mirror of
https://github.com/Mikaela/Limnoria.git
synced 2024-12-27 21:22:39 +01:00
105 lines
3.7 KiB
Python
105 lines
3.7 KiB
Python
###
|
|
# Copyright (c) 2004-2005, Jeremiah Fincher
|
|
# All rights reserved.
|
|
#
|
|
# Redistribution and use in source and binary forms, with or without
|
|
# modification, are permitted provided that the following conditions are met:
|
|
#
|
|
# * Redistributions of source code must retain the above copyright notice,
|
|
# this list of conditions, and the following disclaimer.
|
|
# * Redistributions in binary form must reproduce the above copyright notice,
|
|
# this list of conditions, and the following disclaimer in the
|
|
# documentation and/or other materials provided with the distribution.
|
|
# * Neither the name of the author of this software nor the name of
|
|
# contributors to this software may be used to endorse or promote products
|
|
# derived from this software without specific prior written consent.
|
|
#
|
|
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
# POSSIBILITY OF SUCH DAMAGE.
|
|
###
|
|
|
|
class Reader(object):
|
|
"""Opens a file and reads it in blocks, using the `Creator` class to
|
|
instantiate an object for each of the blocks.
|
|
|
|
The format is of the form:
|
|
|
|
```
|
|
entry_type entry_id1
|
|
command1 arg1 arg1b
|
|
command2 arg2
|
|
|
|
entry_type entry_id2
|
|
command3 arg3 arg13
|
|
```
|
|
|
|
When reading this file, the `Creator` will be instantiated with the
|
|
provided args and kwargs to a `creator` object, whose methods will then
|
|
be called in this pattern:
|
|
|
|
```
|
|
creator.entry_type("entry_id1", 1)
|
|
creator.command1("arg1 arg1b", 2)
|
|
creator.command2("arg2", 3)
|
|
creator.finish()
|
|
|
|
creator.entry_type'entry_id2", 5)
|
|
creator.command3("arg3 arg3b", 6)
|
|
creator.finish()
|
|
```
|
|
"""
|
|
def __init__(self, Creator, *args, **kwargs):
|
|
self.Creator = Creator
|
|
self.args = args
|
|
self.kwargs = kwargs
|
|
self.creator = None
|
|
self.modifiedCreator = False
|
|
self.indent = None
|
|
|
|
def normalizeCommand(self, s):
|
|
return s.lower()
|
|
|
|
def readFile(self, filename):
|
|
self.read(open(filename))
|
|
|
|
def read(self, fd):
|
|
lineno = 0
|
|
for line in fd:
|
|
lineno += 1
|
|
if not line.strip():
|
|
continue
|
|
line = line.rstrip('\r\n')
|
|
line = line.expandtabs()
|
|
s = line.lstrip(' ')
|
|
indent = len(line) - len(s)
|
|
if indent != self.indent:
|
|
# New indentation level.
|
|
if self.creator is not None:
|
|
self.creator.finish()
|
|
self.creator = self.Creator(*self.args, **self.kwargs)
|
|
self.modifiedCreator = False
|
|
self.indent = indent
|
|
(command, rest) = s.split(None, 1)
|
|
command = self.normalizeCommand(command)
|
|
self.modifiedCreator = True
|
|
if hasattr(self.creator, command):
|
|
command = getattr(self.creator, command)
|
|
command(rest, lineno)
|
|
else:
|
|
self.creator.badCommand(command, rest, lineno)
|
|
if self.modifiedCreator:
|
|
self.creator.finish()
|
|
|
|
|
|
# vim:set shiftwidth=4 softtabstop=4 expandtab textwidth=79:
|
|
|