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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>JSON::Ext::Parser</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link rel="stylesheet" href="../../../css/reset.css" type="text/css" media="screen" />
<link rel="stylesheet" href="../../../css/main.css" type="text/css" media="screen" />
<script src="../../../js/jquery-1.3.2.min.js" type="text/javascript" charset="utf-8"></script>
<script src="../../../js/jquery-effect.js" type="text/javascript" charset="utf-8"></script>
<script src="../../../js/main.js" type="text/javascript" charset="utf-8"></script>
</head>
<body>
<div class="banner">
<h1>
<span class="type">Class</span>
JSON::Ext::Parser
<span class="parent"><
<a href="../../Object.html">Object</a>
</span>
</h1>
<ul class="files">
<li><a href="../../../files/ext/json/ext/parser_c.html">ext/json/ext/parser.c</a></li>
</ul>
</div>
<div id="bodyContent">
<div id="content">
<div class="description">
<p>
This is the <a href="../../JSON.html">JSON</a> parser implemented as a C
extension. It can be configured to be used by setting
</p>
<pre>
JSON.parser = JSON::Ext::Parser
</pre>
<p>
with the method parser= in <a href="../../JSON.html">JSON</a>.
</p>
</div>
<div class="sectiontitle">Methods</div>
<dl class="methods">
<dt>N</dt>
<dd>
<ul>
<li><a href="#M000084">new</a></li>
</ul>
</dd>
<dt>P</dt>
<dd>
<ul>
<li><a href="#M000085">parse</a></li>
</ul>
</dd>
<dt>S</dt>
<dd>
<ul>
<li><a href="#M000086">source</a></li>
</ul>
</dd>
</dl>
<div class="sectiontitle">Class Public methods</div>
<div class="method">
<div class="title" id="M000084">
<a name="M000084"></a><b> new(source, opts => {})
</b>
</div>
<div class="description">
<p>
Creates a new <a href="Parser.html">JSON::Ext::Parser</a> instance for the
string <em>source</em>.
</p>
<p>
Creates a new <a href="Parser.html">JSON::Ext::Parser</a> instance for the
string <em>source</em>.
</p>
<p>
It will be configured by the <em>opts</em> hash. <em>opts</em> can have the
following keys:
</p>
<p>
<em>opts</em> can have the following keys:
</p>
<ul>
<li><b>max_nesting</b>: The maximum depth of nesting allowed in the parsed data
structures. Disable depth checking with :max_nesting => false|nil|0, it
defaults to 19.
</li>
<li><b>allow_nan</b>: If set to true, allow NaN, Infinity and -Infinity in
defiance of RFC 4627 to be parsed by the <a href="Parser.html">Parser</a>.
This option defaults to false.
</li>
<li><b>symbolize_names</b>: If set to true, returns symbols for the names
(keys) in a <a href="../../JSON.html">JSON</a> object. Otherwise strings
are returned, which is also the default.
</li>
<li><b>create_additions</b>: If set to false, the <a
href="Parser.html">Parser</a> doesn’t create additions even if a
matchin class and create_id was found. This option defaults to true.
</li>
<li><b>object_class</b>: Defaults to Hash
</li>
<li><b>array_class</b>: Defaults to Array
</li>
</ul>
</div>
<div class="sourcecode">
<p class="source-link">
Source: <a href="javascript:toggleSource('M000084_source')" id="l_M000084_source">show</a>
</p>
<div id="M000084_source" class="dyn-source">
<pre>static VALUE cParser_initialize(int argc, VALUE *argv, VALUE self)
{
char *ptr;
long len;
VALUE source, opts;
GET_PARSER;
rb_scan_args(argc, argv, "11", &source, &opts);
source = convert_encoding(StringValue(source));
ptr = RSTRING_PTR(source);
len = RSTRING_LEN(source);
if (!NIL_P(opts)) {
opts = rb_convert_type(opts, T_HASH, "Hash", "to_hash");
if (NIL_P(opts)) {
rb_raise(rb_eArgError, "opts needs to be like a hash");
} else {
VALUE tmp = ID2SYM(i_max_nesting);
if (option_given_p(opts, tmp)) {
VALUE max_nesting = rb_hash_aref(opts, tmp);
if (RTEST(max_nesting)) {
Check_Type(max_nesting, T_FIXNUM);
json->max_nesting = FIX2INT(max_nesting);
} else {
json->max_nesting = 0;
}
} else {
json->max_nesting = 19;
}
tmp = ID2SYM(i_allow_nan);
if (option_given_p(opts, tmp)) {
VALUE allow_nan = rb_hash_aref(opts, tmp);
json->allow_nan = RTEST(allow_nan) ? 1 : 0;
} else {
json->allow_nan = 0;
}
tmp = ID2SYM(i_symbolize_names);
if (option_given_p(opts, tmp)) {
VALUE symbolize_names = rb_hash_aref(opts, tmp);
json->symbolize_names = RTEST(symbolize_names) ? 1 : 0;
} else {
json->symbolize_names = 0;
}
tmp = ID2SYM(i_create_additions);
if (option_given_p(opts, tmp)) {
VALUE create_additions = rb_hash_aref(opts, tmp);
if (RTEST(create_additions)) {
json->create_id = rb_funcall(mJSON, i_create_id, 0);
} else {
json->create_id = Qnil;
}
} else {
json->create_id = rb_funcall(mJSON, i_create_id, 0);
}
tmp = ID2SYM(i_object_class);
if (option_given_p(opts, tmp)) {
json->object_class = rb_hash_aref(opts, tmp);
} else {
json->object_class = Qnil;
}
tmp = ID2SYM(i_array_class);
if (option_given_p(opts, tmp)) {
json->array_class = rb_hash_aref(opts, tmp);
} else {
json->array_class = Qnil;
}
}
} else {
json->max_nesting = 19;
json->allow_nan = 0;
json->create_id = rb_funcall(mJSON, i_create_id, 0);
json->object_class = Qnil;
json->array_class = Qnil;
}
json->current_nesting = 0;
json->len = len;
json->source = ptr;
json->Vsource = source;
return self;
}</pre>
</div>
</div>
</div>
<div class="sectiontitle">Instance Public methods</div>
<div class="method">
<div class="title" id="M000085">
<a name="M000085"></a><b> parse()
</b>
</div>
<div class="description">
<p>
Parses the current <a href="../../JSON.html">JSON</a> text <em>source</em>
and returns the complete data structure as a result.
</p>
</div>
<div class="sourcecode">
<p class="source-link">
Source: <a href="javascript:toggleSource('M000085_source')" id="l_M000085_source">show</a>
</p>
<div id="M000085_source" class="dyn-source">
<pre>static VALUE cParser_parse(VALUE self)
{
char *p, *pe;
int cs = EVIL;
VALUE result = Qnil;
GET_PARSER;
#line 1701 "parser.c"
{
cs = JSON_start;
}
#line 698 "parser.rl"
p = json->source;
pe = p + json->len;
#line 1710 "parser.c"
{
if ( p == pe )
goto _test_eof;
switch ( cs )
{
st1:
if ( ++p == pe )
goto _test_eof1;
case 1:
switch( (*p) ) {
case 13: goto st1;
case 32: goto st1;
case 47: goto st2;
case 91: goto tr3;
case 123: goto tr4;
}
if ( 9 <= (*p) && (*p) <= 10 )
goto st1;
goto st0;
st0:
cs = 0;
goto _out;
st2:
if ( ++p == pe )
goto _test_eof2;
case 2:
switch( (*p) ) {
case 42: goto st3;
case 47: goto st5;
}
goto st0;
st3:
if ( ++p == pe )
goto _test_eof3;
case 3:
if ( (*p) == 42 )
goto st4;
goto st3;
st4:
if ( ++p == pe )
goto _test_eof4;
case 4:
switch( (*p) ) {
case 42: goto st4;
case 47: goto st1;
}
goto st3;
st5:
if ( ++p == pe )
goto _test_eof5;
case 5:
if ( (*p) == 10 )
goto st1;
goto st5;
tr3:
#line 506 "parser.rl"
{
char *np;
json->current_nesting = 1;
np = JSON_parse_array(json, p, pe, &result);
if (np == NULL) { p--; {p++; cs = 10; goto _out;} } else {p = (( np))-1;}
}
goto st10;
tr4:
#line 499 "parser.rl"
{
char *np;
json->current_nesting = 1;
np = JSON_parse_object(json, p, pe, &result);
if (np == NULL) { p--; {p++; cs = 10; goto _out;} } else {p = (( np))-1;}
}
goto st10;
st10:
if ( ++p == pe )
goto _test_eof10;
case 10:
#line 1787 "parser.c"
switch( (*p) ) {
case 13: goto st10;
case 32: goto st10;
case 47: goto st6;
}
if ( 9 <= (*p) && (*p) <= 10 )
goto st10;
goto st0;
st6:
if ( ++p == pe )
goto _test_eof6;
case 6:
switch( (*p) ) {
case 42: goto st7;
case 47: goto st9;
}
goto st0;
st7:
if ( ++p == pe )
goto _test_eof7;
case 7:
if ( (*p) == 42 )
goto st8;
goto st7;
st8:
if ( ++p == pe )
goto _test_eof8;
case 8:
switch( (*p) ) {
case 42: goto st8;
case 47: goto st10;
}
goto st7;
st9:
if ( ++p == pe )
goto _test_eof9;
case 9:
if ( (*p) == 10 )
goto st10;
goto st9;
}
_test_eof1: cs = 1; goto _test_eof;
_test_eof2: cs = 2; goto _test_eof;
_test_eof3: cs = 3; goto _test_eof;
_test_eof4: cs = 4; goto _test_eof;
_test_eof5: cs = 5; goto _test_eof;
_test_eof10: cs = 10; goto _test_eof;
_test_eof6: cs = 6; goto _test_eof;
_test_eof7: cs = 7; goto _test_eof;
_test_eof8: cs = 8; goto _test_eof;
_test_eof9: cs = 9; goto _test_eof;
_test_eof: {}
_out: {}
}
#line 701 "parser.rl"
if (cs >= JSON_first_final && p == pe) {
return result;
} else {
rb_raise(eParserError, "%u: unexpected token at '%s'", __LINE__, p);
return Qnil;
}
}</pre>
</div>
</div>
</div>
<div class="method">
<div class="title" id="M000086">
<a name="M000086"></a><b> source()
</b>
</div>
<div class="description">
<p>
Returns a copy of the current <em>source</em> string, that was used to
construct this <a href="Parser.html">Parser</a>.
</p>
</div>
<div class="sourcecode">
<p class="source-link">
Source: <a href="javascript:toggleSource('M000086_source')" id="l_M000086_source">show</a>
</p>
<div id="M000086_source" class="dyn-source">
<pre>static VALUE cParser_source(VALUE self)
{
GET_PARSER;
return rb_str_dup(json->Vsource);
}</pre>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
|
