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/se3-unattended/var/se3/unattended/install/linuxaux/opt/perl/lib/5.10.0/pod/ -> Functions.pm (source)

   1  package Pod::Functions;
   2  use strict;
   4  =head1 NAME
   6  Pod::Functions - Group Perl's functions a la perlfunc.pod
   8  =head1 SYNOPSIS
  10      use Pod::Functions;
  12      my @misc_ops = @{ $Kinds{ 'Misc' } };
  13      my $misc_dsc = $Type_Description{ 'Misc' };
  15  or
  17      perl /path/to/lib/Pod/Functions.pm
  19  This will print a grouped list of Perl's functions, like the 
  20  L<perlfunc/"Perl Functions by Category"> section.
  22  =head1 DESCRIPTION
  24  It exports the following variables:
  26  =over 4
  28  =item %Kinds
  30  This holds a hash-of-lists. Each list contains the functions in the category
  31  the key denotes.
  33  =item %Type
  35  In this hash each key represents a function and the value is the category.
  36  The category can be a comma separated list.
  38  =item %Flavor
  40  In this hash each key represents a function and the value is a short 
  41  description of that function.
  43  =item %Type_Description
  45  In this hash each key represents a category of functions and the value is 
  46  a short description of that category.
  48  =item @Type_Order
  50  This list of categories is used to produce the same order as the
  51  L<perlfunc/"Perl Functions by Category"> section.
  53  =back
  55  =head1 CHANGES
  57  1.02 20020813 <abe@ztreet.demon.nl>
  58      de-typo in the SYNOPSIS section (thanks Mike Castle for noticing)
  60  1.01 20011229 <abe@ztreet.demon.nl>
  61      fixed some bugs that slipped in after 5.6.1
  62      added the pod
  63      finished making it strict safe
  65  1.00 ??
  66      first numbered version
  68  =cut
  70  our $VERSION = '1.03';
  72  require Exporter;
  74  our @ISA = qw(Exporter);
  75  our @EXPORT = qw(%Kinds %Type %Flavor %Type_Description @Type_Order);
  77  our(%Kinds, %Type, %Flavor);
  79  our %Type_Description = (
  80      'ARRAY'    => 'Functions for real @ARRAYs',
  81      'Binary'    => 'Functions for fixed length data or records',
  82      'File'    => 'Functions for filehandles, files, or directories',
  83      'Flow'    => 'Keywords related to control flow of your perl program',
  84      'HASH'    => 'Functions for real %HASHes',
  85      'I/O'    => 'Input and output functions',
  86      'LIST'    => 'Functions for list data',
  87      'Math'    => 'Numeric functions',
  88      'Misc'    => 'Miscellaneous functions',
  89      'Modules'    => 'Keywords related to perl modules',
  90      'Network'    => 'Fetching network info',
  91      'Objects'    => 'Keywords related to classes and object-orientedness',
  92      'Process'    => 'Functions for processes and process groups',
  93      'Regexp'    => 'Regular expressions and pattern matching',
  94      'Socket'    => 'Low-level socket functions',
  95      'String'    => 'Functions for SCALARs or strings',
  96      'SysV'    => 'System V interprocess communication functions',
  97      'Time'    => 'Time-related functions',
  98      'User'    => 'Fetching user and group info',
  99      'Namespace'    => 'Keywords altering or affecting scoping of identifiers',
 100  );
 102  our @Type_Order = qw{
 103      String
 104      Regexp
 105      Math
 106      ARRAY
 107      LIST
 108      HASH
 109      I/O
 110      Binary
 111      File
 112      Flow
 113      Namespace
 114      Misc
 115      Process
 116      Modules
 117      Objects
 118      Socket
 119      SysV
 120      User
 121      Network
 122      Time
 123  };
 125  while (<DATA>) {
 126      chomp;
 127      s/#.*//;
 128      next unless $_;
 129      my($name, $type, $text) = split " ", $_, 3;
 130      $Type{$name} = $type;
 131      $Flavor{$name} = $text;
 132      for my $t ( split /[,\s]+/, $type ) {
 133          push @{$Kinds{$t}}, $name;
 134      }
 135  }
 137  close DATA;
 139  my( $typedesc, $list );
 140  unless (caller) { 
 141      foreach my $type ( @Type_Order ) {
 142      $list = join(", ", sort @{$Kinds{$type}});
 143      $typedesc = $Type_Description{$type} . ":";
 144      write;
 145      } 
 146  }
 148  format = 
 150  ^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
 151      $typedesc 
 152  ~~ ^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
 153      $typedesc 
 154   ~~  ^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
 155      $list
 156  .
 158  1;
 160  __DATA__
 161  -X    File    a file test (-r, -x, etc)
 162  abs    Math    absolute value function
 163  accept    Socket    accept an incoming socket connect
 164  alarm    Process    schedule a SIGALRM 
 165  atan2    Math    arctangent of Y/X in the range -PI to PI
 166  bind    Socket    binds an address to a socket
 167  binmode    I/O    prepare binary files for I/O
 168  bless    Objects    create an object 
 169  caller    Flow,Namespace    get context of the current subroutine call
 170  chdir    File    change your current working directory
 171  chmod    File    changes the permissions on a list of files
 172  chomp    String     remove a trailing record separator from a string
 173  chop    String     remove the last character from a string
 174  chown    File    change the owership on a list of files
 175  chr    String     get character this number represents
 176  chroot    File    make directory new root for path lookups
 177  close    I/O    close file (or pipe or socket) handle
 178  closedir    I/O    close directory handle
 179  connect    Socket    connect to a remote socket
 180  continue    Flow    optional trailing block in a while or foreach 
 181  cos    Math    cosine function
 182  crypt    String    one-way passwd-style encryption
 183  dbmclose    Objects,I/O    breaks binding on a tied dbm file
 184  dbmopen    Objects,I/O    create binding on a tied dbm file
 185  defined    Misc    test whether a value, variable, or function is defined
 186  delete    HASH    deletes a value from a hash
 187  die    I/O,Flow    raise an exception or bail out
 188  do    Flow,Modules    turn a BLOCK into a TERM
 189  dump    Misc,Flow    create an immediate core dump
 190  each    HASH    retrieve the next key/value pair from a hash
 191  endgrent    User    be done using group file
 192  endhostent    User    be done using hosts file
 193  endnetent    User    be done using networks file
 194  endprotoent    Network    be done using protocols file
 195  endpwent    User    be done using passwd file
 196  endservent    Network    be done using services file
 197  eof    I/O    test a filehandle for its end
 198  eval    Flow,Misc    catch exceptions or compile and run code
 199  exec    Process    abandon this program to run another
 200  exists    HASH    test whether a hash key is present
 201  exit    Flow    terminate this program
 202  exp    Math    raise I<e> to a power
 203  fcntl    File    file control system call
 204  fileno    I/O    return file descriptor from filehandle
 205  flock    I/O    lock an entire file with an advisory lock
 206  fork    Process    create a new process just like this one
 207  format    I/O    declare a picture format with use by the write() function
 208  formline    Misc    internal function used for formats
 209  getc    I/O    get    the next character from the filehandle
 210  getgrent    User    get next group record 
 211  getgrgid    User    get group record given group user ID
 212  getgrnam    User    get group record given group name
 213  gethostbyaddr    Network    get host record given its address
 214  gethostbyname    Network    get host record given name
 215  gethostent    Network    get next hosts record 
 216  getlogin    User    return who logged in at this tty
 217  getnetbyaddr    Network    get network record given its address
 218  getnetbyname    Network    get networks record given name
 219  getnetent    Network    get next networks record 
 220  getpeername    Socket    find the other end of a socket connection
 221  getpgrp    Process    get process group
 222  getppid    Process    get parent process ID
 223  getpriority    Process    get current nice value
 224  getprotobyname    Network    get protocol record given name
 225  getprotobynumber    Network    get protocol record numeric protocol
 226  getprotoent    Network    get next protocols record
 227  getpwent    User    get next passwd record
 228  getpwnam    User    get passwd record given user login name
 229  getpwuid    User    get passwd record given user ID
 230  getservbyname    Network    get services record given its name
 231  getservbyport    Network    get services record given numeric port
 232  getservent    Network    get next services record 
 233  getsockname    Socket    retrieve the sockaddr for a given socket
 234  getsockopt    Socket    get socket options on a given socket
 235  glob    File        expand filenames using wildcards
 236  gmtime    Time    convert UNIX time into record or string using Greenwich time
 237  goto    Flow    create spaghetti code
 238  grep    LIST    locate elements in a list test true against a given criterion
 239  hex    Math,String    convert a string to a hexadecimal number
 240  import    Modules,Namespace    patch a module's namespace into your own
 241  index    String    find a substring within a string
 242  int    Math    get the integer portion of a number
 243  ioctl    File    system-dependent device control system call
 244  join    LIST    join a list into a string using a separator
 245  keys    HASH    retrieve list of indices from a hash
 246  kill    Process    send a signal to a process or process group
 247  last    Flow    exit a block prematurely
 248  lc    String    return lower-case version of a string
 249  lcfirst    String    return a string with just the next letter in lower case
 250  length    String    return the number of bytes in a string
 251  link    File    create a hard link in the filesytem
 252  listen    Socket    register your socket as a server 
 253  local    Misc,Namespace    create a temporary value for a global variable (dynamic scoping)
 254  localtime    Time    convert UNIX time into record or string using local time
 255  lock    Threads    get a thread lock on a variable, subroutine, or method
 256  log    Math    retrieve the natural logarithm for a number
 257  lstat    File    stat a symbolic link
 258  m//    Regexp    match a string with a regular expression pattern
 259  map    LIST    apply a change to a list to get back a new list with the changes
 260  mkdir    File    create a directory
 261  msgctl    SysV    SysV IPC message control operations
 262  msgget    SysV    get SysV IPC message queue
 263  msgrcv    SysV    receive a SysV IPC message from a message queue
 264  msgsnd    SysV    send a SysV IPC message to a message queue
 265  my    Misc,Namespace    declare and assign a local variable (lexical scoping)
 266  next    Flow    iterate a block prematurely
 267  no    Modules    unimport some module symbols or semantics at compile time
 268  package    Modules,Objects,Namespace    declare a separate global namespace
 269  prototype    Flow,Misc    get the prototype (if any) of a subroutine
 270  oct    String,Math    convert a string to an octal number
 271  open    File    open a file, pipe, or descriptor
 272  opendir    File    open a directory
 273  ord    String    find a character's numeric representation
 274  our    Misc,Namespace    declare and assign a package variable (lexical scoping)
 275  pack    Binary,String    convert a list into a binary representation
 276  pipe    Process    open a pair of connected filehandles
 277  pop    ARRAY    remove the last element from an array and return it
 278  pos    Regexp    find or set the offset for the last/next m//g search
 279  print    I/O    output a list to a filehandle
 280  printf    I/O      output a formatted list to a filehandle
 281  push    ARRAY    append one or more elements to an array
 282  q/STRING/    String    singly quote a string
 283  qq/STRING/    String    doubly quote a string
 284  quotemeta    Regexp    quote regular expression magic characters
 285  qw/STRING/    LIST    quote a list of words
 286  qx/STRING/    Process    backquote quote a string
 287  qr/STRING/    Regexp    Compile pattern 
 288  rand    Math    retrieve the next pseudorandom number 
 289  read    I/O,Binary    fixed-length buffered input from a filehandle
 290  readdir    I/O    get a directory from a directory handle
 291  readline    I/O    fetch a record from a file
 292  readlink    File    determine where a symbolic link is pointing
 293  readpipe    Process    execute a system command and collect standard output
 294  recv    Socket    receive a message over a Socket
 295  redo    Flow    start this loop iteration over again
 296  ref    Objects    find out the type of thing being referenced
 297  rename    File    change a filename
 298  require    Modules    load in external functions from a library at runtime
 299  reset    Misc    clear all variables of a given name
 300  return    Flow    get out of a function early
 301  reverse    String,LIST    flip a string or a list
 302  rewinddir    I/O    reset directory handle
 303  rindex    String    right-to-left substring search
 304  rmdir    File    remove a directory
 305  s///    Regexp    replace a pattern with a string
 306  scalar    Misc    force a scalar context
 307  seek    I/O    reposition file pointer for random-access I/O
 308  seekdir    I/O    reposition directory pointer 
 309  select    I/O    reset default output or do I/O multiplexing
 310  semctl    SysV    SysV semaphore control operations
 311  semget    SysV    get set of SysV semaphores
 312  semop    SysV    SysV semaphore operations
 313  send    Socket    send a message over a socket
 314  setgrent    User    prepare group file for use
 315  sethostent    Network    prepare hosts file for use
 316  setnetent    Network    prepare networks file for use
 317  setpgrp    Process    set the process group of a process
 318  setpriority    Process    set a process's nice value
 319  setprotoent    Network    prepare protocols file for use
 320  setpwent    User    prepare passwd file for use
 321  setservent    Network    prepare services file for use
 322  setsockopt    Socket    set some socket options
 323  shift    ARRAY    remove the first element of an array, and return it
 324  shmctl    SysV    SysV shared memory operations
 325  shmget    SysV    get SysV shared memory segment identifier
 326  shmread    SysV    read SysV shared memory 
 327  shmwrite    SysV    write SysV shared memory 
 328  shutdown    Socket    close down just half of a socket connection
 329  sin    Math    return the sine of a number
 330  sleep    Process    block for some number of seconds
 331  socket    Socket    create a socket
 332  socketpair    Socket    create a pair of sockets
 333  sort    LIST    sort a list of values 
 334  splice    ARRAY    add or remove elements anywhere in an array
 335  split    Regexp    split up a string using a regexp delimiter
 336  sprintf    String    formatted print into a string    
 337  sqrt    Math    square root function
 338  srand    Math    seed the random number generator
 339  stat    File    get a file's status information
 340  study    Regexp    optimize input data for repeated searches
 341  sub    Flow    declare a subroutine, possibly anonymously
 342  substr    String    get or alter a portion of a stirng
 343  symlink    File    create a symbolic link to a file
 344  syscall    I/O,Binary    execute an arbitrary system call
 345  sysopen    File    open a file, pipe, or descriptor
 346  sysread    I/O,Binary    fixed-length unbuffered input from a filehandle
 347  sysseek    I/O,Binary    position I/O pointer on handle used with sysread and syswrite
 348  system    Process    run a separate program 
 349  syswrite    I/O,Binary    fixed-length unbuffered output to a filehandle
 350  tell    I/O    get current seekpointer on a filehandle
 351  telldir    I/O    get current seekpointer on a directory handle
 352  tie    Objects    bind a variable to an object class 
 353  tied    Objects    get a reference to the object underlying a tied variable
 354  time    Time    return number of seconds since 1970
 355  times    Process,Time    return elapsed time for self and child processes
 356  tr///    String    transliterate a string
 357  truncate    I/O    shorten a file
 358  uc    String    return upper-case version of a string
 359  ucfirst    String    return a string with just the next letter in upper case
 360  umask    File    set file creation mode mask
 361  undef    Misc    remove a variable or function definition
 362  unlink    File    remove one link to a file
 363  unpack    Binary,LIST    convert binary structure into normal perl variables
 364  unshift    ARRAY    prepend more elements to the beginning of a list
 365  untie    Objects    break a tie binding to a variable
 366  use    Modules,Namespace    load a module and import its namespace
 367  use     Objects    load in a module at compile time
 368  utime    File    set a file's last access and modify times
 369  values    HASH    return a list of the values in a hash
 370  vec    Binary    test or set particular bits in a string
 371  wait    Process    wait for any child process to die
 372  waitpid    Process    wait for  a particular child process to die
 373  wantarray    Misc,Flow    get void vs scalar vs list context of current subroutine call
 374  warn    I/O    print debugging info
 375  write    I/O    print a picture record
 376  y///    String    transliterate a string

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