AT = '@'
EQU = '='
SEMIC = ';'
LBRKT = '('
COMMENT = '//'
A_COMMAND = 'A_COMMAND'
C_COMMAND = 'C_COMMAND'
L_COMMAND = 'L_COMMAND'
EMPTY_STRING = 0
CORRECT_SYNTAX = 1
COMMAND_START = 1
COMMAND_ENDS = -1
DEST = 0
COMP = 0
COMP_JUMP = 1
JUMP = 1
RESET_INDEX = 0

class Parser:
    """
    ASM file parser class implementation
    """
    def __init__(self, file):
        self.fileLines = [l.split(COMMENT)[0].strip() for l in file.readlines()
                          if not l.strip().startswith(COMMENT)
                          and len(l.strip()) > EMPTY_STRING]
        self.currentIndex = 0
        self.currentCommand = ''
        self.currCommType = ''
        self.updateCurrentCommand()

    def hasMoreCommands(self):
        """
        Checks if there are more commands to process.
        :return: true if there are more commands; false otherwise.
        """
        return self.currentIndex < len(self.fileLines)

    def advance(self):
        """
        Advances the current command pointer to the next command
        """
        self.currentIndex += 1
        self.updateCurrentCommand()

    def updateCurrentCommand(self):
        """
        Updates variables associated with the current command, such as its type
        and the string itself.
        """
        if not self.hasMoreCommands():
            return
        self.currentCommand = \
            self.fileLines[self.currentIndex % len(self.fileLines)]
        self.currCommType = self.commandType()

    def getCurrentType(self):
        """
        Returns current command type.
        """
        return self.currCommType

    def resetCount(self):
        """
        Resets the current command pointer
        """
        self.currentIndex = 0
        self.updateCurrentCommand()

    def commandType(self):
        """
        Returns the type of the current command
        :return: A_COMMAND, L_COMMAND or C_COMMAND
        """
        if self.currentCommand.startswith(AT) and len(self.currentCommand) > 1:
            return A_COMMAND

        elif self.currentCommand.startswith(LBRKT):
            return L_COMMAND

        elif EQU in self.currentCommand or SEMIC in self.currentCommand:
            return C_COMMAND

    def symbol(self):
        """
        Returns the symbol for address commands and labels
        :return: symbol string
        """
        if self.currCommType is A_COMMAND:
            return self.currentCommand[COMMAND_START:].strip()

        elif self.currCommType is L_COMMAND:
            return self.currentCommand[COMMAND_START:COMMAND_ENDS].strip()

    def dest(self):
        """
        Returns the dest part of a C-command
        :return: dest string
        """
        if EQU in self.currentCommand:
            return self.currentCommand.split(EQU)[DEST].strip()

    def comp(self):
        """
        Returns the comp part of a C-command
        :return: comp string
        """
        if self.currCommType is C_COMMAND:
            if EQU in self.currentCommand:
                return self.currentCommand.\
                    split(EQU)[COMP_JUMP].\
                    split(SEMIC)[COMP].strip()

            else:
                return self.currentCommand.split(SEMIC)[0].strip()

    def jump(self):
        """
        Returns the jump part of a C-command
        :return: jump string
        """
        if self.commandType() is C_COMMAND and SEMIC in self.currentCommand:
            return self.currentCommand.split(SEMIC)[JUMP].strip()

d5a9e0e4cc5ecbcea7c7f52c05b8e663cfe810c9
<mask token>


class Parser:
    <mask token>

    def __init__(self, file):
        self.fileLines = [l.split(COMMENT)[0].strip() for l in file.
            readlines() if not l.strip().startswith(COMMENT) and len(l.
            strip()) > EMPTY_STRING]
        self.currentIndex = 0
        self.currentCommand = ''
        self.currCommType = ''
        self.updateCurrentCommand()
    <mask token>
    <mask token>
    <mask token>

    def getCurrentType(self):
        """
        Returns current command type.
        """
        return self.currCommType

    def resetCount(self):
        """
        Resets the current command pointer
        """
        self.currentIndex = 0
        self.updateCurrentCommand()

    def commandType(self):
        """
        Returns the type of the current command
        :return: A_COMMAND, L_COMMAND or C_COMMAND
        """
        if self.currentCommand.startswith(AT) and len(self.currentCommand) > 1:
            return A_COMMAND
        elif self.currentCommand.startswith(LBRKT):
            return L_COMMAND
        elif EQU in self.currentCommand or SEMIC in self.currentCommand:
            return C_COMMAND
    <mask token>

    def dest(self):
        """
        Returns the dest part of a C-command
        :return: dest string
        """
        if EQU in self.currentCommand:
            return self.currentCommand.split(EQU)[DEST].strip()
    <mask token>
    <mask token>

<mask token>


class Parser:
    <mask token>

    def __init__(self, file):
        self.fileLines = [l.split(COMMENT)[0].strip() for l in file.
            readlines() if not l.strip().startswith(COMMENT) and len(l.
            strip()) > EMPTY_STRING]
        self.currentIndex = 0
        self.currentCommand = ''
        self.currCommType = ''
        self.updateCurrentCommand()

    def hasMoreCommands(self):
        """
        Checks if there are more commands to process.
        :return: true if there are more commands; false otherwise.
        """
        return self.currentIndex < len(self.fileLines)

    def advance(self):
        """
        Advances the current command pointer to the next command
        """
        self.currentIndex += 1
        self.updateCurrentCommand()
    <mask token>

    def getCurrentType(self):
        """
        Returns current command type.
        """
        return self.currCommType

    def resetCount(self):
        """
        Resets the current command pointer
        """
        self.currentIndex = 0
        self.updateCurrentCommand()

    def commandType(self):
        """
        Returns the type of the current command
        :return: A_COMMAND, L_COMMAND or C_COMMAND
        """
        if self.currentCommand.startswith(AT) and len(self.currentCommand) > 1:
            return A_COMMAND
        elif self.currentCommand.startswith(LBRKT):
            return L_COMMAND
        elif EQU in self.currentCommand or SEMIC in self.currentCommand:
            return C_COMMAND

    def symbol(self):
        """
        Returns the symbol for address commands and labels
        :return: symbol string
        """
        if self.currCommType is A_COMMAND:
            return self.currentCommand[COMMAND_START:].strip()
        elif self.currCommType is L_COMMAND:
            return self.currentCommand[COMMAND_START:COMMAND_ENDS].strip()

    def dest(self):
        """
        Returns the dest part of a C-command
        :return: dest string
        """
        if EQU in self.currentCommand:
            return self.currentCommand.split(EQU)[DEST].strip()
    <mask token>

    def jump(self):
        """
        Returns the jump part of a C-command
        :return: jump string
        """
        if self.commandType() is C_COMMAND and SEMIC in self.currentCommand:
            return self.currentCommand.split(SEMIC)[JUMP].strip()

<mask token>


class Parser:
    <mask token>

    def __init__(self, file):
        self.fileLines = [l.split(COMMENT)[0].strip() for l in file.
            readlines() if not l.strip().startswith(COMMENT) and len(l.
            strip()) > EMPTY_STRING]
        self.currentIndex = 0
        self.currentCommand = ''
        self.currCommType = ''
        self.updateCurrentCommand()

    def hasMoreCommands(self):
        """
        Checks if there are more commands to process.
        :return: true if there are more commands; false otherwise.
        """
        return self.currentIndex < len(self.fileLines)

    def advance(self):
        """
        Advances the current command pointer to the next command
        """
        self.currentIndex += 1
        self.updateCurrentCommand()

    def updateCurrentCommand(self):
        """
        Updates variables associated with the current command, such as its type
        and the string itself.
        """
        if not self.hasMoreCommands():
            return
        self.currentCommand = self.fileLines[self.currentIndex % len(self.
            fileLines)]
        self.currCommType = self.commandType()

    def getCurrentType(self):
        """
        Returns current command type.
        """
        return self.currCommType

    def resetCount(self):
        """
        Resets the current command pointer
        """
        self.currentIndex = 0
        self.updateCurrentCommand()

    def commandType(self):
        """
        Returns the type of the current command
        :return: A_COMMAND, L_COMMAND or C_COMMAND
        """
        if self.currentCommand.startswith(AT) and len(self.currentCommand) > 1:
            return A_COMMAND
        elif self.currentCommand.startswith(LBRKT):
            return L_COMMAND
        elif EQU in self.currentCommand or SEMIC in self.currentCommand:
            return C_COMMAND

    def symbol(self):
        """
        Returns the symbol for address commands and labels
        :return: symbol string
        """
        if self.currCommType is A_COMMAND:
            return self.currentCommand[COMMAND_START:].strip()
        elif self.currCommType is L_COMMAND:
            return self.currentCommand[COMMAND_START:COMMAND_ENDS].strip()

    def dest(self):
        """
        Returns the dest part of a C-command
        :return: dest string
        """
        if EQU in self.currentCommand:
            return self.currentCommand.split(EQU)[DEST].strip()
    <mask token>

    def jump(self):
        """
        Returns the jump part of a C-command
        :return: jump string
        """
        if self.commandType() is C_COMMAND and SEMIC in self.currentCommand:
            return self.currentCommand.split(SEMIC)[JUMP].strip()

<mask token>


class Parser:
    <mask token>

    def __init__(self, file):
        self.fileLines = [l.split(COMMENT)[0].strip() for l in file.
            readlines() if not l.strip().startswith(COMMENT) and len(l.
            strip()) > EMPTY_STRING]
        self.currentIndex = 0
        self.currentCommand = ''
        self.currCommType = ''
        self.updateCurrentCommand()

    def hasMoreCommands(self):
        """
        Checks if there are more commands to process.
        :return: true if there are more commands; false otherwise.
        """
        return self.currentIndex < len(self.fileLines)

    def advance(self):
        """
        Advances the current command pointer to the next command
        """
        self.currentIndex += 1
        self.updateCurrentCommand()

    def updateCurrentCommand(self):
        """
        Updates variables associated with the current command, such as its type
        and the string itself.
        """
        if not self.hasMoreCommands():
            return
        self.currentCommand = self.fileLines[self.currentIndex % len(self.
            fileLines)]
        self.currCommType = self.commandType()

    def getCurrentType(self):
        """
        Returns current command type.
        """
        return self.currCommType

    def resetCount(self):
        """
        Resets the current command pointer
        """
        self.currentIndex = 0
        self.updateCurrentCommand()

    def commandType(self):
        """
        Returns the type of the current command
        :return: A_COMMAND, L_COMMAND or C_COMMAND
        """
        if self.currentCommand.startswith(AT) and len(self.currentCommand) > 1:
            return A_COMMAND
        elif self.currentCommand.startswith(LBRKT):
            return L_COMMAND
        elif EQU in self.currentCommand or SEMIC in self.currentCommand:
            return C_COMMAND

    def symbol(self):
        """
        Returns the symbol for address commands and labels
        :return: symbol string
        """
        if self.currCommType is A_COMMAND:
            return self.currentCommand[COMMAND_START:].strip()
        elif self.currCommType is L_COMMAND:
            return self.currentCommand[COMMAND_START:COMMAND_ENDS].strip()

    def dest(self):
        """
        Returns the dest part of a C-command
        :return: dest string
        """
        if EQU in self.currentCommand:
            return self.currentCommand.split(EQU)[DEST].strip()

    def comp(self):
        """
        Returns the comp part of a C-command
        :return: comp string
        """
        if self.currCommType is C_COMMAND:
            if EQU in self.currentCommand:
                return self.currentCommand.split(EQU)[COMP_JUMP].split(SEMIC)[
                    COMP].strip()
            else:
                return self.currentCommand.split(SEMIC)[0].strip()

    def jump(self):
        """
        Returns the jump part of a C-command
        :return: jump string
        """
        if self.commandType() is C_COMMAND and SEMIC in self.currentCommand:
            return self.currentCommand.split(SEMIC)[JUMP].strip()

AT = '@'
EQU = '='
SEMIC = ';'
LBRKT = '('
COMMENT = '//'
A_COMMAND = 'A_COMMAND'
C_COMMAND = 'C_COMMAND'
L_COMMAND = 'L_COMMAND'
EMPTY_STRING = 0
CORRECT_SYNTAX = 1
COMMAND_START = 1
COMMAND_ENDS = -1
DEST = 0
COMP = 0
COMP_JUMP = 1
JUMP = 1
RESET_INDEX = 0

class Parser:
    """
    ASM file parser class implementation
    """
    def __init__(self, file):
        self.fileLines = [l.split(COMMENT)[0].strip() for l in file.readlines()
                          if not l.strip().startswith(COMMENT)
                          and len(l.strip()) > EMPTY_STRING]
        self.currentIndex = 0
        self.currentCommand = ''
        self.currCommType = ''
        self.updateCurrentCommand()

    def hasMoreCommands(self):
        """
        Checks if there are more commands to process.
        :return: true if there are more commands; false otherwise.
        """
        return self.currentIndex < len(self.fileLines)

    def advance(self):
        """
        Advances the current command pointer to the next command
        """
        self.currentIndex += 1
        self.updateCurrentCommand()

    def updateCurrentCommand(self):
        """
        Updates variables associated with the current command, such as its type
        and the string itself.
        """
        if not self.hasMoreCommands():
            return
        self.currentCommand = \
            self.fileLines[self.currentIndex % len(self.fileLines)]
        self.currCommType = self.commandType()

    def getCurrentType(self):
        """
        Returns current command type.
        """
        return self.currCommType

    def resetCount(self):
        """
        Resets the current command pointer
        """
        self.currentIndex = 0
        self.updateCurrentCommand()

    def commandType(self):
        """
        Returns the type of the current command
        :return: A_COMMAND, L_COMMAND or C_COMMAND
        """
        if self.currentCommand.startswith(AT) and len(self.currentCommand) > 1:
            return A_COMMAND

        elif self.currentCommand.startswith(LBRKT):
            return L_COMMAND

        elif EQU in self.currentCommand or SEMIC in self.currentCommand:
            return C_COMMAND

    def symbol(self):
        """
        Returns the symbol for address commands and labels
        :return: symbol string
        """
        if self.currCommType is A_COMMAND:
            return self.currentCommand[COMMAND_START:].strip()

        elif self.currCommType is L_COMMAND:
            return self.currentCommand[COMMAND_START:COMMAND_ENDS].strip()

    def dest(self):
        """
        Returns the dest part of a C-command
        :return: dest string
        """
        if EQU in self.currentCommand:
            return self.currentCommand.split(EQU)[DEST].strip()

    def comp(self):
        """
        Returns the comp part of a C-command
        :return: comp string
        """
        if self.currCommType is C_COMMAND:
            if EQU in self.currentCommand:
                return self.currentCommand.\
                    split(EQU)[COMP_JUMP].\
                    split(SEMIC)[COMP].strip()

            else:
                return self.currentCommand.split(SEMIC)[0].strip()

    def jump(self):
        """
        Returns the jump part of a C-command
        :return: jump string
        """
        if self.commandType() is C_COMMAND and SEMIC in self.currentCommand:
            return self.currentCommand.split(SEMIC)[JUMP].strip()
