string TransitionFunction(char c)
{
string ret = STATE_INIT;
XmlStateTransition transition = FindTransition(c);
if (transition != null)
{
if (transition.back == 0)
{
Accumulate(c);
this.current_token.type = transition.state_out;
}
this.current_state = transition.state_out;
this.read_offset -= transition.back;
if (transition.acceptance)
{
this.tokens.Add(this.current_token);
this.current_token = new XmlToken();
this.current_state = STATE_INIT;
}
}
return(ret);
}
public XmlLexer()
{
this.current_state = STATE_INIT;
this.read_offset = 0;
this.current_token = new XmlToken();
this.tokens = new List <XmlToken>();
this.transition_table = new List <XmlStateTransition>();
this.AddStateTransition(STATE_INIT, "'", "STRING");
this.AddStateTransition("STRING", "[^']", "STRING");
this.AddStateTransition("STRING", "'", "STRING", acceptance: true);
this.AddStateTransition(STATE_INIT, "\"", "STRINGD");
this.AddStateTransition("STRINGD", "[^\"]", "STRINGD");
this.AddStateTransition("STRINGD", "\"", "STRINGD", acceptance: true);
this.AddStateTransition(STATE_INIT, "<", "<");
this.AddStateTransition("<", "[?]", "<?");
this.AddStateTransition("<?", "[xX]", "<?x");
this.AddStateTransition("<?x", "[mM]", "<?xm");
this.AddStateTransition("<?xm", "[lL]", "START_PROLOG", acceptance: true);
this.AddStateTransition("<", "!", "DECLARATION");
this.AddStateTransition("DECLARATION", "-", "<!-");
this.AddStateTransition("<!-", "-", "COMMENT", acceptance: true);
//this.AddStateTransition( "DECLARATION" , "[^-]" , STATE_INIT , acceptance:true , back:1 );
// DOCTYPE DTD
this.AddStateTransition("DECLARATION", "[", "<![");
this.AddStateTransition("<![", "C", "<![C");
this.AddStateTransition("<![C", "D", "<![CD");
this.AddStateTransition("<![CD", "A", "<![CDA");
this.AddStateTransition("<![CDA", "T", "<![CDAT");
this.AddStateTransition("<![CDAT", "A", "<![CDATA");
this.AddStateTransition("<![CDATA", "[", "START_CDATA", acceptance: true);
this.AddStateTransition("<", "[/]", "</", acceptance: true);
this.AddStateTransition("<", "[^?!/]", "<", acceptance: true, back: 1);
this.AddStateTransition(STATE_INIT, PATTERN_ALPHANUMERIC, "ALPHA");
this.AddStateTransition("ALPHA", PATTERN_ALPHANUMERIC, "ALPHA");
this.AddStateTransition("ALPHA", PATTERN_NON_ALPHANUMERIC, "ALPHA", true, 1);
this.AddStateTransition(STATE_INIT, "=", "=", acceptance: true);
// CLOSING
this.AddStateTransition(STATE_INIT, "[?]", "?");
this.AddStateTransition("?", ">", "END_PROLOG", acceptance: true);
this.AddStateTransition("]", "]", "]");
this.AddStateTransition("]", "]", "]]");
this.AddStateTransition("]]", ">", "END_CDATA", acceptance: true);
this.AddStateTransition(STATE_INIT, "/", "/");
this.AddStateTransition("/", ">", "/>", acceptance: true);
this.AddStateTransition(STATE_INIT, ">", ">", acceptance: true);
}
