Personal Computer World 2009 February/PCWFEB09.iso/Software/Resources/Chat & Communication/Digsby build 37/digsby_setup.exe/lib/shlex.pyo

Python Compiled Bytecode | 2008-10-13 | 7KB | 224 lines

# Source Generated with Decompyle++
# File: in.pyo (Python 2.5)

import os.path as os
import sys
from collections import deque

try:
    from cStringIO import StringIO
except ImportError:
    from StringIO import StringIO

__all__ = [
    'shlex',
    'split']

class shlex:

    def __init__(self, instream = None, infile = None, posix = False):
        if isinstance(instream, basestring):
            instream = StringIO(instream)

        if instream is not None:
            self.instream = instream
            self.infile = infile
        else:
            self.instream = sys.stdin
            self.infile = None
        self.posix = posix
        if posix:
            self.eof = None
        else:
            self.eof = ''
        self.commenters = '#'
        self.wordchars = 'abcdfeghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_'
        if self.posix:
            self.wordchars += '\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd8\xd9\xda\xdb\xdc\xdd\xde'

        self.whitespace = ' \t\r\n'
        self.whitespace_split = False
        self.quotes = '\'"'
        self.escape = '\\'
        self.escapedquotes = '"'
        self.state = ' '
        self.pushback = deque()
        self.lineno = 1
        self.debug = 0
        self.token = ''
        self.filestack = deque()
        self.source = None
        if self.debug:
            print 'shlex: reading from %s, line %d' % (self.instream, self.lineno)



    def push_token(self, tok):
        if self.debug >= 1:
            print 'shlex: pushing token ' + repr(tok)

        self.pushback.appendleft(tok)


    def push_source(self, newstream, newfile = None):
        if isinstance(newstream, basestring):
            newstream = StringIO(newstream)

        self.filestack.appendleft((self.infile, self.instream, self.lineno))
        self.infile = newfile
        self.instream = newstream
        self.lineno = 1
        if self.debug:
            if newfile is not None:
                print 'shlex: pushing to file %s' % (self.infile,)
            else:
                print 'shlex: pushing to stream %s' % (self.instream,)



    def pop_source(self):
        self.instream.close()
        (self.infile, self.instream, self.lineno) = self.filestack.popleft()
        if self.debug:
            print 'shlex: popping to %s, line %d' % (self.instream, self.lineno)

        self.state = ' '


    def get_token(self):
        if self.pushback:
            tok = self.pushback.popleft()
            if self.debug >= 1:
                print 'shlex: popping token ' + repr(tok)

            return tok

        raw = self.read_token()
        if self.source is not None:
            while raw == self.source:
                spec = self.sourcehook(self.read_token())
                if spec:
                    (newfile, newstream) = spec
                    self.push_source(newstream, newfile)

                raw = self.get_token()

        while raw == self.eof:
            if not self.filestack:
                return self.eof
                continue
            self.pop_source()
            raw = self.get_token()
        if self.debug >= 1:
            if raw != self.eof:
                print 'shlex: token=' + repr(raw)
            else:
                print 'shlex: token=EOF'

        return raw


    def read_token(self):
        quoted = False
        escapedstate = ' '
        while True:
            nextchar = self.instream.read(1)
            if nextchar == '\n':
                self.lineno = self.lineno + 1

            if self.debug >= 3:
                print 'shlex: in state', repr(self.state), 'I see character:', repr(nextchar)

            None if self.state is None else nextchar in self.escape
            if self.state in self.quotes:
                quoted = True
                if not nextchar:
                    if self.debug >= 2:
                        print 'shlex: I see EOF in quotes state'

                    raise ValueError, 'No closing quotation'

                if nextchar == self.state:
                    if not self.posix:
                        self.token = self.token + nextchar
                        self.state = ' '
                        break
                    else:
                        self.state = 'a'
                elif self.posix and nextchar in self.escape and self.state in self.escapedquotes:
                    escapedstate = self.state
                    self.state = nextchar
                else:
                    self.token = self.token + nextchar
            self.state in self.escapedquotes
            None if self.state in self.escape else self.whitespace_split
        result = self.token
        self.token = ''
        if self.posix and not quoted and result == '':
            result = None

        if self.debug > 1:
            if result:
                print 'shlex: raw token=' + repr(result)
            else:
                print 'shlex: raw token=EOF'

        return result


    def sourcehook(self, newfile):
        if newfile[0] == '"':
            newfile = newfile[1:-1]

        if isinstance(self.infile, basestring) and not os.path.isabs(newfile):
            newfile = os.path.join(os.path.dirname(self.infile), newfile)

        return (newfile, open(newfile, 'r'))


    def error_leader(self, infile = None, lineno = None):
        if infile is None:
            infile = self.infile

        if lineno is None:
            lineno = self.lineno

        return '"%s", line %d: ' % (infile, lineno)


    def __iter__(self):
        return self


    def next(self):
        token = self.get_token()
        if token == self.eof:
            raise StopIteration

        return token



def split(s, comments = False):
    lex = shlex(s, posix = True)
    lex.whitespace_split = True
    if not comments:
        lex.commenters = ''

    return list(lex)

if __name__ == '__main__':
    if len(sys.argv) == 1:
        lexer = shlex()
    else:
        file = sys.argv[1]
        lexer = shlex(open(file), file)
    while None:
        tt = lexer.get_token()
        if tt:
            print 'Token: ' + repr(tt)
            continue
        break
        continue
__name__ == '__main__'