perl.inc.pl

   1 use utf8;
   2
   3 +{
   4         v5.6 => {
   5                 new => [
   6                         ['<code>use utf8</code>'],
   7                         ['<code>\N{named character}</code>'],
   8                         ['<code>our</code>'],
   9                         ['<code>v1.2.3</code>'],
  10                         ['<code>sub :locked :method</code>'],
  11                         ['<code>open $fh, $mode, $expr</code>'],
  12                 ],
  13                 release => '2000-03-23',
  14                 distro => {
  15                         debian => 'woody',
  16                         redhat => '2.1',
  17                 },
  18                 unicode => '3.0.1',
  19         },
  20
  21         v5.8 => {
  22                 new => [
  23                         ['unicode overhaul'],
  24                         ['PerlIO'],
  25                 ],
  26                 release => '2002-07-18',
  27                 distro => {
  28                         debian => 'sarge',
  29                         redhat => '3.9',
  30                 },
  31                 unicode => '3.2.0',
  32         },
  33
  34         v5.10 => {
  35                 new => [
  36                         ['<code>//</code>', 'defined-or operator'],
  37                         ['<code>~~</code>', 'smart-match operator to compare different data types'],
  38                         ['<code>given</code>', 'switch statement to smart-match with <code>when</code>/<code>default</code>'],
  39                         ['<code>/(?&lt;name>)/</code>', 'named capture buffers into <code>%+</code>'],
  40                         ['<code>s/keep\K//</code>', 'floating positive lookbehind, efficient alternative for <code>s/(keep)/$1/</code>'],
  41                         ['<code>/\v/, /\h/</code>', 'vertical and horizontal whitespace escapes'],
  42                         ['<code>my $_</code>', 'lexically scoped version of the default variable'],
  43                 ],
  44                 release => '2007-12-18',
  45                 distro => {
  46                         debian => 'lenny',
  47                         redhat => '6.5',
  48                 },
  49                 unicode => '5.0.0',
  50         },
  51
  52         v5.12 => {
  53                 new => [
  54                         ['<code>package version</code>', '<code>package</code> NAME VERSION shorthand for <code>our $VERSION</code>'],
  55                         ['<code>...</code>', 'yada-yada operator: code placeholder'],
  56                         ['<code>use 5.012</code>', 'Implicit <code>strict</code> if use VERSION >= v5.12'],
  57                         ['<code>… when</code>', '<code>when</code> is now allowed to be used as a statement modifier'],
  58                 ],
  59                 release => '2010-04-12',
  60                 unicode => '5.2',
  61         },
  62
  63         v5.14 => {
  64                 new => [
  65                         ['<code>s///r</code>', 'non-destructive substitution'],
  66                         ['<code>/(?^)/</code>', 'construct to reset to default modifiers'],
  67                         ['<code>/(?{ m// })/</code>', 'regular expressions can be nested in <code>/(?{})/</code> and <code>/(??{})/</code>'],
  68                         ["<code>use re '/flags'</code>", 'customize default modifiers'],
  69                         ['<code>each $ref</code> e.a.', 'array and hash container functions accept references'],
  70                         ['<code>FH->method</code>', 'filehandle method calls load IO::File on demand (eg. <code>STDOUT->flush</code>)'],
  71                 ],
  72                 release => '2011-05-14',
  73                 distro => {
  74                         debian => 'wheezy',
  75                 },
  76                 unicode => '6.0+#8',
  77         },
  78
  79         v5.16 => {
  80                 new => [
  81                         ['<code>__SUB__</code>', 'current subroutine reference'],
  82                         ['<code>fc, "\F"</code>', 'unicode foldcase to compare case-insensitively'],
  83                         ['<code>"\N{}"</code>', 'automatic use charnames qw( :full :short )'],
  84                 ],
  85                 release => '2012-05-20',
  86                 distro => {
  87                         redhat => '7.0',
  88                 },
  89                 unicode => '6.1',
  90         },
  91
  92         v5.18 => {
  93                 new => [
  94                         ['<code>${^LAST_FH}</code>', 'last read filehandle (used by <code>$.</code>)'],
  95                         ['<code>/(?[ a + b ])/</code>', 'regex set operations (character substraction -, unions &amp;)'],
  96                         ['<code>my sub foo</code>', 'lexical subroutines (also state, our)'],
  97                         ['<code>next $expression</code>', 'loop controls allow runtime expressions'],
  98                         [q(<code>no warnings 'experimental::…'</code>), 'mechanism for experimental features, as of now required for smartmatch'],
  99                 ],
 100                 release => '2013-05-18',
 101                 distro => {
 102                         debian => 'jessie',
 103                 },
 104                 unicode => '6.2',
 105         },
 106
 107         v5.20 => {
 108                 new => [
 109                         ['<code>sub ($var)</code>', 'subroutine signatures'],
 110                         ['<code>%hash{…}</code>', 'hash slices return key+value pairs'],
 111                         ['<code>[]->@*</code>', 'postfix dereferencing (also e.g. <code>$scalar->$*</code> for <code>$$scalar</code>)'],
 112                         [q(<code>use warnings 'once'; $a</code>), 'variables $a and $b are exempt from <em>used once</em> warnings'],
 113                 ],
 114                 unicode => '6.3',
 115                 release => '2014-05-27',
 116         },
 117 }