Class: Wankel::SaxParser

Inherits:
Object
  • Object
show all
Defined in:
lib/wankel/ex_sax_parser.rb,
ext/wankel/wankel_sax_parser.c

Instance Method Summary collapse

Constructor Details

#initialize(*args) ⇒ Object 



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# File 'ext/wankel/wankel_sax_parser.c', line 32

VALUE sax_parser_initialize(int argc, VALUE * argv, VALUE self) {
    VALUE defaults = rb_const_get(c_wankel, intern_DEFAULTS);
    VALUE klass = rb_funcall(self, rb_intern("class"), 0);
    VALUE options, rbufsize;
    sax_parser * p;

    rb_scan_args(argc, argv, "01", &options);
    if (rb_const_defined(klass, intern_DEFAULTS)) { 
        defaults = rb_funcall(defaults, intern_merge, 1, rb_const_get(klass, intern_DEFAULTS));
    }
    if(options == Qnil) {
        rb_iv_set(self, "@options", rb_funcall(defaults, intern_clone, 0) );
    } else {
        Check_Type(options, T_HASH);
        rb_iv_set(self, "@options", rb_funcall(defaults, intern_merge, 1, options) );
    }
    options = rb_iv_get(self, "@options");

    Data_Get_Struct(self, sax_parser, p);
    p->callbacks = sax_parser_callbacks(self);
    p->alloc_funcs.malloc = yajl_helper_malloc;
    p->alloc_funcs.realloc = yajl_helper_realloc;
    p->alloc_funcs.free = yajl_helper_free;
    p->h = yajl_alloc(&p->callbacks, &p->alloc_funcs, (void *)self);
    
    yajl_configure(p->h, options);
        
    rbufsize = rb_hash_aref(options, sym_read_buffer_size);
    Check_Type(rbufsize, T_FIXNUM);
    p->rbufsize = rbufsize;
    
    if(rb_hash_aref(options, sym_symbolize_keys) == Qtrue) {
        p->symbolize_keys = 1;
    } else {
        p->symbolize_keys = 0;
    }
    
    return self;
}

Instance Method Details

#complete ⇒ Object 



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# File 'ext/wankel/wankel_sax_parser.c', line 120

static VALUE sax_parser_complete(VALUE self) {
    yajl_status status;
    sax_parser * p;
    Data_Get_Struct(self, sax_parser, p);
    
    status = yajl_complete_parse(p->h);
    yajl_helper_check_status(p->h, status, 0, NULL, 0);
    
    return Qnil;
}

#on_array_end ⇒ Object 



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# File 'lib/wankel/ex_sax_parser.rb', line 39

def on_array_end
  puts "end array"
end

#on_array_start ⇒ Object 



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# File 'lib/wankel/ex_sax_parser.rb', line 35

def on_array_start
  puts "start array"
end

#on_boolean(value) ⇒ Object 



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# File 'lib/wankel/ex_sax_parser.rb', line 19

def on_boolean(value)
  puts value
end

#on_double(d) ⇒ Object 



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# File 'lib/wankel/ex_sax_parser.rb', line 27

def on_double(d)
  puts "double"
end

#on_integer(i) ⇒ Object 



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# File 'lib/wankel/ex_sax_parser.rb', line 23

def on_integer(i)
  puts "integer"
end

#on_map_end ⇒ Object 



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# File 'lib/wankel/ex_sax_parser.rb', line 7

def on_map_end
  puts 'end map'
end

#on_map_key(key) ⇒ Object 



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# File 'lib/wankel/ex_sax_parser.rb', line 11

def on_map_key(key)
  puts 'key'
end

#on_map_start ⇒ Object 



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# File 'lib/wankel/ex_sax_parser.rb', line 3

def on_map_start
  puts 'start map'
end

#on_null ⇒ Object 



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# File 'lib/wankel/ex_sax_parser.rb', line 15

def on_null
  puts "null"
end

#on_string(s) ⇒ Object 



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# File 'lib/wankel/ex_sax_parser.rb', line 31

def on_string(s)
  puts "string"
end

#parse(*args) ⇒ Object 



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# File 'ext/wankel/wankel_sax_parser.c', line 72

static VALUE sax_parser_parse(int argc, VALUE * argv, VALUE self) {
    const char * cptr;
    size_t len;
    yajl_status status;
    sax_parser * p;
    VALUE input;
    Data_Get_Struct(self, sax_parser, p);
	
    rb_scan_args(argc, argv, "10", &input);
    if (TYPE(input) == T_STRING) {
        cptr = RSTRING_PTR(input);
        len = RSTRING_LEN(input);
        status = yajl_parse(p->h, (const unsigned char*)cptr, len);
        yajl_helper_check_status(p->h, status, 1, (const unsigned char*)cptr, len);
    } else if (rb_respond_to(input, intern_io_read)) {
        VALUE chunk = rb_str_new(0, FIX2LONG(p->rbufsize));
        while (rb_funcall(input, intern_io_read, 2, p->rbufsize, chunk) != Qnil) {
            cptr = RSTRING_PTR(chunk);
            len = RSTRING_LEN(chunk);
            status = yajl_parse(p->h, (const unsigned char*)cptr, len);
            yajl_helper_check_status(p->h, status, 1, (const unsigned char*)cptr, len);
        }
    } else {
        rb_raise(e_parseError, "input must be a string or an IO");
    }
    
    status = yajl_complete_parse(p->h);
    yajl_helper_check_status(p->h, status, 0, NULL, 0);
    
    return Qnil;
}

#write(input) ⇒ Object Also known as: << 



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# File 'ext/wankel/wankel_sax_parser.c', line 104

static VALUE sax_parser_write(VALUE self, VALUE input) {
    const char * cptr;
    size_t len;
    yajl_status status;
    sax_parser * p;
    Data_Get_Struct(self, sax_parser, p);
    
    Check_Type(input, T_STRING);
    cptr = RSTRING_PTR(input);
    len = RSTRING_LEN(input);
    status = yajl_parse(p->h, (const unsigned char*)cptr, len);
    yajl_helper_check_status(p->h, status, 1, (const unsigned char*)cptr, len);
    
    return Qnil;
}