tks this ws really helpful, i used catdoc, catppt, xls2csv, pdftotext
from xdf and ps2txt from ghostview!..
BJörn Lindqvist wrote:
> On 4 Jul 2006 08:38:47 -0700, Gaurav Agarwal
> <[EMAIL PROTECTED]> wrote:
> > Thanks Steven, Actually i wanted a do text processing for my office
> > where I can view all files in the system and use the first three to
> > give a summary of the document. Instead of having somebody actually
> > entering the summary. Seems there is no one code that can act as
> > convertor across formats, i'll have to check out convertors for
> > individual formats.
>
> I have some old code that does just that. It uses pdftotext, catdoc
> and links to convert .doc, .pdf and .html to text.
>
> ##################################################################
> import mimetypes
> from subprocess import call, Popen, PIPE
> import sys
>
> class ConversionError(Exception):
> pass
>
> class UnknownMimeType(ConversionError):
> pass
>
> class NotAMimeType(ConversionError):
> pass
>
> class ParseError(ConversionError):
> pass
>
> def has_program(progname):
> return call(["which", progname], stdout = PIPE) == 0
>
> def check_requirements():
> missing = []
> for prog in "catdoc", "pdftotext", "links":
> if not has_program(prog):
> missing.append(prog)
> if missing:
> print "You need to have the programs:", " ".join(missing)
> return False
> return True
>
> if not check_requirements():
> print "Needed external programs not found, quitting"
> sys.exit(1)
>
> def get_catdoc_args(infile):
> return ["catdoc", "-s", "8859-1", infile]
>
> def get_pdftotext_args(infile):
> return ["pdftotext", infile, "-"]
>
> def get_links_args(infile):
> return ["links", infile, "-dump"]
>
> def totext(document):
> filetype_to_args_map = {"application/msword" : get_catdoc_args,
> "application/pdf" : get_pdftotext_args,
> "text/html" : get_links_args}
>
> ftype, ign = mimetypes.guess_type(document)
> if not ftype:
> raise NotAMimeType, "Couldn't detect mimetype for %s" % document
> try:
> argfunc = filetype_to_args_map[ftype]
> except KeyError:
> s = "Don't know how to handle %s documents" % ftype
> raise UnknownMimeType, s
>
> p = Popen(argfunc(document), stdout = PIPE, stderr = PIPE)
> text = p.stdout.read()
> if p.wait():
> # Force a better exception to be thrown if the file doesn't exist.
> open(document)
> raise ParseError, "Failed to parse %s" % document
> return text
>
> if __name__ == "__main__":
> print totext("testpdf.pdf")
>
>
>
> --
> mvh Björn
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