Function my_xpath_parse_RelationalOperator

sql/item_xmlfunc.cc:2177–2192

Scan Relational Expression SYNOPSYS [24] RelationalExpr ::= AdditiveExpr | RelationalExpr '<' AdditiveExpr | RelationalExpr '>' AdditiveExpr | RelationalExpr '<=' AdditiveExpr | RelationalExpr '>=' AdditiveExpr or in other words: [24] RelationalExpr ::= AdditiveExpr (Rel

    0 - failure
*/
static int my_xpath_parse_RelationalOperator(MY_XPATH *xpath)
{
  if (my_xpath_parse_term(xpath, MY_XPATH_LEX_LESS))
  {
    xpath->extra= my_xpath_parse_term(xpath, MY_XPATH_LEX_EQ) ? 
                  MY_XPATH_LEX_LE : MY_XPATH_LEX_LESS;
    return 1;
  }
  else if (my_xpath_parse_term(xpath, MY_XPATH_LEX_GREATER))
  {
    xpath->extra= my_xpath_parse_term(xpath, MY_XPATH_LEX_EQ) ?
                  MY_XPATH_LEX_GE : MY_XPATH_LEX_GREATER;
    return 1;
  }
  return 0;
}
static int my_xpath_parse_RelationalExpr(MY_XPATH *xpath)
{
  MY_XPATH_LEX operator_context;