--- JSON-XS/XS.pm 2007/03/22 21:13:58 1.4 +++ JSON-XS/XS.pm 2007/03/23 16:00:19 1.9 @@ -61,7 +61,7 @@ package JSON::XS; BEGIN { - $VERSION = '0.1'; + $VERSION = '0.3'; @ISA = qw(Exporter); @EXPORT = qw(to_json from_json); @@ -116,12 +116,13 @@ my $json = JSON::XS->new->utf8(1)->space_after(1)->encode ({a => [1,2]}) => {"a": [1, 2]} -=item $json = $json->ascii ($enable) +=item $json = $json->ascii ([$enable]) -If C<$enable> is true, then the C method will not generate -characters outside the code range C<0..127>. Any unicode characters -outside that range will be escaped using either a single \uXXXX (BMP -characters) or a double \uHHHH\uLLLLL escape sequence, as per RFC4627. +If C<$enable> is true (or missing), then the C method will +not generate characters outside the code range C<0..127>. Any unicode +characters outside that range will be escaped using either a single +\uXXXX (BMP characters) or a double \uHHHH\uLLLLL escape sequence, as per +RFC4627. If C<$enable> is false, then the C method will not escape Unicode characters unless necessary. @@ -129,20 +130,20 @@ JSON::XS->new->ascii (1)->encode (chr 0x10401) => \ud801\udc01 -=item $json = $json->utf8 ($enable) +=item $json = $json->utf8 ([$enable]) -If C<$enable> is true, then the C method will encode the JSON -string into UTF-8, as required by many protocols, while the C -method expects to be handled an UTF-8-encoded string. Please note that -UTF-8-encoded strings do not contain any characters outside the range -C<0..255>, they are thus useful for bytewise/binary I/O. +If C<$enable> is true (or missing), then the C method will encode +the JSON string into UTF-8, as required by many protocols, while the +C method expects to be handled an UTF-8-encoded string. Please +note that UTF-8-encoded strings do not contain any characters outside the +range C<0..255>, they are thus useful for bytewise/binary I/O. If C<$enable> is false, then the C method will return the JSON string as a (non-encoded) unicode string, while C expects thus a unicode string. Any decoding or encoding (e.g. to UTF-8 or UTF-16) needs to be done yourself, e.g. using the Encode module. -=item $json = $json->pretty ($enable) +=item $json = $json->pretty ([$enable]) This enables (or disables) all of the C, C and C (and in the future possibly more) flags in one call to @@ -157,9 +158,9 @@ ] } -=item $json = $json->indent ($enable) +=item $json = $json->indent ([$enable]) -If C<$enable> is true, then the C method will use a multiline +If C<$enable> is true (or missing), then the C method will use a multiline format as output, putting every array member or object/hash key-value pair into its own line, identing them properly. @@ -168,9 +169,9 @@ This setting has no effect when decoding JSON strings. -=item $json = $json->space_before ($enable) +=item $json = $json->space_before ([$enable]) -If C<$enable> is true, then the C method will add an extra +If C<$enable> is true (or missing), then the C method will add an extra optional space before the C<:> separating keys from values in JSON objects. If C<$enable> is false, then the C method will not add any extra @@ -179,9 +180,9 @@ This setting has no effect when decoding JSON strings. You will also most likely combine this setting with C. -=item $json = $json->space_after ($enable) +=item $json = $json->space_after ([$enable]) -If C<$enable> is true, then the C method will add an extra +If C<$enable> is true (or missing), then the C method will add an extra optional space after the C<:> separating keys from values in JSON objects and extra whitespace after the C<,> separating key-value pairs and array members. @@ -191,9 +192,9 @@ This setting has no effect when decoding JSON strings. -=item $json = $json->canonical ($enable) +=item $json = $json->canonical ([$enable]) -If C<$enable> is true, then the C method will output JSON objects +If C<$enable> is true (or missing), then the C method will output JSON objects by sorting their keys. This is adding a comparatively high overhead. If C<$enable> is false, then the C method will output key-value @@ -207,9 +208,9 @@ This setting has no effect when decoding JSON strings. -=item $json = $json->allow_nonref ($enable) +=item $json = $json->allow_nonref ([$enable]) -If C<$enable> is true, then the C method can convert a +If C<$enable> is true (or missing), then the C method can convert a non-reference into its corresponding string, number or null JSON value, which is an extension to RFC4627. Likewise, C will accept those JSON values instead of croaking. @@ -219,6 +220,27 @@ or array. Likewise, C will croak if given something that is not a JSON object or array. +=item $json = $json->shrink ([$enable]) + +Perl usually over-allocates memory a bit when allocating space for +strings. This flag optionally resizes strings generated by either +C or C to their minimum size possible. This can save +memory when your JSON strings are either very very long or you have many +short strings. It will also try to downgrade any strings to octet-form +if possible: perl stores strings internally either in an encoding called +UTF-X or in octet-form. The latter cannot store everything but uses less +space in general. + +If C<$enable> is true (or missing), the string returned by C will be shrunk-to-fit, +while all strings generated by C will also be shrunk-to-fit. + +If C<$enable> is false, then the normal perl allocation algorithms are used. +If you work with your data, then this is likely to be faster. + +In the future, this setting might control other things, such as converting +strings that look like integers or floats into integers or floats +internally (there is no difference on the Perl level), saving space. + =item $json_string = $json->encode ($perl_scalar) Converts the given Perl data structure (a simple scalar or a reference @@ -249,7 +271,7 @@ =over 4 -=item JSON +=item JSON 1.07 Slow (but very portable, as it is written in pure Perl). @@ -261,7 +283,7 @@ the string C<2.0> will encode to C<2.0> instead of C<"2.0">, and that will decode into the number 2. -=item JSON::PC +=item JSON::PC 0.01 Very fast. @@ -278,7 +300,7 @@ Unmaintained (maintainer unresponsive for many months, bugs are not getting fixed). -=item JSON::Syck +=item JSON::Syck 0.21 Very buggy (often crashes). @@ -307,7 +329,7 @@ good protocol will at least recover, that is extra unnecessary work and the transaction will still not succeed). -=item JSON::DWIW +=item JSON::DWIW 0.04 Very fast. Very natural. Very nice.