pycons.shell.Shell Class Reference

Public Member Functions
def	__init__ (self, ns_globals={}, ns_locals={})
def	namespace (self)
def	is_balanced (self, line)
def	complete (self, line)
def	eval (self, console)
def	execute (self, console)

Data Fields
	completer
	command
	globals
	locals
	complete_sep
	prompt

Detailed Description

Definition at line 40 of file shell.py.

Constructor & Destructor Documentation

__init__()

def pycons.shell.Shell.__init__	(		self,
			ns_globals = {},
			ns_locals = {}
	)

Definition at line 43 of file shell.py.

    def __init__(self, ns_globals={}, ns_locals={}):
        """ """

        self.completer = rlcompleter.Completer (ns_globals)
        self.command = ''
        self.globals = ns_globals
        self.locals = ns_locals
        self.complete_sep = re.compile(r'[\s\{\}\[\]\(\)]')
        self.prompt = sys.ps1

Member Function Documentation

is_balanced()

def pycons.shell.Shell.is_balanced	(		self,
			line
	)

Checks line balance for brace, bracket, parentheses and string quote

This helper function checks for the balance of brace, bracket,
parentheses and string quote. Any unbalanced line means to wait until
some other lines are fed to the console.

Definition at line 57 of file shell.py.

    def is_balanced (self, line):
        """ Checks line balance for brace, bracket, parentheses and string quote

        This helper function checks for the balance of brace, bracket,
        parentheses and string quote. Any unbalanced line means to wait until
        some other lines are fed to the console.
        """
        
        s = line
        s = list(filter(lambda x: x in '()[]{}"\'', s))
        # s = s.replace ("'''", "'")
        # s = s.replace ('"""', '"')
        instring = False
        brackets = {'(':')', '[':']', '{':'}', '"':'"', '\'':'\''}
        stack = []
        while len(s):
            if not instring:
                if s[0] in ')]}':
                    if stack and brackets[stack[-1]] == s[0]:
                        del stack[-1]
                    else:
                        return False
                elif s[0] in '"\'':
                    if stack and brackets[stack[-1]] == s[0]:
                        del stack[-1]
                        instring = False
                    else:
                        stack.append(s[0])
                        instring = True
                else:
                    stack.append(s[0])
            else:
                if s[0] in '"\'' and stack and brackets[stack[-1]] == s[0]:
                    del stack[-1]
                    instring = False
            s = s[1:]
        return len(stack) == 0
        

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The documentation for this class was generated from the following file:

• shell.py