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      1 """ANTLR3 runtime package"""
      2 
      3 # begin[licence]
      4 #
      5 # [The "BSD licence"]
      6 # Copyright (c) 2005-2008 Terence Parr
      7 # All rights reserved.
      8 #
      9 # Redistribution and use in source and binary forms, with or without
     10 # modification, are permitted provided that the following conditions
     11 # are met:
     12 # 1. Redistributions of source code must retain the above copyright
     13 #    notice, this list of conditions and the following disclaimer.
     14 # 2. Redistributions in binary form must reproduce the above copyright
     15 #    notice, this list of conditions and the following disclaimer in the
     16 #    documentation and/or other materials provided with the distribution.
     17 # 3. The name of the author may not be used to endorse or promote products
     18 #    derived from this software without specific prior written permission.
     19 #
     20 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22 # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23 # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25 # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30 #
     31 # end[licence]
     32 
     33 EOF = -1
     34 
     35 ## All tokens go to the parser (unless skip() is called in that rule)
     36 # on a particular "channel".  The parser tunes to a particular channel
     37 # so that whitespace etc... can go to the parser on a "hidden" channel.
     38 DEFAULT_CHANNEL = 0
     39 
     40 ## Anything on different channel than DEFAULT_CHANNEL is not parsed
     41 # by parser.
     42 HIDDEN_CHANNEL = 99
     43 
     44 # Predefined token types
     45 EOR_TOKEN_TYPE = 1
     46 
     47 ##
     48 # imaginary tree navigation type; traverse "get child" link
     49 DOWN = 2
     50 ##
     51 #imaginary tree navigation type; finish with a child list
     52 UP = 3
     53 
     54 MIN_TOKEN_TYPE = UP+1
     55 	
     56 INVALID_TOKEN_TYPE = 0
     57 
     58