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)); if (ctxt->sax) { xmlFree(ctxt->sax); ctxt->sax = NULL; } return noko_xml_sax_parser_context_wrap(klass, ctxt); }
Parse io
object with encoding
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) { rb_raise(rb_eRuntimeError, "failed to create xml sax parser context"); } if (ctxt->sax) { xmlFree(ctxt->sax); ctxt->sax = NULL; } return noko_xml_sax_parser_context_wrap(klass, ctxt); }
Parse the XML
stored in memory in data
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 noko_xml_sax_parser_context_wrap(klass, ctxt); }
# 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
Public Instance Methods
Get the current column the parser context is processing.
static VALUE column(VALUE self) { xmlParserCtxtPtr ctxt = noko_xml_sax_parser_context_unwrap(self); xmlParserInputPtr io; 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) { xmlParserInputPtr io; xmlParserCtxtPtr ctxt = noko_xml_sax_parser_context_unwrap(self); 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"); } ctxt = noko_xml_sax_parser_context_unwrap(self); sax = noko_sax_handler_unwrap(sax_handler); 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; }
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 = noko_xml_sax_parser_context_unwrap(self); 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 = noko_xml_sax_parser_context_unwrap(self); 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 = noko_xml_sax_parser_context_unwrap(self); 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 = noko_xml_sax_parser_context_unwrap(self); if (Qfalse == value) { ctxt->replaceEntities = 0; } else { ctxt->replaceEntities = 1; } return value; }