1 files changed, 0 insertions, 67 deletions
diff --git a/trunk/src/examples/simpleArith.py b/trunk/src/examples/simpleArith.py
deleted file mode 100644
index 825956b..0000000
--- a/trunk/src/examples/simpleArith.py
+++ /dev/null
@@ -1,67 +0,0 @@
-#
-# simpleArith.py
-#
-# Example of defining an arithmetic expression parser using
-# the infixNotation helper method in pyparsing.
-#
-# Copyright 2006, by Paul McGuire
-#
-
-from pyparsing import *
-
-integer = Word(nums).setParseAction(lambda t:int(t[0]))
-variable = Word(alphas,exact=1)
-operand = integer | variable
-
-expop = Literal('^')
-signop = oneOf('+ -')
-multop = oneOf('* /')
-plusop = oneOf('+ -')
-factop = Literal('!')
-
-# To use the infixNotation helper:
-#   1.  Define the "atom" operand term of the grammar.
-#       For this simple grammar, the smallest operand is either
-#       and integer or a variable.  This will be the first argument
-#       to the infixNotation method.
-#   2.  Define a list of tuples for each level of operator
-#       precendence.  Each tuple is of the form
-#       (opExpr, numTerms, rightLeftAssoc, parseAction), where
-#       - opExpr is the pyparsing expression for the operator;
-#          may also be a string, which will be converted to a Literal
-#       - numTerms is the number of terms for this operator (must
-#          be 1 or 2)
-#       - rightLeftAssoc is the indicator whether the operator is
-#          right or left associative, using the pyparsing-defined
-#          constants opAssoc.RIGHT and opAssoc.LEFT.
-#       - parseAction is the parse action to be associated with 
-#          expressions matching this operator expression (the
-#          parse action tuple member may be omitted)
-#   3.  Call infixNotation passing the operand expression and
-#       the operator precedence list, and save the returned value
-#       as the generated pyparsing expression.  You can then use
-#       this expression to parse input strings, or incorporate it
-#       into a larger, more complex grammar.
-#       
-expr = infixNotation( operand,
-    [("!", 1, opAssoc.LEFT),
-     ("^", 2, opAssoc.RIGHT),
-     (signop, 1, opAssoc.RIGHT),
-     (multop, 2, opAssoc.LEFT),
-     (plusop, 2, opAssoc.LEFT),]
-    )
-
-test = ["9 + 2 + 3",
-        "9 + 2 * 3",
-        "(9 + 2) * 3",
-        "(9 + -2) * 3",
-        "(9 + -2) * 3^2^2",
-        "(9! + -2) * 3^2^2",
-        "M*X + B",
-        "M*(X + B)",
-        "1+2*-3^4*5+-+-6",]
-for t in test:
-    print(t)
-    print(expr.parseString(t))
-    print('') 
-