[ViewVC] Diff of: cvs/JSON-XS/XS.pm

Comparing JSON-XS/XS.pm (file contents):
Revision 1.59 by root, Mon Aug 27 01:49:01 2007 UTC vs.
Revision 1.64 by root, Thu Oct 11 23:57:24 2007 UTC

+=encoding utf-8
 =head1 NAME
 JSON::XS - JSON serialising/deserialising, done correctly and fast
+JSON::XS - 正しくて高速な JSON シリアライザ/デシリアライザ
+           (http://fleur.hio.jp/perldoc/mix/lib/JSON/XS.html)
 =head1 SYNOPSIS
  use JSON::XS;
 =over 4
 =item $json_text = to_json $perl_scalar
-Converts the given Perl data structure (a simple scalar or a reference to
+Converts the given Perl data structure to a UTF-8 encoded, binary string
-a hash or array) to a UTF-8 encoded, binary string (that is, the string contains
+(that is, the string contains octets only). Croaks on error.
-octets only). Croaks on error.
 This function call is functionally identical to:
    $json_text = JSON::XS->new->utf8->encode ($perl_scalar)
 except being faster.
 =item $perl_scalar = from_json $json_text
-The opposite of C<to_json>: expects an UTF-8 (binary) string and tries to
+The opposite of C<to_json>: expects an UTF-8 (binary) string and tries
-parse that as an UTF-8 encoded JSON text, returning the resulting simple
+to parse that as an UTF-8 encoded JSON text, returning the resulting
-scalar or reference. Croaks on error.
+reference. Croaks on error.
 This function call is functionally identical to:
    $perl_scalar = JSON::XS->new->utf8->decode ($json_text)
 See MAPPING, below, for more information on how JSON values are mapped to
 Perl.
 =back
+=head1 A FEW NOTES ON UNICODE AND PERL
+Since this often leads to confusion, here are a few very clear words on
+how Unicode works in Perl, modulo bugs.
+=over 4
+=item 1. Perl strings can store characters with ordinal values > 255.
+This enables you to store unicode characters as single characters in a
+Perl string - very natural.
+=item 2. Perl does I<not> associate an encoding with your strings.
+Unless you force it to, e.g. when matching it against a regex, or printing
+the scalar to a file, in which case Perl either interprets your string as
+locale-encoded text, octets/binary, or as Unicode, depending on various
+settings. In no case is an encoding stored together with your data, it is
+I<use> that decides encoding, not any magical metadata.
+=item 3. The internal utf-8 flag has no meaning with regards to the
+encoding of your string.
+Just ignore that flag unless you debug a Perl bug, a module written in
+XS or want to dive into the internals of perl. Otherwise it will only
+confuse you, as, despite the name, it says nothing about how your string
+is encoded. You can have unicode strings with that flag set, with that
+flag clear, and you can have binary data with that flag set and that flag
+clear. Other possibilities exist, too.
+If you didn't know about that flag, just the better, pretend it doesn't
+exist.
+=item 4. A "Unicode String" is simply a string where each character can be
+validly interpreted as a Unicode codepoint.
+If you have UTF-8 encoded data, it is no longer a Unicode string, but a
+Unicode string encoded in UTF-8, giving you a binary string.
+=item 5. A string containing "high" (> 255) character values is I<not> a UTF-8 string.
+Its a fact. Learn to live with it.
+=back
+I hope this helps :)
 =head1 OBJECT-ORIENTED INTERFACE
 The object oriented interface lets you configure your own encoding or
    ]
    {
       "k1": "v1",
       "k2": "v2", <- this comma not normally allowed
    }
+=item * shell-style '#'-comments
+Whenever JSON allows whitespace, shell-style comments are additionally
+allowed. They are terminated by the first carriage-return or line-feed
+character, after which more white-space and comments are allowed.
+  [
+     1, # this comment not allowed in JSON
+        # neither this one...
+  ]
 =back
 =item $json = $json->canonical ([$enable])
    to_json [\0,JSON::XS::true]      # yields [false,true]
 =item JSON::XS::true, JSON::XS::false
 These special values become JSON true and JSON false values,
-respectively. You cna alos use C<\1> and C<\0> directly if you want.
+respectively. You can also use C<\1> and C<\0> directly if you want.
 =item blessed objects
 Blessed objects are not allowed. JSON::XS currently tries to encode their
 underlying representation (hash- or arrayref), but this behaviour might
 design bugs, but it is still you who will have to deal with it, as major
 browser developers care only for features, not about doing security
 right).
+=head1 THREADS
+This module is I<not> guarenteed to be thread safe and there are no
+plans to change this until Perl gets thread support (as opposed to the
+horribly slow so-called "threads" which are simply slow and bloated
+process simulations - use fork, its I<much> faster, cheaper, better).
+(It might actually work, but you ahve ben warned).
 =head1 BUGS
 While the goal of this module is to be correct, that unfortunately does
 not mean its bug-free, only that I think its design is bug-free. It is
 still relatively early in its development. If you keep reporting bugs they
 will be fixed swiftly, though.
+Please refrain from using rt.cpan.org or any other bug reporting
+service. I put the contact address into my modules for a reason.
 =cut
 our $true  = do { bless \(my $dummy = 1), "JSON::XS::Boolean" };
 our $false = do { bless \(my $dummy = 0), "JSON::XS::Boolean" };

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Comparing JSON-XS/XS.pm (file contents): Revision 1.59 by root, Mon Aug 27 01:49:01 2007 UTC vs. Revision 1.64 by root, Thu Oct 11 23:57:24 2007 UTC

Diff Legend

Comparing JSON-XS/XS.pm (file contents):
Revision 1.59 by root, Mon Aug 27 01:49:01 2007 UTC vs.
Revision 1.64 by root, Thu Oct 11 23:57:24 2007 UTC