+{
v5.6 => {
new => [
- ['<code>use warnings</code>'],
- ['<code>use utf8</code>'],
- ['<code>\N{named character}</code>'],
- ['<code>our</code>'],
- ['<code>v1.2.3</code>'],
- ['<code>sub :locked :method</code>'],
- ['<code>open $fh, $mode, $expr</code>'],
+ ['<code>use warnings</code>', 'pragma to enable warnings in lexical scope'],
+ ['<code>use utf8</code>', 'experimental unicode semantics <small>(completed in v5.8)</small>'],
+ ['<code>use charnames</code>', 'string escape <code>\N{}</code> to insert named character'],
+ ['<code>our</code>', 'declare global variables'],
+ ['<code>v1.2.3</code>', q`represent strings as vector of ordinals, useful in version numbers (<code>printf '%vd'</code> to display)`],
+ ['<code>0b0</code>', q`binary numbers in literals, <code>printf '%b'</code>, and <code>oct</code>`],
+ ['<code>sub :lvalue</code>', 'subroutine attribute to return a modifiable value'],
+# ['<code>sub :locked :method</code>', 'syntax to declare subroutine attributes'], # can be inferred from :lvalue support
+ ['<code>open my $fh, $mode, $expr</code>', 'file handles in scoped scalars, third argument for unambiguous file name'],
+ [q`<code>pack 'q'</code>`, '64-bit integer support (also large files >2GiB)'],
+ ['<code>sort $coderef ()</code>', 'comparison function can be a subroutine reference; prototype <code>($$)</code> to pass elements as normal <code>@_</code>'],
+ ['<code>CHECK {}</code>', 'special block called at end of compilation'],
+ ['<code>/[[:…:]]/</code>', 'POSIX character class syntax such as <code>[[:alpha:]]/</code>'],
+ # quite a lot more, but leave it at this
],
release => '2000-03-23',
distro => {
v5.8 => {
new => [
- [q`<code>no utf8; $unicode</code>`, 'unicode overhaul: additional /\p{}/ properties'],
+ [q`<code>no utf8</code>`, 'full unicode support, <code>utf8</code> pragma only for script encoding'],
[q`<code>binmode $fh, ':perlio'</code>`, 'file handle behaviour altered by PerlIO layers'],
[q`<code>open $fh, '-|', @cmd</code>`, 'open list to fork a command without spawning a shell'],
[q`<code>open $fh, '>', \$var</code>`, 'perl scalars as virtual files'],