Remove incorrect tag directorypyparsing_2.1.6

git-svn-id: svn://svn.code.sf.net/p/pyparsing/code/tags/pyparsing_2.1.6@405 9bf210a0-9d2d-494c-87cf-cfb32e7dff7b

1 files changed, 0 insertions, 67 deletions

diff --git a/trunk/src/examples/simpleArith.py b/trunk/src/examples/simpleArith.py
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--- a/trunk/src/examples/simpleArith.py
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-#

-# 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('') 

-