protected void inlineParser()

in xalan/src/main/java/org/apache/xalan/lib/sql/SQLQueryParser.java [300:439]
115 lines of code
43 McCabe index (conditional complexity)

  protected void inlineParser()
  {
    QueryParameter  curParm = null;
    int	            state = 0;
    StringBuffer    tok = new StringBuffer();
    boolean         firstword = true;

    if (m_Parameters == null) m_Parameters = new Vector();

    if (m_ParsedQuery == null) m_ParsedQuery = new StringBuffer();

    for ( int idx = 0 ; idx < m_OrigQuery.length() ; idx++ )
    {
      char ch = m_OrigQuery.charAt(idx);
      switch ( state )
      {

        case	0:	// Normal
          if ( ch == '\'' ) state = 1;
          else if ( ch == '?' ) state = 4;
          else if ( firstword && (Character.isLetterOrDigit(ch) || ch == '#') )
          {
            tok.append(ch);
            state = 3;
          }
          m_ParsedQuery.append(ch);
          break;

        case	1:	// In String
          if ( ch == '\'' ) state = 0;
          else if ( ch == '\\' ) state = 2;
          m_ParsedQuery.append(ch);
          break;

        case	2:	// In escape
          state = 1;
          m_ParsedQuery.append(ch);
          break;

        case	3:	// First word
          if ( Character.isLetterOrDigit(ch) || ch == '#' || ch == '_' ) tok.append(ch);
          else
          {
            if ( tok.toString().equalsIgnoreCase("call") )
            {
              m_IsCallable = true;
              if ( curParm != null )
              {
                // returnParm = true;
                curParm.setIsOutput(true);
                // hasOutput = true;
              }
            }
            firstword = false;
            tok = new StringBuffer();
            if ( ch == '\'' ) state = 1;
            else if ( ch == '?' ) state = 4;
            else state = 0;
          }

          m_ParsedQuery.append(ch);
          break;

        case	4:	// Get variable definition
          if ( ch == '[' ) state = 5;
          break;

        case	5:	// Read variable type.
          if ( !Character.isWhitespace(ch) && ch != '=' )
          {
            tok.append(Character.toUpperCase(ch));
          }
          else if ( tok.length() > 0 )
          {
            // OK we have at least one parameter.
            m_HasParameters = true;

            curParm = new QueryParameter();

            curParm.setTypeName(tok.toString());
//            curParm.type = map_type(curParm.typeName);
            m_Parameters.addElement(curParm);
            tok = new StringBuffer();
            if ( ch == '=' ) state = 7;
            else state = 6;
          }
          break;

        case	6:	// Look for '='
          if ( ch == '=' ) state = 7;
          break;

        case	7:	// Read variable name.
          if ( !Character.isWhitespace(ch) && ch != ']' ) tok.append(ch);
          else if ( tok.length() > 0 )
          {
            curParm.setName(tok.toString());
            tok = new StringBuffer();
            if ( ch == ']' )
            {
              //param_output.addElement(new Boolean(false));
              state = 0;
            }
            else state = 8;
          }
          break;

        case	8:	// Look for "OUTput.
          if ( !Character.isWhitespace(ch) && ch != ']' )
          {
            tok.append(ch);
          }
          else if ( tok.length() > 0 )
          {
            tok.setLength(3);
            if ( tok.toString().equalsIgnoreCase("OUT") )
            {
              curParm.setIsOutput(true);
              m_hasOutput = true;
            }

            tok = new StringBuffer();
            if ( ch == ']' )
            {
              state = 0;
            }
          }
          break;
      }
    }


    // Prepare statement or call.
    if ( m_IsCallable )
    {
      m_ParsedQuery.insert(0, '{');
      m_ParsedQuery.append('}');
    }

  }