems, and File Locking
  • deleting: rmdir
  • • unlink
  • DirHandle module: Filehandle, Directory Handle, and Stream I/O Utilities
  • file test checks on trees: Filenames, Filesystems, and File Locking
  • file test operator: Some File Test Operators
  • functions dealing with: Perl Functions by Category
  • IO::Dir module: Filehandle, Directory Handle, and Stream I/O Utilities
  • opendir function: opendir
  • Perl modules for: The CPAN modules Directory
  • prepending to @INC: Switches
  • reading entries from: readdir
  • rewinddir function: rewinddir
  • root, redefining: chroot
  • seekdir function: seekdir
• disciplines: open
• • filehandles, setting up with binmode: binmode
• division (see multiplicative operators)
• DNS (domain name server): Sockets
• do { }: Terms and List Operators (Leftward)
• • BLOCK: Simple Statements
  • • do (block)
    • iterating: Bare Blocks
    • terminating: Bare Blocks
  • loop controls: Simple Statements
  • • Bare Blocks
  • FILE operator: do (file)
  • loops: Universal Blunders
  • SUBROUTINE operator: Simple Statements
  • • do (subroutine)
• doc directory (CPAN), official Perl manpages: CPAN
• documentation
• • tutorials on Perl: Offline Documentation
  • bug reports: Bug Reports
  • C library functions: Functions
  • default system viewer, calling: Miscellaneous Commands
  • embedded in Perl programs: Plain Old Documentation
  • • (see also pod)
  • modules for: Documentation Support
  • Perl manpages: Online Documentation
  • standard modules: Modules
• dollar sign ($) (see $)
• dosish.h file: #! and Quoting on Non-Unix Systems
• double-ended pipe, opening with tied filehandle: Creative Filehandles
• double-quote context: Interpolative Context
• • scalar variables, expanding in: The s/// Operator (Substitution)
• double-quoted strings, interpolation and concatenation: String Operators
• double quotes (") Singularities
• • replacement string, use with: The s/// Operator (Substitution)
  • strings, use in: Singularities
  • translation escape processing: When backslashes happen
• down method: Semaphores
• DProf (see Devel::Dprof module)
• dump function: dump
• Dumpvalue module: Perl Language Extensions and Internals
• duplicate replaced characters, eliminating: The tr/// Operator (Transliteration)
• DynaLoader: Creating Extensions
• • Autoloading
  • Module Installation Support
• dynamic linking: XS and XSUBs
• • C source code from Perl: Extending Perl (Using C from Perl)
• dynamic scoping: Scoped Declarations
• • Scoped Variable Declarations
  • Scoped Variable Declarations
  • local operator, using on global variables: Dynamically Scoped Variables: local
  • pattern variables: Pattern-Matching Operators
  • • The s/// Operator (Substitution)

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