sqs2.py

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#!c:/python26/python.exe
#
# syntax:   sqs2.py  "/string to locate/" fileid 
import sys
import rocon_uri.rule_parser as rule_parser

rule=['sqs  ::=  parms  fileid ',
      'parms::=  sep car* sep ',
          'sep  ::=  r"\S" ',
          'car  ::=  r"." ^sep ',
          'fileid::= r"\S"* ']
#
parms=' '.join(sys.argv[1:])

cmp=rp.match(rule,parms)
if cmp==None:
        print "Error in parsing:"
else:
        id=None
        try:
                id=open(cmp.fileid)
                for l in id.readlines():
                        if l.find(cmp.car)>-1: 
                                print l[:-1]
        except Exception,e:
                print e
        else:
                if id!=None: id.close()