panletter

#!/usr/bin/env python

import os, sys, argparse

# Read input and output arguments, keeping all others as they are
parser = argparse.ArgumentParser(prog='panletter',
				 formatter_class=argparse.RawDescriptionHelpFormatter,
                                 description="""
Convert one or more markdown files to a letter in PDF or LaTeX format using
the scrlttr2 template. For more information on using this tool and the template,
visit
                 https://github.com/JensErat/pandoc-scrlttr2

(c) Jens Erat 2014, BSD-License

""",
                                 epilog='''
All pandoc options can be used.

Example: panletter -fmarkdown+pipe_tables input-letter.md 

This example will enable the pandoc extension pipe_tables and allow to
include tables in the letter.

Beware that there is no space allowed between the pandoc option switch
(here -f) and the parameter, as otherwise panletter will consider the
parameter as an input file.
'''
                                )

parser.add_argument('-o', '--output',
                    help="""
Output file name. If ommited, the first input's file name with .pdf extension
will be used. To generate a LaTeX file, pass a filename with .tex extension.
""",
                    metavar='file')
parser.add_argument('input',
                    nargs='+',
                    help='one or more input files',
                    metavar='file')
(files, options) = parser.parse_known_args()

# If output is not set, use first input file's name
if files.output is None:
  files.output = os.path.splitext(files.input[0])[0] + '.pdf'

# Call pandoc
os.execvp('pandoc', [
                      'pandoc',
                      '--template=scrlttr2',
                      '-o', files.output
                    ] + options + files.input)