Class: Nokogiri::XML::SAX::ParserContext

Inherits:
Object
  • Object
show all
Defined in:
lib/nokogiri/xml/sax/parser_context.rb,
ext/nokogiri/xml_sax_parser_context.c

Overview

Context for XML SAX parsers. This class is usually not instantiated by the user. Instead, you should be looking at Nokogiri::XML::SAX::Parser

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.parse_file(filename) ⇒ Object

Parse file given filename



48
49
50
51
52
53
 
# File 'ext/nokogiri/xml_sax_parser_context.c', line 48

static VALUE
parse_file(VALUE klass, VALUE filename)
{
  xmlParserCtxtPtr ctxt = xmlCreateFileParserCtxt(StringValueCStr(filename));
  return Data_Wrap_Struct(klass, NULL, deallocate, ctxt);
}

.parse_io(io, encoding) ⇒ Object

Parse io object with encoding



20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
 
# File 'ext/nokogiri/xml_sax_parser_context.c', line 20

static VALUE
parse_io(VALUE klass, VALUE io, VALUE encoding)
{
  xmlParserCtxtPtr ctxt;
  xmlCharEncoding enc = (xmlCharEncoding)NUM2INT(encoding);

  if (!rb_respond_to(io, id_read)) {
    rb_raise(rb_eTypeError, "argument expected to respond to :read");
  }

  ctxt = xmlCreateIOParserCtxt(NULL, NULL,
                               (xmlInputReadCallback)noko_io_read,
                               (xmlInputCloseCallback)noko_io_close,
                               (void *)io, enc);
  if (ctxt->sax) {
    xmlFree(ctxt->sax);
    ctxt->sax = NULL;
  }

  return Data_Wrap_Struct(klass, NULL, deallocate, ctxt);
}

.parse_memory(data) ⇒ Object

Parse the XML stored in memory in data



61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
 
# File 'ext/nokogiri/xml_sax_parser_context.c', line 61

static VALUE
parse_memory(VALUE klass, VALUE data)
{
  xmlParserCtxtPtr ctxt;

  Check_Type(data, T_STRING);

  if (!(int)RSTRING_LEN(data)) {
    rb_raise(rb_eRuntimeError, "data cannot be empty");
  }

  ctxt = xmlCreateMemoryParserCtxt(StringValuePtr(data),
                                   (int)RSTRING_LEN(data));
  if (ctxt->sax) {
    xmlFree(ctxt->sax);
    ctxt->sax = NULL;
  }

  return Data_Wrap_Struct(klass, NULL, deallocate, ctxt);
}

.new(thing, encoding = "UTF-8") ⇒ Object 



11
12
13
14
15
16
17
 
# File 'lib/nokogiri/xml/sax/parser_context.rb', line 11

def self.new(thing, encoding = "UTF-8")
  if [:read, :close].all? { |x| thing.respond_to?(x) }
    io(thing, Parser::ENCODINGS[encoding])
  else
    memory(thing)
  end
end

Instance Method Details

#column ⇒ Object

Get the current column the parser context is processing.



205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
 
# File 'ext/nokogiri/xml_sax_parser_context.c', line 205

static VALUE
column(VALUE self)
{
  xmlParserCtxtPtr ctxt;
  xmlParserInputPtr io;

  Data_Get_Struct(self, xmlParserCtxt, ctxt);

  io = ctxt->input;
  if (io) {
    return INT2NUM(io->col);
  }

  return Qnil;
}

#line ⇒ Object

Get the current line the parser context is processing.



184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
 
# File 'ext/nokogiri/xml_sax_parser_context.c', line 184

static VALUE
line(VALUE self)
{
  xmlParserCtxtPtr ctxt;
  xmlParserInputPtr io;

  Data_Get_Struct(self, xmlParserCtxt, ctxt);

  io = ctxt->input;
  if (io) {
    return INT2NUM(io->line);
  }

  return Qnil;
}

#parse_with(sax_handler) ⇒ Object

Use sax_handler and parse the current document



109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
 
# File 'ext/nokogiri/xml_sax_parser_context.c', line 109

static VALUE
parse_with(VALUE self, VALUE sax_handler)
{
  xmlParserCtxtPtr ctxt;
  xmlSAXHandlerPtr sax;

  if (!rb_obj_is_kind_of(sax_handler, cNokogiriXmlSaxParser)) {
    rb_raise(rb_eArgError, "argument must be a Nokogiri::XML::SAX::Parser");
  }

  Data_Get_Struct(self, xmlParserCtxt, ctxt);
  Data_Get_Struct(sax_handler, xmlSAXHandler, sax);

  /* Free the sax handler since we'll assign our own */
  if (ctxt->sax && ctxt->sax != (xmlSAXHandlerPtr)&xmlDefaultSAXHandler) {
    xmlFree(ctxt->sax);
  }

  ctxt->sax = sax;
  ctxt->userData = (void *)NOKOGIRI_SAX_TUPLE_NEW(ctxt, sax_handler);

  xmlSetStructuredErrorFunc(NULL, NULL);

  rb_ensure(parse_doc, (VALUE)ctxt, parse_doc_finalize, (VALUE)ctxt);

  return Qnil;
}

#recovery ⇒ Object

Should this parser recover from structural errors? It will not stop processing file on structural errors if set to true



250
251
252
253
254
255
256
257
258
259
260
261
 
# File 'ext/nokogiri/xml_sax_parser_context.c', line 250

static VALUE
get_recovery(VALUE self)
{
  xmlParserCtxtPtr ctxt;
  Data_Get_Struct(self, xmlParserCtxt, ctxt);

  if (ctxt->recovery == 0) {
    return Qfalse;
  } else {
    return Qtrue;
  }
}

#recovery=(boolean) ⇒ Object

Should this parser recover from structural errors? It will not stop processing file on structural errors if set to true



228
229
230
231
232
233
234
235
236
237
238
239
240
241
 
# File 'ext/nokogiri/xml_sax_parser_context.c', line 228

static VALUE
set_recovery(VALUE self, VALUE value)
{
  xmlParserCtxtPtr ctxt;
  Data_Get_Struct(self, xmlParserCtxt, ctxt);

  if (value == Qfalse) {
    ctxt->recovery = 0;
  } else {
    ctxt->recovery = 1;
  }

  return value;
}

#replace_entities ⇒ Object

Should this parser replace entities? & will get converted to ‘&’ if set to true



166
167
168
169
170
171
172
173
174
175
176
177
 
# File 'ext/nokogiri/xml_sax_parser_context.c', line 166

static VALUE
get_replace_entities(VALUE self)
{
  xmlParserCtxtPtr ctxt;
  Data_Get_Struct(self, xmlParserCtxt, ctxt);

  if (0 == ctxt->replaceEntities) {
    return Qfalse;
  } else {
    return Qtrue;
  }
}

#replace_entities=(boolean) ⇒ Object

Should this parser replace entities? & will get converted to ‘&’ if set to true



144
145
146
147
148
149
150
151
152
153
154
155
156
157
 
# File 'ext/nokogiri/xml_sax_parser_context.c', line 144

static VALUE
set_replace_entities(VALUE self, VALUE value)
{
  xmlParserCtxtPtr ctxt;
  Data_Get_Struct(self, xmlParserCtxt, ctxt);

  if (Qfalse == value) {
    ctxt->replaceEntities = 0;
  } else {
    ctxt->replaceEntities = 1;
  }

  return value;
}