Package PyFoam :: Package Applications :: Module ReadDictionary
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Source Code for Module PyFoam.Applications.ReadDictionary

 1  #  ICE Revision: $Id: ReadDictionary.py 8450 2008-01-27 20:37:07Z bgschaid $  
 2  """ 
 3  Application class that implements pyFoamReadDictionary 
 4  """ 
 5   
 6  import sys,re 
 7   
 8  from PyFoamApplication import PyFoamApplication 
 9   
10  from PyFoam.RunDictionary.ParsedParameterFile import ParsedParameterFile 
11   
12 -class ReadDictionary(PyFoamApplication):
13 - def __init__(self,args=None):
14 description=""" 15 Reads a value from a Foam-Dictionary and prints it to the screen. 16 The description of the value is word. If the value is 17 non-atomic (a list or a dictionary) it is output in Python-notation. 18 Parts of the expression can be accessed by using the Python-notation for accessing 19 sub-expressions. 20 21 Example of usage: 22 pyFoamReadDictionary.py pitzDaily/0/U "boundaryField['inlet']['type']" 23 """ 24 25 PyFoamApplication.__init__(self,args=args,description=description,usage="%prog [options] <dictfile> <key>",nr=2,interspersed=True)
26
27 - def addOptions(self):
28 self.parser.add_option("--debug",action="store_true",default=None,dest="debug",help="Debugs the parser")
29 30
31 - def run(self):
32 fName=self.parser.getArgs()[0] 33 all=self.parser.getArgs()[1] 34 35 match=re.compile("([a-zA-Z_][a-zA-Z0-9_]*)(.*)").match(all) 36 if match==None: 37 self.error("Expression",all,"not usable as an expression") 38 39 key=match.group(1) 40 sub=None 41 if len(match.groups())>1: 42 if match.group(2)!="": 43 sub=match.group(2) 44 45 try: 46 dictFile=ParsedParameterFile(fName,backup=False,debug=self.opts.debug) 47 val=dictFile[key] 48 except KeyError: 49 self.error("Key: ",key,"not existing in File",fName) 50 except IOError,e: 51 self.error("Problem with file",fName,":",e) 52 53 if sub==None: 54 erg=val 55 else: 56 try: 57 erg=eval(str(val)+sub) 58 except Exception,e: 59 self.error("Problem with subexpression:",sys.exc_info()[0],":",e) 60 61 print erg
62