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1 # ICE Revision: $Id$ 2 """Working with parameter-files""" 3 4 import re,os 5 6 from PyFoam.Basics.LineReader import LineReader 7 from PyFoam.RunDictionary.FileBasis import FileBasisBackup 810 """Represents a OpenFOAM parameter file""" 117613 """@param name: The name of the parameter file 14 @param backup: create a backup-copy of the file""" 15 16 FileBasisBackup.__init__(self,name,backup=backup)1719 """creates a regular expression that looks for aparameter 20 21 parameter - name of the parameter""" 22 return re.compile("(.*)\s*"+parameter+"\s+(.*)\s*;(.*)")2325 """reads the value of a parameter 26 27 parameter - name of the parameter""" 28 exp=self.parameterPattern(parameter) 29 30 l=LineReader() 31 self.openFile() 32 33 erg="" 34 35 while l.read(self.fh): 36 m=exp.match(l.line) 37 if m!=None: 38 if m.group(1).find(self.removedString)<0: 39 erg=m.group(2) 40 break 41 42 self.closeFile() 43 return erg4446 """writes the value of a parameter 47 48 @param parameter: name of the parameter 49 @param newval: the new value 50 @return: old value of the parameter""" 51 52 oldVal=self.readParameter(parameter) 53 54 exp=self.parameterPattern(parameter) 55 56 l=LineReader() 57 self.openFile() 58 59 (fh,fn)=self.makeTemp() 60 61 while l.read(self.fh): 62 toPrint=l.line 63 64 m=exp.match(l.line) 65 if m!=None: 66 if m.group(1).find(self.removedString)<0: 67 toPrint =self.removedString+l.line+"\n" 68 toPrint+=parameter+" "+str(newval)+"; "+self.addedString 69 fh.write(toPrint+"\n") 70 71 self.closeFile() 72 fh.close() 73 os.rename(fn,self.name) 74 75 return oldVal
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