Class: JSON::Ext::Parser
- Inherits:
-
Object
- Object
- JSON::Ext::Parser
- Defined in:
- ext/json/ext/parser/parser.c,
ext/json/ext/parser/parser.c
Overview
Instance Method Summary collapse
-
#new(source, opts) ⇒ Object
constructor
Creates a new JSON::Ext::Parser instance for the string source.
-
#parse ⇒ Object
Parses the current JSON text source and returns the complete data structure as a result.
-
#source ⇒ Object
Returns a copy of the current source string, that was used to construct this Parser.
Constructor Details
#new(source, opts) ⇒ Object
Creates a new JSON::Ext::Parser instance for the string source.
It will be configured by the opts hash. opts can have the following keys:
opts can have the following keys:
-
max_nesting: The maximum depth of nesting allowed in the parsed data structures. Disable depth checking with :max_nesting => false|nil|0, it defaults to 100.
-
allow_nan: If set to true, allow NaN, Infinity and -Infinity in defiance of RFC 4627 to be parsed by the Parser. This option defaults to false.
-
symbolize_names: If set to true, returns symbols for the names (keys) in a JSON object. Otherwise strings are returned, which is also the default. It’s not possible to use this option in conjunction with the create_additions option.
-
create_additions: If set to false, the Parser doesn’t create additions even if a matching class and create_id was found. This option defaults to false.
-
object_class: Defaults to Hash
-
array_class: Defaults to Array
1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 |
# File 'ext/json/ext/parser/parser.c', line 1819
static VALUE cParser_initialize(int argc, VALUE *argv, VALUE self)
{
VALUE source, opts;
GET_PARSER_INIT;
if (json->Vsource) {
rb_raise(rb_eTypeError, "already initialized instance");
}
rb_scan_args(argc, argv, "1:", &source, &opts);
if (!NIL_P(opts)) {
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 = 100;
}
tmp = ID2SYM(i_allow_nan);
if (option_given_p(opts, tmp)) {
json->allow_nan = RTEST(rb_hash_aref(opts, tmp)) ? 1 : 0;
} else {
json->allow_nan = 0;
}
tmp = ID2SYM(i_symbolize_names);
if (option_given_p(opts, tmp)) {
json->symbolize_names = RTEST(rb_hash_aref(opts, tmp)) ? 1 : 0;
} else {
json->symbolize_names = 0;
}
tmp = ID2SYM(i_freeze);
if (option_given_p(opts, tmp)) {
json->freeze = RTEST(rb_hash_aref(opts, tmp)) ? 1 : 0;
} else {
json->freeze = 0;
}
tmp = ID2SYM(i_create_additions);
if (option_given_p(opts, tmp)) {
json->create_additions = RTEST(rb_hash_aref(opts, tmp));
} else {
json->create_additions = 0;
}
if (json->symbolize_names && json->create_additions) {
rb_raise(rb_eArgError,
"options :symbolize_names and :create_additions cannot be "
" used in conjunction");
}
tmp = ID2SYM(i_create_id);
if (option_given_p(opts, tmp)) {
json->create_id = rb_hash_aref(opts, tmp);
} 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;
}
tmp = ID2SYM(i_decimal_class);
if (option_given_p(opts, tmp)) {
json->decimal_class = rb_hash_aref(opts, tmp);
} else {
json->decimal_class = Qnil;
}
tmp = ID2SYM(i_match_string);
if (option_given_p(opts, tmp)) {
VALUE match_string = rb_hash_aref(opts, tmp);
json->match_string = RTEST(match_string) ? match_string : Qnil;
} else {
json->match_string = Qnil;
}
} else {
json->max_nesting = 100;
json->allow_nan = 0;
json->create_additions = 0;
json->create_id = Qnil;
json->object_class = Qnil;
json->array_class = Qnil;
json->decimal_class = Qnil;
}
source = convert_encoding(StringValue(source));
StringValue(source);
json->len = RSTRING_LEN(source);
json->source = RSTRING_PTR(source);;
json->Vsource = source;
return self;
}
|
Instance Method Details
#parse ⇒ Object
Parses the current JSON text source and returns the complete data
structure as a result.
It raises JSON::ParserError if fail to parse.
1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 |
# File 'ext/json/ext/parser/parser.c', line 1937
static VALUE cParser_parse(VALUE self)
{
char *p, *pe;
int cs = EVIL;
VALUE result = Qnil;
GET_PARSER;
#line 1946 "parser.c"
{
cs = JSON_start;
}
#line 845 "parser.rl"
p = json->source;
pe = p + json->len;
#line 1955 "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 34: goto tr2;
case 45: goto tr2;
case 47: goto st6;
case 73: goto tr2;
case 78: goto tr2;
case 91: goto tr2;
case 102: goto tr2;
case 110: goto tr2;
case 116: goto tr2;
case 123: goto tr2;
}
if ( (*p) > 10 ) {
if ( 48 <= (*p) && (*p) <= 57 )
goto tr2;
} else if ( (*p) >= 9 )
goto st1;
goto st0;
st0:
cs = 0;
goto _out;
tr2:
#line 820 "parser.rl"
{
char *np = JSON_parse_value(json, p, pe, &result, 0);
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 1999 "parser.c"
switch( (*p) ) {
case 13: goto st10;
case 32: goto st10;
case 47: goto st2;
}
if ( 9 <= (*p) && (*p) <= 10 )
goto st10;
goto st0;
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 st10;
}
goto st3;
st5:
if ( ++p == pe )
goto _test_eof5;
case 5:
if ( (*p) == 10 )
goto st10;
goto st5;
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 st1;
}
goto st7;
st9:
if ( ++p == pe )
goto _test_eof9;
case 9:
if ( (*p) == 10 )
goto st1;
goto st9;
}
_test_eof1: cs = 1; goto _test_eof;
_test_eof10: cs = 10; 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_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 848 "parser.rl"
if (cs >= JSON_first_final && p == pe) {
return result;
} else {
rb_enc_raise(EXC_ENCODING eParserError, "unexpected token at '%s'", p);
return Qnil;
}
}
|
#source ⇒ Object
Returns a copy of the current source string, that was used to construct this Parser.
2146 2147 2148 2149 2150 |
# File 'ext/json/ext/parser/parser.c', line 2146
static VALUE cParser_source(VALUE self)
{
GET_PARSER;
return rb_str_dup(json->Vsource);
}
|