def main(argv=None):
# Get the name of the input file from the command line
if argv is None:
argv = sys.argv
# TODO Uncomment later
fileName = argv[1]
# fileName = 'inputFile.rud'
# fileName = 'Rudi_Test_1.rud'
# Read from a file
allLines = parseInputFile(fileName)
# Check for an error
if not allLines:
return
# Check for an error
if not allLines:
return
# Pass through structure parser
program, variables = parseStructure(allLines)
if not program:
return
# Pass through program parser
program, variables = evaluateLineByLine(program,variables)
return
def main(argv=None):
# Get the name of the input file from the command line
if argv is None:
argv = sys.argv
# TODO Uncomment later
fileName = argv[1]
# fileName = 'inputFile.rud'
# fileName = 'Rudi_Test_1.rud'
# Read from a file
allLines = parseInputFile(fileName)
# Check for an error
if not allLines:
return
# Check for an error
if not allLines:
return
# Pass through structure parser
program, variables = parseStructure(allLines)
if not program:
return
# Pass through program parser
program, variables = evaluateLineByLine(program, variables)
return
from collections import namedtuple
from programParser import evaluateLineByLine
print ("Hello World!")
Line = namedtuple('Line', 'line number')
#program = [Line("input x", number=1), Line(line="input z", number=2), Line(line="if (False) then", number=3), Line(line="[", number=4), Line(line="print \"yay\"", number=5), Line(line="]", number=6), Line(line="else", number=7),Line(line="[", number=8),Line(line="print \"no!\"", number=9),Line(line="]", number=10),Line(line="print \"Not messing up anything else\"", number=11), Line(line="end", number=12)]
program = [Line("input x", number=1), Line(line="z = 2", number=2), Line(line="while (z:le:10)", number=3), Line(line="[", number=4), Line(line="print \"yay while works too\"", number=5), Line(line="z = z + 1", number=6), Line(line="]", number=7), Line(line="print \"Not messing up anything else\"", number=8), Line(line="end", number=9)]
Variable = namedtuple('Variable', 'name value type')
variables = [Variable(name = 'X', value = '', type = "INTEGER"), Variable(name = 'Z', value = '', type = "INTEGER")]
evaluateLineByLine(program, variables)
def evaluateWhile(queue, variables):
# Get the first element of the queue
Line = queue.popleft()
# Get the string from the tuple
whileLine = Line.line
whileLineNumber = Line.number
# Throw an error if line doesn't have '(' followed by ')'
# Check for '('
check = '('
if check not in whileLine:
print("Error in line " + str(whileLineNumber) + ": " + whileLine)
print(
"Description: Opening bracket missing for the while condition expression"
)
else:
index1 = whileLine.index(check)
# Check for ')'
check = ')'
if check not in whileLine:
print("Error in line " + str(whileLineNumber) + ": " + whileLine)
print(
"Description: Closing bracket missing for the while condition expression"
)
else:
index2 = whileLine.index(check)
# Check the order
if index2 < index1:
print("Error in line " + str(whileLineNumber) + ": " + whileLine)
print(
"Description: Brackets incorrect for the while condition expression"
)
# Get the expression between '(' and ')'
whileExpression = whileLine[index1 + 1:index2]
# Send to expression parser to evaluate
verdict = evaluateBooleanExpression(whileExpression, Line, variables)
# CREATE WHILE BLOCK
# Check for '['
# Get next line of the queue
Line = queue.popleft()
expression = Line.line
check = '['
if expression != check:
print("Error in line " + str(Line.number) + ": " + Line.line)
print(
"Description: Opening bracket missing for the while condition block"
)
else:
qIndex1 = 0
# Search queue for ']'. Till it is found, dequeue every line and add it to whileBlockQ
check = ']'
Line = queue.popleft()
whileBlockQ = deque()
bracketCount = 0 # To keep track of nested loops
while (bracketCount <= 0):
# If ']' is not found till the end, throw an error
if ((Line.line).upper() == 'END'):
print("Error in line " + str(whileLineNumber) + ": " + whileLine)
print(
"Description: Closing bracket missing for or within the while condition block"
)
queue.append(Line)
return (queue, variables)
# Keep track of number of opening and closing brackets. Since else block's opening bracket was already checked outside the loop,
# the number of closing brackets will be 1 greater than the opening brackets. So when the count becomes 1, else block's closing
# bracket has been found
if (Line.line) == '[':
bracketCount = bracketCount - 1
elif (Line.line) == ']':
bracketCount = bracketCount + 1
# once the closing bracket is found, do not add it to the else block queue and do not pop the program queue
if bracketCount <= 0:
whileBlockQ.append(Line)
Line = queue.popleft()
# Evaluate the verdict and run the while loop while it evaluates to true
verdict = evaluateBooleanExpression(whileExpression, Line, variables)
while verdict == True:
(_,
variables) = programParser.evaluateLineByLine(whileBlockQ, variables)
# Update verdict
verdict = evaluateBooleanExpression(whileExpression, Line, variables)
return (queue, variables)
def evaluateIf(queue, variables):
# IF LINE SYNTAX CHECK
# Get the first element of the queue
Line = queue.popleft()
# Get the string from the tuple
ifLine = Line.line
ifLineNumber = Line.number
# Convert to upper case for case insensitivity
ifLineUp = ifLine.upper()
# Throw an error if line doesn't have 'then'
check = "THEN"
if check not in ifLineUp:
print("Error in line " + str(ifLineNumber) + ": " + ifLine)
print("Description: Keyword 'then' is missing")
# Throw an error if line doesn't have '(' followed by ')'
# Check for '('
check = '('
if check not in ifLine:
print("Error in line " + str(ifLineNumber) + ": " + ifLine)
print(
"Description: Opening bracket missing for the if condition expression"
)
else:
index1 = ifLine.index(check)
# Check for ')'
check = ')'
if check not in ifLine:
print("Error in line " + str(ifLineNumber) + ": " + ifLine)
print(
"Description: Closing bracket missing for the if condition expression"
)
else:
index2 = ifLine.index(check)
# Check the order
if index2 < index1:
print("Error in line " + str(ifLineNumber) + ": " + ifLine)
print(
"Description: Brackets incorrect for the if condition expression")
# Get the expression between '(' and ')'
ifExpression = ifLine[index1 + 1:index2]
# Send the expression to the boolean expression evaluator
verdict = evaluateBooleanExpression(ifExpression, Line, variables)
# Check for any other garbage
# <TODO> string.replace
# TRack brackets within the if/while expressions
# CREATE IF BLOCK
# Check for '['
Line = queue.popleft()
expression = Line.line
check = '['
if expression != check:
print("Error in line " + str(Line.number) + ": " + Line.line)
print(
"Description: Opening bracket missing for the if condition block")
queue.append(Line)
else:
qIndex1 = 0
# Search queue for ']'. Till the closing bracket of if block is found, dequeue every line and add it to ifBlockQ
check = ']'
Line = queue.popleft()
ifBlockQ = deque()
bracketCount = 0 # To keep track of nested loops
while (bracketCount <= 0):
# If ']' is not found till the end, throw an error
if ((Line.line).upper() == 'END'):
print("Error in line " + str(ifLineNumber) + ": " + ifLine)
print(
"Description: Closing bracket missing for or within the if condition block"
)
queue.append(Line)
return (queue, variables)
# Keep track of number of opening and closing brackets. Since if block's opening bracket was already checked outside the loop,
# the number of closing brackets will be 1 greater than the opening brackets. So when the count becomes 1, if block's closing
# bracket has been found
if (Line.line) == '[':
bracketCount = bracketCount - 1
elif (Line.line) == ']':
bracketCount = bracketCount + 1
# once the closing bracket is found, do not add it to the if block queue and do not pop the program queue
if bracketCount <= 0:
ifBlockQ.append(Line)
Line = queue.popleft()
# Evaluate the if block if verdict is true
if verdict:
(_, variables) = programParser.evaluateLineByLine(ifBlockQ, variables)
# CREATE ELSE BLOCK
Line = queue.popleft()
elseLine = Line.line
elseLineUp = elseLine.upper()
# Check if the next line is an 'end' and return if so
check = 'END'
if check in elseLineUp:
queue.append(Line)
return (queue, variables)
# Check if the next line is an 'else'
check = 'ELSE'
elseFlag = 0
if (elseLineUp == check):
elseFlag = 1
elseLineNumber = Line.number
# Check for '['
# Get next line of the queue
Line = queue.popleft()
expression = Line.line
check = '['
if expression != check:
print("Error in line " + str(Line.number) + ": " + expression)
print(
"Description: Opening bracket missing for the else condition block"
)
else:
qIndex1 = 0
# Search queue for ']'. Till it is found, dequeue every line and add it to elseBlockQ
check = ']'
elseBlockQ = deque()
Line = queue.popleft()
bracketCount = 0 # To keep track of nested loops
while (bracketCount <= 0):
# If ']' is not found till the end, throw an error
if ((Line.line).upper() == 'END'):
print("Error in line " + str(elseLineNumber) + ": " + elseLine)
print(
"Description: Closing bracket missing for or within the else condition block"
)
queue.append(Line)
return (queue, variables)
# Keep track of number of opening and closing brackets. Since else block's opening bracket was already checked outside the loop,
# the number of closing brackets will be 1 greater than the opening brackets. So when the count becomes 1, else block's closing
# bracket has been found
if (Line.line) == '[':
bracketCount = bracketCount - 1
elif (Line.line) == ']':
bracketCount = bracketCount + 1
# once the closing bracket is found, do not add it to the else block queue and do not pop the program queue
if bracketCount <= 0:
elseBlockQ.append(Line)
Line = queue.popleft()
# if 'else' not present append line back to queue and return
else:
queue.append(Line)
return (queue, variables)
if elseFlag == 1 and verdict == False:
(_,
variables) = programParser.evaluateLineByLine(elseBlockQ, variables)
return (queue, variables)
from collections import namedtuple
from programParser import evaluateLineByLine
print("Hello World!")
Line = namedtuple('Line', 'line number')
#program = [Line("input x", number=1), Line(line="input z", number=2), Line(line="if (False) then", number=3), Line(line="[", number=4), Line(line="print \"yay\"", number=5), Line(line="]", number=6), Line(line="else", number=7),Line(line="[", number=8),Line(line="print \"no!\"", number=9),Line(line="]", number=10),Line(line="print \"Not messing up anything else\"", number=11), Line(line="end", number=12)]
program = [
Line("input x", number=1),
Line(line="z = 2", number=2),
Line(line="while (z:le:10)", number=3),
Line(line="[", number=4),
Line(line="print \"yay while works too\"", number=5),
Line(line="z = z + 1", number=6),
Line(line="]", number=7),
Line(line="print \"Not messing up anything else\"", number=8),
Line(line="end", number=9)
]
Variable = namedtuple('Variable', 'name value type')
variables = [
Variable(name='X', value='', type="INTEGER"),
Variable(name='Z', value='', type="INTEGER")
]
evaluateLineByLine(program, variables)
def evaluateWhile(queue, variables):
# Get the first element of the queue
Line = queue.popleft()
# Get the string from the tuple
whileLine = Line.line
whileLineNumber = Line.number
# Throw an error if line doesn't have '(' followed by ')'
# Check for '('
check = "("
if check not in whileLine:
print("Error in line " + str(whileLineNumber) + ": " + whileLine)
print("Description: Opening bracket missing for the while condition expression")
else:
index1 = whileLine.index(check)
# Check for ')'
check = ")"
if check not in whileLine:
print("Error in line " + str(whileLineNumber) + ": " + whileLine)
print("Description: Closing bracket missing for the while condition expression")
else:
index2 = whileLine.index(check)
# Check the order
if index2 < index1:
print("Error in line " + str(whileLineNumber) + ": " + whileLine)
print("Description: Brackets incorrect for the while condition expression")
# Get the expression between '(' and ')'
whileExpression = whileLine[index1 + 1 : index2]
# Send to expression parser to evaluate
verdict = evaluateBooleanExpression(whileExpression, Line, variables)
# CREATE WHILE BLOCK
# Check for '['
# Get next line of the queue
Line = queue.popleft()
expression = Line.line
check = "["
if expression != check:
print("Error in line " + str(Line.number) + ": " + Line.line)
print("Description: Opening bracket missing for the while condition block")
else:
qIndex1 = 0
# Search queue for ']'. Till it is found, dequeue every line and add it to whileBlockQ
check = "]"
Line = queue.popleft()
whileBlockQ = deque()
bracketCount = 0 # To keep track of nested loops
while bracketCount <= 0:
# If ']' is not found till the end, throw an error
if (Line.line).upper() == "END":
print("Error in line " + str(whileLineNumber) + ": " + whileLine)
print("Description: Closing bracket missing for or within the while condition block")
queue.append(Line)
return (queue, variables)
# Keep track of number of opening and closing brackets. Since else block's opening bracket was already checked outside the loop,
# the number of closing brackets will be 1 greater than the opening brackets. So when the count becomes 1, else block's closing
# bracket has been found
if (Line.line) == "[":
bracketCount = bracketCount - 1
elif (Line.line) == "]":
bracketCount = bracketCount + 1
# once the closing bracket is found, do not add it to the else block queue and do not pop the program queue
if bracketCount <= 0:
whileBlockQ.append(Line)
Line = queue.popleft()
# Evaluate the verdict and run the while loop while it evaluates to true
verdict = evaluateBooleanExpression(whileExpression, Line, variables)
while verdict == True:
(_, variables) = programParser.evaluateLineByLine(whileBlockQ, variables)
# Update verdict
verdict = evaluateBooleanExpression(whileExpression, Line, variables)
return (queue, variables)
def evaluateIf(queue, variables):
# IF LINE SYNTAX CHECK
# Get the first element of the queue
Line = queue.popleft()
# Get the string from the tuple
ifLine = Line.line
ifLineNumber = Line.number
# Convert to upper case for case insensitivity
ifLineUp = ifLine.upper()
# Throw an error if line doesn't have 'then'
check = "THEN"
if check not in ifLineUp:
print("Error in line " + str(ifLineNumber) + ": " + ifLine)
print("Description: Keyword 'then' is missing")
# Throw an error if line doesn't have '(' followed by ')'
# Check for '('
check = "("
if check not in ifLine:
print("Error in line " + str(ifLineNumber) + ": " + ifLine)
print("Description: Opening bracket missing for the if condition expression")
else:
index1 = ifLine.index(check)
# Check for ')'
check = ")"
if check not in ifLine:
print("Error in line " + str(ifLineNumber) + ": " + ifLine)
print("Description: Closing bracket missing for the if condition expression")
else:
index2 = ifLine.index(check)
# Check the order
if index2 < index1:
print("Error in line " + str(ifLineNumber) + ": " + ifLine)
print("Description: Brackets incorrect for the if condition expression")
# Get the expression between '(' and ')'
ifExpression = ifLine[index1 + 1 : index2]
# Send the expression to the boolean expression evaluator
verdict = evaluateBooleanExpression(ifExpression, Line, variables)
# Check for any other garbage
# <TODO> string.replace
# TRack brackets within the if/while expressions
# CREATE IF BLOCK
# Check for '['
Line = queue.popleft()
expression = Line.line
check = "["
if expression != check:
print("Error in line " + str(Line.number) + ": " + Line.line)
print("Description: Opening bracket missing for the if condition block")
queue.append(Line)
else:
qIndex1 = 0
# Search queue for ']'. Till the closing bracket of if block is found, dequeue every line and add it to ifBlockQ
check = "]"
Line = queue.popleft()
ifBlockQ = deque()
bracketCount = 0 # To keep track of nested loops
while bracketCount <= 0:
# If ']' is not found till the end, throw an error
if (Line.line).upper() == "END":
print("Error in line " + str(ifLineNumber) + ": " + ifLine)
print("Description: Closing bracket missing for or within the if condition block")
queue.append(Line)
return (queue, variables)
# Keep track of number of opening and closing brackets. Since if block's opening bracket was already checked outside the loop,
# the number of closing brackets will be 1 greater than the opening brackets. So when the count becomes 1, if block's closing
# bracket has been found
if (Line.line) == "[":
bracketCount = bracketCount - 1
elif (Line.line) == "]":
bracketCount = bracketCount + 1
# once the closing bracket is found, do not add it to the if block queue and do not pop the program queue
if bracketCount <= 0:
ifBlockQ.append(Line)
Line = queue.popleft()
# Evaluate the if block if verdict is true
if verdict:
(_, variables) = programParser.evaluateLineByLine(ifBlockQ, variables)
# CREATE ELSE BLOCK
Line = queue.popleft()
elseLine = Line.line
elseLineUp = elseLine.upper()
# Check if the next line is an 'end' and return if so
check = "END"
if check in elseLineUp:
queue.append(Line)
return (queue, variables)
# Check if the next line is an 'else'
check = "ELSE"
elseFlag = 0
if elseLineUp == check:
elseFlag = 1
elseLineNumber = Line.number
# Check for '['
# Get next line of the queue
Line = queue.popleft()
expression = Line.line
check = "["
if expression != check:
print("Error in line " + str(Line.number) + ": " + expression)
print("Description: Opening bracket missing for the else condition block")
else:
qIndex1 = 0
# Search queue for ']'. Till it is found, dequeue every line and add it to elseBlockQ
check = "]"
elseBlockQ = deque()
Line = queue.popleft()
bracketCount = 0 # To keep track of nested loops
while bracketCount <= 0:
# If ']' is not found till the end, throw an error
if (Line.line).upper() == "END":
print("Error in line " + str(elseLineNumber) + ": " + elseLine)
print("Description: Closing bracket missing for or within the else condition block")
queue.append(Line)
return (queue, variables)
# Keep track of number of opening and closing brackets. Since else block's opening bracket was already checked outside the loop,
# the number of closing brackets will be 1 greater than the opening brackets. So when the count becomes 1, else block's closing
# bracket has been found
if (Line.line) == "[":
bracketCount = bracketCount - 1
elif (Line.line) == "]":
bracketCount = bracketCount + 1
# once the closing bracket is found, do not add it to the else block queue and do not pop the program queue
if bracketCount <= 0:
elseBlockQ.append(Line)
Line = queue.popleft()
# if 'else' not present append line back to queue and return
else:
queue.append(Line)
return (queue, variables)
if elseFlag == 1 and verdict == False:
(_, variables) = programParser.evaluateLineByLine(elseBlockQ, variables)
return (queue, variables)