class Nokogiri::XML::SAX::ParserContext
Context for XML SAX parsers. This class is usually not instantiated by the user. Instead, you should be looking at Nokogiri::XML::SAX::Parser
Public Class Methods
Parse file given filename
static VALUE parse_file(VALUE klass, VALUE filename)
{
xmlParserCtxtPtr ctxt = xmlCreateFileParserCtxt(StringValueCStr(filename));
return Data_Wrap_Struct(klass, NULL, deallocate, ctxt);
}
Parse io object with encoding
static VALUE
parse_io(VALUE klass, VALUE io, VALUE encoding)
{
xmlParserCtxtPtr ctxt;
xmlCharEncoding enc = (xmlCharEncoding)NUM2INT(encoding);
ctxt = xmlCreateIOParserCtxt(NULL, NULL,
(xmlInputReadCallback)io_read_callback,
(xmlInputCloseCallback)io_close_callback,
(void *)io, enc);
if (ctxt->sax) {
xmlFree(ctxt->sax);
ctxt->sax = NULL;
}
return Data_Wrap_Struct(klass, NULL, deallocate, ctxt);
}
Parse the XML stored in memory in
data
static VALUE
parse_memory(VALUE klass, VALUE data)
{
xmlParserCtxtPtr ctxt;
if (NIL_P(data))
rb_raise(rb_eArgError, "data cannot be nil");
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);
}
# File lib/nokogiri/xml/sax/parser_context.rb, line 9 def self.new thing, encoding = 'UTF-8' [:read, :close].all? { |x| thing.respond_to?(x) } ? io(thing, Parser::ENCODINGS[encoding]) : memory(thing) end
Public Instance Methods
Get the current column the parser context is processing.
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;
}
Get the current line the parser context is processing.
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;
}
Use sax_handler and parse the current document
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);
rb_ensure(parse_doc, (VALUE)ctxt, parse_doc_finalize, (VALUE)ctxt);
return Qnil;
}
Should this parser recover from structural errors? It will not stop processing file on structural errors if set to true
static VALUE get_recovery(VALUE self)
{
xmlParserCtxtPtr ctxt;
Data_Get_Struct(self, xmlParserCtxt, ctxt);
if(ctxt->recovery == 0)
return Qfalse;
else
return Qtrue;
}
Should this parser recover from structural errors? It will not stop processing file on structural errors if set to true
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;
}
Should this parser replace entities? & will get converted to '&' if set to true
static VALUE get_replace_entities(VALUE self)
{
xmlParserCtxtPtr ctxt;
Data_Get_Struct(self, xmlParserCtxt, ctxt);
if(0 == ctxt->replaceEntities)
return Qfalse;
else
return Qtrue;
}
Should this parser replace entities? & will get converted to '&' if set to true
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;
}