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Name	Size	Permission
__pycache__	[ DIR ]	drwxr-xr-x
AL.py	1.56 KB	-rw-r--r--
CD.py	872 B	-rw-r--r--
CL.py	628 B	-rw-r--r--
CL_old.py	6.02 KB	-rw-r--r--
DEVICE.py	5.1 KB	-rw-r--r--
ERRNO.py	2.22 KB	-rw-r--r--
FILE.py	3.94 KB	-rw-r--r--
FL.py	5.47 KB	-rw-r--r--
GET.py	1 KB	-rw-r--r--
GL.py	6.21 KB	-rw-r--r--
GLWS.py	298 B	-rw-r--r--
IN.py	3.02 KB	-rw-r--r--
IOCTL.py	4.54 KB	-rw-r--r--
SV.py	3.25 KB	-rw-r--r--
WAIT.py	429 B	-rw-r--r--
cddb.py	7.06 KB	-rw-r--r--
cdplayer.py	3.06 KB	-rw-r--r--
flp.doc	4.19 KB	-rw-r--r--
flp.py	13.07 KB	-rw-r--r--
jpeg.py	3.59 KB	-rw-r--r--
panel.py	7.68 KB	-rw-r--r--
panelparser.py	3.32 KB	-rw-r--r--
readcd.doc	4.2 KB	-rw-r--r--
readcd.py	8.38 KB	-rw-r--r--
torgb.py	2.8 KB	-rw-r--r--

Code Editor : panelparser.py

# Module 'parser'
#
# Parse S-expressions output by the Panel Editor
# (which is written in Scheme so it can't help writing S-expressions).
#
# See notes at end of file.
from warnings import warnpy3k
warnpy3k("the panelparser module has been removed in Python 3.0", stacklevel=2)
del warnpy3k

whitespace = ' \t\n'
operators = '()\''
separators = operators + whitespace + ';' + '"'

# Tokenize a string.
# Return a list of tokens (strings).
#
def tokenize_string(s):
    tokens = []
    while s:
        c = s[:1]
        if c in whitespace:
            s = s[1:]
        elif c == ';':
            s = ''
        elif c == '"':
            n = len(s)
            i = 1
            while i < n:
                c = s[i]
                i = i+1
                if c == '"': break
                if c == '\\': i = i+1
            tokens.append(s[:i])
            s = s[i:]
        elif c in operators:
            tokens.append(c)
            s = s[1:]
        else:
            n = len(s)
            i = 1
            while i < n:
                if s[i] in separators: break
                i = i+1
            tokens.append(s[:i])
            s = s[i:]
    return tokens

# Tokenize a whole file (given as file object, not as file name).
# Return a list of tokens (strings).
#
def tokenize_file(fp):
    tokens = []
    while 1:
        line = fp.readline()
        if not line: break
        tokens = tokens + tokenize_string(line)
    return tokens

# Exception raised by parse_exr.
#
syntax_error = 'syntax error'

# Parse an S-expression.
# Input is a list of tokens as returned by tokenize_*().
# Return a pair (expr, tokens)
# where expr is a list representing the s-expression,
# and tokens contains the remaining tokens.
# May raise syntax_error.
#
def parse_expr(tokens):
    if (not tokens) or tokens[0] != '(':
        raise syntax_error, 'expected "("'
    tokens = tokens[1:]
    expr = []
    while 1:
        if not tokens:
            raise syntax_error, 'missing ")"'
        if tokens[0] == ')':
            return expr, tokens[1:]
        elif tokens[0] == '(':
            subexpr, tokens = parse_expr(tokens)
            expr.append(subexpr)
        else:
            expr.append(tokens[0])
            tokens = tokens[1:]

# Parse a file (given as file object, not as file name).
# Return a list of parsed S-expressions found at the top level.
#
def parse_file(fp):
    tokens = tokenize_file(fp)
    exprlist = []
    while tokens:
        expr, tokens = parse_expr(tokens)
        exprlist.append(expr)
    return exprlist

# EXAMPLE:
#
# The input
#       '(hip (hop hur-ray))'
#
# passed to tokenize_string() returns the token list
#       ['(', 'hip', '(', 'hop', 'hur-ray', ')', ')']
#
# When this is passed to parse_expr() it returns the expression
#       ['hip', ['hop', 'hur-ray']]
# plus an empty token list (because there are no tokens left.
#
# When a file containing the example is passed to parse_file() it returns
# a list whose only element is the output of parse_expr() above:
#       [['hip', ['hop', 'hur-ray']]]

# TOKENIZING:
#
# Comments start with semicolon (;) and continue till the end of the line.
#
# Tokens are separated by whitespace, except the following characters
# always form a separate token (outside strings):
#       ( ) '
# Strings are enclosed in double quotes (") and backslash (\) is used
# as escape character in strings.

${this.title}

Code Editor : panelparser.py