/usr/lib/python2.7/dist-packages/canmatrix/dbf.py is in python-canmatrix 0.6-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Copyright (c) 2013, Eduard Broecker
# 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.
#
# 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 HOLDER 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.
#
# this script imports dbf-files in a canmatrix-object
# dbf-files are the can-matrix-definitions of the busmaster-project (http://rbei-etas.github.io/busmaster/)
#
from __future__ import division
from __future__ import absolute_import
from __future__ import print_function
from builtins import *
import math
import logging
logger = logging.getLogger('root')
from .canmatrix import *
import re
import codecs
# TODO support for [START_PARAM_NODE_RX_SIG]
# TODO support for [START_PARAM_NODE_TX_MSG]
def decodeDefine(line):
(define, valueType, value) = line.split(',', 2)
valueType = valueType.strip()
if valueType == "INT" or valueType == "HEX":
(Min, Max, default) = value.split(',', 2)
myDef = valueType + ' ' + Min.strip() + ' ' + Max.strip()
default = default.strip()
elif valueType == "ENUM":
(enums, default) = value.rsplit(',', 1)
myDef = valueType + " " + enums[1:]
elif valueType == "STRING":
myDef = valueType
default = value
else:
logger.debug(line)
return define[1:-1], myDef, default
def load(f, **options):
if 'dbfImportEncoding' in options:
dbfImportEncoding = options["dbfImportEncoding"]
else:
dbfImportEncoding = 'iso-8859-1'
db = CanMatrix()
mode = ''
for line in f:
line = line.decode(dbfImportEncoding).strip()
if mode == 'SignalDescription':
if line.startswith(
"[END_DESC_SIG]") or line.startswith("[END_DESC]"):
mode = ''
else:
(boId, temS, SignalName, comment) = line.split(' ', 3)
comment = comment.replace('"', '').replace(';', '')
db.frameById(int(boId)).signalByName(
SignalName).addComment(comment)
if mode == 'BUDescription':
if line.startswith(
"[END_DESC_NODE]") or line.startswith("[END_DESC]"):
mode = ''
else:
(BUName, comment) = line.split(' ', 1)
comment = comment.replace('"', '').replace(';', '')
db._BUs.byName(BUName).addComment(comment)
if mode == 'FrameDescription':
if line.startswith(
"[END_DESC_MSG]") or line.startswith("[END_DESC]"):
mode = ''
else:
(boId, temS, comment) = line.split(' ', 2)
comment = comment.replace('"', '').replace(';', '')
frame = db.frameById(int(boId))
if frame:
frame.addComment(comment)
elif mode == 'ParamMsgVal':
if line.startswith("[END_PARAM_MSG_VAL]"):
mode = ''
else:
(boId, temS, attrib, value) = line.split(',', 3)
db.frameById(
int(boId)).addAttribute(
attrib.replace(
'"',
''),
value.replace(
'"',
''))
elif mode == 'ParamNodeVal':
if line.startswith("[END_PARAM_NODE_VAL]"):
mode = ''
else:
(bu, attrib, value) = line.split(',', 2)
db._BUs.byName(bu).addAttribute(
attrib.replace('"', ''), value[1:-1])
elif mode == 'ParamNetVal':
if line.startswith("[END_PARAM_NET_VAL]"):
mode = ''
else:
(attrib, value) = line.split(',', 1)
db.addAttribute(attrib.replace('"', ''), value[1:-1])
elif mode == 'ParamSigVal':
if line.startswith("[END_PARAM_SIG_VAL]"):
mode = ''
else:
(boId, temS, SignalName, attrib, value) = line.split(',', 4)
db.frameById(
int(boId)).signalByName(SignalName).addAttribute(
attrib.replace(
'"', ''), value[
1:-1])
elif mode == 'ParamSig':
if line.startswith("[END_PARAM_SIG]"):
mode = ''
else:
(name, define, default) = decodeDefine(line)
db.addSignalDefines(name, define)
db.addDefineDefault(name, default)
elif mode == 'ParamMsg':
if line.startswith("[END_PARAM_MSG]"):
mode = ''
else:
(name, define, default) = decodeDefine(line)
db.addFrameDefines(name, define)
db.addDefineDefault(name, default)
elif mode == 'ParamNode':
if line.startswith("[END_PARAM_NODE]"):
mode = ''
else:
(name, define, default) = decodeDefine(line)
db.addBUDefines(name, define)
db.addDefineDefault(name, default)
elif mode == 'ParamNet':
if line.startswith("[END_PARAM_NET]"):
mode = ''
else:
(name, define, default) = decodeDefine(line)
db.addGlobalDefines(name, define)
db.addDefineDefault(name, default)
else:
if line.startswith("[START_DESC_SIG]"):
mode = 'SignalDescription'
if line.startswith("[START_DESC_MSG]"):
mode = 'FrameDescription'
if line.startswith("[START_DESC_NODE]"):
mode = 'BUDescription'
if line.startswith("[START_PARAM_NODE_VAL]"):
mode = 'ParamNodeVal'
if line.startswith("[START_PARAM_NET_VAL]"):
mode = 'ParamNetVal'
if line.startswith("[START_PARAM_MSG_VAL]"):
mode = 'ParamMsgVal'
if line.startswith("[START_PARAM_SIG_VAL]"):
mode = 'ParamSigVal'
if line.startswith("[START_PARAM_SIG]"):
mode = 'ParamSig'
if line.startswith("[START_PARAM_MSG]"):
mode = 'ParamMsg'
if line.startswith("[START_PARAM_NODE]"):
mode = 'ParamNode'
if line.startswith("[START_PARAM_NET]"):
mode = 'ParamNet'
if line.startswith("[START_MSG]"):
temstr = line.strip()[11:].strip()
temparray = temstr.split(',')
(name, Id, size, nSignals, dummy) = temparray[0:5]
if len(temparray) > 5:
extended = temparray[5]
else:
extended = None
if len(temparray) > 6:
transmitter = temparray[6].split()
else:
transmitter = None
newBo = db._fl.addFrame(
Frame(name,
Id=int(Id),
dlc=size,
transmitter=transmitter))
# Frame(int(Id), name, size, transmitter))
if extended == 'X':
logger.debug("Extended")
newBo.extended = 1
if line.startswith("[NODE]"):
temstr = line.strip()[6:].strip()
boList = temstr.split(',')
for bo in boList:
db._BUs.add(BoardUnit(bo))
if line.startswith("[START_SIGNALS]"):
temstr = line.strip()[15:].strip()
temparray = temstr.split(',')
(name, size, startbyte, startbit, sign, Max, Min, byteorder,
offset, factor, unit, multiplex) = temparray[0:12]
if len(temparray) > 12:
receiver = temparray[12].split(',')
else:
receiver = []
if multiplex == 'M':
multiplex = 'Multiplexor'
elif multiplex.strip().__len__() > 0:
multiplex = int(multiplex[1:])
else:
multiplex = None
is_float = False
is_signed = False
if sign == "U":
is_signed = False
elif sign == "F" or sign == "D":
is_float = True
else:
is_signed = True
startbit = int(startbit)
startbit += (int(startbyte) - 1) * 8
newSig = newBo.addSignal(Signal(name,
startBit=startbit,
signalSize=size,
is_little_endian=(
int(byteorder) == 1),
is_signed=is_signed,
factor=factor,
offset=offset,
min=float(Min) * float(factor),
max=float(Max) * float(factor),
unit=unit,
receiver=receiver,
is_float=is_float,
multiplex=multiplex))
if int(byteorder) == 0:
# this is dummy here, because internal lsb is default - for
# now
newSig.setStartbit(
startbit, bitNumbering=1, startLittle=True)
if line.startswith("[VALUE_DESCRIPTION]"):
temstr = line.strip()[19:].strip()
regexp = re.compile("\"(.+)\" *, *(.+)")
temp = regexp.match(temstr)
if temp:
name = temp.group(1)
value = temp.group(2)
newSig.addValues(value, name)
for frame in db.frames:
# receiver is only given in the signals, so do propagate the
# receiver to the frame:
frame.updateReceiver()
return db
def dump(db, f, **options):
if 'dbfExportEncoding' in options:
dbfExportEncoding = options["dbfExportEncoding"]
else:
dbfExportEncoding = 'iso-8859-1'
outstr = """//******************************BUSMASTER Messages and signals Database ******************************//
[DATABASE_VERSION] 1.3
[PROTOCOL] CAN
[BUSMASTER_VERSION] [1.7.2]
[NUMBER_OF_MESSAGES] """
outstr += str(len(db.frames)) + "\n"
# Frames
for frame in db.frames:
# Name unMsgId m_ucLength m_ucNumOfSignals m_cDataFormat m_cFrameFormat? m_txNode
# m_cDataFormat If 1 dataformat Intel, 0- Motorola -- immer 1 original Converter macht das nach anzahl entsprechender Signale
# cFrameFormat Standard 'S' Extended 'X'
extended = 'S'
if frame.extended == 1:
extended = 'X'
outstr += "[START_MSG] " + frame.name + \
",%d,%d,%d,1,%c," % (frame.id, frame.size,
len(frame.signals), extended)
if frame.transmitter.__len__() == 0:
frame.addTransmitter("Vector__XXX")
# DBF does not support multiple Transmitters
outstr += frame.transmitter[0] + "\n"
for signal in frame.signals:
# m_acName ucLength m_ucWhichByte m_ucStartBit
# m_ucDataFormat m_fOffset m_fScaleFactor m_acUnit m_acMultiplex m_rxNode
# m_ucDataFormat
whichbyte = int(
math.floor(
signal.getStartbit(
bitNumbering=1,
startLittle=True) /
8) +
1)
sign = 'S'
if not signal.is_signed:
sign = 'U'
if signal.is_float:
if signal.signalsize > 32:
sign = 'D'
else:
sign = 'F'
outstr += "[START_SIGNALS] " + signal.name + ",%d,%d,%d,%c," % (signal.signalsize,
whichbyte,
int(signal.getStartbit(bitNumbering=1,
startLittle=True)) % 8,
sign) + '{},{}'.format(float(signal.max) / float(signal.factor),
float(signal.min) / float(signal.factor))
outstr += ",%d,%s,%s" % (signal.is_little_endian,
signal.offset, signal.factor)
multiplex = ""
if signal.multiplex is not None:
if signal.multiplex == 'Multiplexor':
multiplex = 'M'
else:
multiplex = 'm' + str(signal.multiplex)
outstr += "," + signal.unit + ",%s," % multiplex + \
','.join(signal.receiver) + "\n"
if len(signal.values) > 0:
for attrib, val in sorted(list(signal.values.items())):
outstr += '[VALUE_DESCRIPTION] "' + \
val + '",' + str(attrib) + '\n'
outstr += "[END_MSG]\n\n"
# Boardunits
outstr += "[NODE] "
count = 1
for bu in db.boardUnits:
outstr += bu.name
if count < len(db.boardUnits):
outstr += ","
count += 1
outstr += "\n"
outstr += "[START_DESC]\n\n"
# BU-descriptions
outstr += "[START_DESC_MSG]\n"
for frame in db.frames:
if frame.comment is not None:
comment = frame.comment.replace("\n", " ")
outstr += str(frame.id) + ' S "' + comment + '";\n'
outstr += "[END_DESC_MSG]\n"
# Frame descriptions
outstr += "[START_DESC_NODE]\n"
for bu in db.boardUnits:
if bu.comment is not None:
comment = bu.comment.replace("\n", " ")
outstr += bu.name + ' "' + comment + '";\n'
outstr += "[END_DESC_NODE]\n"
# signal descriptions
outstr += "[START_DESC_SIG]\n"
for frame in db.frames:
for signal in frame.signals:
if signal.comment is not None:
comment = signal.comment.replace("\n", " ")
outstr += "%d S " % frame.id + signal.name + ' "' + comment + '";\n'
outstr += "[END_DESC_SIG]\n"
outstr += "[END_DESC]\n\n"
outstr += "[START_PARAM]\n"
# db-parameter
outstr += "[START_PARAM_NET]\n"
for (type, define) in list(db.globalDefines.items()):
if define.defaultValue is not None:
outstr += '"' + type + '",' + \
define.definition.replace(
' ', ',') + ',' + define.defaultValue + '\n'
outstr += "[END_PARAM_NET]\n"
# bu-parameter
outstr += "[START_PARAM_NODE]\n"
for (type, define) in list(db.buDefines.items()):
if define.defaultValue is not None:
outstr += '"' + type + '",' + \
define.definition.replace(
' ', ',') + ',' + define.defaultValue + '\n'
outstr += "[END_PARAM_NODE]\n"
# frame-parameter
outstr += "[START_PARAM_MSG]\n"
for (type, define) in list(db.frameDefines.items()):
if define.defaultValue is not None:
outstr += '"' + type + '",' + \
define.definition.replace(
' ', ',') + ',' + define.defaultValue + '\n'
outstr += "[END_PARAM_MSG]\n"
# signal-parameter
outstr += "[START_PARAM_SIG]\n"
for (type, define) in list(db.signalDefines.items()):
if define.defaultValue is not None:
outstr += '"' + type + '",' + \
define.definition.replace(
' ', ',') + ',' + define.defaultValue + '\n'
outstr += "[END_PARAM_SIG]\n"
outstr += "[START_PARAM_VAL]\n"
# boardunit-attributes:
outstr += "[START_PARAM_NODE_VAL]\n"
for bu in db.boardUnits:
for attrib, val in sorted(list(bu.attributes.items())):
outstr += bu.name + ',"' + attrib + '","' + val + '"\n'
outstr += "[END_PARAM_NODE_VAL]\n"
# messages-attributes:
outstr += "[START_PARAM_MSG_VAL]\n"
for frame in db.frames:
for attrib, val in sorted(list(frame.attributes.items())):
outstr += str(frame.id) + ',S,"' + attrib + '","' + val + '"\n'
outstr += "[END_PARAM_MSG_VAL]\n"
# signal-attributes:
outstr += "[START_PARAM_SIG_VAL]\n"
for frame in db.frames:
for signal in frame.signals:
for attrib, val in sorted(list(signal.attributes.items())):
outstr += str(frame.id) + ',S,' + signal.name + \
',"' + attrib + '","' + val + '"\n'
outstr += "[END_PARAM_SIG_VAL]\n"
outstr += "[END_PARAM_VAL]\n"
f.write(outstr.encode(dbfExportEncoding))
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