1 files changed, 0 insertions, 118 deletions
diff --git a/trunk/src/examples/SimpleCalc.py b/trunk/src/examples/SimpleCalc.py
deleted file mode 100644
index 46a5dff..0000000
--- a/trunk/src/examples/SimpleCalc.py
+++ /dev/null
@@ -1,118 +0,0 @@
-# SimpleCalc.py
-#
-# Demonstration of the parsing module, 
-# Sample usage
-#
-#     $ python SimpleCalc.py 
-#     Type in the string to be parse or 'quit' to exit the program
-#     > g=67.89 + 7/5 
-#     69.29
-#     > g
-#     69.29
-#     > h=(6*g+8.8)-g 
-#     355.25
-#     > h + 1 
-#     356.25
-#     > 87.89 + 7/5 
-#     89.29
-#     > ans+10
-#     99.29
-#     > quit
-#     Good bye!
-#
-# 
-
-
-
-# Uncomment the line below for readline support on interactive terminal
-# import readline  
-from pyparsing import ParseException, Word, alphas, alphanums
-import math
-
-# Debugging flag can be set to either "debug_flag=True" or "debug_flag=False"
-debug_flag=False
-
-variables = {}
-
-from fourFn import BNF, exprStack, fn, opn
-def evaluateStack( s ):
-    op = s.pop()
-    if op == 'unary -':
-        return -evaluateStack( s )
-    if op in "+-*/^":
-        op2 = evaluateStack( s )
-        op1 = evaluateStack( s )
-        return opn[op]( op1, op2 )
-    elif op == "PI":
-        return math.pi # 3.1415926535
-    elif op == "E":
-        return math.e  # 2.718281828
-    elif op in fn:
-        return fn[op]( evaluateStack( s ) )
-    elif op[0].isalpha():
-        if op in variables:
-            return variables[op]
-        raise Exception("invalid identifier '%s'" % op)
-    else:
-        return float( op )
-
-arithExpr = BNF()
-ident = Word(alphas, alphanums).setName("identifier")
-assignment = ident("varname") + '=' + arithExpr
-pattern = assignment | arithExpr
-
-if __name__ == '__main__':
-  # input_string
-  input_string=''
-  
-  # Display instructions on how to quit the program
-  print("Type in the string to be parsed or 'quit' to exit the program")
-  input_string = input("> ")
-  
-  while input_string != 'quit':
-    if input_string.lower() == 'debug':
-        debug_flag=True
-        input_string = input("> ")
-        continue
-
-    # Reset to an empty exprStack
-    del exprStack[:]
-  
-    if input_string != '':
-      # try parsing the input string
-      try:
-        L=pattern.parseString( input_string, parseAll=True )
-      except ParseException as err:
-        L=['Parse Failure',input_string]
-      
-      # show result of parsing the input string
-      if debug_flag: print(input_string, "->", L)
-      if len(L)==0 or L[0] != 'Parse Failure':
-        if debug_flag: print("exprStack=", exprStack)
-  
-        # calculate result , store a copy in ans , display the result to user
-        try:
-          result=evaluateStack(exprStack)
-        except Exception as e:
-          print(str(e))
-        else:
-          variables['ans']=result
-          print(result)
-      
-          # Assign result to a variable if required
-          if L.varname:
-            variables[L.varname] = result
-          if debug_flag: print("variables=",variables)
-      else:
-        print('Parse Failure')
-        print(err.line)
-        print(" "*(err.column-1) + "^")
-        print(err)
-  
-    # obtain new input string
-    input_string = input("> ")
-  
-  # if user type 'quit' then say goodbye
-  print("Good bye!")
-
-