#!/usr/bin/env python
# -*- coding: utf-8 -*-
#This file is part of PLCOpenEditor, a library implementing an IEC 61131-3 editor
#based on the plcopen standard.
#
#Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
#
#See COPYING file for copyrights details.
#
#This library is free software; you can redistribute it and/or
#modify it under the terms of the GNU General Public
#License as published by the Free Software Foundation; either
#version 2.1 of the License, or (at your option) any later version.
#
#This library is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
#General Public License for more details.
#
#You should have received a copy of the GNU General Public
#License along with this library; if not, write to the Free Software
#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import string, re
from plcopen import LoadProject
from collections import OrderedDict
from definitions import *
TypeHierarchy = dict(TypeHierarchy_list)
"""
returns true if the given data type is the same that "reference" meta-type or one of its types.
"""
def IsOfType(type, reference):
if reference is None:
return True
elif type == reference:
return True
else:
parent_type = TypeHierarchy[type]
if parent_type is not None:
return IsOfType(parent_type, reference)
return False
"""
returns list of all types that correspont to the ANY* meta type
"""
def GetSubTypes(type):
return [typename for typename, parenttype in TypeHierarchy.items() if not typename.startswith("ANY") and IsOfType(typename, type)]
DataTypeRange = dict(DataTypeRange_list)
"""
Ordered list of common Function Blocks defined in the IEC 61131-3
Each block have this attributes:
- "name" : The block name
- "type" : The block type. It can be "function", "functionBlock" or "program"
- "extensible" : Boolean that define if the block is extensible
- "inputs" : List of the block inputs
- "outputs" : List of the block outputs
- "comment" : Comment that will be displayed in the block popup
- "generate" : Method that generator will call for generating ST block code
Inputs and outputs are a tuple of characteristics that are in order:
- The name
- The data type
- The default modifier which can be "none", "negated", "rising" or "falling"
"""
StdBlckLibs = {libname : LoadProject(tc6fname)[0]
for libname, tc6fname in StdTC6Libs}
StdBlckLst = [{"name" : libname, "list":
[GetBlockInfos(pous) for pous in lib.getpous()]}
for libname, lib in StdBlckLibs.iteritems()]
#-------------------------------------------------------------------------------
# Test identifier
#-------------------------------------------------------------------------------
IDENTIFIER_MODEL = re.compile(
"(?:%(letter)s|_(?:%(letter)s|%(digit)s))(?:_?(?:%(letter)s|%(digit)s))*$" %
{"letter": "[a-zA-Z]", "digit": "[0-9]"})
# Test if identifier is valid
def TestIdentifier(identifier):
return IDENTIFIER_MODEL.match(identifier) is not None
#-------------------------------------------------------------------------------
# Standard functions list generation
#-------------------------------------------------------------------------------
"""
take a .csv file and translate it it a "csv_table"
"""
def csv_file_to_table(file):
return [ map(string.strip,line.split(';')) for line in file.xreadlines()]
"""
seek into the csv table to a section ( section_name match 1st field )
return the matching row without first field
"""
def find_section(section_name, table):
fields = [None]
while(fields[0] != section_name):
fields = table.pop(0)
return fields[1:]
"""
extract the standard functions standard parameter names and types...
return a { ParameterName: Type, ...}
"""
def get_standard_funtions_input_variables(table):
variables = find_section("Standard_functions_variables_types", table)
standard_funtions_input_variables = {}
fields = [True,True]
while(fields[1]):
fields = table.pop(0)
variable_from_csv = dict([(champ, val) for champ, val in zip(variables, fields[1:]) if champ!=''])
standard_funtions_input_variables[variable_from_csv['name']] = variable_from_csv['type']
return standard_funtions_input_variables
"""
translate .csv file input declaration into PLCOpenEditor interessting values
in : "(ANY_NUM, ANY_NUM)" and { ParameterName: Type, ...}
return [("IN1","ANY_NUM","none"),("IN2","ANY_NUM","none")]
"""
def csv_input_translate(str_decl, variables, base):
decl = str_decl.replace('(','').replace(')','').replace(' ','').split(',')
params = []
len_of_not_predifined_variable = len([True for param_type in decl if param_type not in variables])
for param_type in decl:
if param_type in variables.keys():
param_name = param_type
param_type = variables[param_type]
elif len_of_not_predifined_variable > 1:
param_name = "IN%d"%base
base += 1
else:
param_name = "IN"
params.append((param_name, param_type, "none"))
return params
"""
Returns this kind of declaration for all standard functions
[{"name" : "Numerical", 'list': [ {
'baseinputnumber': 1,
'comment': 'Addition',
'extensible': True,
'inputs': [ ('IN1', 'ANY_NUM', 'none'),
('IN2', 'ANY_NUM', 'none')],
'name': 'ADD',
'outputs': [('OUT', 'ANY_NUM', 'none')],
'type': 'function'}, ...... ] },.....]
"""
def get_standard_funtions(table):
variables = get_standard_funtions_input_variables(table)
fonctions = find_section("Standard_functions_type",table)
Standard_Functions_Decl = []
Current_section = None
translate = {
"extensible" : lambda x: {"yes":True, "no":False}[x],
"inputs" : lambda x:csv_input_translate(x,variables,baseinputnumber),
"outputs":lambda x:[("OUT",x,"none")]}
for fields in table:
if fields[1]:
# If function section name given
if fields[0]:
words = fields[0].split('"')
if len(words) > 1:
section_name = words[1]
else:
section_name = fields[0]
Current_section = {"name" : section_name, "list" : []}
Standard_Functions_Decl.append(Current_section)
Function_decl_list = []
if Current_section:
Function_decl = dict([(champ, val) for champ, val in zip(fonctions, fields[1:]) if champ])
baseinputnumber = int(Function_decl.get("baseinputnumber",1))
Function_decl["baseinputnumber"] = baseinputnumber
for param, value in Function_decl.iteritems():
if param in translate:
Function_decl[param] = translate[param](value)
Function_decl["type"] = "function"
if Function_decl["name"].startswith('*') or Function_decl["name"].endswith('*') :
input_ovrloading_types = GetSubTypes(Function_decl["inputs"][0][1])
output_types = GetSubTypes(Function_decl["outputs"][0][1])
else:
input_ovrloading_types = [None]
output_types = [None]
funcdeclname_orig = Function_decl["name"]
funcdeclname = Function_decl["name"].strip('*_')
fdc = Function_decl["inputs"][:]
for intype in input_ovrloading_types:
if intype != None:
Function_decl["inputs"] = []
for decl_tpl in fdc:
if IsOfType(intype, decl_tpl[1]):
Function_decl["inputs"] += [(decl_tpl[0], intype, decl_tpl[2])]
else:
Function_decl["inputs"] += [(decl_tpl)]
if funcdeclname_orig.startswith('*'):
funcdeclin = intype + '_' + funcdeclname
else:
funcdeclin = funcdeclname
else:
funcdeclin = funcdeclname
for outype in output_types:
if outype != None:
decl_tpl = Function_decl["outputs"][0]
Function_decl["outputs"] = [ (decl_tpl[0] , outype, decl_tpl[2])]
if funcdeclname_orig.endswith('*'):
funcdeclout = funcdeclin + '_' + outype
else:
funcdeclout = funcdeclin
else:
funcdeclout = funcdeclin
Function_decl["name"] = funcdeclout
# apply filter given in "filter" column
filter_name = Function_decl["filter"]
store = True
for (InTypes, OutTypes) in ANY_TO_ANY_FILTERS.get(filter_name,[]):
outs = reduce(lambda a,b: a or b,
map(lambda testtype : IsOfType(
Function_decl["outputs"][0][1],
testtype), OutTypes))
inps = reduce(lambda a,b: a or b,
map(lambda testtype : IsOfType(
Function_decl["inputs"][0][1],
testtype), InTypes))
if inps and outs and Function_decl["outputs"][0][1] != Function_decl["inputs"][0][1]:
store = True
break
else:
store = False
if store :
# create the copy of decl dict to be appended to section
Function_decl_copy = Function_decl.copy()
Current_section["list"].append(Function_decl_copy)
else:
raise "First function must be in a category"
return Standard_Functions_Decl
StdBlckLst.extend(get_standard_funtions(csv_file_to_table(open(StdFuncsCSV))))
# Dictionary to speedup block type fetching by name
StdBlckDct = OrderedDict()
for section in StdBlckLst:
for desc in section["list"]:
words = desc["comment"].split('"')
if len(words) > 1:
desc["comment"] = words[1]
desc["usage"] = ("\n (%s) => (%s)" %
(", ".join(["%s:%s" % (input[1], input[0])
for input in desc["inputs"]]),
", ".join(["%s:%s" % (output[1], output[0])
for output in desc["outputs"]])))
BlkLst = StdBlckDct.setdefault(desc["name"],[])
BlkLst.append((section["name"], desc))
#-------------------------------------------------------------------------------
# Languages Keywords
#-------------------------------------------------------------------------------
# Keywords for Pou Declaration
POU_BLOCK_START_KEYWORDS = ["FUNCTION", "FUNCTION_BLOCK", "PROGRAM"]
POU_BLOCK_END_KEYWORDS = ["END_FUNCTION", "END_FUNCTION_BLOCK", "END_PROGRAM"]
POU_KEYWORDS = ["EN", "ENO", "F_EDGE", "R_EDGE"] + POU_BLOCK_START_KEYWORDS + POU_BLOCK_END_KEYWORDS
for category in StdBlckLst:
for block in category["list"]:
if block["name"] not in POU_KEYWORDS:
POU_KEYWORDS.append(block["name"])
# Keywords for Type Declaration
TYPE_BLOCK_START_KEYWORDS = ["TYPE", "STRUCT"]
TYPE_BLOCK_END_KEYWORDS = ["END_TYPE", "END_STRUCT"]
TYPE_KEYWORDS = ["ARRAY", "OF", "T", "D", "TIME_OF_DAY", "DATE_AND_TIME"] + TYPE_BLOCK_START_KEYWORDS + TYPE_BLOCK_END_KEYWORDS
TYPE_KEYWORDS.extend([keyword for keyword in TypeHierarchy.keys() if keyword not in TYPE_KEYWORDS])
# Keywords for Variable Declaration
VAR_BLOCK_START_KEYWORDS = ["VAR", "VAR_INPUT", "VAR_OUTPUT", "VAR_IN_OUT", "VAR_TEMP", "VAR_EXTERNAL"]
VAR_BLOCK_END_KEYWORDS = ["END_VAR"]
VAR_KEYWORDS = ["AT", "CONSTANT", "RETAIN", "NON_RETAIN"] + VAR_BLOCK_START_KEYWORDS + VAR_BLOCK_END_KEYWORDS
# Keywords for Configuration Declaration
CONFIG_BLOCK_START_KEYWORDS = ["CONFIGURATION", "RESOURCE", "VAR_ACCESS", "VAR_CONFIG", "VAR_GLOBAL"]
CONFIG_BLOCK_END_KEYWORDS = ["END_CONFIGURATION", "END_RESOURCE", "END_VAR"]
CONFIG_KEYWORDS = ["ON", "PROGRAM", "WITH", "READ_ONLY", "READ_WRITE", "TASK"] + CONFIG_BLOCK_START_KEYWORDS + CONFIG_BLOCK_END_KEYWORDS
# Keywords for Structured Function Chart
SFC_BLOCK_START_KEYWORDS = ["ACTION", "INITIAL_STEP", "STEP", "TRANSITION"]
SFC_BLOCK_END_KEYWORDS = ["END_ACTION", "END_STEP", "END_TRANSITION"]
SFC_KEYWORDS = ["FROM", "TO"] + SFC_BLOCK_START_KEYWORDS + SFC_BLOCK_END_KEYWORDS
# Keywords for Instruction List
IL_KEYWORDS = ["TRUE", "FALSE", "LD", "LDN", "ST", "STN", "S", "R", "AND", "ANDN", "OR", "ORN",
"XOR", "XORN", "NOT", "ADD", "SUB", "MUL", "DIV", "MOD", "GT", "GE", "EQ", "NE",
"LE", "LT", "JMP", "JMPC", "JMPCN", "CAL", "CALC", "CALCN", "RET", "RETC", "RETCN"]
# Keywords for Structured Text
ST_BLOCK_START_KEYWORDS = ["IF", "ELSIF", "ELSE", "CASE", "FOR", "WHILE", "REPEAT"]
ST_BLOCK_END_KEYWORDS = ["END_IF", "END_CASE", "END_FOR", "END_WHILE", "END_REPEAT"]
ST_KEYWORDS = ["TRUE", "FALSE", "THEN", "OF", "TO", "BY", "DO", "DO", "UNTIL", "EXIT",
"RETURN", "NOT", "MOD", "AND", "XOR", "OR"] + ST_BLOCK_START_KEYWORDS + ST_BLOCK_END_KEYWORDS
# All the keywords of IEC
IEC_BLOCK_START_KEYWORDS = []
IEC_BLOCK_END_KEYWORDS = []
IEC_KEYWORDS = ["E", "TRUE", "FALSE"]
for all_keywords, keywords_list in [(IEC_BLOCK_START_KEYWORDS, [POU_BLOCK_START_KEYWORDS, TYPE_BLOCK_START_KEYWORDS,
VAR_BLOCK_START_KEYWORDS, CONFIG_BLOCK_START_KEYWORDS,
SFC_BLOCK_START_KEYWORDS, ST_BLOCK_START_KEYWORDS]),
(IEC_BLOCK_END_KEYWORDS, [POU_BLOCK_END_KEYWORDS, TYPE_BLOCK_END_KEYWORDS,
VAR_BLOCK_END_KEYWORDS, CONFIG_BLOCK_END_KEYWORDS,
SFC_BLOCK_END_KEYWORDS, ST_BLOCK_END_KEYWORDS]),
(IEC_KEYWORDS, [POU_KEYWORDS, TYPE_KEYWORDS, VAR_KEYWORDS, CONFIG_KEYWORDS,
SFC_KEYWORDS, IL_KEYWORDS, ST_KEYWORDS])]:
for keywords in keywords_list:
all_keywords.extend([keyword for keyword in keywords if keyword not in all_keywords])