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string.pyc
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2007-02-06
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# Source Generated with Decompyle++
# File: in.pyc (Python 2.4)
"""A collection of string operations (most are no longer used).
Warning: most of the code you see here isn't normally used nowadays.
Beginning with Python 1.6, many of these functions are implemented as
methods on the standard string object. They used to be implemented by
a built-in module called strop, but strop is now obsolete itself.
Public module variables:
whitespace -- a string containing all characters considered whitespace
lowercase -- a string containing all characters considered lowercase letters
uppercase -- a string containing all characters considered uppercase letters
letters -- a string containing all characters considered letters
digits -- a string containing all characters considered decimal digits
hexdigits -- a string containing all characters considered hexadecimal digits
octdigits -- a string containing all characters considered octal digits
punctuation -- a string containing all characters considered punctuation
printable -- a string containing all characters considered printable
"""
whitespace = ' \t\n\r\x0b\x0c'
lowercase = 'abcdefghijklmnopqrstuvwxyz'
uppercase = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
letters = lowercase + uppercase
ascii_lowercase = lowercase
ascii_uppercase = uppercase
ascii_letters = ascii_lowercase + ascii_uppercase
digits = '0123456789'
hexdigits = digits + 'abcdef' + 'ABCDEF'
octdigits = '01234567'
punctuation = '!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~'
printable = digits + letters + punctuation + whitespace
l = map(chr, xrange(256))
_idmap = str('').join(l)
del l
def capwords(s, sep = None):
'''capwords(s, [sep]) -> string
Split the argument into words using split, capitalize each
word using capitalize, and join the capitalized words using
join. Note that this replaces runs of whitespace characters by
a single space.
'''
if not sep:
pass
return []([ x.capitalize() for x in s.split(sep) ])
_idmapL = None
def maketrans(fromstr, tostr):
'''maketrans(frm, to) -> string
Return a translation table (a string of 256 bytes long)
suitable for use in string.translate. The strings frm and to
must be of the same length.
'''
global _idmapL
if len(fromstr) != len(tostr):
raise ValueError, 'maketrans arguments must have same length'
if not _idmapL:
_idmapL = map(None, _idmap)
L = _idmapL[:]
fromstr = map(ord, fromstr)
for i in range(len(fromstr)):
L[fromstr[i]] = tostr[i]
return ''.join(L)
import re as _re
class _multimap:
'''Helper class for combining multiple mappings.
Used by .{safe_,}substitute() to combine the mapping and keyword
arguments.
'''
def __init__(self, primary, secondary):
self._primary = primary
self._secondary = secondary
def __getitem__(self, key):
try:
return self._primary[key]
except KeyError:
return self._secondary[key]
class _TemplateMetaclass(type):
pattern = '\n %(delim)s(?:\n (?P<escaped>%(delim)s) | # Escape sequence of two delimiters\n (?P<named>%(id)s) | # delimiter and a Python identifier\n {(?P<braced>%(id)s)} | # delimiter and a braced identifier\n (?P<invalid>) # Other ill-formed delimiter exprs\n )\n '
def __init__(cls, name, bases, dct):
super(_TemplateMetaclass, cls).__init__(name, bases, dct)
if 'pattern' in dct:
pattern = cls.pattern
else:
pattern = _TemplateMetaclass.pattern % {
'delim': _re.escape(cls.delimiter),
'id': cls.idpattern }
cls.pattern = _re.compile(pattern, _re.IGNORECASE | _re.VERBOSE)
class Template:
'''A string class for supporting $-substitutions.'''
__metaclass__ = _TemplateMetaclass
delimiter = '$'
idpattern = '[_a-z][_a-z0-9]*'
def __init__(self, template):
self.template = template
def _invalid(self, mo):
i = mo.start('invalid')
lines = self.template[:i].splitlines(True)
if not lines:
colno = 1
lineno = 1
else:
colno = i - len(''.join(lines[:-1]))
lineno = len(lines)
raise ValueError('Invalid placeholder in string: line %d, col %d' % (lineno, colno))
def substitute(self, *args, **kws):
if len(args) > 1:
raise TypeError('Too many positional arguments')
if not args:
mapping = kws
elif kws:
mapping = _multimap(kws, args[0])
else:
mapping = args[0]
def convert(mo):
if not mo.group('named'):
pass
named = mo.group('braced')
if named is not None:
val = mapping[named]
return '%s' % val
if mo.group('escaped') is not None:
return self.delimiter
if mo.group('invalid') is not None:
self._invalid(mo)
raise ValueError('Unrecognized named group in pattern', self.pattern)
return self.pattern.sub(convert, self.template)
def safe_substitute(self, *args, **kws):
if len(args) > 1:
raise TypeError('Too many positional arguments')
if not args:
mapping = kws
elif kws:
mapping = _multimap(kws, args[0])
else:
mapping = args[0]
def convert(mo):
named = mo.group('named')
if named is not None:
try:
return '%s' % mapping[named]
except KeyError:
return self.delimiter + named
except:
None<EXCEPTION MATCH>KeyError
None<EXCEPTION MATCH>KeyError
braced = mo.group('braced')
if braced is not None:
try:
return '%s' % mapping[braced]
except KeyError:
return self.delimiter + '{' + braced + '}'
except:
None<EXCEPTION MATCH>KeyError
None<EXCEPTION MATCH>KeyError
if mo.group('escaped') is not None:
return self.delimiter
if mo.group('invalid') is not None:
return self.delimiter
raise ValueError('Unrecognized named group in pattern', self.pattern)
return self.pattern.sub(convert, self.template)
index_error = ValueError
atoi_error = ValueError
atof_error = ValueError
atol_error = ValueError
def lower(s):
'''lower(s) -> string
Return a copy of the string s converted to lowercase.
'''
return s.lower()
def upper(s):
'''upper(s) -> string
Return a copy of the string s converted to uppercase.
'''
return s.upper()
def swapcase(s):
'''swapcase(s) -> string
Return a copy of the string s with upper case characters
converted to lowercase and vice versa.
'''
return s.swapcase()
def strip(s, chars = None):
'''strip(s [,chars]) -> string
Return a copy of the string s with leading and trailing
whitespace removed.
If chars is given and not None, remove characters in chars instead.
If chars is unicode, S will be converted to unicode before stripping.
'''
return s.strip(chars)
def lstrip(s, chars = None):
'''lstrip(s [,chars]) -> string
Return a copy of the string s with leading whitespace removed.
If chars is given and not None, remove characters in chars instead.
'''
return s.lstrip(chars)
def rstrip(s, chars = None):
'''rstrip(s [,chars]) -> string
Return a copy of the string s with trailing whitespace removed.
If chars is given and not None, remove characters in chars instead.
'''
return s.rstrip(chars)
def split(s, sep = None, maxsplit = -1):
'''split(s [,sep [,maxsplit]]) -> list of strings
Return a list of the words in the string s, using sep as the
delimiter string. If maxsplit is given, splits at no more than
maxsplit places (resulting in at most maxsplit+1 words). If sep
is not specified or is None, any whitespace string is a separator.
(split and splitfields are synonymous)
'''
return s.split(sep, maxsplit)
splitfields = split
def rsplit(s, sep = None, maxsplit = -1):
'''rsplit(s [,sep [,maxsplit]]) -> list of strings
Return a list of the words in the string s, using sep as the
delimiter string, starting at the end of the string and working
to the front. If maxsplit is given, at most maxsplit splits are
done. If sep is not specified or is None, any whitespace string
is a separator.
'''
return s.rsplit(sep, maxsplit)
def join(words, sep = ' '):
'''join(list [,sep]) -> string
Return a string composed of the words in list, with
intervening occurrences of sep. The default separator is a
single space.
(joinfields and join are synonymous)
'''
return sep.join(words)
joinfields = join
def index(s, *args):
'''index(s, sub [,start [,end]]) -> int
Like find but raises ValueError when the substring is not found.
'''
return s.index(*args)
def rindex(s, *args):
'''rindex(s, sub [,start [,end]]) -> int
Like rfind but raises ValueError when the substring is not found.
'''
return s.rindex(*args)
def count(s, *args):
'''count(s, sub[, start[,end]]) -> int
Return the number of occurrences of substring sub in string
s[start:end]. Optional arguments start and end are
interpreted as in slice notation.
'''
return s.count(*args)
def find(s, *args):
'''find(s, sub [,start [,end]]) -> in
Return the lowest index in s where substring sub is found,
such that sub is contained within s[start,end]. Optional
arguments start and end are interpreted as in slice notation.
Return -1 on failure.
'''
return s.find(*args)
def rfind(s, *args):
'''rfind(s, sub [,start [,end]]) -> int
Return the highest index in s where substring sub is found,
such that sub is contained within s[start,end]. Optional
arguments start and end are interpreted as in slice notation.
Return -1 on failure.
'''
return s.rfind(*args)
_float = float
_int = int
_long = long
def atof(s):
'''atof(s) -> float
Return the floating point number represented by the string s.
'''
return _float(s)
def atoi(s, base = 10):
'''atoi(s [,base]) -> int
Return the integer represented by the string s in the given
base, which defaults to 10. The string s must consist of one
or more digits, possibly preceded by a sign. If base is 0, it
is chosen from the leading characters of s, 0 for octal, 0x or
0X for hexadecimal. If base is 16, a preceding 0x or 0X is
accepted.
'''
return _int(s, base)
def atol(s, base = 10):
'''atol(s [,base]) -> long
Return the long integer represented by the string s in the
given base, which defaults to 10. The string s must consist
of one or more digits, possibly preceded by a sign. If base
is 0, it is chosen from the leading characters of s, 0 for
octal, 0x or 0X for hexadecimal. If base is 16, a preceding
0x or 0X is accepted. A trailing L or l is not accepted,
unless base is 0.
'''
return _long(s, base)
def ljust(s, width, *args):
'''ljust(s, width[, fillchar]) -> string
Return a left-justified version of s, in a field of the
specified width, padded with spaces as needed. The string is
never truncated. If specified the fillchar is used instead of spaces.
'''
return s.ljust(width, *args)
def rjust(s, width, *args):
'''rjust(s, width[, fillchar]) -> string
Return a right-justified version of s, in a field of the
specified width, padded with spaces as needed. The string is
never truncated. If specified the fillchar is used instead of spaces.
'''
return s.rjust(width, *args)
def center(s, width, *args):
'''center(s, width[, fillchar]) -> string
Return a center version of s, in a field of the specified
width. padded with spaces as needed. The string is never
truncated. If specified the fillchar is used instead of spaces.
'''
return s.center(width, *args)
def zfill(x, width):
'''zfill(x, width) -> string
Pad a numeric string x with zeros on the left, to fill a field
of the specified width. The string x is never truncated.
'''
if not isinstance(x, basestring):
x = repr(x)
return x.zfill(width)
def expandtabs(s, tabsize = 8):
'''expandtabs(s [,tabsize]) -> string
Return a copy of the string s with all tab characters replaced
by the appropriate number of spaces, depending on the current
column, and the tabsize (default 8).
'''
return s.expandtabs(tabsize)
def translate(s, table, deletions = ''):
'''translate(s,table [,deletions]) -> string
Return a copy of the string s, where all characters occurring
in the optional argument deletions are removed, and the
remaining characters have been mapped through the given
translation table, which must be a string of length 256. The
deletions argument is not allowed for Unicode strings.
'''
if deletions:
return s.translate(table, deletions)
else:
return s.translate(table + s[:0])
def capitalize(s):
'''capitalize(s) -> string
Return a copy of the string s with only its first character
capitalized.
'''
return s.capitalize()
def replace(s, old, new, maxsplit = -1):
'''replace (str, old, new[, maxsplit]) -> string
Return a copy of string str with all occurrences of substring
old replaced by new. If the optional argument maxsplit is
given, only the first maxsplit occurrences are replaced.
'''
return s.replace(old, new, maxsplit)
try:
from strop import maketrans, lowercase, uppercase, whitespace
letters = lowercase + uppercase
except ImportError:
pass