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Re: [Grammatica-users] Negation in production rules

From: Oliver Gramberg
Subject: Re: [Grammatica-users] Negation in production rules
Date: Tue, 4 May 2010 12:34:43 +0200

Hello Andrew,

try this (header omitted, output at the end):

---------------------------------------------------------------------
%tokens%

colon = ':'
equals = '='
lbracket = '['
rbracket = ']'

string_literal = <<"[^"]*">>
integer_literal = <<[0-9]+>>
real_literal = <<-?[0-9]+\.[0-9]+>>
identifier = <<[A-Z][A-Z0-9_]*>>

whitespace = <<[ \t]+>> %ignore%
newline = <<[\n\r]+>>


%productions%

start = line+ ;
line = contents? newline ;
contents = key '=' values? | values ;
key = identifier ( ':' identifier )? ( '[' integer_literal ']' )? ;
values = value+ ;
value = string_literal | integer_literal | real_literal | identifier ;
---------------------------------------------------------------------

Feel free to come back with questions!
Regards
Oliver

---------------------------------------------------------------------
Parse tree from notakey.sample:
start(2001)
  line(2002)
    contents(2003)
      key(2004)
        identifier(1008): "DATE", line: 1, col: 1
      equals(1002): "=", line: 1, col: 5
      values(2005)
        value(2006)
          string_literal(1005): ""Thu Apr 22 20:41:15 2010"", line: 1, col: 6
    newline(1010): "(...)", line: 1, col: 32
  line(2002)
    contents(2003)
      key(2004)
        identifier(1008): "METHOD", line: 3, col: 1
      equals(1002): "=", line: 3, col: 7
      values(2005)
        value(2006)
          identifier(1008): "AM1", line: 3, col: 8
    newline(1010): "(...)", line: 3, col: 11
  line(2002)
    contents(2003)
      key(2004)
        identifier(1008): "TITLE", line: 5, col: 1
      equals(1002): "=", line: 5, col: 6
      values(2005)
        value(2006)
          string_literal(1005): ""Untitled-1"", line: 5, col: 7
    newline(1010): "(...)", line: 5, col: 19
  line(2002)
    contents(2003)
      key(2004)
        identifier(1008): "KEYWORDS", line: 7, col: 1
      equals(1002): "=", line: 7, col: 9
      values(2005)
        value(2006)
          string_literal(1005): "" AUX AM1 ALLVEC CHARGE=0 (...)", line: 7, col: 10
    newline(1010): "(...)", line: 7, col: 93
  line(2002)
    contents(2003)
      key(2004)
        identifier(1008): "COMMENTS", line: 9, col: 1
      equals(1002): "=", line: 9, col: 9
      values(2005)
        value(2006)
          string_literal(1005): """", line: 9, col: 10
    newline(1010): "(...)", line: 9, col: 12
  line(2002)
    contents(2003)
      key(2004)
        identifier(1008): "ATOM_EL", line: 11, col: 1
        key(2)(3002)
          lbracket(1003): "[", line: 11, col: 8
          integer_literal(1006): "0008", line: 11, col: 9
          rbracket(1004): "]", line: 11, col: 13
      equals(1002): "=", line: 11, col: 14
    newline(1010): "(...)", line: 11, col: 15
  line(2002)
    contents(2003)
      values(2005)
        value(2006)
          identifier(1008): "C", line: 13, col: 1
        value(2006)
          identifier(1008): "C", line: 13, col: 3
        value(2006)
          identifier(1008): "H", line: 13, col: 5
        value(2006)
          identifier(1008): "H", line: 13, col: 7
        value(2006)
          identifier(1008): "H", line: 13, col: 9
        value(2006)
          identifier(1008): "H", line: 13, col: 11
        value(2006)
          identifier(1008): "H", line: 13, col: 13
        value(2006)
          identifier(1008): "H", line: 13, col: 15
    newline(1010): "(...)", line: 13, col: 16
  line(2002)
    contents(2003)
      key(2004)
        identifier(1008): "ATOM_CORE", line: 15, col: 1
        key(2)(3002)
          lbracket(1003): "[", line: 15, col: 10
          integer_literal(1006): "0008", line: 15, col: 11
          rbracket(1004): "]", line: 15, col: 15
      equals(1002): "=", line: 15, col: 16
    newline(1010): "(...)", line: 15, col: 17
  line(2002)
    contents(2003)
      values(2005)
        value(2006)
          integer_literal(1006): "4", line: 17, col: 1
        value(2006)
          integer_literal(1006): "4", line: 17, col: 3
        value(2006)
          integer_literal(1006): "1", line: 17, col: 5
        value(2006)
          integer_literal(1006): "1", line: 17, col: 7
        value(2006)
          integer_literal(1006): "1", line: 17, col: 9
        value(2006)
          integer_literal(1006): "1", line: 17, col: 11
        value(2006)
          integer_literal(1006): "1", line: 17, col: 13
        value(2006)
          integer_literal(1006): "1", line: 17, col: 15
    newline(1010): "(...)", line: 17, col: 16
  line(2002)
    contents(2003)
      key(2004)
        identifier(1008): "ATOM_X", line: 19, col: 1
        key(1)(3001)
          colon(1001): ":", line: 19, col: 7
          identifier(1008): "ANGSTROMS", line: 19, col: 8
        key(2)(3002)
          lbracket(1003): "[", line: 19, col: 17
          integer_literal(1006): "0024", line: 19, col: 18
          rbracket(1004): "]", line: 19, col: 22
      equals(1002): "=", line: 19, col: 23
    newline(1010): "(...)", line: 19, col: 24
  line(2002)
    contents(2003)
      values(2005)
        value(2006)
          real_literal(1007): "-0.3893", line: 21, col: 1
        value(2006)
          real_literal(1007): "0.6545", line: 21, col: 9
        value(2006)
          real_literal(1007): "0.0000", line: 21, col: 16
    newline(1010): "(...)", line: 21, col: 22
  line(2002)
    contents(2003)
      values(2005)
        value(2006)
          real_literal(1007): "0.3893", line: 23, col: 1
        value(2006)
          real_literal(1007): "-0.6545", line: 23, col: 8
        value(2006)
          real_literal(1007): "0.0000", line: 23, col: 16
    newline(1010): "(...)", line: 23, col: 22
  line(2002)
    contents(2003)
      values(2005)
        value(2006)
          real_literal(1007): "0.3150", line: 25, col: 1
        value(2006)
          real_literal(1007): "1.5163", line: 25, col: 8
        value(2006)
          real_literal(1007): "0.0000", line: 25, col: 15
    newline(1010): "(...)", line: 25, col: 21
  line(2002)
    contents(2003)
      values(2005)
        value(2006)
          real_literal(1007): "-1.0344", line: 27, col: 1
        value(2006)
          real_literal(1007): "0.7137", line: 27, col: 9
        value(2006)
          real_literal(1007): "0.9050", line: 27, col: 16
    newline(1010): "(...)", line: 27, col: 22
  line(2002)
    contents(2003)
      values(2005)
        value(2006)
          real_literal(1007): "-1.0344", line: 29, col: 1
        value(2006)
          real_literal(1007): "0.7137", line: 29, col: 9
        value(2006)
          real_literal(1007): "-0.9050", line: 29, col: 16
    newline(1010): "(...)", line: 29, col: 23
  line(2002)
    contents(2003)
      values(2005)
        value(2006)
          real_literal(1007): "-0.3150", line: 31, col: 1
        value(2006)
          real_literal(1007): "-1.5163", line: 31, col: 9
        value(2006)
          real_literal(1007): "0.0000", line: 31, col: 17
    newline(1010): "(...)", line: 31, col: 23
  line(2002)
    contents(2003)
      values(2005)
        value(2006)
          real_literal(1007): "1.0344", line: 33, col: 1
        value(2006)
          real_literal(1007): "-0.7137", line: 33, col: 8
        value(2006)
          real_literal(1007): "0.9050", line: 33, col: 16
    newline(1010): "(...)", line: 33, col: 22
  line(2002)
    contents(2003)
      values(2005)
        value(2006)
          real_literal(1007): "1.0344", line: 35, col: 1
        value(2006)
          real_literal(1007): "-0.7137", line: 35, col: 8
        value(2006)
          real_literal(1007): "-0.9050", line: 35, col: 16
    newline(1010): "(...)", line: 35, col: 23
  line(2002)
    contents(2003)
      key(2004)
        identifier(1008): "AO_ATOMINDEX", line: 37, col: 1
        key(2)(3002)
          lbracket(1003): "[", line: 37, col: 13
          integer_literal(1006): "0014", line: 37, col: 14
          rbracket(1004): "]", line: 37, col: 18
      equals(1002): "=", line: 37, col: 19
    newline(1010): "(...)", line: 37, col: 20
  line(2002)
    contents(2003)
      values(2005)
        value(2006)
          integer_literal(1006): "1", line: 39, col: 1
        value(2006)
          integer_literal(1006): "1", line: 39, col: 3
        value(2006)
          integer_literal(1006): "1", line: 39, col: 5
        value(2006)
          integer_literal(1006): "1", line: 39, col: 7
        value(2006)
          integer_literal(1006): "2", line: 39, col: 9
        value(2006)
          integer_literal(1006): "2", line: 39, col: 11
        value(2006)
          integer_literal(1006): "2", line: 39, col: 13
        value(2006)
          integer_literal(1006): "2", line: 39, col: 15
        value(2006)
          integer_literal(1006): "3", line: 39, col: 17
        value(2006)
          integer_literal(1006): "4", line: 39, col: 19
        value(2006)
          integer_literal(1006): "5", line: 39, col: 21
        value(2006)
          integer_literal(1006): "6", line: 39, col: 23
        value(2006)
          integer_literal(1006): "7", line: 39, col: 25
        value(2006)
          integer_literal(1006): "8", line: 39, col: 27
    newline(1010): "(...)", line: 39, col: 28
...
---------------------------------------------------------------------
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