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| 86 | package JSON::XS; |
86 | package JSON::XS; |
| 87 | |
87 | |
| 88 | use strict; |
88 | use strict; |
| 89 | |
89 | |
| 90 | BEGIN { |
90 | BEGIN { |
| 91 | our $VERSION = '1.12'; |
91 | our $VERSION = '1.21'; |
| 92 | our @ISA = qw(Exporter); |
92 | our @ISA = qw(Exporter); |
| 93 | |
93 | |
| 94 | our @EXPORT = qw(to_json from_json objToJson jsonToObj); |
94 | our @EXPORT = qw(to_json from_json objToJson jsonToObj); |
| 95 | require Exporter; |
95 | require Exporter; |
| 96 | |
96 | |
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| 159 | as per RFC4627. The resulting encoded JSON text can be treated as a native |
159 | as per RFC4627. The resulting encoded JSON text can be treated as a native |
| 160 | unicode string, an ascii-encoded, latin1-encoded or UTF-8 encoded string, |
160 | unicode string, an ascii-encoded, latin1-encoded or UTF-8 encoded string, |
| 161 | or any other superset of ASCII. |
161 | or any other superset of ASCII. |
| 162 | |
162 | |
| 163 | If C<$enable> is false, then the C<encode> method will not escape Unicode |
163 | If C<$enable> is false, then the C<encode> method will not escape Unicode |
| 164 | characters unless required by the JSON syntax. This results in a faster |
164 | characters unless required by the JSON syntax or other flags. This results |
| 165 | and more compact format. |
165 | in a faster and more compact format. |
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166 | |
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167 | The main use for this flag is to produce JSON texts that can be |
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168 | transmitted over a 7-bit channel, as the encoded JSON texts will not |
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169 | contain any 8 bit characters. |
| 166 | |
170 | |
| 167 | JSON::XS->new->ascii (1)->encode ([chr 0x10401]) |
171 | JSON::XS->new->ascii (1)->encode ([chr 0x10401]) |
| 168 | => ["\ud801\udc01"] |
172 | => ["\ud801\udc01"] |
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173 | |
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174 | =item $json = $json->latin1 ([$enable]) |
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175 | |
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176 | If C<$enable> is true (or missing), then the C<encode> method will encode |
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177 | the resulting JSON text as latin1 (or iso-8859-1), escaping any characters |
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178 | outside the code range C<0..255>. The resulting string can be treated as a |
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179 | latin1-encoded JSON text or a native unicode string. The C<decode> method |
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180 | will not be affected in any way by this flag, as C<decode> by default |
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181 | expects unicode, which is a strict superset of latin1. |
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182 | |
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183 | If C<$enable> is false, then the C<encode> method will not escape Unicode |
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184 | characters unless required by the JSON syntax or other flags. |
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185 | |
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186 | The main use for this flag is efficiently encoding binary data as JSON |
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187 | text, as most octets will not be escaped, resulting in a smaller encoded |
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188 | size. The disadvantage is that the resulting JSON text is encoded |
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189 | in latin1 (and must correctly be treated as such when storing and |
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190 | transfering), a rare encoding for JSON. It is therefore most useful when |
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191 | you want to store data structures known to contain binary data efficiently |
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192 | in files or databases, not when talking to other JSON encoders/decoders. |
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193 | |
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194 | JSON::XS->new->latin1->encode (["\x{89}\x{abc}"] |
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195 | => ["\x{89}\\u0abc"] # (perl syntax, U+abc escaped, U+89 not) |
| 169 | |
196 | |
| 170 | =item $json = $json->utf8 ([$enable]) |
197 | =item $json = $json->utf8 ([$enable]) |
| 171 | |
198 | |
| 172 | If C<$enable> is true (or missing), then the C<encode> method will encode |
199 | If C<$enable> is true (or missing), then the C<encode> method will encode |
| 173 | the JSON result into UTF-8, as required by many protocols, while the |
200 | the JSON result into UTF-8, as required by many protocols, while the |
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… | |
| 347 | |
374 | |
| 348 | JSON numbers and strings become simple Perl scalars. JSON arrays become |
375 | JSON numbers and strings become simple Perl scalars. JSON arrays become |
| 349 | Perl arrayrefs and JSON objects become Perl hashrefs. C<true> becomes |
376 | Perl arrayrefs and JSON objects become Perl hashrefs. C<true> becomes |
| 350 | C<1>, C<false> becomes C<0> and C<null> becomes C<undef>. |
377 | C<1>, C<false> becomes C<0> and C<null> becomes C<undef>. |
| 351 | |
378 | |
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379 | =item ($perl_scalar, $characters) = $json->decode_prefix ($json_text) |
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380 | |
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381 | This works like the C<decode> method, but instead of raising an exception |
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382 | when there is trailing garbage after the first JSON object, it will |
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383 | silently stop parsing there and return the number of characters consumed |
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384 | so far. |
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385 | |
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386 | This is useful if your JSON texts are not delimited by an outer protocol |
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387 | (which is not the brightest thing to do in the first place) and you need |
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388 | to know where the JSON text ends. |
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389 | |
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390 | JSON::XS->new->decode_prefix ("[1] the tail") |
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391 | => ([], 3) |
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392 | |
| 352 | =back |
393 | =back |
| 353 | |
394 | |
| 354 | |
395 | |
| 355 | =head1 MAPPING |
396 | =head1 MAPPING |
| 356 | |
397 | |
