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-rw-r--r--geneticone/config_parser.py274
1 files changed, 0 insertions, 274 deletions
diff --git a/geneticone/config_parser.py b/geneticone/config_parser.py
deleted file mode 100644
index 8418a6a..0000000
--- a/geneticone/config_parser.py
+++ /dev/null
@@ -1,274 +0,0 @@
-# -*- coding: utf-8 -*-
-#
-# File: portato/config_parser.py
-# This file is part of the Portato-Project, a graphical portage-frontend.
-#
-# Copyright (C) 2006 René 'Necoro' Neumann
-# This is free software. You may redistribute copies of it under the terms of
-# the GNU General Public License version 2.
-# There is NO WARRANTY, to the extent permitted by law.
-#
-# Written by René 'Necoro' Neumann <necoro@necoro.net>
-
-from helper import debug
-
-import re
-import types
-
-DELIMITER = ["=", ":"]
-COMMENT = [";","#"]
-
-# precompiled expressions
-TRUE = re.compile("((true)|(1)|(on)|(wahr)|(ja)|(yes))", re.I)
-FALSE = re.compile("((false)|(0)|(off)|(falsch)|(nein)|(no))", re.I)
-SECTION = re.compile("\s*\[(\w+)\]\s*")
-EXPRESSION = re.compile(r"\s*(\w+)\s*[:=]\s*(.*)\s*")
-
-class Value (object):
- """Class defining a value of a key."""
-
- def __init__ (self, value, line, bool = None):
- """Constructor.
-
- @param value: the value
- @type value: string
- @param line: the line in the config file
- @type line: int
- @param bool: boolean meaning of the value
- @type bool: boolean"""
-
- self.__value = value
- self.line = line
- self.boolean = bool
-
- self.changed = False # true if we changed it
- self.old = value # keep the original one ... so if we change it back to this one, we do not have to write
-
- def set (self, value):
- """Sets the value to a new one.
-
- @param value: new value
- @type value: string"""
-
- self.__value = value
-
- if value != self.old:
- self.changed = True
- else:
- self.changed = False
-
- def get (self):
- """Returns the actual value.
-
- @returns: the actual value
- @rtype: string"""
-
- return self.__value
-
- def is_bool (self):
- """Returns whether the actual value has a boolean meaning.
-
- @returns: True if the actual value can be interpreted as a boolean
- @rtype: boolean"""
-
- return (self.boolean != None)
-
- def __str__ (self):
- return str(self.__value)
-
- def __repr__ (self):
- return self.__str__()
-
- value = property(get,set)
-
-class ConfigParser:
- """The newly implemented Config-Parser."""
-
- # generates the complementary true-false-pairs
- true_false = {
- "true" : "false",
- "1" : "0",
- "on" : "off",
- "yes" : "no",
- "ja" : "nein",
- "wahr" : "falsch"}
- true_false.update(zip(true_false.values(), true_false.keys()))
-
- def __init__ (self, file):
- """Constructor.
-
- @param file: the configuration file to open
- @type file: string"""
-
- self.file = file
- self.__initialize()
-
- def __initialize (self):
- """Private method which initializes our dictionaries."""
-
- self.vars = {"MAIN": {}}
- self.cache = None # file cache
- self.pos = {} # stores the positions of the matches
-
- def _invert (self, val):
- """Invertes a given boolean.
-
- @param val: value to invert
- @type val: string
- @returns: inverted value
- @rtype: string"""
-
- return self.true_false[val.lower()]
-
- def parse (self):
- """Parses the file."""
-
- # read into cache
- file = open(self.file, "r")
- self.cache = file.readlines()
- file.close()
-
- # implicit first section is main
- section = "MAIN"
- count = -1
- for line in self.cache:
- count += 1
-
- ls = line.strip()
- if not ls: continue # empty
- if ls[0] in COMMENT: continue # comment
-
- # look for a section
- match = SECTION.search(line)
- if match:
- sec = match.group(1).upper()
- if sec != section:
- self.vars[sec] = {}
- section = sec
- continue
-
- # look for an expression
- match = EXPRESSION.search(line)
- if match:
- val = match.group(2)
-
- # find the boolean value
- bool = None
- if TRUE.match(val):
- bool = True
- elif FALSE.match(val):
- bool = False
-
- # insert
- key = match.group(1).lower()
- self.vars[section][key] = Value(val, count, bool = bool)
- self.pos[count] = match.span(2)
- else: # neither comment nor empty nor expression nor section => error
- debug("Unrecognized line:",line)
-
- def get (self, key, section = "MAIN"):
- """Returns the value of a given key in a section.
-
- @param key: the key
- @type key: string
- @param section: the section
- @type section: string
-
- @returns: value
- @rtype: string
-
- @raises KeyError: if section or key could not be found"""
-
- section = section.upper()
- key = key.lower()
- return self.vars[section][key].value
-
- def get_boolean (self, key, section = "MAIN"):
- """Returns the boolean value of a given key in a section.
-
- @param key: the key
- @type key: string
- @param section: the section
- @type section: string
-
- @returns: value
- @rtype: boolean
-
- @raises KeyError: if section or key could not be found
- @raises ValueError: if key does not have a boolean value"""
-
- section = section.upper()
- key = key.lower()
-
- val = self.vars[section][key]
-
- if val.is_bool():
- return val.boolean
-
- raise ValueError, "\"%s\" is not a boolean." % key
-
- def set (self, key, value = "", section = "MAIN"):
- """Sets a new value of a given key in a section.
-
- @param key: the key
- @type key: string
- @param value: the new value
- @type value: string
- @param section: the section
- @type section: string
-
- @raises KeyError: if section or key could not be found"""
-
- section = section.upper()
- key = key.lower()
-
- self.vars[section][key].value = value
-
- def set_boolean (self, key, value, section = "MAIN"):
- """Sets a new boolean value of a given key in a section.
- Therefore it invertes the string representation of the boolean (in lowercase).
-
- @param key: the key
- @type key: string
- @param value: the new value
- @type value: boolean
- @param section: the section
- @type section: string
-
- @raises KeyError: if section or key could not be found
- @raises ValueError: if the old/new value is not a boolean"""
-
- section = section.upper()
- key = key.lower()
-
- if not isinstance(value, types.BooleanType):
- raise ValueError, "Passed value must be a boolean."
-
- val = self.vars[section][key]
- if val.is_bool():
- if value is not val.boolean:
- val.boolean = value
- val.value = self._invert(val.value)
- else:
- raise ValueError, "\"%s\" is not a boolean." % key
-
- def write (self):
- """Writes file."""
-
- for sec in self.vars:
- for key in self.vars[sec]:
- val = self.vars[sec][key]
- if val.changed:
- part1 = self.cache[val.line][:self.pos[val.line][0]] # key+DELIMITER
- part2 = val.value # value
- part3 = self.cache[val.line][self.pos[val.line][1]:] # everything behind the vale (\n in normal cases)
- self.cache[val.line] = part1 + part2 + part3
-
- # write
- f = open(self.file, "w")
- f.writelines(self.cache)
- f.close()
-
- # reload
- self.__initialize()
- self.parse()
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