basic parser

druid (Geoff) — Sun, 25 Nov 2007 07:39:12 GMT

This is a very basic parser, reads each line and creates a string of ':'-separated id nos for mass-mailing a set of accounts in an online game



def joinIds(fin, fout):

    """reads a page from input file, joins Ids with ':'

    

    returns strings to output file, max of 50 ids in each"""

    lines = 0

    outlist = []

    for line in fin:

      if line.strip() != '':

        lines += 1

        outlist.append(line.split()[2])

        if lines % 50 == 0:

            fout.write(":".join(["%s" % Id for Id in outlist]) + "\n\n")

            outlist = []

    fout.write(":".join(["%s" % Id for Id in outlist]) + "\n\n")



try:

    SIA = raw_input('Enter a file to read: ')

    pages = open(SIA, 'r')

except IOError:

    print 'Cannot open file %s for reading. Check file exists and try again.' % SIA

    import sys

    sys.exit(0)

    



default = 'idFile.txt'

out = raw_input('File name for output: ')

if out == '':

    oFile = open(default, 'a')

else:

    default = out

    oFile = open(default, 'a')



joinIds(pages, oFile)

pages.close()

oFile.close()



print 'Id strings have been output to %s. Happy mass-mailing! ;)' % default

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basic parser